├── LICENSE
├── README.md
├── converter.sh
├── converter_beta.sh
├── silk
├── Makefile
├── interface
│ ├── SKP_Silk_SDK_API.h
│ ├── SKP_Silk_control.h
│ ├── SKP_Silk_errors.h
│ └── SKP_Silk_typedef.h
├── src
│ ├── SKP_Silk_A2NLSF.c
│ ├── SKP_Silk_A2NLSF_arm.S
│ ├── SKP_Silk_AsmHelper.h
│ ├── SKP_Silk_AsmPreproc.h
│ ├── SKP_Silk_CNG.c
│ ├── SKP_Silk_HP_variable_cutoff_FIX.c
│ ├── SKP_Silk_Inlines.h
│ ├── SKP_Silk_LBRR_reset.c
│ ├── SKP_Silk_LPC_inv_pred_gain.c
│ ├── SKP_Silk_LPC_synthesis_filter.c
│ ├── SKP_Silk_LPC_synthesis_order16.c
│ ├── SKP_Silk_LP_variable_cutoff.c
│ ├── SKP_Silk_LSF_cos_table.c
│ ├── SKP_Silk_LTP_analysis_filter_FIX.c
│ ├── SKP_Silk_LTP_scale_ctrl_FIX.c
│ ├── SKP_Silk_MA.c
│ ├── SKP_Silk_MA_arm.S
│ ├── SKP_Silk_NLSF2A.c
│ ├── SKP_Silk_NLSF2A_stable.c
│ ├── SKP_Silk_NLSF_MSVQ_decode.c
│ ├── SKP_Silk_NLSF_MSVQ_encode_FIX.c
│ ├── SKP_Silk_NLSF_VQ_rate_distortion_FIX.c
│ ├── SKP_Silk_NLSF_VQ_sum_error_FIX.c
│ ├── SKP_Silk_NLSF_VQ_sum_error_FIX_arm.S
│ ├── SKP_Silk_NLSF_VQ_weights_laroia.c
│ ├── SKP_Silk_NLSF_stabilize.c
│ ├── SKP_Silk_NSQ.c
│ ├── SKP_Silk_NSQ_del_dec.c
│ ├── SKP_Silk_PLC.c
│ ├── SKP_Silk_PLC.h
│ ├── SKP_Silk_SigProc_FIX.h
│ ├── SKP_Silk_VAD.c
│ ├── SKP_Silk_VQ_nearest_neighbor_FIX.c
│ ├── SKP_Silk_allpass_int_arm.S
│ ├── SKP_Silk_ana_filt_bank_1.c
│ ├── SKP_Silk_ana_filt_bank_1_arm.S
│ ├── SKP_Silk_apply_sine_window.c
│ ├── SKP_Silk_array_maxabs.c
│ ├── SKP_Silk_array_maxabs_arm.S
│ ├── SKP_Silk_autocorr.c
│ ├── SKP_Silk_biquad.c
│ ├── SKP_Silk_biquad_alt.c
│ ├── SKP_Silk_burg_modified.c
│ ├── SKP_Silk_bwexpander.c
│ ├── SKP_Silk_bwexpander_32.c
│ ├── SKP_Silk_clz_arm.S
│ ├── SKP_Silk_code_signs.c
│ ├── SKP_Silk_common_pitch_est_defines.h
│ ├── SKP_Silk_control_audio_bandwidth.c
│ ├── SKP_Silk_control_codec_FIX.c
│ ├── SKP_Silk_corrMatrix_FIX.c
│ ├── SKP_Silk_create_init_destroy.c
│ ├── SKP_Silk_dec_API.c
│ ├── SKP_Silk_decode_core.c
│ ├── SKP_Silk_decode_core_arm.S
│ ├── SKP_Silk_decode_frame.c
│ ├── SKP_Silk_decode_parameters.c
│ ├── SKP_Silk_decode_pitch.c
│ ├── SKP_Silk_decode_pulses.c
│ ├── SKP_Silk_decoder_set_fs.c
│ ├── SKP_Silk_define.h
│ ├── SKP_Silk_detect_SWB_input.c
│ ├── SKP_Silk_div_oabi.c
│ ├── SKP_Silk_enc_API.c
│ ├── SKP_Silk_encode_frame_FIX.c
│ ├── SKP_Silk_encode_parameters.c
│ ├── SKP_Silk_encode_pulses.c
│ ├── SKP_Silk_find_LPC_FIX.c
│ ├── SKP_Silk_find_LTP_FIX.c
│ ├── SKP_Silk_find_pitch_lags_FIX.c
│ ├── SKP_Silk_find_pred_coefs_FIX.c
│ ├── SKP_Silk_gain_quant.c
│ ├── SKP_Silk_init_encoder_FIX.c
│ ├── SKP_Silk_inner_prod_aligned.c
│ ├── SKP_Silk_inner_prod_aligned_arm.S
│ ├── SKP_Silk_interpolate.c
│ ├── SKP_Silk_k2a.c
│ ├── SKP_Silk_k2a_Q16.c
│ ├── SKP_Silk_lin2log.c
│ ├── SKP_Silk_lin2log_arm.S
│ ├── SKP_Silk_log2lin.c
│ ├── SKP_Silk_macros.h
│ ├── SKP_Silk_macros_arm.h
│ ├── SKP_Silk_main.h
│ ├── SKP_Silk_main_FIX.h
│ ├── SKP_Silk_noise_shape_analysis_FIX.c
│ ├── SKP_Silk_pitch_analysis_core.c
│ ├── SKP_Silk_pitch_est_defines.h
│ ├── SKP_Silk_pitch_est_tables.c
│ ├── SKP_Silk_prefilter_FIX.c
│ ├── SKP_Silk_prefilter_FIX_arm.S
│ ├── SKP_Silk_process_NLSFs_FIX.c
│ ├── SKP_Silk_process_gains_FIX.c
│ ├── SKP_Silk_quant_LTP_gains_FIX.c
│ ├── SKP_Silk_range_coder.c
│ ├── SKP_Silk_regularize_correlations_FIX.c
│ ├── SKP_Silk_resampler.c
│ ├── SKP_Silk_resampler_down2.c
│ ├── SKP_Silk_resampler_down2_3.c
│ ├── SKP_Silk_resampler_down2_arm.S
│ ├── SKP_Silk_resampler_down3.c
│ ├── SKP_Silk_resampler_private.h
│ ├── SKP_Silk_resampler_private_AR2.c
│ ├── SKP_Silk_resampler_private_AR2_arm.S
│ ├── SKP_Silk_resampler_private_ARMA4.c
│ ├── SKP_Silk_resampler_private_ARMA4_arm.S
│ ├── SKP_Silk_resampler_private_IIR_FIR.c
│ ├── SKP_Silk_resampler_private_IIR_FIR_arm.S
│ ├── SKP_Silk_resampler_private_copy.c
│ ├── SKP_Silk_resampler_private_down4.c
│ ├── SKP_Silk_resampler_private_down_FIR.c
│ ├── SKP_Silk_resampler_private_down_FIR_arm.S
│ ├── SKP_Silk_resampler_private_up2_HQ.c
│ ├── SKP_Silk_resampler_private_up2_HQ_arm.S
│ ├── SKP_Silk_resampler_private_up4.c
│ ├── SKP_Silk_resampler_rom.c
│ ├── SKP_Silk_resampler_rom.h
│ ├── SKP_Silk_resampler_rom_arm.S
│ ├── SKP_Silk_resampler_structs.h
│ ├── SKP_Silk_resampler_up2.c
│ ├── SKP_Silk_resampler_up2_arm.S
│ ├── SKP_Silk_residual_energy16_FIX.c
│ ├── SKP_Silk_residual_energy_FIX.c
│ ├── SKP_Silk_scale_copy_vector16.c
│ ├── SKP_Silk_scale_vector.c
│ ├── SKP_Silk_schur.c
│ ├── SKP_Silk_schur64.c
│ ├── SKP_Silk_schur64_arm.S
│ ├── SKP_Silk_setup_complexity.h
│ ├── SKP_Silk_shell_coder.c
│ ├── SKP_Silk_sigm_Q15.c
│ ├── SKP_Silk_sigm_Q15_arm.S
│ ├── SKP_Silk_solve_LS_FIX.c
│ ├── SKP_Silk_sort.c
│ ├── SKP_Silk_structs.h
│ ├── SKP_Silk_structs_FIX.h
│ ├── SKP_Silk_sum_sqr_shift.c
│ ├── SKP_Silk_sum_sqr_shift_arm.S
│ ├── SKP_Silk_tables.h
│ ├── SKP_Silk_tables_LTP.c
│ ├── SKP_Silk_tables_NLSF_CB0_10.c
│ ├── SKP_Silk_tables_NLSF_CB0_10.h
│ ├── SKP_Silk_tables_NLSF_CB0_16.c
│ ├── SKP_Silk_tables_NLSF_CB0_16.h
│ ├── SKP_Silk_tables_NLSF_CB1_10.c
│ ├── SKP_Silk_tables_NLSF_CB1_10.h
│ ├── SKP_Silk_tables_NLSF_CB1_16.c
│ ├── SKP_Silk_tables_NLSF_CB1_16.h
│ ├── SKP_Silk_tables_gain.c
│ ├── SKP_Silk_tables_other.c
│ ├── SKP_Silk_tables_pitch_lag.c
│ ├── SKP_Silk_tables_pulses_per_block.c
│ ├── SKP_Silk_tables_sign.c
│ ├── SKP_Silk_tables_type_offset.c
│ ├── SKP_Silk_tuning_parameters.h
│ ├── SKP_Silk_warped_autocorrelation_FIX.c
│ └── SKP_Silk_warped_autocorrelation_FIX_arm.S
└── test
│ ├── Decoder.c
│ ├── Encoder.c
│ └── signalCompare.c
└── windows
├── CHANGELOG.md
├── README.md
├── ffmpeg compatible with XP.zip
├── ffmpeg.zip
├── lame.exe
├── screenshots
├── 20160413145612.png
├── 20160413145643.png
├── 20160413171427.png
├── 20160413171521.png
├── 20160601170900.png
├── 20160601170959.png
├── 20160928221726.png
├── 20160928221818.png
├── 20170528161523.png
└── 20170528161558.png
├── silk2mp3.exe
├── silk_v3_decoder.exe
└── silk_v3_encoder.exe
/LICENSE:
--------------------------------------------------------------------------------
1 | The MIT License (MIT)
2 |
3 | Copyright (c) 2020 Karl Chen
4 |
5 | Permission is hereby granted, free of charge, to any person obtaining a copy
6 | of this software and associated documentation files (the "Software"), to deal
7 | in the Software without restriction, including without limitation the rights
8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 |
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | ## Description
2 | Decode silk v3 audio files (like wechat amr, aud files, qq slk files) and convert to other format (like mp3).
3 | Batch conversion support.
4 |
5 | <a href="https://github.com/kn007/silk-v3-decoder/blob/master/LICENSE"><img src="https://img.shields.io/badge/license-MIT-green.svg?style=flat"></a>
6 |
7 | ```
8 | silk-v3-decoder (Decode Silk V3 Audio Files)
9 | |
10 | |--- silk (Skype Silk Codec)
11 | |
12 | |--- windows (For Windows Platform Users Program)
13 | |
14 | |--- LICENSE (License)
15 | |
16 | |--- README.md (Readme)
17 | |
18 | |--- converter.sh (Converter Shell Script)
19 | |
20 | |--- converter_beta.sh (Converter Shell Script(Beta))
21 | ```
22 |
23 | ## Requirement
24 |
25 | * gcc
26 | * ffmpeg
27 |
28 | ## How To Use
29 |
30 | ```
31 | sh converter.sh silk_v3_file/input_folder output_format/output_folder flag(format)
32 | ```
33 | E.g., convert a file:
34 | ```
35 | sh converter.sh 33921FF3774A773BB193B6FD4AD7C33E.slk mp3
36 | ```
37 | Notice: the `33921FF3774A773BB193B6FD4AD7C33E.slk` is an audio file you need to convert, the `mp3` is a format you need to output.
38 |
39 | If you need to convert all audio files in one folder, now batch conversion support, using like this:
40 | ```
41 | sh converter.sh input ouput mp3
42 | ```
43 | Notice: the `input` folder is content the audio files you need to convert, the `output` folder is content the audio files after conversion finished, the `mp3` is a format you need to output.
44 |
45 | If you need to convert files on the `Windows` platfrom, [click here](https://dl.kn007.net/directlink/silk2mp3.zip "silk2mp3.zip") to download zip package for `silk2mp3.exe` to convert, also can <a href='/windows' target="_blank">click here</a> to get more information.
46 |
47 | ## Other
48 |
49 | Also provide silk v3 encode codec, compatible with Wechat/QQ.
50 |
51 | ## About
52 |
53 | [kn007's blog](https://kn007.net)
54 |
55 | ***
56 |
57 | ## 中文说明
58 | 解码silk v3音频文件（类似微信的amr和aud文件、QQ的slk文件）并转换为其它格式（如MP3）。
59 | 支持批量转换。
60 |
61 | <a href="https://github.com/kn007/silk-v3-decoder/blob/master/LICENSE"><img src="https://img.shields.io/badge/license-MIT-green.svg?style=flat"></a>
62 |
63 | ```
64 | silk-v3-decoder (解码silk v3音频文件)
65 | |
66 | |--- silk (Skype Silk源码)
67 | |
68 | |--- windows (可用于Windows平台的应用程序)
69 | |
70 | |--- LICENSE (软件使用范围许可)
71 | |
72 | |--- README.md (说明)
73 | |
74 | |--- converter.sh (转换脚本)
75 | |
76 | |--- converter_beta.sh (转换脚本(测试版))
77 | ```
78 |
79 | ## 依赖组件
80 |
81 | * gcc
82 | * ffmpeg
83 |
84 | ## 如何使用
85 |
86 | ```
87 | sh converter.sh silk_v3_file/input_folder output_format/output_folder flag(format)
88 | ```
89 | 比如转换一个文件，使用：
90 | ```
91 | sh converter.sh 33921FF3774A773BB193B6FD4AD7C33E.slk mp3
92 | ```
93 | 注意：其中`33921FF3774A773BB193B6FD4AD7C33E.slk`是要转换的文件，而`mp3`是最终转换后输出的格式。
94 |
95 | 如果你需要批量转换，比如转换某个目录，那么使用：
96 | ```
97 | sh converter.sh input ouput mp3
98 | ```
99 | 注意：其中`input`是要转换的目录，而`output`是最终转换后音频输出的目录，最后的`mp3`参数是最终转换后输出的格式。
100 |
101 | 如果你需要在`Windows`下使用该程序，请下载[silk2mp3.exe](https://dl.kn007.net/directlink/silk2mp3.zip "silk2mp3.zip")应用程序来完成转换，你可<a href='/windows' target="_blank">点击这里</a>来查看更多Windows下如何使用的相关说明。
102 |
103 | ## 其他说明
104 |
105 | 如果你需要对音频文件进行silk v3编码，源码也已经提供，并且对微信、QQ进行了兼容，详见参数。
106 |
107 | ## 关于作者
108 |
109 | [kn007的个人博客](https://kn007.net)
110 |
--------------------------------------------------------------------------------
/converter.sh:
--------------------------------------------------------------------------------
1 | #!/bin/bash
2 | # File: converter.sh
3 | # Date: August 19th, 2016
4 | # Time: 18:56:52 +0800
5 | # Author: kn007 <kn007@126.com>
6 | # Blog: https://kn007.net
7 | # Link: https://github.com/kn007/silk-v3-decoder
8 | # Usage: sh converter.sh silk_v3_file/input_folder output_format/output_folder flag(format)
9 | # Flag: not define ---- not define, convert a file
10 | # other value ---- format, convert a folder, batch conversion support
11 | # Requirement: gcc ffmpeg
12 |
13 | # Colors
14 | RED="$(tput setaf 1 2>/dev/null || echo '\e[0;31m')"
15 | GREEN="$(tput setaf 2 2>/dev/null || echo '\e[0;32m')"
16 | YELLOW="$(tput setaf 3 2>/dev/null || echo '\e[0;33m')"
17 | WHITE="$(tput setaf 7 2>/dev/null || echo '\e[0;37m')"
18 | RESET="$(tput sgr 0 2>/dev/null || echo '\e[0m')"
19 |
20 | # Main
21 | cur_dir=$(cd `dirname $0`; pwd)
22 |
23 | if [ ! -r "$cur_dir/silk/decoder" ]; then
24 | echo -e "${WHITE}[Notice]${RESET} Silk v3 Decoder is not found, compile it."
25 | cd $cur_dir/silk
26 | make && make decoder
27 | [ ! -r "$cur_dir/silk/decoder" ]&&echo -e "${RED}[Error]${RESET} Silk v3 Decoder Compile False, Please Check Your System For GCC."&&exit
28 | echo -e "${WHITE}========= Silk v3 Decoder Compile Finish =========${RESET}"
29 | fi
30 |
31 | cd $cur_dir
32 |
33 | while [ $3 ]; do
34 | [[ ! -z "$(pidof ffmpeg)" ]]&&echo -e "${RED}[Error]${RESET} ffmpeg is occupied by another application, please check it."&&exit
35 | [ ! -d "$1" ]&&echo -e "${RED}[Error]${RESET} Input folder not found, please check it."&&exit
36 | TOTAL=$(ls $1|wc -l)
37 | [ ! -d "$2" ]&&mkdir "$2"&&echo -e "${WHITE}[Notice]${RESET} Output folder not found, create it."
38 | [ ! -d "$2" ]&&echo -e "${RED}[Error]${RESET} Output folder could not be created, please check it."&&exit
39 | CURRENT=0
40 | echo -e "${WHITE}========= Batch Conversion Start ==========${RESET}"
41 | ls $1 | while read line; do
42 | let CURRENT+=1
43 | $cur_dir/silk/decoder "$1/$line" "$2/$line.pcm" > /dev/null 2>&1
44 | if [ ! -f "$2/$line.pcm" ]; then
45 | ffmpeg -y -i "$1/$line" "$2/${line%.*}.$3" > /dev/null 2>&1 &
46 | ffmpeg_pid=$!
47 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
48 | [ -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line to ${line%.*}.$3 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&continue
49 | echo -e "[$CURRENT/$TOTAL]${YELLOW}[Warning]${RESET} Convert $line false, maybe not a silk v3 encoded file."&&continue
50 | fi
51 | ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$2/$line.pcm" "$2/${line%.*}.$3" > /dev/null 2>&1 &
52 | ffmpeg_pid=$!
53 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
54 | rm "$2/$line.pcm"
55 | [ ! -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${YELLOW}[Warning]${RESET} Convert $line false, maybe ffmpeg no format handler for $3."&&continue
56 | echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line To ${line%.*}.$3 Finish."
57 | done
58 | echo -e "${WHITE}========= Batch Conversion Finish =========${RESET}"
59 | exit
60 | done
61 |
62 | $cur_dir/silk/decoder "$1" "$1.pcm" > /dev/null 2>&1
63 | if [ ! -f "$1.pcm" ]; then
64 | ffmpeg -y -i "$1" "${1%.*}.$2" > /dev/null 2>&1 &
65 | ffmpeg_pid=$!
66 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
67 | [ -f "${1%.*}.$2" ]&&echo -e "${GREEN}[OK]${RESET} Convert $1 to ${1%.*}.$2 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&exit
68 | echo -e "${YELLOW}[Warning]${RESET} Convert $1 false, maybe not a silk v3 encoded file."&&exit
69 | fi
70 | ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$1.pcm" "${1%.*}.$2" > /dev/null 2>&1
71 | ffmpeg_pid=$!
72 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
73 | rm "$1.pcm"
74 | [ ! -f "${1%.*}.$2" ]&&echo -e "${YELLOW}[Warning]${RESET} Convert $1 false, maybe ffmpeg no format handler for $2."&&exit
75 | echo -e "${GREEN}[OK]${RESET} Convert $1 To ${1%.*}.$2 Finish."
76 | exit
77 |
--------------------------------------------------------------------------------
/converter_beta.sh:
--------------------------------------------------------------------------------
1 | #!/bin/bash
2 | # File: converter_beta.sh
3 | # Date: March 20th, 2017
4 | # Time: 22:05:12 +0800
5 | # Author: kn007 <kn007@126.com>
6 | # Blog: https://kn007.net
7 | # Link: https://github.com/kn007/silk-v3-decoder
8 | # Usage: sh converter.sh silk_v3_file/input_folder output_format/output_folder flag(format)
9 | # Flag: not define ---- not define, convert a file
10 | # other value ---- format, convert a folder, batch conversion support
11 | # Requirement: gcc ffmpeg
12 |
13 | # Colors
14 | RED="\e[31;1m"
15 | GREEN="\e[32;1m"
16 | YELLOW="\e[33;1m"
17 | WHITE="\e[37;1m"
18 | RESET="\e[0m"
19 |
20 | # Main
21 | cur_dir=$(cd `dirname $0`; pwd)
22 |
23 | if [ ! -r "$cur_dir/silk/decoder" ]; then
24 | echo -e "${WHITE}[Notice]${RESET} Silk v3 Decoder is not found, compile it."
25 | cd $cur_dir/silk
26 | make && make decoder
27 | [ ! -r "$cur_dir/silk/decoder" ]&&echo -e "${RED}[Error]${RESET} Silk v3 Decoder Compile False, Please Check Your System For GCC."&&exit
28 | echo -e "${WHITE}========= Silk v3 Decoder Compile Finish =========${RESET}"
29 | fi
30 |
31 | cd $cur_dir
32 |
33 | while [ $3 ]; do
34 | pidof /usr/bin/ffmpeg&&echo -e "${RED}[Error]${RESET} ffmpeg is occupied by another application, please check it."&&exit
35 | [ ! -d "$1" ]&&echo -e "${RED}[Error]${RESET} Input folder not found, please check it."&&exit
36 | TOTAL=$(ls $1|wc -l)
37 | [ ! -d "$2" ]&&mkdir "$2"&&echo -e "${WHITE}[Notice]${RESET} Output folder not found, create it."
38 | [ ! -d "$2" ]&&echo -e "${RED}[Error]${RESET} Output folder could not be created, please check it."&&exit
39 | CURRENT=0
40 | echo -e "${WHITE}========= Batch Conversion Start ==========${RESET}"
41 | ls $1 | while read line; do
42 | let CURRENT+=1
43 | $cur_dir/silk/decoder "$1/$line" "$2/$line.pcm" > /dev/null 2>&1
44 | if [ ! -f "$2/$line.pcm" ]; then
45 | ffmpeg -y -i "$1/$line" "$2/${line%.*}.$3" > /dev/null 2>&1 &
46 | ffmpeg_pid=$!
47 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
48 | [ -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line to ${line%.*}.$3 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&continue
49 | sed -i '1i\\#\!AMR' "$1/$line"
50 | ffmpeg -y -i "$1/$line" "$2/${line%.*}.$3" > /dev/null 2>&1 &
51 | ffmpeg_pid=$!
52 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
53 | [ -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${YELLOW}[Warning]${RESET} Could not recognize this file, force using ffmpeg convert $line to ${line%.*}.$3 success, maybe have error.${RESET}"&&continue
54 | echo -e "[$CURRENT/$TOTAL]${RED}[Error]${RESET} Convert $line false, maybe not a audio file."&&continue
55 | fi
56 | ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$2/$line.pcm" "$2/${line%.*}.$3" > /dev/null 2>&1 &
57 | ffmpeg_pid=$!
58 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
59 | rm "$2/$line.pcm"
60 | [ ! -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${RED}[Error]${RESET} Convert $line false, maybe ffmpeg no format handler for $3."&&continue
61 | echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line To ${line%.*}.$3 Finish."
62 | done
63 | echo -e "${WHITE}========= Batch Conversion Finish =========${RESET}"
64 | exit
65 | done
66 |
67 | $cur_dir/silk/decoder "$1" "$1.pcm" > /dev/null 2>&1
68 | if [ ! -f "$1.pcm" ]; then
69 | ffmpeg -y -i "$1" "${1%.*}.$2" > /dev/null 2>&1 &
70 | ffmpeg_pid=$!
71 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
72 | [ -f "${1%.*}.$2" ]&&echo -e "${GREEN}[OK]${RESET} Convert $1 to ${1%.*}.$2 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&exit
73 | sed -i '1i\\#\!AMR' "$1"
74 | ffmpeg -y -i "$1" "${1%.*}.$2" > /dev/null 2>&1 &
75 | ffmpeg_pid=$!
76 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
77 | [ -f "${1%.*}.$2" ]&&echo -e "${YELLOW}[Warning]${RESET} Could not recognize this file, force using ffmpeg convert $1 to ${1%.*}.$2 success, maybe have error.${RESET}"&&exit
78 | echo -e "${RED}[Error]${RESET} Convert $1 false, maybe not a audio file."&&exit
79 | fi
80 | ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$1.pcm" "${1%.*}.$2" > /dev/null 2>&1
81 | ffmpeg_pid=$!
82 | while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
83 | rm "$1.pcm"
84 | [ ! -f "${1%.*}.$2" ]&&echo -e "${RED}[Error]${RESET} Convert $1 false, maybe ffmpeg no format handler for $2."&&exit
85 | echo -e "${GREEN}[OK]${RESET} Convert $1 To ${1%.*}.$2 Finish."
86 | exit
87 |
--------------------------------------------------------------------------------
/silk/Makefile:
--------------------------------------------------------------------------------
1 | #
2 | # Makefile for Silk SDK
3 | #
4 | # Copyright (c) 2012, Skype Limited
5 | # All rights reserved.
6 | #
7 |
8 | #Platform detection and settings
9 |
10 | BUILD_OS := $(shell uname | sed -e 's/^.*Darwin.*/MacOS-X/ ; s/^.*CYGWIN.*/Windows/')
11 |
12 | BUILD_ARCHITECTURE := $(shell uname -m | sed -e 's/i686/i386/')
13 |
14 | EXESUFFIX =
15 | LIBPREFIX = lib
16 | LIBSUFFIX = .a
17 | OBJSUFFIX = .o
18 |
19 | CC = $(TOOLCHAIN_PREFIX)gcc$(TOOLCHAIN_SUFFIX)
20 | CXX = $(TOOLCHAIN_PREFIX)g++$(TOOLCHAIN_SUFFIX)
21 | AR = $(TOOLCHAIN_PREFIX)ar
22 | RANLIB = $(TOOLCHAIN_PREFIX)ranlib
23 | CP = $(TOOLCHAIN_PREFIX)cp
24 |
25 | cppflags-from-defines = $(addprefix -D,$(1))
26 | cppflags-from-includes = $(addprefix -I,$(1))
27 | ldflags-from-ldlibdirs = $(addprefix -L,$(1))
28 | ldlibs-from-libs = $(addprefix -l,$(1))
29 |
30 | ifneq (,$(TARGET_CPU))
31 | CFLAGS += -mcpu=$(TARGET_CPU)
32 | ifneq (,$(TARGET_TUNE))
33 | CFLAGS += -mtune=$(TARGET_TUNE)
34 | else
35 | CFLAGS += -mtune=$(TARGET_CPU)
36 | endif
37 | endif
38 | ifneq (,$(TARGET_FPU))
39 | CFLAGS += -mfpu=$(TARGET_FPU)
40 | endif
41 | ifneq (,$(TARGET_ARCH))
42 | CFLAGS += -march=$(TARGET_ARCH)
43 | endif
44 | # Helper to make NEON testing easier, when using USE_NEON=yes do not set TARGET_CPU or TARGET_FPU
45 | ifeq (yes,$(USE_NEON))
46 | CFLAGS += -mcpu=cortex-a8 -mfloat-abi=softfp -mfpu=neon
47 | endif
48 |
49 | ifeq ($(BUILD_OS), MacOS-X)
50 | #$(info Detected macOS, skipping -enable-threads in CFLAGS)
51 | CFLAGS += -Wall
52 | else
53 | CFLAGS += -Wall -enable-threads -O3
54 | endif
55 |
56 | CFLAGS += $(call cppflags-from-defines,$(CDEFINES))
57 | CFLAGS += $(call cppflags-from-defines,$(ADDED_DEFINES))
58 | CFLAGS += $(call cppflags-from-includes,$(CINCLUDES))
59 | LDFLAGS += $(call ldflags-from-ldlibdirs,$(LDLIBDIRS))
60 | LDLIBS += $(call ldlibs-from-libs,$(LIBS))
61 |
62 | COMPILE.c.cmdline = $(CC) -c $(CFLAGS) $(ADDED_CFLAGS) -o $@ lt;
63 | COMPILE.S.cmdline = $(CC) -c $(CFLAGS) $(ADDED_CFLAGS) -o $@ lt;
64 | COMPILE.cpp.cmdline = $(CXX) -c $(CFLAGS) $(ADDED_CFLAGS) -o $@ lt;
65 | LINK.o = $(CXX) $(LDPREFLAGS) $(LDFLAGS)
66 | LINK.o.cmdline = $(LINK.o) $^ $(LDLIBS) -o $@$(EXESUFFIX)
67 | ARCHIVE.cmdline = $(AR) $(ARFLAGS) $@ $^ && $(RANLIB) $@
68 |
69 | %$(OBJSUFFIX):%.c
70 | $(COMPILE.c.cmdline)
71 |
72 | %$(OBJSUFFIX):%.cpp
73 | $(COMPILE.cpp.cmdline)
74 |
75 | %$(OBJSUFFIX):%.S
76 | $(COMPILE.S.cmdline)
77 |
78 | # Directives
79 |
80 | CINCLUDES += interface src test
81 |
82 | # VPATH e.g. VPATH = src:../headers
83 | VPATH = ./ \
84 | interface \
85 | src \
86 | test
87 |
88 | # Variable definitions
89 | LIB_NAME = SKP_SILK_SDK
90 | TARGET = $(LIBPREFIX)$(LIB_NAME)$(LIBSUFFIX)
91 |
92 | SRCS_C = $(wildcard src/*.c)
93 | ifneq (,$(TOOLCHAIN_PREFIX))
94 | SRCS_S = $(wildcard src/*.S)
95 | OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(SRCS_C)) $(patsubst %.S,%$(OBJSUFFIX),$(SRCS_S))
96 | else
97 | OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(SRCS_C))
98 | endif
99 |
100 | ENCODER_SRCS_C = test/Encoder.c
101 | ENCODER_OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(ENCODER_SRCS_C))
102 |
103 | DECODER_SRCS_C = test/Decoder.c
104 | DECODER_OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(DECODER_SRCS_C))
105 |
106 | SIGNALCMP_SRCS_C = test/signalCompare.c
107 | SIGNALCMP_OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(SIGNALCMP_SRCS_C))
108 |
109 | LIBS = \
110 | $(LIB_NAME)
111 |
112 | LDLIBDIRS = ./
113 |
114 | # Rules
115 | default: all
116 |
117 | all: $(TARGET) decoder
118 |
119 | lib: $(TARGET)
120 |
121 | $(TARGET): $(OBJS)
122 | $(ARCHIVE.cmdline)
123 |
124 | encoder$(EXESUFFIX): $(ENCODER_OBJS)
125 | $(LINK.o.cmdline)
126 |
127 | decoder$(EXESUFFIX): $(DECODER_OBJS)
128 | $(LINK.o.cmdline)
129 |
130 | signalcompare$(EXESUFFIX): $(SIGNALCMP_OBJS)
131 | $(LINK.o.cmdline)
132 |
133 | clean:
134 | $(RM) $(TARGET)* $(OBJS) $(ENCODER_OBJS) $(DECODER_OBJS) \
135 | $(SIGNALCMP_OBJS) $(TEST_OBJS) \
136 | encoder$(EXESUFFIX) decoder$(EXESUFFIX) signalcompare$(EXESUFFIX)
137 |
138 |
--------------------------------------------------------------------------------
/silk/interface/SKP_Silk_control.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_CONTROL_H
29 | #define SKP_SILK_CONTROL_H
30 |
31 | #include "SKP_Silk_typedef.h"
32 |
33 | #ifdef __cplusplus
34 | extern "C"
35 | {
36 | #endif
37 |
38 | /***********************************************/
39 | /* Structure for controlling encoder operation */
40 | /***********************************************/
41 | typedef struct {
42 | /* I: Input signal sampling rate in Hertz; 8000/12000/16000/24000 */
43 | SKP_int32 API_sampleRate;
44 |
45 | /* I: Maximum internal sampling rate in Hertz; 8000/12000/16000/24000 */
46 | SKP_int32 maxInternalSampleRate;
47 |
48 | /* I: Number of samples per packet; must be equivalent of 20, 40, 60, 80 or 100 ms */
49 | SKP_int packetSize;
50 |
51 | /* I: Bitrate during active speech in bits/second; internally limited */
52 | SKP_int32 bitRate;
53 |
54 | /* I: Uplink packet loss in percent (0-100) */
55 | SKP_int packetLossPercentage;
56 |
57 | /* I: Complexity mode; 0 is lowest; 1 is medium and 2 is highest complexity */
58 | SKP_int complexity;
59 |
60 | /* I: Flag to enable in-band Forward Error Correction (FEC); 0/1 */
61 | SKP_int useInBandFEC;
62 |
63 | /* I: Flag to enable discontinuous transmission (DTX); 0/1 */
64 | SKP_int useDTX;
65 | } SKP_SILK_SDK_EncControlStruct;
66 |
67 | /**************************************************************************/
68 | /* Structure for controlling decoder operation and reading decoder status */
69 | /**************************************************************************/
70 | typedef struct {
71 | /* I: Output signal sampling rate in Hertz; 8000/12000/16000/24000 */
72 | SKP_int32 API_sampleRate;
73 |
74 | /* O: Number of samples per frame */
75 | SKP_int frameSize;
76 |
77 | /* O: Frames per packet 1, 2, 3, 4, 5 */
78 | SKP_int framesPerPacket;
79 |
80 | /* O: Flag to indicate that the decoder has remaining payloads internally */
81 | SKP_int moreInternalDecoderFrames;
82 |
83 | /* O: Distance between main payload and redundant payload in packets */
84 | SKP_int inBandFECOffset;
85 | } SKP_SILK_SDK_DecControlStruct;
86 |
87 | #ifdef __cplusplus
88 | }
89 | #endif
90 |
91 | #endif
92 |
--------------------------------------------------------------------------------
/silk/interface/SKP_Silk_errors.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_ERRORS_H
29 | #define SKP_SILK_ERRORS_H
30 |
31 | #ifdef __cplusplus
32 | extern "C"
33 | {
34 | #endif
35 |
36 | /******************/
37 | /* Error messages */
38 | /******************/
39 | #define SKP_SILK_NO_ERROR 0
40 |
41 | /**************************/
42 | /* Encoder error messages */
43 | /**************************/
44 |
45 | /* Input length is not a multiplum of 10 ms, or length is longer than the packet length */
46 | #define SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES -1
47 |
48 | /* Sampling frequency not 8000, 12000, 16000 or 24000 Hertz */
49 | #define SKP_SILK_ENC_FS_NOT_SUPPORTED -2
50 |
51 | /* Packet size not 20, 40, 60, 80 or 100 ms */
52 | #define SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED -3
53 |
54 | /* Allocated payload buffer too short */
55 | #define SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT -4
56 |
57 | /* Loss rate not between 0 and 100 percent */
58 | #define SKP_SILK_ENC_INVALID_LOSS_RATE -5
59 |
60 | /* Complexity setting not valid, use 0, 1 or 2 */
61 | #define SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING -6
62 |
63 | /* Inband FEC setting not valid, use 0 or 1 */
64 | #define SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING -7
65 |
66 | /* DTX setting not valid, use 0 or 1 */
67 | #define SKP_SILK_ENC_INVALID_DTX_SETTING -8
68 |
69 | /* Internal encoder error */
70 | #define SKP_SILK_ENC_INTERNAL_ERROR -9
71 |
72 | /**************************/
73 | /* Decoder error messages */
74 | /**************************/
75 |
76 | /* Output sampling frequency lower than internal decoded sampling frequency */
77 | #define SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY -10
78 |
79 | /* Payload size exceeded the maximum allowed 1024 bytes */
80 | #define SKP_SILK_DEC_PAYLOAD_TOO_LARGE -11
81 |
82 | /* Payload has bit errors */
83 | #define SKP_SILK_DEC_PAYLOAD_ERROR -12
84 |
85 | #ifdef __cplusplus
86 | }
87 | #endif
88 |
89 | #endif
90 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_A2NLSF_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 | #if EMBEDDED_ARM>=6
32 |
33 | VARDEF y32, r3
34 | VARDEF pn1, r4
35 | VARDEF pn2, r5
36 | VARDEF lo, r6
37 | VARDEF hi, r8
38 | .globl SYM(SKP_Silk_A2NLSF_eval_poly)
39 | SYM(SKP_Silk_A2NLSF_eval_poly):
40 | stmdb sp!, {r4-r8, fp, ip, lr}
41 | add fp, sp, #28
42 | add r0, r0, r2, lsl #2
43 | ldr y32, [r0], #-4
44 | tst r2, #1
45 | beq LR(1, f)
46 | ldr pn1, [r0], #-4
47 | sub r2, r2, #1
48 | mov r1, r1, lsl #4
49 | L(0)
50 | smull lo, hi, y32, r1
51 | subs r2, r2, #1
52 | add y32, pn1, hi, lsl #16
53 | ldr pn1, [r0], #-4
54 | add y32, y32, lo, lsr #16
55 | bgt LR(0, b)
56 | smull lo, hi, y32, r1
57 | add y32, pn1, hi, lsl #16
58 | add r0, y32, lo, lsr #16
59 | ldmia sp!, {r4-r8, fp, ip, pc}
60 |
61 | L(1)/*EVEN:*/
62 | add r0, r0, #4
63 | ldmdb r0!, {pn1, pn2}
64 | sub r2, r2, #2
65 | mov r1, r1, lsl #4
66 | L(0)
67 | smull lo, hi, y32, r1
68 | subs r2, r2, #2
69 | add y32, pn2, hi, lsl #16
70 | add y32, y32, lo, lsr #16
71 | smull lo, hi, y32, r1
72 | add y32, pn1, hi, lsl #16
73 | ldmdb r0!, {pn1, pn2}
74 | add y32, y32, lo, lsr #16
75 | bgt LR(0, b)
76 | smull lo, hi, y32, r1
77 | add y32, pn2, hi, lsl #16
78 | add y32, y32, lo, lsr #16
79 | smull lo, hi, y32, r1
80 | add y32, pn1, hi, lsl #16
81 | add r0, y32, lo, lsr #16
82 | ldmia sp!, {r4-r8, fp, ip, pc}
83 | END
84 | #endif
85 | #endif
86 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_LBRR_reset.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main.h"
29 |
30 | /* Resets LBRR buffer, used if packet size changes */
31 | void SKP_Silk_LBRR_reset(
32 | SKP_Silk_encoder_state *psEncC /* I/O state */
33 | )
34 | {
35 | SKP_int i;
36 |
37 | for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
38 | psEncC->LBRR_buffer[ i ].usage = SKP_SILK_NO_LBRR;
39 | }
40 | }
41 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_LTP_analysis_filter_FIX.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main_FIX.h"
29 |
30 | void SKP_Silk_LTP_analysis_filter_FIX(
31 | SKP_int16 *LTP_res, /* O: LTP residual signal of length NB_SUBFR * ( pre_length + subfr_length ) */
32 | const SKP_int16 *x, /* I: Pointer to input signal with at least max( pitchL ) preceeding samples */
33 | const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ],/* I: LTP_ORDER LTP coefficients for each NB_SUBFR subframe */
34 | const SKP_int pitchL[ NB_SUBFR ], /* I: Pitch lag, one for each subframe */
35 | const SKP_int32 invGains_Q16[ NB_SUBFR ], /* I: Inverse quantization gains, one for each subframe */
36 | const SKP_int subfr_length, /* I: Length of each subframe */
37 | const SKP_int pre_length /* I: Length of the preceeding samples starting at &x[0] for each subframe */
38 | )
39 | {
40 | const SKP_int16 *x_ptr, *x_lag_ptr;
41 | SKP_int16 Btmp_Q14[ LTP_ORDER ];
42 | SKP_int16 *LTP_res_ptr;
43 | SKP_int k, i, j;
44 | SKP_int32 LTP_est;
45 |
46 | x_ptr = x;
47 | LTP_res_ptr = LTP_res;
48 | for( k = 0; k < NB_SUBFR; k++ ) {
49 |
50 | x_lag_ptr = x_ptr - pitchL[ k ];
51 | for( i = 0; i < LTP_ORDER; i++ ) {
52 | Btmp_Q14[ i ] = LTPCoef_Q14[ k * LTP_ORDER + i ];
53 | }
54 |
55 | /* LTP analysis FIR filter */
56 | for( i = 0; i < subfr_length + pre_length; i++ ) {
57 | LTP_res_ptr[ i ] = x_ptr[ i ];
58 |
59 | /* Long-term prediction */
60 | LTP_est = SKP_SMULBB( x_lag_ptr[ LTP_ORDER / 2 ], Btmp_Q14[ 0 ] );
61 | for( j = 1; j < LTP_ORDER; j++ ) {
62 | LTP_est = SKP_SMLABB_ovflw( LTP_est, x_lag_ptr[ LTP_ORDER / 2 - j ], Btmp_Q14[ j ] );
63 | }
64 | LTP_est = SKP_RSHIFT_ROUND( LTP_est, 14 ); // round and -> Q0
65 |
66 | /* Subtract long-term prediction */
67 | LTP_res_ptr[ i ] = ( SKP_int16 )SKP_SAT16( ( SKP_int32 )x_ptr[ i ] - LTP_est );
68 |
69 | /* Scale residual */
70 | LTP_res_ptr[ i ] = SKP_SMULWB( invGains_Q16[ k ], LTP_res_ptr[ i ] );
71 |
72 | x_lag_ptr++;
73 | }
74 |
75 | /* Update pointers */
76 | LTP_res_ptr += subfr_length + pre_length;
77 | x_ptr += subfr_length;
78 | }
79 | }
80 |
81 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_LTP_scale_ctrl_FIX.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main_FIX.h"
29 |
30 | #define NB_THRESHOLDS 11
31 |
32 | /* Table containing trained thresholds for LTP scaling */
33 | static const SKP_int16 LTPScaleThresholds_Q15[ NB_THRESHOLDS ] =
34 | {
35 | 31129, 26214, 16384, 13107, 9830, 6554,
36 | 4915, 3276, 2621, 2458, 0
37 | };
38 |
39 | void SKP_Silk_LTP_scale_ctrl_FIX(
40 | SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state FIX */
41 | SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O encoder control FIX */
42 | )
43 | {
44 | SKP_int round_loss, frames_per_packet;
45 | SKP_int g_out_Q5, g_limit_Q15, thrld1_Q15, thrld2_Q15;
46 |
47 | /* 1st order high-pass filter */
48 | psEnc->HPLTPredCodGain_Q7 = SKP_max_int( psEncCtrl->LTPredCodGain_Q7 - psEnc->prevLTPredCodGain_Q7, 0 )
49 | + SKP_RSHIFT_ROUND( psEnc->HPLTPredCodGain_Q7, 1 );
50 |
51 | psEnc->prevLTPredCodGain_Q7 = psEncCtrl->LTPredCodGain_Q7;
52 |
53 | /* combine input and filtered input */
54 | g_out_Q5 = SKP_RSHIFT_ROUND( SKP_RSHIFT( psEncCtrl->LTPredCodGain_Q7, 1 ) + SKP_RSHIFT( psEnc->HPLTPredCodGain_Q7, 1 ), 3 );
55 | g_limit_Q15 = SKP_Silk_sigm_Q15( g_out_Q5 - ( 3 << 5 ) );
56 |
57 | /* Default is minimum scaling */
58 | psEncCtrl->sCmn.LTP_scaleIndex = 0;
59 |
60 | /* Round the loss measure to whole pct */
61 | round_loss = ( SKP_int )psEnc->sCmn.PacketLoss_perc;
62 |
63 | /* Only scale if first frame in packet 0% */
64 | if( psEnc->sCmn.nFramesInPayloadBuf == 0 ) {
65 |
66 | frames_per_packet = SKP_DIV32_16( psEnc->sCmn.PacketSize_ms, FRAME_LENGTH_MS );
67 |
68 | round_loss += frames_per_packet - 1;
69 | thrld1_Q15 = LTPScaleThresholds_Q15[ SKP_min_int( round_loss, NB_THRESHOLDS - 1 ) ];
70 | thrld2_Q15 = LTPScaleThresholds_Q15[ SKP_min_int( round_loss + 1, NB_THRESHOLDS - 1 ) ];
71 |
72 | if( g_limit_Q15 > thrld1_Q15 ) {
73 | /* Maximum scaling */
74 | psEncCtrl->sCmn.LTP_scaleIndex = 2;
75 | } else if( g_limit_Q15 > thrld2_Q15 ) {
76 | /* Medium scaling */
77 | psEncCtrl->sCmn.LTP_scaleIndex = 1;
78 | }
79 | }
80 | psEncCtrl->LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ psEncCtrl->sCmn.LTP_scaleIndex ];
81 | }
82 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_NLSF2A_stable.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main.h"
29 |
30 | /* Convert NLSF parameters to stable AR prediction filter coefficients */
31 | void SKP_Silk_NLSF2A_stable(
32 | SKP_int16 pAR_Q12[ MAX_LPC_ORDER ], /* O Stabilized AR coefs [LPC_order] */
33 | const SKP_int pNLSF[ MAX_LPC_ORDER ], /* I NLSF vector [LPC_order] */
34 | const SKP_int LPC_order /* I LPC/LSF order */
35 | )
36 | {
37 | SKP_int i;
38 | SKP_int32 invGain_Q30;
39 |
40 | SKP_Silk_NLSF2A( pAR_Q12, pNLSF, LPC_order );
41 |
42 | /* Ensure stable LPCs */
43 | for( i = 0; i < MAX_LPC_STABILIZE_ITERATIONS; i++ ) {
44 | if( SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, pAR_Q12, LPC_order ) == 1 ) {
45 | SKP_Silk_bwexpander( pAR_Q12, LPC_order, 65536 - SKP_SMULBB( 10 + i, i ) ); /* 10_Q16 = 0.00015 */
46 | } else {
47 | break;
48 | }
49 | }
50 |
51 | /* Reached the last iteration */
52 | if( i == MAX_LPC_STABILIZE_ITERATIONS ) {
53 | SKP_assert( 0 );
54 | for( i = 0; i < LPC_order; i++ ) {
55 | pAR_Q12[ i ] = 0;
56 | }
57 | }
58 | }
59 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_NLSF_VQ_rate_distortion_FIX.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main_FIX.h"
29 |
30 | /* Rate-Distortion calculations for multiple input data vectors */
31 | void SKP_Silk_NLSF_VQ_rate_distortion_FIX(
32 | SKP_int32 *pRD_Q20, /* O Rate-distortion values [psNLSF_CBS->nVectors*N] */
33 | const SKP_Silk_NLSF_CBS *psNLSF_CBS, /* I NLSF codebook stage struct */
34 | const SKP_int *in_Q15, /* I Input vectors to be quantized */
35 | const SKP_int *w_Q6, /* I Weight vector */
36 | const SKP_int32 *rate_acc_Q5, /* I Accumulated rates from previous stage */
37 | const SKP_int mu_Q15, /* I Weight between weighted error and rate */
38 | const SKP_int N, /* I Number of input vectors to be quantized */
39 | const SKP_int LPC_order /* I LPC order */
40 | )
41 | {
42 | SKP_int i, n;
43 | SKP_int32 *pRD_vec_Q20;
44 |
45 | /* Compute weighted quantization errors for all input vectors over one codebook stage */
46 | SKP_Silk_NLSF_VQ_sum_error_FIX( pRD_Q20, in_Q15, w_Q6, psNLSF_CBS->CB_NLSF_Q15,
47 | N, psNLSF_CBS->nVectors, LPC_order );
48 |
49 | /* Loop over input vectors */
50 | pRD_vec_Q20 = pRD_Q20;
51 | for( n = 0; n < N; n++ ) {
52 | /* Add rate cost to error for each codebook vector */
53 | for( i = 0; i < psNLSF_CBS->nVectors; i++ ) {
54 | SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] >= 0 );
55 | SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] <= SKP_int16_MAX );
56 | pRD_vec_Q20[ i ] = SKP_SMLABB( pRD_vec_Q20[ i ], rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ], mu_Q15 );
57 | SKP_assert( pRD_vec_Q20[ i ] >= 0 );
58 | }
59 | pRD_vec_Q20 += psNLSF_CBS->nVectors;
60 | }
61 | }
62 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_NLSF_VQ_weights_laroia.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_SigProc_FIX.h"
29 |
30 | /*
31 | R. Laroia, N. Phamdo and N. Farvardin, "Robust and Efficient Quantization of Speech LSP
32 | Parameters Using Structured Vector Quantization", Proc. IEEE Int. Conf. Acoust., Speech,
33 | Signal Processing, pp. 641-644, 1991.
34 | */
35 |
36 | #define Q_OUT 6
37 | #define MIN_NDELTA 3
38 |
39 | /* Laroia low complexity NLSF weights */
40 | void SKP_Silk_NLSF_VQ_weights_laroia(
41 | SKP_int *pNLSFW_Q6, /* O: Pointer to input vector weights [D x 1] */
42 | const SKP_int *pNLSF_Q15, /* I: Pointer to input vector [D x 1] */
43 | const SKP_int D /* I: Input vector dimension (even) */
44 | )
45 | {
46 | SKP_int k;
47 | SKP_int32 tmp1_int, tmp2_int;
48 |
49 | /* Check that we are guaranteed to end up within the required range */
50 | SKP_assert( D > 0 );
51 | SKP_assert( ( D & 1 ) == 0 );
52 |
53 | /* First value */
54 | tmp1_int = SKP_max_int( pNLSF_Q15[ 0 ], MIN_NDELTA );
55 | tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
56 | tmp2_int = SKP_max_int( pNLSF_Q15[ 1 ] - pNLSF_Q15[ 0 ], MIN_NDELTA );
57 | tmp2_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp2_int );
58 | pNLSFW_Q6[ 0 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
59 | SKP_assert( pNLSFW_Q6[ 0 ] > 0 );
60 |
61 | /* Main loop */
62 | for( k = 1; k < D - 1; k += 2 ) {
63 | tmp1_int = SKP_max_int( pNLSF_Q15[ k + 1 ] - pNLSF_Q15[ k ], MIN_NDELTA );
64 | tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
65 | pNLSFW_Q6[ k ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
66 | SKP_assert( pNLSFW_Q6[ k ] > 0 );
67 |
68 | tmp2_int = SKP_max_int( pNLSF_Q15[ k + 2 ] - pNLSF_Q15[ k + 1 ], MIN_NDELTA );
69 | tmp2_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp2_int );
70 | pNLSFW_Q6[ k + 1 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
71 | SKP_assert( pNLSFW_Q6[ k + 1 ] > 0 );
72 | }
73 |
74 | /* Last value */
75 | tmp1_int = SKP_max_int( ( 1 << 15 ) - pNLSF_Q15[ D - 1 ], MIN_NDELTA );
76 | tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
77 | pNLSFW_Q6[ D - 1 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
78 | SKP_assert( pNLSFW_Q6[ D - 1 ] > 0 );
79 | }
80 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_allpass_int_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM >= 5
33 | VARDEF A, r2
34 | VARDEF len, r4
35 | VARDEF S00, r5
36 | VARDEF ink1, r6
37 | VARDEF ink2, r8
38 | VARDEF Y2, sb
39 | VARDEF outk1, sl
40 | VARDEF outk2, ip
41 |
42 | .globl SYM(SKP_Silk_allpass_int)
43 | SYM(SKP_Silk_allpass_int):
44 | stmdb sp!, {r4-r10, fp, ip, lr}
45 | add fp, sp, #36
46 | .set len_offset, 40
47 | ldr len, [sp, #len_offset]
48 | ldr S00, [r1]
49 | movs A, A, lsl #17
50 | sub len, len, #1
51 | ldmia r0!, {ink1,ink2}
52 | bge LR(1, f)/*AgeZero*/
53 | L(0)
54 | sub Y2, ink1, S00
55 | smlawt outk1, Y2, A, ink1
56 | add S00, Y2, outk1
57 | subs len, len, #2
58 | sub Y2, ink2, S00
59 | smlawt outk2, Y2, A, ink2
60 | #ifdef _WINRT
61 | ble LR(3, f)
62 | ldmia r0!, {ink1,ink2}
63 | L(3)
64 | #else
65 | ldmgtia r0!, {ink1,ink2}
66 | #endif
67 | add S00, Y2, outk2
68 | stmia r3!, {outk1, outk2}
69 | bgt LR(0, b)
70 | #ifdef _WINRT
71 | bne LR(2, f)
72 | ldr ink1, [r0], #4
73 | sub Y2, ink1, S00
74 | smlawt outk1, Y2, A, ink1
75 | add S00, Y2, outk1
76 | str outk1, [r3]
77 | L(2)
78 | #else
79 | ldreq ink1, [r0], #4
80 | subeq Y2, ink1, S00
81 | smlawteq outk1, Y2, A, ink1
82 | addeq S00, Y2, outk1
83 | streq outk1, [r3]
84 | #endif
85 | str S00, [r1]
86 | ldmia sp!, {r4-r10, fp, ip, pc}
87 |
88 | L(1)/*AgeZero:*/
89 | sub Y2, ink1, S00
90 | smlawt outk1, Y2, A, S00
91 | add S00, Y2, outk1
92 | subs len, len, #2
93 | sub Y2, ink2, S00
94 | smlawt outk2, Y2, A, S00
95 | #ifdef _WINRT
96 | ble LR(3, f)
97 | ldmia r0!, {ink1,ink2}
98 | L(3)
99 | #else
100 | ldmgtia r0!, {ink1,ink2}
101 | #endif
102 | add S00, Y2, outk2
103 | stmia r3!, {outk1, outk2}
104 | bgt LR(1, b)
105 | #ifdef _WINRT
106 | bne LR(2, f)
107 | ldr ink1, [r0], #4
108 | sub Y2, ink1, S00
109 | smlawt outk1, Y2, A, S00
110 | add S00, Y2, outk1
111 | str outk1, [r3]
112 | L(2)
113 | #else
114 | ldreq ink1, [r0], #4
115 | subeq Y2, ink1, S00
116 | smlawteq outk1, Y2, A, S00
117 | addeq S00, Y2, outk1
118 | streq outk1, [r3]
119 | #endif
120 | str S00, [r1]
121 | ldmia sp!, {r4-r10, fp, ip, pc}
122 | END
123 | #endif
124 | #endif
125 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_array_maxabs.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_int16_array_maxabs.c *
30 | * *
31 | * Function that returns the maximum absolut value of *
32 | * the input vector *
33 | * *
34 | * Copyright 2006 (c), Skype Limited *
35 | * Date: 060221 *
36 | * */
37 | #include "SKP_Silk_SigProc_FIX.h"
38 |
39 | /* Function that returns the maximum absolut value of the input vector */
40 | #if (EMBEDDED_ARM<4)
41 | SKP_int16 SKP_Silk_int16_array_maxabs( /* O Maximum absolute value, max: 2^15-1 */
42 | const SKP_int16 *vec, /* I Input vector [len] */
43 | const SKP_int32 len /* I Length of input vector */
44 | )
45 | {
46 | SKP_int32 max = 0, i, lvl = 0, ind;
47 | if( len == 0 ) return 0;
48 |
49 | ind = len - 1;
50 | max = SKP_SMULBB( vec[ ind ], vec[ ind ] );
51 | for( i = len - 2; i >= 0; i-- ) {
52 | lvl = SKP_SMULBB( vec[ i ], vec[ i ] );
53 | if( lvl > max ) {
54 | max = lvl;
55 | ind = i;
56 | }
57 | }
58 |
59 | /* Do not return 32768, as it will not fit in an int16 so may lead to problems later on */
60 | if( max >= 1073676289 ) { // (2^15-1)^2 = 1073676289
61 | return( SKP_int16_MAX );
62 | } else {
63 | if( vec[ ind ] < 0 ) {
64 | return( -vec[ ind ] );
65 | } else {
66 | return( vec[ ind ] );
67 | }
68 | }
69 | }
70 | #endif
71 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_biquad.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_biquad.c *
30 | * *
31 | * Second order ARMA filter *
32 | * Can handle slowly varying filter coefficients *
33 | * *
34 | * Copyright 2006 (c), Skype Limited *
35 | * Date: 060221 *
36 | * */
37 | #include "SKP_Silk_SigProc_FIX.h"
38 |
39 | /* Second order ARMA filter */
40 | /* Can handle slowly varying filter coefficients */
41 | void SKP_Silk_biquad(
42 | const SKP_int16 *in, /* I: input signal */
43 | const SKP_int16 *B, /* I: MA coefficients, Q13 [3] */
44 | const SKP_int16 *A, /* I: AR coefficients, Q13 [2] */
45 | SKP_int32 *S, /* I/O: state vector [2] */
46 | SKP_int16 *out, /* O: output signal */
47 | const SKP_int32 len /* I: signal length */
48 | )
49 | {
50 | SKP_int k, in16;
51 | SKP_int32 A0_neg, A1_neg, S0, S1, out32, tmp32;
52 |
53 | S0 = S[ 0 ];
54 | S1 = S[ 1 ];
55 | A0_neg = -A[ 0 ];
56 | A1_neg = -A[ 1 ];
57 | for( k = 0; k < len; k++ ) {
58 | /* S[ 0 ], S[ 1 ]: Q13 */
59 | in16 = in[ k ];
60 | out32 = SKP_SMLABB( S0, in16, B[ 0 ] );
61 |
62 | S0 = SKP_SMLABB( S1, in16, B[ 1 ] );
63 | S0 += SKP_LSHIFT( SKP_SMULWB( out32, A0_neg ), 3 );
64 |
65 | S1 = SKP_LSHIFT( SKP_SMULWB( out32, A1_neg ), 3 );
66 | S1 = SKP_SMLABB( S1, in16, B[ 2 ] );
67 | tmp32 = SKP_RSHIFT_ROUND( out32, 13 ) + 1;
68 | out[ k ] = (SKP_int16)SKP_SAT16( tmp32 );
69 | }
70 | S[ 0 ] = S0;
71 | S[ 1 ] = S1;
72 | }
73 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_biquad_alt.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_biquad_alt.c *
30 | * *
31 | * Second order ARMA filter *
32 | * Can handle slowly varying filter coefficients *
33 | * */
34 | #include "SKP_Silk_SigProc_FIX.h"
35 |
36 |
37 | /* Second order ARMA filter, alternative implementation */
38 | void SKP_Silk_biquad_alt(
39 | const SKP_int16 *in, /* I: Input signal */
40 | const SKP_int32 *B_Q28, /* I: MA coefficients [3] */
41 | const SKP_int32 *A_Q28, /* I: AR coefficients [2] */
42 | SKP_int32 *S, /* I/O: State vector [2] */
43 | SKP_int16 *out, /* O: Output signal */
44 | const SKP_int32 len /* I: Signal length (must be even) */
45 | )
46 | {
47 | /* DIRECT FORM II TRANSPOSED (uses 2 element state vector) */
48 | SKP_int k;
49 | SKP_int32 inval, A0_U_Q28, A0_L_Q28, A1_U_Q28, A1_L_Q28, out32_Q14;
50 |
51 | /* Negate A_Q28 values and split in two parts */
52 | A0_L_Q28 = ( -A_Q28[ 0 ] ) & 0x00003FFF; /* lower part */
53 | A0_U_Q28 = SKP_RSHIFT( -A_Q28[ 0 ], 14 ); /* upper part */
54 | A1_L_Q28 = ( -A_Q28[ 1 ] ) & 0x00003FFF; /* lower part */
55 | A1_U_Q28 = SKP_RSHIFT( -A_Q28[ 1 ], 14 ); /* upper part */
56 |
57 | for( k = 0; k < len; k++ ) {
58 | /* S[ 0 ], S[ 1 ]: Q12 */
59 | inval = in[ k ];
60 | out32_Q14 = SKP_LSHIFT( SKP_SMLAWB( S[ 0 ], B_Q28[ 0 ], inval ), 2 );
61 |
62 | S[ 0 ] = S[1] + SKP_RSHIFT_ROUND( SKP_SMULWB( out32_Q14, A0_L_Q28 ), 14 );
63 | S[ 0 ] = SKP_SMLAWB( S[ 0 ], out32_Q14, A0_U_Q28 );
64 | S[ 0 ] = SKP_SMLAWB( S[ 0 ], B_Q28[ 1 ], inval);
65 |
66 | S[ 1 ] = SKP_RSHIFT_ROUND( SKP_SMULWB( out32_Q14, A1_L_Q28 ), 14 );
67 | S[ 1 ] = SKP_SMLAWB( S[ 1 ], out32_Q14, A1_U_Q28 );
68 | S[ 1 ] = SKP_SMLAWB( S[ 1 ], B_Q28[ 2 ], inval );
69 |
70 | /* Scale back to Q0 and saturate */
71 | out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT( out32_Q14 + (1<<14) - 1, 14 ) );
72 | }
73 | }
74 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_bwexpander.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_SigProc_FIX.h"
29 |
30 | /* Chirp (bandwidth expand) LP AR filter */
31 | void SKP_Silk_bwexpander(
32 | SKP_int16 *ar, /* I/O AR filter to be expanded (without leading 1) */
33 | const SKP_int d, /* I Length of ar */
34 | SKP_int32 chirp_Q16 /* I Chirp factor (typically in the range 0 to 1) */
35 | )
36 | {
37 | SKP_int i;
38 | SKP_int32 chirp_minus_one_Q16;
39 |
40 | chirp_minus_one_Q16 = chirp_Q16 - 65536;
41 |
42 | /* NB: Dont use SKP_SMULWB, instead of SKP_RSHIFT_ROUND( SKP_MUL() , 16 ), below. */
43 | /* Bias in SKP_SMULWB can lead to unstable filters */
44 | for( i = 0; i < d - 1; i++ ) {
45 | ar[ i ] = (SKP_int16)SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, ar[ i ] ), 16 );
46 | chirp_Q16 += SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, chirp_minus_one_Q16 ), 16 );
47 | }
48 | ar[ d - 1 ] = (SKP_int16)SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, ar[ d - 1 ] ), 16 );
49 | }
50 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_bwexpander_32.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_SigProc_FIX.h"
29 |
30 | /* Chirp (bandwidth expand) LP AR filter */
31 | void SKP_Silk_bwexpander_32(
32 | SKP_int32 *ar, /* I/O AR filter to be expanded (without leading 1) */
33 | const SKP_int d, /* I Length of ar */
34 | SKP_int32 chirp_Q16 /* I Chirp factor in Q16 */
35 | )
36 | {
37 | SKP_int i;
38 | SKP_int32 tmp_chirp_Q16;
39 |
40 | tmp_chirp_Q16 = chirp_Q16;
41 | for( i = 0; i < d - 1; i++ ) {
42 | ar[ i ] = SKP_SMULWW( ar[ i ], tmp_chirp_Q16 );
43 | tmp_chirp_Q16 = SKP_SMULWW( chirp_Q16, tmp_chirp_Q16 );
44 | }
45 | ar[ d - 1 ] = SKP_SMULWW( ar[ d - 1 ], tmp_chirp_Q16 );
46 | }
47 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_clz_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 | #if (EMBEDDED_ARM>0) && (EMBEDDED_ARM<5)
32 |
33 | .globl SYM(SKP_Silk_CLZ16)
34 | .globl SYM(SKP_Silk_CLZ32)
35 |
36 | SYM(SKP_Silk_CLZ16):
37 | str lr, [sp, #-4]!
38 |
39 | mov r2, r0
40 | mov r0, #0
41 | ands r1, r2, #0xF000
42 | movne r1, r2, asr #12
43 | bne 0f
44 | add r0, r0, #4
45 | ands r1, r2, #0xF00
46 | movne r1, r2, asr #8
47 | bne 0f
48 | add r0, r0, #4
49 | ands r1, r2, #0xF0
50 | movne r1, r2, asr #4
51 | bne 0f
52 | add r0, r0, #4
53 | mov r1, r2
54 | 0:
55 | ands r2, r1, #0x8
56 | bne 1f
57 | add r0, r0, #1
58 | ands r2, r1, #0x4
59 | bne 1f
60 | add r0, r0, #1
61 | ands r2, r1, #0x2
62 | bne 1f
63 | add r0, r0, #1
64 | ands r2, r1, #0x1
65 | bne 1f
66 | add r0, r0, #1
67 | 1:
68 | ldr pc, [sp], #4
69 |
70 | SYM(SKP_Silk_CLZ32):
71 |
72 | str lr, [sp, #-4]!
73 |
74 | mov r2, r0
75 | mov r0, #0
76 | ands r1, r2, #0xF0000000
77 | movne r1, r2, asr #28
78 | bne 0f
79 | add r0, r0, #4
80 | ands r1, r2, #0xF000000
81 | movne r1, r2, asr #24
82 | bne 0f
83 | add r0, r0, #4
84 | ands r1, r2, #0xF00000
85 | movne r1, r2, asr #20
86 | bne 0f
87 | add r0, r0, #4
88 | ands r1, r2, #0xF0000
89 | movne r1, r2, asr #16
90 | bne 0f
91 | add r0, r0, #4
92 | ands r1, r2, #0xF000
93 | movne r1, r2, asr #12
94 | bne 0f
95 | add r0, r0, #4
96 | ands r1, r2, #0xF00
97 | movne r1, r2, asr #8
98 | bne 0f
99 | add r0, r0, #4
100 | ands r1, r2, #0xF0
101 | movne r1, r2, asr #4
102 | bne 0f
103 | add r0, r0, #4
104 | mov r1, r2
105 | 0:
106 | ands r2, r1, #0x8
107 | bne 1f
108 | add r0, r0, #1
109 | ands r2, r1, #0x4
110 | bne 1f
111 | add r0, r0, #1
112 | ands r2, r1, #0x2
113 | bne 1f
114 | add r0, r0, #1
115 | ands r2, r1, #0x1
116 | bne 1f
117 | add r0, r0, #1
118 | 1:
119 | ldr pc, [sp], #4
120 |
121 | #endif
122 | #endif
123 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_common_pitch_est_defines.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SIGPROC_COMMON_PITCH_EST_DEFINES_H
29 | #define SIGPROC_COMMON_PITCH_EST_DEFINES_H
30 |
31 | #include "SKP_Silk_SigProc_FIX.h"
32 |
33 | /************************************************************/
34 | /* Definitions For Fix pitch estimator */
35 | /************************************************************/
36 |
37 | #define PITCH_EST_MAX_FS_KHZ 24 /* Maximum sampling frequency used */
38 |
39 | #define PITCH_EST_FRAME_LENGTH_MS 40 /* 40 ms */
40 |
41 | #define PITCH_EST_MAX_FRAME_LENGTH (PITCH_EST_FRAME_LENGTH_MS * PITCH_EST_MAX_FS_KHZ)
42 | #define PITCH_EST_MAX_FRAME_LENGTH_ST_1 (PITCH_EST_MAX_FRAME_LENGTH >> 2)
43 | #define PITCH_EST_MAX_FRAME_LENGTH_ST_2 (PITCH_EST_MAX_FRAME_LENGTH >> 1)
44 | #define PITCH_EST_MAX_SF_FRAME_LENGTH (PITCH_EST_SUB_FRAME * PITCH_EST_MAX_FS_KHZ)
45 |
46 | #define PITCH_EST_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */
47 | #define PITCH_EST_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */
48 | #define PITCH_EST_MAX_LAG (PITCH_EST_MAX_LAG_MS * PITCH_EST_MAX_FS_KHZ)
49 | #define PITCH_EST_MIN_LAG (PITCH_EST_MIN_LAG_MS * PITCH_EST_MAX_FS_KHZ)
50 |
51 | #define PITCH_EST_NB_SUBFR 4
52 |
53 | #define PITCH_EST_D_SRCH_LENGTH 24
54 |
55 | #define PITCH_EST_MAX_DECIMATE_STATE_LENGTH 7
56 |
57 | #define PITCH_EST_NB_STAGE3_LAGS 5
58 |
59 | #define PITCH_EST_NB_CBKS_STAGE2 3
60 | #define PITCH_EST_NB_CBKS_STAGE2_EXT 11
61 |
62 | #define PITCH_EST_CB_mn2 1
63 | #define PITCH_EST_CB_mx2 2
64 |
65 | #define PITCH_EST_NB_CBKS_STAGE3_MAX 34
66 | #define PITCH_EST_NB_CBKS_STAGE3_MID 24
67 | #define PITCH_EST_NB_CBKS_STAGE3_MIN 16
68 |
69 | extern const SKP_int16 SKP_Silk_CB_lags_stage2[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE2_EXT];
70 | extern const SKP_int16 SKP_Silk_CB_lags_stage3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX];
71 | extern const SKP_int16 SKP_Silk_Lag_range_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ] [ PITCH_EST_NB_SUBFR ][ 2 ];
72 | extern const SKP_int16 SKP_Silk_cbk_sizes_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ];
73 | extern const SKP_int16 SKP_Silk_cbk_offsets_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ];
74 |
75 | #endif
76 |
77 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_create_init_destroy.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main.h"
29 |
30 |
31 | /************************/
32 | /* Init Decoder State */
33 | /************************/
34 | SKP_int SKP_Silk_init_decoder(
35 | SKP_Silk_decoder_state *psDec /* I/O Decoder state pointer */
36 | )
37 | {
38 | SKP_memset( psDec, 0, sizeof( SKP_Silk_decoder_state ) );
39 | /* Set sampling rate to 24 kHz, and init non-zero values */
40 | SKP_Silk_decoder_set_fs( psDec, 24 );
41 |
42 | /* Used to deactivate e.g. LSF interpolation and fluctuation reduction */
43 | psDec->first_frame_after_reset = 1;
44 | psDec->prev_inv_gain_Q16 = 65536;
45 |
46 | /* Reset CNG state */
47 | SKP_Silk_CNG_Reset( psDec );
48 |
49 | SKP_Silk_PLC_Reset( psDec );
50 |
51 | return(0);
52 | }
53 |
54 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_decode_pitch.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /***********************************************************
29 | * Pitch analyser function
30 | ********************************************************** */
31 | #include "SKP_Silk_SigProc_FIX.h"
32 | #include "SKP_Silk_common_pitch_est_defines.h"
33 |
34 | void SKP_Silk_decode_pitch(
35 | SKP_int lagIndex, /* I */
36 | SKP_int contourIndex, /* O */
37 | SKP_int pitch_lags[], /* O 4 pitch values */
38 | SKP_int Fs_kHz /* I sampling frequency (kHz) */
39 | )
40 | {
41 | SKP_int lag, i, min_lag;
42 |
43 | min_lag = SKP_SMULBB( PITCH_EST_MIN_LAG_MS, Fs_kHz );
44 |
45 | /* Only for 24 / 16 kHz version for now */
46 | lag = min_lag + lagIndex;
47 | if( Fs_kHz == 8 ) {
48 | /* Only a small codebook for 8 khz */
49 | for( i = 0; i < PITCH_EST_NB_SUBFR; i++ ) {
50 | pitch_lags[ i ] = lag + SKP_Silk_CB_lags_stage2[ i ][ contourIndex ];
51 | }
52 | } else {
53 | for( i = 0; i < PITCH_EST_NB_SUBFR; i++ ) {
54 | pitch_lags[ i ] = lag + SKP_Silk_CB_lags_stage3[ i ][ contourIndex ];
55 | }
56 | }
57 | }
58 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_decoder_set_fs.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main.h"
29 |
30 | /* Set decoder sampling rate */
31 | void SKP_Silk_decoder_set_fs(
32 | SKP_Silk_decoder_state *psDec, /* I/O Decoder state pointer */
33 | SKP_int fs_kHz /* I Sampling frequency (kHz) */
34 | )
35 | {
36 | if( psDec->fs_kHz != fs_kHz ) {
37 | psDec->fs_kHz = fs_kHz;
38 | psDec->frame_length = SKP_SMULBB( FRAME_LENGTH_MS, fs_kHz );
39 | psDec->subfr_length = SKP_SMULBB( FRAME_LENGTH_MS / NB_SUBFR, fs_kHz );
40 | if( psDec->fs_kHz == 8 ) {
41 | psDec->LPC_order = MIN_LPC_ORDER;
42 | psDec->psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_10;
43 | psDec->psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_10;
44 | } else {
45 | psDec->LPC_order = MAX_LPC_ORDER;
46 | psDec->psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_16;
47 | psDec->psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_16;
48 | }
49 | /* Reset part of the decoder state */
50 | SKP_memset( psDec->sLPC_Q14, 0, MAX_LPC_ORDER * sizeof( SKP_int32 ) );
51 | SKP_memset( psDec->outBuf, 0, MAX_FRAME_LENGTH * sizeof( SKP_int16 ) );
52 | SKP_memset( psDec->prevNLSF_Q15, 0, MAX_LPC_ORDER * sizeof( SKP_int ) );
53 |
54 | psDec->lagPrev = 100;
55 | psDec->LastGainIndex = 1;
56 | psDec->prev_sigtype = 0;
57 | psDec->first_frame_after_reset = 1;
58 |
59 | if( fs_kHz == 24 ) {
60 | psDec->HP_A = SKP_Silk_Dec_A_HP_24;
61 | psDec->HP_B = SKP_Silk_Dec_B_HP_24;
62 | } else if( fs_kHz == 16 ) {
63 | psDec->HP_A = SKP_Silk_Dec_A_HP_16;
64 | psDec->HP_B = SKP_Silk_Dec_B_HP_16;
65 | } else if( fs_kHz == 12 ) {
66 | psDec->HP_A = SKP_Silk_Dec_A_HP_12;
67 | psDec->HP_B = SKP_Silk_Dec_B_HP_12;
68 | } else if( fs_kHz == 8 ) {
69 | psDec->HP_A = SKP_Silk_Dec_A_HP_8;
70 | psDec->HP_B = SKP_Silk_Dec_B_HP_8;
71 | } else {
72 | /* unsupported sampling rate */
73 | SKP_assert( 0 );
74 | }
75 | }
76 |
77 | /* Check that settings are valid */
78 | SKP_assert( psDec->frame_length > 0 && psDec->frame_length <= MAX_FRAME_LENGTH );
79 | }
80 |
81 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_detect_SWB_input.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /*
29 | * Detect SWB input by measuring energy above 8 kHz.
30 | */
31 |
32 | #include "SKP_Silk_main.h"
33 |
34 | void SKP_Silk_detect_SWB_input(
35 | SKP_Silk_detect_SWB_state *psSWBdetect, /* (I/O) encoder state */
36 | const SKP_int16 samplesIn[], /* (I) input to encoder */
37 | SKP_int nSamplesIn /* (I) length of input */
38 | )
39 | {
40 | SKP_int HP_8_kHz_len, i, shift;
41 | SKP_int16 in_HP_8_kHz[ MAX_FRAME_LENGTH ];
42 | SKP_int32 energy_32;
43 |
44 | /* High pass filter with cutoff at 8 khz */
45 | HP_8_kHz_len = SKP_min_int( nSamplesIn, MAX_FRAME_LENGTH );
46 | HP_8_kHz_len = SKP_max_int( HP_8_kHz_len, 0 );
47 |
48 | /* Cutoff around 9 khz */
49 | /* A = conv(conv([8192,14613, 6868], [8192,12883, 7337]), [8192,11586, 7911]); */
50 | /* B = conv(conv([575, -948, 575], [575, -221, 575]), [575, 104, 575]); */
51 | SKP_Silk_biquad( samplesIn, SKP_Silk_SWB_detect_B_HP_Q13[ 0 ], SKP_Silk_SWB_detect_A_HP_Q13[ 0 ],
52 | psSWBdetect->S_HP_8_kHz[ 0 ], in_HP_8_kHz, HP_8_kHz_len );
53 | for( i = 1; i < NB_SOS; i++ ) {
54 | SKP_Silk_biquad( in_HP_8_kHz, SKP_Silk_SWB_detect_B_HP_Q13[ i ], SKP_Silk_SWB_detect_A_HP_Q13[ i ],
55 | psSWBdetect->S_HP_8_kHz[ i ], in_HP_8_kHz, HP_8_kHz_len );
56 | }
57 |
58 | /* Calculate energy in HP signal */
59 | SKP_Silk_sum_sqr_shift( &energy_32, &shift, in_HP_8_kHz, HP_8_kHz_len );
60 |
61 | /* Count concecutive samples above threshold, after adjusting threshold for number of input samples and shift */
62 | if( energy_32 > SKP_RSHIFT( SKP_SMULBB( HP_8_KHZ_THRES, HP_8_kHz_len ), shift ) ) {
63 | psSWBdetect->ConsecSmplsAboveThres += nSamplesIn;
64 | if( psSWBdetect->ConsecSmplsAboveThres > CONCEC_SWB_SMPLS_THRES ) {
65 | psSWBdetect->SWB_detected = 1;
66 | }
67 | } else {
68 | psSWBdetect->ConsecSmplsAboveThres -= nSamplesIn;
69 | psSWBdetect->ConsecSmplsAboveThres = SKP_max( psSWBdetect->ConsecSmplsAboveThres, 0 );
70 | }
71 |
72 | /* If sufficient speech activity and no SWB detected, we detect the signal as being WB */
73 | if( ( psSWBdetect->ActiveSpeech_ms > WB_DETECT_ACTIVE_SPEECH_MS_THRES ) && ( psSWBdetect->SWB_detected == 0 ) ) {
74 | psSWBdetect->WB_detected = 1;
75 | }
76 | }
77 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_div_oabi.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_typedef.h"
29 |
30 | SKP_int32 SKP_DIV32_arm( SKP_int32 a32, SKP_int32 b32 ) {
31 | return ( ( SKP_int32 )( ( a32 ) / ( b32 ) ) );
32 | }
33 |
34 |
35 |
36 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_init_encoder_FIX.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main_FIX.h"
29 |
30 | /*********************************/
31 | /* Initialize Silk Encoder state */
32 | /*********************************/
33 | SKP_int SKP_Silk_init_encoder_FIX(
34 | SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk FIX encoder state */
35 | ) {
36 | SKP_int ret = 0;
37 | /* Clear the entire encoder state */
38 | SKP_memset( psEnc, 0, sizeof( SKP_Silk_encoder_state_FIX ) );
39 |
40 | #if HIGH_PASS_INPUT
41 | psEnc->variable_HP_smth1_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
42 | psEnc->variable_HP_smth2_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
43 | #endif
44 |
45 | /* Used to deactivate e.g. LSF interpolation and fluctuation reduction */
46 | psEnc->sCmn.first_frame_after_reset = 1;
47 |
48 | /* Initialize Silk VAD */
49 | ret += SKP_Silk_VAD_Init( &psEnc->sCmn.sVAD );
50 |
51 | /* Initialize NSQ */
52 | psEnc->sCmn.sNSQ.prev_inv_gain_Q16 = 65536;
53 | psEnc->sCmn.sNSQ_LBRR.prev_inv_gain_Q16 = 65536;
54 |
55 | return( ret );
56 | }
57 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_inner_prod_aligned.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_inner_prod_aligned.c *
30 | * *
31 | * *
32 | * Copyright 2008-2010 (c), Skype Limited *
33 | * Date: 080601 *
34 | * */
35 | #include "SKP_Silk_SigProc_FIX.h"
36 |
37 | /* sum= for(i=0;i<len;i++)inVec1[i]*inVec2[i]; --- inner product */
38 | /* Note for ARM asm: */
39 | /* * inVec1 and inVec2 should be at least 2 byte aligned. (Or defined as short/int16) */
40 | /* * len should be positive 16bit integer. */
41 | /* * only when len>6, memory access can be reduced by half. */
42 |
43 | #if (EMBEDDED_ARM<5)
44 | SKP_int32 SKP_Silk_inner_prod_aligned(
45 | const SKP_int16* const inVec1, /* I input vector 1 */
46 | const SKP_int16* const inVec2, /* I input vector 2 */
47 | const SKP_int len /* I vector lengths */
48 | )
49 | {
50 | SKP_int i;
51 | SKP_int32 sum = 0;
52 | for( i = 0; i < len; i++ ) {
53 | sum = SKP_SMLABB( sum, inVec1[ i ], inVec2[ i ] );
54 | }
55 | return sum;
56 | }
57 | #endif
58 |
59 | #if (EMBEDDED_ARM<5)
60 | SKP_int64 SKP_Silk_inner_prod16_aligned_64(
61 | const SKP_int16 *inVec1, /* I input vector 1 */
62 | const SKP_int16 *inVec2, /* I input vector 2 */
63 | const SKP_int len /* I vector lengths */
64 | )
65 | {
66 | SKP_int i;
67 | SKP_int64 sum = 0;
68 | for( i = 0; i < len; i++ ) {
69 | sum = SKP_SMLALBB( sum, inVec1[ i ], inVec2[ i ] );
70 | }
71 | return sum;
72 | }
73 | #endif
74 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_interpolate.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main.h"
29 |
30 | /* Interpolate two vectors */
31 | void SKP_Silk_interpolate(
32 | SKP_int xi[ MAX_LPC_ORDER ], /* O interpolated vector */
33 | const SKP_int x0[ MAX_LPC_ORDER ], /* I first vector */
34 | const SKP_int x1[ MAX_LPC_ORDER ], /* I second vector */
35 | const SKP_int ifact_Q2, /* I interp. factor, weight on 2nd vector */
36 | const SKP_int d /* I number of parameters */
37 | )
38 | {
39 | SKP_int i;
40 |
41 | SKP_assert( ifact_Q2 >= 0 );
42 | SKP_assert( ifact_Q2 <= ( 1 << 2 ) );
43 |
44 | for( i = 0; i < d; i++ ) {
45 | xi[ i ] = ( SKP_int )( ( SKP_int32 )x0[ i ] + SKP_RSHIFT( SKP_MUL( ( SKP_int32 )x1[ i ] - ( SKP_int32 )x0[ i ], ifact_Q2 ), 2 ) );
46 | }
47 | }
48 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_k2a.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_k2a.c *
30 | * *
31 | * Step up function, converts reflection coefficients to prediction *
32 | * coefficients *
33 | * *
34 | * Copyright 2008 (c), Skype Limited *
35 | * Date: 080103 *
36 | * */
37 | #include "SKP_Silk_SigProc_FIX.h"
38 |
39 | /* Step up function, converts reflection coefficients to prediction coefficients */
40 | void SKP_Silk_k2a(
41 | SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
42 | const SKP_int16 *rc_Q15, /* I: Reflection coefficients [order] Q15 */
43 | const SKP_int32 order /* I: Prediction order */
44 | )
45 | {
46 | SKP_int k, n;
47 | SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
48 |
49 | for( k = 0; k < order; k++ ) {
50 | for( n = 0; n < k; n++ ) {
51 | Atmp[ n ] = A_Q24[ n ];
52 | }
53 | for( n = 0; n < k; n++ ) {
54 | A_Q24[ n ] = SKP_SMLAWB( A_Q24[ n ], SKP_LSHIFT( Atmp[ k - n - 1 ], 1 ), rc_Q15[ k ] );
55 | }
56 | A_Q24[ k ] = -SKP_LSHIFT( (SKP_int32)rc_Q15[ k ], 9 );
57 | }
58 | }
59 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_k2a_Q16.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_k2a.c *
30 | * *
31 | * Step up function, converts reflection coefficients to prediction *
32 | * coefficients *
33 | * *
34 | * Copyright 2008 (c), Skype Limited *
35 | * Date: 080103 *
36 | * */
37 | #include "SKP_Silk_SigProc_FIX.h"
38 |
39 | /* Step up function, converts reflection coefficients to prediction coefficients */
40 | void SKP_Silk_k2a_Q16(
41 | SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
42 | const SKP_int32 *rc_Q16, /* I: Reflection coefficients [order] Q16 */
43 | const SKP_int32 order /* I: Prediction order */
44 | )
45 | {
46 | SKP_int k, n;
47 | SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
48 |
49 | for( k = 0; k < order; k++ ) {
50 | for( n = 0; n < k; n++ ) {
51 | Atmp[ n ] = A_Q24[ n ];
52 | }
53 | for( n = 0; n < k; n++ ) {
54 | A_Q24[ n ] = SKP_SMLAWW( A_Q24[ n ], Atmp[ k - n - 1 ], rc_Q16[ k ] );
55 | }
56 | A_Q24[ k ] = -SKP_LSHIFT( rc_Q16[ k ], 8 );
57 | }
58 | }
59 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_lin2log.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_lin2log.c *
30 | * *
31 | * Convert input to a log scale *
32 | * Approximation of 128 * log2() *
33 | * *
34 | * Copyright 2006 (c), Skype Limited *
35 | * Date: 060221 *
36 | * */
37 | #include "SKP_Silk_SigProc_FIX.h"
38 | #if EMBEDDED_ARM<4
39 | /* Approximation of 128 * log2() (very close inverse of approx 2^() below) */
40 | /* Convert input to a log scale */
41 | SKP_int32 SKP_Silk_lin2log( const SKP_int32 inLin ) /* I: Input in linear scale */
42 | {
43 | SKP_int32 lz, frac_Q7;
44 |
45 | SKP_Silk_CLZ_FRAC( inLin, &lz, &frac_Q7 );
46 |
47 | /* Piece-wise parabolic approximation */
48 | return( SKP_LSHIFT( 31 - lz, 7 ) + SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), 179 ) );
49 | }
50 | #endif
51 |
52 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_lin2log_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 | #if EMBEDDED_ARM>=5
32 |
33 | VARDEF val_lz, r1
34 | VARDEF val_shift, r2
35 | VARDEF val_frac, r3
36 |
37 | VARDEF val_ret1, r1
38 | VARDEF val_128minfrac, r2
39 | VARDEF val_mul_ret, r0
40 | VARDEF val_add_ret, r3
41 | VARDEF const1, r1
42 |
43 | .globl SYM(SKP_Silk_lin2log)
44 | SYM(SKP_Silk_lin2log):
45 | stmdb sp!, {r4-r5, fp, ip, lr}
46 | add fp, sp, #16
47 |
48 | clz val_lz, r0 /*lz*/
49 | cmp val_lz, #24
50 | sub val_shift, val_lz, #24
51 | #ifdef _WINRT
52 | bge LR(0, f)
53 | rsb val_shift, val_lz, #24
54 | mov val_frac, r0, asr val_shift
55 | b LR(1, f)
56 | L(0)
57 | mov val_frac, r0, lsl val_shift
58 | L(1)
59 | #else
60 | rsblt val_shift, val_lz, #24
61 | movlt val_frac, r0, asr val_shift
62 | movge val_frac, r0, lsl val_shift
63 | #endif
64 | and val_frac, val_frac, #0x7F /*frac_Q7*/
65 |
66 | rsb val_ret1, val_lz, #31 /*31-lz*/
67 | rsb val_128minfrac, val_frac, #128 /*128-frac_Q7*/
68 | mov val_ret1, val_ret1, lsl #7
69 | mul val_mul_ret, val_frac, val_128minfrac /*SKP_MUL(frac_Q7, 128 - frac_Q7)*/
70 | add val_add_ret, val_ret1, val_frac
71 | mov const1, #179
72 | smlawb r0, val_mul_ret, const1, val_add_ret
73 |
74 | ldmia sp!, {r4-r5, fp, ip, pc}
75 |
76 | #elif EMBEDDED_ARM>=4
77 | VARDEF val_lz, r0
78 | VARDEF val_in, r4
79 | VARDEF val_shift, r1
80 | VARDEF val_frac, r2
81 | VARDEF val_ret1, r1
82 | VARDEF val_128minfrac, r3
83 | VARDEF val_mul_ret, r3
84 | VARDEF tmp0, r4
85 | VARDEF const1, r2
86 | VARDEF val_ret, r0
87 |
88 | .globl SYM(SKP_Silk_lin2log)
89 | SYM(SKP_Silk_lin2log):
90 | stmdb sp!, {r4-r5, fp, ip, lr}
91 | add fp, sp, #16
92 |
93 | mov val_in, r0
94 | bl SYM(SKP_Silk_CLZ32)
95 | cmp val_lz, #24
96 | sub val_shift, val_lz, #24
97 | rsblt val_shift, val_lz, #24
98 | movlt val_frac, val_in, asr val_shift
99 | movge val_frac, val_in, lsl val_shift
100 | and val_frac, val_frac, #0x7F /*frac_Q7*/
101 |
102 | rsb val_ret1, val_lz, #31 /*31-lz*/
103 | rsb val_128minfrac, val_frac, #128 /*128-frac_Q7*/
104 | mov val_ret1, val_ret1, lsl #7
105 | mul val_mul_ret, val_frac, val_128minfrac /*SKP_MUL(frac_Q7, 128 - frac_Q7)*/
106 | add val_ret, val_ret1, val_frac
107 | mov tmp0, #0
108 | mov const1, #0xB30000
109 | smlal tmp0, val_ret, val_mul_ret, const1
110 |
111 | ldmia sp!, {r4-r5, fp, ip, pc}
112 | #endif
113 | END
114 | #endif
115 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_log2lin.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_log2lin.c *
30 | * *
31 | * Convert input to a linear scale *
32 | * *
33 | * Copyright 2006 (c), Skype Limited *
34 | * Date: 060221 *
35 | * */
36 | #include "SKP_Silk_SigProc_FIX.h"
37 |
38 | /* Approximation of 2^() (very close inverse of SKP_Silk_lin2log()) */
39 | /* Convert input to a linear scale */
40 | SKP_int32 SKP_Silk_log2lin( const SKP_int32 inLog_Q7 ) /* I: Input on log scale */
41 | {
42 | SKP_int32 out, frac_Q7;
43 |
44 | if( inLog_Q7 < 0 ) {
45 | return( 0 );
46 | } else if( inLog_Q7 >= ( 31 << 7 ) ) {
47 | /* Saturate, and prevent wrap-around */
48 | return( SKP_int32_MAX );
49 | }
50 |
51 | out = SKP_LSHIFT( 1, SKP_RSHIFT( inLog_Q7, 7 ) );
52 | frac_Q7 = inLog_Q7 & 0x7F;
53 | if( inLog_Q7 < 2048 ) {
54 | /* Piece-wise parabolic approximation */
55 | out = SKP_ADD_RSHIFT( out, SKP_MUL( out, SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), -174 ) ), 7 );
56 | } else {
57 | /* Piece-wise parabolic approximation */
58 | out = SKP_MLA( out, SKP_RSHIFT( out, 7 ), SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), -174 ) );
59 | }
60 | return out;
61 | }
62 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_pitch_est_defines.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SIGPROCFIX_PITCH_EST_DEFINES_H
29 | #define SIGPROCFIX_PITCH_EST_DEFINES_H
30 |
31 | /************************************************************/
32 | /* Definitions For Fix pitch estimator */
33 | /************************************************************/
34 |
35 | #define PITCH_EST_SHORTLAG_BIAS_Q15 6554 /* 0.2f. for logarithmic weighting */
36 | #define PITCH_EST_PREVLAG_BIAS_Q15 6554 /* Prev lag bias */
37 | #define PITCH_EST_FLATCONTOUR_BIAS_Q20 52429 /* 0.05f */
38 |
39 | #endif
40 |
41 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_pitch_est_tables.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_typedef.h"
29 | #include "SKP_Silk_common_pitch_est_defines.h"
30 |
31 | /********************************************************/
32 | /* Auto Generated File from generate_pitch_est_tables.m */
33 | /********************************************************/
34 |
35 | const SKP_int16 SKP_Silk_CB_lags_stage2[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE2_EXT] =
36 | {
37 | {0, 2,-1,-1,-1, 0, 0, 1, 1, 0, 1},
38 | {0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
39 | {0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0},
40 | {0,-1, 2, 1, 0, 1, 1, 0, 0,-1,-1}
41 | };
42 |
43 | const SKP_int16 SKP_Silk_CB_lags_stage3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX] =
44 | {
45 | {-9,-7,-6,-5,-5,-4,-4,-3,-3,-2,-2,-2,-1,-1,-1, 0, 0, 0, 1, 1, 0, 1, 2, 2, 2, 3, 3, 4, 4, 5, 6, 5, 6, 8},
46 | {-3,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0,-1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 2, 3},
47 | { 3, 3, 2, 2, 2, 2, 1, 2, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,-1, 0, 0,-1,-1,-1,-1,-1,-2,-2,-2},
48 | { 9, 8, 6, 5, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 0, 1, 1, 0, 0, 0,-1,-1,-1,-2,-2,-2,-3,-3,-4,-4,-5,-5,-6,-7}
49 | };
50 |
51 | const SKP_int16 SKP_Silk_Lag_range_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ] [ PITCH_EST_NB_SUBFR ][ 2 ] =
52 | {
53 | /* Lags to search for low number of stage3 cbks */
54 | {
55 | {-2,6},
56 | {-1,5},
57 | {-1,5},
58 | {-2,7}
59 | },
60 | /* Lags to search for middle number of stage3 cbks */
61 | {
62 | {-4,8},
63 | {-1,6},
64 | {-1,6},
65 | {-4,9}
66 | },
67 | /* Lags to search for max number of stage3 cbks */
68 | {
69 | {-9,12},
70 | {-3,7},
71 | {-2,7},
72 | {-7,13}
73 | }
74 | };
75 |
76 | const SKP_int16 SKP_Silk_cbk_sizes_stage3[SKP_Silk_PITCH_EST_MAX_COMPLEX + 1] =
77 | {
78 | PITCH_EST_NB_CBKS_STAGE3_MIN,
79 | PITCH_EST_NB_CBKS_STAGE3_MID,
80 | PITCH_EST_NB_CBKS_STAGE3_MAX
81 | };
82 |
83 | const SKP_int16 SKP_Silk_cbk_offsets_stage3[SKP_Silk_PITCH_EST_MAX_COMPLEX + 1] =
84 | {
85 | ((PITCH_EST_NB_CBKS_STAGE3_MAX - PITCH_EST_NB_CBKS_STAGE3_MIN) >> 1),
86 | ((PITCH_EST_NB_CBKS_STAGE3_MAX - PITCH_EST_NB_CBKS_STAGE3_MID) >> 1),
87 | 0
88 | };
89 |
90 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_regularize_correlations_FIX.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_main_FIX.h"
29 |
30 | /* Add noise to matrix diagonal */
31 | void SKP_Silk_regularize_correlations_FIX(
32 | SKP_int32 *XX, /* I/O Correlation matrices */
33 | SKP_int32 *xx, /* I/O Correlation values */
34 | SKP_int32 noise, /* I Noise to add */
35 | SKP_int D /* I Dimension of XX */
36 | )
37 | {
38 | SKP_int i;
39 | for( i = 0; i < D; i++ ) {
40 | matrix_ptr( &XX[ 0 ], i, i, D ) = SKP_ADD32( matrix_ptr( &XX[ 0 ], i, i, D ), noise );
41 | }
42 | xx[ 0 ] += noise;
43 | }
44 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_down2.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_resampler_down2.c *
30 | * *
31 | * Downsample by a factor 2, mediocre quality *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * */
35 |
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #include "SKP_Silk_resampler_rom.h"
38 |
39 | #if (EMBEDDED_ARM<5)
40 | /* Downsample by a factor 2, mediocre quality */
41 | void SKP_Silk_resampler_down2(
42 | SKP_int32 *S, /* I/O: State vector [ 2 ] */
43 | SKP_int16 *out, /* O: Output signal [ len ] */
44 | const SKP_int16 *in, /* I: Input signal [ floor(len/2) ] */
45 | SKP_int32 inLen /* I: Number of input samples */
46 | )
47 | {
48 | SKP_int32 k, len2 = SKP_RSHIFT32( inLen, 1 );
49 | SKP_int32 in32, out32, Y, X;
50 |
51 | SKP_assert( SKP_Silk_resampler_down2_0 > 0 );
52 | SKP_assert( SKP_Silk_resampler_down2_1 < 0 );
53 |
54 | /* Internal variables and state are in Q10 format */
55 | for( k = 0; k < len2; k++ ) {
56 | /* Convert to Q10 */
57 | in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k ], 10 );
58 |
59 | /* All-pass section for even input sample */
60 | Y = SKP_SUB32( in32, S[ 0 ] );
61 | X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_down2_1 );
62 | out32 = SKP_ADD32( S[ 0 ], X );
63 | S[ 0 ] = SKP_ADD32( in32, X );
64 |
65 | /* Convert to Q10 */
66 | in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k + 1 ], 10 );
67 |
68 | /* All-pass section for odd input sample, and add to output of previous section */
69 | Y = SKP_SUB32( in32, S[ 1 ] );
70 | X = SKP_SMULWB( Y, SKP_Silk_resampler_down2_0 );
71 | out32 = SKP_ADD32( out32, S[ 1 ] );
72 | out32 = SKP_ADD32( out32, X );
73 | S[ 1 ] = SKP_ADD32( in32, X );
74 |
75 | /* Add, convert back to int16 and store to output */
76 | out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 11 ) );
77 | }
78 | }
79 | #endif
80 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_down2_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM>=5
33 | #define SKP_Silk_resampler_down2_0 0x2690
34 | #define SKP_Silk_resampler_down2_1 0x9B81
35 |
36 | VARDEF xy0, r4
37 | VARDEF xy1, r5
38 | VARDEF down2_coefs, _r7
39 | VARDEF S_0, r6
40 | VARDEF S_1, r8
41 | VARDEF in0, sb
42 | VARDEF in1, sl
43 | VARDEF out32, r0
44 |
45 | .set sp_S, 0
46 | .globl SYM(SKP_Silk_resampler_down2)
47 | SYM(SKP_Silk_resampler_down2):
48 | stmdb sp!, {r4-r10, fp, ip, lr}
49 | add fp, sp, #36
50 | sub sp, sp, #4
51 | ldrsh in0, [r2], #2 // Avoid un-aligned access
52 | ldrsh in1, [r2], #2
53 | str r0, [sp, #sp_S]
54 | ldmia r0, {S_0, S_1}
55 | mov down2_coefs, #0x26000000
56 | add down2_coefs, down2_coefs, #0x900000
57 | add down2_coefs, down2_coefs, #0x9B00
58 | add down2_coefs, down2_coefs, #0x81
59 | mov r3, r3, asr #1
60 | mov ip, #1024
61 | L(0)
62 | add out32, S_0, S_1
63 | rsb xy0, S_0, in0, lsl #10
64 | rsb xy1, S_1, in1, lsl #10
65 | smlawb xy0, xy0, down2_coefs, xy0
66 | smulwt xy1, xy1, down2_coefs
67 | add out32, out32, xy0
68 | add S_0, xy0, in0, lsl #10
69 | add out32, out32, xy1
70 | add S_1, xy1, in1, lsl #10
71 | #if EMBEDDED_ARM>=6
72 | qadd out32, out32, ip
73 | subs r3, r3, #1
74 | ssat out32, #16, out32, asr #11
75 | #ifdef _WINRT
76 | ble LR(1, f)
77 | ldrsh in0, [r2], #2
78 | ldrsh in1, [r2], #2
79 | L(1)
80 | #else
81 | ldrgtsh in0, [r2], #2
82 | ldrgtsh in1, [r2], #2
83 | #endif
84 | #else
85 | qadd out32, out32, ip
86 | cmp out32, #0x4000000
87 | movge out32, #0x4000000
88 | subge out32, out32, #1
89 | cmn out32, #0x4000000
90 | movlt out32, #0x4000000
91 | subs r3, r3, #1
92 | mov out32, out32, asr #11
93 | ldrgtsh in0, [r2], #2
94 | ldrgtsh in1, [r2], #2
95 | #endif
96 |
97 | strh out32, [r1], #2
98 | bgt LR(0, b)
99 |
100 | ldr r0, [sp, #sp_S]
101 | stmia r0, {S_0, S_1}
102 |
103 | add sp, sp, #4
104 | ldmia sp!, {r4-r10, fp, ip, pc}
105 | END
106 | #endif
107 | #endif
108 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_AR2.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_resampler_private_AR2. c *
30 | * *
31 | * Second order AR filter with single delay elements *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * */
35 |
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #include "SKP_Silk_resampler_private.h"
38 |
39 | #if (EMBEDDED_ARM<5)
40 | /* Second order AR filter with single delay elements */
41 | void SKP_Silk_resampler_private_AR2(
42 | SKP_int32 S[], /* I/O: State vector [ 2 ] */
43 | SKP_int32 out_Q8[], /* O: Output signal */
44 | const SKP_int16 in[], /* I: Input signal */
45 | const SKP_int16 A_Q14[], /* I: AR coefficients, Q14 */
46 | SKP_int32 len /* I: Signal length */
47 | )
48 | {
49 | SKP_int32 k;
50 | SKP_int32 out32;
51 |
52 | for( k = 0; k < len; k++ ) {
53 | out32 = SKP_ADD_LSHIFT32( S[ 0 ], (SKP_int32)in[ k ], 8 );
54 | out_Q8[ k ] = out32;
55 | out32 = SKP_LSHIFT( out32, 2 );
56 | S[ 0 ] = SKP_SMLAWB( S[ 1 ], out32, A_Q14[ 0 ] );
57 | S[ 1 ] = SKP_SMULWB( out32, A_Q14[ 1 ] );
58 | }
59 | }
60 | #endif
61 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_AR2_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM>=5
33 |
34 | VARDEF len, r4
35 | VARDEF S_0, r5
36 | VARDEF S_1, r6
37 | VARDEF in0, _r7
38 | VARDEF out32, r8
39 | VARDEF A_Q140, sb
40 | VARDEF A_Q141, sl
41 |
42 | .set sp_S, 0
43 | .globl SYM(SKP_Silk_resampler_private_AR2)
44 | SYM(SKP_Silk_resampler_private_AR2):
45 | stmdb sp!, {r4-r10, fp, ip, lr}
46 | add fp, sp, #36
47 | sub sp, sp, #4
48 | .set sp_len, 44
49 |
50 | str r0, [sp, #sp_S]
51 | ldr S_0, [r0], #4
52 | ldr S_1, [r0], #-4
53 | ldr len, [sp, #sp_len]
54 | ldrsh A_Q140, [r3], #2
55 | ldrsh A_Q141, [r3]
56 | cmp len, #0
57 | beq LR(1, f)
58 |
59 | L(0)
60 | ldrsh in0, [r2], #2
61 | add out32, S_0, in0, lsl #8
62 | str out32, [r1], #4
63 | subs len, len, #1
64 | mov out32, out32, lsl #2
65 | smlawb S_0, out32, A_Q140, S_1
66 | smulwb S_1, out32, A_Q141
67 | bgt LR(0, b)
68 |
69 | str S_0, [r0], #4
70 | str S_1, [r0]
71 | L(1)
72 | add sp, sp, #4
73 | ldmia sp!, {r4-r10, fp, ip, pc}
74 | END
75 | #endif
76 | #endif
77 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_ARMA4.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_resampler_private_ARMA4.c *
30 | * *
31 | * Fourth order ARMA filter, applies 64x gain *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * */
35 |
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #include "SKP_Silk_resampler_private.h"
38 |
39 | /* Fourth order ARMA filter */
40 | /* Internally operates as two biquad filters in sequence. */
41 |
42 | /* Coeffients are stored in a packed format: */
43 | /* { B1_Q14[1], B2_Q14[1], -A1_Q14[1], -A1_Q14[2], -A2_Q14[1], -A2_Q14[2], gain_Q16 } */
44 | /* where it is assumed that B*_Q14[0], B*_Q14[2], A*_Q14[0] are all 16384 */
45 | #if (EMBEDDED_ARM<5)
46 | void SKP_Silk_resampler_private_ARMA4(
47 | SKP_int32 S[], /* I/O: State vector [ 4 ] */
48 | SKP_int16 out[], /* O: Output signal */
49 | const SKP_int16 in[], /* I: Input signal */
50 | const SKP_int16 Coef[], /* I: ARMA coefficients [ 7 ] */
51 | SKP_int32 len /* I: Signal length */
52 | )
53 | {
54 | SKP_int32 k;
55 | SKP_int32 in_Q8, out1_Q8, out2_Q8, X;
56 |
57 | for( k = 0; k < len; k++ ) {
58 | in_Q8 = SKP_LSHIFT32( (SKP_int32)in[ k ], 8 );
59 |
60 | /* Outputs of first and second biquad */
61 | out1_Q8 = SKP_ADD_LSHIFT32( in_Q8, S[ 0 ], 2 );
62 | out2_Q8 = SKP_ADD_LSHIFT32( out1_Q8, S[ 2 ], 2 );
63 |
64 | /* Update states, which are stored in Q6. Coefficients are in Q14 here */
65 | X = SKP_SMLAWB( S[ 1 ], in_Q8, Coef[ 0 ] );
66 | S[ 0 ] = SKP_SMLAWB( X, out1_Q8, Coef[ 2 ] );
67 |
68 | X = SKP_SMLAWB( S[ 3 ], out1_Q8, Coef[ 1 ] );
69 | S[ 2 ] = SKP_SMLAWB( X, out2_Q8, Coef[ 4 ] );
70 |
71 | S[ 1 ] = SKP_SMLAWB( SKP_RSHIFT32( in_Q8, 2 ), out1_Q8, Coef[ 3 ] );
72 | S[ 3 ] = SKP_SMLAWB( SKP_RSHIFT32( out1_Q8, 2 ), out2_Q8, Coef[ 5 ] );
73 |
74 | /* Apply gain and store to output. The coefficient is in Q16 */
75 | out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32( SKP_SMLAWB( 128, out2_Q8, Coef[ 6 ] ), 8 ) );
76 | }
77 | }
78 | #endif
79 |
80 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_ARMA4_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM>=5
33 |
34 | VARDEF len, r0
35 | VARDEF S_0, r3
36 | VARDEF S_1, r4
37 | VARDEF S_2, r5
38 | VARDEF S_3, r6
39 | VARDEF in, _r7
40 | VARDEF out1, r8
41 | VARDEF coef01, sb
42 | VARDEF coef23, sl
43 | VARDEF coef45, ip
44 | VARDEF coef6, r8
45 | VARDEF coef_tmp, _r7
46 | VARDEF out2, lr
47 |
48 | .set sp_S, 0
49 | .set sp_coef, 4
50 | .globl SYM(SKP_Silk_resampler_private_ARMA4)
51 | SYM(SKP_Silk_resampler_private_ARMA4):
52 | stmdb sp!, {r4-r10, fp, ip, lr}
53 | add fp, sp, #36
54 | sub sp, sp, #8
55 | .set sp_len, 48
56 |
57 | ldr lr, [sp, #sp_len]
58 | ldrh coef01, [r3], #2
59 | ldrh S_1, [r3], #2
60 | ldrh coef23, [r3], #2
61 | ldrh S_2, [r3], #2
62 | ldrh coef45, [r3], #2
63 | ldrh S_3, [r3], #2
64 | ldrh coef6, [r3], #2
65 | cmp lr, #0
66 | str r0, [sp, #sp_S]
67 | beq LR(1, f) // if len==0
68 |
69 | str coef6, [sp, #sp_coef]
70 | ldrsh in, [r2], #2
71 | add coef01, coef01, S_1, lsl #16
72 | add coef23, coef23, S_2, lsl #16
73 | add coef45, coef45, S_3, lsl #16
74 | ldmia r0, {S_0, S_1, S_2, S_3}
75 | mov len, lr
76 |
77 | L(0)
78 | mov in, in, lsl #8
79 | add out1, in, S_0, lsl #2
80 | add out2, out1, S_2, lsl #2
81 |
82 | smlawb S_0, in, coef01, S_1
83 | smlawb S_0, out1, coef23, S_0
84 | smlawt S_2, out1, coef01, S_3
85 | smlawb S_2, out2, coef45, S_2
86 | smulwt S_1, out1, coef23
87 | smulwt S_3, out2, coef45
88 | add S_1, S_1, in, asr #2
89 | ldr coef_tmp, [sp, #sp_coef]
90 | add S_3, S_3, out1, asr #2
91 |
92 | mov out1, #128
93 | smlawb out1, out2, coef_tmp, out1
94 | #if EMBEDDED_ARM<6
95 | cmp out1, #0x800000
96 | movge out1, #0x800000
97 | subge out1, out1, #1
98 | cmn out1, #0x800000
99 | movlt out1, #0x800000
100 | mov out1, out1, asr #8
101 | #else
102 | ssat out1, #16, out1, asr #8
103 | #endif
104 | subs len, len, #1
105 | strh out1, [r1], #2
106 | #ifdef _WINRT
107 | ble LR(1, f)
108 | ldrsh in, [r2], #2
109 | b LR(0, b)
110 | L(1)
111 | #else
112 | ldrgtsh in, [r2], #2
113 | bgt LR(0, b)
114 | #endif
115 |
116 | ldr r0, [sp, #sp_S]
117 | stmia r0, {S_0, S_1, S_2, S_3}
118 | L(1)
119 | add sp, sp, #8
120 | ldmia sp!, {r4-r10, fp, ip, pc}
121 | END
122 | #endif
123 | #endif
124 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_IIR_FIR_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM>=5
33 |
34 | VARDEF ind, r4
35 | VARDEF tab1, r5
36 | VARDEF tab2, r6
37 | VARDEF tab3, _r7
38 | VARDEF val1, r8
39 | VARDEF val2, sb
40 | VARDEF val3, r2
41 | VARDEF val4, r3
42 | VARDEF tmp1, sl
43 | VARDEF tmp2, r2
44 | VARDEF tmp3, r3
45 | VARDEF tmp4, ip
46 | VARDEF out, sl
47 |
48 | .set sp_max_i, 0
49 | .set sp_inc, 4
50 |
51 | EXTERN SYM(SKP_Silk_resampler_frac_FIR_144_alt)
52 | .globl SYM(SKP_Silk_resampler_private_IIR_FIR_INTERPOL)
53 | SYM(SKP_Silk_resampler_private_IIR_FIR_INTERPOL):
54 | stmdb sp!, {r4-r10, fp, ip, lr}
55 | add fp, sp, #36
56 | sub sp, sp, #8
57 | str r2, [sp, #sp_max_i]
58 | str r3, [sp, #sp_inc]
59 | cmp r2, #0
60 | mov tmp3, #0xFF00
61 | mov ind, #0
62 | ble LR(1, f)
63 | add tmp3, tmp3, #0xFF
64 | L(0)
65 | ldr tmp1, TABLE(L0, =SKP_Silk_resampler_frac_FIR_144_alt)
66 | and tmp3, ind, tmp3
67 | mov tmp2, #144
68 | mov tmp4, ind, asr #16
69 | smulwb tmp2, tmp3, tmp2
70 | add tmp1, tmp1, tmp2, lsl #3
71 | add tmp1, tmp1, tmp2, lsl #2
72 | add tmp4, r1, tmp4, lsl #1
73 |
74 | ldmia tmp1, {tab1, tab2, tab3}
75 | ldrsh val1, [tmp4], #2
76 | ldrsh val2, [tmp4], #2
77 | ldrsh val3, [tmp4], #2
78 | ldrsh val4, [tmp4], #2
79 | smulbb out, val1, tab1
80 | smlabt out, val2, tab1, out
81 | ldrsh val1, [tmp4], #2
82 | ldrsh val2, [tmp4]
83 | smlabb out, val3, tab2, out
84 | smlabt out, val4, tab2, out
85 | ldr r2, [sp, #sp_max_i]
86 | ldr r3, [sp, #sp_inc]
87 | smlabb out, val1, tab3, out
88 | smlabt out, val2, tab3, out
89 | add ind, ind, r3
90 | adds out, out, #1<<14
91 | mov tmp3, #0xFF00
92 | #ifdef _WINRT
93 | bvc LR(2, f)
94 | mvn out, #0x80000000
95 | b LR(3, f)
96 | L(2)
97 | qadd out, out, out
98 | L(3)
99 | #else
100 | mvnvs out, #0x80000000
101 | qaddvc out, out, out
102 | #endif
103 | add tmp3, tmp3, #0xFF
104 | mov out, out, asr #16
105 | cmp ind, r2
106 | strh out, [r0], #2
107 | blt LR(0, b)
108 | L(1)
109 | add sp, sp, #8
110 | ldmia sp!, {r4-r10, fp, ip, pc}
111 |
112 | L(L0)
113 | DCD SYM(SKP_Silk_resampler_frac_FIR_144_alt)
114 | END
115 | #endif
116 | #endif
117 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_copy.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * File Name: SKP_Silk_resampler_private_copy.c *
30 | * *
31 | * Description: Copy. *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * All rights reserved. *
35 | * */
36 |
37 | #include "SKP_Silk_SigProc_FIX.h"
38 | #include "SKP_Silk_resampler_private.h"
39 |
40 | /* Copy */
41 | void SKP_Silk_resampler_private_copy(
42 | void *SS, /* I/O: Resampler state (unused) */
43 | SKP_int16 out[], /* O: Output signal */
44 | const SKP_int16 in[], /* I: Input signal */
45 | SKP_int32 inLen /* I: Number of input samples */
46 | )
47 | {
48 | SKP_memcpy( out, in, inLen * sizeof( SKP_int16 ) );
49 | }
50 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_private_up4.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_resampler_private_up4.c *
30 | * *
31 | * Upsample by a factor 4, low quality *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * */
35 |
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #include "SKP_Silk_resampler_private.h"
38 |
39 | /* Upsample by a factor 4, Note: very low quality, only use with output sampling rates above 96 kHz. */
40 | void SKP_Silk_resampler_private_up4(
41 | SKP_int32 *S, /* I/O: State vector [ 2 ] */
42 | SKP_int16 *out, /* O: Output signal [ 4 * len ] */
43 | const SKP_int16 *in, /* I: Input signal [ len ] */
44 | SKP_int32 len /* I: Number of INPUT samples */
45 | )
46 | {
47 | SKP_int32 k;
48 | SKP_int32 in32, out32, Y, X;
49 | SKP_int16 out16;
50 |
51 | SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
52 | SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
53 |
54 | /* Internal variables and state are in Q10 format */
55 | for( k = 0; k < len; k++ ) {
56 | /* Convert to Q10 */
57 | in32 = SKP_LSHIFT( (SKP_int32)in[ k ], 10 );
58 |
59 | /* All-pass section for even output sample */
60 | Y = SKP_SUB32( in32, S[ 0 ] );
61 | X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
62 | out32 = SKP_ADD32( S[ 0 ], X );
63 | S[ 0 ] = SKP_ADD32( in32, X );
64 |
65 | /* Convert back to int16 and store to output */
66 | out16 = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
67 | out[ 4 * k ] = out16;
68 | out[ 4 * k + 1 ] = out16;
69 |
70 | /* All-pass section for odd output sample */
71 | Y = SKP_SUB32( in32, S[ 1 ] );
72 | X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
73 | out32 = SKP_ADD32( S[ 1 ], X );
74 | S[ 1 ] = SKP_ADD32( in32, X );
75 |
76 | /* Convert back to int16 and store to output */
77 | out16 = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
78 | out[ 4 * k + 2 ] = out16;
79 | out[ 4 * k + 3 ] = out16;
80 | }
81 | }
82 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_structs.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * File Name: SKP_Silk_resampler_structs.h *
30 | * *
31 | * Description: Structs for IIR/FIR resamplers *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * All rights reserved. *
35 | * *
36 | * */
37 |
38 | #ifndef SKP_Silk_RESAMPLER_STRUCTS_H
39 | #define SKP_Silk_RESAMPLER_STRUCTS_H
40 |
41 | #ifdef __cplusplus
42 | extern "C" {
43 | #endif
44 |
45 | /* Flag to enable support for input/output sampling rates above 48 kHz. Turn off for embedded devices */
46 | #define RESAMPLER_SUPPORT_ABOVE_48KHZ 1
47 |
48 | #define SKP_Silk_RESAMPLER_MAX_FIR_ORDER 16
49 | #define SKP_Silk_RESAMPLER_MAX_IIR_ORDER 6
50 |
51 |
52 | typedef struct _SKP_Silk_resampler_state_struct{
53 | SKP_int32 sIIR[ SKP_Silk_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
54 | SKP_int32 sFIR[ SKP_Silk_RESAMPLER_MAX_FIR_ORDER ];
55 | SKP_int32 sDown2[ 2 ];
56 | void (*resampler_function)( void *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
57 | void (*up2_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
58 | SKP_int32 batchSize;
59 | SKP_int32 invRatio_Q16;
60 | SKP_int32 FIR_Fracs;
61 | SKP_int32 input2x;
62 | const SKP_int16 *Coefs;
63 | #if RESAMPLER_SUPPORT_ABOVE_48KHZ
64 | SKP_int32 sDownPre[ 2 ];
65 | SKP_int32 sUpPost[ 2 ];
66 | void (*down_pre_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
67 | void (*up_post_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
68 | SKP_int32 batchSizePrePost;
69 | SKP_int32 ratio_Q16;
70 | SKP_int32 nPreDownsamplers;
71 | SKP_int32 nPostUpsamplers;
72 | #endif
73 | SKP_int32 magic_number;
74 | } SKP_Silk_resampler_state_struct;
75 |
76 | #ifdef __cplusplus
77 | }
78 | #endif
79 | #endif /* SKP_Silk_RESAMPLER_STRUCTS_H */
80 |
81 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_up2.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_Silk_resampler_up2.c *
30 | * *
31 | * Upsample by a factor 2, low quality *
32 | * *
33 | * Copyright 2010 (c), Skype Limited *
34 | * */
35 |
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #include "SKP_Silk_resampler_rom.h"
38 |
39 | /* Upsample by a factor 2, low quality */
40 | #if EMBEDDED_ARM<5
41 | void SKP_Silk_resampler_up2(
42 | SKP_int32 *S, /* I/O: State vector [ 2 ] */
43 | SKP_int16 *out, /* O: Output signal [ 2 * len ] */
44 | const SKP_int16 *in, /* I: Input signal [ len ] */
45 | SKP_int32 len /* I: Number of input samples */
46 | )
47 | {
48 | SKP_int32 k;
49 | SKP_int32 in32, out32, Y, X;
50 |
51 | SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
52 | SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
53 | /* Internal variables and state are in Q10 format */
54 | for( k = 0; k < len; k++ ) {
55 | /* Convert to Q10 */
56 | in32 = SKP_LSHIFT( (SKP_int32)in[ k ], 10 );
57 |
58 | /* All-pass section for even output sample */
59 | Y = SKP_SUB32( in32, S[ 0 ] );
60 | X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
61 | out32 = SKP_ADD32( S[ 0 ], X );
62 | S[ 0 ] = SKP_ADD32( in32, X );
63 |
64 | /* Convert back to int16 and store to output */
65 | out[ 2 * k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
66 |
67 | /* All-pass section for odd output sample */
68 | Y = SKP_SUB32( in32, S[ 1 ] );
69 | X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
70 | out32 = SKP_ADD32( S[ 1 ], X );
71 | S[ 1 ] = SKP_ADD32( in32, X );
72 |
73 | /* Convert back to int16 and store to output */
74 | out[ 2 * k + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
75 | }
76 | }
77 | #endif
78 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_resampler_up2_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 |
32 | #if EMBEDDED_ARM>=5
33 | #define SKP_Silk_resampler_up2_lq_0 0x1FA6
34 | #define SKP_Silk_resampler_up2_lq_1 0x8FAF
35 |
36 | VARDEF xy0, r4
37 | VARDEF xy1, r5
38 | VARDEF up2_coefs, _r7
39 | VARDEF S_0, r6
40 | VARDEF S_1, r8
41 | VARDEF in, sb
42 | VARDEF out0, sl
43 | VARDEF out1, r0
44 |
45 | .set sp_S, 0
46 | .globl SYM(SKP_Silk_resampler_up2)
47 | SYM(SKP_Silk_resampler_up2):
48 | stmdb sp!, {r4-r10, fp, ip, lr}
49 | add fp, sp, #36
50 | sub sp, sp, #4
51 | mov up2_coefs, #0x1F000000
52 | ldrsh in, [r2], #2
53 | add up2_coefs, up2_coefs, #0xA60000
54 | str r0, [sp, #sp_S]
55 | add up2_coefs, up2_coefs, #0x8F00
56 | ldmia r0, {S_0, S_1}
57 | add up2_coefs, up2_coefs, #0xAF
58 | mov ip, #512
59 | cmp r3, #0
60 | beq LR(1, f)
61 | L(0)
62 | mov in, in, lsl #10
63 | sub xy0, in, S_0
64 | sub xy1, in, S_1
65 | smulwt xy0, xy0, up2_coefs
66 | smlawb xy1, xy1, up2_coefs, xy1
67 | add out0, S_0, xy0
68 | add out1, S_1, xy1
69 | add S_0, in, xy0
70 | add S_1, in, xy1
71 | qadd out0, out0, ip
72 | qadd out1, out1, ip
73 | #if EMBEDDED_ARM<6
74 | cmp out0, #0x2000000
75 | movge out0, #0x2000000
76 | subge out0, out0, #1
77 | cmn out0, #0x2000000
78 | movlt out0, #0x2000000
79 | cmp out1, #0x2000000
80 | movge out1, #0x2000000
81 | subge out1 ,out1, #1
82 | cmn out1, #0x2000000
83 | movlt out1, #0x2000000
84 | mov out0, out0, asr #10
85 | mov out1, out1, asr #10
86 | #else
87 | ssat out0, #16, out0, asr #10
88 | ssat out1, #16, out1, asr #10
89 | #endif
90 | subs r3, r3, #1
91 | #ifdef _WINRT
92 | ble LR(2, f)
93 | ldrsh in, [r2], #2
94 | strh out0, [r1], #2
95 | strh out1, [r1], #2
96 | b LR(0, b)
97 | L(2)
98 | strh out0, [r1], #2
99 | strh out1, [r1], #2
100 | #else
101 | ldrgtsh in, [r2], #2
102 | strh out0, [r1], #2
103 | strh out1, [r1], #2
104 | bgt LR(0, b)
105 | #endif
106 |
107 | ldr r0, [sp, #sp_S]
108 | stmia r0, {S_0, S_1}
109 | L(1)
110 | add sp, sp, #4
111 | ldmia sp!, {r4-r10, fp, ip, pc}
112 | END
113 | #endif
114 | #endif
115 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_scale_copy_vector16.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_SigProc_FIX.h"
29 |
30 | /* Copy and multiply a vector by a constant */
31 | void SKP_Silk_scale_copy_vector16(
32 | SKP_int16 *data_out,
33 | const SKP_int16 *data_in,
34 | SKP_int32 gain_Q16, /* (I): gain in Q16 */
35 | const SKP_int dataSize /* (I): length */
36 | )
37 | {
38 | SKP_int i;
39 | SKP_int32 tmp32;
40 |
41 | for( i = 0; i < dataSize; i++ ) {
42 | tmp32 = SKP_SMULWB( gain_Q16, data_in[ i ] );
43 | data_out[ i ] = (SKP_int16)SKP_CHECK_FIT16( tmp32 );
44 | }
45 | }
46 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_scale_vector.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_SigProc_FIX.h"
29 |
30 | /* Multiply a vector by a constant */
31 | void SKP_Silk_scale_vector32_Q26_lshift_18(
32 | SKP_int32 *data1, /* (I/O): Q0/Q18 */
33 | SKP_int32 gain_Q26, /* (I): Q26 */
34 | SKP_int dataSize /* (I): length */
35 | )
36 | {
37 | SKP_int i;
38 |
39 | for( i = 0; i < dataSize; i++ ) {
40 | data1[ i ] = (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( SKP_SMULL( data1[ i ], gain_Q26 ), 8 ) );// OUTPUT: Q18
41 | }
42 | }
43 |
44 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_sigm_Q15.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | /* *
29 | * SKP_sigm_Q15.c *
30 | * *
31 | * Approximate sigmoid function *
32 | * *
33 | * Copyright 2006 (c), Skype Limited *
34 | * Date: 060221 *
35 | * */
36 | #include "SKP_Silk_SigProc_FIX.h"
37 | #if EMBEDDED_ARM<4
38 | /********************************/
39 | /* approximate sigmoid function */
40 | /********************************/
41 | /* fprintf(1, '%d, ', round(1024 * ([1 ./ (1 + exp(-(1:5))), 1] - 1 ./ (1 + exp(-(0:5)))))); */
42 | static const SKP_int32 sigm_LUT_slope_Q10[ 6 ] = {
43 | 237, 153, 73, 30, 12, 7
44 | };
45 | /* fprintf(1, '%d, ', round(32767 * 1 ./ (1 + exp(-(0:5))))); */
46 | static const SKP_int32 sigm_LUT_pos_Q15[ 6 ] = {
47 | 16384, 23955, 28861, 31213, 32178, 32548
48 | };
49 | /* fprintf(1, '%d, ', round(32767 * 1 ./ (1 + exp((0:5))))); */
50 | static const SKP_int32 sigm_LUT_neg_Q15[ 6 ] = {
51 | 16384, 8812, 3906, 1554, 589, 219
52 | };
53 |
54 | SKP_int SKP_Silk_sigm_Q15( SKP_int in_Q5 )
55 | {
56 | SKP_int ind;
57 |
58 | if( in_Q5 < 0 ) {
59 | /* Negative input */
60 | in_Q5 = -in_Q5;
61 | if( in_Q5 >= 6 * 32 ) {
62 | return 0; /* Clip */
63 | } else {
64 | /* Linear interpolation of look up table */
65 | ind = SKP_RSHIFT( in_Q5, 5 );
66 | return( sigm_LUT_neg_Q15[ ind ] - SKP_SMULBB( sigm_LUT_slope_Q10[ ind ], in_Q5 & 0x1F ) );
67 | }
68 | } else {
69 | /* Positive input */
70 | if( in_Q5 >= 6 * 32 ) {
71 | return 32767; /* clip */
72 | } else {
73 | /* Linear interpolation of look up table */
74 | ind = SKP_RSHIFT( in_Q5, 5 );
75 | return( sigm_LUT_pos_Q15[ ind ] + SKP_SMULBB( sigm_LUT_slope_Q10[ ind ], in_Q5 & 0x1F ) );
76 | }
77 | }
78 | }
79 | #endif
80 |
81 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_sigm_Q15_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 | #if EMBEDDED_ARM>=4
32 |
33 | VARDEF ptr_slope, r6
34 | VARDEF ptr_LUT, _r7
35 | VARDEF in_Q5, r1
36 | VARDEF ind, r2
37 | VARDEF val_slope, r5
38 | VARDEF val_PUT, r4
39 | VARDEF in_Q5_tmp, r3
40 |
41 | .globl SYM(SKP_Silk_sigm_Q15)
42 | SYM(SKP_Silk_sigm_Q15):
43 | stmdb sp!, {r4-r7, fp, ip, lr}
44 | add fp, sp, #24
45 | cmp r0, #0
46 | ldr ptr_slope, TABLE(L0, =SKP_Silk_sigm_tab)
47 |
48 | mov in_Q5, r0
49 | rsblt in_Q5, r0, #0
50 | mov r0, #32768
51 | addlt ptr_slope, ptr_slope, #24
52 | movlt r0, #1
53 | add ptr_LUT, ptr_slope, #12 /*sigm_LUT_pos_Q15*/
54 | cmp in_Q5, #192 /*6*32*/
55 | sub r0, r0, #1
56 |
57 | bge LR(1, f)
58 | mov ind, in_Q5, asr #5 /*ind*/
59 | mov ind, ind, lsl #1
60 | and in_Q5_tmp, in_Q5, #0x1F
61 | ldrsh val_slope, [ptr_slope, ind] /*sigm_LUT_slope_Q10*/
62 | ldrsh val_PUT, [ptr_LUT, ind] /*sigm_LUT_pos/neg_Q15*/
63 | mla r0, val_slope, in_Q5_tmp, val_PUT
64 | L(1)
65 | ldmia sp!, {r4-r7, fp, ip, pc}
66 |
67 | L(L0)
68 | DCD SYM(SKP_Silk_sigm_tab)
69 |
70 | SKP_TABLE SKP_Silk_sigm_tab, 2
71 | DCW 237, 153, 73, 30, 12, 7, \
72 | 16384, 23955, 28861, 31213, 32178, 32548, \
73 | -237, -153, -73, -30, -12, -7, \
74 | 16384, 8812, 3906, 1554, 589, 219
75 | END
76 | #endif
77 | #endif
78 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_sum_sqr_shift_arm.S:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #if defined(__arm__)
29 |
30 | #include "SKP_Silk_AsmPreproc.h"
31 | #if EMBEDDED_ARM>=5
32 |
33 | VARDEF x0, r4
34 | VARDEF nrg_tmp, r5
35 | VARDEF shift, r6
36 | VARDEF nrg, _r7
37 | VARDEF idx, r8
38 |
39 | .globl SYM(SKP_Silk_sum_sqr_shift)
40 | SYM(SKP_Silk_sum_sqr_shift):
41 | stmdb sp!, {r4-r8, fp, ip, lr}
42 | add fp, sp, #28
43 | mov idx, r3
44 | ands nrg_tmp, r2, #2
45 | mov nrg, #0
46 | #ifdef _WINRT
47 | beq LR(6, f)
48 | ldrh x0, [r2], #2
49 | smulbb nrg, x0, x0
50 | sub idx, idx, #1
51 | L(6)
52 | #else
53 | ldrneh x0, [r2], #2
54 | smulbbne nrg, x0, x0
55 | subne idx, idx, #1
56 | #endif
57 |
58 | ldr r4, [r2], #4
59 | mov shift, #0
60 | sub idx, idx, #1
61 | L(0)
62 | subs idx, idx, #2
63 | SKP_SMLAD nrg, x0, x0, nrg
64 | #ifdef _WINRT
65 | ldrgt x0, [r2]
66 | addgt r2, r2, #4
67 | #else
68 | ldrgt x0, [r2], #4
69 | #endif
70 | cmp nrg, #0
71 | blt LR(1, f)
72 | cmp idx, #0
73 | bgt LR(0, b)
74 | beq LR(4, f)
75 | b LR(5, f)
76 | L(1)
77 | mov nrg, nrg, lsr #2
78 | mov shift, #2
79 | cmp idx, #0
80 | beq LR(4, f)
81 | blt LR(5, f)
82 | L(3)
83 | subs idx, idx, #2
84 | SKP_SMUAD nrg_tmp, x0, x0
85 | #ifdef _WINRT
86 | ldrgt x0, [r2]
87 | addgt r2, r2, #4
88 | mov nrg_tmp, nrg_tmp, lsr shift
89 | adds nrg, nrg, nrg_tmp
90 | #else
91 | ldrgt x0, [r2], #4
92 | add nrg, nrg, nrg_tmp, lsr shift
93 | cmp nrg, #0
94 | #endif
95 | movlt nrg, nrg, lsr #2
96 | addlt shift, shift, #2
97 | cmp idx, #0
98 | bgt LR(3, b)
99 | blt LR(5, f)
100 | L(4)
101 | ldrh x0, [r2]
102 | smulbb nrg_tmp, x0, x0
103 | #ifdef _WINRT
104 | mov nrg_tmp, nrg_tmp, lsr shift
105 | add nrg, nrg, nrg_tmp
106 | #else
107 | add nrg, nrg, nrg_tmp, lsr shift
108 | #endif
109 | L(5)
110 | ands nrg_tmp, nrg, #0xC0000000
111 | movne nrg, nrg, lsr #2
112 | addne shift, shift, #2
113 | str shift, [r1]
114 | str nrg, [r0]
115 |
116 | ldmia sp!, {r4-r8, fp, ip, pc}
117 | END
118 | #endif
119 | #endif
120 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_NLSF_CB0_10.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_TABLES_NLSF_CB0_10_H
29 | #define SKP_SILK_TABLES_NLSF_CB0_10_H
30 |
31 | #include "SKP_Silk_define.h"
32 |
33 | #ifdef __cplusplus
34 | extern "C"
35 | {
36 | #endif
37 |
38 | #define NLSF_MSVQ_CB0_10_STAGES 6
39 | #define NLSF_MSVQ_CB0_10_VECTORS 120
40 |
41 | /* NLSF codebook entropy coding tables */
42 | extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ NLSF_MSVQ_CB0_10_VECTORS + NLSF_MSVQ_CB0_10_STAGES ];
43 | extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_10_CDF_start_ptr[ NLSF_MSVQ_CB0_10_STAGES ];
44 | extern const SKP_int SKP_Silk_NLSF_MSVQ_CB0_10_CDF_middle_idx[ NLSF_MSVQ_CB0_10_STAGES ];
45 |
46 | #ifdef __cplusplus
47 | }
48 | #endif
49 |
50 | #endif
51 |
52 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_NLSF_CB0_16.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_TABLES_NLSF_CB0_16_H
29 | #define SKP_SILK_TABLES_NLSF_CB0_16_H
30 |
31 | #include "SKP_Silk_define.h"
32 |
33 | #ifdef __cplusplus
34 | extern "C"
35 | {
36 | #endif
37 |
38 | #define NLSF_MSVQ_CB0_16_STAGES 10
39 | #define NLSF_MSVQ_CB0_16_VECTORS 216
40 |
41 | /* NLSF codebook entropy coding tables */
42 | extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ NLSF_MSVQ_CB0_16_VECTORS + NLSF_MSVQ_CB0_16_STAGES ];
43 | extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_16_CDF_start_ptr[ NLSF_MSVQ_CB0_16_STAGES ];
44 | extern const SKP_int SKP_Silk_NLSF_MSVQ_CB0_16_CDF_middle_idx[ NLSF_MSVQ_CB0_16_STAGES ];
45 |
46 | #ifdef __cplusplus
47 | }
48 | #endif
49 |
50 | #endif
51 |
52 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_NLSF_CB1_10.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_TABLES_NLSF_CB1_10_H
29 | #define SKP_SILK_TABLES_NLSF_CB1_10_H
30 |
31 | #include "SKP_Silk_define.h"
32 |
33 | #ifdef __cplusplus
34 | extern "C"
35 | {
36 | #endif
37 |
38 | #define NLSF_MSVQ_CB1_10_STAGES 6
39 | #define NLSF_MSVQ_CB1_10_VECTORS 72
40 |
41 | /* NLSF codebook entropy coding tables */
42 | extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ NLSF_MSVQ_CB1_10_VECTORS + NLSF_MSVQ_CB1_10_STAGES ];
43 | extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_10_CDF_start_ptr[ NLSF_MSVQ_CB1_10_STAGES ];
44 | extern const SKP_int SKP_Silk_NLSF_MSVQ_CB1_10_CDF_middle_idx[ NLSF_MSVQ_CB1_10_STAGES ];
45 |
46 | #ifdef __cplusplus
47 | }
48 | #endif
49 |
50 | #endif
51 |
52 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_NLSF_CB1_16.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #ifndef SKP_SILK_TABLES_NLSF_CB1_16_H
29 | #define SKP_SILK_TABLES_NLSF_CB1_16_H
30 |
31 | #include "SKP_Silk_define.h"
32 |
33 | #ifdef __cplusplus
34 | extern "C"
35 | {
36 | #endif
37 |
38 | #define NLSF_MSVQ_CB1_16_STAGES 10
39 | #define NLSF_MSVQ_CB1_16_VECTORS 104
40 |
41 | /* NLSF codebook entropy coding tables */
42 | extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ NLSF_MSVQ_CB1_16_VECTORS + NLSF_MSVQ_CB1_16_STAGES ];
43 | extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_16_CDF_start_ptr[ NLSF_MSVQ_CB1_16_STAGES ];
44 | extern const SKP_int SKP_Silk_NLSF_MSVQ_CB1_16_CDF_middle_idx[ NLSF_MSVQ_CB1_16_STAGES ];
45 |
46 | #ifdef __cplusplus
47 | }
48 | #endif
49 |
50 | #endif
51 |
52 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_gain.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_tables.h"
29 |
30 | #ifdef __cplusplus
31 | extern "C"
32 | {
33 | #endif
34 |
35 | const SKP_uint16 SKP_Silk_gain_CDF[ 2 ][ 65 ] =
36 | {
37 | {
38 | 0, 18, 45, 94, 181, 320, 519, 777,
39 | 1093, 1468, 1909, 2417, 2997, 3657, 4404, 5245,
40 | 6185, 7228, 8384, 9664, 11069, 12596, 14244, 16022,
41 | 17937, 19979, 22121, 24345, 26646, 29021, 31454, 33927,
42 | 36438, 38982, 41538, 44068, 46532, 48904, 51160, 53265,
43 | 55184, 56904, 58422, 59739, 60858, 61793, 62568, 63210,
44 | 63738, 64165, 64504, 64769, 64976, 65133, 65249, 65330,
45 | 65386, 65424, 65451, 65471, 65487, 65501, 65513, 65524,
46 | 65535
47 | },
48 | {
49 | 0, 214, 581, 1261, 2376, 3920, 5742, 7632,
50 | 9449, 11157, 12780, 14352, 15897, 17427, 18949, 20462,
51 | 21957, 23430, 24889, 26342, 27780, 29191, 30575, 31952,
52 | 33345, 34763, 36200, 37642, 39083, 40519, 41930, 43291,
53 | 44602, 45885, 47154, 48402, 49619, 50805, 51959, 53069,
54 | 54127, 55140, 56128, 57101, 58056, 58979, 59859, 60692,
55 | 61468, 62177, 62812, 63368, 63845, 64242, 64563, 64818,
56 | 65023, 65184, 65306, 65391, 65447, 65482, 65505, 65521,
57 | 65535
58 | }
59 | };
60 |
61 | const SKP_int SKP_Silk_gain_CDF_offset = 32;
62 |
63 |
64 | const SKP_uint16 SKP_Silk_delta_gain_CDF[ 46 ] = {
65 | 0, 2358, 3856, 7023, 15376, 53058, 59135, 61555,
66 | 62784, 63498, 63949, 64265, 64478, 64647, 64783, 64894,
67 | 64986, 65052, 65113, 65169, 65213, 65252, 65284, 65314,
68 | 65338, 65359, 65377, 65392, 65403, 65415, 65424, 65432,
69 | 65440, 65448, 65455, 65462, 65470, 65477, 65484, 65491,
70 | 65499, 65506, 65513, 65521, 65528, 65535
71 | };
72 |
73 | const SKP_int SKP_Silk_delta_gain_CDF_offset = 5;
74 |
75 | #ifdef __cplusplus
76 | }
77 | #endif
78 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_sign.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_tables.h"
29 |
30 | const SKP_uint16 SKP_Silk_sign_CDF[ 36 ] =
31 | {
32 | 37840, 36944, 36251, 35304,
33 | 34715, 35503, 34529, 34296,
34 | 34016, 47659, 44945, 42503,
35 | 40235, 38569, 40254, 37851,
36 | 37243, 36595, 43410, 44121,
37 | 43127, 40978, 38845, 40433,
38 | 38252, 37795, 36637, 59159,
39 | 55630, 51806, 48073, 45036,
40 | 48416, 43857, 42678, 41146,
41 | };
42 |
43 |
--------------------------------------------------------------------------------
/silk/src/SKP_Silk_tables_type_offset.c:
--------------------------------------------------------------------------------
1 | /***********************************************************************
2 | Copyright (c) 2006-2012, Skype Limited. All rights reserved.
3 | Redistribution and use in source and binary forms, with or without
4 | modification, (subject to the limitations in the disclaimer below)
5 | are permitted provided that the following conditions are met:
6 | - Redistributions of source code must retain the above copyright notice,
7 | this list of conditions and the following disclaimer.
8 | - Redistributions in binary form must reproduce the above copyright
9 | notice, this list of conditions and the following disclaimer in the
10 | documentation and/or other materials provided with the distribution.
11 | - Neither the name of Skype Limited, nor the names of specific
12 | contributors, may be used to endorse or promote products derived from
13 | this software without specific prior written permission.
14 | NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 | BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 | CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 | BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 | USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | ***********************************************************************/
27 |
28 | #include "SKP_Silk_tables.h"
29 |
30 | const SKP_uint16 SKP_Silk_type_offset_CDF[ 5 ] = {
31 | 0, 37522, 41030, 44212, 65535
32 | };
33 |
34 | const SKP_int SKP_Silk_type_offset_CDF_offset = 2;
35 |
36 |
37 | const SKP_uint16 SKP_Silk_type_offset_joint_CDF[ 4 ][ 5 ] =
38 | {
39 | {
40 | 0, 57686, 61230, 62358, 65535
41 | },
42 | {
43 | 0, 18346, 40067, 43659, 65535
44 | },
45 | {
46 | 0, 22694, 24279, 35507, 65535
47 | },
48 | {
49 | 0, 6067, 7215, 13010, 65535
50 | }
51 | };
52 |
53 |
--------------------------------------------------------------------------------
/windows/CHANGELOG.md:
--------------------------------------------------------------------------------
1 | ## ChangeLog
2 |
3 | <b>Version 1.0.3.3</b> (23 Jan 2020)
4 | * Fix a bug form 1.0.3.2.
5 |
6 | <b>Version 1.0.3.2</b> (04 Jan 2020)
7 | * Repack application by Obfuscator.
8 |
9 | <b>Version 1.0.3.1</b> (17 June 2019)
10 | * Repack application by UPX.
11 |
12 | <b>Version 1.0.3.0</b> (17 June 2019)
13 | * Add code cert, repack application.
14 |
15 | <b>Version 1.0.2.9</b> (24 May 2019)
16 | * Repack application by ASPack.
17 |
18 | <b>Version 1.0.2.8</b> (30 Mar 2019)
19 | * Repack application.
20 |
21 | <b>Version 1.0.2.7</b> (19 Feb 2019)
22 | * Fix a bug.
23 |
24 | <b>Version 1.0.2.6</b> (14 Feb 2019)
25 | * Repack application.
26 |
27 | <b>Version 1.0.2.5</b> (01 Sept 2017)
28 | * Optimized code.
29 |
30 | <b>Version 1.0.2.4</b> (22 Aug 2017)
31 | * Fix some bugs.
32 |
33 | <b>Version 1.0.2.3</b> (22 Aug 2017)
34 | * Fix some bugs.
35 | * Remove drag and drop function.
36 |
37 | <b>Version 1.0.2.2</b> (19 Aug 2017)
38 | * Fix some bugs.
39 |
40 | <b>Version 1.0.2.1</b> (28 Jun 2017)
41 | * Add files to listview via drag and drop.
42 |
43 | <b>Version 1.0.2.0</b> (28 May 2017)
44 | * Add AMR header fix checkbox.
45 | * Wechat mini program audio conversion support.
46 | * Fix some bugs.
47 |
48 | <b>Version 1.0.1.2</b> (19 Feb 2017)
49 | * Force frequency, max CBR bitrate output(for mp3).
50 |
51 | <b>Version 1.0.1.1</b> (03 Nov 2016)
52 | * Add custom encode output format support.
53 | * Fix some bugs.
54 |
55 | <b>Version 1.0.1.0</b> (30 Sept 2016)
56 | * Fix miss AMR header error.
57 | * Add about page.
58 | * Fix some bugs.
59 |
60 | <b>Version 1.0.0.6</b> (22 Sept 2016)
61 | * Fix Wechat play Silk v3 encode file(from silk2mp3) error.
62 | * Add custom decode output format support.
63 | * Fix some bugs.
64 |
65 | <b>Version 1.0.0.5</b> (27 Jul 2016)
66 | * Optimized code.
67 | * Enable professional mode when FFmpeg has been found.
68 |
69 | <b>Version 1.0.0.4</b> (15 Jun 2016)
70 | * Add Chinese(Traditional) language support.
71 | * Fix some bugs.
72 |
73 | <b>Version 1.0.0.3</b> (01 Jun 2016)
74 | * Add Silk v3 encode support.
75 | * Fix some bugs.
76 |
77 | <b>Version 1.0.0.2</b> (29 Apr 2016)
78 | * Hide command windows when converting.
79 |
80 | <b>Version 1.0.0.1</b> (13 Apr 2016)
81 | * Add English language support.
82 | * Fix some bugs.
83 |
84 | <b>Version 1.0.0.0</b> (12 Apr 2016)
85 | * First published version.
86 |
87 |
88 | ## 更新历史
89 |
90 | 2020-01-23发布1.0.3.3版本：
91 | * 修复上一版本打包方式导致的win10系统以下不可用问题。
92 |
93 | 2020-01-04发布1.0.3.2版本：
94 | * 混淆代码重新打包程序。
95 |
96 | 2019-06-17发布1.0.3.1版本：
97 | * 使用UPX重新打包程序。
98 |
99 | 2019-06-17发布1.0.3.0版本：
100 | * 添加代码证书重新打包程序。
101 |
102 | 2019-05-24发布1.0.2.9版本：
103 | * 使用ASPack重新打包程序。
104 |
105 | 2019-03-30发布1.0.2.8版本：
106 | * 重新打包程序。
107 |
108 | 2019-02-19发布1.0.2.7版本：
109 | * 修复上一版本列表无法显示问题。
110 |
111 | 2019-02-14发布1.0.2.6版本：
112 | * 重新打包程序。
113 |
114 | 2017-09-01发布1.0.2.5版本：
115 | * 优化代码。
116 |
117 | 2017-08-22发布1.0.2.4版本：
118 | * 修复一些Bug。
119 |
120 | 2017-08-22发布1.0.2.3版本：
121 | * 修复一些Bug。
122 | * 去掉拖拽功能。
123 |
124 | 2017-08-19发布1.0.2.2版本：
125 | * 修复一些Bug。
126 |
127 | 2017-06-28发布1.0.2.1版本：
128 | * 支持拖拽文件进列表框替换待转换文件列表。
129 |
130 | 2017-05-28发布1.0.2.0版本：
131 | * “尝试强制AMR编码解码文件”变为可选项。
132 | * 支持微信小程序语音转换（包括编码、解码）。
133 | * 修复一些Bug。
134 |
135 | 2017-02-19发布1.0.1.2版本：
136 | * 强制输出固定频率和最大化比特率（主要针对MP3）。
137 |
138 | 2016-11-03发布1.0.1.1版本：
139 | * 添加编码输出格式自定义。
140 | * 修复一些Bug。
141 |
142 | 2016-09-30发布1.0.1.0版本：
143 | * 修复缺失AMR头无法转换问题。
144 | * 新增关于页。
145 | * 修复一些Bug。
146 |
147 | 2016-09-22发布1.0.0.6版本：
148 | * 修复编码后，微信播放完，会有杂音。
149 | * 新增解码输出格式自定义。
150 | * 修复一些Bug。
151 |
152 | 2016-07-27发布1.0.0.5版本：
153 | * 最小加载模式。
154 | * 当发现程序目录下存在FFmpeg时，启用专业模式。
155 |
156 | 2016-06-15发布1.0.0.4版本：
157 | * 添加语言支持，新增繁体中文支持。
158 | * 修复一些Bug。
159 |
160 | 2016-06-01发布1.0.0.3版本：
161 | * 支持转换音频文件为Silk v3编码。
162 | * 修复一些Bug。
163 |
164 | 2016-04-29发布1.0.0.2版本：
165 | * 隐藏转换时弹出的命令行窗口。
166 |
167 | 2016-04-13发布1.0.0.1版本：
168 | * 添加语言支持，新增英文支持。
169 | * 修复一些Bug。
170 |
171 | 2016-04-12发布1.0.0.0版本：
172 | * 第一个版本，由Autoit3编译而成。
173 |
--------------------------------------------------------------------------------
/windows/README.md:
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1 | # Silk2MP3
2 |
3 | ## Description
4 |
5 | Decode silk v3 audio files (like wechat amr, aud files, qq slk files) and convert to other format.
6 |
7 | The program for Windows users.
8 |
9 | Batch conversion support.
10 |
11 | Also support encode to silk v3 (Need `silk_v3_encoder`), compatible with QQ/Wechat.
12 |
13 | Wechat mini program audio conversion support.
14 |
15 | ## Requirement
16 |
17 | * silk_v3_decoder
18 | * lame
19 |
20 | ## Expansion
21 |
22 | * silk_v3_encoder (Encode to silk v3 support)
23 | * ffmpeg (Note: When using FFmpeg, do not need LAME any more)
24 |
25 | ## How To Use
26 |
27 | Download the `lame.exe`, `silk2mp3.exe`, `silk_v3_decoder.exe` in one folder. Then run the `silk2mp3.exe`.
28 |
29 | [Click here to download zip package for silk2mp3](https://dl.kn007.net/directlink/silk2mp3.zip "silk2mp3.zip").
30 |
31 | If need more features, please download [expansion package](https://dl.kn007.net/directlink/silk2mp3-expansion.zip "silk2mp3-expansion.zip").
32 |
33 | Also you can download the [full version](https://dl.kn007.net/directlink/silk2mp3-full.zip "silk2mp3-full.zip") to get more features.
34 |
35 | ## Screenshots
36 |
37 | 
38 |
39 | [More screenshots](/windows/screenshots/)
40 |
41 | ## Hash
42 |
43 | MD5: 5956F1AD437FD25F81BD31665F8FA1B6
44 |
45 | SHA1: A17C48766B71667D9EB9795EAC11E245D69665BC
46 |
47 | CRC32: 7D42B4D1
48 |
49 | ## Notice
50 |
51 | The program compiled with `Autoit3`.
52 |
53 | ## Test
54 |
55 | The test was passed when used following system:
56 | * Windows XP
57 | * Windows Vista
58 | * Windows 7
59 | * Windows 8
60 | * Windows 10
61 |
62 | ## Links
63 |
64 | [https://kn007.net/topics/batch-convert-silk-v3-audio-files-to-mp3-in-windows/](https://kn007.net/topics/batch-convert-silk-v3-audio-files-to-mp3-in-windows/)
65 |
66 | ## About
67 |
68 | [kn007's blog](https://kn007.net)
69 |
70 | ## Donate
71 |
72 | PayPal: kn007#126.com (Change # to @)
73 |
74 | Alipay: kn007#126.com (Change # to @)
75 |
76 | [More(Like Wechat, Tenpay, etc.)](https://kn007.net/donate/)
77 |
78 | ***
79 |
80 | ## 中文说明
81 | 解码silk v3音频文件（类似微信的amr和aud文件、QQ的slk文件）并转换为其他音频格式。
82 |
83 | 在Windows平台可用的应用程序。
84 |
85 | 支持批量转换。
86 |
87 | 支持将文件编码为silk v3音频文件（需要`silk_v3_encoder`），兼容QQ、微信。
88 |
89 | 支持转换微信小程序语音文件，可编码或解码。
90 |
91 | ## 依赖组件
92 |
93 | * silk_v3_decoder
94 | * lame
95 |
96 | ## 扩展组件
97 |
98 | * silk_v3_encoder （编码支持组件）
99 | * ffmpeg （注意：当使用FFmpeg时，LAME组件不再强制依赖）
100 |
101 | ## 如何使用
102 |
103 | 下载 `lame.exe`、`silk2mp3.exe`、`silk_v3_decoder.exe`后，直接运行`silk2mp3.exe`即可。
104 |
105 | [点击这里打包下载](https://dl.kn007.net/directlink/silk2mp3.zip "silk2mp3.zip")
106 |
107 | 需要扩展功能，请下载[扩展包](https://dl.kn007.net/directlink/silk2mp3-expansion.zip "silk2mp3-expansion.zip")。
108 |
109 | 你也可以通过下载[完整版](https://dl.kn007.net/directlink/silk2mp3-full.zip "silk2mp3-full.zip")，来得到更多的功能。
110 |
111 | ## 程序截图
112 |
113 | 
114 |
115 | [更多截图](/windows/screenshots/)
116 |
117 | ## 程序鉴定
118 |
119 | MD5: 5956F1AD437FD25F81BD31665F8FA1B6
120 |
121 | SHA1: A17C48766B71667D9EB9795EAC11E245D69665BC
122 |
123 | CRC32: 7D42B4D1
124 |
125 | ## 其他提示
126 |
127 | 该程序由`Autoit3`编译而成，个别小牌杀软可能会误报。
128 |
129 | ## 环境测试
130 |
131 | 于以下环境测试通过：
132 | * Windows XP
133 | * Windows Vista
134 | * Windows 7
135 | * Windows 8
136 | * Windows 10
137 |
138 | ## 相关链接
139 |
140 | [https://kn007.net/topics/batch-convert-silk-v3-audio-files-to-mp3-in-windows/](https://kn007.net/topics/batch-convert-silk-v3-audio-files-to-mp3-in-windows/)
141 |
142 | ## 关于作者
143 |
144 | [kn007的个人博客](https://kn007.net)
145 |
146 | ## 赞助作者
147 |
148 | PayPal：kn007#126.com (请将 # 改为 @)
149 |
150 | 支付宝：kn007#126.com (请将 # 改为 @)
151 |
152 | [其他方式(如微信支付、财付通等)](https://kn007.net/donate/)
153 |
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