├── .gitignore
├── .gitmodules
├── LICENSE
├── Makefile
├── README.md
├── mpegts
└── src
├── Application.cpp
├── Application.h
├── Config.hpp
├── DVBReceptor.cpp
├── DVBReceptor.h
├── Writer.cpp
└── Writer.h
/.gitignore:
--------------------------------------------------------------------------------
1 | release
2 | debug
3 | dvbjet
4 |
--------------------------------------------------------------------------------
/.gitmodules:
--------------------------------------------------------------------------------
1 | [submodule "syscpp"]
2 | path = syscpp
3 | url = https://github.com/lightful/syscpp.git
4 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation. If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 |
579 | If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
1 | ifeq ($(DEBUG), 1)
2 | BUILD_DIR := debug
3 | CXXFLAGS += -O0 -g3 -Wno-misleading-indentation -Wno-unknown-warning-option
4 | else
5 | BUILD_DIR := release
6 | CXXFLAGS += -O2
7 | endif
8 |
9 | PATH_BIN := dvbjet
10 |
11 | SRC_DIR := src
12 | INCLUDES := -Isyscpp/include
13 | LDLIBS := -lpthread
14 |
15 | include syscpp/posix.mk
16 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | ## DVB direct handling tools for Linux
2 |
3 | Easily handle DVB captures from the command line. In fact easier than using many fancy desktop apps.
4 | You can watch a channel while recording it, or any other received in the same frequency.
5 |
6 | ### 'mpegts' tool
7 |
8 | * Determine the TV channels in any recorded MPEG-TS file
9 | * Show detailed information from any channel
10 | * Play, save or compress a separate program (including all audio tracks and dvb subtitles)
11 | * Actually it is a foolproof ffmpeg frontend to obviate the need for tens of parameters.
12 | It requires the *ffmpeg* package (which provides ffmpeg, ffprobe and ffplay) and python 3.4+ installed.
13 |
14 | ### 'dvbjet' standalone DVB capture utility
15 |
16 | * Tunes your TV card and saves the full plain MPEG stream for the selected frecuency, as with a radio.
17 |
18 | * For example, the 60+ DVB-T channels in Madrid use only 9 frecuencies (482, 514, 570, 618, 698, 706, 746, 770 and 778 MHz).
19 | The frequency 770000000 carries *TVE1*, *TVE2*, *24H* and *Clan* TV channels (including standard and HD variants) plus a few radio stations:
20 |
21 | ```shell
22 | $ dvbjet output.mts 3=770000000
23 | ```
24 |
25 | * The generated file (standard MPEG-TS format) can be processed by the **mpegts** tool.
26 | The frequencies used in your city can be found in configuration files (e.g. channels.conf) or running tools like *w_scan*.
27 |
28 | * Besides the option number 3 shown here, all Linux DVB parameters are selectable by their standard ioctl system codes,
29 | instead of the multiple names used out there. Run *dvbjet* without options for more information.
30 | For example, outside Europe the option 5 may be required to setup the channel bandwidth.
31 |
32 | * There is an option to schedule the unattended starting/end recording time. Recording is reliable and no data is lost
33 | under high disk load; even a disk full may not cause overrun errors (if space is freed soon enough).
34 |
35 | * There aren't build dependencies, it only requires a non-Methuselah C++ compiler (circa 2013: gcc 4.8+ or clang)
36 | and the system headers package (*linux-api-headers* in Arch, *kernel-headers* in Fedora, *linux-libc-dev*
37 | in Ubuntu or *linux-glibc-devel* in Suse):
38 |
39 | ```shell
40 | $ git clone --recursive https://github.com/lightful/DVBdirect
41 | $ cd DVBdirect
42 | $ make
43 | ```
44 | Please, do not forget the *--recursive* option to download a required submodule (otherwise the build would fail).
45 |
--------------------------------------------------------------------------------
/mpegts:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python
2 | """
3 | mpegts v1.4 - Copyright (C) 2016 Ciriaco Garcia de Celis
4 | Utility to handle multiplexed MPEG-TS files captured from raw DVB sources
5 | """
6 | # This program is free software: you can redistribute it and/or modify
7 | # it under the terms of the GNU General Public License as published by
8 | # the Free Software Foundation, either version 3 of the License, or
9 | # (at your option) any later version.
10 | #
11 | # This program is distributed in the hope that it will be useful,
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 | # GNU General Public License for more details.
15 | #
16 | # You should have received a copy of the GNU General Public License
17 | # along with this program. If not, see .
18 |
19 | import os
20 | import stat
21 | import sys
22 | import subprocess
23 | import re
24 | import textwrap
25 | from datetime import timedelta
26 | from collections import OrderedDict, defaultdict
27 | from itertools import chain
28 |
29 | inputMode = os.fstat(sys.stdin.fileno()).st_mode
30 | fromStdin = stat.S_ISFIFO(inputMode) or stat.S_ISREG(inputMode)
31 | varg = 1 if fromStdin else 2
32 |
33 | if len(sys.argv) < varg:
34 | print(textwrap.indent(__doc__, ' ') + '\n'
35 | ' ' + os.path.basename(sys.argv[0]) + ' input.mts [channel [operation ...]]\n\n'
36 | ' channel (omit to list all channels):\n'
37 | ' "channel_name" or channel_ID\n\n'
38 | ' operation (omit to show the streams in the selected channel):\n'
39 | ' play [t0 [t1 [t2]] (reproduce the channel)\n'
40 | ' save output.ts [t0 [t1 [t2]] (extract channel; omits teletext)\n'
41 | ' save_ns output.ts [t0 [t1 [t2]] (also omits the subtitles)\n'
42 | ' compress output.mkv [t0 [t1 [t2]] (HQ vp9 encoding; with subtitles)\n'
43 | ' compress output.webm [t0 [t1 [t2]] (HQ vp9 encoding; subtitles lost)\n'
44 | ' compress output [t0 [t1 [t2]] (use .mkv if subtitles, or .webm)\n\n'
45 | ' t0: stream absolute start time in seconds (may be set to 0)\n'
46 | ' t1: crop absolute start time (t1-t0 = relative start): 0 by default\n'
47 | ' t2: crop absolute end time (t2-t1 = duration): stream end by default\n\n'
48 | ' Note: Input and/or output files must be omitted when redirection is used\n')
49 | sys.exit(1)
50 |
51 | inFile = '-' if fromStdin else sys.argv[1]
52 | probesize = '10M'
53 |
54 | proc = subprocess.Popen(['ffprobe',
55 | '-v', 'quiet',
56 | '-probesize', probesize,
57 | '-of', 'compact',
58 | '-show_programs', # also reports streams (without subtitles lang if -show_streams isn't set)
59 | '-show_streams', # this duplicates streams listing when -show_programs is set
60 | '-show_entries', 'format', # for duration (when not available per stream)
61 | '-' if fromStdin else 'file:' + inFile],
62 | stdout=subprocess.PIPE)
63 |
64 | channels = {}
65 | channelStreams = defaultdict(list)
66 | streams = {}
67 | lastChannelName = None
68 | nb_streams = 0
69 | fileDuration = None
70 |
71 | while True:
72 | input = proc.stdout.readline()
73 | if not input:
74 | break
75 | line = re.sub('\\x05|\\n', '', input.decode("utf-8"))
76 | if len(line) < 1:
77 | nb_streams = 0 # ffprobe bug in programs lookup with some files
78 | continue
79 | data = dict([(x.split('=') + [None])[:2] for x in line.split('|')])
80 | if 'format' in data:
81 | if 'duration' in data:
82 | fileDuration = data['duration'] if data['duration'] != 'N/A' else None
83 | elif 'program_id' in data:
84 | if nb_streams == 0:
85 | nb_streams = int(data['nb_streams'])
86 | if 'tag:service_name' in data:
87 | lastChannelName = data['tag:service_name'].lower()
88 | channels[lastChannelName] = data
89 | elif nb_streams > 0:
90 | nb_streams -= 1
91 | channelStreams[lastChannelName].append(data['index'])
92 | elif 'index' in data:
93 | streams[data['index']] = data
94 |
95 | proc.wait()
96 | if proc.returncode != 0:
97 | print('error reading', inFile)
98 | sys.exit(proc.returncode)
99 |
100 | channelName = sys.argv[varg] if len(sys.argv) > varg and len(channelStreams) > 0 else None
101 |
102 | if len(channelStreams) == 0:
103 | varg = varg - 1
104 |
105 | if channels and not channelName:
106 | longestChannel = max(len(x) for x in channels)
107 | sortedChannels = OrderedDict(sorted(channels.items(), key=lambda i: i[0].casefold()))
108 | for channel in sortedChannels.values():
109 | channelName = channel['tag:service_name']
110 | nameTellsProvider = re.match(channel['tag:service_provider'], channelName, re.IGNORECASE)
111 | print('ID {0:>5} ({1:>2} streams) {2:{3}}{4}'.format(
112 | channel['program_id'],
113 | channel['nb_streams'],
114 | channelName, longestChannel,
115 | '' if nameTellsProvider else ' (%s)' % channel['tag:service_provider']
116 | ))
117 | sys.exit(0)
118 |
119 | if channelName and channelName.isnumeric():
120 | channelName = dict(((prop['program_id'], prop['tag:service_name'])
121 | for name, prop in channels.items())).get(channelName, channelName)
122 |
123 | videoPids = []
124 | audioPids = []
125 | subtitlePids = []
126 |
127 | showStreams = not len(sys.argv) > varg + 1
128 |
129 | if channelName and channelName.lower() not in channelStreams:
130 | print('channel "%s" not found' % channelName)
131 | sys.exit(1)
132 | else:
133 | if channelName and showStreams:
134 | print(channelName)
135 | for streamId in (channelStreams[channelName.lower()] if channelName else streams.keys()):
136 | stream = streams[streamId]
137 | if 'codec_type' not in stream:
138 | continue
139 | isUnknown = stream['codec_type'] == 'unknown'
140 | isVideo = stream['codec_type'] == 'video'
141 | isAudio = stream['codec_type'] == 'audio'
142 | isImpaired = 'disposition:visual_impaired' in stream and stream['disposition:visual_impaired'] == '1'
143 | if isUnknown or (isAudio and isImpaired):
144 | continue
145 | pid = None if 'id' not in stream or stream['id'] == 'N/A' else stream['id']
146 | if showStreams:
147 | duration = stream['duration'] if 'duration' in stream and stream['duration'] != 'N/A' else None
148 | if not duration and (isVideo or isAudio):
149 | duration = fileDuration
150 | print("{0} {1}={2} {3:4} [{4}]".format(
151 | stream['codec_type'],
152 | 'PID' if pid else 'IDX',
153 | pid if pid else stream['index'],
154 | stream['codec_name'],
155 | "{:0>8}".format(str(timedelta(seconds=int(float(duration))))) if duration else 'N/A'),
156 | end=' ')
157 | if isVideo:
158 | if pid:
159 | videoPids.append(pid)
160 | if showStreams:
161 | print(stream['width'] + 'x' + stream['height'],
162 | '' if 'display_aspect_ratio' not in stream else stream['display_aspect_ratio'])
163 | elif isAudio:
164 | if pid:
165 | audioPids.append(pid)
166 | if showStreams:
167 | print('' if 'tag:language' not in stream else '(%s)' % stream['tag:language'],
168 | '' if 'channel_layout' not in stream else stream['channel_layout'],
169 | '' if 'channels' not in stream else stream['channels'],
170 | '' if 'bit_rate' not in stream else stream['bit_rate'])
171 | elif stream['codec_type'] == 'subtitle':
172 | if pid and 'dvbsub' in stream['codec_name'].replace('_', ''):
173 | subtitlePids.append(pid)
174 | if showStreams:
175 | print('' if 'tag:language' not in stream else '(%s)' % stream['tag:language'])
176 |
177 | if showStreams:
178 | sys.exit(0)
179 |
180 | operation = sys.argv[varg + 1].lower()
181 | isPlay = operation == 'play'
182 | isSave = operation == 'save' or operation == 'save_ns'
183 | isCompress = operation == 'compress'
184 |
185 | if operation == 'save_ns':
186 | subtitlePids = []
187 |
188 |
189 | def seek(argc, opt):
190 | return [] if len(sys.argv) <= argc else \
191 | [opt, str(float(sys.argv[argc]) - float(sys.argv[argc - 1]))]
192 |
193 | if isPlay:
194 | cmd = ['ffplay']
195 | if len(videoPids) > 0 or len(audioPids) > 0:
196 | cmd.extend(['-vst', 'i:' + videoPids[0]] if len(videoPids) > 0 else ['-vn', '-nodisp'])
197 | cmd.extend(['-ast', 'i:' + audioPids[0]] if len(audioPids) > 0 else ['-an'])
198 | cmd.append('-sn')
199 | cmd.extend(seek(varg + 3, '-ss'))
200 | cmd.extend(seek(varg + 4, '-t'))
201 | cmd.append('-' if fromStdin else 'file:' + inFile)
202 | elif (isSave or isCompress):
203 | toStdout = len(sys.argv) < varg + 3
204 | if toStdout:
205 | outputMode = os.fstat(sys.stdout.fileno()).st_mode
206 | if not (stat.S_ISFIFO(outputMode) or stat.S_ISREG(outputMode)): # if output not redirected
207 | print('missing output file argument')
208 | sys.exit(1)
209 | output, ext = ('-', '')
210 | else:
211 | output, ext = os.path.splitext(sys.argv[varg + 2])
212 | ext = ext.lower()
213 | if isCompress and ext != '.mkv' and ext != '.webm':
214 | ext = '.mkv' if len(subtitlePids) > 0 else '.webm'
215 | varg += 1
216 | cmd = ['ffmpeg']
217 | cmd.extend(['-probesize', probesize])
218 | cmd.extend(['-i', '-' if fromStdin else 'file:' + inFile])
219 | cmd.extend(seek(varg + 3, '-ss'))
220 | cmd.extend(seek(varg + 4, '-t'))
221 | for pid in chain(videoPids, audioPids, subtitlePids):
222 | cmd.append('-map')
223 | cmd.append('i:' + pid)
224 | if isSave:
225 | cmd.extend(['-c', 'copy'])
226 | else:
227 | cmd.extend(['-threads', str(2 if sys.version_info < (3, 4) else os.cpu_count())])
228 | cmd.extend(['-c:v', 'libvpx-vp9', # perceptually betters h265 at high compression
229 | '-crf', '32', '-b:v', '2.5M', # very high (but constrained) quality
230 | '-g', '300']) # proper seek in some players
231 | if ext == '.webm':
232 | cmd.extend(['-c:a', 'libopus', '-b:a', '96k']) # webm requirement and much better than mp3
233 | cmd.extend(['-sn'])
234 | else:
235 | cmd.extend(['-c:a', 'copy'])
236 | cmd.extend(['-c:s', 'copy'])
237 | os.nice(19)
238 | if toStdout:
239 | cmd.extend(['-f', 'mpegts' if isSave else 'matroska', '-'])
240 | else:
241 | if fromStdin:
242 | cmd.append('-y')
243 | cmd.append('file:' + output + ext)
244 | else:
245 | print('unknown operation "%s"' % operation)
246 | sys.exit(1)
247 |
248 | retcode = subprocess.call(cmd)
249 |
250 | if retcode != 0:
251 | sys.exit(retcode)
252 | else:
253 | if (isSave or isCompress) and not (fromStdin or toStdout):
254 | finf = os.stat(inFile)
255 | os.utime(output + ext, (finf.st_atime, finf.st_mtime))
256 | sys.exit(0)
257 |
--------------------------------------------------------------------------------
/src/Application.cpp:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include "Application.h"
25 |
26 | int main(int argc, char** argv)
27 | {
28 | return Application::run(argc, argv);
29 | }
30 |
31 | void Application::onStart()
32 | {
33 | if (argc <= 2)
34 | {
35 | std::cout
36 | << std::endl
37 | << " dvbjet v1.0 - Copyright (C) 2016 Ciriaco Garcia de Celis" << std::endl
38 | << " Utility to capture multiplexed MPEG-TS files from raw DVB sources" << std::endl
39 | << std::endl
40 | << " Usage: " << argv[0] << " output.mts 3=frequency_value [OPTION=value]..." << std::endl
41 | << std::endl
42 | << " - By default option 5 (DTV_BANDWIDTH_HZ) is set to 8000000 (8 MHz) used in Europe" << std::endl
43 | << " - Many cards then only need the option 3 (DTV_FREQUENCY) to tune and receive data" << std::endl
44 | << " - Frequencies can be found e.g. in channels.conf (or using the 'w_scan' utility)" << std::endl
45 | << std::endl
46 | << " Device number selection (all default to 0):" << std::endl
47 | << " adapter=A for /dev/dvb/adapterA" << std::endl
48 | << " frontend=B for /dev/dvb/adapterA/frontendB" << std::endl
49 | << " demux=C for /dev/dvb/adapterA/demuxC" << std::endl
50 | << " dvr=D for /dev/dvb/adapterA/dvrD" << std::endl
51 | << " Recording options:" << std::endl
52 | << " start=HH:MM (current moment if omitted)" << std::endl
53 | << " end=HH:MM (until application is killed if omitted)" << std::endl
54 | << " pids=N1,N2,... (using decimal, hexadecimal or octal numbers; by default all PIDs)" << std::endl
55 | << std::endl
56 | << " Terrestrial and Satellite options (always numeric):" << std::endl
57 | << " 17 (DTV_DELIVERY_SYSTEM), 3 (DTV_FREQUENCY), 6 (DTV_INVERSION), 4 (DTV_MODULATION)" << std::endl
58 | << " Terrestrial-only options:" << std::endl
59 | << " 5 (DTV_BANDWIDTH_HZ), 36 (DTV_CODE_RATE_HP), 37 (DTV_CODE_RATE_LP)," << std::endl
60 | << " 39 (DTV_TRANSMISSION_MODE), 38 (DTV_GUARD_INTERVAL), 40 (DTV_HIERARCHY)" << std::endl
61 | << " Satellite-only options:" << std::endl
62 | << " 8 (DTV_SYMBOL_RATE), 9 (DTV_INNER_FEC), 12 (DTV_PILOT), 13 (DTV_ROLLOFF)" << std::endl
63 | << std::endl
64 | << " See:" << std::endl
65 | << " https://kernel.org/doc/html/latest/media/uapi/dvb/frontend-property-terrestrial-systems.html" << std::endl
66 | << " https://kernel.org/doc/html/latest/media/uapi/dvb/frontend-property-satellite-systems.html" << std::endl
67 | << " Note: use the enumeration values, never the names (see /usr/include/linux/dvb/frontend.h)" << std::endl
68 | << " Note: DVB-T channels.conf (mplayer) indicates (in this order) 3:6:5:36:37:4:39:38:40" << std::endl
69 | << std::endl;
70 | stop(1);
71 | }
72 | else try
73 | {
74 | int32_t start = -1, end = -1;
75 | config = std::make_shared();
76 | config->outputFile = argv[1];
77 | for (int i = 2; i < argc; i++)
78 | {
79 | std::string option(argv[i]);
80 | auto eq = option.find("=");
81 | if ((eq == std::string::npos) || (eq == 0)) throw std::runtime_error("bad argument '" + option + "'");
82 | std::string code = option.substr(0, eq);
83 | std::string value = option.substr(eq+1);
84 | if (code == "adapter")
85 | { if (!(std::stringstream(value) >> config->adapter)) throw std::runtime_error("bad adapter number"); }
86 | else if (code == "frontend")
87 | { if (!(std::stringstream(value) >> config->frontend)) throw std::runtime_error("bad frontend number"); }
88 | else if (code == "demux")
89 | { if (!(std::stringstream(value) >> config->demux)) throw std::runtime_error("bad demux number"); }
90 | else if (code == "dvr")
91 | { if (!(std::stringstream(value) >> config->dvr)) throw std::runtime_error("bad dvr number"); }
92 | else if ((code == "start") || (code == "end"))
93 | {
94 | std::stringstream ph(value);
95 | int hh, mm;
96 | char delim = 0;
97 | if (!(ph >> hh)) hh = -1;
98 | ph >> delim;
99 | if (!(ph >> mm)) mm = -1;
100 | if ((hh < 0) || (hh > 23) || (mm < 0) || (mm > 59) || (delim != ':')) throw std::runtime_error("bad time");
101 | (code == "start"? start : end) = hh * 3600 + mm * 60;
102 | }
103 | else if (code == "pids")
104 | {
105 | std::istringstream pids(value);
106 | std::string pid;
107 | while (std::getline(pids, pid, ','))
108 | {
109 | char *pend = nullptr;
110 | auto pv = std::strtol(pid.c_str(), &pend, 0); // allows any base (std::ios::hex not even sets failbit!)
111 | if (*pend || (pv < 0) || (pv > 65535)) throw std::runtime_error("bad pid '" + pid + "'");
112 | config->pids.emplace_back(uint16_t(pv));
113 | }
114 | }
115 | else // numeric property
116 | {
117 | Config::Property p;
118 | if (!(std::stringstream(code) >> p.code)) throw std::runtime_error("bad code '" + code + "'");
119 | if (!(std::stringstream(value) >> p.value)) throw std::runtime_error("bad value '" + value + "'");
120 | config->properties.emplace_back(p);
121 | }
122 | }
123 |
124 | auto seconds = std::time(nullptr);
125 | struct tm* tmm = std::localtime(&seconds);
126 | auto nowIs = tmm->tm_hour * 3600 + tmm->tm_min * 60 + tmm->tm_sec;
127 |
128 | if ((start >= 0) && (start < nowIs)) start = nowIs - start > 59? start + 86400 : -1; // likely the user intention
129 | if ((end >= 0) && (end < nowIs)) end += 86400;
130 | if ((end >= 0) && (start >= 0) && (end < start)) end += 86400;
131 |
132 | timerStart(true, std::chrono::seconds(start < 0? 0 : start - nowIs));
133 | if (end >= 0) timerStart(false, std::chrono::seconds(end - nowIs));
134 | }
135 | catch (const std::runtime_error& err)
136 | {
137 | std::cerr << "ERROR: " << err.what() << std::endl;
138 | stop(2);
139 | }
140 | }
141 |
142 | template <> void Application::onMessage(DVBFatal&)
143 | {
144 | dvbReceptor.reset();
145 | stop(3);
146 | }
147 |
148 | template <> void Application::onTimer(const bool& isStart)
149 | {
150 | if (isStart)
151 | {
152 | dvbReceptor = DVBReceptor::create(shared_from_this());
153 | dvbReceptor->send(config);
154 | }
155 | else
156 | {
157 | dvbReceptor.reset();
158 | stop(0);
159 | }
160 | }
161 |
--------------------------------------------------------------------------------
/src/Application.h:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef APPLICATION_H
20 | #define APPLICATION_H
21 |
22 | #include
23 | #include "Config.hpp"
24 | #include "DVBReceptor.h"
25 |
26 | class Application : public ActorThread
27 | {
28 | friend ActorThread;
29 |
30 | Application(int cmdArgc, char** cmdArgv) : argc(cmdArgc), argv(cmdArgv) {}
31 |
32 | void onStart();
33 |
34 | template void onMessage(Any&);
35 | template void onTimer(const Any&);
36 |
37 | const int argc;
38 | char** const argv;
39 |
40 | std::shared_ptr config;
41 | DVBReceptor::ptr dvbReceptor;
42 | };
43 |
44 | #endif /* APPLICATION_H */
45 |
--------------------------------------------------------------------------------
/src/Config.hpp:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef CONFIG_HPP
20 | #define CONFIG_HPP
21 |
22 | #include
23 | #include
24 | #include
25 | #include
26 |
27 | struct Config
28 | {
29 | struct Property
30 | {
31 | uint32_t code;
32 | uint32_t value;
33 | };
34 |
35 | Config() : adapter(0), frontend(0), demux(0), dvr(0) {}
36 | uint32_t adapter;
37 | uint32_t frontend;
38 | uint32_t demux;
39 | uint32_t dvr;
40 | std::string outputFile;
41 | std::list properties;
42 | std::list pids;
43 | };
44 |
45 | #endif /* CONFIG_HPP */
46 |
--------------------------------------------------------------------------------
/src/DVBReceptor.cpp:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 |
23 | #include
24 | #include
25 | #include
26 | #include
27 |
28 | #include
29 | #include
30 | #include
31 | #include
32 | #include "Config.hpp"
33 | #include "Application.h"
34 | #include "DVBReceptor.h"
35 |
36 | #define BUFFER_SIZE 65536 // about 26 milliseconds worth of data
37 |
38 | template <> void DVBReceptor::onMessage(std::shared_ptr& config)
39 | {
40 | writer->send(config);
41 |
42 | frontend_fd = open(VA_STR("/dev/dvb/adapter" << config->adapter << "/frontend" << config->frontend).c_str(), O_RDWR);
43 |
44 | if (frontend_fd < 0)
45 | {
46 | fatalProblem("FATAL: error opening frontend");
47 | return;
48 | }
49 |
50 | struct dtv_property cmdv;
51 | memset(&cmdv, 0, sizeof(dtv_property));
52 | cmdv.cmd = DTV_API_VERSION;
53 | struct dtv_properties cmdvseq = { 1, &cmdv };
54 | if (ioctl(frontend_fd, FE_GET_PROPERTY, &cmdvseq) < 0)
55 | {
56 | fatalProblem("FATAL: DVB driver doesn't support DVB API v5");
57 | return;
58 | }
59 |
60 | auto avoidable = [](const Config::Property& x) { return (x.code == DTV_CLEAR) || (x.code == DTV_TUNE); };
61 | std::remove_if(config->properties.begin(), config->properties.end(), avoidable);
62 |
63 | auto findbw = [](const Config::Property& x) { return (x.code == DTV_BANDWIDTH_HZ); };
64 |
65 | if (std::find_if(config->properties.begin(), config->properties.end(), findbw) == config->properties.end())
66 | config->properties.push_back({ DTV_BANDWIDTH_HZ, 8000000 }); // default value
67 |
68 | config->properties.push_front({ DTV_CLEAR, DTV_UNDEFINED }); // ensured only at the beginning
69 | config->properties.push_back({ DTV_TUNE, DTV_UNDEFINED }); // ensured only at the end
70 |
71 | struct dtv_property* cmds = new dtv_property[config->properties.size()];
72 | memset(cmds, 0, sizeof(dtv_property) * config->properties.size());
73 | struct dtv_properties cmdseq = { 0, cmds };
74 |
75 | for (const auto& property : config->properties)
76 | {
77 | cmds[cmdseq.num].cmd = property.code;
78 | cmds[cmdseq.num].u.data = property.value;
79 | cmdseq.num++;
80 | }
81 |
82 | bool badConfigure = ioctl(frontend_fd, FE_SET_PROPERTY, &cmdseq) < 0;
83 | delete []cmds;
84 |
85 | if (badConfigure)
86 | {
87 | fatalProblem("FATAL: error configuring frontend");
88 | return;
89 | }
90 |
91 | fe_status_t fe_status;
92 | for (int i = 1; i < 120; i++)
93 | {
94 | ioctl(frontend_fd, FE_READ_STATUS, &fe_status );
95 | if (fe_status & FE_HAS_LOCK) break;
96 | std::this_thread::sleep_for(std::chrono::milliseconds(25));
97 | }
98 |
99 | if (!(fe_status & FE_HAS_LOCK))
100 | {
101 | fatalProblem("FATAL: could not tune", ETIMEDOUT);
102 | return;
103 | }
104 |
105 | if (config->pids.empty()) config->pids.emplace_back(0x2000); // "wildcard" PID (full MPEG stream)
106 |
107 | for (auto pid : config->pids)
108 | {
109 | int demux_fd = open(VA_STR("/dev/dvb/adapter" << config->adapter << "/demux" << config->demux).c_str(), O_RDWR);
110 |
111 | if (demux_fd < 0)
112 | {
113 | fatalProblem("FATAL: error opening demux");
114 | return;
115 | }
116 |
117 | demux_fds.emplace_back(demux_fd);
118 |
119 | dmx_pes_filter_params pesfilter;
120 | pesfilter.pid = pid;
121 | pesfilter.input = DMX_IN_FRONTEND;
122 | pesfilter.output = DMX_OUT_TS_TAP;
123 | pesfilter.pes_type = DMX_PES_OTHER;
124 | pesfilter.flags = DMX_IMMEDIATE_START;
125 |
126 | if (ioctl(demux_fd, DMX_SET_PES_FILTER, &pesfilter) < 0)
127 | {
128 | fatalProblem("FATAL: error configuring demux");
129 | return;
130 | }
131 | }
132 |
133 | dvr_fd = open(VA_STR("/dev/dvb/adapter" << config->adapter << "/dvr" << config->dvr).c_str(), O_RDONLY);
134 |
135 | if (dvr_fd < 0)
136 | {
137 | fatalProblem("FATAL: error opening dvr");
138 | return;
139 | }
140 |
141 | timerStart(true, std::chrono::seconds(0), TimerCycle::Periodic); // indefinite reception loop
142 | }
143 |
144 | template <> void DVBReceptor::onTimer(const bool&)
145 | {
146 | auto buffer = std::make_shared(BUFFER_SIZE);
147 | auto bytes = read(dvr_fd, buffer->data, buffer->size);
148 |
149 | if (bytes <= 0) fatalProblem("error receiving data");
150 | else
151 | {
152 | buffer->setLength(bytes);
153 | writer->send(buffer);
154 | }
155 | }
156 |
157 | void DVBReceptor::onStop()
158 | {
159 | writer->waitIdle();
160 | app.reset();
161 | }
162 |
163 | void DVBReceptor::fatalProblem(const char* subject, int unknownError)
164 | {
165 | std::string problem = strerror(errno? errno : unknownError);
166 | writer->send(Notif { subject, VA_STR(": " << problem) });
167 | app->send(DVBFatal{});
168 | timerStop(true);
169 | }
170 |
--------------------------------------------------------------------------------
/src/DVBReceptor.h:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef DVBRECEPTOR_H
20 | #define DVBRECEPTOR_H
21 |
22 | #include
23 | #include
24 | #include
25 | #include "Writer.h"
26 |
27 | struct DVBFatal {};
28 |
29 | class DVBReceptor : public ActorThread
30 | {
31 | friend ActorThread;
32 |
33 | DVBReceptor(const std::shared_ptr& parent) : app(parent), writer(Writer::create()) {}
34 |
35 | template void onMessage(Any&);
36 | template void onTimer(const Any&);
37 |
38 | void onStop();
39 |
40 | void fatalProblem(const char* subject, int unknownError = EINVAL);
41 |
42 | ActorThread::ptr app;
43 |
44 | Writer::ptr writer;
45 |
46 | int frontend_fd;
47 | std::list demux_fds;
48 | int dvr_fd;
49 | };
50 |
51 | #endif /* DVBRECEPTOR_H */
52 |
--------------------------------------------------------------------------------
/src/Writer.cpp:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #include
20 | #include
21 | #include
22 | #include
23 | #include
24 | #include
25 | #include
26 | #include "Config.hpp"
27 | #include "Writer.h"
28 |
29 | #define NOTIF_FREQ 5 // seconds
30 |
31 | template <> void Writer::onMessage(std::shared_ptr& config)
32 | {
33 | outputFile = config->outputFile;
34 | timerStart(true, std::chrono::seconds(NOTIF_FREQ), TimerCycle::Periodic);
35 | }
36 |
37 | template <> void Writer::onMessage(std::shared_ptr& buffer)
38 | {
39 | bool written = false;
40 |
41 | if ((fd < 0) && !outputFile.empty())
42 | {
43 | if ((fd = open(outputFile.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_APPEND, 0664)) < 0)
44 | {
45 | std::string problem = strerror(errno);
46 | writeNotif({ "open error", VA_STR(": " << problem << " for '" << outputFile << "'") });
47 | inError = true;
48 | }
49 | }
50 |
51 | if (fd >= 0)
52 | {
53 | auto bytes = write(fd, buffer->start(), buffer->length());
54 | written = (bytes == (decltype(bytes)) buffer->length());
55 | if (!written)
56 | {
57 | inError = true;
58 | std::string problem = strerror(errno);
59 | writeNotif({ "write error", VA_STR(": " << problem << char(7)) }); // disk full?
60 | if (bytes > 0) buffer->advance(bytes);
61 | }
62 | else if (inError)
63 | {
64 | inError = false;
65 | onTimer(true);
66 | writeNotif({ "error recovered", " - no data lost" });
67 | }
68 | }
69 |
70 | if (!written)
71 | {
72 | if (buffer->size * pendingMessages() < 786432000) throw DispatchRetry(); // less than 750 Mb (5 minutes)
73 | writeNotif({ "buffer overrun", " - discarding data" });
74 | }
75 | }
76 |
77 | template <> void Writer::onMessage(Notif& notif) // errors from other threads
78 | {
79 | writeNotif(notif);
80 | }
81 |
82 | void Writer::writeNotif(const Notif& notif)
83 | {
84 | auto nowIs = std::chrono::steady_clock::now();
85 | auto pnotif = notifications.find(notif);
86 | bool print = pnotif == notifications.end();
87 | if (!print)
88 | {
89 | if (nowIs - pnotif->second > std::chrono::seconds(NOTIF_FREQ))
90 | {
91 | notifications.erase(pnotif);
92 | print = true;
93 | }
94 | }
95 | if (print)
96 | {
97 | notifications.emplace(notif, nowIs);
98 | if (write(STDERR_FILENO, notif.subject.c_str(), notif.subject.length())) {}
99 | if (write(STDERR_FILENO, notif.msg.c_str(), notif.msg.length())) {}
100 | if (write(STDERR_FILENO, "\n", 1)) {}
101 | }
102 | }
103 |
104 | void Writer::onTimer(const bool&)
105 | {
106 | std::size_t undispatched = pendingMessages();
107 |
108 | if (dispatchBusy && (undispatched < 3))
109 | {
110 | writeNotif({ "queue ok", " - no data pending to write" });
111 | dispatchBusy = false;
112 | }
113 |
114 | if (undispatched > 100)
115 | {
116 | dispatchBusy = true;
117 | writeNotif({ "queue warning", VA_STR(": pending to write (" << undispatched << " messages)") });
118 | }
119 | }
120 |
--------------------------------------------------------------------------------
/src/Writer.h:
--------------------------------------------------------------------------------
1 | /*
2 | * DVB Jet - Utility to capture multiplexed MPEG-TS files from raw DVB sources
3 | * Copyright 2016 Ciriaco Garcia de Celis
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * (at your option) any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | #ifndef WRITER_H
20 | #define WRITER_H
21 |
22 | #include
23 | #include
24 | #include
25 | #include