├── LICENSE ├── Makefile ├── README.md ├── camera-control.png └── camera-ctl.c /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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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 | 2 | PKGS := ncursesw 3 | CC := gcc 4 | PKG_CONFIG ?= pkg-config 5 | CFLAGS := -W -Wall -g -O3 $(shell $(PKG_CONFIG) --cflags $(PKGS)) 6 | LDFLAGS := $(shell $(PKG_CONFIG) --libs $(PKGS)) 7 | AS := as 8 | ASFLAGS := -gdbb --32 9 | PROGS := camera-ctl 10 | 11 | .PHONY: all clean 12 | 13 | all: $(PROGS) 14 | 15 | clean: 16 | $(RM) *.o $(PROGS) 17 | 18 | %.o: %.c 19 | $(CC) $(CFLAGS) -c $^ -o $@ 20 | 21 | %.o: %.s 22 | $(AS) $(ASFLAGS) $^ -o $@ 23 | 24 | camera-ctl: camera-ctl.o 25 | $(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@ 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # camera-control 2 | 3 | ![camera-control](camera-control.png) 4 | 5 | ## Info 6 | Simple command-line application for controlling camera settings. 7 | 8 | Based on source code posted by AlexOD42 at [https://github.com/showmewebcam/showmewebcam/issues/56](https://github.com/showmewebcam/showmewebcam/issues/56) 9 | 10 | 11 | ## Dependencies 12 | ```sh 13 | sudo apt-get install libncurses5-dev libncursesw5-dev 14 | ``` 15 | 16 | ## Compilation 17 | ``` 18 | make 19 | ``` 20 | 21 | ## How to use 22 | ``` 23 | Usage: 24 | Available options are 25 | -a Load preset files in alphabetical order 26 | -c file Path to config file 27 | -d Disable unsupported controls 28 | -f fps Maximum FPS value (b/w 1 and 120, default: 30) 29 | -h Print this help screen and exit 30 | -i control_variable Ignore control with defined variable name 31 | -l List available controls 32 | -p path Path to directory with preset files 33 | -v device V4L2 Video Capture device 34 | 35 | # default config file - /boot/camera.txt 36 | # default v4l2 device - /dev/video0 37 | ``` 38 | 39 | ### Run 40 | ``` 41 | ./camera-ctl 42 | 43 | # List control variables 44 | ./camera-ctl -l 45 | 46 | # Ignore selected controls by their variable name 47 | ./camera-ctl -i h264_i_frame_period -i h264_profile -i h264_level 48 | 49 | ``` 50 | 51 | ### Using preset files 52 | Loading of settings from presets files. Preset file name must start with number between 1 and 9. 53 | Example: 54 | /path/presets/1-day 55 | /path/presets/2-night 56 | /path/presets/3-fluorescent-lamp 57 | etc. 58 | 59 | Switching between presets is performed via the keyboard keys from 1 to 9 and key. 60 | 61 | ``` 62 | ./camera-ctl -p /path/presets 63 | ``` 64 | 65 | ### User interface 66 | |keyboard key|action| 67 | |:-----------|:-----| 68 | |Up|Previous item| 69 | |Down|Next item| 70 | |Home|First item| 71 | |End|Last item| 72 | |Left|Decrease value by one step| 73 | |Right|Increase value by one step| 74 | |PgDn|Decrease value by ten steps| 75 | |PgUp|Increase value by ten steps| 76 | |R|Reset all items| 77 | |D|Set default value for current item| 78 | |N|Set minimum value for current item| 79 | |M|Set maximum value for current item| 80 | |L|Load settings from config file| 81 | |S|Save settings to config file| 82 | |Q|Quit application| 83 | |U|Get actual values from a video device| 84 | |1|Load preset file 1| 85 | |2|Load preset file 2| 86 | |3|Load preset file 3| 87 | |4|Load preset file 4| 88 | |5|Load preset file 5| 89 | |6|Load preset file 6| 90 | |7|Load preset file 7| 91 | |8|Load preset file 8| 92 | |9|Load preset file 9| 93 | |Tab|Switch between preset files| 94 | -------------------------------------------------------------------------------- /camera-control.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/peterbay/camera-control/635f2cbb1dfb34bbcb186965c4ed8fee075fe63d/camera-control.png -------------------------------------------------------------------------------- /camera-ctl.c: -------------------------------------------------------------------------------- 1 | /* 2 | * camera-ctl / v4l2 camera control 3 | * 4 | * Petr Vavrin (peterbay) pvavrin@gmail.com 5 | * https://github.com/peterbay 6 | * 7 | * AlexOD42 https://github.com/AlexOD42 8 | * firt idea and application skeleton 9 | * 10 | * Based on this issue https://github.com/showmewebcam/showmewebcam/issues/56 11 | * 12 | * This program is free software: you can redistribute it and/or modify 13 | * it under the terms of the GNU General Public License as published by 14 | * the Free Software Foundation, either version 3 of the License, or 15 | * (at your option) any later version. 16 | * 17 | * This program is distributed in the hope that it will be useful, 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 | * GNU General Public License for more details. 21 | * 22 | * You should have received a copy of the GNU General Public License 23 | * along with this program. If not, see . 24 | */ 25 | 26 | #include 27 | #include 28 | #include 29 | #include 30 | #include 31 | #include 32 | #include 33 | #include 34 | #include 35 | #include 36 | #include 37 | #include 38 | #include 39 | #include 40 | 41 | #define DEBUG false 42 | 43 | #define pixfmtstr(x) (x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, ((x) >> 24) & 0xff 44 | 45 | #define clamp(val, min, max) \ 46 | ({ \ 47 | typeof(val) __val = (val); \ 48 | typeof(min) __min = (min); \ 49 | typeof(max) __max = (max); \ 50 | (void)(&__val == &__min); \ 51 | (void)(&__val == &__max); \ 52 | __val = __val < __min ? __min : __val; \ 53 | __val > __max ? __max : __val; \ 54 | }) 55 | 56 | struct control_option 57 | { 58 | int index; 59 | int value; 60 | char *name; 61 | } control_option; 62 | 63 | enum control_entry_type 64 | { 65 | V4L2_CONTROL, 66 | V4L2_PARAM, 67 | }; 68 | 69 | struct control_mapping 70 | { 71 | int entry_type; 72 | unsigned int id; 73 | char *name; 74 | char *var_name; 75 | unsigned int control_type; 76 | int value; 77 | int minimum; 78 | int maximum; 79 | int step; 80 | int default_value; 81 | bool hasoptions; 82 | struct control_option *options; 83 | } control_mapping; 84 | 85 | const char *ignored_variables[50]; 86 | int last_ignored_variable = 0; 87 | 88 | static bool list_controls = false; 89 | static bool disable_unsupported_controls = false; 90 | 91 | volatile sig_atomic_t terminate = 0; 92 | static struct control_mapping *ctrl_mapping; 93 | static char *config_file = "/boot/camera.txt"; 94 | static char *v4l2_devname = "/dev/video0"; 95 | static unsigned int v4l2_dev_pixelformat; 96 | static unsigned int v4l2_dev_width; 97 | static unsigned int v4l2_dev_height; 98 | static int last_offset = 0; 99 | static int ctrl_last = 0; 100 | static int v4l2_dev_fd; 101 | static bool ui_initialized = false; 102 | static int active_control = 0; 103 | static int fps_max = 30; 104 | 105 | struct preset 106 | { 107 | char *path; 108 | char *name; 109 | }; 110 | static char *presets_path = NULL; 111 | static struct preset presets[10] = { 112 | {NULL, NULL}, 113 | {NULL, NULL}, 114 | {NULL, NULL}, 115 | {NULL, NULL}, 116 | {NULL, NULL}, 117 | {NULL, NULL}, 118 | {NULL, NULL}, 119 | {NULL, NULL}, 120 | {NULL, NULL}, 121 | {NULL, NULL}, 122 | }; 123 | static int last_preset_loaded = -1; 124 | static bool preset_alpabetically = false; 125 | static int alpha_index = 0; 126 | 127 | struct window_dimensions 128 | { 129 | int top; 130 | int left; 131 | int cols; 132 | int rows; 133 | }; 134 | 135 | struct window_dimensions top_dim = {0, 0, 0, 0}; 136 | struct window_dimensions menu_dim = {0, 0, 0, 0}; 137 | struct window_dimensions control_dim = {0, 0, 0, 0}; 138 | struct window_dimensions help_dim = {0, 0, 0, 0}; 139 | 140 | WINDOW *top_win; 141 | WINDOW *menu_win; 142 | WINDOW *control_win; 143 | WINDOW *help_win; 144 | 145 | void term(int signum) 146 | { 147 | (void)(signum); /* avoid warning: unused parameter 'signum' */ 148 | terminate = true; 149 | } 150 | 151 | static int v4l2_open(char *devname) 152 | { 153 | struct v4l2_capability cap; 154 | 155 | v4l2_dev_fd = open(devname, O_RDWR | O_NONBLOCK, 0); 156 | if (v4l2_dev_fd == -1) 157 | { 158 | printf("ERROR: Device open failed: %s (%d)\n", strerror(errno), errno); 159 | return -EINVAL; 160 | } 161 | 162 | if (ioctl(v4l2_dev_fd, VIDIOC_QUERYCAP, &cap) < 0) 163 | { 164 | printf("ERROR: VIDIOC_QUERYCAP failed: %s (%d)\n", strerror(errno), errno); 165 | goto err; 166 | } 167 | 168 | if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) 169 | { 170 | printf("ERROR: %s is no video capture device\n", devname); 171 | goto err; 172 | } 173 | return 1; 174 | 175 | err: 176 | close(v4l2_dev_fd); 177 | return -EINVAL; 178 | } 179 | 180 | static void v4l2_close() 181 | { 182 | if (v4l2_dev_fd) 183 | { 184 | close(v4l2_dev_fd); 185 | } 186 | } 187 | 188 | static int v4l2_fps_get() 189 | { 190 | static struct v4l2_streamparm parm; 191 | struct v4l2_fract *tf; 192 | memset(&parm, 0, sizeof(parm)); 193 | 194 | parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 195 | 196 | if (ioctl(v4l2_dev_fd, VIDIOC_G_PARM, &parm) == 0) 197 | { 198 | tf = &parm.parm.capture.timeperframe; 199 | 200 | if (!tf->denominator || !tf->numerator) 201 | { 202 | return 0; 203 | } 204 | else 205 | { 206 | return (int)(1.0 * tf->denominator / tf->numerator); 207 | } 208 | } 209 | return 0; 210 | } 211 | 212 | static int v4l2_fps_set(int fps) 213 | { 214 | static struct v4l2_streamparm parm; 215 | struct v4l2_fract *tf; 216 | memset(&parm, 0, sizeof(parm)); 217 | 218 | parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 219 | parm.parm.capture.timeperframe.numerator = 1000; 220 | parm.parm.capture.timeperframe.denominator = 221 | (uint32_t)(fps * parm.parm.capture.timeperframe.numerator); 222 | 223 | if (ioctl(v4l2_dev_fd, VIDIOC_S_PARM, &parm) == 0) 224 | { 225 | tf = &parm.parm.capture.timeperframe; 226 | 227 | if (!tf->denominator || !tf->numerator) 228 | { 229 | return 0; 230 | } 231 | else 232 | { 233 | return (int)(1.0 * tf->denominator / tf->numerator); 234 | } 235 | } 236 | return 0; 237 | } 238 | 239 | static void v4l2_init_fps() 240 | { 241 | int fps = v4l2_fps_get(); 242 | 243 | ctrl_mapping[ctrl_last].entry_type = V4L2_PARAM; 244 | ctrl_mapping[ctrl_last].id = 0; 245 | ctrl_mapping[ctrl_last].name = "FPS"; 246 | ctrl_mapping[ctrl_last].var_name = "fps"; 247 | ctrl_mapping[ctrl_last].control_type = 0; 248 | ctrl_mapping[ctrl_last].value = fps; 249 | ctrl_mapping[ctrl_last].minimum = 1; 250 | ctrl_mapping[ctrl_last].maximum = fps_max; 251 | ctrl_mapping[ctrl_last].step = 1; 252 | ctrl_mapping[ctrl_last].default_value = 30; 253 | ctrl_last++; 254 | 255 | } 256 | 257 | static int v4l2_set_ctrl_value(int id, int value) 258 | { 259 | struct v4l2_control control; 260 | 261 | memset(&control, 0, sizeof(control)); 262 | control.id = id; 263 | control.value = value; 264 | 265 | return ioctl(v4l2_dev_fd, VIDIOC_S_CTRL, &control); 266 | } 267 | 268 | static void v4l2_apply_control(struct control_mapping *mapping) 269 | { 270 | switch (mapping->entry_type) 271 | { 272 | case V4L2_CONTROL: 273 | v4l2_set_ctrl_value(mapping->id, mapping->value); 274 | break; 275 | 276 | case V4L2_PARAM: 277 | if (!strncmp(mapping->var_name, "fps", 3)) 278 | { 279 | mapping->value = v4l2_fps_set(mapping->value); 280 | } 281 | break; 282 | 283 | default: 284 | break; 285 | } 286 | } 287 | 288 | static char *name2var(char *name) 289 | { 290 | int i; 291 | int len_name = strlen(name) - 1; 292 | char lowercase; 293 | char out_name[127] = {'\0'}; 294 | bool add_underscore = false; 295 | 296 | for (i = 0; i <= len_name; i++) 297 | { 298 | if (isalnum(name[i])) 299 | { 300 | if (add_underscore) 301 | { 302 | strcat(out_name, "_"); 303 | add_underscore = false; 304 | } 305 | lowercase = tolower(name[i]); 306 | strncat(out_name, &lowercase, 1); 307 | } 308 | else 309 | { 310 | add_underscore = true; 311 | } 312 | } 313 | return strdup((const char *)out_name); 314 | } 315 | 316 | static bool v4l2_check_supported_control(int control_id) 317 | { 318 | if (v4l2_dev_pixelformat != V4L2_PIX_FMT_H264 && 319 | v4l2_dev_pixelformat != V4L2_PIX_FMT_H264_NO_SC && 320 | v4l2_dev_pixelformat != V4L2_PIX_FMT_H264_MVC) 321 | { 322 | switch (control_id) 323 | { 324 | case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY: 325 | case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE: 326 | case V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_ACTIVITY: 327 | case V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_DARK: 328 | case V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_SMOOTH: 329 | case V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC: 330 | case V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P: 331 | case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: 332 | case V4L2_CID_MPEG_VIDEO_H264_ASO: 333 | case V4L2_CID_MPEG_VIDEO_H264_ASO_SLICE_ORDER: 334 | case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP: 335 | case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE: 336 | case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: 337 | case V4L2_CID_MPEG_VIDEO_H264_FMO: 338 | case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_DIRECTION: 339 | case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_RATE: 340 | case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: 341 | case V4L2_CID_MPEG_VIDEO_H264_FMO_RUN_LENGTH: 342 | case V4L2_CID_MPEG_VIDEO_H264_FMO_SLICE_GROUP: 343 | case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING: 344 | case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER: 345 | case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP: 346 | case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE: 347 | case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD: 348 | case V4L2_CID_MPEG_VIDEO_H264_LEVEL: 349 | case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA: 350 | case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA: 351 | case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: 352 | case V4L2_CID_MPEG_VIDEO_H264_MAX_QP: 353 | case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: 354 | case V4L2_CID_MPEG_VIDEO_H264_PROFILE: 355 | case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: 356 | case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_CURRENT_FRAME_0: 357 | case V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING: 358 | case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT: 359 | case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH: 360 | case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: 361 | case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: 362 | return false; 363 | default: 364 | break; 365 | } 366 | } 367 | 368 | if (v4l2_dev_pixelformat != V4L2_PIX_FMT_MPEG4) 369 | { 370 | switch (control_id) 371 | { 372 | case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL: 373 | case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE: 374 | case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL: 375 | case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: 376 | case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: 377 | case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: 378 | return false; 379 | default: 380 | break; 381 | } 382 | } 383 | return true; 384 | } 385 | 386 | static void v4l2_get_controls() 387 | { 388 | const unsigned next_fl = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND; 389 | struct v4l2_queryctrl queryctrl; 390 | struct v4l2_control control; 391 | struct v4l2_querymenu querymenu; 392 | unsigned int options_count; 393 | unsigned int option_nr; 394 | unsigned int id; 395 | int menu_index; 396 | char *var_name; 397 | bool ignore; 398 | int liv; 399 | 400 | memset(&queryctrl, 0, sizeof(queryctrl)); 401 | memset(&querymenu, 0, sizeof(querymenu)); 402 | 403 | ctrl_mapping = malloc(100 * sizeof(struct control_mapping)); 404 | 405 | if (list_controls) 406 | { 407 | printf("INFO: %30s = %-30s\n", "Control variable name", "Control name"); 408 | } 409 | 410 | queryctrl.id = next_fl; 411 | while (0 == ioctl(v4l2_dev_fd, VIDIOC_QUERYCTRL, &queryctrl)) 412 | { 413 | id = queryctrl.id; 414 | queryctrl.id |= next_fl; 415 | 416 | if ((queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) || 417 | (queryctrl.flags & V4L2_CTRL_FLAG_INACTIVE) || 418 | (queryctrl.flags & V4L2_CTRL_FLAG_READ_ONLY)) 419 | { 420 | continue; 421 | } 422 | 423 | if (disable_unsupported_controls) 424 | { 425 | if (!v4l2_check_supported_control(id)) 426 | { 427 | printf("INFO: Ignore unsupported control: %s\n", queryctrl.name); 428 | continue; 429 | } 430 | } 431 | 432 | control.id = queryctrl.id; 433 | if (0 == ioctl(v4l2_dev_fd, VIDIOC_G_CTRL, &control)) 434 | { 435 | option_nr = 0; 436 | var_name = name2var((char *)queryctrl.name); 437 | 438 | if (list_controls) 439 | { 440 | printf("INFO: %30s = %-30s\n", var_name, queryctrl.name); 441 | continue; 442 | } 443 | 444 | if (last_ignored_variable > 0) 445 | { 446 | ignore = false; 447 | for (liv = 0; liv < last_ignored_variable; liv++) 448 | { 449 | if (!strncmp(var_name, ignored_variables[liv], strlen(var_name))) 450 | { 451 | ignore = true; 452 | continue; 453 | } 454 | } 455 | if (ignore) 456 | { 457 | continue; 458 | } 459 | } 460 | 461 | ctrl_mapping[ctrl_last].entry_type = V4L2_CONTROL; 462 | ctrl_mapping[ctrl_last].id = id; 463 | ctrl_mapping[ctrl_last].name = strdup((const char *)queryctrl.name); 464 | ctrl_mapping[ctrl_last].var_name = var_name; 465 | ctrl_mapping[ctrl_last].control_type = queryctrl.type; 466 | ctrl_mapping[ctrl_last].value = control.value; 467 | ctrl_mapping[ctrl_last].minimum = queryctrl.minimum; 468 | ctrl_mapping[ctrl_last].maximum = queryctrl.maximum; 469 | ctrl_mapping[ctrl_last].step = queryctrl.step; 470 | ctrl_mapping[ctrl_last].default_value = queryctrl.default_value; 471 | 472 | if (queryctrl.type == V4L2_CTRL_TYPE_MENU || queryctrl.type == V4L2_CTRL_TYPE_INTEGER_MENU) 473 | { 474 | options_count = queryctrl.maximum - queryctrl.minimum + 1; 475 | if (options_count <= 0) 476 | { 477 | continue; 478 | } 479 | ctrl_mapping[ctrl_last].options = malloc(options_count * sizeof(struct control_option)); 480 | 481 | for (menu_index = queryctrl.minimum; menu_index <= queryctrl.maximum; menu_index++) 482 | { 483 | querymenu.id = id; 484 | querymenu.index = menu_index; 485 | if (0 == ioctl(v4l2_dev_fd, VIDIOC_QUERYMENU, &querymenu)) 486 | { 487 | ctrl_mapping[ctrl_last].options[option_nr].index = querymenu.index; 488 | 489 | if (queryctrl.type == V4L2_CTRL_TYPE_MENU) 490 | { 491 | ctrl_mapping[ctrl_last].options[option_nr].name = strdup((const char *)querymenu.name); 492 | } 493 | else 494 | { 495 | ctrl_mapping[ctrl_last].options[option_nr].value = querymenu.value; 496 | } 497 | option_nr += 1; 498 | } 499 | } 500 | if (option_nr) 501 | { 502 | ctrl_mapping[ctrl_last].hasoptions = true; 503 | } 504 | } 505 | 506 | ctrl_last += 1; 507 | } 508 | } 509 | } 510 | 511 | static void control_free() 512 | { 513 | int i; 514 | 515 | for (i = 0; i < ctrl_last; i++) 516 | { 517 | if (ctrl_mapping[i].entry_type == V4L2_CONTROL) 518 | { 519 | if (ctrl_mapping[i].name) 520 | { 521 | free(ctrl_mapping[i].name); 522 | ctrl_mapping[i].name = NULL; 523 | } 524 | if (ctrl_mapping[i].var_name) 525 | { 526 | free(ctrl_mapping[i].var_name); 527 | ctrl_mapping[i].var_name = NULL; 528 | } 529 | if (ctrl_mapping[i].hasoptions && ctrl_mapping[i].options) 530 | { 531 | free(ctrl_mapping[i].options); 532 | ctrl_mapping[i].options = NULL; 533 | } 534 | } 535 | } 536 | } 537 | 538 | static void control_load(const char *title, const char *filename) 539 | { 540 | char name[30]; 541 | int value; 542 | int i; 543 | FILE *fp = fopen(filename, "r"); 544 | 545 | mvprintw(0, 20, "%*s", 60, " "); 546 | 547 | if (fp != NULL) 548 | { 549 | // Assume control=value file format 550 | while (fscanf(fp, "%[^=]=%d\r\n", name, &value) == 2) 551 | { 552 | for (i = 0; i < ctrl_last; i++) 553 | { 554 | if (strcmp(name, ctrl_mapping[i].var_name) == 0) 555 | { 556 | if (ctrl_mapping[i].value != value) 557 | { 558 | ctrl_mapping[i].value = value; 559 | v4l2_apply_control(&ctrl_mapping[i]); 560 | }; 561 | break; 562 | } 563 | } 564 | } 565 | mvprintw(0, 20, "%s file %s loaded", title, filename); 566 | fclose(fp); 567 | } 568 | else 569 | { 570 | mvprintw(0, 20, "Cannot load %s", filename); 571 | } 572 | refresh(); 573 | } 574 | 575 | static void control_save(const char *title, const char *filename) 576 | { 577 | int value; 578 | // Overwrite existing file 579 | FILE *fp = fopen(filename, "w"); 580 | 581 | mvprintw(0, 20, "%*s", 60, " "); 582 | if (fp != NULL) 583 | { 584 | for (int i = 0; i < ctrl_last; i++) 585 | { 586 | value = 0; 587 | if (ctrl_mapping[i].value != ctrl_mapping[i].default_value) 588 | { 589 | value = ctrl_mapping[i].value; 590 | fprintf(fp, "%s=%d\r\n", ctrl_mapping[i].var_name, value); 591 | } 592 | } 593 | fclose(fp); 594 | mvprintw(0, 20, "%s file %s saved", title, filename); 595 | } 596 | else 597 | { 598 | mvprintw(0, 20, "Cannot save %s", filename); 599 | } 600 | refresh(); 601 | } 602 | 603 | static int presets_read(const char *fpath, 604 | const struct stat *sb, 605 | int tflag) 606 | { 607 | char *file = NULL; 608 | int index = 0; 609 | 610 | (void)(tflag); /* avoid warning: unused parameter 'tflag' */ 611 | 612 | if (!S_ISDIR(sb->st_mode)) 613 | { 614 | file = (char *)(fpath + strlen(presets_path)); 615 | 616 | if (file[0] == '/') 617 | { 618 | file++; 619 | } 620 | 621 | if (preset_alpabetically) 622 | { 623 | if (alpha_index < 9) 624 | { 625 | presets[alpha_index].path = strdup((const char *)fpath); 626 | presets[alpha_index].name = strdup((const char *)file); 627 | printf("%d %s\n", alpha_index, presets[alpha_index].name); 628 | alpha_index++; 629 | } 630 | } 631 | else if (file[0] > 48 && file[0] < 58) 632 | { 633 | index = (int)file[0] - 49; 634 | presets[index].path = strdup((const char *)fpath); 635 | file++; 636 | 637 | while (!isalnum((int)file[0])) 638 | { 639 | file++; 640 | } 641 | presets[index].name = strdup((const char *)file); 642 | } 643 | } 644 | return 0; 645 | } 646 | 647 | static int sort_presets(const void *v1, const void *v2) 648 | { 649 | const struct preset *p1 = (struct preset *)v1; 650 | const struct preset *p2 = (struct preset *)v2; 651 | int rc = strcmp(p1->name, p2->name); 652 | if (rc < 0) 653 | { 654 | return -1; 655 | } 656 | else if (rc > 0) 657 | { 658 | return +1; 659 | } 660 | else 661 | { 662 | return 0; 663 | } 664 | } 665 | 666 | static void get_preset_files() 667 | { 668 | if (presets_path) 669 | { 670 | ftw(presets_path, presets_read, 20); 671 | if (preset_alpabetically && alpha_index > 0) 672 | { 673 | qsort(presets, alpha_index, sizeof(struct preset), sort_presets); 674 | } 675 | } 676 | } 677 | 678 | static void load_preset(int index) 679 | { 680 | if (index >= 0 && index < 9) 681 | { 682 | if (presets[index].path) 683 | { 684 | control_load("Preset", presets[index].path); 685 | last_preset_loaded = index; 686 | } 687 | } 688 | } 689 | 690 | static void load_next_preset() 691 | { 692 | int i; 693 | 694 | if (last_preset_loaded < 0) 695 | { 696 | for (i = 0; i < 9; i++) 697 | { 698 | if (presets[i].path) 699 | { 700 | load_preset(i); 701 | return; 702 | } 703 | } 704 | } 705 | else 706 | { 707 | for (i = last_preset_loaded + 1; i < 9; i++) 708 | { 709 | if (presets[i].path) 710 | { 711 | load_preset(i); 712 | return; 713 | } 714 | } 715 | for (i = 0; i < last_preset_loaded; i++) 716 | { 717 | if (presets[i].path) 718 | { 719 | load_preset(i); 720 | return; 721 | } 722 | } 723 | } 724 | } 725 | 726 | static void menu_item(int cid, int y, int x) 727 | { 728 | struct control_mapping *cm = &ctrl_mapping[cid]; 729 | int idx; 730 | char *value_diff = " "; 731 | int row_width = menu_dim.cols - 4; 732 | 733 | if (cm->value > cm->default_value) 734 | { 735 | value_diff = "+"; 736 | } 737 | else if (cm->value < cm->default_value) 738 | { 739 | value_diff = "-"; 740 | } 741 | 742 | /* value */ 743 | mvwprintw(menu_win, y, x, "%*d", row_width, cm->value); 744 | 745 | /* option name */ 746 | if (cm->hasoptions) 747 | { 748 | for (idx = cm->minimum; idx <= cm->maximum; idx++) 749 | { 750 | if (cm->options[idx].index == cm->value) 751 | { 752 | if (cm->options[idx].name) 753 | { 754 | mvwprintw(menu_win, y, x, "%*s", row_width, cm->options[idx].name); 755 | } 756 | else 757 | { 758 | mvwprintw(menu_win, y, x, "%*d", row_width, cm->options[idx].value); 759 | } 760 | } 761 | } 762 | } 763 | 764 | /* name */ 765 | mvwprintw(menu_win, y, x, "%s %s", value_diff, cm->name); 766 | } 767 | 768 | static void v4l2_format_info() 769 | { 770 | struct v4l2_format fmt; 771 | memset(&fmt, 0, sizeof(fmt)); 772 | fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 773 | 774 | if (ioctl(v4l2_dev_fd, VIDIOC_G_FMT, &fmt) < 0) 775 | { 776 | return; 777 | } 778 | v4l2_dev_pixelformat = fmt.fmt.pix.pixelformat; 779 | v4l2_dev_width = fmt.fmt.pix.width; 780 | v4l2_dev_height = fmt.fmt.pix.height; 781 | } 782 | 783 | static void ui_uninit() 784 | { 785 | curs_set(1); 786 | clrtoeol(); 787 | refresh(); 788 | endwin(); 789 | } 790 | 791 | static void draw_top() 792 | { 793 | int i; 794 | int row = 2; 795 | int col = 37; 796 | 797 | wclear(top_win); 798 | mvwin(top_win, top_dim.top, top_dim.left); 799 | wresize(top_win, top_dim.rows, top_dim.cols); 800 | 801 | mvprintw(0, 1, "Camera control: ", v4l2_devname); 802 | mvprintw(1, 1, "V4L2: %s", v4l2_devname); 803 | mvprintw(2, 1, "Format: %c%c%c%c", pixfmtstr(v4l2_dev_pixelformat)); 804 | mvprintw(3, 1, "Resolution: %dx%d", v4l2_dev_width, v4l2_dev_height); 805 | 806 | mvprintw(1, 28, "Config: %s", config_file); 807 | mvprintw(2, 28, "Presets:"); 808 | 809 | for (i = 0; i < 10; i++) 810 | { 811 | if (presets[i].name) 812 | { 813 | if (col + (int)strlen(presets[i].name) + 5 > (int)top_dim.cols) 814 | { 815 | row++; 816 | col = 37; 817 | } 818 | if (row < 4) 819 | { 820 | mvprintw(row, col, "[%d] %s", i + 1, presets[i].name); 821 | col += (int)strlen(presets[i].name) + 5; 822 | } 823 | } 824 | } 825 | 826 | wnoutrefresh(top_win); 827 | } 828 | 829 | static void draw_menu(bool full_redraw) 830 | { 831 | int i; 832 | int x = 2; 833 | int y = 1; 834 | int max; 835 | int offset = 0; 836 | int btitle_offset = 0; 837 | int window_lines = menu_dim.rows - 2; 838 | 839 | if (full_redraw) 840 | { 841 | wclear(menu_win); 842 | mvwin(menu_win, menu_dim.top, menu_dim.left); 843 | wresize(menu_win, menu_dim.rows, menu_dim.cols); 844 | } 845 | else 846 | { 847 | werase(menu_win); 848 | } 849 | box(menu_win, 0, 0); 850 | 851 | if (active_control > window_lines - 1) 852 | { 853 | if (active_control >= last_offset && active_control < last_offset + window_lines) 854 | { 855 | offset = last_offset; 856 | } 857 | else 858 | { 859 | offset = active_control - window_lines + 1; 860 | } 861 | } 862 | else if (last_offset > 0) 863 | { 864 | if (active_control > last_offset) 865 | { 866 | offset = last_offset; 867 | } 868 | else 869 | { 870 | offset = active_control; 871 | } 872 | } 873 | last_offset = offset; 874 | 875 | max = (ctrl_last >= offset + window_lines) ? offset + window_lines : ctrl_last; 876 | 877 | box(menu_win, 0, 0); 878 | for (i = offset; i < max; i++) 879 | { 880 | if (active_control == i) 881 | { 882 | wattron(menu_win, A_REVERSE); 883 | menu_item(i, y, x); 884 | wattroff(menu_win, A_REVERSE); 885 | } 886 | else 887 | { 888 | menu_item(i, y, x); 889 | } 890 | y++; 891 | } 892 | 893 | btitle_offset = menu_dim.cols - 9; 894 | btitle_offset -= (active_control + 1 < 10) ? 1 : ((active_control + 1 < 100) ? 2 : 3); 895 | btitle_offset -= (ctrl_last < 10) ? 1 : ((ctrl_last < 100) ? 2 : 3); 896 | 897 | mvwhline(menu_win, 0, 1, ACS_HLINE, menu_dim.cols - 2); 898 | wmove(menu_win, menu_dim.rows - 1, btitle_offset); 899 | wprintw(menu_win, "[ %d / %d ]", active_control + 1, ctrl_last); 900 | 901 | wnoutrefresh(menu_win); 902 | 903 | if (full_redraw) 904 | { 905 | wnoutrefresh(menu_win); 906 | } 907 | else 908 | { 909 | wrefresh(menu_win); 910 | } 911 | } 912 | 913 | static void draw_control(bool full_redraw) 914 | { 915 | struct control_mapping *cm = &ctrl_mapping[active_control]; 916 | int row = 1; 917 | int idx; 918 | 919 | if (full_redraw) 920 | { 921 | wclear(control_win); 922 | mvwin(control_win, control_dim.top, control_dim.left); 923 | wresize(control_win, control_dim.rows, control_dim.cols); 924 | } 925 | else 926 | { 927 | werase(control_win); 928 | } 929 | box(control_win, 0, 0); 930 | 931 | mvwprintw(control_win, row++, 2, "%.22s", cm->name); 932 | mvwprintw(control_win, row++, 2, "Val: %17d", cm->value); 933 | mvwprintw(control_win, row++, 2, "Min: %17d", cm->minimum); 934 | mvwprintw(control_win, row++, 2, "Max: %17d", cm->maximum); 935 | mvwprintw(control_win, row++, 2, "Stp: %17d", cm->step); 936 | mvwprintw(control_win, row++, 2, "Def: %17d", cm->default_value); 937 | mvwprintw(control_win, row, 2, "Opt: %*s", 17, ""); 938 | 939 | if (cm->hasoptions) 940 | { 941 | for (idx = cm->minimum; idx <= cm->maximum; idx++) 942 | { 943 | if (cm->options[idx].index == cm->value) 944 | { 945 | if (cm->options[idx].name) 946 | { 947 | mvwprintw(control_win, row, 2, "Opt: %17s", cm->options[idx].name); 948 | } 949 | else 950 | { 951 | mvwprintw(control_win, row, 2, "Opt: %17d", cm->options[idx].value); 952 | } 953 | } 954 | } 955 | } 956 | 957 | if (full_redraw) 958 | { 959 | wnoutrefresh(control_win); 960 | } 961 | else 962 | { 963 | wrefresh(control_win); 964 | } 965 | } 966 | 967 | static void draw_help() 968 | { 969 | int row = help_dim.top; 970 | int col = help_dim.left; 971 | int i; 972 | 973 | for (i = row; i < row + 11; i++) 974 | { 975 | mvprintw(i, col - 1, " "); 976 | } 977 | 978 | wclear(help_win); 979 | werase(help_win); 980 | mvwin(help_win, help_dim.top, help_dim.left); 981 | wresize(help_win, help_dim.rows, help_dim.cols); 982 | 983 | mvprintw(row++, col, "Up/Down/Home/End Navigate"); 984 | mvprintw(row++, col, "Left/Right Adjust"); 985 | mvprintw(row++, col, "PgDn/PgUp Jump Adjust"); 986 | mvprintw(row++, col, "1-9 Load preset file"); 987 | mvprintw(row++, col, "Tab Switch preset file"); 988 | mvprintw(row++, col, " "); 989 | mvprintw(row++, col, "R Reset All | U Update "); 990 | mvprintw(row++, col, "D Default"); 991 | mvprintw(row++, col, "N Minimum | M Maximum "); 992 | mvprintw(row++, col, "L Load | S Save "); 993 | mvprintw(row++, col, "Q Quit"); 994 | 995 | wnoutrefresh(help_win); 996 | } 997 | 998 | static void draw_ui(int row, int col) 999 | { 1000 | (void)(row); 1001 | int control_width = 26; 1002 | 1003 | top_dim.top = 0; 1004 | top_dim.left = 0; 1005 | top_dim.cols = col; 1006 | top_dim.rows = 4; 1007 | 1008 | menu_dim.top = top_dim.rows; 1009 | menu_dim.left = 0; 1010 | menu_dim.cols = col - control_width - 1; 1011 | menu_dim.rows = row - top_dim.rows; 1012 | 1013 | control_dim.top = top_dim.rows, 1014 | control_dim.left = menu_dim.cols + 1, 1015 | control_dim.cols = control_width, 1016 | control_dim.rows = 9; 1017 | 1018 | help_dim.top = control_dim.top + control_dim.rows; 1019 | help_dim.left = menu_dim.cols + 1; 1020 | help_dim.cols = control_dim.cols; 1021 | help_dim.rows = menu_dim.rows - control_dim.rows; 1022 | 1023 | if (!ui_initialized) 1024 | { 1025 | curs_set(0); 1026 | initscr(); 1027 | clear(); 1028 | noecho(); 1029 | cbreak(); 1030 | 1031 | top_win = newwin(top_dim.rows, top_dim.cols, top_dim.top, top_dim.left); 1032 | menu_win = newwin(menu_dim.rows, menu_dim.cols, menu_dim.top, menu_dim.left); 1033 | control_win = newwin(control_dim.rows, control_dim.cols, control_dim.top, control_dim.left); 1034 | help_win = newwin(help_dim.rows, help_dim.cols, help_dim.top, help_dim.left); 1035 | 1036 | ui_initialized = true; 1037 | } 1038 | resizeterm(row, col); 1039 | 1040 | touchwin(stdscr); 1041 | wnoutrefresh(stdscr); 1042 | 1043 | draw_top(); 1044 | draw_menu(true); 1045 | draw_control(true); 1046 | draw_help(); 1047 | 1048 | doupdate(); 1049 | } 1050 | 1051 | static void update_controls() 1052 | { 1053 | struct v4l2_control control; 1054 | int i; 1055 | 1056 | memset(&control, 0, sizeof(struct v4l2_control)); 1057 | 1058 | for (i = 0; i < ctrl_last; i++) 1059 | { 1060 | control.id = ctrl_mapping[i].id; 1061 | if (ioctl(v4l2_dev_fd, VIDIOC_G_CTRL, &control) == 0) 1062 | { 1063 | ctrl_mapping[i].value = control.value; 1064 | } 1065 | } 1066 | } 1067 | 1068 | static void win_watch(int sigNo) 1069 | { 1070 | struct winsize termSize; 1071 | if (sigNo == SIGWINCH) 1072 | { 1073 | if (isatty(STDIN_FILENO) && 1074 | ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&termSize) >= 0) 1075 | { 1076 | draw_ui((int)termSize.ws_row, (int)termSize.ws_col); 1077 | } 1078 | } 1079 | } 1080 | 1081 | static void init_win_watch() 1082 | { 1083 | struct winsize termSize; 1084 | struct sigaction newSigAction; 1085 | struct sigaction oldSigAction; 1086 | 1087 | if (isatty(STDIN_FILENO) && 1088 | ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&termSize) >= 0) 1089 | { 1090 | memset(&newSigAction.sa_mask, 0, sizeof(newSigAction.sa_mask)); 1091 | newSigAction.sa_flags = 0; 1092 | newSigAction.sa_handler = win_watch; 1093 | sigaction(SIGWINCH, &newSigAction, &oldSigAction); 1094 | } 1095 | } 1096 | 1097 | static int init() 1098 | { 1099 | struct control_mapping *cm; 1100 | struct winsize termSize; 1101 | int prev_active_control; 1102 | int prev_value; 1103 | bool redraw; 1104 | bool quit = false; 1105 | int c; 1106 | int i; 1107 | 1108 | if (v4l2_open(v4l2_devname) < 0) 1109 | { 1110 | return 1; 1111 | } 1112 | 1113 | v4l2_format_info(); 1114 | 1115 | v4l2_get_controls(); 1116 | v4l2_init_fps(); 1117 | 1118 | if (list_controls) 1119 | { 1120 | goto end; 1121 | } 1122 | 1123 | get_preset_files(); 1124 | 1125 | if (isatty(STDIN_FILENO) && 1126 | ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&termSize) >= 0) 1127 | { 1128 | draw_ui((int)termSize.ws_row, (int)termSize.ws_col); 1129 | } 1130 | else 1131 | { 1132 | draw_ui(24, 80); 1133 | } 1134 | 1135 | init_win_watch(); 1136 | 1137 | keypad(stdscr, TRUE); 1138 | 1139 | while (!quit) 1140 | { 1141 | c = getch(); 1142 | 1143 | cm = &ctrl_mapping[active_control]; 1144 | prev_value = cm->value; 1145 | prev_active_control = active_control; 1146 | redraw = false; 1147 | 1148 | switch (c) 1149 | { 1150 | case KEY_UP: 1151 | active_control -= 1; 1152 | break; 1153 | 1154 | case KEY_DOWN: 1155 | active_control += 1; 1156 | break; 1157 | 1158 | case KEY_LEFT: 1159 | cm->value -= cm->step; 1160 | break; 1161 | 1162 | case KEY_RIGHT: 1163 | cm->value += cm->step; 1164 | break; 1165 | 1166 | case 338: // Page Down 1167 | cm->value -= cm->step * 10; 1168 | break; 1169 | 1170 | case 339: // Page Up 1171 | cm->value += cm->step * 10; 1172 | break; 1173 | 1174 | case 262: // Home 1175 | active_control = 0; 1176 | break; 1177 | 1178 | case 360: // END 1179 | active_control = ctrl_last - 1; 1180 | break; 1181 | 1182 | case '1': 1183 | load_preset(0); 1184 | redraw = true; 1185 | break; 1186 | 1187 | case '2': 1188 | load_preset(1); 1189 | redraw = true; 1190 | break; 1191 | 1192 | case '3': 1193 | load_preset(2); 1194 | redraw = true; 1195 | break; 1196 | 1197 | case '4': 1198 | load_preset(3); 1199 | redraw = true; 1200 | break; 1201 | 1202 | case '5': 1203 | load_preset(4); 1204 | redraw = true; 1205 | break; 1206 | 1207 | case '6': 1208 | load_preset(5); 1209 | redraw = true; 1210 | break; 1211 | 1212 | case '7': 1213 | load_preset(6); 1214 | redraw = true; 1215 | break; 1216 | 1217 | case '8': 1218 | load_preset(7); 1219 | redraw = true; 1220 | break; 1221 | 1222 | case '9': 1223 | load_preset(8); 1224 | redraw = true; 1225 | break; 1226 | 1227 | case 9: 1228 | load_next_preset(); 1229 | redraw = true; 1230 | break; 1231 | 1232 | case 'N': 1233 | case 'n': 1234 | cm->value = cm->minimum; 1235 | break; 1236 | 1237 | case 'M': 1238 | case 'm': 1239 | cm->value = cm->maximum; 1240 | break; 1241 | 1242 | case 'D': 1243 | case 'd': 1244 | cm->value = cm->default_value; 1245 | break; 1246 | 1247 | case 'R': 1248 | case 'r': 1249 | for (i = 0; i < ctrl_last; i++) 1250 | { 1251 | ctrl_mapping[i].value = ctrl_mapping[i].default_value; 1252 | v4l2_apply_control(&ctrl_mapping[i]); 1253 | } 1254 | redraw = true; 1255 | break; 1256 | 1257 | case 'L': 1258 | case 'l': 1259 | mvprintw(0, 20, "%*s", 58, " "); 1260 | if (!DEBUG) 1261 | { 1262 | control_load("Config", config_file); 1263 | redraw = true; 1264 | } 1265 | break; 1266 | 1267 | case 'S': 1268 | case 's': 1269 | mvprintw(0, 20, "%*s", 58, " "); 1270 | if (!DEBUG) 1271 | { 1272 | control_save("Config", config_file); 1273 | } 1274 | break; 1275 | 1276 | case 'Q': 1277 | case 'q': 1278 | quit = true; 1279 | break; 1280 | 1281 | case 'U': 1282 | case 'u': 1283 | update_controls(); 1284 | redraw = true; 1285 | break; 1286 | 1287 | default: 1288 | if (DEBUG) 1289 | { 1290 | mvprintw(0, 0, "Character %3d '%c'", c, c); 1291 | refresh(); 1292 | } 1293 | break; 1294 | } 1295 | 1296 | cm->value = clamp(cm->value, cm->minimum, cm->maximum); 1297 | active_control = clamp(active_control, 0, ctrl_last - 1); 1298 | 1299 | if (prev_value != cm->value) 1300 | { 1301 | v4l2_apply_control(cm); 1302 | redraw = true; 1303 | } 1304 | 1305 | if (prev_active_control != active_control) 1306 | { 1307 | redraw = true; 1308 | } 1309 | 1310 | if (redraw) 1311 | { 1312 | draw_control(false); 1313 | draw_menu(false); 1314 | } 1315 | } 1316 | 1317 | ui_uninit(); 1318 | 1319 | end: 1320 | v4l2_close(); 1321 | control_free(); 1322 | return 0; 1323 | } 1324 | 1325 | static void usage(const char *argv0) 1326 | { 1327 | fprintf(stderr, "Usage: %s [options]\n", argv0); 1328 | fprintf(stderr, "Available options are\n"); 1329 | fprintf(stderr, " -a Load preset files in alphabetical order\n"); 1330 | fprintf(stderr, " -c file Path to config file\n"); 1331 | fprintf(stderr, " -d Disable unsupported controls\n"); 1332 | fprintf(stderr, " -f fps Maximum FPS value (b/w 1 and 120, default: 30)\n"); 1333 | fprintf(stderr, " -h Print this help screen and exit\n"); 1334 | fprintf(stderr, " -i control_variable Ignore control with defined name\n"); 1335 | fprintf(stderr, " -l List available controls\n"); 1336 | fprintf(stderr, " -p path Path to directory with preset files\n"); 1337 | fprintf(stderr, " -v device V4L2 Video Capture device\n"); 1338 | } 1339 | 1340 | int main(int argc, char *argv[]) 1341 | { 1342 | int opt; 1343 | 1344 | while ((opt = getopt(argc, argv, "ac:df:hi:lp:v:")) != -1) 1345 | { 1346 | switch (opt) 1347 | { 1348 | case 'a': 1349 | preset_alpabetically = true; 1350 | break; 1351 | 1352 | case 'c': 1353 | config_file = optarg; 1354 | break; 1355 | 1356 | case 'd': 1357 | disable_unsupported_controls = true; 1358 | break; 1359 | 1360 | case 'f': 1361 | if (atoi(optarg) > 0 && atoi(optarg) < 121) 1362 | { 1363 | fps_max = atoi(optarg); 1364 | } 1365 | else 1366 | { 1367 | printf("ERROR: Invalid maximum fps '%s'\n", optarg); 1368 | return 1; 1369 | } 1370 | break; 1371 | 1372 | case 'h': 1373 | usage(argv[0]); 1374 | return 1; 1375 | 1376 | case 'i': 1377 | if (last_ignored_variable < 49) 1378 | { 1379 | printf("INFO: Ignored control: %s\n", optarg); 1380 | ignored_variables[last_ignored_variable] = optarg; 1381 | last_ignored_variable += 1; 1382 | } 1383 | break; 1384 | 1385 | case 'l': 1386 | list_controls = true; 1387 | break; 1388 | 1389 | case 'p': 1390 | presets_path = optarg; 1391 | break; 1392 | 1393 | case 'v': 1394 | v4l2_devname = optarg; 1395 | break; 1396 | 1397 | default: 1398 | printf("ERROR: Invalid option '-%c'\n", opt); 1399 | goto err; 1400 | } 1401 | } 1402 | 1403 | return init(); 1404 | 1405 | err: 1406 | usage(argv[0]); 1407 | return 1; 1408 | } --------------------------------------------------------------------------------