14 // Long options that have no corresponding short option.
21 OPTION_DEFAULT_HDMI_INPUT,
22 OPTION_FAKE_CARDS_AUDIO,
24 OPTION_HTTP_UNCOMPRESSED_VIDEO,
25 OPTION_HTTP_X264_VIDEO,
26 OPTION_RECORD_X264_VIDEO,
29 OPTION_X264_SPEEDCONTROL,
30 OPTION_X264_SPEEDCONTROL_VERBOSE,
33 OPTION_X264_VBV_BUFSIZE,
34 OPTION_X264_VBV_MAX_BITRATE,
37 OPTION_HTTP_COARSE_TIMEBASE,
38 OPTION_HTTP_AUDIO_CODEC,
39 OPTION_HTTP_AUDIO_BITRATE,
43 OPTION_NO_TRANSCODE_VIDEO,
44 OPTION_NO_TRANSCODE_AUDIO,
50 OPTION_DISABLE_GAIN_STAGING_AUTO,
51 OPTION_ENABLE_GAIN_STAGING_AUTO,
52 OPTION_DISABLE_COMPRESSOR,
53 OPTION_ENABLE_COMPRESSOR,
54 OPTION_DISABLE_LIMITER,
55 OPTION_ENABLE_LIMITER,
56 OPTION_DISABLE_MAKEUP_GAIN_AUTO,
57 OPTION_ENABLE_MAKEUP_GAIN_AUTO,
58 OPTION_DISABLE_ALSA_OUTPUT,
60 OPTION_PRINT_VIDEO_LATENCY,
61 OPTION_MAX_INPUT_QUEUE_FRAMES,
62 OPTION_AUDIO_QUEUE_LENGTH_MS,
63 OPTION_OUTPUT_YCBCR_COEFFICIENTS,
64 OPTION_OUTPUT_BUFFER_FRAMES,
65 OPTION_OUTPUT_SLOP_FRAMES,
66 OPTION_TIMECODE_STREAM,
67 OPTION_TIMECODE_STDOUT,
68 OPTION_QUICK_CUT_KEYS,
71 OPTION_INPUT_YCBCR_INTERPRETATION,
72 OPTION_MJPEG_EXPORT_CARDS,
75 map<unsigned, unsigned> parse_mjpeg_export_cards(char *optarg)
77 map<unsigned, unsigned> ret;
78 if (optarg[0] == '\0') {
82 unsigned stream_idx = 0;
85 char *end = strchr(start, ',');
90 unsigned range_begin, range_end;
91 if (sscanf(start, "%u-%u", &range_begin, &range_end) != 2) {
92 range_begin = range_end = atoi(start);
94 if (range_end < range_begin) {
95 fprintf(stderr, "ERROR: Invalid range %u-%u in --mjpeg-export-cards=\n", range_begin, range_end);
98 if (range_end >= unsigned(global_flags.max_num_cards)) {
99 // There are situations where we could possibly want to
100 // include FFmpeg inputs (CEF inputs are unlikely),
101 // but they're not necessarily in 4:2:2 Y'CbCr, so it would
102 // require more functionality the the JPEG encoder.
103 fprintf(stderr, "ERROR: Asked for (zero-indexed) card %u in --mjpeg-export-cards=, but there are only %u cards\n",
104 range_end, global_flags.max_num_cards);
107 for (unsigned card_idx = range_begin; card_idx <= range_end; ++card_idx) {
108 if (ret.count(card_idx)) {
109 fprintf(stderr, "ERROR: Card %u was given twice in --mjpeg-export-cards=\n", card_idx);
112 ret[card_idx] = stream_idx++;
114 if (end == nullptr) {
123 void usage(Program program)
125 if (program == PROGRAM_KAERU) {
126 fprintf(stderr, "Usage: kaeru [OPTION]... SOURCE_URL\n");
128 fprintf(stderr, "Usage: nageru [OPTION]...\n");
130 fprintf(stderr, "\n");
131 fprintf(stderr, " --help print usage information\n");
132 if (program == PROGRAM_NAGERU) {
133 fprintf(stderr, " --fullscreen run in full screen, with no decorations\n");
135 fprintf(stderr, " -w, --width output width in pixels (default 1280)\n");
136 fprintf(stderr, " -h, --height output height in pixels (default 720)\n");
137 if (program == PROGRAM_NAGERU) {
138 fprintf(stderr, " -c, --num-cards set minimum number of input cards (default 2)\n");
139 fprintf(stderr, " --max-num-cards set maximum number of input cards (default %d)\n", MAX_VIDEO_CARDS);
140 fprintf(stderr, " -o, --output-card=CARD also output signal to the given card (default none)\n");
141 fprintf(stderr, " -t, --theme=FILE choose theme (default theme.lua)\n");
142 fprintf(stderr, " -I, --theme-dir=DIR search for theme in this directory (can be given multiple times)\n");
143 fprintf(stderr, " -r, --recording-dir=DIR where to store disk recording\n");
144 fprintf(stderr, " -v, --va-display=SPEC VA-API device for H.264 encoding\n");
145 fprintf(stderr, " ($DISPLAY spec or /dev/dri/render* path)\n");
146 fprintf(stderr, " -m, --map-signal=SIGNAL,CARD set a default card mapping (can be given multiple times)\n");
147 fprintf(stderr, " -M, --input-mapping=FILE start with the given audio input mapping (implies --multichannel)\n");
148 fprintf(stderr, " --multichannel start in multichannel audio mapping mode\n");
149 fprintf(stderr, " --midi-mapping=FILE start with the given MIDI controller mapping (implies --multichannel)\n");
150 fprintf(stderr, " --default-hdmi-input default to HDMI over SDI inputs for cards that have both\n");
151 fprintf(stderr, " --fake-cards-audio make fake (disconnected) cards output a simple tone\n");
152 fprintf(stderr, " --v4l-output DEVICE send video (no audio) to V4L2 output/loopback\n");
153 fprintf(stderr, " --http-uncompressed-video send uncompressed NV12 video to HTTP clients\n");
154 fprintf(stderr, " --http-x264-video send x264-compressed video to HTTP clients\n");
155 fprintf(stderr, " --record-x264-video store x264-compressed video to disk (implies --http-x264-video,\n");
156 fprintf(stderr, " removes the need for working VA-API encoding)\n");
158 fprintf(stderr, " --x264-preset x264 quality preset (default " X264_DEFAULT_PRESET ")\n");
159 fprintf(stderr, " --x264-tune x264 tuning (default " X264_DEFAULT_TUNE ", can be blank)\n");
160 fprintf(stderr, " --x264-speedcontrol try to match x264 preset to available CPU speed\n");
161 fprintf(stderr, " --x264-speedcontrol-verbose output speedcontrol debugging statistics\n");
162 fprintf(stderr, " --x264-bitrate x264 bitrate (in kilobit/sec, default %d)\n",
163 DEFAULT_X264_OUTPUT_BIT_RATE);
164 fprintf(stderr, " --x264-crf=VALUE quality-based VBR (-12 to 51), incompatible with --x264-bitrate and VBV\n");
165 fprintf(stderr, " --x264-vbv-bufsize x264 VBV size (in kilobits, 0 = one-frame VBV,\n");
166 fprintf(stderr, " default: same as --x264-bitrate, that is, one-second VBV)\n");
167 fprintf(stderr, " --x264-vbv-max-bitrate x264 local max bitrate (in kilobit/sec per --vbv-bufsize,\n");
168 fprintf(stderr, " 0 = no limit, default: same as --x264-bitrate, i.e., CBR)\n");
169 fprintf(stderr, " --x264-param=NAME[,VALUE] set any x264 parameter, for fine tuning\n");
170 fprintf(stderr, " --http-mux=NAME mux to use for HTTP streams (default " DEFAULT_STREAM_MUX_NAME ")\n");
171 fprintf(stderr, " --http-audio-codec=NAME audio codec to use for HTTP streams\n");
172 fprintf(stderr, " (default is to use the same as for the recording)\n");
173 fprintf(stderr, " --http-audio-bitrate=KBITS audio codec bit rate to use for HTTP streams\n");
174 fprintf(stderr, " (default is %d, ignored unless --http-audio-codec is set)\n",
175 DEFAULT_AUDIO_OUTPUT_BIT_RATE / 1000);
176 fprintf(stderr, " --http-port=PORT which port to use for the built-in HTTP server\n");
177 fprintf(stderr, " (default is %d)\n", DEFAULT_HTTPD_PORT);
178 fprintf(stderr, " --srt-port=PORT which port to use for receiving SRT streams\n");
179 fprintf(stderr, " (default is %d)\n", DEFAULT_SRT_PORT);
180 fprintf(stderr, " --no-srt disable receiving SRT streams\n");
181 if (program == PROGRAM_KAERU) {
182 fprintf(stderr, " --no-transcode-video copy encoded video raw from the source stream\n");
183 fprintf(stderr, " (experimental, must be H.264)\n");
184 fprintf(stderr, " --no-transcode-audio copy encoded audio raw from the source stream\n");
185 fprintf(stderr, " (requires --http-audio-codec= to be set)\n");
186 fprintf(stderr, " --disable-audio do not include any audio in the stream\n");
188 if (program == PROGRAM_NAGERU) {
189 fprintf(stderr, " --flat-audio start with most audio processing turned off\n");
190 fprintf(stderr, " (can be overridden by e.g. --enable-limiter)\n");
191 fprintf(stderr, " --gain-staging=DB set initial gain staging to the given value\n");
192 fprintf(stderr, " (--disable-gain-staging-auto)\n");
193 fprintf(stderr, " --disable-locut turn off locut filter (also --enable)\n");
194 fprintf(stderr, " --disable-gain-staging-auto turn off automatic gain staging (also --enable)\n");
195 fprintf(stderr, " --disable-compressor turn off regular compressor (also --enable)\n");
196 fprintf(stderr, " --disable-limiter turn off limiter (also --enable)\n");
197 fprintf(stderr, " --disable-makeup-gain-auto turn off auto-adjustment of final makeup gain (also --enable)\n");
198 fprintf(stderr, " --disable-alsa-output disable audio monitoring via ALSA\n");
199 fprintf(stderr, " --no-flush-pbos do not explicitly signal texture data uploads\n");
200 fprintf(stderr, " (will give display corruption, but makes it\n");
201 fprintf(stderr, " possible to run with apitrace in real time)\n");
202 fprintf(stderr, " --print-video-latency print out measurements of video latency on stdout\n");
203 fprintf(stderr, " --max-input-queue-frames=FRAMES never keep more than FRAMES frames for each card\n");
204 fprintf(stderr, " (default 6, minimum 1)\n");
205 fprintf(stderr, " --audio-queue-length-ms=MS length of audio resampling queue (default 100.0)\n");
206 fprintf(stderr, " --output-ycbcr-coefficients={rec601,rec709,auto}\n");
207 fprintf(stderr, " Y'CbCr coefficient standard of output (default auto)\n");
208 fprintf(stderr, " auto is rec601, unless --output-card is used\n");
209 fprintf(stderr, " and a Rec. 709 mode (typically HD modes) is in use\n");
210 fprintf(stderr, " --output-buffer-frames=NUM number of frames in output buffer for --output-card,\n");
211 fprintf(stderr, " can be fractional (default 6.0); note also\n");
212 fprintf(stderr, " the audio queue can't be much longer than this\n");
213 fprintf(stderr, " --output-slop-frames=NUM if more less than this number of frames behind for\n");
214 fprintf(stderr, " --output-card, try to submit anyway instead of\n");
215 fprintf(stderr, " dropping the frame (default 0.5)\n");
216 fprintf(stderr, " --timecode-stream show timestamp and timecode in stream\n");
217 fprintf(stderr, " --timecode-stdout show timestamp and timecode on standard output\n");
218 fprintf(stderr, " --quick-cut-keys enable direct cutting by Q, W, E, ... keys\n");
219 fprintf(stderr, " --10-bit-input use 10-bit video input (requires compute shaders)\n");
220 fprintf(stderr, " --10-bit-output use 10-bit video output (requires compute shaders,\n");
221 fprintf(stderr, " implies --record-x264-video)\n");
222 fprintf(stderr, " --input-ycbcr-interpretation=CARD,{rec601,rec709,auto}[,{limited,full}]\n");
223 fprintf(stderr, " Y'CbCr coefficient standard of card CARD (default auto)\n");
224 fprintf(stderr, " auto is rec601 for SD, rec709 for HD, always limited\n");
225 fprintf(stderr, " limited means standard 0-240/0-235 input range (for 8-bit)\n");
226 fprintf(stderr, " --mjpeg-export-cards=RANGE[,RANGE...]\n");
227 fprintf(stderr, " export the given cards in MJPEG format to /multicam.mp4,\n");
228 fprintf(stderr, " in the given order (ranges can be either single card indexes\n");
229 fprintf(stderr, " or pairs like 1-3 for camera 1,2,3; default is all cards)\n");
233 void parse_flags(Program program, int argc, char * const argv[])
235 static const option long_options[] = {
236 { "help", no_argument, 0, OPTION_HELP },
237 { "fullscreen", no_argument, 0, OPTION_FULLSCREEN },
238 { "width", required_argument, 0, 'w' },
239 { "height", required_argument, 0, 'h' },
240 { "num-cards", required_argument, 0, 'c' },
241 { "max-num-cards", required_argument, 0, OPTION_MAX_NUM_CARDS },
242 { "output-card", required_argument, 0, 'o' },
243 { "theme", required_argument, 0, 't' },
244 { "theme-dir", required_argument, 0, 'I' },
245 { "recording-dir", required_argument, 0, 'r' },
246 { "map-signal", required_argument, 0, 'm' },
247 { "input-mapping", required_argument, 0, 'M' },
248 { "va-display", required_argument, 0, 'v' },
249 { "multichannel", no_argument, 0, OPTION_MULTICHANNEL },
250 { "midi-mapping", required_argument, 0, OPTION_MIDI_MAPPING },
251 { "default-hdmi-input", no_argument, 0, OPTION_DEFAULT_HDMI_INPUT },
252 { "fake-cards-audio", no_argument, 0, OPTION_FAKE_CARDS_AUDIO },
253 { "v4l-output", required_argument, 0, OPTION_V4L_OUTPUT },
254 { "http-uncompressed-video", no_argument, 0, OPTION_HTTP_UNCOMPRESSED_VIDEO },
255 { "http-x264-video", no_argument, 0, OPTION_HTTP_X264_VIDEO },
256 { "record-x264-video", no_argument, 0, OPTION_RECORD_X264_VIDEO },
257 { "x264-preset", required_argument, 0, OPTION_X264_PRESET },
258 { "x264-tune", required_argument, 0, OPTION_X264_TUNE },
259 { "x264-speedcontrol", no_argument, 0, OPTION_X264_SPEEDCONTROL },
260 { "x264-speedcontrol-verbose", no_argument, 0, OPTION_X264_SPEEDCONTROL_VERBOSE },
261 { "x264-bitrate", required_argument, 0, OPTION_X264_BITRATE },
262 { "x264-crf", required_argument, 0, OPTION_X264_CRF },
263 { "x264-vbv-bufsize", required_argument, 0, OPTION_X264_VBV_BUFSIZE },
264 { "x264-vbv-max-bitrate", required_argument, 0, OPTION_X264_VBV_MAX_BITRATE },
265 { "x264-param", required_argument, 0, OPTION_X264_PARAM },
266 { "http-mux", required_argument, 0, OPTION_HTTP_MUX },
267 { "http-audio-codec", required_argument, 0, OPTION_HTTP_AUDIO_CODEC },
268 { "http-audio-bitrate", required_argument, 0, OPTION_HTTP_AUDIO_BITRATE },
269 { "http-port", required_argument, 0, OPTION_HTTP_PORT },
270 { "srt-port", required_argument, 0, OPTION_SRT_PORT },
271 { "no-srt", no_argument, 0, OPTION_NO_SRT },
272 { "no-transcode-video", no_argument, 0, OPTION_NO_TRANSCODE_VIDEO },
273 { "no-transcode-audio", no_argument, 0, OPTION_NO_TRANSCODE_AUDIO },
274 { "disable-audio", no_argument, 0, OPTION_DISABLE_AUDIO },
275 { "flat-audio", no_argument, 0, OPTION_FLAT_AUDIO },
276 { "gain-staging", required_argument, 0, OPTION_GAIN_STAGING },
277 { "disable-locut", no_argument, 0, OPTION_DISABLE_LOCUT },
278 { "enable-locut", no_argument, 0, OPTION_ENABLE_LOCUT },
279 { "disable-gain-staging-auto", no_argument, 0, OPTION_DISABLE_GAIN_STAGING_AUTO },
280 { "enable-gain-staging-auto", no_argument, 0, OPTION_ENABLE_GAIN_STAGING_AUTO },
281 { "disable-compressor", no_argument, 0, OPTION_DISABLE_COMPRESSOR },
282 { "enable-compressor", no_argument, 0, OPTION_ENABLE_COMPRESSOR },
283 { "disable-limiter", no_argument, 0, OPTION_DISABLE_LIMITER },
284 { "enable-limiter", no_argument, 0, OPTION_ENABLE_LIMITER },
285 { "disable-makeup-gain-auto", no_argument, 0, OPTION_DISABLE_MAKEUP_GAIN_AUTO },
286 { "enable-makeup-gain-auto", no_argument, 0, OPTION_ENABLE_MAKEUP_GAIN_AUTO },
287 { "disable-alsa-output", no_argument, 0, OPTION_DISABLE_ALSA_OUTPUT },
288 { "no-flush-pbos", no_argument, 0, OPTION_NO_FLUSH_PBOS },
289 { "print-video-latency", no_argument, 0, OPTION_PRINT_VIDEO_LATENCY },
290 { "max-input-queue-frames", required_argument, 0, OPTION_MAX_INPUT_QUEUE_FRAMES },
291 { "audio-queue-length-ms", required_argument, 0, OPTION_AUDIO_QUEUE_LENGTH_MS },
292 { "output-ycbcr-coefficients", required_argument, 0, OPTION_OUTPUT_YCBCR_COEFFICIENTS },
293 { "output-buffer-frames", required_argument, 0, OPTION_OUTPUT_BUFFER_FRAMES },
294 { "output-slop-frames", required_argument, 0, OPTION_OUTPUT_SLOP_FRAMES },
295 { "timecode-stream", no_argument, 0, OPTION_TIMECODE_STREAM },
296 { "timecode-stdout", no_argument, 0, OPTION_TIMECODE_STDOUT },
297 { "quick-cut-keys", no_argument, 0, OPTION_QUICK_CUT_KEYS },
298 { "10-bit-input", no_argument, 0, OPTION_10_BIT_INPUT },
299 { "10-bit-output", no_argument, 0, OPTION_10_BIT_OUTPUT },
300 { "input-ycbcr-interpretation", required_argument, 0, OPTION_INPUT_YCBCR_INTERPRETATION },
301 { "mjpeg-export-cards", required_argument, 0, OPTION_MJPEG_EXPORT_CARDS },
304 vector<string> theme_dirs;
305 string output_ycbcr_coefficients = "auto";
306 bool card_to_mjpeg_stream_export_set = false;
308 int option_index = 0;
309 int c = getopt_long(argc, argv, "c:o:t:I:r:v:m:M:w:h:", long_options, &option_index);
316 global_flags.width = atoi(optarg);
319 global_flags.height = atoi(optarg);
322 global_flags.min_num_cards = atoi(optarg);
324 case OPTION_MAX_NUM_CARDS:
325 global_flags.max_num_cards = atoi(optarg);
328 global_flags.output_card = atoi(optarg);
331 global_flags.theme_filename = optarg;
334 theme_dirs.push_back(optarg);
337 global_flags.recording_dir = optarg;
340 char *ptr = strchr(optarg, ',');
341 if (ptr == nullptr) {
342 fprintf(stderr, "ERROR: Invalid argument '%s' to --map-signal (needs a signal and a card number, separated by comma)\n", optarg);
346 const int signal_num = atoi(optarg);
347 const int card_num = atoi(ptr + 1);
348 if (global_flags.default_stream_mapping.count(signal_num)) {
349 fprintf(stderr, "ERROR: Signal %d already mapped to card %d\n",
350 signal_num, global_flags.default_stream_mapping[signal_num]);
353 global_flags.default_stream_mapping[signal_num] = card_num;
357 global_flags.input_mapping_filename = optarg;
359 case OPTION_MULTICHANNEL:
360 global_flags.multichannel_mapping_mode = true;
363 global_flags.va_display = optarg;
365 case OPTION_MIDI_MAPPING:
366 global_flags.midi_mapping_filename = optarg;
367 global_flags.multichannel_mapping_mode = true;
369 case OPTION_DEFAULT_HDMI_INPUT:
370 global_flags.default_hdmi_input = true;
372 case OPTION_FAKE_CARDS_AUDIO:
373 global_flags.fake_cards_audio = true;
375 case OPTION_V4L_OUTPUT:
376 global_flags.v4l_output_device = optarg;
378 case OPTION_HTTP_UNCOMPRESSED_VIDEO:
379 global_flags.uncompressed_video_to_http = true;
381 case OPTION_HTTP_MUX:
382 global_flags.stream_mux_name = optarg;
384 case OPTION_HTTP_AUDIO_CODEC:
385 global_flags.stream_audio_codec_name = optarg;
387 case OPTION_HTTP_AUDIO_BITRATE:
388 global_flags.stream_audio_codec_bitrate = atoi(optarg) * 1000;
390 case OPTION_HTTP_PORT:
391 global_flags.http_port = atoi(optarg);
393 case OPTION_SRT_PORT:
394 global_flags.srt_port = atoi(optarg);
397 global_flags.srt_port = -1;
399 case OPTION_NO_TRANSCODE_VIDEO:
400 global_flags.transcode_video = false;
402 case OPTION_NO_TRANSCODE_AUDIO:
403 global_flags.transcode_audio = false;
405 case OPTION_DISABLE_AUDIO:
406 global_flags.transcode_audio = false;
407 global_flags.enable_audio = false;
409 case OPTION_HTTP_X264_VIDEO:
410 global_flags.x264_video_to_http = true;
412 case OPTION_RECORD_X264_VIDEO:
413 global_flags.x264_video_to_disk = true;
414 global_flags.x264_video_to_http = true;
416 case OPTION_X264_PRESET:
417 global_flags.x264_preset = optarg;
419 case OPTION_X264_TUNE:
420 global_flags.x264_tune = optarg;
422 case OPTION_X264_SPEEDCONTROL:
423 global_flags.x264_speedcontrol = true;
425 case OPTION_X264_SPEEDCONTROL_VERBOSE:
426 global_flags.x264_speedcontrol_verbose = true;
428 case OPTION_X264_BITRATE:
429 global_flags.x264_bitrate = atoi(optarg);
431 case OPTION_X264_CRF:
432 global_flags.x264_crf = atof(optarg);
434 case OPTION_X264_VBV_BUFSIZE:
435 global_flags.x264_vbv_buffer_size = atoi(optarg);
437 case OPTION_X264_VBV_MAX_BITRATE:
438 global_flags.x264_vbv_max_bitrate = atoi(optarg);
440 case OPTION_X264_PARAM:
441 global_flags.x264_extra_param.push_back(optarg);
443 case OPTION_FLAT_AUDIO:
444 // If --flat-audio is given, turn off everything that messes with the sound,
445 // except the final makeup gain.
446 global_flags.locut_enabled = false;
447 global_flags.gain_staging_auto = false;
448 global_flags.compressor_enabled = false;
449 global_flags.limiter_enabled = false;
451 case OPTION_GAIN_STAGING:
452 global_flags.initial_gain_staging_db = atof(optarg);
453 global_flags.gain_staging_auto = false;
455 case OPTION_DISABLE_LOCUT:
456 global_flags.locut_enabled = false;
458 case OPTION_ENABLE_LOCUT:
459 global_flags.locut_enabled = true;
461 case OPTION_DISABLE_GAIN_STAGING_AUTO:
462 global_flags.gain_staging_auto = false;
464 case OPTION_ENABLE_GAIN_STAGING_AUTO:
465 global_flags.gain_staging_auto = true;
467 case OPTION_DISABLE_COMPRESSOR:
468 global_flags.compressor_enabled = false;
470 case OPTION_ENABLE_COMPRESSOR:
471 global_flags.compressor_enabled = true;
473 case OPTION_DISABLE_LIMITER:
474 global_flags.limiter_enabled = false;
476 case OPTION_ENABLE_LIMITER:
477 global_flags.limiter_enabled = true;
479 case OPTION_DISABLE_MAKEUP_GAIN_AUTO:
480 global_flags.final_makeup_gain_auto = false;
482 case OPTION_ENABLE_MAKEUP_GAIN_AUTO:
483 global_flags.final_makeup_gain_auto = true;
485 case OPTION_DISABLE_ALSA_OUTPUT:
486 global_flags.enable_alsa_output = false;
488 case OPTION_NO_FLUSH_PBOS:
489 global_flags.flush_pbos = false;
491 case OPTION_PRINT_VIDEO_LATENCY:
492 global_flags.print_video_latency = true;
494 case OPTION_MAX_INPUT_QUEUE_FRAMES:
495 global_flags.max_input_queue_frames = atoi(optarg);
497 case OPTION_AUDIO_QUEUE_LENGTH_MS:
498 global_flags.audio_queue_length_ms = atof(optarg);
500 case OPTION_OUTPUT_YCBCR_COEFFICIENTS:
501 output_ycbcr_coefficients = optarg;
503 case OPTION_OUTPUT_BUFFER_FRAMES:
504 global_flags.output_buffer_frames = atof(optarg);
506 case OPTION_OUTPUT_SLOP_FRAMES:
507 global_flags.output_slop_frames = atof(optarg);
509 case OPTION_TIMECODE_STREAM:
510 global_flags.display_timecode_in_stream = true;
512 case OPTION_TIMECODE_STDOUT:
513 global_flags.display_timecode_on_stdout = true;
515 case OPTION_QUICK_CUT_KEYS:
516 global_flags.enable_quick_cut_keys = true;
518 case OPTION_10_BIT_INPUT:
519 global_flags.ten_bit_input = true;
521 case OPTION_10_BIT_OUTPUT:
522 global_flags.ten_bit_output = true;
523 global_flags.x264_video_to_disk = true;
524 global_flags.x264_video_to_http = true;
525 global_flags.x264_bit_depth = 10;
527 case OPTION_INPUT_YCBCR_INTERPRETATION: {
528 char *ptr = strchr(optarg, ',');
529 if (ptr == nullptr) {
530 fprintf(stderr, "ERROR: Invalid argument '%s' to --input-ycbcr-interpretation (needs a card and an interpretation, separated by comma)\n", optarg);
534 const int card_num = atoi(optarg);
535 if (card_num < 0 || card_num >= MAX_VIDEO_CARDS) {
536 fprintf(stderr, "ERROR: Invalid card number %d\n", card_num);
540 YCbCrInterpretation interpretation;
541 char *interpretation_str = ptr + 1;
542 ptr = strchr(interpretation_str, ',');
543 if (ptr != nullptr) {
545 const char *range = ptr + 1;
546 if (strcmp(range, "full") == 0) {
547 interpretation.full_range = true;
548 } else if (strcmp(range, "limited") == 0) {
549 interpretation.full_range = false;
551 fprintf(stderr, "ERROR: Invalid Y'CbCr range '%s' (must be “full” or “limited”)\n", range);
556 if (strcmp(interpretation_str, "rec601") == 0) {
557 interpretation.ycbcr_coefficients_auto = false;
558 interpretation.ycbcr_coefficients = movit::YCBCR_REC_601;
559 } else if (strcmp(interpretation_str, "rec709") == 0) {
560 interpretation.ycbcr_coefficients_auto = false;
561 interpretation.ycbcr_coefficients = movit::YCBCR_REC_709;
562 } else if (strcmp(interpretation_str, "auto") == 0) {
563 interpretation.ycbcr_coefficients_auto = true;
564 if (interpretation.full_range) {
565 fprintf(stderr, "ERROR: Cannot use “auto” Y'CbCr coefficients with full range\n");
569 fprintf(stderr, "ERROR: Invalid Y'CbCr coefficients '%s' (must be “rec601”, “rec709” or “auto”)\n", interpretation_str);
572 global_flags.ycbcr_interpretation[card_num] = interpretation;
575 case OPTION_FULLSCREEN:
576 global_flags.fullscreen = true;
578 case OPTION_MJPEG_EXPORT_CARDS: {
579 if (card_to_mjpeg_stream_export_set) {
580 fprintf(stderr, "ERROR: --mjpeg-export-cards given twice\n");
583 global_flags.card_to_mjpeg_stream_export = parse_mjpeg_export_cards(optarg);
584 card_to_mjpeg_stream_export_set = true;
591 fprintf(stderr, "Unknown option '%s'\n", argv[option_index]);
592 fprintf(stderr, "\n");
598 if (global_flags.uncompressed_video_to_http &&
599 global_flags.x264_video_to_http) {
600 fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
603 if (global_flags.min_num_cards <= 0) {
604 fprintf(stderr, "ERROR: --num-cards must be at least 1\n");
607 if (global_flags.max_num_cards <= 0) {
608 fprintf(stderr, "ERROR: --max-num-cards must be at least 1\n");
611 if (global_flags.max_num_cards < global_flags.min_num_cards) {
612 fprintf(stderr, "ERROR: --max-num-cards can not be lower than --num-cards\n");
615 if (global_flags.output_card < -1 ||
616 global_flags.output_card >= global_flags.max_num_cards) {
617 fprintf(stderr, "ERROR: --output-card points to a nonexistant card\n");
620 if (global_flags.enable_audio && !global_flags.transcode_audio && global_flags.stream_audio_codec_name.empty()) {
621 fprintf(stderr, "ERROR: If not transcoding audio, you must specify ahead-of-time what audio codec is in use\n");
622 fprintf(stderr, " (using --http-audio-codec).\n");
625 if (global_flags.x264_speedcontrol) {
626 if (!global_flags.x264_preset.empty() && global_flags.x264_preset != "faster") {
627 fprintf(stderr, "WARNING: --x264-preset is overridden by --x264-speedcontrol (implicitly uses \"faster\" as base preset)\n");
629 global_flags.x264_preset = "faster";
630 } else if (global_flags.x264_preset.empty()) {
631 global_flags.x264_preset = X264_DEFAULT_PRESET;
633 if (!theme_dirs.empty()) {
634 global_flags.theme_dirs = theme_dirs;
637 // In reality, we could probably do with any even value (we subsample
638 // by two in some places), but it's better to be on the safe side
639 // wrt. video codecs and such. (I'd set 16 if I could, but 1080 isn't
641 if (global_flags.width <= 0 || (global_flags.width % 8) != 0 ||
642 global_flags.height <= 0 || (global_flags.height % 8) != 0) {
643 fprintf(stderr, "ERROR: --width and --height must be positive integers divisible by 8\n");
647 for (pair<int, int> mapping : global_flags.default_stream_mapping) {
648 if (mapping.second >= global_flags.max_num_cards) {
649 fprintf(stderr, "ERROR: Signal %d mapped to card %d, which doesn't exist (try adjusting --max-num-cards)\n",
650 mapping.first, mapping.second);
655 // Rec. 709 would be the sane thing to do, but it seems many players
656 // just default to BT.601 coefficients no matter what. We _do_ set
657 // the right flags, so that a player that works properly doesn't have
658 // to guess, but it's frequently ignored. See discussions
659 // in e.g. https://trac.ffmpeg.org/ticket/4978; the situation with
660 // browsers is complicated and depends on things like hardware acceleration
661 // (https://bugs.chromium.org/p/chromium/issues/detail?id=333619 for
662 // extensive discussion). VLC generally fixed this as part of 3.0.0
663 // (see e.g. https://github.com/videolan/vlc/commit/bc71288b2e38c07d6921472824b92eef1aa85f7e
664 // and https://github.com/videolan/vlc/commit/c3fc2683a9cde1d42674ebf9935dced05733a215),
665 // but earlier versions were pretty random.
667 // On the other hand, HDMI/SDI output typically requires Rec. 709 for
668 // HD resolutions (with no way of signaling anything else), which is
669 // a conflicting demand. In this case, we typically let the HDMI/SDI
670 // output win if it is active, but the user can override this.
671 if (output_ycbcr_coefficients == "auto") {
672 // Essentially: BT.709 if HDMI/SDI output is on, otherwise BT.601.
673 global_flags.ycbcr_rec709_coefficients = false;
674 global_flags.ycbcr_auto_coefficients = true;
675 } else if (output_ycbcr_coefficients == "rec709") {
676 global_flags.ycbcr_rec709_coefficients = true;
677 global_flags.ycbcr_auto_coefficients = false;
678 } else if (output_ycbcr_coefficients == "rec601") {
679 global_flags.ycbcr_rec709_coefficients = false;
680 global_flags.ycbcr_auto_coefficients = false;
682 fprintf(stderr, "ERROR: --output-ycbcr-coefficients must be “rec601”, “rec709” or “auto”\n");
686 if (global_flags.output_buffer_frames < 0.0f) {
687 // Actually, even zero probably won't make sense; there is some internal
688 // delay to the card.
689 fprintf(stderr, "ERROR: --output-buffer-frames can't be negative.\n");
692 if (global_flags.output_slop_frames < 0.0f) {
693 fprintf(stderr, "ERROR: --output-slop-frames can't be negative.\n");
696 if (global_flags.max_input_queue_frames < 1) {
697 fprintf(stderr, "ERROR: --max-input-queue-frames must be at least 1.\n");
700 if (global_flags.max_input_queue_frames > 10) {
701 fprintf(stderr, "WARNING: --max-input-queue-frames has little effect over 10.\n");
704 if (!isinf(global_flags.x264_crf)) { // CRF mode is selected.
705 if (global_flags.x264_bitrate != -1) {
706 fprintf(stderr, "ERROR: --x264-bitrate and --x264-crf are mutually incompatible.\n");
709 if (global_flags.x264_vbv_max_bitrate != -1 && global_flags.x264_vbv_buffer_size != -1) {
710 fprintf(stderr, "WARNING: VBV settings are ignored with --x264-crf.\n");
712 } else if (global_flags.x264_bitrate == -1) {
713 global_flags.x264_bitrate = DEFAULT_X264_OUTPUT_BIT_RATE;
716 if (!card_to_mjpeg_stream_export_set) {
717 // Fill in the default mapping (export all cards, in order).
718 for (unsigned card_idx = 0; card_idx < unsigned(global_flags.max_num_cards); ++card_idx) {
719 global_flags.card_to_mjpeg_stream_export[card_idx] = card_idx;