+// Long options that have no corresponding short option.
+enum LongOption {
+ OPTION_HELP = 1000,
+ OPTION_MULTICHANNEL,
+ OPTION_MIDI_MAPPING,
+ OPTION_FAKE_CARDS_AUDIO,
+ OPTION_HTTP_UNCOMPRESSED_VIDEO,
+ OPTION_HTTP_X264_VIDEO,
+ OPTION_RECORD_X264_VIDEO,
+ OPTION_X264_PRESET,
+ OPTION_X264_TUNE,
+ OPTION_X264_SPEEDCONTROL,
+ OPTION_X264_SPEEDCONTROL_VERBOSE,
+ OPTION_X264_BITRATE,
+ OPTION_X264_VBV_BUFSIZE,
+ OPTION_X264_VBV_MAX_BITRATE,
+ OPTION_X264_PARAM,
+ OPTION_HTTP_MUX,
+ OPTION_HTTP_COARSE_TIMEBASE,
+ OPTION_HTTP_AUDIO_CODEC,
+ OPTION_HTTP_AUDIO_BITRATE,
+ OPTION_FLAT_AUDIO,
+ OPTION_GAIN_STAGING,
+ OPTION_DISABLE_LOCUT,
+ OPTION_ENABLE_LOCUT,
+ OPTION_DISABLE_GAIN_STAGING_AUTO,
+ OPTION_ENABLE_GAIN_STAGING_AUTO,
+ OPTION_DISABLE_COMPRESSOR,
+ OPTION_ENABLE_COMPRESSOR,
+ OPTION_DISABLE_LIMITER,
+ OPTION_ENABLE_LIMITER,
+ OPTION_DISABLE_MAKEUP_GAIN_AUTO,
+ OPTION_ENABLE_MAKEUP_GAIN_AUTO,
+ OPTION_DISABLE_ALSA_OUTPUT,
+ OPTION_NO_FLUSH_PBOS,
+ OPTION_PRINT_VIDEO_LATENCY,
+ OPTION_MAX_INPUT_QUEUE_FRAMES,
+ OPTION_AUDIO_QUEUE_LENGTH_MS,
+ OPTION_OUTPUT_YCBCR_COEFFICIENTS,
+ OPTION_OUTPUT_BUFFER_FRAMES,
+ OPTION_OUTPUT_SLOP_FRAMES,
+ OPTION_TIMECODE_STREAM,
+ OPTION_TIMECODE_STDOUT,
+ OPTION_10_BIT_INPUT,
+};
+
+void usage()
+{
+ fprintf(stderr, "Usage: nageru [OPTION]...\n");
+ fprintf(stderr, "\n");
+ fprintf(stderr, " --help print usage information\n");
+ fprintf(stderr, " -w, --width output width in pixels (default 1280)\n");
+ fprintf(stderr, " -h, --height output height in pixels (default 720)\n");
+ fprintf(stderr, " -c, --num-cards set number of input cards (default 2)\n");
+ fprintf(stderr, " -o, --output-card=CARD also output signal to the given card (default none)\n");
+ fprintf(stderr, " -t, --theme=FILE choose theme (default theme.lua)\n");
+ fprintf(stderr, " -I, --theme-dir=DIR search for theme in this directory (can be given multiple times)\n");
+ fprintf(stderr, " -v, --va-display=SPEC VA-API device for H.264 encoding\n");
+ fprintf(stderr, " ($DISPLAY spec or /dev/dri/render* path)\n");
+ fprintf(stderr, " -m, --map-signal=SIGNAL,CARD set a default card mapping (can be given multiple times)\n");
+ fprintf(stderr, " -M, --input-mapping=FILE start with the given audio input mapping (implies --multichannel)\n");
+ fprintf(stderr, " --multichannel start in multichannel audio mapping mode\n");
+ fprintf(stderr, " --midi-mapping=FILE start with the given MIDI controller mapping (implies --multichannel)\n");
+ fprintf(stderr, " --fake-cards-audio make fake (disconnected) cards output a simple tone\n");
+ fprintf(stderr, " --http-uncompressed-video send uncompressed NV12 video to HTTP clients\n");
+ fprintf(stderr, " --http-x264-video send x264-compressed video to HTTP clients\n");
+ fprintf(stderr, " --record-x264-video store x264-compressed video to disk (implies --http-x264-video,\n");
+ fprintf(stderr, " removes the need for working VA-API encoding)\n");
+ fprintf(stderr, " --x264-preset x264 quality preset (default " X264_DEFAULT_PRESET ")\n");
+ fprintf(stderr, " --x264-tune x264 tuning (default " X264_DEFAULT_TUNE ", can be blank)\n");
+ fprintf(stderr, " --x264-speedcontrol try to match x264 preset to available CPU speed\n");
+ fprintf(stderr, " --x264-speedcontrol-verbose output speedcontrol debugging statistics\n");
+ fprintf(stderr, " --x264-bitrate x264 bitrate (in kilobit/sec, default %d)\n",
+ DEFAULT_X264_OUTPUT_BIT_RATE);
+ fprintf(stderr, " --x264-vbv-bufsize x264 VBV size (in kilobits, 0 = one-frame VBV,\n");
+ fprintf(stderr, " default: same as --x264-bitrate, that is, one-second VBV)\n");
+ fprintf(stderr, " --x264-vbv-max-bitrate x264 local max bitrate (in kilobit/sec per --vbv-bufsize,\n");
+ fprintf(stderr, " 0 = no limit, default: same as --x264-bitrate, i.e., CBR)\n");
+ fprintf(stderr, " --x264-param=NAME[,VALUE] set any x264 parameter, for fine tuning\n");
+ fprintf(stderr, " --http-mux=NAME mux to use for HTTP streams (default " DEFAULT_STREAM_MUX_NAME ")\n");
+ fprintf(stderr, " --http-audio-codec=NAME audio codec to use for HTTP streams\n");
+ fprintf(stderr, " (default is to use the same as for the recording)\n");
+ fprintf(stderr, " --http-audio-bitrate=KBITS audio codec bit rate to use for HTTP streams\n");
+ fprintf(stderr, " (default is %d, ignored unless --http-audio-codec is set)\n",
+ DEFAULT_AUDIO_OUTPUT_BIT_RATE / 1000);
+ fprintf(stderr, " --http-coarse-timebase use less timebase for HTTP (recommended for muxers\n");
+ fprintf(stderr, " that handle large pts poorly, like e.g. MP4)\n");
+ fprintf(stderr, " --flat-audio start with most audio processing turned off\n");
+ fprintf(stderr, " (can be overridden by e.g. --enable-limiter)\n");
+ fprintf(stderr, " --gain-staging=DB set initial gain staging to the given value\n");
+ fprintf(stderr, " (--disable-gain-staging-auto)\n");
+ fprintf(stderr, " --disable-locut turn off locut filter (also --enable)\n");
+ fprintf(stderr, " --disable-gain-staging-auto turn off automatic gain staging (also --enable)\n");
+ fprintf(stderr, " --disable-compressor turn off regular compressor (also --enable)\n");
+ fprintf(stderr, " --disable-limiter turn off limiter (also --enable)\n");
+ fprintf(stderr, " --disable-makeup-gain-auto turn off auto-adjustment of final makeup gain (also --enable)\n");
+ fprintf(stderr, " --disable-alsa-output disable audio monitoring via ALSA\n");
+ fprintf(stderr, " --no-flush-pbos do not explicitly signal texture data uploads\n");
+ fprintf(stderr, " (will give display corruption, but makes it\n");
+ fprintf(stderr, " possible to run with apitrace in real time)\n");
+ fprintf(stderr, " --print-video-latency print out measurements of video latency on stdout\n");
+ fprintf(stderr, " --max-input-queue-frames=FRAMES never keep more than FRAMES frames for each card\n");
+ fprintf(stderr, " (default 6, minimum 1)\n");
+ fprintf(stderr, " --audio-queue-length-ms=MS length of audio resampling queue (default 100.0)\n");
+ fprintf(stderr, " --output-ycbcr-coefficients={rec601,rec709,auto}\n");
+ fprintf(stderr, " Y'CbCr coefficient standard of output (default auto)\n");
+ fprintf(stderr, " auto is rec601, unless --output-card is used\n");
+ fprintf(stderr, " and a Rec. 709 mode (typically HD modes) is in use\n");
+ fprintf(stderr, " --output-buffer-frames=NUM number of frames in output buffer for --output-card,\n");
+ fprintf(stderr, " can be fractional (default 6.0); note also\n");
+ fprintf(stderr, " the audio queue can't be much longer than this\n");
+ fprintf(stderr, " --output-slop-frames=NUM if more less than this number of frames behind for\n");
+ fprintf(stderr, " --output-card, try to submit anyway instead of\n");
+ fprintf(stderr, " dropping the frame (default 0.5)\n");
+ fprintf(stderr, " --timecode-stream show timestamp and timecode in stream\n");
+ fprintf(stderr, " --timecode-stdout show timestamp and timecode on standard output\n");
+ fprintf(stderr, " --10-bit-input use 10-bit video input (requires compute shaders)\n");
+}
+