]> git.sesse.net Git - nageru/blobdiff - nageru/flags.cpp
Rename global_flags.srt_output_latency to have a proper unit.
[nageru] / nageru / flags.cpp
index ed52dc8933fba1f36a1a05c75f8ef85fae7d0691..ec3b607e564cdaff3f4ff882dd91d956265d421a 100644 (file)
@@ -15,13 +15,17 @@ Flags global_flags;
 enum LongOption {
        OPTION_HELP = 1000,
        OPTION_FULLSCREEN,
+       OPTION_MAX_NUM_CARDS,
        OPTION_MULTICHANNEL,
        OPTION_MIDI_MAPPING,
        OPTION_DEFAULT_HDMI_INPUT,
        OPTION_FAKE_CARDS_AUDIO,
+       OPTION_V4L_OUTPUT,
        OPTION_HTTP_UNCOMPRESSED_VIDEO,
        OPTION_HTTP_X264_VIDEO,
+       OPTION_HTTP_AV1_VIDEO,
        OPTION_RECORD_X264_VIDEO,
+       OPTION_SEPARATE_X264_DISK_ENCODE,
        OPTION_X264_PRESET,
        OPTION_X264_TUNE,
        OPTION_X264_SPEEDCONTROL,
@@ -31,11 +35,28 @@ enum LongOption {
        OPTION_X264_VBV_BUFSIZE,
        OPTION_X264_VBV_MAX_BITRATE,
        OPTION_X264_PARAM,
+       OPTION_X264_SEPARATE_DISK_PRESET,
+       OPTION_X264_SEPARATE_DISK_TUNE,
+       OPTION_X264_SEPARATE_DISK_BITRATE,
+       OPTION_X264_SEPARATE_DISK_CRF,
+       OPTION_X264_SEPARATE_DISK_PARAM,
+       OPTION_AV1_PRESET,
+       OPTION_AV1_BITRATE,
+       OPTION_AV1_FPS,
+       OPTION_AV1_PARAM,
        OPTION_HTTP_MUX,
        OPTION_HTTP_COARSE_TIMEBASE,
        OPTION_HTTP_AUDIO_CODEC,
        OPTION_HTTP_AUDIO_BITRATE,
        OPTION_HTTP_PORT,
+       OPTION_SRT_PORT,
+       OPTION_NO_SRT,
+       OPTION_SRT_DESTINATION,
+       OPTION_SRT_STREAMID,
+       OPTION_SRT_PASSPHRASE,
+       OPTION_SRT_YOUTUBE_STREAM_KEY,
+       OPTION_SRT_LATENCY,
+       OPTION_NO_TRANSCODE_VIDEO,
        OPTION_NO_TRANSCODE_AUDIO,
        OPTION_DISABLE_AUDIO,
        OPTION_FLAT_AUDIO,
@@ -58,9 +79,11 @@ enum LongOption {
        OPTION_OUTPUT_YCBCR_COEFFICIENTS,
        OPTION_OUTPUT_BUFFER_FRAMES,
        OPTION_OUTPUT_SLOP_FRAMES,
+       OPTION_OUTPUT_CARD_UNSYNCHRONIZED,
        OPTION_TIMECODE_STREAM,
        OPTION_TIMECODE_STDOUT,
        OPTION_QUICK_CUT_KEYS,
+       OPTION_10_BIT,
        OPTION_10_BIT_INPUT,
        OPTION_10_BIT_OUTPUT,
        OPTION_INPUT_YCBCR_INTERPRETATION,
@@ -90,13 +113,13 @@ map<unsigned, unsigned> parse_mjpeg_export_cards(char *optarg)
                        fprintf(stderr, "ERROR: Invalid range %u-%u in --mjpeg-export-cards=\n", range_begin, range_end);
                        exit(1);
                }
-               if (range_end >= unsigned(global_flags.num_cards)) {
+               if (range_end >= unsigned(global_flags.max_num_cards)) {
                        // There are situations where we could possibly want to
                        // include FFmpeg inputs (CEF inputs are unlikely),
                        // but they're not necessarily in 4:2:2 Y'CbCr, so it would
                        // require more functionality the the JPEG encoder.
                        fprintf(stderr, "ERROR: Asked for (zero-indexed) card %u in --mjpeg-export-cards=, but there are only %u cards\n",
-                               range_end, global_flags.num_cards);
+                               range_end, global_flags.max_num_cards);
                        exit(1);
                }
                for (unsigned card_idx = range_begin; card_idx <= range_end; ++card_idx) {
@@ -130,7 +153,8 @@ void usage(Program program)
        fprintf(stderr, "  -w, --width                     output width in pixels (default 1280)\n");
        fprintf(stderr, "  -h, --height                    output height in pixels (default 720)\n");
        if (program == PROGRAM_NAGERU) {
-               fprintf(stderr, "  -c, --num-cards                 set number of input cards (default 2)\n");
+               fprintf(stderr, "  -c, --num-cards                 set minimum number of input cards (default 2)\n");
+               fprintf(stderr, "      --max-num-cards             set maximum number of input cards (default %d)\n", MAX_VIDEO_CARDS);
                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");
@@ -143,37 +167,68 @@ void usage(Program program)
                fprintf(stderr, "      --midi-mapping=FILE         start with the given MIDI controller mapping (implies --multichannel)\n");
                fprintf(stderr, "      --default-hdmi-input        default to HDMI over SDI inputs for cards that have both\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, "      --v4l-output=DEVICE         send video (no audio) to V4L2 output/loopback\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, "      --separate-x264-disk-encode run a different x264 encoder for disk recording\n");
+               fprintf(stderr, "                                    (implies --record-x264-video)\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-crf=VALUE            quality-based VBR (-12 to 51), incompatible with --x264-bitrate and VBV\n");
-       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-crf=VALUE            quality-based VBR (-12 to 51), incompatible with --x264-bitrate\n");
        fprintf(stderr, "      --x264-param=NAME[,VALUE]   set any x264 parameter, for fine tuning\n");
+       if (program == PROGRAM_NAGERU) {
+               fprintf(stderr, "      --x264-separate-disk-preset x264 quality preset (default " X264_DEFAULT_PRESET ")\n");
+               fprintf(stderr, "      --x264-separate-disk-tune   x264 tuning (default " X264_DEFAULT_TUNE ", can be blank)\n");
+               fprintf(stderr, "      --x264-separate-disk-bitrate  x264 bitrate (in kilobit/sec, default %d)\n",
+                       DEFAULT_X264_OUTPUT_BIT_RATE);
+               fprintf(stderr, "      --x264-separate-disk-crf=VALUE  quality-based VBR (-12 to 51), \n");
+               fprintf(stderr, "                                  incompatible with --x264-separate-disk-bitrate\n");
+               fprintf(stderr, "      --x264-separate-disk-param=NAME[,VALUE] set any x264 parameter, for fine tuning\n");
+       }
+#ifdef HAVE_AV1
+       fprintf(stderr, "      --http-av1-video            send AV1-compressed video to HTTP clients and SRT output\n");
+       fprintf(stderr, "      --av1-preset                SVT-AV1 quality preset (default %d, from -2 to 13)\n",
+               DEFAULT_AV1_PRESET);
+       fprintf(stderr, "      --av1-bitrate               AV1 bitrate (in kilobit/sec, default %d)\n",
+               DEFAULT_AV1_OUTPUT_BIT_RATE);
+       fprintf(stderr, "      --av1-fps=NUM[/DEN]         AV1 encoded frame rate (default %d/%d)\n",
+               DEFAULT_AV1_FPS_NUM, DEFAULT_AV1_FPS_DEN);
+       fprintf(stderr, "      --av1-param=NAME[,VALUE]    set any SVT-AV1 parameter, for fine tuning\n");
+#endif
        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, "      --http-audio-codec=NAME     audio codec to use for HTTP streams and SRT output\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, "      --http-audio-bitrate=KBITS  audio codec bit rate to use for HTTP streams and SRT output\n");
        fprintf(stderr, "                                  (default is %d, ignored unless --http-audio-codec is set)\n",
                DEFAULT_AUDIO_OUTPUT_BIT_RATE / 1000);
        fprintf(stderr, "      --http-port=PORT            which port to use for the built-in HTTP server\n");
        fprintf(stderr, "                                  (default is %d)\n", DEFAULT_HTTPD_PORT);
+#ifdef HAVE_SRT
+       fprintf(stderr, "      --srt-port=PORT             which port to use for receiving SRT streams\n");
+       fprintf(stderr, "                                  (default is %d)\n", DEFAULT_SRT_PORT);
+       fprintf(stderr, "      --no-srt                    disable receiving SRT streams\n");
+#endif
        if (program == PROGRAM_KAERU) {
+               fprintf(stderr, "      --no-transcode-video        copy encoded video raw from the source stream\n");
+               fprintf(stderr, "                                    (experimental, must be H.264)\n");
                fprintf(stderr, "      --no-transcode-audio        copy encoded audio raw from the source stream\n");
                fprintf(stderr, "                                    (requires --http-audio-codec= to be set)\n");
                fprintf(stderr, "      --disable-audio             do not include any audio in the stream\n");
        }
        if (program == PROGRAM_NAGERU) {
+#ifdef HAVE_SRT
+               fprintf(stderr, "      --srt-destination=HOST:PORT  send HTTP video stream also to given destination\n");
+               fprintf(stderr, "      --srt-streamid=STREAMID     SRT stream identifying ID\n");
+               fprintf(stderr, "      --srt-passphrase=PASSPHRASE  SRT encryption key\n");
+               fprintf(stderr, "      --srt-youtube-stream-key=KEY  shortcut for --srt-destination=a.srt.youtube.com:2010\n");
+               fprintf(stderr, "                                    --srt-streamid=#!::u=<KEY>,copy=0,encoder=Nageru\n");
+               fprintf(stderr, "      --srt-latency=MS            output SRT latency in milliseconds (default is %d)\n", DEFAULT_SRT_OUTPUT_LATENCY_MS);
+#endif
                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");
@@ -184,9 +239,6 @@ void usage(Program program)
                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");
@@ -201,12 +253,12 @@ void usage(Program program)
                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, "      --output-card-unsynchronized  if --output-card is in use, do _not_ use it as\n");
+               fprintf(stderr, "                                  master clock (may give jittery output and audio breakups)\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, "      --quick-cut-keys            enable direct cutting by Q, W, E, ... keys\n");
-               fprintf(stderr, "      --10-bit-input              use 10-bit video input (requires compute shaders)\n");
-               fprintf(stderr, "      --10-bit-output             use 10-bit video output (requires compute shaders,\n");
-               fprintf(stderr, "                                    implies --record-x264-video)\n");
+               fprintf(stderr, "      --10-bit                    use 10-bit color depth\n");
                fprintf(stderr, "      --input-ycbcr-interpretation=CARD,{rec601,rec709,auto}[,{limited,full}]\n");
                fprintf(stderr, "                                  Y'CbCr coefficient standard of card CARD (default auto)\n");
                fprintf(stderr, "                                    auto is rec601 for SD, rec709 for HD, always limited\n");
@@ -226,6 +278,7 @@ void parse_flags(Program program, int argc, char * const argv[])
                { "width", required_argument, 0, 'w' },
                { "height", required_argument, 0, 'h' },
                { "num-cards", required_argument, 0, 'c' },
+               { "max-num-cards", required_argument, 0, OPTION_MAX_NUM_CARDS },
                { "output-card", required_argument, 0, 'o' },
                { "theme", required_argument, 0, 't' },
                { "theme-dir", required_argument, 0, 'I' },
@@ -237,22 +290,43 @@ void parse_flags(Program program, int argc, char * const argv[])
                { "midi-mapping", required_argument, 0, OPTION_MIDI_MAPPING },
                { "default-hdmi-input", no_argument, 0, OPTION_DEFAULT_HDMI_INPUT },
                { "fake-cards-audio", no_argument, 0, OPTION_FAKE_CARDS_AUDIO },
-               { "http-uncompressed-video", no_argument, 0, OPTION_HTTP_UNCOMPRESSED_VIDEO },
+               { "v4l-output", required_argument, 0, OPTION_V4L_OUTPUT },
                { "http-x264-video", no_argument, 0, OPTION_HTTP_X264_VIDEO },
                { "record-x264-video", no_argument, 0, OPTION_RECORD_X264_VIDEO },
+               { "separate-x264-disk-encode", no_argument, 0, OPTION_SEPARATE_X264_DISK_ENCODE },
                { "x264-preset", required_argument, 0, OPTION_X264_PRESET },
                { "x264-tune", required_argument, 0, OPTION_X264_TUNE },
                { "x264-speedcontrol", no_argument, 0, OPTION_X264_SPEEDCONTROL },
-               { "x264-speedcontrol-verbose", no_argument, 0, OPTION_X264_SPEEDCONTROL_VERBOSE },
-               { "x264-bitrate", required_argument, 0, OPTION_X264_BITRATE },
                { "x264-crf", required_argument, 0, OPTION_X264_CRF },
-               { "x264-vbv-bufsize", required_argument, 0, OPTION_X264_VBV_BUFSIZE },
-               { "x264-vbv-max-bitrate", required_argument, 0, OPTION_X264_VBV_MAX_BITRATE },
                { "x264-param", required_argument, 0, OPTION_X264_PARAM },
+               { "x264-separate-disk-preset", required_argument, 0, OPTION_X264_SEPARATE_DISK_PRESET },
+               { "x264-separate-disk-tune", required_argument, 0, OPTION_X264_SEPARATE_DISK_TUNE },
+               { "x264-separate-disk-bitrate", required_argument, 0, OPTION_X264_SEPARATE_DISK_BITRATE },
+               { "x264-separate-disk-crf", required_argument, 0, OPTION_X264_SEPARATE_DISK_CRF },
+               { "x264-separate-disk-param", required_argument, 0, OPTION_X264_SEPARATE_DISK_PARAM },
+#ifdef HAVE_AV1
+               { "http-av1-video", no_argument, 0, OPTION_HTTP_AV1_VIDEO },
+               { "av1-preset", required_argument, 0, OPTION_AV1_PRESET },
+               { "av1-bitrate", required_argument, 0, OPTION_AV1_BITRATE },
+               { "av1-fps", required_argument, 0, OPTION_AV1_FPS },
+               { "av1-param", required_argument, 0, OPTION_AV1_PARAM },
+#endif
                { "http-mux", required_argument, 0, OPTION_HTTP_MUX },
                { "http-audio-codec", required_argument, 0, OPTION_HTTP_AUDIO_CODEC },
                { "http-audio-bitrate", required_argument, 0, OPTION_HTTP_AUDIO_BITRATE },
                { "http-port", required_argument, 0, OPTION_HTTP_PORT },
+#ifdef HAVE_SRT
+               { "srt-port", required_argument, 0, OPTION_SRT_PORT },
+#endif
+               { "no-srt", no_argument, 0, OPTION_NO_SRT },  // We silently allow this even without HAVE_SRT.
+#ifdef HAVE_SRT
+               { "srt-destination", required_argument, 0, OPTION_SRT_DESTINATION },
+               { "srt-streamid", required_argument, 0, OPTION_SRT_STREAMID },
+               { "srt-passphrase", required_argument, 0, OPTION_SRT_PASSPHRASE },
+               { "srt-youtube-stream-key", required_argument, 0, OPTION_SRT_YOUTUBE_STREAM_KEY },
+               { "srt-latency", required_argument, 0, OPTION_SRT_LATENCY },
+#endif
+               { "no-transcode-video", no_argument, 0, OPTION_NO_TRANSCODE_VIDEO },
                { "no-transcode-audio", no_argument, 0, OPTION_NO_TRANSCODE_AUDIO },
                { "disable-audio", no_argument, 0, OPTION_DISABLE_AUDIO },
                { "flat-audio", no_argument, 0, OPTION_FLAT_AUDIO },
@@ -268,20 +342,34 @@ void parse_flags(Program program, int argc, char * const argv[])
                { "disable-makeup-gain-auto", no_argument, 0, OPTION_DISABLE_MAKEUP_GAIN_AUTO },
                { "enable-makeup-gain-auto", no_argument, 0, OPTION_ENABLE_MAKEUP_GAIN_AUTO },
                { "disable-alsa-output", no_argument, 0, OPTION_DISABLE_ALSA_OUTPUT },
-               { "no-flush-pbos", no_argument, 0, OPTION_NO_FLUSH_PBOS },
                { "print-video-latency", no_argument, 0, OPTION_PRINT_VIDEO_LATENCY },
                { "max-input-queue-frames", required_argument, 0, OPTION_MAX_INPUT_QUEUE_FRAMES },
                { "audio-queue-length-ms", required_argument, 0, OPTION_AUDIO_QUEUE_LENGTH_MS },
                { "output-ycbcr-coefficients", required_argument, 0, OPTION_OUTPUT_YCBCR_COEFFICIENTS },
                { "output-buffer-frames", required_argument, 0, OPTION_OUTPUT_BUFFER_FRAMES },
                { "output-slop-frames", required_argument, 0, OPTION_OUTPUT_SLOP_FRAMES },
+               { "output-card-unsynchronized", no_argument, 0, OPTION_OUTPUT_CARD_UNSYNCHRONIZED },
                { "timecode-stream", no_argument, 0, OPTION_TIMECODE_STREAM },
                { "timecode-stdout", no_argument, 0, OPTION_TIMECODE_STDOUT },
                { "quick-cut-keys", no_argument, 0, OPTION_QUICK_CUT_KEYS },
-               { "10-bit-input", no_argument, 0, OPTION_10_BIT_INPUT },
-               { "10-bit-output", no_argument, 0, OPTION_10_BIT_OUTPUT },
+               { "10-bit", no_argument, 0, OPTION_10_BIT },
                { "input-ycbcr-interpretation", required_argument, 0, OPTION_INPUT_YCBCR_INTERPRETATION },
                { "mjpeg-export-cards", required_argument, 0, OPTION_MJPEG_EXPORT_CARDS },
+
+               // Do not explicitly signal texture data uploads (will give
+               // display corruption, but makes it possible to run with
+               // apitrace in real time). For developers only, so undocumented.
+               { "no-flush-pbos", no_argument, 0, OPTION_NO_FLUSH_PBOS },
+
+               // Output speedcontrol debugging statistics. For developers only,
+               // so undocumented (users can get this information from Prometheus
+               // statistics, too).
+               { "x264-speedcontrol-verbose", no_argument, 0, OPTION_X264_SPEEDCONTROL_VERBOSE },
+
+               // Deprecated variants.
+               { "10-bit-input", no_argument, 0, OPTION_10_BIT_INPUT },
+               { "10-bit-output", no_argument, 0, OPTION_10_BIT_OUTPUT },
+
                { 0, 0, 0, 0 }
        };
        vector<string> theme_dirs;
@@ -302,7 +390,10 @@ void parse_flags(Program program, int argc, char * const argv[])
                        global_flags.height = atoi(optarg);
                        break;
                case 'c':
-                       global_flags.num_cards = atoi(optarg);
+                       global_flags.min_num_cards = atoi(optarg);
+                       break;
+               case OPTION_MAX_NUM_CARDS:
+                       global_flags.max_num_cards = atoi(optarg);
                        break;
                case 'o':
                        global_flags.output_card = atoi(optarg);
@@ -352,8 +443,8 @@ void parse_flags(Program program, int argc, char * const argv[])
                case OPTION_FAKE_CARDS_AUDIO:
                        global_flags.fake_cards_audio = true;
                        break;
-               case OPTION_HTTP_UNCOMPRESSED_VIDEO:
-                       global_flags.uncompressed_video_to_http = true;
+               case OPTION_V4L_OUTPUT:
+                       global_flags.v4l_output_device = optarg;
                        break;
                case OPTION_HTTP_MUX:
                        global_flags.stream_mux_name = optarg;
@@ -367,6 +458,48 @@ void parse_flags(Program program, int argc, char * const argv[])
                case OPTION_HTTP_PORT:
                        global_flags.http_port = atoi(optarg);
                        break;
+#ifdef HAVE_SRT
+               case OPTION_SRT_PORT:
+                       global_flags.srt_port = atoi(optarg);
+                       break;
+#endif
+               case OPTION_NO_SRT:
+                       global_flags.srt_port = -1;
+                       break;
+#ifdef HAVE_SRT
+               case OPTION_SRT_DESTINATION: {
+                       const char *ptr = strrchr(optarg, ':');
+                       if (ptr == nullptr || strlen(optarg) < 3) {
+                               fprintf(stderr, "ERROR: --srt-destination must be of the form host:port\n");
+                               exit(1);
+                       }
+                       global_flags.srt_destination_host = string(optarg, ptr - optarg);
+                       if (global_flags.srt_destination_host[0] == '[' &&
+                           global_flags.srt_destination_host.back() == ']') {
+                               // Support [IPv6]:port, in a sort of hackish way.
+                               global_flags.srt_destination_host = global_flags.srt_destination_host.substr(1, global_flags.srt_destination_host.size() - 2);
+                       }
+                       global_flags.srt_destination_port = ptr + 1;
+                       break;
+               }
+               case OPTION_SRT_STREAMID:
+                       global_flags.srt_streamid = optarg;
+                       break;
+               case OPTION_SRT_PASSPHRASE:
+                       global_flags.srt_passphrase = optarg;
+                       break;
+               case OPTION_SRT_YOUTUBE_STREAM_KEY:
+                       global_flags.srt_destination_host = "a.srt.youtube.com";
+                       global_flags.srt_destination_port = "2010";
+                       global_flags.srt_streamid = string("#!::u=") + optarg + ",copy=0,encoder=Nageru " NAGERU_VERSION;
+                       break;
+               case OPTION_SRT_LATENCY:
+                       global_flags.srt_output_latency_ms = atoi(optarg);
+                       break;
+#endif
+               case OPTION_NO_TRANSCODE_VIDEO:
+                       global_flags.transcode_video = false;
+                       break;
                case OPTION_NO_TRANSCODE_AUDIO:
                        global_flags.transcode_audio = false;
                        break;
@@ -378,8 +511,15 @@ void parse_flags(Program program, int argc, char * const argv[])
                        global_flags.x264_video_to_http = true;
                        break;
                case OPTION_RECORD_X264_VIDEO:
+                       global_flags.x264_video_to_disk = true;
+                       break;
+               case OPTION_SEPARATE_X264_DISK_ENCODE:
                        global_flags.x264_video_to_disk = true;
                        global_flags.x264_video_to_http = true;
+                       global_flags.x264_separate_disk_encode = true;
+                       break;
+               case OPTION_HTTP_AV1_VIDEO:
+                       global_flags.av1_video_to_http = true;
                        break;
                case OPTION_X264_PRESET:
                        global_flags.x264_preset = optarg;
@@ -399,15 +539,47 @@ void parse_flags(Program program, int argc, char * const argv[])
                case OPTION_X264_CRF:
                        global_flags.x264_crf = atof(optarg);
                        break;
-               case OPTION_X264_VBV_BUFSIZE:
-                       global_flags.x264_vbv_buffer_size = atoi(optarg);
-                       break;
-               case OPTION_X264_VBV_MAX_BITRATE:
-                       global_flags.x264_vbv_max_bitrate = atoi(optarg);
-                       break;
                case OPTION_X264_PARAM:
                        global_flags.x264_extra_param.push_back(optarg);
                        break;
+               case OPTION_X264_SEPARATE_DISK_PRESET:
+                       global_flags.x264_separate_disk_preset = optarg;
+                       break;
+               case OPTION_X264_SEPARATE_DISK_TUNE:
+                       global_flags.x264_separate_disk_tune = optarg;
+                       break;
+               case OPTION_X264_SEPARATE_DISK_BITRATE:
+                       global_flags.x264_separate_disk_bitrate = atoi(optarg);
+                       break;
+               case OPTION_X264_SEPARATE_DISK_CRF:
+                       global_flags.x264_separate_disk_crf = atof(optarg);
+                       break;
+               case OPTION_X264_SEPARATE_DISK_PARAM:
+                       global_flags.x264_separate_disk_extra_param.push_back(optarg);
+                       break;
+               case OPTION_AV1_PRESET:
+                       global_flags.av1_preset = atoi(optarg);
+                       break;
+               case OPTION_AV1_BITRATE:
+                       global_flags.av1_bitrate = atoi(optarg);
+                       break;
+               case OPTION_AV1_FPS: {
+                       string str = optarg;
+                       const size_t pos = str.find('/');
+                       if (pos == string::npos) {
+                               global_flags.av1_fps_num = stoi(str);
+                               global_flags.av1_fps_den = 1;
+                       } else {
+                               const string num = str.substr(0, pos);
+                               const string den = str.substr(pos + 1);
+                               global_flags.av1_fps_num = stoi(num);
+                               global_flags.av1_fps_den = stoi(den);
+                       }
+                       break;
+               }
+               case OPTION_AV1_PARAM:
+                       global_flags.av1_extra_param.push_back(optarg);
+                       break;
                case OPTION_FLAT_AUDIO:
                        // If --flat-audio is given, turn off everything that messes with the sound,
                        // except the final makeup gain.
@@ -474,6 +646,9 @@ void parse_flags(Program program, int argc, char * const argv[])
                case OPTION_OUTPUT_SLOP_FRAMES:
                        global_flags.output_slop_frames = atof(optarg);
                        break;
+               case OPTION_OUTPUT_CARD_UNSYNCHRONIZED:
+                       global_flags.output_card_is_master = false;
+                       break;
                case OPTION_TIMECODE_STREAM:
                        global_flags.display_timecode_in_stream = true;
                        break;
@@ -484,13 +659,15 @@ void parse_flags(Program program, int argc, char * const argv[])
                        global_flags.enable_quick_cut_keys = true;
                        break;
                case OPTION_10_BIT_INPUT:
-                       global_flags.ten_bit_input = true;
+                       fprintf(stderr, "NOTE: --10-bit-input is a deprecated alias for --10-bit.\n");
+                       global_flags.bit_depth = 10;
                        break;
                case OPTION_10_BIT_OUTPUT:
-                       global_flags.ten_bit_output = true;
-                       global_flags.x264_video_to_disk = true;
-                       global_flags.x264_video_to_http = true;
-                       global_flags.x264_bit_depth = 10;
+                       fprintf(stderr, "NOTE: --10-bit-output is a deprecated alias for --10-bit.\n");
+                       global_flags.bit_depth = 10;
+                       break;
+               case OPTION_10_BIT:
+                       global_flags.bit_depth = 10;
                        break;
                case OPTION_INPUT_YCBCR_INTERPRETATION: {
                        char *ptr = strchr(optarg, ',');
@@ -563,17 +740,34 @@ void parse_flags(Program program, int argc, char * const argv[])
                }
        }
 
-       if (global_flags.uncompressed_video_to_http &&
-           global_flags.x264_video_to_http) {
-               fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
+       if (global_flags.x264_video_to_http +
+           global_flags.av1_video_to_http > 1) {
+               fprintf(stderr, "ERROR: --http-{x264,av1}-video are mutually incompatible\n");
                exit(1);
        }
-       if (global_flags.num_cards <= 0) {
+       if (global_flags.bit_depth == 10) {
+               global_flags.x264_video_to_disk = true;  // No 10-bit Quick Sync support.
+               if (!global_flags.av1_video_to_http) {
+                       global_flags.x264_video_to_http = true;
+               }
+       }
+       if (global_flags.x264_video_to_disk && !global_flags.av1_video_to_http) {
+               global_flags.x264_video_to_http = true;  // Quick Sync to HTTP but x264 to disk doesn't make sense.
+       }
+       if (global_flags.min_num_cards <= 0) {
                fprintf(stderr, "ERROR: --num-cards must be at least 1\n");
                exit(1);
        }
+       if (global_flags.max_num_cards <= 0) {
+               fprintf(stderr, "ERROR: --max-num-cards must be at least 1\n");
+               exit(1);
+       }
+       if (global_flags.max_num_cards < global_flags.min_num_cards) {
+               fprintf(stderr, "ERROR: --max-num-cards can not be lower than --num-cards\n");
+               exit(1);
+       }
        if (global_flags.output_card < -1 ||
-           global_flags.output_card >= global_flags.num_cards) {
+           global_flags.output_card >= global_flags.max_num_cards) {
                fprintf(stderr, "ERROR: --output-card points to a nonexistant card\n");
                exit(1);
        }
@@ -590,6 +784,9 @@ void parse_flags(Program program, int argc, char * const argv[])
        } else if (global_flags.x264_preset.empty()) {
                global_flags.x264_preset = X264_DEFAULT_PRESET;
        }
+       if (global_flags.x264_separate_disk_preset.empty()) {
+               global_flags.x264_separate_disk_preset = X264_DEFAULT_PRESET;
+       }
        if (!theme_dirs.empty()) {
                global_flags.theme_dirs = theme_dirs;
        }
@@ -605,8 +802,8 @@ void parse_flags(Program program, int argc, char * const argv[])
        }
 
        for (pair<int, int> mapping : global_flags.default_stream_mapping) {
-               if (mapping.second >= global_flags.num_cards) {
-                       fprintf(stderr, "ERROR: Signal %d mapped to card %d, which doesn't exist (try adjusting --num-cards)\n",
+               if (mapping.second >= global_flags.max_num_cards) {
+                       fprintf(stderr, "ERROR: Signal %d mapped to card %d, which doesn't exist (try adjusting --max-num-cards)\n",
                                mapping.first, mapping.second);
                        exit(1);
                }
@@ -666,17 +863,28 @@ void parse_flags(Program program, int argc, char * const argv[])
                        fprintf(stderr, "ERROR: --x264-bitrate and --x264-crf are mutually incompatible.\n");
                        exit(1);
                }
-               if (global_flags.x264_vbv_max_bitrate != -1 && global_flags.x264_vbv_buffer_size != -1) {
-                       fprintf(stderr, "WARNING: VBV settings are ignored with --x264-crf.\n");
-               }
        } else if (global_flags.x264_bitrate == -1) {
                global_flags.x264_bitrate = DEFAULT_X264_OUTPUT_BIT_RATE;
        }
 
+       if (!isinf(global_flags.x264_separate_disk_crf)) {  // CRF mode is selected.
+               if (global_flags.x264_separate_disk_bitrate != -1) {
+                       fprintf(stderr, "ERROR: --x264-separate-disk-bitrate and --x264-separate-disk-crf are mutually incompatible.\n");
+                       exit(1);
+               }
+       } else if (global_flags.x264_separate_disk_bitrate == -1) {
+               global_flags.x264_separate_disk_bitrate = DEFAULT_X264_OUTPUT_BIT_RATE;
+       }
+
        if (!card_to_mjpeg_stream_export_set) {
                // Fill in the default mapping (export all cards, in order).
-               for (unsigned card_idx = 0; card_idx < unsigned(global_flags.num_cards); ++card_idx) {
+               for (unsigned card_idx = 0; card_idx < unsigned(global_flags.max_num_cards); ++card_idx) {
                        global_flags.card_to_mjpeg_stream_export[card_idx] = card_idx;
                }
        }
+
+       if (global_flags.srt_destination_host == "a.srt.youtube.com" && global_flags.srt_passphrase.empty()) {
+               fprintf(stderr, "ERROR: Cannot stream to YouTube without --srt-passphrase (get it from the YouTube streaming console)\n");
+               exit(1);
+       }
 }