Add support for transcoding the audio in Kaeru (on by default).

[nageru] / flags.cpp

diff --git a/flags.cpp b/flags.cpp
index 773750d961afb5ec735939345c9d8e0f382e9740..c65903abacda4fc7b98911f27dd165569b1bfcd8 100644 (file)
--- a/flags.cpp
+++ b/flags.cpp
@@ -33,6 +33,7 @@ enum LongOption {
        OPTION_HTTP_COARSE_TIMEBASE,
        OPTION_HTTP_AUDIO_CODEC,
        OPTION_HTTP_AUDIO_BITRATE,
+       OPTION_NO_TRANSCODE_AUDIO,
        OPTION_FLAT_AUDIO,
        OPTION_GAIN_STAGING,
        OPTION_DISABLE_LOCUT,
@@ -107,6 +108,10 @@ void usage(Program program)
        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);
+       if (program == PROGRAM_KAERU) {
+               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, "      --http-coarse-timebase      use less timebase for HTTP (recommended for muxers\n");
        fprintf(stderr, "                                  that handle large pts poorly, like e.g. MP4)\n");
        if (program == PROGRAM_NAGERU) {
@@ -182,6 +187,7 @@ void parse_flags(Program program, int argc, char * const argv[])
                { "http-coarse-timebase", no_argument, 0, OPTION_HTTP_COARSE_TIMEBASE },
                { "http-audio-codec", required_argument, 0, OPTION_HTTP_AUDIO_CODEC },
                { "http-audio-bitrate", required_argument, 0, OPTION_HTTP_AUDIO_BITRATE },
+               { "no-transcode-audio", no_argument, 0, OPTION_NO_TRANSCODE_AUDIO },
                { "flat-audio", no_argument, 0, OPTION_FLAT_AUDIO },
                { "gain-staging", required_argument, 0, OPTION_GAIN_STAGING },
                { "disable-locut", no_argument, 0, OPTION_DISABLE_LOCUT },
@@ -288,6 +294,9 @@ void parse_flags(Program program, int argc, char * const argv[])
                case OPTION_HTTP_AUDIO_BITRATE:
                        global_flags.stream_audio_codec_bitrate = atoi(optarg) * 1000;
                        break;
+               case OPTION_NO_TRANSCODE_AUDIO:
+                       global_flags.transcode_audio = false;
+                       break;
                case OPTION_HTTP_X264_VIDEO:
                        global_flags.x264_video_to_http = true;
                        break;
@@ -476,6 +485,11 @@ void parse_flags(Program program, int argc, char * const argv[])
                fprintf(stderr, "ERROR: --output-card points to a nonexistant card\n");
                exit(1);
        }
+       if (!global_flags.transcode_audio && global_flags.stream_audio_codec_name.empty()) {
+               fprintf(stderr, "ERROR: If not transcoding audio, you must specify ahead-of-time what audio codec is in use\n");
+               fprintf(stderr, "       (using --http-audio-codec).\n");
+               exit(1);
+       }
        if (global_flags.x264_speedcontrol) {
                if (!global_flags.x264_preset.empty() && global_flags.x264_preset != "faster") {
                        fprintf(stderr, "WARNING: --x264-preset is overridden by --x264-speedcontrol (implicitly uses \"faster\" as base preset)\n");