diff options
Diffstat (limited to 'ffmpeg.c')
| -rw-r--r-- | ffmpeg.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -205,6 +205,8 @@ static int audio_codec_tag = 0; static int mux_rate= 0; static int mux_packet_size= 0; +static float mux_preload= 0.5; +static float mux_max_delay= 0.7; static int64_t recording_time = 0; static int64_t start_time = 0; @@ -3328,6 +3330,8 @@ static void opt_output_file(const char *filename) oc->packet_size= mux_packet_size; oc->mux_rate= mux_rate; + oc->preload= (int)(mux_preload*AV_TIME_BASE); + oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE); /* reset some options */ file_oformat = NULL; @@ -3692,6 +3696,12 @@ static void opt_target(const char *arg) mux_packet_size= 2324; mux_rate= 2352 * 75 * 8; + /* We have to offset the PTS, so that it is consistent with the SCR. + SCR starts at 36000, but the first two packs contain only padding + and the first pack from the other stream, respectively, may also have + been written before. + So the real data starts at SCR 36000+3*1200. */ + mux_preload= (36000+3*1200) / 90000.0; //0.44 } else if(!strcmp(arg, "svcd")) { opt_video_codec("mpeg2video"); @@ -3916,6 +3926,8 @@ const OptionDef options[] = { /* muxer options */ { "muxrate", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_rate}, "set mux rate", "rate" }, { "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" }, + { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" }, + { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" }, { NULL, }, }; |