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Add -t option to ffplay. 

Patch by Robert Krüger, krueger signal7 de

Originally committed as revision 22764 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Robert Krüger 2010-04-01 20:56:23 +00:00 committed by Carl Eugen Hoyos
parent 00bbc09309
commit d834d63b0e
2 changed files with 20 additions and 3 deletions
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2
doc/ffplay-doc.texi
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@ -45,6 +45,8 @@ Disable audio.
Disable video.
@item -ss @var{pos}
Seek to a given position in seconds.
@item -t @var{duration}
play <duration> seconds of audio/video
@item -bytes
Seek by bytes.
@item -nodisp

21
ffplay.c
View File

@ -244,6 +244,7 @@ static int display_disable;
static int show_status = 1;
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
static int64_t start_time = AV_NOPTS_VALUE;
static int64_t duration = AV_NOPTS_VALUE;
static int debug = 0;
static int debug_mv = 0;
static int step = 0;
@ -2360,6 +2361,7 @@ static int decode_thread(void *arg)
AVPacket pkt1, *pkt = &pkt1;
AVFormatParameters params, *ap = &params;
int eof=0;
int pkt_in_play_range = 0;
ic = avformat_alloc_context();
@ -2559,11 +2561,17 @@ static int decode_thread(void *arg)
SDL_Delay(100); /* wait for user event */
continue;
}
if (pkt->stream_index == is->audio_stream) {
/* check if packet is in play range specified by user, then queue, otherwise discard */
pkt_in_play_range = duration == AV_NOPTS_VALUE ||
(pkt->pts - ic->streams[pkt->stream_index]->start_time) *
av_q2d(ic->streams[pkt->stream_index]->time_base) -
(double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
<= ((double)duration/1000000);
if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
packet_queue_put(&is->audioq, pkt);
} else if (pkt->stream_index == is->video_stream) {
} else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
packet_queue_put(&is->videoq, pkt);
} else if (pkt->stream_index == is->subtitle_stream) {
} else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
packet_queue_put(&is->subtitleq, pkt);
} else {
av_free_packet(pkt);
@ -2971,6 +2979,12 @@ static int opt_seek(const char *opt, const char *arg)
return 0;
}
static int opt_duration(const char *opt, const char *arg)
{
duration = parse_time_or_die(opt, arg, 1);
return 0;
}
static int opt_debug(const char *opt, const char *arg)
{
av_log_set_level(99);
@ -3005,6 +3019,7 @@ static const OptionDef options[] = {
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
{ "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
{ "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
{ "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },