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authorMichael Niedermayer <michaelni@gmx.at>2013-07-07 15:03:12 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-07-07 15:25:34 +0200
commitc7cfd4cce98a858c08e880ac7075737c78f98be8 (patch)
tree2a9fba99dd5ac14d04e954a28b364b8f4a67153f
parent19d416333114bd9bc2a76132709bf0a4463605bd (diff)
downloadffmpeg-c7cfd4cce98a858c08e880ac7075737c78f98be8.tar.gz
avformat_find_stream_info: use fps_dts as last resort to determine duration
Fixes long delay with some hardware generated h264 in ts Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavformat/utils.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 6acc7c848c..c6aa87b506 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2829,6 +2829,15 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
if (st->avg_frame_rate.num > 0)
t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
+ if ( t==0
+ && st->codec_info_nb_frames>15
+ && st->codec->codec_type == AVMEDIA_TYPE_VIDEO
+ && ( !strcmp(ic->iformat->name, "mpeg") // this breaks some flvs thus use only for mpegps/ts for now (for ts we have a sample that needs it)
+ || !strcmp(ic->iformat->name, "mpegts"))
+ && st->info->fps_first_dts != AV_NOPTS_VALUE
+ && st->info->fps_last_dts != AV_NOPTS_VALUE)
+ t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
+
if (t >= ic->max_analyze_duration) {
av_log(ic, AV_LOG_VERBOSE, "max_analyze_duration %d reached at %"PRId64" microseconds\n", ic->max_analyze_duration, t);
break;