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Code Issues Releases Activity

ffmpeg: Use guess_correct_pts() to set decoded picture timestamps

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Originally committed as revision 25431 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alexander Strange 2010-10-10 02:17:26 +00:00
parent 1e6f8d53fc
commit 0ff4f0c0fc
1 changed files with 8 additions and 0 deletions
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ffmpeg.c
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@ -312,6 +312,7 @@ typedef struct AVInputStream {
int64_t next_pts; /* synthetic pts for cases where pkt.pts
is not defined */
int64_t pts; /* current pts */
PtsCorrectionContext pts_ctx;
int is_start; /* is 1 at the start and after a discontinuity */
int showed_multi_packet_warning;
int is_past_recording_time;
@ -1542,6 +1543,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
void *buffer_to_free;
static unsigned int samples_size= 0;
AVSubtitle subtitle, *subtitle_to_free;
int64_t pkt_pts = AV_NOPTS_VALUE;
#if CONFIG_AVFILTER
int frame_available;
#endif
@ -1564,6 +1566,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
if(pkt->dts != AV_NOPTS_VALUE)
ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
if(pkt->pts != AV_NOPTS_VALUE)
pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
//while we have more to decode or while the decoder did output something on EOF
while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
@ -1616,6 +1620,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
/* XXX: allocate picture correctly */
avcodec_get_frame_defaults(&picture);
ist->st->codec->reordered_opaque = pkt_pts;
pkt_pts = AV_NOPTS_VALUE;
ret = avcodec_decode_video2(ist->st->codec,
&picture, &got_picture, &avpkt);
@ -1626,6 +1632,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
/* no picture yet */
goto discard_packet;
}
ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
if (ist->st->codec->time_base.num != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
ist->next_pts += ((int64_t)AV_TIME_BASE *
@ -2414,6 +2421,7 @@ static int transcode(AVFormatContext **output_files,
st= ist->st;
ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
ist->next_pts = AV_NOPTS_VALUE;
init_pts_correction(&ist->pts_ctx);
ist->is_start = 1;
}