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fftools/ffmpeg: stop using InputStream.pts for generating video timestamps 

This was added in 380db56928 as a
temporary crutch that is not needed anymore. The only case where this
code can be triggered is the very first frame, for which InputStream.pts
is always equal to 0.
This commit is contained in:
Anton Khirnov 2023-04-25 23:11:25 +02:00
parent d85c6aba0c
commit ef69f6a9d2
1 changed files with 2 additions and 5 deletions
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7
fftools/ffmpeg.c
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@ -1122,12 +1122,9 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_
best_effort_timestamp = ist->cfr_next_pts++;
// no timestamp available - extrapolate from previous frame duration
if (best_effort_timestamp == AV_NOPTS_VALUE &&
ist->last_frame_pts != AV_NOPTS_VALUE)
best_effort_timestamp = ist->last_frame_pts + ist->last_frame_duration_est;
if (best_effort_timestamp == AV_NOPTS_VALUE)
best_effort_timestamp = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ist->st->time_base);
best_effort_timestamp = ist->last_frame_pts == AV_NOPTS_VALUE ? 0 :
ist->last_frame_pts + ist->last_frame_duration_est;
if(best_effort_timestamp != AV_NOPTS_VALUE) {
int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);