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lavc: update pkt_duration for skipped samples.

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Also: factor the the computation of the timestamp difference.
This commit is contained in:
Nicolas George 2012-07-15 16:24:59 +02:00
parent d853ed46b1
commit cd08900393
1 changed files with 7 additions and 2 deletions
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9
libavcodec/utils.c
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@ -1664,10 +1664,15 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
if(avctx->pkt_timebase.num && avctx->sample_rate) {
int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
(AVRational){1, avctx->sample_rate},
avctx->pkt_timebase);
if(frame->pkt_pts!=AV_NOPTS_VALUE)
frame->pkt_pts += av_rescale_q(avctx->internal->skip_samples,(AVRational){1, avctx->sample_rate}, avctx->pkt_timebase);
frame->pkt_pts += diff_ts;
if(frame->pkt_dts!=AV_NOPTS_VALUE)
frame->pkt_dts += av_rescale_q(avctx->internal->skip_samples,(AVRational){1, avctx->sample_rate}, avctx->pkt_timebase);
frame->pkt_dts += diff_ts;
if (frame->pkt_duration >= diff_ts)
frame->pkt_duration -= diff_ts;
} else {
av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
}