[FFmpeg-cvslog] lavc: update pkt_duration for skipped samples.

[Nicolas George]

ffmpeg | branch: master | Nicolas George <nicolas.george at normalesup.org> | Sun Jul 15 16:24:59 2012 +0200| [cd089003936030c506fb7a28e9a26e028b1aece0] | committer: Nicolas George

lavc: update pkt_duration for skipped samples.

Also: factor the the computation of the timestamp difference.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cd089003936030c506fb7a28e9a26e028b1aece0
---

 libavcodec/utils.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index dd9c0d1..63aa862 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -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");
                 }