return ret;
}
+int av_get_output_timestamp(struct AVFormatContext *s, int stream,
+ int64_t *dts, int64_t *wall)
+{
+ if (!s->oformat || !s->oformat->get_output_timestamp)
+ return AVERROR(ENOSYS);
+ s->oformat->get_output_timestamp(s, stream, dts, wall);
+ return 0;
+}
++
+ int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
+ AVFormatContext *src)
+ {
+ AVPacket local_pkt;
+
+ local_pkt = *pkt;
+ local_pkt.stream_index = dst_stream;
+ if (pkt->pts != AV_NOPTS_VALUE)
+ local_pkt.pts = av_rescale_q(pkt->pts,
+ src->streams[pkt->stream_index]->time_base,
+ dst->streams[dst_stream]->time_base);
+ if (pkt->dts != AV_NOPTS_VALUE)
+ local_pkt.dts = av_rescale_q(pkt->dts,
+ src->streams[pkt->stream_index]->time_base,
+ dst->streams[dst_stream]->time_base);
++ if (pkt->duration)
++ local_pkt.duration = av_rescale_q(pkt->duration,
++ src->streams[pkt->stream_index]->time_base,
++ dst->streams[dst_stream]->time_base);
+ return av_write_frame(dst, &local_pkt);
+ }