[FFmpeg-devel] [PATCH] examples/muxing: set timestamps in output audio packet

[Stefano Sabatini]

In particular, fix trac ticket #3231.
---
 doc/examples/muxing.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c
index 33b2989..cf3e336 100644
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@@ -270,6 +270,7 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
     }
 
     audio_frame->nb_samples = dst_nb_samples;
+    audio_frame->pts += av_rescale_q(dst_nb_samples, (AVRational){1, c->sample_rate}, c->time_base);
     avcodec_fill_audio_frame(audio_frame, c->channels, c->sample_fmt,
                              dst_samples_data[0], dst_samples_size, 0);
 
@@ -280,6 +281,13 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
     }
 
     pkt.stream_index = st->index;
+    /* rescale output packet timestamp values */
+    if (pkt.pts != AV_NOPTS_VALUE)
+        pkt.pts = av_rescale_q(pkt.pts, c->time_base, st->time_base);
+    if (pkt.dts != AV_NOPTS_VALUE)
+        pkt.dts = av_rescale_q(pkt.dts, c->time_base, st->time_base);
+    if (pkt.duration)
+        pkt.duration = av_rescale_q(pkt.duration, c->time_base, st->time_base);
 
     /* Write the compressed frame to the media file. */
     ret = av_interleaved_write_frame(oc, &pkt);
-- 
1.8.1.2