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authorStefano Sabatini <stefasab@gmail.com>2014-01-08 15:43:25 +0100
committerStefano Sabatini <stefasab@gmail.com>2014-01-09 10:54:38 +0100
commit094c500caf0c2a67792f2ee8238f065926aebfc4 (patch)
treea933131ab08fec7d6f2b6861472ec8307817374f /doc
parent8d22d37e548eea57747005aecbdfa2f76e59f19a (diff)
downloadffmpeg-094c500caf0c2a67792f2ee8238f065926aebfc4.tar.gz
examples/muxing: set timestamps in output audio packet
In particular, fix trac ticket #3231.
Diffstat (limited to 'doc')
-rw-r--r--doc/examples/muxing.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c
index 7d80e1c39e..bbc66d693d 100644
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@@ -132,6 +132,7 @@ static int max_dst_nb_samples;
uint8_t **dst_samples_data;
int dst_samples_linesize;
int dst_samples_size;
+int samples_count;
struct SwrContext *swr_ctx = NULL;
@@ -269,8 +270,10 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
}
audio_frame->nb_samples = dst_nb_samples;
+ audio_frame->pts = av_rescale_q(samples_count, (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);
+ samples_count += dst_nb_samples;
ret = avcodec_encode_audio2(c, &pkt, audio_frame, &got_packet);
if (ret < 0) {
@@ -281,6 +284,10 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
if (!got_packet)
return;
+ /* rescale output packet timestamp values from codec to stream timebase */
+ pkt.pts = av_rescale_q_rnd(pkt.pts, c->time_base, st->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
+ pkt.dts = av_rescale_q_rnd(pkt.dts, c->time_base, st->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
+ pkt.duration = av_rescale_q(pkt.duration, c->time_base, st->time_base);
pkt.stream_index = st->index;
/* Write the compressed frame to the media file. */