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| author | Nicolas George <nicolas.george@normalesup.org> | 2011-06-30 19:46:02 +0200 |
|---|---|---|
| committer | Nicolas George <nicolas.george@normalesup.org> | 2011-07-01 09:49:32 +0200 |
| commit | 84c2d8af135695e829fb5ce5e8569d02678550a8 (patch) | |
| tree | 9c5bed97d42998bd9fb1be878c09bd379bbcabb0 | |
| parent | b442ca69d9d3cc50f00b43a25b200631cfb1e9ec (diff) | |
| download | ffmpeg-84c2d8af135695e829fb5ce5e8569d02678550a8.tar.gz | |
ALSA: implement get_output_timestamp.
| -rw-r--r-- | libavdevice/alsa-audio-enc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavdevice/alsa-audio-enc.c b/libavdevice/alsa-audio-enc.c index 22a1ea7ff6..0da22bb070 100644 --- a/libavdevice/alsa-audio-enc.c +++ b/libavdevice/alsa-audio-enc.c @@ -102,6 +102,17 @@ static int audio_write_packet(AVFormatContext *s1, AVPacket *pkt) return 0; } +static void +audio_get_output_timestamp(AVFormatContext *s1, int stream, + int64_t *dts, int64_t *wall) +{ + AlsaData *s = s1->priv_data; + snd_pcm_sframes_t delay = 0; + *wall = av_gettime(); + snd_pcm_delay(s->h, &delay); + *dts = s1->streams[0]->cur_dts - delay; +} + AVOutputFormat ff_alsa_muxer = { "alsa", NULL_IF_CONFIG_SMALL("ALSA audio output"), @@ -113,5 +124,6 @@ AVOutputFormat ff_alsa_muxer = { audio_write_header, audio_write_packet, ff_alsa_close, + .get_output_timestamp = audio_get_output_timestamp, .flags = AVFMT_NOFILE, }; |