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; }