static av_cold int audio_write_header(AVFormatContext *s1)
{
AlsaData *s = s1->priv_data;
- AVStream *st;
+ AVStream *st = NULL;
unsigned int sample_rate;
enum AVCodecID codec_id;
int res;
+ if (s1->nb_streams != 1 || s1->streams[0]->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
+ av_log(s1, AV_LOG_ERROR, "Only a single audio stream is supported.\n");
+ return AVERROR(EINVAL);
+ }
st = s1->streams[0];
+
sample_rate = st->codec->sample_rate;
codec_id = st->codec->codec_id;
res = ff_alsa_open(s1, SND_PCM_STREAM_PLAYBACK, &sample_rate,
uint8_t *buf = pkt->data;
size /= s->frame_size;
+ if (pkt->dts != AV_NOPTS_VALUE)
+ s->timestamp = pkt->dts;
+ s->timestamp += pkt->duration ? pkt->duration : size;
+
if (s->reorder_func) {
if (size > s->reorder_buf_size)
if (ff_alsa_extend_reorder_buf(s, size))
snd_pcm_sframes_t delay = 0;
*wall = av_gettime();
snd_pcm_delay(s->h, &delay);
- *dts = s1->streams[0]->cur_dts - delay;
+ *dts = s->timestamp - delay;
}
AVOutputFormat ff_alsa_muxer = {