static void mp_media_next_audio(mp_media_t *m)
{
struct mp_decode *d = &m->a;
struct obs_source_audio audio = {0};
AVFrame *f = d->frame;
if (!mp_media_can_play_frame(m, d))
return;
d->frame_ready = false;
if (!m->a_cb)
return;
for (size_t i = 0; i < MAX_AV_PLANES; i++)
audio.data[i] = f->data[i];
audio.samples_per_sec = f->sample_rate * m->speed / 100;
audio.speakers = convert_speaker_layout(f->channels);
audio.format = convert_sample_format(f->format);
audio.frames = f->nb_samples;
audio.timestamp = m->base_ts + d->frame_pts - m->start_ts +
m->play_sys_ts - base_sys_ts;
if (audio.format == AUDIO_FORMAT_UNKNOWN)
return;
m->a_cb(m->opaque, &audio);
}
bool ffmpeg_decode_audio(struct ffmpeg_decode *decode,
uint8_t *data, size_t size,
struct obs_source_audio *audio,
bool *got_output)
{
AVPacket packet = {0};
int got_frame = false;
int ret = 0;
*got_output = false;
copy_data(decode, data, size);
av_init_packet(&packet);
packet.data = decode->packet_buffer;
packet.size = (int)size;
if (!decode->frame) {
decode->frame = av_frame_alloc();
if (!decode->frame)
return false;
}
if (data && size)
ret = avcodec_send_packet(decode->decoder, &packet);
if (ret == 0)
ret = avcodec_receive_frame(decode->decoder, decode->frame);
got_frame = (ret == 0);
if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
ret = 0;
if (ret < 0)
return false;
else if (!got_frame)
return true;
for (size_t i = 0; i < MAX_AV_PLANES; i++)
audio->data[i] = decode->frame->data[i];
audio->samples_per_sec = decode->frame->sample_rate;
audio->format = convert_sample_format(decode->frame->format);
audio->speakers =
convert_speaker_layout((uint8_t)decode->decoder->channels);
audio->frames = decode->frame->nb_samples;
if (audio->format == AUDIO_FORMAT_UNKNOWN)
return false;
*got_output = true;
return true;
}
int ffmpeg_decode_audio(struct ffmpeg_decode *decode,
uint8_t *data, size_t size,
struct obs_source_audio *audio,
bool *got_output)
{
AVPacket packet = {0};
int got_frame = false;
int len;
*got_output = false;
copy_data(decode, data, size);
av_init_packet(&packet);
packet.data = decode->packet_buffer;
packet.size = (int)size;
if (!decode->frame) {
decode->frame = av_frame_alloc();
if (!decode->frame)
return -1;
}
len = avcodec_decode_audio4(decode->decoder, decode->frame, &got_frame,
&packet);
if (len <= 0 || !got_frame)
return len;
for (size_t i = 0; i < MAX_AV_PLANES; i++)
audio->data[i] = decode->frame->data[i];
audio->samples_per_sec = decode->frame->sample_rate;
audio->speakers = (enum speaker_layout)decode->decoder->channels;
audio->format = convert_sample_format(decode->frame->format);
audio->frames = decode->frame->nb_samples;
if (audio->format == AUDIO_FORMAT_UNKNOWN)
return 0;
*got_output = true;
return len;
}