static Bool audiobuffer_get_config(GF_AudioInterface *aifc, Bool for_reconf)
{
AudioBufferStack *st = (AudioBufferStack *) gf_node_get_private( ((GF_AudioInput *) aifc->callback)->owner);
if (gf_mixer_must_reconfig(st->am)) {
if (gf_mixer_reconfig(st->am)) {
if (st->buffer) gf_free(st->buffer);
st->buffer = NULL;
st->buffer_size = 0;
}
gf_mixer_get_config(st->am, &aifc->samplerate, &aifc->chan, &aifc->bps, &aifc->ch_cfg);
st->is_init = (aifc->samplerate && aifc->chan && aifc->bps) ? 1 : 0;
assert(st->is_init);
if (!st->is_init) aifc->samplerate = aifc->chan = aifc->bps = aifc->ch_cfg = 0;
/*this will force invalidation*/
return (for_reconf && st->is_init) ? 1 : 0;
}
return st->is_init;
}
GF_EXPORT
GF_Err gf_sc_add_audio_listener(GF_Compositor *compositor, GF_AudioListener *al)
{
GF_AudioMixer *mixer;
u32 sr, ch, bps, ch_cfg;
if (!compositor || !al || !al->on_audio_frame || !al->on_audio_reconfig) return GF_BAD_PARAM;
if (!compositor->audio_renderer) return GF_NOT_SUPPORTED;
mixer = compositor->audio_renderer->mixer;
gf_mixer_lock(mixer, GF_TRUE);
if (!compositor->audio_renderer->audio_listeners) compositor->audio_renderer->audio_listeners = gf_list_new();
gf_list_add(compositor->audio_renderer->audio_listeners, al);
gf_mixer_get_config(mixer, &sr, &ch, &bps, &ch_cfg);
al->on_audio_reconfig(al->udta, sr, bps, ch, ch_cfg);
gf_mixer_lock(mixer, GF_FALSE);
return GF_OK;
}
static GF_Err gf_ar_setup_output_format(GF_AudioRenderer *ar)
{
GF_Err e;
u32 freq, nb_bits, nb_chan, ch_cfg;
u32 in_ch, in_cfg, in_bps, in_freq;
gf_mixer_get_config(ar->mixer, &freq, &nb_chan, &nb_bits, &ch_cfg);
/*user disabled multichannel audio*/
if (ar->disable_multichannel && (nb_chan>2) ) nb_chan = 2;
in_ch = nb_chan;
in_cfg = ch_cfg;
in_bps = nb_bits;
in_freq = freq;
if (ar->filter_chain.filters) {
u32 osr, obps, och, ocfg;
e = gf_afc_setup(&ar->filter_chain, nb_bits, freq, nb_chan, ch_cfg, &och, &ocfg);
osr = freq;
obps = nb_bits;
nb_chan = och;
/*try to reconfigure audio output*/
if (!e)
e = ar->audio_out->ConfigureOutput(ar->audio_out, &osr, &och, &obps, ocfg);
/*output module cannot support filter output, disable it ...*/
if (e || (osr != freq) || (och != nb_chan) || (obps != nb_bits)) {
nb_bits = in_bps;
freq = in_freq;
nb_chan = in_ch;
ar->filter_chain.enable_filters = GF_FALSE;
e = ar->audio_out->ConfigureOutput(ar->audio_out, &freq, &nb_chan, &nb_bits, ch_cfg);
}
} else {
e = ar->audio_out->ConfigureOutput(ar->audio_out, &freq, &nb_chan, &nb_bits, ch_cfg);
}
if (e) {
GF_LOG(GF_LOG_ERROR, GF_LOG_MMIO, ("[AudioRender] reconfigure error %d\n", e));
if (nb_chan>2) {
nb_chan=2;
in_ch=2;
ch_cfg=0;
e = ar->audio_out->ConfigureOutput(ar->audio_out, &freq, &nb_chan, &nb_bits, ch_cfg);
}
if (e) return e;
}
gf_mixer_set_config(ar->mixer, freq, nb_chan, nb_bits, in_cfg);
ar->audio_delay = ar->audio_out->GetAudioDelay(ar->audio_out);
ar->audio_out->SetVolume(ar->audio_out, ar->volume);
ar->audio_out->SetPan(ar->audio_out, ar->pan);
ar->time_at_last_config = ar->current_time;
ar->bytes_requested = 0;
ar->bytes_per_second = freq * nb_chan * nb_bits / 8;
if (ar->audio_listeners) {
u32 k=0;
GF_AudioListener *l;
while ((l = (GF_AudioListener*)gf_list_enum(ar->audio_listeners, &k))) {
l->on_audio_reconfig(l->udta, in_freq, in_bps, in_ch, in_cfg);
}
}
return GF_OK;
}
