void compositor_init_audiobuffer(GF_Compositor *compositor, GF_Node *node)
{
AudioBufferStack *st;
GF_SAFEALLOC(st, AudioBufferStack);
/*use our private input*/
setup_audiobufer(&st->output, compositor, node);
st->add_source = audiobuffer_add_source;
st->time_handle.UpdateTimeNode = audiobuffer_update_time;
st->time_handle.udta = node;
st->set_duration = 1;
st->am = gf_mixer_new(NULL);
st->new_inputs = gf_list_new();
gf_node_set_private(node, st);
gf_node_set_callback_function(node, audiobuffer_traverse);
gf_sc_register_time_node(compositor, &st->time_handle);
}
GF_AudioRenderer *gf_sc_ar_load(GF_User *user)
{
const char *sOpt;
u32 i, count;
u32 num_buffers, total_duration;
GF_Err e;
GF_AudioRenderer *ar;
ar = (GF_AudioRenderer *) gf_malloc(sizeof(GF_AudioRenderer));
memset(ar, 0, sizeof(GF_AudioRenderer));
num_buffers = total_duration = 0;
sOpt = gf_cfg_get_key(user->config, "Audio", "ForceConfig");
if (sOpt && !stricmp(sOpt, "yes")) {
sOpt = gf_cfg_get_key(user->config, "Audio", "NumBuffers");
num_buffers = sOpt ? atoi(sOpt) : 6;
sOpt = gf_cfg_get_key(user->config, "Audio", "TotalDuration");
total_duration = sOpt ? atoi(sOpt) : 400;
}
sOpt = gf_cfg_get_key(user->config, "Audio", "NoResync");
ar->disable_resync = (sOpt && !stricmp(sOpt, "yes")) ? GF_TRUE : GF_FALSE;
sOpt = gf_cfg_get_key(user->config, "Audio", "DisableMultiChannel");
ar->disable_multichannel = (sOpt && !stricmp(sOpt, "yes")) ? GF_TRUE : GF_FALSE;
ar->mixer = gf_mixer_new(ar);
ar->user = user;
sOpt = gf_cfg_get_key(user->config, "Audio", "Volume");
ar->volume = sOpt ? atoi(sOpt) : 75;
sOpt = gf_cfg_get_key(user->config, "Audio", "Pan");
ar->pan = sOpt ? atoi(sOpt) : 50;
if (! (user->init_flags & GF_TERM_NO_AUDIO) ) {
/*get a prefered compositor*/
sOpt = gf_cfg_get_key(user->config, "Audio", "DriverName");
if (sOpt) {
ar->audio_out = (GF_AudioOutput *) gf_modules_load_interface_by_name(user->modules, sOpt, GF_AUDIO_OUTPUT_INTERFACE);
if (!ar->audio_out) {
ar->audio_out = NULL;
sOpt = NULL;
}
}
if (!ar->audio_out) {
GF_AudioOutput *raw_out = NULL;
count = gf_modules_get_count(ar->user->modules);
for (i=0; i<count; i++) {
ar->audio_out = (GF_AudioOutput *) gf_modules_load_interface(ar->user->modules, i, GF_AUDIO_OUTPUT_INTERFACE);
if (!ar->audio_out) continue;
//in enum mode, only use raw out if everything else failed ...
if (!stricmp(ar->audio_out->module_name, "Raw Audio Output")) {
raw_out = ar->audio_out;
ar->audio_out = NULL;
continue;
}
GF_LOG(GF_LOG_DEBUG, GF_LOG_AUDIO, ("[AudioRender] Audio output module %s loaded\n", ar->audio_out->module_name));
/*check that's a valid audio compositor*/
if ((ar->audio_out->SelfThreaded && ar->audio_out->SetPriority) || ar->audio_out->WriteAudio) {
/*remember the module we use*/
gf_cfg_set_key(user->config, "Audio", "DriverName", ar->audio_out->module_name);
break;
}
gf_modules_close_interface((GF_BaseInterface *)ar->audio_out);
ar->audio_out = NULL;
}
if (raw_out) {
if (ar->audio_out) gf_modules_close_interface((GF_BaseInterface *)raw_out);
else ar->audio_out = raw_out;
}
}
/*if not init we run with a NULL audio compositor*/
if (ar->audio_out) {
ar->audio_out->FillBuffer = gf_ar_fill_output;
ar->audio_out->audio_renderer = ar;
GF_LOG(GF_LOG_DEBUG, GF_LOG_AUDIO, ("[AudioRender] Setting up audio module %s\n", ar->audio_out->module_name));
e = ar->audio_out->Setup(ar->audio_out, ar->user->os_window_handler, num_buffers, total_duration);
/*load main audio filter*/
gf_afc_load(&ar->filter_chain, user, (char*)gf_cfg_get_key(user->config, "Audio", "Filter"));
if (e != GF_OK) {
GF_LOG(GF_LOG_ERROR, GF_LOG_MMIO, ("Could not setup audio out %s\n", ar->audio_out->module_name));
gf_modules_close_interface((GF_BaseInterface *)ar->audio_out);
ar->audio_out = NULL;
} else {
if (!ar->audio_out->SelfThreaded) {
ar->th = gf_th_new("AudioRenderer");
gf_th_run(ar->th, gf_ar_proc, ar);
} else {
gf_ar_setup_output_format(ar);
if (ar->audio_out->SetPriority) ar->audio_out->SetPriority(ar->audio_out, GF_THREAD_PRIORITY_REALTIME);
}
}
}
if (!ar->audio_out) {
gf_cfg_set_key(user->config, "Audio", "DriverName", "No Audio Output Available");
} else {
if (user->init_flags & GF_TERM_USE_AUDIO_HW_CLOCK)
ar->clock_use_audio_out = GF_TRUE;
}
}
/*init compositor timer*/
ar->start_time = gf_sys_clock_high_res();
ar->current_time = 0;
return ar;
}
