int aac_init(struct sp* env){
//initialize the aac specific structures
struct aac_data* data = malloc(sizeof(struct aac_data)); //allocate private structures
int buffer_size = FAAD_MIN_STREAMSIZE*8; //formerly used in the decode call
//might not be necessary, it's the minimum amount of data needed to get the decoder to do something
//hopefully faad acts like lame and internally buffers input until it can make a frame.
//if not we'll need to internally buffer, by holding a buffer_size sized chunk of memory in aac_data
//and then filling it
int cap = NeAACDecGetCapabilities(); //we should do some bulletproofing here, but we won't now
data->hAac = NeAACDecOpen();
//Configure the decoder
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(data->hAac);
conf->defObjectType = 2; //aac "MAIN"
conf->defSampleRate = 44100;
conf->outputFormat = 1;
conf->downMatrix = 1;
NeAACDecSetConfiguration(data->hAac, conf); //set the stuff
// Initialise the library using one of the initialization functions
unsigned long samplerate;
unsigned char channels;
int offset = NeAACDecInit(data->hAac, (unsigned char*)env->input, env->size, &samplerate, &channels);
if (offset != 0) { //now how do i tell sp from here that audio data starts at index
env->p.offset = offset; //communicate offset
return SP_ABORT; //do something to notify of error
}
//shutup -Wunused-variable... i'll use them eventually
(void)buffer_size;
(void)cap;
env->private_data = data;
return SP_OK;
}
static void* aacd_faad_init()
{
void *ret = NeAACDecOpen();
AACD_INFO( "init() FAAD2 capabilities: %d", NeAACDecGetCapabilities());
return ret;
}
