ErrorType SoundStreamData::Open(
StreamReader *streamReader, Int chunkSize)
{
Unload();
if (!streamReader->IsOpen())
return Error::Throw(kErrorFileNotFound,
String("(%s(%p, %d): streamReader->mName=\"%s\"]",
FastFunctionName, streamReader, chunkSize,
streamReader->GetName().GetCString()));
mStreamReader = streamReader;
mProperties.SetSampleCount(chunkSize);
mStreamReader->SeekTo(0);
Char check = mStreamReader->ReadByte();
mStreamReader->SeekTo(0);
switch(check)
{
case '\x4f':
return OpenOgg();
case '\x52':
return OpenWav();
default:
Unload();
return Error::Throw(kErrorSoundFormatInvalid,
String("(%s(%p, %d): streamReader->mName=\"%s\"]",
FastFunctionName, streamReader, chunkSize,
streamReader->GetName().GetCString()));
}
}
int DecodeMusic(std::string const& filename, DecodedMusic* Sound){
// Opening file
FILE* stream = FileFinder::fopenUTF8(filename, "rb");
if (!stream) {
Output::Warning("Couldn't open music file %s", filename.c_str());
return -1;
}
// Trying to use internal decoder
audio_decoder = AudioDecoder::Create(stream, filename);
if (audio_decoder != NULL) return OpenAudioDecoder(stream, Sound, filename);
// Reading and parsing the magic
u32 magic;
fread(&magic, 4, 1, stream);
if (magic == 0x46464952) return OpenWav(stream, Sound);
else if (magic == 0x5367674F) return OpenOgg(stream, Sound);
else{
fclose(stream);
Output::Warning("Unsupported music format (%s)", filename.c_str());
return -1;
}
}
ErrorType SoundStreamData::Open(
const String &fileName, Int chunkSize)
{
Unload();
mStreamReader = new FileReader(fileName);
if (!mStreamReader->IsOpen()) {
delete (FileReader*)mStreamReader;
mStreamReader = 0;
return Error::Throw(kErrorFileNotFound, String("[%s(\"%s\", %d)]",
FastFunctionName, fileName.GetCString(), chunkSize));
}
mProperties.SetSampleCount(chunkSize);
mAllocatedStreamReader = true;
Char check = mStreamReader->ReadByte();
mStreamReader->SeekTo(0);
switch(check)
{
case '\x4f':
return OpenOgg();
case '\x52':
return OpenWav();
default:
Unload();
return Error::Throw(kErrorSoundFormatInvalid,
String("[%s(\"%s\", %d)]", FastFunctionName,
fileName.GetCString(), chunkSize));
}
}
/**
* @function ARB_Run
* @brief start / resume the arbitrary handler
* @param arb_st *arb: pointer to the arbitrary waveform handler
* @return none
*/
void ARB_Run(arb_st *arb) {
if(arb != NULL) {
arb->run = 1;
currentArb = arb;
/*DDS on*/
AD9834_Resume(0);
switch(arb->waveformType) {
/*<noise> special case: overwrite frequency with MAX_SAMPLE_PER_SECOND*/
case ARB_WAVE_NOISE:
TmrSetCallback(ARB_TIMER, ARB_IsrNoise);
TmrSetFrequency(ARB_TIMER, MAX_SAMPLE_PER_SECOND);
TmrLaunch(ARB_TIMER);
break;
/*<wav> special case: timer & ISR are directly handled by OpenWav()*/
case ARB_WAVE_WAV:
if(WavGetStatus() == WAV_STOPPED) {
OpenWav("waveform.wav");
}
WavPlay(arb->pOut);
break;
/*analog in: special ISR*/
case ARB_WAVE_ANA_IN:
TmrSetCallback(ARB_TIMER, ARB_IsrAnaIn);
TmrLaunch(ARB_TIMER);
break;
/*for all other waveforms: just start the timer with the default ISR*/
default:
TmrSetCallback(ARB_TIMER, ARB_IsrStd);
TmrLaunch(ARB_TIMER);
break;
}
}
}
