SoundDecoder * SoundHandler::GetSoundDecoder(const u8 * sound, int length)
{
const u8 * check = sound;
int counter = 0;
while(check[0] == 0 && counter < length)
{
check++;
counter++;
}
if(counter >= length)
return NULL;
u32 * magic = (u32 *) check;
if(magic[0] == 0x4f676753) // 'OggS'
{
return new OggDecoder(sound, length);
}
else if(magic[0] == 0x52494646) // 'RIFF'
{
return new WavDecoder(sound, length);
}
else if(CheckMP3Signature(check) == true)
{
return new Mp3Decoder(sound, length);
}
return new SoundDecoder(sound, length);
}
SoundDecoder * SoundHandler::GetSoundDecoder(const char * filepath)
{
u32 magic;
CFile f(filepath, CFile::ReadOnly);
if(f.size() == 0)
return NULL;
do
{
f.read((u8 *) &magic, 1);
}
while(((u8 *) &magic)[0] == 0 && f.tell() < f.size());
if(f.tell() == f.size())
return NULL;
f.seek(f.tell()-1, SEEK_SET);
f.read((u8 *) &magic, 4);
f.close();
if(magic == 0x4f676753) // 'OggS'
{
return new OggDecoder(filepath);
}
else if(magic == 0x52494646) // 'RIFF'
{
return new WavDecoder(filepath);
}
else if(CheckMP3Signature((u8 *) &magic) == true)
{
return new Mp3Decoder(filepath);
}
return new SoundDecoder(filepath);
}
SoundDecoder * SoundHandler::GetSoundDecoder(const char * filepath)
{
u32 magic;
CFile f(filepath, "rb");
if(f.size() == 0)
return NULL;
do
{
f.read((u8 *) &magic, 1);
}
while(((u8 *) &magic)[0] == 0 && f.tell() < f.size());
if(f.tell() == f.size())
return NULL;
f.seek(f.tell()-1, SEEK_SET);
f.read((u8 *) &magic, 4);
f.close();
if(magic == 'OggS')
{
return new OggDecoder(filepath);
}
else if(magic == 'RIFF')
{
return new WavDecoder(filepath);
}
else if(magic == 'BNS ')
{
return new BNSDecoder(filepath);
}
else if(magic == 'FORM')
{
return new AifDecoder(filepath);
}
else if(CheckMP3Signature((u8 *) &magic) == true)
{
return new Mp3Decoder(filepath);
}
return new SoundDecoder(filepath);
}