bool Sound::LoadOggVorbis(Deserializer& source)
{
unsigned dataSize = source.GetSize();
SharedArrayPtr<signed char> data(new signed char[dataSize]);
source.Read(data.Get(), dataSize);
// Check for validity of data
int error;
stb_vorbis* vorbis = stb_vorbis_open_memory((unsigned char*)data.Get(), dataSize, &error, 0);
if (!vorbis)
{
LOGERROR("Could not read Ogg Vorbis data from " + source.GetName());
return false;
}
// Store length, frequency and stereo flag
stb_vorbis_info info = stb_vorbis_get_info(vorbis);
compressedLength_ = stb_vorbis_stream_length_in_seconds(vorbis);
frequency_ = info.sample_rate;
stereo_ = info.channels > 1;
stb_vorbis_close(vorbis);
data_ = data;
dataSize_ = dataSize;
sixteenBit_ = true;
compressed_ = true;
SetMemoryUse(dataSize);
return true;
}
// Load OGG file into Wave structure
// NOTE: Using stb_vorbis library
static Wave LoadOGG(char *fileName)
{
Wave wave;
stb_vorbis *oggFile = stb_vorbis_open_filename(fileName, NULL, NULL);
if (oggFile == NULL)
{
TraceLog(WARNING, "[%s] OGG file could not be opened", fileName);
wave.data = NULL;
}
else
{
stb_vorbis_info info = stb_vorbis_get_info(oggFile);
wave.sampleRate = info.sample_rate;
wave.bitsPerSample = 16;
wave.channels = info.channels;
TraceLog(DEBUG, "[%s] Ogg sample rate: %i", fileName, info.sample_rate);
TraceLog(DEBUG, "[%s] Ogg channels: %i", fileName, info.channels);
int totalSamplesLength = (stb_vorbis_stream_length_in_samples(oggFile) * info.channels);
wave.dataSize = totalSamplesLength*sizeof(short); // Size must be in bytes
TraceLog(DEBUG, "[%s] Samples length: %i", fileName, totalSamplesLength);
float totalSeconds = stb_vorbis_stream_length_in_seconds(oggFile);
TraceLog(DEBUG, "[%s] Total seconds: %f", fileName, totalSeconds);
if (totalSeconds > 10) TraceLog(WARNING, "[%s] Ogg audio lenght is larger than 10 seconds (%f), that's a big file in memory, consider music streaming", fileName, totalSeconds);
int totalSamples = totalSeconds*info.sample_rate*info.channels;
TraceLog(DEBUG, "[%s] Total samples calculated: %i", fileName, totalSamples);
wave.data = malloc(sizeof(short)*totalSamplesLength);
int samplesObtained = stb_vorbis_get_samples_short_interleaved(oggFile, info.channels, wave.data, totalSamplesLength);
TraceLog(DEBUG, "[%s] Samples obtained: %i", fileName, samplesObtained);
TraceLog(INFO, "[%s] OGG file loaded successfully (SampleRate: %i, BitRate: %i, Channels: %i)", fileName, wave.sampleRate, wave.bitsPerSample, wave.channels);
stb_vorbis_close(oggFile);
}
return wave;
}
// Get current music time length (in seconds)
float GetMusicTimeLength()
{
float totalSeconds = stb_vorbis_stream_length_in_seconds(currentMusic.stream);
return totalSeconds;
}
