Result SoundSourceWV::tryOpen(const AudioSourceConfig& audioSrcCfg) {
DEBUG_ASSERT(!m_wpc);
char msg[80]; // hold possible error message
int openFlags = OPEN_WVC | OPEN_NORMALIZE;
if ((kChannelCountMono == audioSrcCfg.channelCountHint) ||
(kChannelCountStereo == audioSrcCfg.channelCountHint)) {
openFlags |= OPEN_2CH_MAX;
}
m_wpc = WavpackOpenFileInput(
getLocalFileNameBytes().constData(), msg, openFlags, 0);
if (!m_wpc) {
qDebug() << "SSWV::open: failed to open file : " << msg;
return ERR;
}
setChannelCount(WavpackGetReducedChannels(m_wpc));
setFrameRate(WavpackGetSampleRate(m_wpc));
setFrameCount(WavpackGetNumSamples(m_wpc));
if (WavpackGetMode(m_wpc) & MODE_FLOAT) {
m_sampleScaleFactor = CSAMPLE_PEAK;
} else {
const int bitsPerSample = WavpackGetBitsPerSample(m_wpc);
const uint32_t wavpackPeakSampleValue = uint32_t(1)
<< (bitsPerSample - 1);
m_sampleScaleFactor = CSAMPLE_PEAK / CSAMPLE(wavpackPeakSampleValue);
}
return OK;
}
soundfile_t *
soundfile_open_read(const char *path) {
dp(30, "path=%s \n", path);
soundfile_t *s = salloc(sizeof *s);
s->m = sft_read;
if (g_regex_match_simple ("\\.wv$", path, 0, 0)) {
char error[80] = {0};
int flags = 0;
int norm_offset = 0;
s->t = sft_wavpack;
s->p = WavpackOpenFileInput(path, error, flags, norm_offset);
if (!s->p)
die("can not open input file '%s'", path);
s->bits_per_sample = WavpackGetBitsPerSample(s->p);
s->channels = WavpackGetNumChannels(s->p);
s->samplerate = WavpackGetSampleRate(s->p);
s->frames = WavpackGetNumSamples(s->p);
} else {
SF_INFO infile_info = {0};
if (strcmp(path, "-"))
s->p = sf_open(path, SFM_READ, &infile_info);
else
s->p = sf_open_fd(0, SFM_READ, &infile_info, 0);
if (!s->p)
die("can not open input file '%s'", path);
s->t = sft_libsndfile;
s->channels = infile_info.channels;
s->samplerate = infile_info.samplerate;
s->frames = infile_info.frames;
}
return s;
}
SoundSource::OpenResult SoundSourceWV::tryOpen(
OpenMode /*mode*/,
const OpenParams& params) {
DEBUG_ASSERT(!m_wpc);
char msg[80]; // hold possible error message
int openFlags = OPEN_WVC | OPEN_NORMALIZE;
if ((params.channelCount() == 1) ||
(params.channelCount() == 2)) {
openFlags |= OPEN_2CH_MAX;
}
// We use WavpackOpenFileInputEx to support Unicode paths on windows
// http://www.wavpack.com/lib_use.txt
QString wavPackFileName = getLocalFileName();
m_pWVFile = new QFile(wavPackFileName);
m_pWVFile->open(QFile::ReadOnly);
QString correctionFileName(wavPackFileName + "c");
if (QFile::exists(correctionFileName)) {
// If there is a correction file, open it as well
m_pWVCFile = new QFile(correctionFileName);
m_pWVCFile->open(QFile::ReadOnly);
}
m_wpc = WavpackOpenFileInputEx(&s_streamReader, m_pWVFile, m_pWVCFile,
msg, openFlags, 0);
if (!m_wpc) {
kLogger.warning() << "failed to open file : " << msg;
return OpenResult::Failed;
}
setChannelCount(WavpackGetReducedChannels(m_wpc));
setSampleRate(WavpackGetSampleRate(m_wpc));
initFrameIndexRangeOnce(
mixxx::IndexRange::forward(
0,
WavpackGetNumSamples(m_wpc)));
if (WavpackGetMode(m_wpc) & MODE_FLOAT) {
m_sampleScaleFactor = CSAMPLE_PEAK;
} else {
const int bitsPerSample = WavpackGetBitsPerSample(m_wpc);
if ((bitsPerSample >= 8) && (bitsPerSample <= 32)) {
// Range of signed sample values: [-2 ^ (bitsPerSample - 1), 2 ^ (bitsPerSample - 1) - 1]
const uint32_t absSamplePeak = 1u << (bitsPerSample - 1);
DEBUG_ASSERT(absSamplePeak > 0);
// Scaled range of sample values: [-CSAMPLE_PEAK, CSAMPLE_PEAK)
m_sampleScaleFactor = CSAMPLE_PEAK / absSamplePeak;
} else {
kLogger.warning()
<< "Invalid bits per sample:"
<< bitsPerSample;
return OpenResult::Aborted;
}
}
m_curFrameIndex = frameIndexMin();
return OpenResult::Succeeded;
}
static int decode_data(char *target, int max_size)
{
int bps, channels;
uint32_t samples_unpacked = 0;
channels = get_channels();
bps = WavpackGetBytesPerSample(wpc);
if (max_size >= 1024) {
samples_unpacked = WavpackUnpackSamples(wpc, temp_buffer, 256 / channels);
total_unpacked_samples += samples_unpacked;
if (samples_unpacked)
format_samples(bps, (uchar *)target, temp_buffer, samples_unpacked * channels);
} else {
printf("vorbis: Target buffer too small: %d < 1024\n", max_size);
}
return samples_unpacked * (WavpackGetBitsPerSample(wpc) / 4);
}
static int wavpack_assign_values(struct mpxplay_filehand_buffered_func_s *fbfs,void *fbds,struct wavpack_decoder_data *wpdi,struct mpxplay_infile_info_s *miis)
{
struct mpxplay_audio_decoder_info_s *adi=miis->audio_decoder_infos;
unsigned int encmode;
unsigned long pcmdatalen;
adi->filechannels = adi->outchannels = WavpackGetReducedChannels(wpdi->wpc);//WavpackGetNumChannels(wpdi->wpc);
if((adi->outchannels<PCM_MIN_CHANNELS) || (adi->outchannels>PCM_MAX_CHANNELS))
return 0;
adi->bits = WavpackGetBitsPerSample(wpdi->wpc);
if((adi->bits<PCM_MIN_BITS) || (adi->bits>PCM_MAX_BITS))
return 0;
adi->freq = WavpackGetSampleRate(wpdi->wpc);
wpdi->bytes_per_sample = WavpackGetBytesPerSample(wpdi->wpc);
if(!adi->freq || !wpdi->bytes_per_sample)
return 0;
pcmdatalen=WavpackGetNumSamples(wpdi->wpc);
miis->timemsec=(float)pcmdatalen*1000.0/adi->freq;
encmode=WavpackGetMode(wpdi->wpc);
if(encmode&MODE_FLOAT){
adi->infobits|=ADI_FLAG_FLOATOUT;
adi->bits=1;
wpdi->bytes_per_sample=sizeof(MPXPLAY_PCMOUT_FLOAT_T);
}
miis->longname="WavPack ";
if(encmode&MODE_HYBRID){
adi->bitrate=(long)((float)miis->filesize*8.0/1000.0*(float)adi->freq/(float)pcmdatalen);
}else{
long compr_ratio;
adi->bitratetext=malloc(MPXPLAY_ADITEXTSIZE_BITRATE+8);
if(!adi->bitratetext)
return 0;
compr_ratio=(long)(1000.0*(float)miis->filesize/(float)pcmdatalen/(float)wpdi->bytes_per_sample/(float)adi->filechannels);
sprintf(adi->bitratetext,"%2d/%2.2d.%1.1d%%",adi->bits,compr_ratio/10,compr_ratio%10);
}
return 1;
}
bool AKSampler_Plugin::loadCompressedSampleFile(AKSampleFileDescriptor& sfd, float volBoostDb)
{
char errMsg[100];
WavpackContext* wpc = WavpackOpenFileInput(sfd.path, errMsg, OPEN_2CH_MAX, 0);
if (wpc == 0)
{
printf("Wavpack error loading %s: %s\n", sfd.path, errMsg);
return false;
}
AKSampleDataDescriptor sdd;
sdd.sampleDescriptor = sfd.sampleDescriptor;
sdd.sampleRate = (float)WavpackGetSampleRate(wpc);
sdd.channelCount = WavpackGetReducedChannels(wpc);
sdd.sampleCount = WavpackGetNumSamples(wpc);
sdd.isInterleaved = sdd.channelCount > 1;
sdd.data = new float[sdd.channelCount * sdd.sampleCount];
int mode = WavpackGetMode(wpc);
WavpackUnpackSamples(wpc, (int32_t*)sdd.data, sdd.sampleCount);
if ((mode & MODE_FLOAT) == 0)
{
// convert samples to floating-point
int bps = WavpackGetBitsPerSample(wpc);
float scale = 1.0f / (1 << (bps - 1));
float* pf = sdd.data;
int32_t* pi = (int32_t*)pf;
for (int i = 0; i < (sdd.sampleCount * sdd.channelCount); i++)
*pf++ = scale * *pi++;
}
if (volBoostDb != 0.0f)
{
float scale = exp(volBoostDb / 20.0f);
float* pf = sdd.data;
for (int i = 0; i < (sdd.sampleCount * sdd.channelCount); i++)
*pf++ *= scale;
}
loadSampleData(sdd);
delete[] sdd.data;
return true;
}
SoundSource::OpenResult SoundSourceWV::tryOpen(const AudioSourceConfig& audioSrcCfg) {
DEBUG_ASSERT(!m_wpc);
char msg[80]; // hold possible error message
int openFlags = OPEN_WVC | OPEN_NORMALIZE;
if ((kChannelCountMono == audioSrcCfg.getChannelCount()) ||
(kChannelCountStereo == audioSrcCfg.getChannelCount())) {
openFlags |= OPEN_2CH_MAX;
}
// We use WavpackOpenFileInputEx to support Unicode paths on windows
// http://www.wavpack.com/lib_use.txt
QString wavPackFileName = getLocalFileName();
m_pWVFile = new QFile(wavPackFileName);
m_pWVFile->open(QFile::ReadOnly);
QString correctionFileName(wavPackFileName + "c");
if (QFile::exists(correctionFileName)) {
// If there is a correction file, open it as well
m_pWVCFile = new QFile(correctionFileName);
m_pWVCFile->open(QFile::ReadOnly);
}
m_wpc = WavpackOpenFileInputEx(&s_streamReader, m_pWVFile, m_pWVCFile,
msg, openFlags, 0);
if (!m_wpc) {
qDebug() << "SSWV::open: failed to open file : " << msg;
return OpenResult::FAILED;
}
setChannelCount(WavpackGetReducedChannels(m_wpc));
setSamplingRate(WavpackGetSampleRate(m_wpc));
setFrameCount(WavpackGetNumSamples(m_wpc));
if (WavpackGetMode(m_wpc) & MODE_FLOAT) {
m_sampleScaleFactor = CSAMPLE_PEAK;
} else {
const int bitsPerSample = WavpackGetBitsPerSample(m_wpc);
const uint32_t wavpackPeakSampleValue = 1u
<< (bitsPerSample - 1);
m_sampleScaleFactor = CSAMPLE_PEAK / wavpackPeakSampleValue;
}
return OpenResult::SUCCEEDED;
}
EmErrorCode WvDecoder::Open(const std::string& url)
{
m_Ctx = WavpackOpenFileInput(url.c_str(), nullptr, 0, 0);
if (m_Ctx == nullptr)
return ErrorCode::DecoderFailedToOpen;
if (WavpackGetNumSamples(m_Ctx) == (uint32_t) -1)
return ErrorCode::DecoderFailedToInit;
m_Duration = (double)WavpackGetNumSamples(m_Ctx) / WavpackGetSampleRate(m_Ctx) * 1000;
m_Channels = WavpackGetNumChannels(m_Ctx);
m_SampleRate = WavpackGetSampleRate(m_Ctx);
m_BitsPerSample = WavpackGetBitsPerSample(m_Ctx);
m_BytesPerSample = WavpackGetBytesPerSample(m_Ctx);
// one sample may not be enough to build a full channel
m_UnitCount = WavpackGetNumSamples(m_Ctx)/m_Channels;
m_UnitIndex = 0;
m_Buf.resize(10 * m_Channels * sizeof(int32_t)); // 1~10 full-samples
return ErrorCode::Ok;
}
static gboolean wv_play (InputPlayback * playback, const gchar * filename,
VFSFile * file, gint start_time, gint stop_time, gboolean pause)
{
if (file == NULL)
return FALSE;
gint32 *input = NULL;
void *output = NULL;
gint sample_rate, num_channels, bits_per_sample;
guint num_samples;
WavpackContext *ctx = NULL;
VFSFile *wvc_input = NULL;
gboolean error = FALSE;
if (! wv_attach (filename, file, & wvc_input, & ctx, NULL, OPEN_TAGS |
OPEN_WVC))
{
g_warning("Error opening Wavpack file '%s'.", filename);
error = TRUE;
goto error_exit;
}
sample_rate = WavpackGetSampleRate(ctx);
num_channels = WavpackGetNumChannels(ctx);
bits_per_sample = WavpackGetBitsPerSample(ctx);
num_samples = WavpackGetNumSamples(ctx);
if (!playback->output->open_audio(SAMPLE_FMT(bits_per_sample), sample_rate, num_channels))
{
g_warning("Error opening audio output.");
error = TRUE;
goto error_exit;
}
if (pause)
playback->output->pause(TRUE);
input = g_malloc(BUFFER_SIZE * num_channels * sizeof(guint32));
output = g_malloc(BUFFER_SIZE * num_channels * SAMPLE_SIZE(bits_per_sample));
if (input == NULL || output == NULL)
goto error_exit;
playback->set_gain_from_playlist(playback);
g_mutex_lock(ctrl_mutex);
playback->set_params(playback, (gint) WavpackGetAverageBitrate(ctx, num_channels),
sample_rate, num_channels);
seek_value = (start_time > 0) ? start_time : -1;
stop_flag = FALSE;
playback->set_pb_ready(playback);
g_mutex_unlock(ctrl_mutex);
while (!stop_flag && (stop_time < 0 ||
playback->output->written_time () < stop_time))
{
gint ret;
guint samples_left;
/* Handle seek and pause requests */
g_mutex_lock(ctrl_mutex);
if (seek_value >= 0)
{
playback->output->flush (seek_value);
WavpackSeekSample (ctx, (gint64) seek_value * sample_rate / 1000);
seek_value = -1;
g_cond_signal(ctrl_cond);
}
g_mutex_unlock(ctrl_mutex);
/* Decode audio data */
samples_left = num_samples - WavpackGetSampleIndex(ctx);
ret = WavpackUnpackSamples(ctx, input, BUFFER_SIZE);
if (samples_left == 0)
stop_flag = TRUE;
else if (ret < 0)
{
g_warning("Error decoding file.\n");
break;
}
else
{
/* Perform audio data conversion and output */
guint i;
gint32 *rp = input;
gint8 *wp = output;
gint16 *wp2 = output;
gint32 *wp4 = output;
if (bits_per_sample == 8)
{
for (i = 0; i < ret * num_channels; i++, wp++, rp++)
*wp = *rp & 0xff;
}
else if (bits_per_sample == 16)
{
for (i = 0; i < ret * num_channels; i++, wp2++, rp++)
*wp2 = *rp & 0xffff;
}
else if (bits_per_sample == 24 || bits_per_sample == 32)
{
for (i = 0; i < ret * num_channels; i++, wp4++, rp++)
*wp4 = *rp;
}
playback->output->write_audio(output, ret * num_channels * SAMPLE_SIZE(bits_per_sample));
}
}
/* Flush buffer */
g_mutex_lock(ctrl_mutex);
while (!stop_flag && playback->output->buffer_playing())
g_usleep(20000);
g_cond_signal(ctrl_cond);
g_mutex_unlock(ctrl_mutex);
error_exit:
g_free(input);
g_free(output);
wv_deattach (wvc_input, ctx);
stop_flag = TRUE;
playback->output->close_audio();
return ! error;
}
bool WavPackDecoder::Open(CFErrorRef *error)
{
if(IsOpen()) {
log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioDecoder.WavPack");
LOG4CXX_WARN(logger, "Open() called on an AudioDecoder that is already open");
return true;
}
// Ensure the input source is open
if(!mInputSource->IsOpen() && !mInputSource->Open(error))
return false;
mStreamReader.read_bytes = read_bytes_callback;
mStreamReader.get_pos = get_pos_callback;
mStreamReader.set_pos_abs = set_pos_abs_callback;
mStreamReader.set_pos_rel = set_pos_rel_callback;
mStreamReader.push_back_byte = push_back_byte_callback;
mStreamReader.get_length = get_length_callback;
mStreamReader.can_seek = can_seek_callback;
char errorBuf [80];
// Setup converter
mWPC = WavpackOpenFileInputEx(&mStreamReader, this, NULL, errorBuf, OPEN_WVC | OPEN_NORMALIZE, 0);
if(NULL == mWPC) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
32,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” is not a valid WavPack file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not a WavPack file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderInputOutputError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
return false;
}
// Floating-point and lossy files will be handed off in the canonical Core Audio format
int mode = WavpackGetMode(mWPC);
if(MODE_FLOAT & mode || !(MODE_LOSSLESS & mode)) {
// Canonical Core Audio format
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mFormat.mBitsPerChannel = 8 * sizeof(float);
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
else {
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsAlignedHigh | kAudioFormatFlagIsNonInterleaved;
mFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mFormat.mBitsPerChannel = WavpackGetBitsPerSample(mWPC);
mFormat.mBytesPerPacket = sizeof(int32_t);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
mTotalFrames = WavpackGetNumSamples(mWPC);
// Set up the source format
mSourceFormat.mFormatID = 'WVPK';
mSourceFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mSourceFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mSourceFormat.mBitsPerChannel = WavpackGetBitsPerSample(mWPC);
// Setup the channel layout
switch(mFormat.mChannelsPerFrame) {
case 1: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Mono); break;
case 2: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Stereo); break;
case 4: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Quadraphonic); break;
}
mBuffer = static_cast<int32_t *>(calloc(BUFFER_SIZE_FRAMES * mFormat.mChannelsPerFrame, sizeof(int32_t)));
if(NULL == mBuffer) {
if(error)
*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, NULL);
return false;
}
mIsOpen = true;
return true;
}
static bool_t wv_play (InputPlayback * playback, const char * filename,
VFSFile * file, int start_time, int stop_time, bool_t pause)
{
if (file == NULL)
return FALSE;
int32_t *input = NULL;
void *output = NULL;
int sample_rate, num_channels, bits_per_sample;
unsigned num_samples;
WavpackContext *ctx = NULL;
VFSFile *wvc_input = NULL;
bool_t error = FALSE;
if (! wv_attach (filename, file, & wvc_input, & ctx, NULL, OPEN_TAGS |
OPEN_WVC))
{
fprintf (stderr, "Error opening Wavpack file '%s'.", filename);
error = TRUE;
goto error_exit;
}
sample_rate = WavpackGetSampleRate(ctx);
num_channels = WavpackGetNumChannels(ctx);
bits_per_sample = WavpackGetBitsPerSample(ctx);
num_samples = WavpackGetNumSamples(ctx);
if (!playback->output->open_audio(SAMPLE_FMT(bits_per_sample), sample_rate, num_channels))
{
fprintf (stderr, "Error opening audio output.");
error = TRUE;
goto error_exit;
}
if (pause)
playback->output->pause(TRUE);
input = malloc(BUFFER_SIZE * num_channels * sizeof(uint32_t));
output = malloc(BUFFER_SIZE * num_channels * SAMPLE_SIZE(bits_per_sample));
if (input == NULL || output == NULL)
goto error_exit;
playback->set_gain_from_playlist(playback);
pthread_mutex_lock (& mutex);
playback->set_params(playback, (int) WavpackGetAverageBitrate(ctx, num_channels),
sample_rate, num_channels);
seek_value = (start_time > 0) ? start_time : -1;
stop_flag = FALSE;
playback->set_pb_ready(playback);
pthread_mutex_unlock (& mutex);
while (!stop_flag && (stop_time < 0 ||
playback->output->written_time () < stop_time))
{
int ret;
unsigned samples_left;
/* Handle seek and pause requests */
pthread_mutex_lock (& mutex);
if (seek_value >= 0)
{
playback->output->flush (seek_value);
WavpackSeekSample (ctx, (int64_t) seek_value * sample_rate / 1000);
seek_value = -1;
}
pthread_mutex_unlock (& mutex);
/* Decode audio data */
samples_left = num_samples - WavpackGetSampleIndex(ctx);
ret = WavpackUnpackSamples(ctx, input, BUFFER_SIZE);
if (samples_left == 0)
stop_flag = TRUE;
else if (ret < 0)
{
fprintf (stderr, "Error decoding file.\n");
break;
}
else
{
/* Perform audio data conversion and output */
unsigned i;
int32_t *rp = input;
int8_t *wp = output;
int16_t *wp2 = output;
int32_t *wp4 = output;
if (bits_per_sample == 8)
{
for (i = 0; i < ret * num_channels; i++, wp++, rp++)
*wp = *rp & 0xff;
}
else if (bits_per_sample == 16)
{
for (i = 0; i < ret * num_channels; i++, wp2++, rp++)
*wp2 = *rp & 0xffff;
}
else if (bits_per_sample == 24 || bits_per_sample == 32)
{
for (i = 0; i < ret * num_channels; i++, wp4++, rp++)
*wp4 = *rp;
}
playback->output->write_audio(output, ret * num_channels * SAMPLE_SIZE(bits_per_sample));
}
}
error_exit:
free(input);
free(output);
wv_deattach (wvc_input, ctx);
stop_flag = TRUE;
return ! error;
}
int CSound::DecodeWV(int SampleID, const void *pData, unsigned DataSize)
{
if(SampleID == -1 || SampleID >= NUM_SAMPLES)
return -1;
CSample *pSample = &m_aSamples[SampleID];
char aError[100];
WavpackContext *pContext;
ms_pWVBuffer = pData;
ms_WVBufferSize = DataSize;
ms_WVBufferPosition = 0;
pContext = WavpackOpenFileInput(ReadData, aError);
if (pContext)
{
int NumSamples = WavpackGetNumSamples(pContext);
int BitsPerSample = WavpackGetBitsPerSample(pContext);
unsigned int SampleRate = WavpackGetSampleRate(pContext);
int NumChannels = WavpackGetNumChannels(pContext);
int *pSrc;
short *pDst;
int i;
pSample->m_Channels = NumChannels;
pSample->m_Rate = SampleRate;
if(pSample->m_Channels > 2)
{
dbg_msg("sound/wv", "file is not mono or stereo.");
return -1;
}
if(BitsPerSample != 16)
{
dbg_msg("sound/wv", "bps is %d, not 16", BitsPerSample);
return -1;
}
int *pBuffer = (int *)mem_alloc(4*NumSamples*NumChannels, 1);
WavpackUnpackSamples(pContext, pBuffer, NumSamples); // TODO: check return value
pSrc = pBuffer;
pSample->m_pData = (short *)mem_alloc(2*NumSamples*NumChannels, 1);
pDst = pSample->m_pData;
for (i = 0; i < NumSamples*NumChannels; i++)
*pDst++ = (short)*pSrc++;
mem_free(pBuffer);
pSample->m_NumFrames = NumSamples;
pSample->m_LoopStart = -1;
pSample->m_LoopEnd = -1;
pSample->m_PausedAt = 0;
}
else
{
dbg_msg("sound/wv", "failed to decode sample (%s)", aError);
return -1;
}
return SampleID;
}
static GstFlowReturn
gst_wavpack_dec_chain (GstPad * pad, GstBuffer * buf)
{
GstWavpackDec *dec;
GstBuffer *outbuf;
GstFlowReturn ret = GST_FLOW_OK;
WavpackHeader wph;
int32_t decoded, unpacked_size;
gboolean format_changed;
dec = GST_WAVPACK_DEC (GST_PAD_PARENT (pad));
/* check input, we only accept framed input with complete chunks */
if (GST_BUFFER_SIZE (buf) < sizeof (WavpackHeader))
goto input_not_framed;
if (!gst_wavpack_read_header (&wph, GST_BUFFER_DATA (buf)))
goto invalid_header;
if (GST_BUFFER_SIZE (buf) < wph.ckSize + 4 * 1 + 4)
goto input_not_framed;
if (!(wph.flags & INITIAL_BLOCK))
goto input_not_framed;
dec->wv_id.buffer = GST_BUFFER_DATA (buf);
dec->wv_id.length = GST_BUFFER_SIZE (buf);
dec->wv_id.position = 0;
/* create a new wavpack context if there is none yet but if there
* was already one (i.e. caps were set on the srcpad) check whether
* the new one has the same caps */
if (!dec->context) {
gchar error_msg[80];
dec->context = WavpackOpenFileInputEx (dec->stream_reader,
&dec->wv_id, NULL, error_msg, OPEN_STREAMING, 0);
if (!dec->context) {
GST_WARNING ("Couldn't decode buffer: %s", error_msg);
dec->error_count++;
if (dec->error_count <= WAVPACK_DEC_MAX_ERRORS) {
goto out; /* just return OK for now */
} else {
goto decode_error;
}
}
}
g_assert (dec->context != NULL);
dec->error_count = 0;
format_changed =
(dec->sample_rate != WavpackGetSampleRate (dec->context)) ||
(dec->channels != WavpackGetNumChannels (dec->context)) ||
(dec->depth != WavpackGetBitsPerSample (dec->context)) ||
#ifdef WAVPACK_OLD_API
(dec->channel_mask != dec->context->config.channel_mask);
#else
(dec->channel_mask != WavpackGetChannelMask (dec->context));
#endif
if (!GST_PAD_CAPS (dec->srcpad) || format_changed) {
GstCaps *caps;
gint channel_mask;
dec->sample_rate = WavpackGetSampleRate (dec->context);
dec->channels = WavpackGetNumChannels (dec->context);
dec->depth = WavpackGetBitsPerSample (dec->context);
caps = gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, dec->sample_rate,
"channels", G_TYPE_INT, dec->channels,
"depth", G_TYPE_INT, dec->depth,
"width", G_TYPE_INT, 32,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
#ifdef WAVPACK_OLD_API
channel_mask = dec->context->config.channel_mask;
#else
channel_mask = WavpackGetChannelMask (dec->context);
#endif
if (channel_mask == 0)
channel_mask = gst_wavpack_get_default_channel_mask (dec->channels);
dec->channel_mask = channel_mask;
/* Only set the channel layout for more than two channels
* otherwise things break unfortunately */
if (channel_mask != 0 && dec->channels > 2)
if (!gst_wavpack_set_channel_layout (caps, channel_mask))
GST_WARNING_OBJECT (dec, "Failed to set channel layout");
GST_DEBUG_OBJECT (dec, "setting caps %" GST_PTR_FORMAT, caps);
/* should always succeed */
gst_pad_set_caps (dec->srcpad, caps);
gst_caps_unref (caps);
/* send GST_TAG_AUDIO_CODEC and GST_TAG_BITRATE tags before something
* is decoded or after the format has changed */
gst_wavpack_dec_post_tags (dec);
}
/* alloc output buffer */
unpacked_size = 4 * wph.block_samples * dec->channels;
ret = gst_pad_alloc_buffer (dec->srcpad, GST_BUFFER_OFFSET (buf),
unpacked_size, GST_PAD_CAPS (dec->srcpad), &outbuf);
if (ret != GST_FLOW_OK)
goto out;
gst_buffer_copy_metadata (outbuf, buf, GST_BUFFER_COPY_TIMESTAMPS);
/* If we got a DISCONT buffer forward the flag. Nothing else
* has to be done as libwavpack doesn't store state between
* Wavpack blocks */
if (GST_BUFFER_IS_DISCONT (buf) || dec->next_block_index != wph.block_index)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
dec->next_block_index = wph.block_index + wph.block_samples;
/* decode */
decoded = WavpackUnpackSamples (dec->context,
(int32_t *) GST_BUFFER_DATA (outbuf), wph.block_samples);
if (decoded != wph.block_samples)
goto decode_error;
if ((outbuf = gst_audio_buffer_clip (outbuf, &dec->segment,
dec->sample_rate, 4 * dec->channels))) {
GST_LOG_OBJECT (dec, "pushing buffer with time %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
ret = gst_pad_push (dec->srcpad, outbuf);
}
out:
if (G_UNLIKELY (ret != GST_FLOW_OK)) {
GST_DEBUG_OBJECT (dec, "flow: %s", gst_flow_get_name (ret));
}
gst_buffer_unref (buf);
return ret;
/* ERRORS */
input_not_framed:
{
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL), ("Expected framed input"));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
invalid_header:
{
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL), ("Invalid wavpack header"));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
decode_error:
{
const gchar *reason = "unknown";
if (dec->context) {
#ifdef WAVPACK_OLD_API
reason = dec->context->error_message;
#else
reason = WavpackGetErrorMessage (dec->context);
#endif
} else {
reason = "couldn't create decoder context";
}
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL),
("Failed to decode wavpack stream: %s", reason));
gst_buffer_unref (outbuf);
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
int snd_load_wv(const char *filename)
{
SAMPLE *snd;
int sid = -1;
char error[100];
WavpackContext *context;
/* don't waste memory on sound when we are stress testing */
if(config.dbg_stress)
return -1;
/* no need to load sound when we are running with no sound */
if(!sound_enabled)
return 1;
file = engine_openfile(filename, IOFLAG_READ); /* TODO: use system.h stuff for this */
if(!file)
{
dbg_msg("sound/wv", "failed to open %s", filename);
return -1;
}
sid = snd_alloc_id();
if(sid < 0)
return -1;
snd = &samples[sid];
context = WavpackOpenFileInput(read_data, error);
if (context)
{
int samples = WavpackGetNumSamples(context);
int bitspersample = WavpackGetBitsPerSample(context);
unsigned int samplerate = WavpackGetSampleRate(context);
int channels = WavpackGetNumChannels(context);
int *data;
int *src;
short *dst;
int i;
snd->channels = channels;
snd->rate = samplerate;
if(snd->channels > 2)
{
dbg_msg("sound/wv", "file is not mono or stereo. filename='%s'", filename);
return -1;
}
/*
if(snd->rate != 44100)
{
dbg_msg("sound/wv", "file is %d Hz, not 44100 Hz. filename='%s'", snd->rate, filename);
return -1;
}*/
if(bitspersample != 16)
{
dbg_msg("sound/wv", "bps is %d, not 16, filname='%s'", bitspersample, filename);
return -1;
}
data = (int *)mem_alloc(4*samples*channels, 1);
WavpackUnpackSamples(context, data, samples); /* TODO: check return value */
src = data;
snd->data = (short *)mem_alloc(2*samples*channels, 1);
dst = snd->data;
for (i = 0; i < samples*channels; i++)
*dst++ = (short)*src++;
mem_free(data);
snd->num_frames = samples;
snd->loop_start = -1;
snd->loop_end = -1;
}
else
{
dbg_msg("sound/wv", "failed to open %s: %s", filename, error);
}
io_close(file);
file = NULL;
if(config.debug)
dbg_msg("sound/wv", "loaded %s", filename);
rate_convert(sid);
return sid;
}
/*
* This does the main decoding thing.
* Requires an already opened WavpackContext.
*/
static void
wavpack_decode(struct decoder *decoder, WavpackContext *wpc, bool can_seek,
struct replay_gain_info *replay_gain_info)
{
struct audio_format audio_format;
format_samples_t format_samples;
char chunk[CHUNK_SIZE];
int samples_requested, samples_got;
float total_time, current_time;
int bytes_per_sample, output_sample_size;
int position;
audio_format.sample_rate = WavpackGetSampleRate(wpc);
audio_format.channels = WavpackGetReducedChannels(wpc);
audio_format.bits = WavpackGetBitsPerSample(wpc);
/* round bitwidth to 8-bit units */
audio_format.bits = (audio_format.bits + 7) & (~7);
/* mpd handles max 24-bit samples */
if (audio_format.bits > 24) {
audio_format.bits = 24;
}
if (!audio_format_valid(&audio_format)) {
g_warning("Invalid audio format: %u:%u:%u\n",
audio_format.sample_rate,
audio_format.bits,
audio_format.channels);
return;
}
if ((WavpackGetMode(wpc) & MODE_FLOAT) == MODE_FLOAT) {
format_samples = format_samples_float;
} else {
format_samples = format_samples_int;
}
total_time = WavpackGetNumSamples(wpc);
total_time /= audio_format.sample_rate;
bytes_per_sample = WavpackGetBytesPerSample(wpc);
output_sample_size = audio_format_frame_size(&audio_format);
/* wavpack gives us all kind of samples in a 32-bit space */
samples_requested = sizeof(chunk) / (4 * audio_format.channels);
decoder_initialized(decoder, &audio_format, can_seek, total_time);
position = 0;
do {
if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
if (can_seek) {
int where;
where = decoder_seek_where(decoder);
where *= audio_format.sample_rate;
if (WavpackSeekSample(wpc, where)) {
position = where;
decoder_command_finished(decoder);
} else {
decoder_seek_error(decoder);
}
} else {
decoder_seek_error(decoder);
}
}
if (decoder_get_command(decoder) == DECODE_COMMAND_STOP) {
break;
}
samples_got = WavpackUnpackSamples(
wpc, (int32_t *)chunk, samples_requested
);
if (samples_got > 0) {
int bitrate = (int)(WavpackGetInstantBitrate(wpc) /
1000 + 0.5);
position += samples_got;
current_time = position;
current_time /= audio_format.sample_rate;
format_samples(
bytes_per_sample, chunk,
samples_got * audio_format.channels
);
decoder_data(
decoder, NULL, chunk,
samples_got * output_sample_size,
current_time, bitrate,
replay_gain_info
);
}
} while (samples_got > 0);
}
int CSound::LoadWV(const char *pFilename)
{
CSample *pSample;
int SampleID = -1;
char aError[100];
WavpackContext *pContext;
// don't waste memory on sound when we are stress testing
if(g_Config.m_DbgStress)
return -1;
// no need to load sound when we are running with no sound
if(!m_SoundEnabled)
return 1;
if(!m_pStorage)
return -1;
ms_File = m_pStorage->OpenFile(pFilename, IOFLAG_READ, IStorage::TYPE_ALL);
if(!ms_File)
{
dbg_msg("sound/wv", "failed to open file. filename='%s'", pFilename);
return -1;
}
SampleID = AllocID();
if(SampleID < 0)
return -1;
pSample = &m_aSamples[SampleID];
pContext = WavpackOpenFileInput(ReadData, aError);
if (pContext)
{
int m_aSamples = WavpackGetNumSamples(pContext);
int BitsPerSample = WavpackGetBitsPerSample(pContext);
unsigned int SampleRate = WavpackGetSampleRate(pContext);
int m_aChannels = WavpackGetNumChannels(pContext);
int *pData;
int *pSrc;
short *pDst;
int i;
pSample->m_Channels = m_aChannels;
pSample->m_Rate = SampleRate;
if(pSample->m_Channels > 2)
{
dbg_msg("sound/wv", "file is not mono or stereo. filename='%s'", pFilename);
return -1;
}
/*
if(snd->rate != 44100)
{
dbg_msg("sound/wv", "file is %d Hz, not 44100 Hz. filename='%s'", snd->rate, filename);
return -1;
}*/
if(BitsPerSample != 16)
{
dbg_msg("sound/wv", "bps is %d, not 16, filname='%s'", BitsPerSample, pFilename);
return -1;
}
pData = (int *)mem_alloc(4*m_aSamples*m_aChannels, 1);
WavpackUnpackSamples(pContext, pData, m_aSamples); // TODO: check return value
pSrc = pData;
pSample->m_pData = (short *)mem_alloc(2*m_aSamples*m_aChannels, 1);
pDst = pSample->m_pData;
for (i = 0; i < m_aSamples*m_aChannels; i++)
*pDst++ = (short)*pSrc++;
mem_free(pData);
pSample->m_NumFrames = m_aSamples;
pSample->m_LoopStart = -1;
pSample->m_LoopEnd = -1;
pSample->m_PausedAt = 0;
}
else
{
dbg_msg("sound/wv", "failed to open %s: %s", pFilename, aError);
}
io_close(ms_File);
ms_File = NULL;
if(g_Config.m_Debug)
dbg_msg("sound/wv", "loaded %s", pFilename);
RateConvert(SampleID);
return SampleID;
}
static gboolean
xmms_wavpack_init (xmms_xform_t *xform)
{
xmms_wavpack_data_t *data;
xmms_sample_format_t sample_format;
gint samplerate;
/* the maximum length of error really isn't defined... stupid */
gchar error[1024];
g_return_val_if_fail (xform, FALSE);
if (!xmms_apetag_read (xform)) {
XMMS_DBG ("Failed to read APEv2 tag");
}
data = g_new0 (xmms_wavpack_data_t, 1);
g_return_val_if_fail (data, FALSE);
xmms_xform_private_data_set (xform, data);
data->reader.read_bytes = wavpack_read_bytes;
data->reader.get_pos = wavpack_get_pos;
data->reader.set_pos_abs = wavpack_set_pos_abs;
data->reader.set_pos_rel = wavpack_set_pos_rel;
data->reader.push_back_byte = wavpack_push_back_byte;
data->reader.get_length = wavpack_get_length;
data->reader.can_seek = wavpack_can_seek;
data->ctx = WavpackOpenFileInputEx (&data->reader,
xform, xform,
error, OPEN_TAGS, 0);
if (!data->ctx) {
xmms_log_error ("Unable to open wavpack file: %s", error);
xmms_xform_private_data_set (xform, NULL);
xmms_wavpack_free_data (data);
return FALSE;
}
data->channels = WavpackGetNumChannels (data->ctx);
data->bits_per_sample = WavpackGetBitsPerSample (data->ctx);
data->num_samples = WavpackGetNumSamples (data->ctx);
samplerate = WavpackGetSampleRate (data->ctx);
xmms_xform_metadata_set_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION,
(int) (1000.0 * data->num_samples / samplerate));
xmms_xform_metadata_set_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_SAMPLERATE,
samplerate);
xmms_xform_metadata_set_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_BITRATE,
(int) WavpackGetAverageBitrate (data->ctx, FALSE));
switch (data->bits_per_sample) {
case 8:
sample_format = XMMS_SAMPLE_FORMAT_S8;
break;
case 12:
case 16:
sample_format = XMMS_SAMPLE_FORMAT_S16;
break;
case 24:
case 32:
sample_format = XMMS_SAMPLE_FORMAT_S32;
break;
default:
xmms_log_error ("Unsupported bits-per-sample in wavpack file: %d",
data->bits_per_sample);
xmms_xform_private_data_set (xform, NULL);
xmms_wavpack_free_data (data);
return FALSE;
}
xmms_xform_outdata_type_add (xform,
XMMS_STREAM_TYPE_MIMETYPE,
"audio/pcm",
XMMS_STREAM_TYPE_FMT_FORMAT,
sample_format,
XMMS_STREAM_TYPE_FMT_CHANNELS,
data->channels,
XMMS_STREAM_TYPE_FMT_SAMPLERATE,
samplerate,
XMMS_STREAM_TYPE_END);
return TRUE;
}
static gboolean
gst_wavpack_parse_create_src_pad (GstWavpackParse * wvparse, GstBuffer * buf,
WavpackHeader * header)
{
GstWavpackMetadata meta;
GstCaps *caps = NULL;
guchar *bufptr;
g_assert (wvparse->srcpad == NULL);
bufptr = GST_BUFFER_DATA (buf) + sizeof (WavpackHeader);
while (gst_wavpack_read_metadata (&meta, GST_BUFFER_DATA (buf), &bufptr)) {
switch (meta.id) {
case ID_WVC_BITSTREAM:{
caps = gst_caps_new_simple ("audio/x-wavpack-correction",
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
wvparse->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_GET_CLASS (wvparse), "wvcsrc"), "wvcsrc");
break;
}
case ID_WV_BITSTREAM:
case ID_WVX_BITSTREAM:{
WavpackStreamReader *stream_reader = gst_wavpack_stream_reader_new ();
WavpackContext *wpc;
gchar error_msg[80];
read_id rid;
gint channel_mask;
rid.buffer = GST_BUFFER_DATA (buf);
rid.length = GST_BUFFER_SIZE (buf);
rid.position = 0;
wpc =
WavpackOpenFileInputEx (stream_reader, &rid, NULL, error_msg, 0, 0);
if (!wpc)
return FALSE;
wvparse->samplerate = WavpackGetSampleRate (wpc);
wvparse->channels = WavpackGetNumChannels (wpc);
wvparse->total_samples =
(header->total_samples ==
0xffffffff) ? G_GINT64_CONSTANT (-1) : header->total_samples;
caps = gst_caps_new_simple ("audio/x-wavpack",
"width", G_TYPE_INT, WavpackGetBitsPerSample (wpc),
"channels", G_TYPE_INT, wvparse->channels,
"rate", G_TYPE_INT, wvparse->samplerate,
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
#ifdef WAVPACK_OLD_API
channel_mask = wpc->config.channel_mask;
#else
channel_mask = WavpackGetChannelMask (wpc);
#endif
if (channel_mask == 0)
channel_mask =
gst_wavpack_get_default_channel_mask (wvparse->channels);
if (channel_mask != 0) {
if (!gst_wavpack_set_channel_layout (caps, channel_mask)) {
GST_WARNING_OBJECT (wvparse, "Failed to set channel layout");
gst_caps_unref (caps);
caps = NULL;
WavpackCloseFile (wpc);
g_free (stream_reader);
break;
}
}
wvparse->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_GET_CLASS (wvparse), "src"), "src");
WavpackCloseFile (wpc);
g_free (stream_reader);
break;
}
default:{
GST_LOG_OBJECT (wvparse, "unhandled ID: 0x%02x", meta.id);
break;
}
}
if (caps != NULL)
break;
}
if (caps == NULL || wvparse->srcpad == NULL)
return FALSE;
GST_DEBUG_OBJECT (wvparse, "Added src pad with caps %" GST_PTR_FORMAT, caps);
gst_pad_set_query_function (wvparse->srcpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_src_query));
gst_pad_set_query_type_function (wvparse->srcpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_get_src_query_types));
gst_pad_set_event_function (wvparse->srcpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_src_event));
gst_pad_set_caps (wvparse->srcpad, caps);
gst_caps_unref (caps);
gst_pad_use_fixed_caps (wvparse->srcpad);
gst_object_ref (wvparse->srcpad);
gst_pad_set_active (wvparse->srcpad, TRUE);
gst_element_add_pad (GST_ELEMENT (wvparse), wvparse->srcpad);
gst_element_no_more_pads (GST_ELEMENT (wvparse));
return TRUE;
}
bool WavPackDecoder::Open(CFErrorRef *error)
{
if(IsOpen()) {
LOGGER_WARNING("org.sbooth.AudioEngine.AudioDecoder.WavPack", "Open() called on an AudioDecoder that is already open");
return true;
}
// Ensure the input source is open
if(!mInputSource->IsOpen() && !mInputSource->Open(error))
return false;
mStreamReader.read_bytes = read_bytes_callback;
mStreamReader.get_pos = get_pos_callback;
mStreamReader.set_pos_abs = set_pos_abs_callback;
mStreamReader.set_pos_rel = set_pos_rel_callback;
mStreamReader.push_back_byte = push_back_byte_callback;
mStreamReader.get_length = get_length_callback;
mStreamReader.can_seek = can_seek_callback;
char errorBuf [80];
// Setup converter
mWPC = WavpackOpenFileInputEx(&mStreamReader, this, nullptr, errorBuf, OPEN_WVC | OPEN_NORMALIZE, 0);
if(nullptr == mWPC) {
if(error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid WavPack file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not a WavPack file"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(AudioDecoderErrorDomain, AudioDecoderInputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
// Floating-point and lossy files will be handed off in the canonical Core Audio format
int mode = WavpackGetMode(mWPC);
if(MODE_FLOAT & mode || !(MODE_LOSSLESS & mode)) {
// Canonical Core Audio format
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mFormat.mBitsPerChannel = 8 * sizeof(float);
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
else {
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsNonInterleaved;
// Don't set kAudioFormatFlagIsAlignedHigh for 32-bit integer files
mFormat.mFormatFlags |= (32 == WavpackGetBitsPerSample(mWPC) ? kAudioFormatFlagIsPacked : kAudioFormatFlagIsAlignedHigh);
mFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mFormat.mBitsPerChannel = WavpackGetBitsPerSample(mWPC);
mFormat.mBytesPerPacket = sizeof(int32_t);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
mTotalFrames = WavpackGetNumSamples(mWPC);
// Set up the source format
mSourceFormat.mFormatID = 'WVPK';
mSourceFormat.mSampleRate = WavpackGetSampleRate(mWPC);
mSourceFormat.mChannelsPerFrame = WavpackGetNumChannels(mWPC);
mSourceFormat.mBitsPerChannel = WavpackGetBitsPerSample(mWPC);
// Setup the channel layout
switch(mFormat.mChannelsPerFrame) {
case 1: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Mono); break;
case 2: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Stereo); break;
case 4: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Quadraphonic); break;
}
mBuffer = static_cast<int32_t *>(calloc(BUFFER_SIZE_FRAMES * mFormat.mChannelsPerFrame, sizeof(int32_t)));
if(nullptr == mBuffer) {
if(error)
*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, nullptr);
return false;
}
mIsOpen = true;
return true;
}
