OSStatus GetMovieAudioExtractionASBD(MovieAudioExtractionRef inSessionRef,
QTPropertyValuePtr *outASBDPtr)
{
QTPropertyValueType outPropType;
ByteCount outPropValueSize;
UInt32 outPropertyFlags;
OSStatus status = noErr;
*outASBDPtr = nil;
// first get the size of the property so we know how
// much memory to allocate for our property buffer
status = MovieAudioExtractionGetPropertyInfo( inSessionRef,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
&outPropType,
&outPropValueSize,
&outPropertyFlags);
assert(noErr == status);
// allocate a buffer for the property using the size value just obtained
*outASBDPtr = malloc(outPropValueSize);
assert(*outASBDPtr != nil);
// now get the actual property and put it into our buffer
ByteCount outPropValueSizeUsed;
status = MovieAudioExtractionGetProperty( inSessionRef,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
outPropValueSize,
*outASBDPtr,
&outPropValueSizeUsed);
return status;
}
// Get the default extraction layout for this movie, expanded into individual channel descriptions.
// The channel layout returned by this routine must be deallocated by the client.
// If 'asbd' is non-NULL, fill it with the default extraction asbd, which contains the
// highest sample rate among the sound tracks that will be contributing.
// 'outLayoutSize' and 'asbd' may be nil.
OSStatus GetDefaultExtractionLayout(Movie movie, UInt32* outLayoutSize,
AudioChannelLayout** outLayout, AudioStreamBasicDescription *asbd)
{
OSStatus err = noErr;
AudioChannelLayout *layout = NULL;
UInt32 size = 0;
MovieAudioExtractionRef extractionSessionRef = nil;
if (!outLayout)
{
err = paramErr;
goto bail;
}
// Initiate a dummy audio extraction here, in order to get the resulting default channel layout.
err = MovieAudioExtractionBegin(movie, 0, &extractionSessionRef);
require(err == noErr, bail);
// Get the size of the extraction output layout
err = MovieAudioExtractionGetPropertyInfo(extractionSessionRef, kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
NULL, &size, NULL);
require(err == noErr, bail);
// Allocate memory for the layout
layout = (AudioChannelLayout *) calloc(1, size);
if (layout == nil)
{
err = memFullErr;
goto bail;
}
// Get the layout for the current extraction configuration.
// This will have already been expanded into channel descriptions.
err = MovieAudioExtractionGetProperty(extractionSessionRef, kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
size, layout, nil);
require(err == noErr, bail);
// Return the layout and size, if requested
*outLayout = layout;
if (outLayoutSize)
*outLayoutSize = size;
// If the ASBD was requested, get that also.
if (asbd != nil)
{
// Get the layout for the current extraction configuration.
// This will have already been expanded into channel descriptions.
size = sizeof (*asbd);
err = MovieAudioExtractionGetProperty(extractionSessionRef,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
size, asbd, nil);
require(err == noErr, bail);
}
bail:
if (err != noErr)
{
if (layout)
free(layout);
if (outLayoutSize)
*outLayoutSize = 0;
}
// Throw away the temporary audio extraction session
if (extractionSessionRef)
{
MovieAudioExtractionEnd(extractionSessionRef);
}
return err;
}
ProgressResult QTImportFileHandle::Import(TrackFactory *trackFactory,
TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
OSErr err = noErr;
MovieAudioExtractionRef maer = NULL;
auto updateResult = ProgressResult::Success;
auto totSamples =
(sampleCount) GetMovieDuration(mMovie); // convert from TimeValue
decltype(totSamples) numSamples = 0;
Boolean discrete = true;
UInt32 quality = kQTAudioRenderQuality_Max;
AudioStreamBasicDescription desc;
UInt32 maxSampleSize;
bool res = false;
auto cleanup = finally( [&] {
if (maer) {
MovieAudioExtractionEnd(maer);
}
} );
CreateProgress();
do
{
err = MovieAudioExtractionBegin(mMovie, 0, &maer);
if (err != noErr) {
AudacityMessageBox(_("Unable to start QuickTime extraction"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_RenderQuality,
sizeof(quality),
&quality);
if (err != noErr) {
AudacityMessageBox(_("Unable to set QuickTime render quality"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Movie,
kQTMovieAudioExtractionMoviePropertyID_AllChannelsDiscrete,
sizeof(discrete),
&discrete);
if (err != noErr) {
AudacityMessageBox(_("Unable to set QuickTime discrete channels property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTAudioPropertyID_MaxAudioSampleSize,
sizeof(maxSampleSize),
&maxSampleSize,
NULL);
if (err != noErr) {
AudacityMessageBox(_("Unable to get QuickTime sample size property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(desc),
&desc,
NULL);
if (err != noErr) {
AudacityMessageBox(_("Unable to retrieve stream description"));
break;
}
auto numchan = desc.mChannelsPerFrame;
const size_t bufsize = 5 * desc.mSampleRate;
// determine sample format
sampleFormat format;
switch (maxSampleSize)
{
case 16:
format = int16Sample;
break;
case 24:
format = int24Sample;
break;
default:
format = floatSample;
break;
}
// Allocate an array of pointers, whose size is not known statically,
// and prefixed with the AudioBufferList structure.
MallocPtr< AudioBufferList > abl{
static_cast< AudioBufferList * >(
calloc( 1, offsetof( AudioBufferList, mBuffers ) +
(sizeof(AudioBuffer) * numchan))) };
abl->mNumberBuffers = numchan;
TrackHolders channels{ numchan };
const auto size = sizeof(float) * bufsize;
ArraysOf<unsigned char> holders{ numchan, size };
for (size_t c = 0; c < numchan; c++) {
auto &buffer = abl->mBuffers[c];
auto &holder = holders[c];
auto &channel = channels[c];
buffer.mNumberChannels = 1;
buffer.mDataByteSize = size;
buffer.mData = holder.get();
channel = trackFactory->NewWaveTrack( format );
channel->SetRate( desc.mSampleRate );
if (numchan == 2) {
if (c == 0) {
channel->SetChannel(Track::LeftChannel);
channel->SetLinked(true);
}
else if (c == 1) {
channel->SetChannel(Track::RightChannel);
}
}
}
do {
UInt32 flags = 0;
UInt32 numFrames = bufsize;
err = MovieAudioExtractionFillBuffer(maer,
&numFrames,
abl.get(),
&flags);
if (err != noErr) {
AudacityMessageBox(_("Unable to get fill buffer"));
break;
}
for (size_t c = 0; c < numchan; c++) {
channels[c]->Append((char *) abl->mBuffers[c].mData, floatSample, numFrames);
}
numSamples += numFrames;
updateResult = mProgress->Update(
numSamples.as_long_long(),
totSamples.as_long_long() );
if (numFrames == 0 || flags & kQTMovieAudioExtractionComplete) {
break;
}
} while (updateResult == ProgressResult::Success);
res = (updateResult == ProgressResult::Success && err == noErr);
if (res) {
for (const auto &channel: channels) {
channel->Flush();
}
outTracks.swap(channels);
}
//
// Extract any metadata
//
if (res) {
AddMetadata(tags);
}
} while (false);
// done:
return (res ? ProgressResult::Success : ProgressResult::Failed);
}
static OSErr QT_Create_Extract_Session(QTSplitter *filter)
{
AudioStreamBasicDescription aDesc;
OSErr err;
WAVEFORMATEX* pvi;
pvi = (WAVEFORMATEX*)filter->pAudio_Pin->pmt->pbFormat;
err = MovieAudioExtractionBegin(filter->pQTMovie, 0, &filter->aSession);
if (err != noErr)
{
ERR("Failed to begin Extraction session %i\n",err);
return err;
}
err = MovieAudioExtractionGetProperty(filter->aSession,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(AudioStreamBasicDescription), &aDesc, NULL);
if (err != noErr)
{
MovieAudioExtractionEnd(filter->aSession);
filter->aSession = NULL;
ERR("Failed to get session description %i\n",err);
return err;
}
aDesc.mFormatID = kAudioFormatLinearPCM;
aDesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger +
kAudioFormatFlagIsPacked;
aDesc.mFramesPerPacket = 1;
aDesc.mChannelsPerFrame = pvi->nChannels;
aDesc.mBitsPerChannel = pvi->wBitsPerSample;
aDesc.mSampleRate = pvi->nSamplesPerSec;
aDesc.mBytesPerFrame = (aDesc.mBitsPerChannel * aDesc.mChannelsPerFrame) / 8;
aDesc.mBytesPerPacket = aDesc.mBytesPerFrame * aDesc.mFramesPerPacket;
err = MovieAudioExtractionSetProperty(filter->aSession,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(AudioStreamBasicDescription), &aDesc);
if (aDesc.mFormatID != kAudioFormatLinearPCM)
{
ERR("Not PCM Wave\n");
err = -1;
}
if (aDesc.mFormatFlags != kLinearPCMFormatFlagIsSignedInteger +
kAudioFormatFlagIsPacked)
{
ERR("Unhandled Flags\n");
err = -1;
}
if (aDesc.mFramesPerPacket != 1)
{
ERR("Unhandled Frames per packet %li\n",aDesc.mFramesPerPacket);
err = -1;
}
if (aDesc.mChannelsPerFrame != pvi->nChannels)
{
ERR("Unhandled channel count %li\n",aDesc.mChannelsPerFrame);
err = -1;
}
if (aDesc.mBitsPerChannel != pvi->wBitsPerSample)
{
ERR("Unhandled bits per channel %li\n",aDesc.mBitsPerChannel);
err = -1;
}
if (aDesc.mSampleRate != pvi->nSamplesPerSec)
{
ERR("Unhandled sample rate %f\n",aDesc.mSampleRate);
err = -1;
}
if (err != noErr)
{
ERR("Failed to create Extraction Session\n");
MovieAudioExtractionEnd(filter->aSession);
filter->aSession = NULL;
}
return err;
}
QTAudioReader (InputStream* const input_, const int trackNum_)
: AudioFormatReader (input_, TRANS (quickTimeFormatName)),
ok (false),
movie (0),
trackNum (trackNum_),
lastSampleRead (0),
lastThreadId (0),
extractor (0),
dataHandle (0)
{
JUCE_AUTORELEASEPOOL
bufferList.calloc (256, 1);
#if JUCE_WINDOWS
if (InitializeQTML (0) != noErr)
return;
#endif
if (EnterMovies() != noErr)
return;
bool opened = juce_OpenQuickTimeMovieFromStream (input_, movie, dataHandle);
if (! opened)
return;
{
const int numTracks = GetMovieTrackCount (movie);
int trackCount = 0;
for (int i = 1; i <= numTracks; ++i)
{
track = GetMovieIndTrack (movie, i);
media = GetTrackMedia (track);
OSType mediaType;
GetMediaHandlerDescription (media, &mediaType, 0, 0);
if (mediaType == SoundMediaType
&& trackCount++ == trackNum_)
{
ok = true;
break;
}
}
}
if (! ok)
return;
ok = false;
lengthInSamples = GetMediaDecodeDuration (media);
usesFloatingPointData = false;
samplesPerFrame = (int) (GetMediaDecodeDuration (media) / GetMediaSampleCount (media));
trackUnitsPerFrame = GetMovieTimeScale (movie) * samplesPerFrame
/ GetMediaTimeScale (media);
OSStatus err = MovieAudioExtractionBegin (movie, 0, &extractor);
unsigned long output_layout_size;
err = MovieAudioExtractionGetPropertyInfo (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
0, &output_layout_size, 0);
if (err != noErr)
return;
HeapBlock <AudioChannelLayout> qt_audio_channel_layout;
qt_audio_channel_layout.calloc (output_layout_size, 1);
err = MovieAudioExtractionGetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
output_layout_size, qt_audio_channel_layout, 0);
qt_audio_channel_layout[0].mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
output_layout_size,
qt_audio_channel_layout);
err = MovieAudioExtractionGetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof (inputStreamDesc),
&inputStreamDesc, 0);
if (err != noErr)
return;
inputStreamDesc.mFormatFlags = kAudioFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked
| kAudioFormatFlagsNativeEndian;
inputStreamDesc.mBitsPerChannel = sizeof (SInt16) * 8;
inputStreamDesc.mChannelsPerFrame = jmin ((UInt32) 2, inputStreamDesc.mChannelsPerFrame);
inputStreamDesc.mBytesPerFrame = sizeof (SInt16) * inputStreamDesc.mChannelsPerFrame;
inputStreamDesc.mBytesPerPacket = inputStreamDesc.mBytesPerFrame;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof (inputStreamDesc),
&inputStreamDesc);
if (err != noErr)
return;
Boolean allChannelsDiscrete = false;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Movie,
kQTMovieAudioExtractionMoviePropertyID_AllChannelsDiscrete,
sizeof (allChannelsDiscrete),
&allChannelsDiscrete);
if (err != noErr)
return;
bufferList->mNumberBuffers = 1;
bufferList->mBuffers[0].mNumberChannels = inputStreamDesc.mChannelsPerFrame;
bufferList->mBuffers[0].mDataByteSize = jmax ((UInt32) 4096, (UInt32) (samplesPerFrame * inputStreamDesc.mBytesPerFrame) + 16);
dataBuffer.malloc (bufferList->mBuffers[0].mDataByteSize);
bufferList->mBuffers[0].mData = dataBuffer;
sampleRate = inputStreamDesc.mSampleRate;
bitsPerSample = 16;
numChannels = inputStreamDesc.mChannelsPerFrame;
detachThread();
ok = true;
}
int QTImportFileHandle::Import(TrackFactory *trackFactory,
Track ***outTracks,
int *outNumTracks,
Tags *tags)
{
OSErr err = noErr;
MovieAudioExtractionRef maer = NULL;
int updateResult = eProgressSuccess;
sampleCount totSamples = (sampleCount) GetMovieDuration(mMovie);
sampleCount numSamples = 0;
Boolean discrete = true;
UInt32 quality = kQTAudioRenderQuality_Max;
AudioStreamBasicDescription desc;
UInt32 maxSampleSize;
UInt32 numchan;
UInt32 bufsize;
bool res = false;
CreateProgress();
do
{
err = MovieAudioExtractionBegin(mMovie, 0, &maer);
if (err != noErr) {
wxMessageBox(_("Unable to start QuickTime extraction"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_RenderQuality,
sizeof(quality),
&quality);
if (err != noErr) {
wxMessageBox(_("Unable to set QuickTime render quality"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Movie,
kQTMovieAudioExtractionMoviePropertyID_AllChannelsDiscrete,
sizeof(discrete),
&discrete);
if (err != noErr) {
wxMessageBox(_("Unable to set QuickTime discrete channels property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTAudioPropertyID_MaxAudioSampleSize,
sizeof(maxSampleSize),
&maxSampleSize,
NULL);
if (err != noErr) {
wxMessageBox(_("Unable to get QuickTime sample size property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(desc),
&desc,
NULL);
if (err != noErr) {
wxMessageBox(_("Unable to retrieve stream description"));
break;
}
numchan = desc.mChannelsPerFrame;
bufsize = 5 * desc.mSampleRate;
// determine sample format
sampleFormat format;
switch (maxSampleSize)
{
case 16:
format = int16Sample;
break;
case 24:
format = int24Sample;
break;
default:
format = floatSample;
break;
}
AudioBufferList *abl = (AudioBufferList *)
calloc(1, offsetof(AudioBufferList, mBuffers) + (sizeof(AudioBuffer) * numchan));
abl->mNumberBuffers = numchan;
WaveTrack **channels = new WaveTrack *[numchan];
int c;
for (c = 0; c < numchan; c++) {
abl->mBuffers[c].mNumberChannels = 1;
abl->mBuffers[c].mDataByteSize = sizeof(float) * bufsize;
abl->mBuffers[c].mData = malloc(abl->mBuffers[c].mDataByteSize);
channels[c] = trackFactory->NewWaveTrack(format);
channels[c]->SetRate(desc.mSampleRate);
if (numchan == 2) {
if (c == 0) {
channels[c]->SetChannel(Track::LeftChannel);
channels[c]->SetLinked(true);
}
else if (c == 1) {
channels[c]->SetChannel(Track::RightChannel);
}
}
}
do {
UInt32 flags = 0;
UInt32 numFrames = bufsize;
err = MovieAudioExtractionFillBuffer(maer,
&numFrames,
abl,
&flags);
if (err != noErr) {
wxMessageBox(_("Unable to get fill buffer"));
break;
}
for (c = 0; c < numchan; c++) {
channels[c]->Append((char *) abl->mBuffers[c].mData, floatSample, numFrames);
}
numSamples += numFrames;
updateResult = mProgress->Update((wxULongLong_t)numSamples,
(wxULongLong_t)totSamples);
if (numFrames == 0 || flags & kQTMovieAudioExtractionComplete) {
break;
}
} while (updateResult == eProgressSuccess);
res = (updateResult == eProgressSuccess && err == noErr);
if (res) {
for (c = 0; c < numchan; c++) {
channels[c]->Flush();
}
*outTracks = (Track **) channels;
*outNumTracks = numchan;
}
else {
for (c = 0; c < numchan; c++) {
delete channels[c];
}
delete [] channels;
}
for (c = 0; c < numchan; c++) {
free(abl->mBuffers[c].mData);
}
free(abl);
//
// Extract any metadata
//
if (res) {
AddMetadata(tags);
}
} while (false);
done:
if (maer) {
MovieAudioExtractionEnd(maer);
}
return (res ? eProgressSuccess : eProgressFailed);
}
QuickTimeFileReader::QuickTimeFileReader(FileSource source,
DecodeMode decodeMode,
CacheMode mode,
size_t targetRate,
ProgressReporter *reporter) :
CodedAudioFileReader(mode, targetRate),
m_source(source),
m_path(source.getLocalFilename()),
m_d(new D),
m_reporter(reporter),
m_cancelled(false),
m_completion(0),
m_decodeThread(0)
{
m_channelCount = 0;
m_fileRate = 0;
Profiler profiler("QuickTimeFileReader::QuickTimeFileReader", true);
SVDEBUG << "QuickTimeFileReader: path is \"" << m_path << "\"" << endl;
long QTversion;
#ifdef WIN32
InitializeQTML(0); // FIXME should check QT version
#else
m_d->err = Gestalt(gestaltQuickTime,&QTversion);
if ((m_d->err != noErr) || (QTversion < 0x07000000)) {
m_error = QString("Failed to find compatible version of QuickTime (version 7 or above required)");
return;
}
#endif
EnterMovies();
Handle dataRef;
OSType dataRefType;
// CFStringRef URLString = CFStringCreateWithCString
// (0, m_path.toLocal8Bit().data(), 0);
QByteArray ba = m_path.toLocal8Bit();
CFURLRef url = CFURLCreateFromFileSystemRepresentation
(kCFAllocatorDefault,
(const UInt8 *)ba.data(),
(CFIndex)ba.length(),
false);
// m_d->err = QTNewDataReferenceFromURLCFString
m_d->err = QTNewDataReferenceFromCFURL
(url, 0, &dataRef, &dataRefType);
if (m_d->err) {
m_error = QString("Error creating data reference for QuickTime decoder: code %1").arg(m_d->err);
return;
}
short fileID = movieInDataForkResID;
short flags = 0;
m_d->err = NewMovieFromDataRef
(&m_d->movie, flags, &fileID, dataRef, dataRefType);
DisposeHandle(dataRef);
if (m_d->err) {
m_error = QString("Error creating new movie for QuickTime decoder: code %1").arg(m_d->err);
return;
}
Boolean isProtected = 0;
Track aTrack = GetMovieIndTrackType
(m_d->movie, 1, SoundMediaType,
movieTrackMediaType | movieTrackEnabledOnly);
if (aTrack) {
Media aMedia = GetTrackMedia(aTrack); // get the track media
if (aMedia) {
MediaHandler mh = GetMediaHandler(aMedia); // get the media handler we can query
if (mh) {
m_d->err = QTGetComponentProperty(mh,
kQTPropertyClass_DRM,
kQTDRMPropertyID_IsProtected,
sizeof(Boolean), &isProtected,nil);
} else {
m_d->err = 1;
}
} else {
m_d->err = 1;
}
} else {
m_d->err = 1;
}
if (m_d->err && m_d->err != kQTPropertyNotSupportedErr) {
m_error = QString("Error checking for DRM in QuickTime decoder: code %1").arg(m_d->err);
return;
} else if (!m_d->err && isProtected) {
m_error = QString("File is protected with DRM");
return;
} else if (m_d->err == kQTPropertyNotSupportedErr && !isProtected) {
std::cerr << "QuickTime: File is not protected with DRM" << std::endl;
}
if (m_d->movie) {
SetMovieActive(m_d->movie, TRUE);
m_d->err = GetMoviesError();
if (m_d->err) {
m_error = QString("Error in QuickTime decoder activation: code %1").arg(m_d->err);
return;
}
} else {
m_error = QString("Error in QuickTime decoder: Movie object not valid");
return;
}
m_d->err = MovieAudioExtractionBegin
(m_d->movie, 0, &m_d->extractionSessionRef);
if (m_d->err) {
m_error = QString("Error in QuickTime decoder extraction init: code %1").arg(m_d->err);
return;
}
m_d->err = MovieAudioExtractionGetProperty
(m_d->extractionSessionRef,
kQTPropertyClass_MovieAudioExtraction_Audio, kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(m_d->asbd),
&m_d->asbd,
nil);
if (m_d->err) {
m_error = QString("Error in QuickTime decoder property get: code %1").arg(m_d->err);
return;
}
m_channelCount = m_d->asbd.mChannelsPerFrame;
m_fileRate = m_d->asbd.mSampleRate;
std::cerr << "QuickTime: " << m_channelCount << " channels, " << m_fileRate << " kHz" << std::endl;
m_d->asbd.mFormatFlags =
kAudioFormatFlagIsFloat |
kAudioFormatFlagIsPacked |
kAudioFormatFlagsNativeEndian;
m_d->asbd.mBitsPerChannel = sizeof(float) * 8;
m_d->asbd.mBytesPerFrame = sizeof(float) * m_d->asbd.mChannelsPerFrame;
m_d->asbd.mBytesPerPacket = m_d->asbd.mBytesPerFrame;
m_d->err = MovieAudioExtractionSetProperty
(m_d->extractionSessionRef,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(m_d->asbd),
&m_d->asbd);
if (m_d->err) {
m_error = QString("Error in QuickTime decoder property set: code %1").arg(m_d->err);
m_channelCount = 0;
return;
}
m_d->buffer.mNumberBuffers = 1;
m_d->buffer.mBuffers[0].mNumberChannels = m_channelCount;
m_d->buffer.mBuffers[0].mDataByteSize =
sizeof(float) * m_channelCount * m_d->blockSize;
m_d->data = new float[m_channelCount * m_d->blockSize];
m_d->buffer.mBuffers[0].mData = m_d->data;
initialiseDecodeCache();
if (decodeMode == DecodeAtOnce) {
if (m_reporter) {
connect(m_reporter, SIGNAL(cancelled()), this, SLOT(cancelled()));
m_reporter->setMessage
(tr("Decoding %1...").arg(QFileInfo(m_path).fileName()));
}
while (1) {
UInt32 framesRead = m_d->blockSize;
UInt32 extractionFlags = 0;
m_d->err = MovieAudioExtractionFillBuffer
(m_d->extractionSessionRef, &framesRead, &m_d->buffer,
&extractionFlags);
if (m_d->err) {
m_error = QString("Error in QuickTime decoding: code %1")
.arg(m_d->err);
break;
}
//!!! progress?
// std::cerr << "Read " << framesRead << " frames (block size " << m_d->blockSize << ")" << std::endl;
// QuickTime buffers are interleaved unless specified otherwise
addSamplesToDecodeCache(m_d->data, framesRead);
if (framesRead < m_d->blockSize) break;
}
finishDecodeCache();
endSerialised();
m_d->err = MovieAudioExtractionEnd(m_d->extractionSessionRef);
if (m_d->err) {
m_error = QString("Error ending QuickTime extraction session: code %1").arg(m_d->err);
}
m_completion = 100;
} else {
if (m_reporter) m_reporter->setProgress(100);
if (m_channelCount > 0) {
m_decodeThread = new DecodeThread(this);
m_decodeThread->start();
}
}
std::cerr << "QuickTimeFileReader::QuickTimeFileReader: frame count is now " << getFrameCount() << ", error is \"\"" << m_error << "\"" << std::endl;
}
