static Image getIconFromIcnsFile (const File& icnsFile, const int size)
{
FileInputStream stream (icnsFile);
if (! stream.openedOk())
return {};
const int numHeaderSectionBytes = 4;
char headerSection [numHeaderSectionBytes];
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes
|| headerSection[0] != 'i'
|| headerSection[1] != 'c'
|| headerSection[2] != 'n'
|| headerSection[3] != 's')
return {};
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes)
return {};
const auto dataSize = juce::ByteOrder::bigEndianInt (headerSection);
if (dataSize <= 0)
return {};
OwnedArray<juce::ImageFileFormat> internalFormats;
internalFormats.add (new PNGImageFormat());
internalFormats.add (new JPEGImageFormat());
Array<Image> images;
auto maxWidth = 0;
auto maxWidthIndex = -1;
while (stream.getPosition() < dataSize)
{
const auto sectionStart = stream.getPosition();
if (! stream.setPosition (sectionStart + 4))
break;
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes)
break;
const auto sectionSize = ByteOrder::bigEndianInt (headerSection);
if (sectionSize <= 0)
break;
const auto sectionDataStart = stream.getPosition();
for (auto* fmt : internalFormats)
{
if (fmt->canUnderstand (stream))
{
stream.setPosition (sectionDataStart);
images.add (fmt->decodeImage (stream));
const auto lastImageIndex = images.size() - 1;
const auto lastWidth = images.getReference (lastImageIndex).getWidth();
if (lastWidth > maxWidth)
{
maxWidthIndex = lastImageIndex;
maxWidth = lastWidth;
}
}
stream.setPosition (sectionDataStart);
}
stream.setPosition (sectionStart + sectionSize);
}
return maxWidthIndex == -1 ? juce::Image()
: images.getReference (maxWidthIndex).rescaled (size, size, Graphics::ResamplingQuality::highResamplingQuality);
}
//==============================================================================
void AudioFileConverter::run()
{
while ( getQueueSize() > 0 )
{
{ // lock jobQueue before retrieving a task
const ScopedLock lock (queueLock);
task = jobQueue[0];
}
/* try opening the file */
File inputDataFile( task->getFileName() );
String inputFileName( inputDataFile.getFullPathName() );
if ( !inputDataFile.existsAsFile() || (inputDataFile.getSize() == 0) )
{
dbgOut(L"** AudioFileConverter ** Invalid or corrupted temporary file:\t" + inputFileName);
removeFromQueue();
continue;
}
/* try creating the input stream */
FileInputStream* fileInputStream = inputDataFile.createInputStream();
if (fileInputStream == NULL)
{
dbgOut(L"** AudioFileConverter ** Unable to create input stream for file:\t" + inputFileName);
removeFromQueue();
continue;
}
dbgOut(L"");
dbgOut(L" *** AudioFileConverter ***");
dbgOut(L"** AudioFileConverter ** Converting file:\t" + inputFileName
+ L" (" + String( inputDataFile.getSize() ) + L" b)");
int processorOutputs = task->getChannelNumber();
const int bytesPerSample = processorOutputs * sizeof(float);
int bufferSize = task->getBufferSize();
double samplingRate = task->getSamplingRate();
int bitDepth = task->getBitDepth();
String audioFormatName = task->getFormat();
AudioSampleBuffer tempBuffer(1, bufferSize);
// declare classes needed to save the format
OwnedArray<AudioFormat> someAudioFormats;
OwnedArray<AudioFormatWriter> audioFormatWriters;
OwnedArray<File> audioFiles;
Array<FileOutputStream*> outStreams;
String audioFileName;
AudioFormatWriter* tmpWriter;
FileOutputStream* tmpStream;
File* tmpAudioFile;
String outputDir = inputDataFile.getParentDirectory().getFullPathName();
for (int i=0; i < processorOutputs ; i++)
{
// Delete temporary files
File tmpDataFile(outputDir + File::separatorString + L"channel" + String::formatted("%.2d", i ) + ".dat");
if ( tmpDataFile != File::nonexistent)
{
dbgOut( L"** AudioFileConverter ** \tDeleting temporary file:\t" + tmpDataFile.getFullPathName() );
tmpDataFile.deleteFile();
}
else
{
dbgOut( "** AudioFileConverter ** Unable to delete temporary file:\t\t" + tmpDataFile.getFullPathName() );
}
// Define the format (wav is default)
if (audioFormatName == "wav")
someAudioFormats.add( new WavAudioFormat() );
else if (audioFormatName == "aiff")
someAudioFormats.add( new AiffAudioFormat() );
else if (audioFormatName == "flac")
someAudioFormats.add( new FlacAudioFormat() );
// else if (audioFormatName == "ogg")
// someAudioFormats.add( new OggVorbisAudioFormat() );
else
someAudioFormats.add( new WavAudioFormat() );
audioFileName = outputDir + File::separatorString + "channel" + String::formatted("%.2d",i) + someAudioFormats[i]->getFileExtensions()[0];
tmpAudioFile = new File (audioFileName);
if (*tmpAudioFile == File::nonexistent)
{
dbgOut( L"** AudioFileConverter ** Unable to create file:\t" + audioFileName );
audioFormatWriters.clear(true);
someAudioFormats.clear(true);
audioFiles.clear(true);
outStreams.clear();
delete fileInputStream;
removeFromQueue();
continue;
}
audioFiles.add( tmpAudioFile );
// Delete existing files
if (audioFiles[i]->existsAsFile())
{
dbgOut( "** AudioFileConverter ** \tDeleting existing audio file:\t\t" + audioFileName );
if (!audioFiles[i]->deleteFile())
{
dbgOut( L"** AudioFileConverter ** Unable to delete existing file:\t" + audioFileName );
audioFormatWriters.clear(true);
someAudioFormats.clear(true);
audioFiles.clear(true);
outStreams.clear();
delete fileInputStream;
removeFromQueue();
continue;
}
}
dbgOut( "** AudioFileConverter ** \tSaving audio file:\t\t" + audioFileName );
/* Create output stream for this file */
tmpStream = audioFiles[i]->createOutputStream();
if (tmpStream == NULL)
{
dbgOut( L"** AudioFileConverter ** Unable to create output stream for file:\t" + audioFileName );
delete tmpAudioFile;
audioFormatWriters.clear(true);
someAudioFormats.clear(true);
audioFiles.clear(true);
outStreams.clear();
delete fileInputStream;
removeFromQueue();
continue;
}
outStreams.add( tmpStream );
/* Create Audio Format Writer */
tmpWriter = someAudioFormats[i]->createWriterFor( outStreams[i], // streamToWriteTo,
samplingRate, // sampleRateToUse,
1, // numberOfChannels,
someAudioFormats[i]->getPossibleBitDepths().getLast(), // bitsPerSample - Get the maximum possible bit depth for this format
NULL, // metadataValues,
0 );
if (tmpWriter == NULL)
{
dbgOut( L"** AudioFileConverter ** Unable to create audio format writer for:\t" + audioFileName );
delete tmpAudioFile;
audioFormatWriters.clear(true);
someAudioFormats.clear(true);
audioFiles.clear(true);
outStreams.clear();
delete fileInputStream;
removeFromQueue();
continue;
}
audioFormatWriters.add( tmpWriter );
}
// Write data to wav file
int dataBlockSize = processorOutputs * bufferSize * bitDepth/8 ;
MemoryBlock* buffer = new MemoryBlock( dataBlockSize, true);
int64 bytesSaved = inputDataFile.getSize();
while ( !fileInputStream->isExhausted() && (fileInputStream->getPosition() < bytesSaved) )
{
float* x = (float *) buffer->getData() ;
int bytesRead = fileInputStream->read( (void *)x, dataBlockSize );
int numSamples = (int)( bytesRead / bytesPerSample );
for (int ch=0; ch < processorOutputs; ch++)
{
// const int numBytes = (int) (bytesRead/processorOutputs);
tempBuffer.copyFrom( 0, // const int destChannel,
0, // const int destStartSample,
x+ch*numSamples, // const float * source,
numSamples // int numSamples
);
audioFormatWriters[ch]->write( (const int**)(tempBuffer.getArrayOfChannels()), //AudioFormatWriter * writer,
numSamples //const int numSamples
);
}
}
// clean up
delete buffer;
// this should delete 'owned' objects
audioFormatWriters.clear(true);
someAudioFormats.clear(true);
audioFiles.clear(true);
// clear the outStreams without deleting objects (already deleted)
outStreams.clear();
// Delete and close the stream
delete fileInputStream;
// Delete the data.dat file
dbgOut( L"** AudioFileConverter ** \tDeleting temporary file:\t" + inputFileName );
inputDataFile.deleteFile();
// Delete the task
removeFromQueue();
dbgOut( "** AudioFileConverter ** Files saved." );
}
dbgOut( "** AudioFileConverter ** Thread terminates." );
}