// _______________________________________________________________________________________
//
// call for existing file, NOT new one - from Open() or Wrap()
void CAAudioFile::GetExistingFileInfo()
{
LOG_FUNCTION("CAAudioFile::GetExistingFileInfo", "%p", this);
UInt32 propertySize;
OSStatus err;
// get mFileDataFormat
propertySize = sizeof(AudioStreamBasicDescription);
XThrowIfError(AudioFileGetProperty(mAudioFile, kAudioFilePropertyDataFormat, &propertySize, &mFileDataFormat), "get audio file's data format");
// get mFileChannelLayout
err = AudioFileGetPropertyInfo(mAudioFile, kAudioFilePropertyChannelLayout, &propertySize, NULL);
if (err == noErr && propertySize > 0) {
AudioChannelLayout *layout = static_cast<AudioChannelLayout *>(malloc(propertySize));
err = AudioFileGetProperty(mAudioFile, kAudioFilePropertyChannelLayout, &propertySize, layout);
if (err == noErr) {
mFileChannelLayout = layout;
#if VERBOSE_CHANNELMAP
printf("existing file's channel layout: %s\n", CAChannelLayouts::ConstantToString(mFileChannelLayout.Tag()));
#endif
}
free(layout);
XThrowIfError(err, "get audio file's channel layout");
}
if (mMode != kReading)
return;
#if 0
// get mNumberPackets
propertySize = sizeof(mNumberPackets);
XThrowIfError(AudioFileGetProperty(mAudioFile, kAudioFilePropertyAudioDataPacketCount, &propertySize, &mNumberPackets), "get audio file's packet count");
#if VERBOSE_IO
printf("CAAudioFile::GetExistingFileInfo: %qd packets\n", mNumberPackets);
#endif
#endif
// get mMagicCookie
err = AudioFileGetPropertyInfo(mAudioFile, kAudioFilePropertyMagicCookieData, &propertySize, NULL);
if (err == noErr && propertySize > 0) {
mMagicCookie = new Byte[propertySize];
mMagicCookieSize = propertySize;
XThrowIfError(AudioFileGetProperty(mAudioFile, kAudioFilePropertyMagicCookieData, &propertySize, mMagicCookie), "get audio file's magic cookie");
}
InitFileMaxPacketSize();
mPacketMark = 0;
mFrameMark = 0;
UpdateClientMaxPacketSize();
}
music_obj<audio_queue_driver>::music_obj(const boost::shared_ptr<ifdstream>& ifd, bool loop, float gain,
float start, float end)
: packet_index_(0)
, start_packet_index_(0)
, stop_packet_index_(0)
, volume_(gain)
, loop_(loop)
, is_paused_(false)
, ifd_(ifd)
{
LOG("Got ifdstream from path..");
OSStatus res = AudioFileOpenWithCallbacks(this, &music_obj::af_read_cb, &music_obj::af_write_cb,
&music_obj::af_get_size_cb, &music_obj::af_set_size_cb,
kAudioFileCAFType, &audio_file_);
if(res)
{
throw sys_exception("audio_queue_driver: couldn't open audio file in liverpool fs. AudioFile returned "
+ boost::lexical_cast<std::string>(res));
}
UInt32 size = sizeof(data_format_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyDataFormat, &size, &data_format_);
AudioQueueNewOutput(&data_format_, &music_obj<audio_queue_driver>::buffer_cb, this, NULL, NULL, 0, &queue_);
AudioQueueAddPropertyListener(queue_, kAudioQueueProperty_IsRunning, &music_obj<audio_queue_driver>::playback_cb, this);
if (data_format_.mBytesPerPacket == 0 || data_format_.mFramesPerPacket == 0)
{
size = sizeof(max_packet_size_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyPacketSizeUpperBound, &size, &max_packet_size_);
if (max_packet_size_ > BUFFER_SIZE_BYTES)
{
max_packet_size_ = BUFFER_SIZE_BYTES;
}
num_packets_to_read_ = BUFFER_SIZE_BYTES / max_packet_size_;
packet_descriptions_ = (AudioStreamPacketDescription*)malloc(sizeof(AudioStreamPacketDescription) * num_packets_to_read_);
}
else
{
num_packets_to_read_ = BUFFER_SIZE_BYTES / data_format_.mBytesPerPacket;
packet_descriptions_ = NULL;
}
AudioFileGetPropertyInfo(audio_file_, kAudioFilePropertyMagicCookieData, &size, NULL);
if (size > 0)
{
char* cookie = (char*)malloc(sizeof(char) * size);
AudioFileGetProperty(audio_file_, kAudioFilePropertyMagicCookieData, &size, cookie);
AudioQueueSetProperty(queue_, kAudioQueueProperty_MagicCookie, cookie, size);
free(cookie);
}
calculate_seek(start, end);
volume(volume_);
prime();
}
OSStatus SetupQueue(BG_FileInfo *inFileInfo)
{
UInt32 size = 0;
OSStatus result = AudioQueueNewOutput(&inFileInfo->mFileFormat, QueueCallback, this, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &mQueue);
AssertNoError("Error creating queue", end);
// (2) If the file has a cookie, we should get it and set it on the AQ
size = sizeof(UInt32);
result = AudioFileGetPropertyInfo (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size) {
char* cookie = new char [size];
result = AudioFileGetProperty (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, cookie);
AssertNoError("Error getting magic cookie", end);
result = AudioQueueSetProperty(mQueue, kAudioQueueProperty_MagicCookie, cookie, size);
delete [] cookie;
AssertNoError("Error setting magic cookie", end);
}
// channel layout
OSStatus err = AudioFileGetPropertyInfo(inFileInfo->mAFID, kAudioFilePropertyChannelLayout, &size, NULL);
if (err == noErr && size > 0) {
AudioChannelLayout *acl = (AudioChannelLayout *)malloc(size);
result = AudioFileGetProperty(inFileInfo->mAFID, kAudioFilePropertyChannelLayout, &size, acl);
AssertNoError("Error getting channel layout from file", end);
result = AudioQueueSetProperty(mQueue, kAudioQueueProperty_ChannelLayout, acl, size);
free(acl);
AssertNoError("Error setting channel layout on queue", end);
}
// add a notification proc for when the queue stops
result = AudioQueueAddPropertyListener(mQueue, kAudioQueueProperty_IsRunning, QueueStoppedProc, this);
AssertNoError("Error adding isRunning property listener to queue", end);
// we need to reset this variable so that if the queue is stopped mid buffer we don't dispose it
mMakeNewQueueWhenStopped = false;
// volume
result = SetVolume(mVolume);
//end:
return result;
}
music_obj<audio_queue_driver>::music_obj(const std::string& file_path, bool loop, float gain,
float start, float end)
: packet_index_(0)
, start_packet_index_(0)
, stop_packet_index_(0)
, volume_(gain)
, loop_(loop)
, is_paused_(false)
{
CFURLRef file_url = CFURLCreateFromFileSystemRepresentation(NULL, (const UInt8 *)file_path.c_str(), file_path.size(), false);
OSStatus res = AudioFileOpenURL(file_url, kAudioFileReadPermission, kAudioFileCAFType, &audio_file_);
CFRelease(file_url);
if(res)
{
throw sys_exception("audio_queue_driver: couldn't open audio file at '" + file_path + "'");
}
UInt32 size = sizeof(data_format_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyDataFormat, &size, &data_format_);
AudioQueueNewOutput(&data_format_, &music_obj<audio_queue_driver>::buffer_cb, this, NULL, NULL, 0, &queue_);
AudioQueueAddPropertyListener(queue_, kAudioQueueProperty_IsRunning, &music_obj<audio_queue_driver>::playback_cb, this);
if (data_format_.mBytesPerPacket == 0 || data_format_.mFramesPerPacket == 0)
{
size = sizeof(max_packet_size_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyPacketSizeUpperBound, &size, &max_packet_size_);
if (max_packet_size_ > BUFFER_SIZE_BYTES)
{
max_packet_size_ = BUFFER_SIZE_BYTES;
}
num_packets_to_read_ = BUFFER_SIZE_BYTES / max_packet_size_;
packet_descriptions_ = (AudioStreamPacketDescription*)malloc(sizeof(AudioStreamPacketDescription) * num_packets_to_read_);
}
else
{
num_packets_to_read_ = BUFFER_SIZE_BYTES / data_format_.mBytesPerPacket;
packet_descriptions_ = NULL;
}
AudioFileGetPropertyInfo(audio_file_, kAudioFilePropertyMagicCookieData, &size, NULL);
if (size > 0)
{
char* cookie = (char*)malloc(sizeof(char) * size);
AudioFileGetProperty(audio_file_, kAudioFilePropertyMagicCookieData, &size, cookie);
AudioQueueSetProperty(queue_, kAudioQueueProperty_MagicCookie, cookie, size);
free(cookie);
}
calculate_seek(start, end);
volume(volume_);
prime();
}
// many encoded formats require a 'magic cookie'. if the file has a cookie we get it
// and configure the queue with it
static void MyCopyEncoderCookieToQueue(AudioFileID theFile, AudioQueueRef queue ) {
UInt32 propertySize;
OSStatus result = AudioFileGetPropertyInfo (theFile, kAudioFilePropertyMagicCookieData, &propertySize, NULL);
if (result == noErr && propertySize > 0)
{
Byte* magicCookie = (UInt8*)malloc(sizeof(UInt8) * propertySize);
CheckError(AudioFileGetProperty (theFile, kAudioFilePropertyMagicCookieData, &propertySize, magicCookie), "get cookie from file failed");
CheckError(AudioQueueSetProperty(queue, kAudioQueueProperty_MagicCookie, magicCookie, propertySize), "set cookie on queue failed");
free(magicCookie);
}
}
void GetFormatFromInputFile (AudioFileID inputFile, CAStreamBasicDescription & inputFormat)
{
bool doPrint = true;
UInt32 size;
XThrowIfError(AudioFileGetPropertyInfo(inputFile,
kAudioFilePropertyFormatList, &size, NULL), "couldn't get file's format list info");
UInt32 numFormats = size / sizeof(AudioFormatListItem);
AudioFormatListItem *formatList = new AudioFormatListItem [ numFormats ];
XThrowIfError(AudioFileGetProperty(inputFile,
kAudioFilePropertyFormatList, &size, formatList), "couldn't get file's data format");
numFormats = size / sizeof(AudioFormatListItem); // we need to reassess the actual number of formats when we get it
if (numFormats == 1) {
// this is the common case
inputFormat = formatList[0].mASBD;
} else {
if (doPrint) {
printf ("File has a %d layered data format:\n", (int)numFormats);
for (unsigned int i = 0; i < numFormats; ++i)
CAStreamBasicDescription(formatList[i].mASBD).Print();
printf("\n");
}
// now we should look to see which decoders we have on the system
XThrowIfError(AudioFormatGetPropertyInfo(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size), "couldn't get decoder id's");
UInt32 numDecoders = size / sizeof(OSType);
OSType *decoderIDs = new OSType [ numDecoders ];
XThrowIfError(AudioFormatGetProperty(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size, decoderIDs), "couldn't get decoder id's");
unsigned int i = 0;
for (; i < numFormats; ++i) {
OSType decoderID = formatList[i].mASBD.mFormatID;
bool found = false;
for (unsigned int j = 0; j < numDecoders; ++j) {
if (decoderID == decoderIDs[j]) {
found = true;
break;
}
}
if (found) break;
}
delete [] decoderIDs;
if (i >= numFormats) {
fprintf (stderr, "Cannot play any of the formats in this file\n");
throw kAudioFileUnsupportedDataFormatError;
}
inputFormat = formatList[i].mASBD;
}
delete [] formatList;
}
// Sets the packet table containing information about the number of valid frames in a file and where they begin and end
// for the file types that support this information.
// Calling this function makes sure we write out the priming and remainder details to the destination file
static void WritePacketTableInfo(AudioConverterRef converter, AudioFileID destinationFileID)
{
UInt32 isWritable;
UInt32 dataSize;
OSStatus error = AudioFileGetPropertyInfo(destinationFileID, kAudioFilePropertyPacketTableInfo, &dataSize, &isWritable);
if (noErr == error && isWritable) {
AudioConverterPrimeInfo primeInfo;
dataSize = sizeof(primeInfo);
// retrieve the leadingFrames and trailingFrames information from the converter,
error = AudioConverterGetProperty(converter, kAudioConverterPrimeInfo, &dataSize, &primeInfo);
if (noErr == error) {
// we have some priming information to write out to the destination file
/* The total number of packets in the file times the frames per packet (or counting each packet's
frames individually for a variable frames per packet format) minus mPrimingFrames, minus
mRemainderFrames, should equal mNumberValidFrames.
*/
AudioFilePacketTableInfo pti;
dataSize = sizeof(pti);
error = AudioFileGetProperty(destinationFileID, kAudioFilePropertyPacketTableInfo, &dataSize, &pti);
if (noErr == error) {
// there's priming to write out to the file
UInt64 totalFrames = pti.mNumberValidFrames + pti.mPrimingFrames + pti.mRemainderFrames; // get the total number of frames from the output file
printf("Total number of frames from output file: %lld\n", totalFrames);
pti.mPrimingFrames = primeInfo.leadingFrames;
pti.mRemainderFrames = primeInfo.trailingFrames;
pti.mNumberValidFrames = totalFrames - pti.mPrimingFrames - pti.mRemainderFrames;
error = AudioFileSetProperty(destinationFileID, kAudioFilePropertyPacketTableInfo, sizeof(pti), &pti);
if (noErr == error) {
printf("Writing packet table information to destination file: %ld\n", sizeof(pti));
printf(" Total valid frames: %lld\n", pti.mNumberValidFrames);
printf(" Priming frames: %ld\n", pti.mPrimingFrames);
printf(" Remainder frames: %ld\n", pti.mRemainderFrames);
} else {
printf("Some audio files can't contain packet table information and that's OK\n");
}
} else {
printf("Getting kAudioFilePropertyPacketTableInfo error: %ld\n", error);
}
} else {
printf("No kAudioConverterPrimeInfo available and that's OK\n");
}
} else {
printf("GetPropertyInfo for kAudioFilePropertyPacketTableInfo error: %ld, isWritable: %ld\n", error, isWritable);
}
}
static OSStatus AttachNewCookie(AudioQueueRef inQueue, BackgroundTrackMgr::BG_FileInfo *inFileInfo)
{
OSStatus result = noErr;
UInt32 size = sizeof(UInt32);
result = AudioFileGetPropertyInfo (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size)
{
char* cookie = new char [size];
result = AudioFileGetProperty (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, cookie);
AssertNoError("Error getting cookie data", end);
result = AudioQueueSetProperty(inQueue, kAudioQueueProperty_MagicCookie, cookie, size);
delete [] cookie;
AssertNoError("Error setting cookie data for queue", end);
}
return noErr;
end:
return noErr;
}
// Some audio formats have a magic cookie associated with them which is required to decompress audio data
// When converting audio data you must check to see if the format of the data has a magic cookie
// If the audio data format has a magic cookie associated with it, you must add this information to anAudio Converter
// using AudioConverterSetProperty and kAudioConverterDecompressionMagicCookie to appropriately decompress the data
// http://developer.apple.com/mac/library/qa/qa2001/qa1318.html
static void ReadCookie(AudioFileID sourceFileID, AudioConverterRef converter)
{
// grab the cookie from the source file and set it on the converter
UInt32 cookieSize = 0;
OSStatus error = AudioFileGetPropertyInfo(sourceFileID, kAudioFilePropertyMagicCookieData, &cookieSize, NULL);
// if there is an error here, then the format doesn't have a cookie - this is perfectly fine as some formats do not
if (noErr == error && 0 != cookieSize) {
char* cookie = new char [cookieSize];
error = AudioFileGetProperty(sourceFileID, kAudioFilePropertyMagicCookieData, &cookieSize, cookie);
if (noErr == error) {
error = AudioConverterSetProperty(converter, kAudioConverterDecompressionMagicCookie, cookieSize, cookie);
if (error) printf("Could not Set kAudioConverterDecompressionMagicCookie on the Audio Converter!\n");
} else {
printf("Could not Get kAudioFilePropertyMagicCookieData from source file!\n");
}
delete [] cookie;
}
}
const OSStatus AudioFile::setClientFormat(const AudioStreamBasicDescription clientASBD)
{
checkError(AudioConverterNew(&mInputFormat, &clientASBD, &mAudioConverterRef), "AudioConverterNew");
mClientFormat = clientASBD;
UInt32 size = sizeof(UInt32);
UInt32 maxPacketSize;
checkError(AudioFileGetProperty(mAudioFileID, kAudioFilePropertyPacketSizeUpperBound, &size, &maxPacketSize), "AudioFileGetProperty");
if (mIsVBR) {
mPacketDescs = (AudioStreamPacketDescription*)calloc(mNumPacketsToRead, sizeof(AudioStreamPacketDescription));
}
// set magic cookie to the AudioConverter
{
UInt32 cookieSize;
OSStatus err = AudioFileGetPropertyInfo(mAudioFileID,
kAudioFilePropertyMagicCookieData,
&cookieSize,
NULL);
if (err == noErr && cookieSize > 0){
char *magicCookie = (char*)malloc(sizeof(UInt8) * cookieSize);
UInt32 magicCookieSize = cookieSize;
AudioFileGetProperty(mAudioFileID,
kAudioFilePropertyMagicCookieData,
&magicCookieSize,
magicCookie);
AudioConverterSetProperty(mAudioConverterRef,
kAudioConverterDecompressionMagicCookie,
magicCookieSize,
magicCookie);
free(magicCookie);
}
}
return noErr;
}
// Write output channel layout to destination file
static void WriteDestinationChannelLayout(AudioConverterRef converter, AudioFileID sourceFileID, AudioFileID destinationFileID)
{
UInt32 layoutSize = 0;
bool layoutFromConverter = true;
OSStatus error = AudioConverterGetPropertyInfo(converter, kAudioConverterOutputChannelLayout, &layoutSize, NULL);
// if the Audio Converter doesn't have a layout see if the input file does
if (error || 0 == layoutSize) {
error = AudioFileGetPropertyInfo(sourceFileID, kAudioFilePropertyChannelLayout, &layoutSize, NULL);
layoutFromConverter = false;
}
if (noErr == error && 0 != layoutSize) {
char* layout = new char[layoutSize];
if (layoutFromConverter) {
error = AudioConverterGetProperty(converter, kAudioConverterOutputChannelLayout, &layoutSize, layout);
if (error) printf("Could not Get kAudioConverterOutputChannelLayout from Audio Converter!\n");
} else {
error = AudioFileGetProperty(sourceFileID, kAudioFilePropertyChannelLayout, &layoutSize, layout);
if (error) printf("Could not Get kAudioFilePropertyChannelLayout from source file!\n");
}
if (noErr == error) {
error = AudioFileSetProperty(destinationFileID, kAudioFilePropertyChannelLayout, layoutSize, layout);
if (noErr == error) {
printf("Writing channel layout to destination file: %ld\n", layoutSize);
} else {
printf("Even though some formats have layouts, some files don't take them and that's OK\n");
}
}
delete [] layout;
}
}
//-----------------------------------------------------------------------------
bool AudioFile::Load()
{
#if MAC
AudioFileID mAudioFileID;
AudioStreamBasicDescription fileDescription, outputFormat;
SInt64 dataSize64;
UInt32 dataSize;
OSStatus err;
UInt32 size;
// ファイルを開く
FSRef ref;
Boolean isDirectory=false;
FSPathMakeRef((const UInt8*)GetFilePath(), &ref, &isDirectory);
err = AudioFileOpen(&ref, fsRdPerm, 0, &mAudioFileID);
if (err) {
//NSLog(@"AudioFileOpen failed");
return false;
}
// 開いたファイルの基本情報を fileDescription へ
size = sizeof(AudioStreamBasicDescription);
err = AudioFileGetProperty(mAudioFileID, kAudioFilePropertyDataFormat,
&size, &fileDescription);
if (err) {
//NSLog(@"AudioFileGetProperty failed");
AudioFileClose(mAudioFileID);
return false;
}
// 開いたファイルのデータ部のバイト数を dataSize へ
size = sizeof(SInt64);
err = AudioFileGetProperty(mAudioFileID, kAudioFilePropertyAudioDataByteCount,
&size, &dataSize64);
if (err) {
//NSLog(@"AudioFileGetProperty failed");
AudioFileClose(mAudioFileID);
return false;
}
dataSize = static_cast<UInt32>(dataSize64);
AudioFileTypeID fileTypeID;
size = sizeof( AudioFileTypeID );
err = AudioFileGetProperty(mAudioFileID, kAudioFilePropertyFileFormat, &size, &fileTypeID);
if (err) {
//NSLog(@"AudioFileGetProperty failed");
AudioFileClose(mAudioFileID);
return false;
}
// Instrument情報を初期化
mInstData.basekey = 60;
mInstData.lowkey = 0;
mInstData.highkey = 127;
mInstData.loop = 0;
//ループポイントの取得
Float64 st_point=0.0,end_point=0.0;
if ( fileTypeID == kAudioFileAIFFType || fileTypeID == kAudioFileAIFCType ) {
//INSTチャンクの取得
AudioFileGetUserDataSize(mAudioFileID, 'INST', 0, &size);
if ( size > 4 ) {
UInt8 *instChunk = new UInt8[size];
AudioFileGetUserData(mAudioFileID, 'INST', 0, &size, instChunk);
//MIDI情報の取得
mInstData.basekey = instChunk[0];
mInstData.lowkey = instChunk[2];
mInstData.highkey = instChunk[3];
if ( instChunk[9] > 0 ) { //ループフラグを確認
//マーカーの取得
UInt32 writable;
err = AudioFileGetPropertyInfo(mAudioFileID, kAudioFilePropertyMarkerList,
&size, &writable);
if (err) {
//NSLog(@"AudioFileGetPropertyInfo failed");
AudioFileClose(mAudioFileID);
return NULL;
}
UInt8 *markersBuffer = new UInt8[size];
AudioFileMarkerList *markers = reinterpret_cast<AudioFileMarkerList*>(markersBuffer);
err = AudioFileGetProperty(mAudioFileID, kAudioFilePropertyMarkerList,
&size, markers);
if (err) {
//NSLog(@"AudioFileGetProperty failed");
AudioFileClose(mAudioFileID);
return NULL;
}
//ループポイントの設定
for (unsigned int i=0; i<markers->mNumberMarkers; i++) {
if (markers->mMarkers[i].mMarkerID == instChunk[11] ) {
st_point = markers->mMarkers[i].mFramePosition;
}
else if (markers->mMarkers[i].mMarkerID == instChunk[13] ) {
end_point = markers->mMarkers[i].mFramePosition;
}
CFRelease(markers->mMarkers[i].mName);
}
if ( st_point < end_point ) {
mInstData.loop = 1;
}
delete [] markersBuffer;
}
delete [] instChunk;
}
}
else if ( fileTypeID == kAudioFileWAVEType ) {
//smplチャンクの取得
AudioFileGetUserDataSize( mAudioFileID, 'smpl', 0, &size );
if ( size >= sizeof(WAV_smpl) ) {
UInt8 *smplChunk = new UInt8[size];
AudioFileGetUserData( mAudioFileID, 'smpl', 0, &size, smplChunk );
WAV_smpl *smpl = (WAV_smpl *)smplChunk;
smpl->loops = EndianU32_LtoN( smpl->loops );
if ( smpl->loops > 0 ) {
mInstData.loop = true;
mInstData.basekey = EndianU32_LtoN( smpl->note );
st_point = EndianU32_LtoN( smpl->start );
end_point = EndianU32_LtoN( smpl->end ) + 1; //SoundForge等では最終ポイントを含める解釈
//end_point = EndianU32_LtoN( smpl->end ); //PeakではなぜかAIFFと同じ
}
else {
mInstData.basekey = EndianU32_LtoN( smpl->note );
}
delete [] smplChunk;
}
}
//容量の制限
SInt64 dataSamples = dataSize / fileDescription.mBytesPerFrame;
if ( dataSamples > MAXIMUM_SAMPLES ) {
dataSize = MAXIMUM_SAMPLES * fileDescription.mBytesPerFrame;
}
if ( st_point > MAXIMUM_SAMPLES ) {
st_point = MAXIMUM_SAMPLES;
}
if ( end_point > MAXIMUM_SAMPLES ) {
end_point = MAXIMUM_SAMPLES;
}
// 波形一時読み込み用メモリを確保
char *fileBuffer;
unsigned int fileBufferSize;
if (mInstData.loop) {
fileBufferSize = dataSize+EXPAND_BUFFER*fileDescription.mBytesPerFrame;
}
else {
fileBufferSize = dataSize;
}
fileBuffer = new char[fileBufferSize];
memset(fileBuffer, 0, fileBufferSize);
// ファイルから波形データの読み込み
err = AudioFileReadBytes(mAudioFileID, false, 0, &dataSize, fileBuffer);
if (err) {
//NSLog(@"AudioFileReadBytes failed");
AudioFileClose(mAudioFileID);
delete [] fileBuffer;
return false;
}
AudioFileClose(mAudioFileID);
//ループを展開する
Float64 adjustment = 1.0;
outputFormat=fileDescription;
if (mInstData.loop) {
UInt32 plusalpha=0, framestocopy;
while (plusalpha < EXPAND_BUFFER) {
framestocopy =
(end_point-st_point)>(EXPAND_BUFFER-plusalpha)?(EXPAND_BUFFER-plusalpha):end_point-st_point;
memcpy(fileBuffer+((int)end_point+plusalpha)*fileDescription.mBytesPerFrame,
fileBuffer+(int)st_point*fileDescription.mBytesPerFrame,
framestocopy*fileDescription.mBytesPerFrame);
plusalpha += framestocopy;
}
dataSize += plusalpha*fileDescription.mBytesPerFrame;
//16サンプル境界にFIXする
adjustment = ( (long long)((end_point-st_point)/16) ) / ((end_point-st_point)/16.0);
st_point *= adjustment;
end_point *= adjustment;
}
outputFormat.mFormatID = kAudioFormatLinearPCM;
outputFormat.mFormatFlags = kAudioFormatFlagIsFloat | kAudioFormatFlagsNativeEndian;
outputFormat.mChannelsPerFrame = 1;
outputFormat.mBytesPerFrame = sizeof(float);
outputFormat.mBitsPerChannel = 32;
outputFormat.mBytesPerPacket = outputFormat.mBytesPerFrame;
// バイトオーダー変換用のコンバータを用意
AudioConverterRef converter;
err = AudioConverterNew(&fileDescription, &outputFormat, &converter);
if (err) {
//NSLog(@"AudioConverterNew failed");
delete [] fileBuffer;
return false;
}
//サンプリングレート変換の質を最高に設定
// if (fileDescription.mSampleRate != outputFormat.mSampleRate) {
// size = sizeof(UInt32);
// UInt32 setProp = kAudioConverterQuality_Max;
// AudioConverterSetProperty(converter, kAudioConverterSampleRateConverterQuality,
// size, &setProp);
//
// size = sizeof(UInt32);
// setProp = kAudioConverterSampleRateConverterComplexity_Mastering;
// AudioConverterSetProperty(converter, kAudioConverterSampleRateConverterComplexity,
// size, &setProp);
//
// }
//出力に必要十分なバッファサイズを得る
UInt32 outputSize = dataSize;
size = sizeof(UInt32);
err = AudioConverterGetProperty(converter, kAudioConverterPropertyCalculateOutputBufferSize,
&size, &outputSize);
if (err) {
//NSLog(@"AudioConverterGetProperty failed");
delete [] fileBuffer;
AudioConverterDispose(converter);
return false;
}
UInt32 monoSamples = outputSize/sizeof(float);
// バイトオーダー変換
float *monoData = new float[monoSamples];
AudioConverterConvertBuffer(converter, dataSize, fileBuffer,
&outputSize, monoData);
if(outputSize == 0) {
//NSLog(@"AudioConverterConvertBuffer failed");
delete [] fileBuffer;
AudioConverterDispose(converter);
return false;
}
//ループ長が16の倍数でない場合はサンプリングレート変換
Float64 inputSampleRate = fileDescription.mSampleRate;
Float64 outputSampleRate = fileDescription.mSampleRate * adjustment;
int outSamples = monoSamples;
if ( outputSampleRate == inputSampleRate ) {
m_pAudioData = new short[monoSamples];
for (int i=0; i<monoSamples; i++) {
m_pAudioData[i] = static_cast<short>(monoData[i] * 32768);
}
}
else {
outSamples = static_cast<int>(monoSamples / (inputSampleRate / outputSampleRate));
m_pAudioData = new short[outSamples];
resampling(monoData, monoSamples, inputSampleRate,
m_pAudioData, &outSamples, outputSampleRate);
}
// 後始末
delete [] monoData;
delete [] fileBuffer;
AudioConverterDispose(converter);
//Instデータの設定
if ( st_point > MAXIMUM_SAMPLES ) {
mInstData.lp = MAXIMUM_SAMPLES;
}
else {
mInstData.lp = st_point;
}
if ( end_point > MAXIMUM_SAMPLES ) {
mInstData.lp_end = MAXIMUM_SAMPLES;
}
else {
mInstData.lp_end = end_point;
}
mInstData.srcSamplerate = outputSampleRate;
mLoadedSamples = outSamples;
mIsLoaded = true;
return true;
#else
//Windowsのオーディオファイル読み込み処理
// ファイルを開く
HMMIO hmio = NULL;
MMRESULT err;
DWORD size;
hmio = mmioOpen( mPath, NULL, MMIO_READ );
if ( !hmio ) {
return false;
}
// RIFFチャンクを探す
MMCKINFO riffChunkInfo;
riffChunkInfo.fccType = mmioFOURCC('W', 'A', 'V', 'E');
err = mmioDescend( hmio, &riffChunkInfo, NULL, MMIO_FINDRIFF );
if ( err != MMSYSERR_NOERROR ) {
mmioClose( hmio, 0 );
return false;
}
if ( (riffChunkInfo.ckid != FOURCC_RIFF) || (riffChunkInfo.fccType != mmioFOURCC('W', 'A', 'V', 'E') ) ) {
mmioClose( hmio, 0 );
return false;
}
// フォーマットチャンクを探す
MMCKINFO formatChunkInfo;
formatChunkInfo.ckid = mmioFOURCC('f', 'm', 't', ' ');
err = mmioDescend( hmio, &formatChunkInfo, &riffChunkInfo, MMIO_FINDCHUNK );
if ( err != MMSYSERR_NOERROR ) {
mmioClose( hmio, 0 );
return false;
}
if ( formatChunkInfo.cksize < sizeof(PCMWAVEFORMAT) ) {
mmioClose( hmio, 0 );
return false;
}
//フォーマット情報を取得
WAVEFORMATEX pcmWaveFormat;
DWORD fmsize = (formatChunkInfo.cksize > sizeof(WAVEFORMATEX)) ? sizeof(WAVEFORMATEX):formatChunkInfo.cksize;
size = mmioRead( hmio, (HPSTR)&pcmWaveFormat, fmsize );
if ( size != fmsize ) {
mmioClose( hmio, 0 );
return false;
}
if ( pcmWaveFormat.wFormatTag != WAVE_FORMAT_PCM ) {
mmioClose( hmio, 0 );
return false;
}
mmioAscend(hmio, &formatChunkInfo, 0);
// Instrument情報を初期化
mInstData.basekey = 60;
mInstData.lowkey = 0;
mInstData.highkey = 127;
mInstData.loop = 0;
//smplチャンクを探す
MMCKINFO smplChunkInfo;
smplChunkInfo.ckid = mmioFOURCC('s', 'm', 'p', 'l');
err = mmioDescend( hmio, &smplChunkInfo, &riffChunkInfo, MMIO_FINDCHUNK );
if ( err != MMSYSERR_NOERROR ) {
smplChunkInfo.cksize = 0;
}
double st_point=0.0;
double end_point=0.0;
if ( smplChunkInfo.cksize >= sizeof(WAV_smpl) ) {
//ループポイントの取得
unsigned char *smplChunk = new unsigned char[smplChunkInfo.cksize];
size = mmioRead(hmio,(HPSTR)smplChunk, smplChunkInfo.cksize);
WAV_smpl *smpl = (WAV_smpl *)smplChunk;
if ( smpl->loops > 0 ) {
mInstData.loop = 1;
mInstData.basekey = smpl->note;
st_point = smpl->start;
end_point = smpl->end + 1; //SoundForge等では最終ポイントを含める解釈
}
else {
mInstData.basekey = smpl->note;
}
delete [] smplChunk;
}
mmioAscend(hmio, &formatChunkInfo, 0);
//dataチャンクを探す
MMCKINFO dataChunkInfo;
dataChunkInfo.ckid = mmioFOURCC('d', 'a', 't', 'a');
err = mmioDescend( hmio, &dataChunkInfo, &riffChunkInfo, MMIO_FINDCHUNK );
if( err != MMSYSERR_NOERROR ) {
mmioClose( hmio, 0 );
return false;
}
// 波形一時読み込み用メモリを確保
unsigned int dataSize = dataChunkInfo.cksize;
int bytesPerSample = pcmWaveFormat.nBlockAlign;
char *fileBuffer;
unsigned int fileBufferSize;
//容量制限
int dataSamples = dataSize / pcmWaveFormat.nBlockAlign;
if ( dataSamples > MAXIMUM_SAMPLES ) {
dataSize = MAXIMUM_SAMPLES * pcmWaveFormat.nBlockAlign;
}
if ( st_point > MAXIMUM_SAMPLES ) {
st_point = MAXIMUM_SAMPLES;
}
if ( end_point > MAXIMUM_SAMPLES ) {
end_point = MAXIMUM_SAMPLES;
}
if (mInstData.loop) {
fileBufferSize = dataSize+EXPAND_BUFFER*bytesPerSample;
}
else {
fileBufferSize = dataSize;
}
fileBuffer = new char[fileBufferSize];
memset(fileBuffer, 0, fileBufferSize);
// ファイルから波形データの読み込み
size = mmioRead(hmio, (HPSTR)fileBuffer, dataSize);
if ( size != dataSize ) {
mmioClose( hmio, 0 );
return false;
}
mmioClose(hmio,0);
//ループを展開する
double inputSampleRate = pcmWaveFormat.nSamplesPerSec;
double outputSampleRate = inputSampleRate;
if (mInstData.loop) {
unsigned int plusalpha=0;
double framestocopy;
while (plusalpha < EXPAND_BUFFER) {
framestocopy =
(end_point-st_point)>(EXPAND_BUFFER-plusalpha)?(EXPAND_BUFFER-plusalpha):end_point-st_point;
memcpy(fileBuffer+((int)end_point+plusalpha)*bytesPerSample,
fileBuffer+(int)st_point*bytesPerSample,
static_cast<size_t>(framestocopy*bytesPerSample));
plusalpha += static_cast<unsigned int>(framestocopy);
}
dataSize += plusalpha*bytesPerSample;
//16サンプル境界にFIXする
double adjustment = ( (long long)((end_point-st_point)/16) ) / ((end_point-st_point)/16.0);
outputSampleRate *= adjustment;
st_point *= adjustment;
end_point *= adjustment;
}
//一旦floatモノラルデータに変換
int bytesPerChannel = bytesPerSample / pcmWaveFormat.nChannels;
unsigned int inputPtr = 0;
unsigned int outputPtr = 0;
int monoSamples = dataSize / bytesPerSample;
float range = static_cast<float>((1<<(bytesPerChannel*8-1)) * pcmWaveFormat.nChannels);
float *monoData = new float[monoSamples];
while (inputPtr < dataSize) {
int frameSum = 0;
for (int ch=0; ch<pcmWaveFormat.nChannels; ch++) {
for (int i=0; i<bytesPerChannel; i++) {
if (i<bytesPerChannel-1) {
frameSum += (unsigned char)fileBuffer[inputPtr] << (8*i);
}
else {
frameSum += fileBuffer[inputPtr] << (8*i);
}
inputPtr++;
}
}
monoData[outputPtr] = frameSum / range;
outputPtr++;
}
//ループ長が16の倍数でない場合はサンプリングレート変換
int outSamples = monoSamples;
if ( outputSampleRate == inputSampleRate ) {
m_pAudioData = new short[monoSamples];
for (int i=0; i<monoSamples; i++) {
m_pAudioData[i] = static_cast<short>(monoData[i] * 32768);
}
}
else {
outSamples = static_cast<int>(monoSamples / (inputSampleRate / outputSampleRate));
m_pAudioData = new short[outSamples];
resampling(monoData, monoSamples, inputSampleRate,
m_pAudioData, &outSamples, outputSampleRate);
}
// 後始末
delete [] fileBuffer;
delete [] monoData;
//Instデータの設定
mInstData.lp = static_cast<int>(st_point);
mInstData.lp_end = static_cast<int>(end_point);
mInstData.srcSamplerate = outputSampleRate;
mLoadedSamples = outSamples;
mIsLoaded = true;
return true;
#endif
}
int main (int argc, const char * argv[])
{
#if TARGET_OS_WIN32
InitializeQTML(0L);
#endif
const char *fpath = NULL;
Float32 volume = 1;
Float32 duration = -1;
Float32 currentTime = 0.0;
Float32 rate = 0;
int rQuality = 0;
bool doPrint = false;
for (int i = 1; i < argc; ++i) {
const char *arg = argv[i];
if (arg[0] != '-') {
if (fpath != NULL) {
fprintf(stderr, "may only specify one file to play\n");
usage();
}
fpath = arg;
} else {
arg += 1;
if (arg[0] == 'v' || !strcmp(arg, "-volume")) {
if (++i == argc)
MissingArgument();
arg = argv[i];
sscanf(arg, "%f", &volume);
} else if (arg[0] == 't' || !strcmp(arg, "-time")) {
if (++i == argc)
MissingArgument();
arg = argv[i];
sscanf(arg, "%f", &duration);
} else if (arg[0] == 'r' || !strcmp(arg, "-rate")) {
if (++i == argc)
MissingArgument();
arg = argv[i];
sscanf(arg, "%f", &rate);
} else if (arg[0] == 'q' || !strcmp(arg, "-rQuality")) {
if (++i == argc)
MissingArgument();
arg = argv[i];
sscanf(arg, "%d", &rQuality);
} else if (arg[0] == 'h' || !strcmp(arg, "-help")) {
usage();
} else if (arg[0] == 'd' || !strcmp(arg, "-debug")) {
doPrint = true;
} else {
fprintf(stderr, "unknown argument: %s\n\n", arg - 1);
usage();
}
}
}
if (fpath == NULL)
usage();
if (doPrint)
printf ("Playing file: %s\n", fpath);
try {
AQTestInfo myInfo;
CFURLRef sndFile = CFURLCreateFromFileSystemRepresentation (NULL, (const UInt8 *)fpath, strlen(fpath), false);
if (!sndFile) XThrowIfError (!sndFile, "can't parse file path");
OSStatus result = AudioFileOpenURL (sndFile, 0x1/*fsRdPerm*/, 0/*inFileTypeHint*/, &myInfo.mAudioFile);
CFRelease (sndFile);
XThrowIfError(result, "AudioFileOpen failed");
UInt32 size;
XThrowIfError(AudioFileGetPropertyInfo(myInfo.mAudioFile,
kAudioFilePropertyFormatList, &size, NULL), "couldn't get file's format list info");
UInt32 numFormats = size / sizeof(AudioFormatListItem);
AudioFormatListItem *formatList = new AudioFormatListItem [ numFormats ];
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile,
kAudioFilePropertyFormatList, &size, formatList), "couldn't get file's data format");
numFormats = size / sizeof(AudioFormatListItem); // we need to reassess the actual number of formats when we get it
if (numFormats == 1) {
// this is the common case
myInfo.mDataFormat = formatList[0].mASBD;
// see if there is a channel layout (multichannel file)
result = AudioFileGetPropertyInfo(myInfo.mAudioFile, kAudioFilePropertyChannelLayout, &myInfo.mChannelLayoutSize, NULL);
if (result == noErr && myInfo.mChannelLayoutSize > 0) {
myInfo.mChannelLayout = (AudioChannelLayout *)new char [myInfo.mChannelLayoutSize];
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile, kAudioFilePropertyChannelLayout, &myInfo.mChannelLayoutSize, myInfo.mChannelLayout), "get audio file's channel layout");
}
} else {
if (doPrint) {
printf ("File has a %d layered data format:\n", (int)numFormats);
for (unsigned int i = 0; i < numFormats; ++i)
CAStreamBasicDescription(formatList[i].mASBD).Print();
}
// now we should look to see which decoders we have on the system
XThrowIfError(AudioFormatGetPropertyInfo(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size), "couldn't get decoder id's");
UInt32 numDecoders = size / sizeof(OSType);
OSType *decoderIDs = new OSType [ numDecoders ];
XThrowIfError(AudioFormatGetProperty(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size, decoderIDs), "couldn't get decoder id's");
unsigned int i = 0;
for (; i < numFormats; ++i) {
OSType decoderID = formatList[i].mASBD.mFormatID;
bool found = false;
for (unsigned int j = 0; j < numDecoders; ++j) {
if (decoderID == decoderIDs[j]) {
found = true;
break;
}
}
if (found) break;
}
delete [] decoderIDs;
if (i >= numFormats) {
fprintf (stderr, "Cannot play any of the formats in this file\n");
throw kAudioFileUnsupportedDataFormatError;
}
myInfo.mDataFormat = formatList[i].mASBD;
myInfo.mChannelLayoutSize = sizeof(AudioChannelLayout);
myInfo.mChannelLayout = (AudioChannelLayout*)new char [myInfo.mChannelLayoutSize];
myInfo.mChannelLayout->mChannelLayoutTag = formatList[i].mChannelLayoutTag;
myInfo.mChannelLayout->mChannelBitmap = 0;
myInfo.mChannelLayout->mNumberChannelDescriptions = 0;
}
delete [] formatList;
if (doPrint) {
printf ("Playing format: ");
myInfo.mDataFormat.Print();
}
XThrowIfError(AudioQueueNewOutput(&myInfo.mDataFormat, AQTestBufferCallback, &myInfo,
CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &myInfo.mQueue), "AudioQueueNew failed");
UInt32 bufferByteSize;
// we need to calculate how many packets we read at a time, and how big a buffer we need
// we base this on the size of the packets in the file and an approximate duration for each buffer
{
bool isFormatVBR = (myInfo.mDataFormat.mBytesPerPacket == 0 || myInfo.mDataFormat.mFramesPerPacket == 0);
// first check to see what the max size of a packet is - if it is bigger
// than our allocation default size, that needs to become larger
UInt32 maxPacketSize;
size = sizeof(maxPacketSize);
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile,
kAudioFilePropertyPacketSizeUpperBound, &size, &maxPacketSize), "couldn't get file's max packet size");
// adjust buffer size to represent about a half second of audio based on this format
CalculateBytesForTime (myInfo.mDataFormat, maxPacketSize, 0.5/*seconds*/, &bufferByteSize, &myInfo.mNumPacketsToRead);
if (isFormatVBR)
myInfo.mPacketDescs = new AudioStreamPacketDescription [myInfo.mNumPacketsToRead];
else
myInfo.mPacketDescs = NULL; // we don't provide packet descriptions for constant bit rate formats (like linear PCM)
if (doPrint)
printf ("Buffer Byte Size: %d, Num Packets to Read: %d\n", (int)bufferByteSize, (int)myInfo.mNumPacketsToRead);
}
// (2) If the file has a cookie, we should get it and set it on the AQ
size = sizeof(UInt32);
result = AudioFileGetPropertyInfo (myInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size) {
char* cookie = new char [size];
XThrowIfError (AudioFileGetProperty (myInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, cookie), "get cookie from file");
XThrowIfError (AudioQueueSetProperty(myInfo.mQueue, kAudioQueueProperty_MagicCookie, cookie, size), "set cookie on queue");
delete [] cookie;
}
// set ACL if there is one
if (myInfo.mChannelLayout)
XThrowIfError(AudioQueueSetProperty(myInfo.mQueue, kAudioQueueProperty_ChannelLayout, myInfo.mChannelLayout, myInfo.mChannelLayoutSize), "set channel layout on queue");
// prime the queue with some data before starting
myInfo.mDone = false;
myInfo.mCurrentPacket = 0;
for (int i = 0; i < kNumberBuffers; ++i) {
XThrowIfError(AudioQueueAllocateBuffer(myInfo.mQueue, bufferByteSize, &myInfo.mBuffers[i]), "AudioQueueAllocateBuffer failed");
AQTestBufferCallback (&myInfo, myInfo.mQueue, myInfo.mBuffers[i]);
if (myInfo.mDone) break;
}
// set the volume of the queue
XThrowIfError (AudioQueueSetParameter(myInfo.mQueue, kAudioQueueParam_Volume, volume), "set queue volume");
XThrowIfError (AudioQueueAddPropertyListener (myInfo.mQueue, kAudioQueueProperty_IsRunning, MyAudioQueuePropertyListenerProc, NULL), "add listener");
#if !TARGET_OS_IPHONE
if (rate > 0) {
UInt32 propValue = 1;
XThrowIfError (AudioQueueSetProperty (myInfo.mQueue, kAudioQueueProperty_EnableTimePitch, &propValue, sizeof(propValue)), "enable time pitch");
propValue = rQuality ? kAudioQueueTimePitchAlgorithm_Spectral : kAudioQueueTimePitchAlgorithm_TimeDomain;
XThrowIfError (AudioQueueSetProperty (myInfo.mQueue, kAudioQueueProperty_TimePitchAlgorithm, &propValue, sizeof(propValue)), "time pitch algorithm");
propValue = (rate == 1.0f ? 1 : 0); // bypass rate if 1.0
XThrowIfError (AudioQueueSetProperty (myInfo.mQueue, kAudioQueueProperty_TimePitchBypass, &propValue, sizeof(propValue)), "bypass time pitch");
if (rate != 1) {
XThrowIfError (AudioQueueSetParameter (myInfo.mQueue, kAudioQueueParam_PlayRate, rate), "set playback rate");
}
if (doPrint) {
printf ("Enable rate-scaled playback (rate = %.2f) using %s algorithm\n", rate, (rQuality ? "Spectral": "Time Domain"));
}
}
#endif
// lets start playing now - stop is called in the AQTestBufferCallback when there's
// no more to read from the file
XThrowIfError(AudioQueueStart(myInfo.mQueue, NULL), "AudioQueueStart failed");
do {
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
currentTime += .25;
if (duration > 0 && currentTime >= duration)
break;
} while (gIsRunning);
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1, false);
XThrowIfError(AudioQueueDispose(myInfo.mQueue, true), "AudioQueueDispose(true) failed");
XThrowIfError(AudioFileClose(myInfo.mAudioFile), "AudioQueueDispose(false) failed");
}
catch (CAXException e) {
char buf[256];
fprintf(stderr, "Error: %s (%s)\n", e.mOperation, e.FormatError(buf));
}
catch (...) {
fprintf(stderr, "Unspecified exception\n");
}
return 0;
}
void playFile(const char* filePath) {
CFURLRef audioFileURL = CFURLCreateFromFileSystemRepresentation(NULL,
(UInt8*) filePath,
strlen (filePath),
false);
OSStatus result = AudioFileOpenURL(audioFileURL,
fsRdPerm,
0,
&aqData.mAudioFile);
CFRelease (audioFileURL);
UInt32 dataFormatSize = sizeof (aqData.mDataFormat);
AudioFileGetProperty(aqData.mAudioFile,
kAudioFilePropertyDataFormat,
&dataFormatSize,
&aqData.mDataFormat);
AudioQueueNewOutput(&aqData.mDataFormat,
HandleOutputBuffer,
&aqData,
CFRunLoopGetCurrent(),
kCFRunLoopCommonModes,
0,
&aqData.mQueue);
UInt32 maxPacketSize;
UInt32 propertySize = sizeof (maxPacketSize);
AudioFileGetProperty(aqData.mAudioFile,
kAudioFilePropertyPacketSizeUpperBound,
&propertySize,
&maxPacketSize);
DeriveBufferSize(&aqData.mDataFormat,
maxPacketSize,
0.5,
&aqData.bufferByteSize,
&aqData.mNumPacketsToRead);
bool isFormatVBR = (aqData.mDataFormat.mBytesPerPacket == 0 ||
aqData.mDataFormat.mFramesPerPacket == 0);
if (isFormatVBR) {
// LOG("%s\n","VBR");
aqData.mPacketDescs =
(AudioStreamPacketDescription*)
malloc (aqData.mNumPacketsToRead * sizeof (AudioStreamPacketDescription));
} else {
aqData.mPacketDescs = NULL;
}
UInt32 cookieSize = sizeof (UInt32);
bool couldNotGetProperty =
AudioFileGetPropertyInfo (aqData.mAudioFile,
kAudioFilePropertyMagicCookieData,
&cookieSize,
NULL);
if (!couldNotGetProperty && cookieSize) {
char* magicCookie = (char *) malloc (cookieSize);
AudioFileGetProperty (aqData.mAudioFile,
kAudioFilePropertyMagicCookieData,
&cookieSize,
magicCookie);
AudioQueueSetProperty (aqData.mQueue,
kAudioQueueProperty_MagicCookie,
magicCookie,
cookieSize);
free (magicCookie);
}
aqData.mCurrentPacket = 0;
aqData.mIsRunning = true;
//LOG("%d\n", aqData.mNumPacketsToRead);
for (int i = 0; i < kNumberBuffers; ++i) {
AudioQueueAllocateBuffer (aqData.mQueue,
aqData.bufferByteSize,
&aqData.mBuffers[i]);
HandleOutputBuffer (&aqData,
aqData.mQueue,
aqData.mBuffers[i]);
}
Float32 gain = 1.0;
// Optionally, allow user to override gain setting here
AudioQueueSetParameter (aqData.mQueue,
kAudioQueueParam_Volume,
gain);
//LOG("%s\n","Starting play");
// IMPORTANT NOTE : This value must be set
// Before the call to HandleOutputBuffer
//a qData.mIsRunning = true;
AudioQueueStart (aqData.mQueue,
NULL);
}
void MakeSimpleGraph (AUGraph &theGraph, CAAudioUnit &fileAU, CAStreamBasicDescription &fileFormat, AudioFileID audioFile)
{
XThrowIfError (NewAUGraph (&theGraph), "NewAUGraph");
CAComponentDescription cd;
// output node
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
AUNode outputNode;
XThrowIfError (AUGraphAddNode (theGraph, &cd, &outputNode), "AUGraphAddNode");
// file AU node
AUNode fileNode;
cd.componentType = kAudioUnitType_Generator;
cd.componentSubType = kAudioUnitSubType_AudioFilePlayer;
XThrowIfError (AUGraphAddNode (theGraph, &cd, &fileNode), "AUGraphAddNode");
// connect & setup
XThrowIfError (AUGraphOpen (theGraph), "AUGraphOpen");
// install overload listener to detect when something is wrong
AudioUnit anAU;
XThrowIfError (AUGraphNodeInfo(theGraph, fileNode, NULL, &anAU), "AUGraphNodeInfo");
fileAU = CAAudioUnit (fileNode, anAU);
// prepare the file AU for playback
// set its output channels
XThrowIfError (fileAU.SetNumberChannels (kAudioUnitScope_Output, 0, fileFormat.NumberChannels()), "SetNumberChannels");
// set the output sample rate of the file AU to be the same as the file:
XThrowIfError (fileAU.SetSampleRate (kAudioUnitScope_Output, 0, fileFormat.mSampleRate), "SetSampleRate");
// load in the file
XThrowIfError (fileAU.SetProperty(kAudioUnitProperty_ScheduledFileIDs,
kAudioUnitScope_Global, 0, &audioFile, sizeof(audioFile)), "SetScheduleFile");
XThrowIfError (AUGraphConnectNodeInput (theGraph, fileNode, 0, outputNode, 0), "AUGraphConnectNodeInput");
// AT this point we make sure we have the file player AU initialized
// this also propogates the output format of the AU to the output unit
XThrowIfError (AUGraphInitialize (theGraph), "AUGraphInitialize");
// workaround a race condition in the file player AU
usleep (10 * 1000);
// if we have a surround file, then we should try to tell the output AU what the order of the channels will be
if (fileFormat.NumberChannels() > 2) {
UInt32 layoutSize = 0;
OSStatus err;
XThrowIfError (err = AudioFileGetPropertyInfo (audioFile, kAudioFilePropertyChannelLayout, &layoutSize, NULL),
"kAudioFilePropertyChannelLayout");
if (!err && layoutSize) {
char* layout = new char[layoutSize];
err = AudioFileGetProperty(audioFile, kAudioFilePropertyChannelLayout, &layoutSize, layout);
XThrowIfError (err, "Get Layout From AudioFile");
// ok, now get the output AU and set its layout
XThrowIfError (AUGraphNodeInfo(theGraph, outputNode, NULL, &anAU), "AUGraphNodeInfo");
err = AudioUnitSetProperty (anAU, kAudioUnitProperty_AudioChannelLayout,
kAudioUnitScope_Input, 0, layout, layoutSize);
XThrowIfError (err, "kAudioUnitProperty_AudioChannelLayout");
delete [] layout;
}
}
}
bool SFB::Audio::CoreAudioDecoder::_Open(CFErrorRef *error)
{
// Open the input file
OSStatus result = AudioFileOpenWithCallbacks(this, myAudioFile_ReadProc, nullptr, myAudioFile_GetSizeProc, nullptr, 0, &mAudioFile);
if(noErr != result) {
LOGGER_CRIT("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileOpenWithCallbacks failed: " << result);
if(error) {
SFB::CFString description = CFCopyLocalizedString(CFSTR("The format of the file “%@” was not recognized."), "");
SFB::CFString failureReason = CFCopyLocalizedString(CFSTR("File Format Not Recognized"), "");
SFB::CFString recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
return false;
}
result = ExtAudioFileWrapAudioFileID(mAudioFile, false, &mExtAudioFile);
if(noErr != result) {
LOGGER_CRIT("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileWrapAudioFileID failed: " << result);
if(error) {
SFB::CFString description = CFCopyLocalizedString(CFSTR("The format of the file “%@” was not recognized."), "");
SFB::CFString failureReason = CFCopyLocalizedString(CFSTR("File Format Not Recognized"), "");
SFB::CFString recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
return false;
}
// Query file format
UInt32 dataSize = sizeof(mSourceFormat);
result = ExtAudioFileGetProperty(mExtAudioFile, kExtAudioFileProperty_FileDataFormat, &dataSize, &mSourceFormat);
if(noErr != result) {
LOGGER_CRIT("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileGetProperty (kExtAudioFileProperty_FileDataFormat) failed: " << result);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
// Tell the ExtAudioFile the format in which we'd like our data
// For Linear PCM formats, leave the data untouched
if(kAudioFormatLinearPCM == mSourceFormat.mFormatID)
mFormat = mSourceFormat;
// For Apple Lossless, convert to high-aligned signed ints in 32 bits
else if(kAudioFormatAppleLossless == mSourceFormat.mFormatID) {
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsAlignedHigh;
mFormat.mSampleRate = mSourceFormat.mSampleRate;
mFormat.mChannelsPerFrame = mSourceFormat.mChannelsPerFrame;
if(kAppleLosslessFormatFlag_16BitSourceData == mSourceFormat.mFormatFlags)
mFormat.mBitsPerChannel = 16;
else if(kAppleLosslessFormatFlag_20BitSourceData == mSourceFormat.mFormatFlags)
mFormat.mBitsPerChannel = 20;
else if(kAppleLosslessFormatFlag_24BitSourceData == mSourceFormat.mFormatFlags)
mFormat.mBitsPerChannel = 24;
else if(kAppleLosslessFormatFlag_32BitSourceData == mSourceFormat.mFormatFlags)
mFormat.mBitsPerChannel = 32;
mFormat.mBytesPerPacket = 4 * mFormat.mChannelsPerFrame;
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
// For all other formats convert to the canonical Core Audio format
else {
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mSampleRate = mSourceFormat.mSampleRate;
mFormat.mChannelsPerFrame = mSourceFormat.mChannelsPerFrame;
mFormat.mBitsPerChannel = 32;
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
}
result = ExtAudioFileSetProperty(mExtAudioFile, kExtAudioFileProperty_ClientDataFormat, sizeof(mFormat), &mFormat);
if(noErr != result) {
LOGGER_CRIT("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileSetProperty (kExtAudioFileProperty_ClientDataFormat) failed: " << result);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
// Setup the channel layout
// There is a bug in EAF where if the underlying AF doesn't return a channel layout it returns an empty struct
// result = ExtAudioFileGetPropertyInfo(mExtAudioFile, kExtAudioFileProperty_FileChannelLayout, &dataSize, nullptr);
result = AudioFileGetPropertyInfo(mAudioFile, kAudioFilePropertyChannelLayout, &dataSize, nullptr);
if(noErr == result) {
auto channelLayout = (AudioChannelLayout *)malloc(dataSize);
// result = ExtAudioFileGetProperty(mExtAudioFile, kExtAudioFileProperty_FileChannelLayout, &dataSize, mChannelLayout);
result = AudioFileGetProperty(mAudioFile, kAudioFilePropertyChannelLayout, &dataSize, channelLayout);
if(noErr != result) {
// LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileGetProperty (kExtAudioFileProperty_FileChannelLayout) failed: " << result);
LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileGetProperty (kAudioFilePropertyChannelLayout) failed: " << result);
free(channelLayout);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
mChannelLayout = channelLayout;
free(channelLayout);
}
else
// LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileGetPropertyInfo (kExtAudioFileProperty_FileChannelLayout) failed: " << result);
LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileGetPropertyInfo (kAudioFilePropertyChannelLayout) failed: " << result);
// Work around bugs in ExtAudioFile: http://lists.apple.com/archives/coreaudio-api/2009/Nov/msg00119.html
// Synopsis: ExtAudioFileTell() and ExtAudioFileSeek() are broken for m4a files
AudioFileID audioFile;
dataSize = sizeof(audioFile);
result = ExtAudioFileGetProperty(mExtAudioFile, kExtAudioFileProperty_AudioFile, &dataSize, &audioFile);
if(noErr != result) {
LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileGetProperty (kExtAudioFileProperty_AudioFile) failed: " << result);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
AudioFileTypeID fileFormat;
dataSize = sizeof(fileFormat);
result = AudioFileGetProperty(audioFile, kAudioFilePropertyFileFormat, &dataSize, &fileFormat);
if(noErr != result) {
LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileGetProperty (kAudioFilePropertyFileFormat) failed: " << result);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
if(kAudioFileM4AType == fileFormat || kAudioFileMPEG4Type == fileFormat || kAudioFileAAC_ADTSType == fileFormat)
mUseM4AWorkarounds = true;
#if 0
// This was supposed to determine if ExtAudioFile had been fixed, but even though
// it passes on 10.6.2 things are not behaving properly
SInt64 currentFrame = -1;
result = ExtAudioFileTell(mExtAudioFile, ¤tFrame);
if(noErr != result) {
LOGGER_ERR("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileTell failed: " << result);
result = ExtAudioFileDispose(mExtAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "ExtAudioFileDispose failed: " << result);
result = AudioFileClose(mAudioFile);
if(noErr != result)
LOGGER_NOTICE("org.sbooth.AudioEngine.Decoder.CoreAudio", "AudioFileClose failed: " << result);
mAudioFile = nullptr;
mExtAudioFile = nullptr;
return false;
}
if(0 > currentFrame)
mUseM4AWorkarounds = true;
#endif
return true;
}
void DoAQOfflineRender(CFURLRef sourceURL, CFURLRef destinationURL)
{
// main audio queue code
try {
AQTestInfo myInfo;
myInfo.mDone = false;
myInfo.mFlushed = false;
myInfo.mCurrentPacket = 0;
// get the source file
XThrowIfError(AudioFileOpenURL(sourceURL, 0x01/*fsRdPerm*/, 0/*inFileTypeHint*/, &myInfo.mAudioFile), "AudioFileOpen failed");
UInt32 size = sizeof(myInfo.mDataFormat);
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile, kAudioFilePropertyDataFormat, &size, &myInfo.mDataFormat), "couldn't get file's data format");
printf ("File format: "); myInfo.mDataFormat.Print();
// create a new audio queue output
XThrowIfError(AudioQueueNewOutput(&myInfo.mDataFormat, // The data format of the audio to play. For linear PCM, only interleaved formats are supported.
AQTestBufferCallback, // A callback function to use with the playback audio queue.
&myInfo, // A custom data structure for use with the callback function.
CFRunLoopGetCurrent(), // The event loop on which the callback function pointed to by the inCallbackProc parameter is to be called.
// If you specify NULL, the callback is invoked on one of the audio queue’s internal threads.
kCFRunLoopCommonModes, // The run loop mode in which to invoke the callback function specified in the inCallbackProc parameter.
0, // Reserved for future use. Must be 0.
&myInfo.mQueue), // On output, the newly created playback audio queue object.
"AudioQueueNew failed");
UInt32 bufferByteSize;
// we need to calculate how many packets we read at a time and how big a buffer we need
// we base this on the size of the packets in the file and an approximate duration for each buffer
{
bool isFormatVBR = (myInfo.mDataFormat.mBytesPerPacket == 0 || myInfo.mDataFormat.mFramesPerPacket == 0);
// first check to see what the max size of a packet is - if it is bigger
// than our allocation default size, that needs to become larger
UInt32 maxPacketSize;
size = sizeof(maxPacketSize);
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile, kAudioFilePropertyPacketSizeUpperBound, &size, &maxPacketSize), "couldn't get file's max packet size");
// adjust buffer size to represent about a second of audio based on this format
CalculateBytesForTime(myInfo.mDataFormat, maxPacketSize, 1.0/*seconds*/, &bufferByteSize, &myInfo.mNumPacketsToRead);
if (isFormatVBR) {
myInfo.mPacketDescs = new AudioStreamPacketDescription [myInfo.mNumPacketsToRead];
} else {
myInfo.mPacketDescs = NULL; // we don't provide packet descriptions for constant bit rate formats (like linear PCM)
}
printf ("Buffer Byte Size: %d, Num Packets to Read: %d\n", (int)bufferByteSize, (int)myInfo.mNumPacketsToRead);
}
// if the file has a magic cookie, we should get it and set it on the AQ
size = sizeof(UInt32);
OSStatus result = AudioFileGetPropertyInfo (myInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size) {
char* cookie = new char [size];
XThrowIfError (AudioFileGetProperty (myInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, cookie), "get cookie from file");
XThrowIfError (AudioQueueSetProperty(myInfo.mQueue, kAudioQueueProperty_MagicCookie, cookie, size), "set cookie on queue");
delete [] cookie;
}
// channel layout?
OSStatus err = AudioFileGetPropertyInfo(myInfo.mAudioFile, kAudioFilePropertyChannelLayout, &size, NULL);
AudioChannelLayout *acl = NULL;
if (err == noErr && size > 0) {
acl = (AudioChannelLayout *)malloc(size);
XThrowIfError(AudioFileGetProperty(myInfo.mAudioFile, kAudioFilePropertyChannelLayout, &size, acl), "get audio file's channel layout");
XThrowIfError(AudioQueueSetProperty(myInfo.mQueue, kAudioQueueProperty_ChannelLayout, acl, size), "set channel layout on queue");
}
//allocate the input read buffer
XThrowIfError(AudioQueueAllocateBuffer(myInfo.mQueue, bufferByteSize, &myInfo.mBuffer), "AudioQueueAllocateBuffer");
// prepare a canonical interleaved capture format
CAStreamBasicDescription captureFormat;
captureFormat.mSampleRate = myInfo.mDataFormat.mSampleRate;
captureFormat.SetAUCanonical(myInfo.mDataFormat.mChannelsPerFrame, true); // interleaved
XThrowIfError(AudioQueueSetOfflineRenderFormat(myInfo.mQueue, &captureFormat, acl), "set offline render format");
ExtAudioFileRef captureFile;
// prepare a 16-bit int file format, sample channel count and sample rate
CAStreamBasicDescription dstFormat;
dstFormat.mSampleRate = myInfo.mDataFormat.mSampleRate;
dstFormat.mChannelsPerFrame = myInfo.mDataFormat.mChannelsPerFrame;
dstFormat.mFormatID = kAudioFormatLinearPCM;
dstFormat.mFormatFlags = kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsSignedInteger; // little-endian
dstFormat.mBitsPerChannel = 16;
dstFormat.mBytesPerPacket = dstFormat.mBytesPerFrame = 2 * dstFormat.mChannelsPerFrame;
dstFormat.mFramesPerPacket = 1;
// create the capture file
XThrowIfError(ExtAudioFileCreateWithURL(destinationURL, kAudioFileCAFType, &dstFormat, acl, kAudioFileFlags_EraseFile, &captureFile), "ExtAudioFileCreateWithURL");
// set the capture file's client format to be the canonical format from the queue
XThrowIfError(ExtAudioFileSetProperty(captureFile, kExtAudioFileProperty_ClientDataFormat, sizeof(AudioStreamBasicDescription), &captureFormat), "set ExtAudioFile client format");
// allocate the capture buffer, just keep it at half the size of the enqueue buffer
// we don't ever want to pull any faster than we can push data in for render
// this 2:1 ratio keeps the AQ Offline Render happy
const UInt32 captureBufferByteSize = bufferByteSize / 2;
AudioQueueBufferRef captureBuffer;
AudioBufferList captureABL;
XThrowIfError(AudioQueueAllocateBuffer(myInfo.mQueue, captureBufferByteSize, &captureBuffer), "AudioQueueAllocateBuffer");
captureABL.mNumberBuffers = 1;
captureABL.mBuffers[0].mData = captureBuffer->mAudioData;
captureABL.mBuffers[0].mNumberChannels = captureFormat.mChannelsPerFrame;
// lets start playing now - stop is called in the AQTestBufferCallback when there's
// no more to read from the file
XThrowIfError(AudioQueueStart(myInfo.mQueue, NULL), "AudioQueueStart failed");
AudioTimeStamp ts;
ts.mFlags = kAudioTimeStampSampleTimeValid;
ts.mSampleTime = 0;
// we need to call this once asking for 0 frames
XThrowIfError(AudioQueueOfflineRender(myInfo.mQueue, &ts, captureBuffer, 0), "AudioQueueOfflineRender");
// we need to enqueue a buffer after the queue has started
AQTestBufferCallback(&myInfo, myInfo.mQueue, myInfo.mBuffer);
while (true) {
UInt32 reqFrames = captureBufferByteSize / captureFormat.mBytesPerFrame;
XThrowIfError(AudioQueueOfflineRender(myInfo.mQueue, &ts, captureBuffer, reqFrames), "AudioQueueOfflineRender");
captureABL.mBuffers[0].mData = captureBuffer->mAudioData;
captureABL.mBuffers[0].mDataByteSize = captureBuffer->mAudioDataByteSize;
UInt32 writeFrames = captureABL.mBuffers[0].mDataByteSize / captureFormat.mBytesPerFrame;
printf("t = %.f: AudioQueueOfflineRender: req %d fr/%d bytes, got %ld fr/%d bytes\n", ts.mSampleTime, (int)reqFrames, (int)captureBufferByteSize, writeFrames, (int)captureABL.mBuffers[0].mDataByteSize);
XThrowIfError(ExtAudioFileWrite(captureFile, writeFrames, &captureABL), "ExtAudioFileWrite");
if (myInfo.mFlushed) break;
ts.mSampleTime += writeFrames;
}
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1, false);
XThrowIfError(AudioQueueDispose(myInfo.mQueue, true), "AudioQueueDispose(true) failed");
XThrowIfError(AudioFileClose(myInfo.mAudioFile), "AudioQueueDispose(false) failed");
XThrowIfError(ExtAudioFileDispose(captureFile), "ExtAudioFileDispose failed");
if (myInfo.mPacketDescs) delete [] myInfo.mPacketDescs;
if (acl) free(acl);
}
catch (CAXException e) {
char buf[256];
fprintf(stderr, "Error: %s (%s)\n", e.mOperation, e.FormatError(buf));
}
return;
}
// _______________________________________________________________________________________
//
// called to create the file -- or update its format/channel layout/properties based on an encoder
// setting change
void CAAudioFile::FileFormatChanged(const FSRef *parentDir, CFStringRef filename, AudioFileTypeID filetype)
{
LOG_FUNCTION("CAAudioFile::FileFormatChanged", "%p", this);
XThrowIf(mMode != kPreparingToCreate && mMode != kPreparingToWrite, kExtAudioFileError_InvalidOperationOrder, "new file not prepared");
UInt32 propertySize;
OSStatus err;
AudioStreamBasicDescription saveFileDataFormat = mFileDataFormat;
#if VERBOSE_CONVERTER
mFileDataFormat.PrintFormat(stdout, "", "Specified file data format");
#endif
// Find out the actual format the converter will produce. This is necessary in
// case the bitrate has forced a lower sample rate, which needs to be set correctly
// in the stream description passed to AudioFileCreate.
if (mConverter != NULL) {
propertySize = sizeof(AudioStreamBasicDescription);
Float64 origSampleRate = mFileDataFormat.mSampleRate;
XThrowIfError(AudioConverterGetProperty(mConverter, kAudioConverterCurrentOutputStreamDescription, &propertySize, &mFileDataFormat), "get audio converter's output stream description");
// do the same for the channel layout being output by the converter
#if VERBOSE_CONVERTER
mFileDataFormat.PrintFormat(stdout, "", "Converter output");
#endif
if (fiszero(mFileDataFormat.mSampleRate))
mFileDataFormat.mSampleRate = origSampleRate;
err = AudioConverterGetPropertyInfo(mConverter, kAudioConverterOutputChannelLayout, &propertySize, NULL);
if (err == noErr && propertySize > 0) {
AudioChannelLayout *layout = static_cast<AudioChannelLayout *>(malloc(propertySize));
err = AudioConverterGetProperty(mConverter, kAudioConverterOutputChannelLayout, &propertySize, layout);
if (err) {
free(layout);
XThrow(err, "couldn't get audio converter's output channel layout");
}
mFileChannelLayout = layout;
#if VERBOSE_CHANNELMAP
printf("got new file's channel layout from converter: %s\n", CAChannelLayouts::ConstantToString(mFileChannelLayout.Tag()));
#endif
free(layout);
}
}
// create the output file
if (mMode == kPreparingToCreate) {
CAStreamBasicDescription newFileDataFormat = mFileDataFormat;
if (fiszero(newFileDataFormat.mSampleRate))
newFileDataFormat.mSampleRate = 44100; // just make something up for now
#if VERBOSE_CONVERTER
newFileDataFormat.PrintFormat(stdout, "", "Applied to new file");
#endif
XThrowIfError(AudioFileCreate(parentDir, filename, filetype, &newFileDataFormat, 0, &mFSRef, &mAudioFile), "create audio file");
mMode = kPreparingToWrite;
mOwnOpenFile = true;
} else if (saveFileDataFormat != mFileDataFormat || fnotequal(saveFileDataFormat.mSampleRate, mFileDataFormat.mSampleRate)) {
// second check must be explicit since operator== on ASBD treats SR of zero as "don't care"
if (fiszero(mFileDataFormat.mSampleRate))
mFileDataFormat.mSampleRate = mClientDataFormat.mSampleRate;
#if VERBOSE_CONVERTER
mFileDataFormat.PrintFormat(stdout, "", "Applied to new file");
#endif
XThrowIf(fiszero(mFileDataFormat.mSampleRate), kExtAudioFileError_InvalidDataFormat, "file's sample rate is 0");
XThrowIfError(AudioFileSetProperty(mAudioFile, kAudioFilePropertyDataFormat, sizeof(AudioStreamBasicDescription), &mFileDataFormat), "couldn't update file's data format");
}
UInt32 deferSizeUpdates = 1;
err = AudioFileSetProperty(mAudioFile, kAudioFilePropertyDeferSizeUpdates, sizeof(UInt32), &deferSizeUpdates);
if (mConverter != NULL) {
// encoder
// get the magic cookie, if any, from the converter
delete[] mMagicCookie; mMagicCookie = NULL;
mMagicCookieSize = 0;
err = AudioConverterGetPropertyInfo(mConverter, kAudioConverterCompressionMagicCookie, &propertySize, NULL);
// we can get a noErr result and also a propertySize == 0
// -- if the file format does support magic cookies, but this file doesn't have one.
if (err == noErr && propertySize > 0) {
mMagicCookie = new Byte[propertySize];
XThrowIfError(AudioConverterGetProperty(mConverter, kAudioConverterCompressionMagicCookie, &propertySize, mMagicCookie), "get audio converter's magic cookie");
mMagicCookieSize = propertySize; // the converter lies and tell us the wrong size
// now set the magic cookie on the output file
UInt32 willEatTheCookie = false;
// the converter wants to give us one; will the file take it?
err = AudioFileGetPropertyInfo(mAudioFile, kAudioFilePropertyMagicCookieData,
NULL, &willEatTheCookie);
if (err == noErr && willEatTheCookie) {
#if VERBOSE_CONVERTER
printf("Setting cookie on encoded file\n");
#endif
XThrowIfError(AudioFileSetProperty(mAudioFile, kAudioFilePropertyMagicCookieData, mMagicCookieSize, mMagicCookie), "set audio file's magic cookie");
}
}
// get maximum packet size
propertySize = sizeof(UInt32);
XThrowIfError(AudioConverterGetProperty(mConverter, kAudioConverterPropertyMaximumOutputPacketSize, &propertySize, &mFileMaxPacketSize), "get audio converter's maximum output packet size");
AllocateBuffers(true /* okToFail */);
} else {
InitFileMaxPacketSize();
}
if (mFileChannelLayout.IsValid() && mFileChannelLayout.NumberChannels() > 2) {
// don't bother tagging mono/stereo files
UInt32 isWritable;
err = AudioFileGetPropertyInfo(mAudioFile, kAudioFilePropertyChannelLayout, NULL, &isWritable);
if (!err && isWritable) {
#if VERBOSE_CHANNELMAP
printf("writing file's channel layout: %s\n", CAChannelLayouts::ConstantToString(mFileChannelLayout.Tag()));
#endif
err = AudioFileSetProperty(mAudioFile, kAudioFilePropertyChannelLayout,
mFileChannelLayout.Size(), &mFileChannelLayout.Layout());
if (err)
CAXException::Warning("could not set the file's channel layout", err);
} else {
#if VERBOSE_CHANNELMAP
printf("file won't accept a channel layout (write)\n");
#endif
}
}
UpdateClientMaxPacketSize(); // also sets mFrame0Offset
mPacketMark = 0;
mFrameMark = 0;
}
bool load(CFURLRef url) {
OSStatus status;
memset(&aqData,0,sizeof(aqData));
timeBase = 0;
status = AudioFileOpenURL(url,kAudioFileReadPermission,0,&aqData.mAudioFile);
checkStatus(status);
if( status != noErr ) return false;
UInt32 dataFormatSize = sizeof (aqData.mDataFormat); // 1
status = AudioFileGetProperty ( // 2
aqData.mAudioFile, // 3
kAudioFilePropertyDataFormat, // 4
&dataFormatSize, // 5
&aqData.mDataFormat // 6
);
checkStatus(status);
status = AudioQueueNewOutput ( // 1
&aqData.mDataFormat, // 2
HandleOutputBuffer, // 3
&aqData, // 4
CFRunLoopGetCurrent (), // 5
kCFRunLoopCommonModes, // 6
0, // 7
&aqData.mQueue // 8
);
checkStatus(status);
UInt32 maxPacketSize;
UInt32 propertySize = sizeof (maxPacketSize);
status = AudioFileGetProperty ( // 1
aqData.mAudioFile, // 2
kAudioFilePropertyPacketSizeUpperBound, // 3
&propertySize, // 4
&maxPacketSize // 5
);
checkStatus(status);
deriveBufferSize ( // 6
aqData.mDataFormat, // 7
maxPacketSize, // 8
0.5, // 9
&aqData.bufferByteSize, // 10
&aqData.mNumPacketsToRead // 11
);
bool isFormatVBR = ( // 1
aqData.mDataFormat.mBytesPerPacket == 0 ||
aqData.mDataFormat.mFramesPerPacket == 0
);
if (isFormatVBR) { // 2
aqData.mPacketDescs =
(AudioStreamPacketDescription*) malloc (
aqData.mNumPacketsToRead * sizeof (AudioStreamPacketDescription)
);
} else { // 3
aqData.mPacketDescs = NULL;
}
UInt32 cookieSize = sizeof (UInt32); // 1
OSStatus couldNotGetProperty = // 2
AudioFileGetPropertyInfo ( // 3
aqData.mAudioFile, // 4
kAudioFilePropertyMagicCookieData, // 5
&cookieSize, // 6
NULL // 7
);
// checkStatus(couldNotGetProperty);
if (!couldNotGetProperty && cookieSize) { // 8
char* magicCookie =
(char *) malloc (cookieSize);
status = AudioFileGetProperty ( // 9
aqData.mAudioFile, // 10
kAudioFilePropertyMagicCookieData, // 11
&cookieSize, // 12
magicCookie // 13
);
checkStatus(status);
status = AudioQueueSetProperty ( // 14
aqData.mQueue, // 15
kAudioQueueProperty_MagicCookie, // 16
magicCookie, // 17
cookieSize // 18
);
checkStatus(status);
free (magicCookie); // 19
}
return true;
}
bool AudioQueueStreamOut::Open(const char *FileName)
{
delete [] mInfo.mPacketDescs;
mInfo.mPacketDescs = NULL;
m_totalFrames = 0;
mInfo.m_SeekToPacket = -1;
try {
CFURLRef sndFile = CFURLCreateFromFileSystemRepresentation (NULL, (const UInt8 *)FileName, strlen(FileName), false);
if (!sndFile) return false;
OSStatus result = AudioFileOpenURL (sndFile, 0x1/*fsRdPerm*/, 0/*inFileTypeHint*/, &mInfo.mAudioFile);
CFRelease (sndFile);
UInt32 size = sizeof(mInfo.mDataFormat);
XThrowIfError(AudioFileGetProperty(mInfo.mAudioFile,
kAudioFilePropertyDataFormat, &size, &mInfo.mDataFormat), "couldn't get file's data format");
printf ("File format: "); mInfo.mDataFormat.Print();
XThrowIfError(AudioQueueNewOutput(&mInfo.mDataFormat, AudioQueueStreamOut::AQBufferCallback, this,
NULL, kCFRunLoopCommonModes, 0, &mInfo.mQueue), "AudioQueueNew failed");
UInt32 bufferByteSize;
// we need to calculate how many packets we read at a time, and how big a buffer we need
// we base this on the size of the packets in the file and an approximate duration for each buffer
{
bool isFormatVBR = (mInfo.mDataFormat.mBytesPerPacket == 0 || mInfo.mDataFormat.mFramesPerPacket == 0);
// first check to see what the max size of a packet is - if it is bigger
// than our allocation default size, that needs to become larger
UInt32 maxPacketSize;
size = sizeof(maxPacketSize);
XThrowIfError(AudioFileGetProperty(mInfo.mAudioFile,
kAudioFilePropertyPacketSizeUpperBound, &size, &maxPacketSize), "couldn't get file's max packet size");
// adjust buffer size to represent about a half second of audio based on this format
CalculateBytesForTime (mInfo.mDataFormat, maxPacketSize, 0.5/*seconds*/, &bufferByteSize, &mInfo.mNumPacketsToRead);
if (isFormatVBR)
mInfo.mPacketDescs = new AudioStreamPacketDescription [mInfo.mNumPacketsToRead];
else
mInfo.mPacketDescs = NULL; // we don't provide packet descriptions for constant bit rate formats (like linear PCM)
printf ("Buffer Byte Size: %d, Num Packets to Read: %d\n", (int)bufferByteSize, (int)mInfo.mNumPacketsToRead);
}
// (2) If the file has a cookie, we should get it and set it on the AQ
size = sizeof(UInt32);
result = AudioFileGetPropertyInfo (mInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size) {
char* cookie = new char [size];
XThrowIfError (AudioFileGetProperty (mInfo.mAudioFile, kAudioFilePropertyMagicCookieData, &size, cookie), "get cookie from file");
XThrowIfError (AudioQueueSetProperty(mInfo.mQueue, kAudioQueueProperty_MagicCookie, cookie, size), "set cookie on queue");
delete [] cookie;
}
// prime the queue with some data before starting
mInfo.mDone = false;
mInfo.mCurrentPacket = 0;
for (UInt32 i = 0; i < sizeof(mInfo.mBuffers)/sizeof(mInfo.mBuffers[0]); ++i) {
XThrowIfError(AudioQueueAllocateBuffer(mInfo.mQueue, bufferByteSize, &mInfo.mBuffers[i]), "AudioQueueAllocateBuffer failed");
AQBufferCallback (this, mInfo.mQueue, mInfo.mBuffers[i]);
if (mInfo.mDone) break;
}
return IMUSIKStreamOutDefault::Create(NULL);
}
catch (CAXException e) {
char buf[256];
fprintf(stderr, "Error: %s (%s)\n", e.mOperation, e.FormatError(buf));
}
return false;
}
