int main (int argc, const char * argv[])
{
char* filePath = NULL;
bool overwrite = false;
ComponentDescription compDesc = {0, 0, 0, 0, 0};
AudioFileID inputFileID = 0;
AudioFileID outputFileID = 0;
CAStreamBasicDescription desc;
AudioUnit theUnit = 0;
setbuf (stdout, NULL);
for (int i = 1; i < argc; ++i)
{
if (strcmp (argv[i], "-u") == 0) {
if ( (i + 3) < argc ) {
compDesc.componentType = str2OSType (argv[i + 1]);
compDesc.componentSubType = str2OSType (argv[i + 2]);
compDesc.componentManufacturer = str2OSType (argv[i + 3]);
Component comp = FindNextComponent (NULL, &compDesc);
if (comp == NULL)
break;
OpenAComponent (comp, &theUnit);
i += 3;
} else {
printf ("Which Component:\n%s", usageStr);
return -1;
}
}
else if (strcmp (argv[i], "-f") == 0) {
filePath = const_cast<char*>(argv[++i]);
printf ("Input File:%s\n", filePath);
}
else if (strcmp (argv[i], "-o") == 0) {
overwrite = true;
}
else {
printf ("%s\n", usageStr);
return -1;
}
}
if (compDesc.componentType == 0) {
printf ("Must specify AU:\n%s\n", usageStr);
return -1;
}
if (theUnit == 0) {
printf ("Can't find specified unit\n");
return -1;
}
if (filePath == NULL) {
printf ("Must specify file to process:\n%s\n", usageStr);
return -1;
}
OSStatus result = 0;
if (result = InputFile (filePath, inputFileID)) {
printf ("Result = %ld, parsing input file, exit...\n", result);
return result;
}
UInt32 fileType;
UInt32 size = sizeof (fileType);
result = AudioFileGetProperty (inputFileID, kAudioFilePropertyFileFormat, &size, &fileType);
if (result) {
printf ("Error getting File Type of input file:%ld, exit...\n", result);
return result;
}
size = sizeof (desc);
result = AudioFileGetProperty (inputFileID, kAudioFilePropertyDataFormat, &size, &desc);
if (result) {
printf ("Error getting File Format of input file:%ld, exit...\n", result);
return result;
}
if (desc.IsPCM() == false) {
printf ("Only processing linear PCM file types and data:\n");
desc.Print();
return -1;
}
result = OutputFile (filePath, fileType, compDesc.componentSubType, overwrite, desc, outputFileID);
if (result) {
printf ("Error creating output file:%ld, exit...\n", result);
return result;
}
// at this point we're ready to process
return Process (theUnit, compDesc, inputFileID, desc, outputFileID);
}
void CAAudioFileConverter::GenerateOutputFileName(const char *inputFilePath,
const CAStreamBasicDescription &inputFormat,
const CAStreamBasicDescription &outputFormat, OSType outputFileType,
char *outName)
{
struct stat sb;
char inputDir[256];
char inputBasename[256];
strcpy(inputDir, dirname(inputFilePath));
const char *infname = basename(inputFilePath);
const char *inext = strrchr(infname, '.');
if (inext == NULL) strcpy(inputBasename, infname);
else {
int n;
memcpy(inputBasename, infname, n = inext - infname);
inputBasename[n] = '\0';
}
CFArrayRef exts;
UInt32 propSize = sizeof(exts);
XThrowIfError(AudioFileGetGlobalInfo(kAudioFileGlobalInfo_ExtensionsForType,
sizeof(OSType), &outputFileType, &propSize, &exts), "generate output file name");
char outputExt[32];
CFStringRef cfext = (CFStringRef)CFArrayGetValueAtIndex(exts, 0);
CFStringGetCString(cfext, outputExt, sizeof(outputExt), kCFStringEncodingUTF8);
CFRelease(exts);
// 1. olddir + oldname + newext
sprintf(outName, "%s/%s.%s", inputDir, inputBasename, outputExt);
#if TARGET_OS_MAC
if (lstat(outName, &sb)) return;
#else
if (stat(outName, &sb)) return;
#endif
if (outputFormat.IsPCM()) {
// If sample rate changed:
// 2. olddir + oldname + "-SR" + newext
if (inputFormat.mSampleRate != outputFormat.mSampleRate && outputFormat.mSampleRate != 0.) {
sprintf(outName, "%s/%s-%.0fk.%s", inputDir, inputBasename, outputFormat.mSampleRate/1000., outputExt);
#if TARGET_OS_MAC
if (lstat(outName, &sb)) return;
#else
if (stat(outName, &sb)) return;
#endif
}
// If bit depth changed:
// 3. olddir + oldname + "-bit" + newext
if (inputFormat.mBitsPerChannel != outputFormat.mBitsPerChannel) {
sprintf(outName, "%s/%s-%ldbit.%s", inputDir, inputBasename, outputFormat.mBitsPerChannel, outputExt);
#if TARGET_OS_MAC
if (lstat(outName, &sb)) return;
#else
if (stat(outName, &sb)) return;
#endif
}
}
// maybe more with channels/layouts? $$$
// now just append digits
for (int i = 1; ; ++i) {
sprintf(outName, "%s/%s-%d.%s", inputDir, inputBasename, i, outputExt);
#if TARGET_OS_MAC
if (lstat(outName, &sb)) return;
#else
if (stat(outName, &sb)) return;
#endif
}
}
// _______________________________________________________________________________________
//
void CAAudioFile::SetClientFormat(const CAStreamBasicDescription &dataFormat, const CAAudioChannelLayout *layout)
{
LOG_FUNCTION("CAAudioFile::SetClientFormat", "%p", this);
XThrowIf(!dataFormat.IsPCM(), kExtAudioFileError_NonPCMClientFormat, "non-PCM client format on audio file");
bool dataFormatChanging = (mClientDataFormat.mFormatID == 0 || mClientDataFormat != dataFormat);
if (dataFormatChanging) {
CloseConverter();
if (mWriteBufferList) {
delete mWriteBufferList;
mWriteBufferList = NULL;
}
mClientDataFormat = dataFormat;
}
if (layout && layout->IsValid()) {
XThrowIf(layout->NumberChannels() != mClientDataFormat.NumberChannels(), kExtAudioFileError_InvalidChannelMap, "inappropriate channel map");
mClientChannelLayout = *layout;
}
bool differentLayouts;
if (mClientChannelLayout.IsValid()) {
if (mFileChannelLayout.IsValid()) {
differentLayouts = mClientChannelLayout.Tag() != mFileChannelLayout.Tag();
#if VERBOSE_CHANNELMAP
printf("two valid layouts, %s\n", differentLayouts ? "different" : "same");
#endif
} else {
differentLayouts = false;
#if VERBOSE_CHANNELMAP
printf("valid client layout, unknown file layout\n");
#endif
}
} else {
differentLayouts = false;
#if VERBOSE_CHANNELMAP
if (mFileChannelLayout.IsValid())
printf("valid file layout, unknown client layout\n");
else
printf("two invalid layouts\n");
#endif
}
if (mClientDataFormat != mFileDataFormat || differentLayouts) {
// We need an AudioConverter.
if (mMode == kReading) {
// file -> client (decode)
//mFileDataFormat.PrintFormat( stdout, "", "File: ");
//mClientDataFormat.PrintFormat(stdout, "", "Client: ");
if (mConverter == NULL)
XThrowIfError(AudioConverterNew(&mFileDataFormat, &mClientDataFormat, &mConverter),
"create audio converter");
#if VERBOSE_CONVERTER
printf("CAAudioFile %p -- created converter\n", this);
CAShow(mConverter);
#endif
// set the magic cookie, if any (for decode)
if (mMagicCookie)
SetConverterProperty(kAudioConverterDecompressionMagicCookie, mMagicCookieSize, mMagicCookie, mFileDataFormat.IsPCM());
// we get cookies from some AIFF's but the converter barfs on them,
// so we set canFail to true for PCM
SetConverterChannelLayout(false, mFileChannelLayout);
SetConverterChannelLayout(true, mClientChannelLayout);
// propagate leading/trailing frame counts
if (mFileDataFormat.mBitsPerChannel == 0) {
UInt32 propertySize;
OSStatus err;
AudioFilePacketTableInfo pti;
propertySize = sizeof(pti);
err = AudioFileGetProperty(mAudioFile, kAudioFilePropertyPacketTableInfo, &propertySize, &pti);
if (err == noErr && (pti.mPrimingFrames > 0 || pti.mRemainderFrames > 0)) {
AudioConverterPrimeInfo primeInfo;
primeInfo.leadingFrames = pti.mPrimingFrames;
primeInfo.trailingFrames = pti.mRemainderFrames;
/* ignore any error. better to play it at all than not. */
/*err = */AudioConverterSetProperty(mConverter, kAudioConverterPrimeInfo, sizeof(primeInfo), &primeInfo);
//XThrowIfError(err, "couldn't set prime info on converter");
}
}
} else if (mMode == kPreparingToCreate || mMode == kPreparingToWrite) {
// client -> file (encode)
if (mConverter == NULL)
XThrowIfError(AudioConverterNew(&mClientDataFormat, &mFileDataFormat, &mConverter), "create audio converter");
mWriteBufferList = CABufferList::New("", mClientDataFormat);
SetConverterChannelLayout(false, mClientChannelLayout);
SetConverterChannelLayout(true, mFileChannelLayout);
if (mMode == kPreparingToWrite)
FileFormatChanged();
} else
XThrowIfError(kExtAudioFileError_InvalidOperationOrder, "audio file format not yet known");
}
UpdateClientMaxPacketSize();
}
void CAAudioFileConverter::ConvertFile(const ConversionParameters &_params)
{
FSRef destFSRef;
UInt32 propertySize;
CAStreamBasicDescription destFormat;
CAAudioChannelLayout origSrcFileLayout, srcFileLayout, destFileLayout;
bool openedSourceFile = false, createdOutputFile = false;
mParams = _params;
mReadBuffer = NULL;
mReadPtrs = NULL;
CABufferList *writeBuffer = NULL;
CABufferList *writePtrs = NULL;
PrepareConversion();
try {
if (TaggedDecodingFromCAF())
ReadCAFInfo();
OpenInputFile();
openedSourceFile = true;
// get input file's format
const CAStreamBasicDescription &srcFormat = mSrcFile.GetFileDataFormat();
if (mParams.flags & kOpt_Verbose) {
printf("Input file: %s, %qd frames\n", mParams.input.filePath ? basename(mParams.input.filePath) : "?",
mSrcFile.GetNumberFrames());
}
mSrcFormat = srcFormat;
bool encoding = !destFormat.IsPCM();
bool decoding = !srcFormat.IsPCM();
// prepare output file's format
destFormat = mParams.output.dataFormat;
if (!encoding && destFormat.mSampleRate == 0.)
// on encode, it's OK to have a 0 sample rate; ExtAudioFile will get the SR from the converter and set it on the file.
// on decode or PCM->PCM, a sample rate of 0 is interpreted as using the source sample rate
destFormat.mSampleRate = srcFormat.mSampleRate;
// source channel layout
srcFileLayout = mSrcFile.GetFileChannelLayout();
origSrcFileLayout = srcFileLayout;
if (mParams.input.channelLayoutTag != 0) {
XThrowIf(AudioChannelLayoutTag_GetNumberOfChannels(mParams.input.channelLayoutTag)
!= srcFormat.mChannelsPerFrame, -1, "input channel layout has wrong number of channels for file");
srcFileLayout = CAAudioChannelLayout(mParams.input.channelLayoutTag);
mSrcFile.SetFileChannelLayout(srcFileLayout);
}
// destination channel layout
int outChannels = mParams.output.channels;
if (mParams.output.channelLayoutTag != 0) {
// use the one specified by caller, if any
destFileLayout = CAAudioChannelLayout(mParams.output.channelLayoutTag);
} else if (srcFileLayout.IsValid()) {
// otherwise, assume the same as the source, if any
destFileLayout = srcFileLayout;
}
if (destFileLayout.IsValid()) {
// the output channel layout specifies the number of output channels
if (outChannels != -1)
XThrowIf((unsigned)outChannels != destFileLayout.NumberChannels(), -1,
"output channel layout has wrong number of channels");
else
outChannels = destFileLayout.NumberChannels();
}
if (!(mParams.flags & kOpt_NoSanitizeOutputFormat)) {
// adjust the output format's channels; output.channels overrides the channels
if (outChannels == -1)
outChannels = srcFormat.mChannelsPerFrame;
if (outChannels > 0) {
destFormat.mChannelsPerFrame = outChannels;
destFormat.mBytesPerPacket *= outChannels;
destFormat.mBytesPerFrame *= outChannels;
}
// use AudioFormat API to clean up the output format
propertySize = sizeof(AudioStreamBasicDescription);
XThrowIfError(AudioFormatGetProperty(kAudioFormatProperty_FormatInfo, 0, NULL, &propertySize, &destFormat),
"get destination format info");
}
OpenOutputFile(srcFormat, destFormat, destFSRef, destFileLayout);
createdOutputFile = true;
mDestFormat = destFormat;
// set up client formats
CAStreamBasicDescription srcClientFormat, destClientFormat;
{
CAAudioChannelLayout srcClientLayout, destClientLayout;
if (encoding) {
if (decoding) {
// transcoding
// XThrowIf(encoding && decoding, -1, "transcoding not currently supported");
if (srcFormat.mChannelsPerFrame > 2 || destFormat.mChannelsPerFrame > 2)
CAXException::Warning("Transcoding multichannel audio may not handle channel layouts correctly", 0);
srcClientFormat.SetCanonical(std::min(srcFormat.mChannelsPerFrame, destFormat.mChannelsPerFrame), true);
srcClientFormat.mSampleRate = std::max(srcFormat.mSampleRate, destFormat.mSampleRate);
mSrcFile.SetClientFormat(srcClientFormat, NULL);
destClientFormat = srcClientFormat;
} else {
// encoding
srcClientFormat = srcFormat;
destClientFormat = srcFormat;
}
// by here, destClientFormat will have a valid sample rate
destClientLayout = srcFileLayout.IsValid() ? srcFileLayout : destFileLayout;
mDestFile.SetClientFormat(destClientFormat, &destClientLayout);
} else {
// decoding or PCM->PCM
if (destFormat.mSampleRate == 0.)
destFormat.mSampleRate = srcFormat.mSampleRate;
destClientFormat = destFormat;
srcClientFormat = destFormat;
srcClientLayout = destFileLayout;
mSrcFile.SetClientFormat(srcClientFormat, &srcClientLayout);
}
}
XThrowIf(srcClientFormat.mBytesPerPacket == 0, -1, "source client format not PCM");
XThrowIf(destClientFormat.mBytesPerPacket == 0, -1, "dest client format not PCM");
if (encoding) {
// set the bitrate
if (mParams.output.bitRate != -1) {
if (mParams.flags & kOpt_Verbose)
printf("bitrate = %ld\n", mParams.output.bitRate);
mDestFile.SetConverterProperty(kAudioConverterEncodeBitRate, sizeof(UInt32), &mParams.output.bitRate);
}
// set the codec quality
if (mParams.output.codecQuality != -1) {
if (mParams.flags & kOpt_Verbose)
printf("codec quality = %ld\n", mParams.output.codecQuality);
mDestFile.SetConverterProperty(kAudioConverterCodecQuality, sizeof(UInt32), &mParams.output.codecQuality);
}
// set the bitrate strategy -- called bitrate format in the codecs since it had already shipped
if (mParams.output.strategy != -1) {
if (mParams.flags & kOpt_Verbose)
printf("strategy = %ld\n", mParams.output.strategy);
mDestFile.SetConverterProperty(kAudioCodecBitRateFormat, sizeof(UInt32), &mParams.output.strategy);
}
}
// set the SRC quality
if (mParams.output.srcQuality != -1) {
if (srcFormat.mSampleRate != 0. && destFormat.mSampleRate != 0. && srcFormat.mSampleRate != destFormat.mSampleRate) {
if (mParams.flags & kOpt_Verbose)
printf("SRC quality = %ld\n", mParams.output.srcQuality);
if (encoding)
mDestFile.SetConverterProperty(kAudioConverterSampleRateConverterQuality, sizeof(UInt32), &mParams.output.srcQuality);
else
mSrcFile.SetConverterProperty(kAudioConverterSampleRateConverterQuality, sizeof(UInt32), &mParams.output.srcQuality);
}
}
if (decoding) {
if (mParams.output.primeMethod != -1)
mSrcFile.SetConverterProperty(kAudioConverterPrimeMethod, sizeof(UInt32), &mParams.output.primeMethod);
}
PrintFormats(&origSrcFileLayout);
// prepare I/O buffers
UInt32 bytesToRead = 0x10000;
UInt32 framesToRead = bytesToRead; // OK, ReadPackets will limit as appropriate
ComputeReadSize(srcFormat, destFormat, bytesToRead, framesToRead);
// const SInt64 totalFrames = mSrcFile.GetNumberFrames();
//#warning "GetNumberFrames() can be prohibitively slow for some formats"
mReadBuffer = CABufferList::New("readbuf", srcClientFormat);
mReadBuffer->AllocateBuffers(bytesToRead);
mReadPtrs = CABufferList::New("readptrs", srcClientFormat);
BeginConversion();
while (true) {
//XThrowIf(Progress(mSrcFile.Tell(), totalFrames), userCanceledErr, "user stopped");
// this was commented out for awhile -- performance? make it optional?
UInt32 nFrames = framesToRead;
mReadPtrs->SetFrom(mReadBuffer);
AudioBufferList *readbuf = &mReadPtrs->GetModifiableBufferList();
mSrcFile.Read(nFrames, readbuf);
//printf("read %ld of %ld frames\n", nFrames, framesToRead);
if (nFrames == 0)
break;
mDestFile.Write(nFrames, readbuf);
if (ShouldTerminateConversion())
break;
}
if (decoding) {
// fix up the destination file's length if necessary and possible
SInt64 nframes = mSrcFile.GetNumberFrames();
if (nframes != 0) {
// only shorten, don't try to lengthen
nframes = SInt64(ceil(nframes * destFormat.mSampleRate / srcFormat.mSampleRate));
if (nframes < mDestFile.GetNumberFrames()) {
mDestFile.SetNumberFrames(nframes);
}
}
}
EndConversion();
}
catch (...) {
delete mReadBuffer;
delete mReadPtrs;
delete writeBuffer;
delete writePtrs;
if (!createdOutputFile)
PrintFormats(&origSrcFileLayout);
try { mSrcFile.Close(); } catch (...) { }
try { mDestFile.Close(); } catch (...) { }
if (createdOutputFile)
unlink(mOutName);
throw;
}
delete mReadBuffer;
delete mReadPtrs;
delete writeBuffer;
delete writePtrs;
mSrcFile.Close();
mDestFile.Close();
if (TaggedEncodingToCAF())
WriteCAFInfo();
if (mParams.flags & kOpt_Verbose) {
// must close to flush encoder; GetNumberFrames() not necessarily valid until afterwards but then
// the file is closed
CAAudioFile temp;
FSRef destFSRef;
if (FSPathMakeRef((UInt8 *)mOutName, &destFSRef, NULL) == noErr) {
temp.Open(destFSRef);
printf("Output file: %s, %qd frames\n", basename(mOutName), temp.GetNumberFrames());
}
}
}
int main(int argc, const char *argv[])
{
const char *recordFileName = NULL;
// set up defaults
AudioFileTypeID filetype = kAudioFileAIFFType;
bool gotOutDataFormat = false;
CAStreamBasicDescription dataFormat;
dataFormat.mSampleRate = 44100.; // later get this from the hardware
dataFormat.mFormatID = kAudioFormatLinearPCM;
dataFormat.mFormatFlags = kAudioFormatFlagIsBigEndian | kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
dataFormat.mFramesPerPacket = 1;
dataFormat.mChannelsPerFrame = 2;
dataFormat.mBitsPerChannel = 16;
dataFormat.mBytesPerPacket = dataFormat.mBytesPerFrame = 4;
SInt32 bitrate = -1, quality = -1;
// parse arguments
for (int i = 1; i < argc; ++i) {
const char *arg = argv[i];
if (arg[0] != '-') {
if (recordFileName != NULL) {
fprintf(stderr, "may only specify one record file\n");
usage();
}
recordFileName = arg;
} else {
arg += 1;
if (arg[0] == 'f' || !strcmp(arg, "-file")) {
if (++i == argc) MissingArgument();
filetype = Parse4CharCode(argv[i], "-f | --file");
} else if (arg[0] == 'd' || !strcmp(arg, "-data")) {
if (++i == argc) MissingArgument();
if (!ParseStreamDescription(argv[i], dataFormat))
usage();
gotOutDataFormat = true;
} else if (arg[0] == 'b' || !strcmp(arg, "-bitrate")) {
if (++i == argc) MissingArgument();
bitrate = ParseInt(argv[i], "-b | --bitrate");
} else if (arg[0] == 'q' || !strcmp(arg, "-quality")) {
if (++i == argc) MissingArgument();
quality = ParseInt(argv[i], "-q | --quality");
} else {
fprintf(stderr, "unknown argument: %s\n\n", arg - 1);
usage();
}
}
}
if (recordFileName == NULL)
usage();
if (!gotOutDataFormat) {
if (filetype == 0) {
fprintf(stderr, "no output file or data format specified\n\n");
usage();
}
if (!CAAudioFileFormats::Instance()->InferDataFormatFromFileFormat(filetype, dataFormat)) {
fprintf(stderr, "Couldn't infer data format from file format\n\n");
usage();
}
} else if (filetype == 0) {
if (!CAAudioFileFormats::Instance()->InferFileFormatFromDataFormat(dataFormat, filetype)) {
dataFormat.PrintFormat(stderr, "", "Couldn't infer file format from data format");
usage();
}
}
unlink(recordFileName);
if (dataFormat.IsPCM())
dataFormat.ChangeNumberChannels(2, true);
else
dataFormat.mChannelsPerFrame = 2;
try {
const int kNumberBuffers = 3;
const unsigned kBufferSize = 0x8000;
CAAudioFileRecorder recorder(kNumberBuffers, kBufferSize);
FSRef parentDir;
CFStringRef filename;
XThrowIfError(PosixPathToParentFSRefAndName(recordFileName, parentDir, filename), "couldn't find output directory");
recorder.SetFile(parentDir, filename, filetype, dataFormat, NULL);
CAAudioFile &recfile = recorder.GetFile();
if (bitrate >= 0)
recfile.SetConverterProperty(kAudioConverterEncodeBitRate, sizeof(UInt32), &bitrate);
if (quality >= 0)
recfile.SetConverterProperty(kAudioConverterCodecQuality, sizeof(UInt32), &quality);
Record(recorder);
}
catch (CAXException &e) {
char buf[256];
fprintf(stderr, "Error: %s (%s)\n", e.mOperation, CAXException::FormatError(buf, e.mError));
return 1;
}
catch (...) {
fprintf(stderr, "An unknown error occurred\n");
return 1;
}
return 0;
}
