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Added unfinished audio code, switching machines

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This commit is contained in:
Matthias Neeracher 2006-11-17 04:03:14 +00:00
parent ff05955b00
commit 26f135cb88
9 changed files with 1775 additions and 14 deletions
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160
Sources/CoreAudioSDK/AUOutputBL.cpp Normal file
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/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
AUOutputBL.h
=============================================================================*/
#include "AUOutputBL.h"
/*
struct AudioBufferList
{
UInt32 mNumberBuffers;
AudioBuffer mBuffers[1];
};
struct AudioBuffer
{
UInt32 mNumberChannels; // number of interleaved channels in the buffer
UInt32 mDataByteSize; // the size of the buffer pointed to by mData
void* mData; // the pointer to the buffer
};
*/
AUOutputBL::AUOutputBL (const CAStreamBasicDescription &inDesc, UInt32 inDefaultNumFrames)
: mFormat (inDesc),
mBufferMemory(NULL),
mBufferList (NULL),
mNumberBuffers (0), // keep this here, so can ensure integrity of ABL
mBufferSize (0),
mFrames(inDefaultNumFrames)
{
mNumberBuffers = mFormat.IsInterleaved() ? 1 : mFormat.NumberChannels();
mBufferList = reinterpret_cast<AudioBufferList*>(new Byte[sizeof(UInt32) + (mNumberBuffers * sizeof(AudioBuffer))]);
}
AUOutputBL::~AUOutputBL()
{
if (mBufferMemory)
delete[] mBufferMemory;
if (mBufferList)
delete [] mBufferList;
}
void AUOutputBL::Prepare (UInt32 inNumFrames, bool inWantNullBufferIfAllocated)
{
UInt32 channelsPerBuffer = mFormat.IsInterleaved() ? mFormat.NumberChannels() : 1;
if (mBufferMemory == NULL || inWantNullBufferIfAllocated)
{
mBufferList->mNumberBuffers = mNumberBuffers;
AudioBuffer *buf = &mBufferList->mBuffers[0];
for (UInt32 i = 0; i < mNumberBuffers; ++i, ++buf) {
buf->mNumberChannels = channelsPerBuffer;
buf->mDataByteSize = mFormat.FramesToBytes (inNumFrames);
buf->mData = NULL;
}
}
else
{
UInt32 nBytes = mFormat.FramesToBytes (inNumFrames);
if ((nBytes * mNumberBuffers) > AllocatedBytes())
throw OSStatus(-10874);//(kAudioUnitErr_TooManyFramesToProcess);
mBufferList->mNumberBuffers = mNumberBuffers;
AudioBuffer *buf = &mBufferList->mBuffers[0];
Byte* p = mBufferMemory;
for (UInt32 i = 0; i < mNumberBuffers; ++i, ++buf) {
buf->mNumberChannels = channelsPerBuffer;
buf->mDataByteSize = nBytes;
buf->mData = p;
p += mBufferSize;
}
}
}
void AUOutputBL::Allocate (UInt32 inNumFrames)
{
if (inNumFrames)
{
UInt32 nBytes = mFormat.FramesToBytes (inNumFrames);
if (nBytes <= AllocatedBytes())
return;
// align successive buffers for Altivec and to take alternating
// cache line hits by spacing them by odd multiples of 16
if (mNumberBuffers > 1)
nBytes = (nBytes + (0x10 - (nBytes & 0xF))) | 0x10;
mBufferSize = nBytes;
UInt32 memorySize = mBufferSize * mNumberBuffers;
Byte *newMemory = new Byte[memorySize];
memset(newMemory, 0, memorySize); // make buffer "hot"
Byte *oldMemory = mBufferMemory;
mBufferMemory = newMemory;
delete[] oldMemory;
mFrames = inNumFrames;
}
else
{
if (mBufferMemory) {
delete [] mBufferMemory;
mBufferMemory = NULL;
}
mBufferSize = 0;
mFrames = 0;
}
}
#if DEBUG
void AUOutputBL::Print()
{
printf ("AUOutputBL::Print\n");
mFormat.Print();
printf ("Num Buffers:%d, mFrames:%d, allocatedMemory:%c\n", (int)mBufferList->mNumberBuffers, (int)mFrames, (mBufferMemory != NULL ? 'T' : 'F'));
AudioBuffer *buf = &mBufferList->mBuffers[0];
for (UInt32 i = 0; i < mBufferList->mNumberBuffers; ++i, ++buf)
printf ("\tBuffer:%d, Size:%d, Chans:%d, Buffer:%p\n", (int)i, (int)buf->mDataByteSize, (int)buf->mNumberChannels, buf->mData);
}
#endif

116
Sources/CoreAudioSDK/AUOutputBL.h Normal file
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/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
AUOutputBL.h
=============================================================================*/
#ifndef __AUOutputBL_h__
#define __AUOutputBL_h__
#include "CAStreamBasicDescription.h"
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
#include <CoreServices/CoreServices.h>
#else
#include <AssertMacros.h>
#endif
// ____________________________________________________________________________
//
// AUOutputBL - Simple Buffer List wrapper targetted to use with retrieving AU output
// Works in one of two ways (both adjustable)... Can use it with NULL pointers, or allocate
// memory to receive the data in.
// Before using this with any call to AudioUnitRender, it needs to be Prepared
// as some calls to AudioUnitRender can reset the ABL
class AUOutputBL {
public:
// you CANNOT use one of these - it will crash!
// AUOutputBL ();
// this is the constructor that you use
// it can't be reset once you've constructed it
AUOutputBL (const CAStreamBasicDescription &inDesc, UInt32 inDefaultNumFrames = 512);
~AUOutputBL();
void Prepare ()
{
Prepare (mFrames);
}
// this version can throw if this is an allocted ABL and inNumFrames is > AllocatedFrames()
// you can set the bool to true if you want a NULL buffer list even if allocated
// inNumFrames must be a valid number (will throw if inNumFrames is 0)
void Prepare (UInt32 inNumFrames, bool inWantNullBufferIfAllocated = false);
AudioBufferList* ABL() { return mBufferList; }
// You only need to call this if you want to allocate a buffer list
// if you want an empty buffer list, just call Prepare()
// if you want to dispose previously allocted memory, pass in 0
// then you either have an empty buffer list, or you can re-allocate
// Memory is kept around if an Allocation request is less than what is currently allocated
void Allocate (UInt32 inNumberFrames);
UInt32 AllocatedFrames() const { return mFrames; }
const CAStreamBasicDescription& GetFormat() const { return mFormat; }
#if DEBUG
void Print();
#endif
private:
UInt32 AllocatedBytes () const { return (mBufferSize * mNumberBuffers); }
CAStreamBasicDescription mFormat;
Byte* mBufferMemory;
AudioBufferList* mBufferList;
UInt32 mNumberBuffers;
UInt32 mBufferSize;
UInt32 mFrames;
// don't want to copy these.. can if you want, but more code to write!
AUOutputBL () {}
AUOutputBL (const AUOutputBL &c) {}
AUOutputBL& operator= (const AUOutputBL& c) { return *this; }
};
#endif // __AUOutputBL_h__

393
Sources/CoreAudioSDK/CAAudioFileFormats.cpp Normal file
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/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
CAAudioFileFormats.cpp
=============================================================================*/
#include "CAAudioFileFormats.h"
#include <algorithm>
#include <ctype.h>
CAAudioFileFormats *CAAudioFileFormats::sInstance = NULL;
CAAudioFileFormats *CAAudioFileFormats::Instance()
{
if (sInstance == NULL)
sInstance = new CAAudioFileFormats;
return sInstance;
}
/*
class CompareFileFormatNames {
public:
bool operator() (const CAAudioFileFormats::FileFormatInfo &a, const CAAudioFileFormats::FileFormatInfo &b)
{
return CFStringCompare(a.mFileTypeName, b.mFileTypeName,
kCFCompareCaseInsensitive | kCFCompareLocalized) == kCFCompareLessThan;
}
};*/
static int CompareFileFormatNames(const void *va, const void *vb)
{
CAAudioFileFormats::FileFormatInfo *a = (CAAudioFileFormats::FileFormatInfo *)va,
*b = (CAAudioFileFormats::FileFormatInfo *)vb;
return CFStringCompare(a->mFileTypeName, b->mFileTypeName,
kCFCompareCaseInsensitive | kCFCompareLocalized);
}
CAAudioFileFormats::CAAudioFileFormats() :
mNumFileFormats(0), mFileFormats(NULL)
{
OSStatus err;
UInt32 size;
UInt32 *fileTypes = NULL, *writableFormats = NULL, *readableFormats = NULL;
int nWritableFormats, nReadableFormats;
// get all file types
err = AudioFileGetGlobalInfoSize(kAudioFileGlobalInfo_WritableTypes, 0, NULL, &size);
if (err != noErr) goto bail;
mNumFileFormats = size / sizeof(UInt32);
mFileFormats = new FileFormatInfo[mNumFileFormats];
fileTypes = new UInt32[mNumFileFormats];
err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_WritableTypes, 0, NULL, &size, fileTypes);
if (err != noErr) goto bail;
// get all writable formats
err = AudioFormatGetPropertyInfo(kAudioFormatProperty_EncodeFormatIDs, 0, NULL, &size);
if (err != noErr) goto bail;
nWritableFormats = size / sizeof(UInt32);
writableFormats = new UInt32[nWritableFormats];
err = AudioFormatGetProperty(kAudioFormatProperty_EncodeFormatIDs, 0, NULL, &size, writableFormats);
if (err != noErr) goto bail;
// get all readable formats
err = AudioFormatGetPropertyInfo(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size);
if (err != noErr) goto bail;
nReadableFormats = size / sizeof(UInt32);
readableFormats = new UInt32[nReadableFormats];
err = AudioFormatGetProperty(kAudioFormatProperty_DecodeFormatIDs, 0, NULL, &size, readableFormats);
if (err != noErr) goto bail;
// get info for each file type
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
OSType filetype = fileTypes[i];
ffi->mFileTypeID = filetype;
// file type name
ffi->mFileTypeName = NULL;
size = sizeof(CFStringRef);
err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_FileTypeName, sizeof(UInt32), &filetype, &size, &ffi->mFileTypeName);
if (ffi->mFileTypeName)
CFRetain(ffi->mFileTypeName);
// file extensions
size = sizeof(CFArrayRef);
err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_ExtensionsForType,
sizeof(OSType), &filetype, &size, &ffi->mExtensions);
if (err)
ffi->mExtensions = NULL;
// file data formats
ffi->mNumDataFormats = 0;
ffi->mDataFormats = NULL;
err = AudioFileGetGlobalInfoSize(kAudioFileGlobalInfo_AvailableFormatIDs,
sizeof(UInt32), &filetype, &size);
if (err == noErr) {
ffi->mNumDataFormats = size / sizeof(OSType);
OSType *formatIDs = new OSType[ffi->mNumDataFormats];
err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_AvailableFormatIDs,
sizeof(UInt32), &filetype, &size, formatIDs);
if (err == noErr) {
ffi->mDataFormats = new DataFormatInfo[ffi->mNumDataFormats];
for (int j = 0; j < ffi->mNumDataFormats; ++j) {
int k;
bool anyBigEndian = false, anyLittleEndian = false;
DataFormatInfo *dfi = &ffi->mDataFormats[j];
dfi->mFormatID = formatIDs[j];
dfi->mReadable = (dfi->mFormatID == kAudioFormatLinearPCM);
dfi->mWritable = (dfi->mFormatID == kAudioFormatLinearPCM);
for (k = 0; k < nReadableFormats; ++k)
if (readableFormats[k] == dfi->mFormatID) {
dfi->mReadable = true;
break;
}
for (k = 0; k < nWritableFormats; ++k)
if (writableFormats[k] == dfi->mFormatID) {
dfi->mWritable = true;
break;
}
dfi->mNumVariants = 0;
AudioFileTypeAndFormatID tf = { filetype, dfi->mFormatID };
err = AudioFileGetGlobalInfoSize(kAudioFileGlobalInfo_AvailableStreamDescriptionsForFormat,
sizeof(AudioFileTypeAndFormatID), &tf, &size);
if (err == noErr) {
dfi->mNumVariants = size / sizeof(AudioStreamBasicDescription);
dfi->mVariants = new AudioStreamBasicDescription[dfi->mNumVariants];
err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_AvailableStreamDescriptionsForFormat,
sizeof(AudioFileTypeAndFormatID), &tf, &size, dfi->mVariants);
if (err) {
dfi->mNumVariants = 0;
delete[] dfi->mVariants;
dfi->mVariants = NULL;
} else {
for (k = 0; k < dfi->mNumVariants; ++k) {
AudioStreamBasicDescription *desc = &dfi->mVariants[k];
if (desc->mBitsPerChannel > 8) {
if (desc->mFormatFlags & kAudioFormatFlagIsBigEndian)
anyBigEndian = true;
else
anyLittleEndian = true;
}
}
}
}
dfi->mEitherEndianPCM = (anyBigEndian && anyLittleEndian);
}
}
delete[] formatIDs;
}
}
// sort file formats by name
qsort(mFileFormats, mNumFileFormats, sizeof(FileFormatInfo), CompareFileFormatNames);
bail:
delete[] fileTypes;
delete[] readableFormats;
delete[] writableFormats;
}
// note that the outgoing format will have zero for the sample rate, channels per frame, bytesPerPacket, bytesPerFrame
bool CAAudioFileFormats::InferDataFormatFromFileFormat(AudioFileTypeID filetype, CAStreamBasicDescription &fmt)
{
// if the file format only supports one data format
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
if (ffi->mFileTypeID == filetype && ffi->mNumDataFormats == 1) {
DataFormatInfo *dfi = &ffi->mDataFormats[0];
memset(&fmt, 0, sizeof(fmt));
fmt.mFormatID = dfi->mFormatID;
if (dfi->mNumVariants > 0) {
// take the first variant as a default
fmt = dfi->mVariants[0];
if (dfi->mNumVariants > 1 && dfi->mFormatID == kAudioFormatLinearPCM) {
// look for a 16-bit variant as a better default
for (int j = 0; j < dfi->mNumVariants; ++j) {
AudioStreamBasicDescription *desc = &dfi->mVariants[j];
if (desc->mBitsPerChannel == 16) {
fmt = *desc;
break;
}
}
}
}
return true;
}
}
return false;
}
bool CAAudioFileFormats::InferFileFormatFromFilename(CFStringRef filename, AudioFileTypeID &filetype)
{
bool result = false;
CFRange range = CFStringFind(filename, CFSTR("."), kCFCompareBackwards);
if (range.location == kCFNotFound) return false;
range.location += 1;
range.length = CFStringGetLength(filename) - range.location;
CFStringRef ext = CFStringCreateWithSubstring(NULL, filename, range);
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
if (ffi->MatchExtension(ext)) {
filetype = ffi->mFileTypeID;
result = true;
break;
}
}
CFRelease(ext);
return result;
}
bool CAAudioFileFormats::InferFileFormatFromFilename(const char *filename, AudioFileTypeID &filetype)
{
if (filename == NULL) return false;
CFStringRef cfname = CFStringCreateWithCString(NULL, filename, kCFStringEncodingUTF8);
bool result = InferFileFormatFromFilename(cfname, filetype);
CFRelease(cfname);
return result;
}
bool CAAudioFileFormats::InferFileFormatFromDataFormat(const CAStreamBasicDescription &fmt,
AudioFileTypeID &filetype)
{
// if there's exactly one file format that supports this data format
FileFormatInfo *theFileFormat = NULL;
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
DataFormatInfo *dfi = ffi->mDataFormats, *dfiend = dfi + ffi->mNumDataFormats;
for ( ; dfi < dfiend; ++dfi)
if (dfi->mFormatID == fmt.mFormatID) {
if (theFileFormat != NULL)
return false; // ambiguous
theFileFormat = ffi; // got a candidate
}
}
if (theFileFormat == NULL)
return false;
filetype = theFileFormat->mFileTypeID;
return true;
}
bool CAAudioFileFormats::IsKnownDataFormat(OSType dataFormat)
{
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
DataFormatInfo *dfi = ffi->mDataFormats, *dfiend = dfi + ffi->mNumDataFormats;
for ( ; dfi < dfiend; ++dfi)
if (dfi->mFormatID == dataFormat)
return true;
}
return false;
}
CAAudioFileFormats::FileFormatInfo * CAAudioFileFormats::FindFileFormat(UInt32 formatID)
{
for (int i = 0; i < mNumFileFormats; ++i) {
FileFormatInfo *ffi = &mFileFormats[i];
if (ffi->mFileTypeID == formatID)
return ffi;
}
return NULL;
}
bool CAAudioFileFormats::FileFormatInfo::AnyWritableFormats()
{
DataFormatInfo *dfi = mDataFormats, *dfiend = dfi + mNumDataFormats;
for ( ; dfi < dfiend; ++dfi)
if (dfi->mWritable)
return true;
return false;
}
char *OSTypeToStr(char *buf, OSType t)
{
char *p = buf;
char str[4], *q = str;
*(UInt32 *)str = EndianU32_NtoB(t);
for (int i = 0; i < 4; ++i) {
if (isprint(*q) && *q != '\\')
*p++ = *q++;
else {
sprintf(p, "\\x%02x", *q++);
p += 4;
}
}
*p = '\0';
return buf;
}
int StrToOSType(const char *str, OSType &t)
{
char buf[4];
const char *p = str;
int x;
for (int i = 0; i < 4; ++i) {
if (*p != '\\') {
if ((buf[i] = *p++) == '\0') {
// special-case for 'aac ': if we only got three characters, assume the last was a space
if (i == 3) {
--p;
buf[i] = ' ';
break;
}
goto fail;
}
} else {
if (*++p != 'x') goto fail;
if (sscanf(++p, "%02X", &x) != 1) goto fail;
buf[i] = x;
p += 2;
}
}
t = EndianU32_BtoN(*(UInt32 *)buf);
return p - str;
fail:
return 0;
}
#if DEBUG
void CAAudioFileFormats::DebugPrint()
{
for (int i = 0; i < mNumFileFormats; ++i)
mFileFormats[i].DebugPrint();
}
void CAAudioFileFormats::FileFormatInfo::DebugPrint()
{
char ftype[20];
char ftypename[64];
CFStringGetCString(mFileTypeName, ftypename, sizeof(ftypename), kCFStringEncodingUTF8);
printf("File type: '%s' = %s\n Extensions:", OSTypeToStr(ftype, mFileTypeID), ftypename);
int i, n = NumberOfExtensions();
for (i = 0; i < n; ++i) {
GetExtension(i, ftype, sizeof(ftype));
printf(" .%s", ftype);
}
printf("\n Formats:\n");
for (i = 0; i < mNumDataFormats; ++i)
mDataFormats[i].DebugPrint();
}
void CAAudioFileFormats::DataFormatInfo::DebugPrint()
{
char buf[20];
static char *ny[] = { "not ", "" };
printf(" '%s': %sreadable %swritable\n", OSTypeToStr(buf, mFormatID), ny[mReadable], ny[mWritable]);
for (int i = 0; i < mNumVariants; ++i) {
CAStreamBasicDescription desc(mVariants[i]);
desc.PrintFormat(stdout, " ", "");
//printf(" %d bytes/frame\n", desc.mBytesPerFrame);
}
}
#endif

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Sources/CoreAudioSDK/CAAudioFileFormats.h Normal file
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/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
CAAudioFileFormats.h
=============================================================================*/
#ifndef __CAAudioFileFormats_h__
#define __CAAudioFileFormats_h__
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
#include <AudioToolbox/AudioToolbox.h>
#else
#include <AudioToolbox.h>
#endif
#include "CAStreamBasicDescription.h"
class CAAudioFileFormats {
public:
struct DataFormatInfo {
DataFormatInfo() : mVariants(NULL) { }
~DataFormatInfo() { delete[] mVariants; }
UInt32 mFormatID;
int mNumVariants;
AudioStreamBasicDescription * mVariants;
bool mReadable;
bool mWritable;
bool mEitherEndianPCM;
#if DEBUG
void DebugPrint();
#endif
};
struct FileFormatInfo {
FileFormatInfo() : mFileTypeName(NULL), mExtensions(NULL), mDataFormats(NULL) { }
~FileFormatInfo() {
delete[] mDataFormats;
if (mFileTypeName)
CFRelease(mFileTypeName);
if (mExtensions)
CFRelease(mExtensions);
}
AudioFileTypeID mFileTypeID;
CFStringRef mFileTypeName;
CFArrayRef mExtensions;
int mNumDataFormats;
DataFormatInfo * mDataFormats;
int NumberOfExtensions() { return mExtensions ? CFArrayGetCount(mExtensions) : 0; }
char * GetExtension(int index, char *buf, int buflen) {
CFStringRef cfext = (CFStringRef)CFArrayGetValueAtIndex(mExtensions, index);
CFStringGetCString(cfext, buf, buflen, kCFStringEncodingUTF8);
return buf;
}
bool MatchExtension(CFStringRef testExt) { // testExt should not include "."
CFIndex n = NumberOfExtensions();
for (CFIndex i = 0; i < n; ++i) {
CFStringRef ext = (CFStringRef)CFArrayGetValueAtIndex(mExtensions, i);
if (CFStringCompare(ext, testExt, kCFCompareCaseInsensitive) == kCFCompareEqualTo)
return true;
}
return false;
}
bool AnyWritableFormats();
#if DEBUG
void DebugPrint();
#endif
};
private: // use Instance()
CAAudioFileFormats();
~CAAudioFileFormats();
public:
bool InferDataFormatFromFileFormat(AudioFileTypeID filetype, CAStreamBasicDescription &fmt);
bool InferFileFormatFromFilename(const char *filename, AudioFileTypeID &filetype);
bool InferFileFormatFromFilename(CFStringRef filename, AudioFileTypeID &filetype);
bool InferFileFormatFromDataFormat(const CAStreamBasicDescription &fmt, AudioFileTypeID &filetype);
bool IsKnownDataFormat(UInt32 dataFormat);
#if DEBUG
void DebugPrint();
#endif
int mNumFileFormats;
FileFormatInfo * mFileFormats;
FileFormatInfo * FindFileFormat(UInt32 formatID);
static CAAudioFileFormats * Instance();
private:
static CAAudioFileFormats * sInstance;
};
char * OSTypeToStr(char *buf, UInt32 t);
int StrToOSType(const char *str, UInt32 &t);
#endif // __CAAudioFileFormats_h__

528
Sources/CoreAudioSDK/CAStreamBasicDescription.cpp Normal file
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@ -0,0 +1,528 @@
/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
CAStreamBasicDescription.cpp
=============================================================================*/
#include "CAConditionalMacros.h"
#include "CAStreamBasicDescription.h"
#include "CAMath.h"
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
#include <CoreFoundation/CFByteOrder.h>
#else
#include <CFByteOrder.h>
#endif
#pragma mark This file needs to compile on earlier versions of the OS, so please keep that in mind when editing it
const AudioStreamBasicDescription CAStreamBasicDescription::sEmpty = { 0.0, 0, 0, 0, 0, 0, 0, 0, 0 };
CAStreamBasicDescription::CAStreamBasicDescription(double inSampleRate, UInt32 inFormatID,
UInt32 inBytesPerPacket, UInt32 inFramesPerPacket,
UInt32 inBytesPerFrame, UInt32 inChannelsPerFrame,
UInt32 inBitsPerChannel, UInt32 inFormatFlags)
{
mSampleRate = inSampleRate;
mFormatID = inFormatID;
mBytesPerPacket = inBytesPerPacket;
mFramesPerPacket = inFramesPerPacket;
mBytesPerFrame = inBytesPerFrame;
mChannelsPerFrame = inChannelsPerFrame;
mBitsPerChannel = inBitsPerChannel;
mFormatFlags = inFormatFlags;
mReserved = 0;
}
void CAStreamBasicDescription::PrintFormat(FILE *f, const char *indent, const char *name) const
{
fprintf(f, "%s%s ", indent, name);
char formatID[5];
*(UInt32 *)formatID = CFSwapInt32HostToBig(mFormatID);
formatID[4] = '\0';
fprintf(f, "%2d ch, %6.0f Hz, '%-4.4s' (0x%08X) ",
(int)NumberChannels(), mSampleRate, formatID,
(int)mFormatFlags);
if (mFormatID == kAudioFormatLinearPCM) {
bool isInt = !(mFormatFlags & kLinearPCMFormatFlagIsFloat);
int wordSize = SampleWordSize();
const char *endian = (wordSize > 1) ?
((mFormatFlags & kLinearPCMFormatFlagIsBigEndian) ? " big-endian" : " little-endian" ) : "";
const char *sign = isInt ?
((mFormatFlags & kLinearPCMFormatFlagIsSignedInteger) ? " signed" : " unsigned") : "";
const char *floatInt = isInt ? "integer" : "float";
char packed[32];
if (wordSize > 0 && PackednessIsSignificant()) {
if (mFormatFlags & kLinearPCMFormatFlagIsPacked)
sprintf(packed, "packed in %d bytes", wordSize);
else
sprintf(packed, "unpacked in %d bytes", wordSize);
} else
packed[0] = '\0';
const char *align = (wordSize > 0 && AlignmentIsSignificant()) ?
((mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) ? " high-aligned" : " low-aligned") : "";
const char *deinter = (mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? ", deinterleaved" : "";
const char *commaSpace = (packed[0]!='\0') || (align[0]!='\0') ? ", " : "";
fprintf(f, "%d-bit%s%s %s%s%s%s%s\n",
(int)mBitsPerChannel, endian, sign, floatInt,
commaSpace, packed, align, deinter);
} else if (mFormatID == 'alac') { // kAudioFormatAppleLossless
int sourceBits = 0;
switch (mFormatFlags)
{
case 1: // kAppleLosslessFormatFlag_16BitSourceData
sourceBits = 16;
break;
case 2: // kAppleLosslessFormatFlag_20BitSourceData
sourceBits = 20;
break;
case 3: // kAppleLosslessFormatFlag_24BitSourceData
sourceBits = 24;
break;
case 4: // kAppleLosslessFormatFlag_32BitSourceData
sourceBits = 32;
break;
}
if (sourceBits)
fprintf(f, "from %d-bit source, ", sourceBits);
else
fprintf(f, "from UNKNOWN source bit depth, ");
fprintf(f, "%d frames/packet\n", (int)mFramesPerPacket);
}
else
fprintf(f, "%d bits/channel, %d bytes/packet, %d frames/packet, %d bytes/frame\n",
(int)mBitsPerChannel, (int)mBytesPerPacket, (int)mFramesPerPacket, (int)mBytesPerFrame);
}
void CAStreamBasicDescription::NormalizeLinearPCMFormat(AudioStreamBasicDescription& ioDescription)
{
// the only thing that changes is to make mixable linear PCM into the canonical linear PCM format
if((ioDescription.mFormatID == kAudioFormatLinearPCM) && ((ioDescription.mFormatFlags & kIsNonMixableFlag) == 0))
{
// the canonical linear PCM format is 32 bit native endian floats
ioDescription.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
ioDescription.mBytesPerPacket = sizeof(Float32) * ioDescription.mChannelsPerFrame;
ioDescription.mFramesPerPacket = 1;
ioDescription.mBytesPerFrame = sizeof(Float32) * ioDescription.mChannelsPerFrame;
ioDescription.mBitsPerChannel = 8 * sizeof(Float32);
}
}
void CAStreamBasicDescription::ResetFormat(AudioStreamBasicDescription& ioDescription)
{
ioDescription.mSampleRate = 0;
ioDescription.mFormatID = 0;
ioDescription.mBytesPerPacket = 0;
ioDescription.mFramesPerPacket = 0;
ioDescription.mBytesPerFrame = 0;
ioDescription.mChannelsPerFrame = 0;
ioDescription.mBitsPerChannel = 0;
ioDescription.mFormatFlags = 0;
}
void CAStreamBasicDescription::FillOutFormat(AudioStreamBasicDescription& ioDescription, const AudioStreamBasicDescription& inTemplateDescription)
{
if(fiszero(ioDescription.mSampleRate))
{
ioDescription.mSampleRate = inTemplateDescription.mSampleRate;
}
if(ioDescription.mFormatID == 0)
{
ioDescription.mFormatID = inTemplateDescription.mFormatID;
}
if(ioDescription.mFormatFlags == 0)
{
ioDescription.mFormatFlags = inTemplateDescription.mFormatFlags;
}
if(ioDescription.mBytesPerPacket == 0)
{
ioDescription.mBytesPerPacket = inTemplateDescription.mBytesPerPacket;
}
if(ioDescription.mFramesPerPacket == 0)
{
ioDescription.mFramesPerPacket = inTemplateDescription.mFramesPerPacket;
}
if(ioDescription.mBytesPerFrame == 0)
{
ioDescription.mBytesPerFrame = inTemplateDescription.mBytesPerFrame;
}
if(ioDescription.mChannelsPerFrame == 0)
{
ioDescription.mChannelsPerFrame = inTemplateDescription.mChannelsPerFrame;
}
if(ioDescription.mBitsPerChannel == 0)
{
ioDescription.mBitsPerChannel = inTemplateDescription.mBitsPerChannel;
}
}
void CAStreamBasicDescription::GetSimpleName(const AudioStreamBasicDescription& inDescription, char* outName, bool inAbbreviate)
{
switch(inDescription.mFormatID)
{
case kAudioFormatLinearPCM:
{
const char* theEndianString = NULL;
if((inDescription.mFormatFlags & kAudioFormatFlagIsBigEndian) != 0)
{
#if TARGET_RT_LITTLE_ENDIAN
theEndianString = "Big Endian";
#endif
}
else
{
#if TARGET_RT_BIG_ENDIAN
theEndianString = "Little Endian";
#endif
}
const char* theKindString = NULL;
if((inDescription.mFormatFlags & kAudioFormatFlagIsFloat) != 0)
{
theKindString = (inAbbreviate ? "Float" : "Floating Point");
}
else if((inDescription.mFormatFlags & kAudioFormatFlagIsSignedInteger) != 0)
{
theKindString = (inAbbreviate ? "SInt" : "Signed Integer");
}
else
{
theKindString = (inAbbreviate ? "UInt" : "Unsigned Integer");
}
const char* thePackingString = NULL;
if((inDescription.mFormatFlags & kAudioFormatFlagIsPacked) == 0)
{
if((inDescription.mFormatFlags & kAudioFormatFlagIsAlignedHigh) != 0)
{
thePackingString = "High";
}
else
{
thePackingString = "Low";
}
}
const char* theMixabilityString = NULL;
if((inDescription.mFormatFlags & kIsNonMixableFlag) == 0)
{
theMixabilityString = "Mixable";
}
else
{
theMixabilityString = "Unmixable";
}
if(inAbbreviate)
{
if(theEndianString != NULL)
{
if(thePackingString != NULL)
{
sprintf(outName, "%s %d Ch %s %s %s%d/%s%d", theMixabilityString, (int)inDescription.mChannelsPerFrame, theEndianString, thePackingString, theKindString, (int)inDescription.mBitsPerChannel, theKindString, (int)(inDescription.mBytesPerFrame / inDescription.mChannelsPerFrame) * 8);
}
else
{
sprintf(outName, "%s %d Ch %s %s%d", theMixabilityString, (int)inDescription.mChannelsPerFrame, theEndianString, theKindString, (int)inDescription.mBitsPerChannel);
}
}
else
{
if(thePackingString != NULL)
{
sprintf(outName, "%s %d Ch %s %s%d/%s%d", theMixabilityString, (int)inDescription.mChannelsPerFrame, thePackingString, theKindString, (int)inDescription.mBitsPerChannel, theKindString, (int)((inDescription.mBytesPerFrame / inDescription.mChannelsPerFrame) * 8));
}
else
{
sprintf(outName, "%s %d Ch %s%d", theMixabilityString, (int)inDescription.mChannelsPerFrame, theKindString, (int)inDescription.mBitsPerChannel);
}
}
}
else
{
if(theEndianString != NULL)
{
if(thePackingString != NULL)
{
sprintf(outName, "%s %d Channel %d Bit %s %s Aligned %s in %d Bits", theMixabilityString, (int)inDescription.mChannelsPerFrame, (int)inDescription.mBitsPerChannel, theEndianString, theKindString, thePackingString, (int)(inDescription.mBytesPerFrame / inDescription.mChannelsPerFrame) * 8);
}
else
{
sprintf(outName, "%s %d Channel %d Bit %s %s", theMixabilityString, (int)inDescription.mChannelsPerFrame, (int)inDescription.mBitsPerChannel, theEndianString, theKindString);
}
}
else
{
if(thePackingString != NULL)
{
sprintf(outName, "%s %d Channel %d Bit %s Aligned %s in %d Bits", theMixabilityString, (int)inDescription.mChannelsPerFrame, (int)inDescription.mBitsPerChannel, theKindString, thePackingString, (int)(inDescription.mBytesPerFrame / inDescription.mChannelsPerFrame) * 8);
}
else
{
sprintf(outName, "%s %d Channel %d Bit %s", theMixabilityString, (int)inDescription.mChannelsPerFrame, (int)inDescription.mBitsPerChannel, theKindString);
}
}
}
}
break;
case kAudioFormatAC3:
strcpy(outName, "AC-3");
break;
case kAudioFormat60958AC3:
strcpy(outName, "AC-3 for SPDIF");
break;
default:
{
char* the4CCString = (char*)&inDescription.mFormatID;
outName[0] = the4CCString[0];
outName[1] = the4CCString[1];
outName[2] = the4CCString[2];
outName[3] = the4CCString[3];
outName[4] = 0;
}
break;
};
}
#if CoreAudio_Debug
#include "CALogMacros.h"
void CAStreamBasicDescription::PrintToLog(const AudioStreamBasicDescription& inDesc)
{
PrintFloat (" Sample Rate: ", inDesc.mSampleRate);
Print4CharCode (" Format ID: ", inDesc.mFormatID);
PrintHex (" Format Flags: ", inDesc.mFormatFlags);
PrintInt (" Bytes per Packet: ", inDesc.mBytesPerPacket);
PrintInt (" Frames per Packet: ", inDesc.mFramesPerPacket);
PrintInt (" Bytes per Frame: ", inDesc.mBytesPerFrame);
PrintInt (" Channels per Frame: ", inDesc.mChannelsPerFrame);
PrintInt (" Bits per Channel: ", inDesc.mBitsPerChannel);
}
#endif
bool operator<(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y)
{
bool theAnswer = false;
bool isDone = false;
// note that if either side is 0, that field is skipped
// format ID is the first order sort
if((!isDone) && ((x.mFormatID != 0) && (y.mFormatID != 0)))
{
if(x.mFormatID != y.mFormatID)
{
// formats are sorted numerically except that linear
// PCM is always first
if(x.mFormatID == kAudioFormatLinearPCM)
{
theAnswer = true;
}
else if(y.mFormatID == kAudioFormatLinearPCM)
{
theAnswer = false;
}
else
{
theAnswer = x.mFormatID < y.mFormatID;
}
isDone = true;
}
}
// mixable is always better than non-mixable for linear PCM and should be the second order sort item
if((!isDone) && ((x.mFormatID == kAudioFormatLinearPCM) && (y.mFormatID == kAudioFormatLinearPCM)))
{
if(((x.mFormatFlags & kIsNonMixableFlag) == 0) && ((y.mFormatFlags & kIsNonMixableFlag) != 0))
{
theAnswer = true;
isDone = true;
}
else if(((x.mFormatFlags & kIsNonMixableFlag) != 0) && ((y.mFormatFlags & kIsNonMixableFlag) == 0))
{
theAnswer = false;
isDone = true;
}
}
// floating point vs integer for linear PCM only
if((!isDone) && ((x.mFormatID == kAudioFormatLinearPCM) && (y.mFormatID == kAudioFormatLinearPCM)))
{
if((x.mFormatFlags & kAudioFormatFlagIsFloat) != (y.mFormatFlags & kAudioFormatFlagIsFloat))
{
// floating point is better than integer
theAnswer = y.mFormatFlags & kAudioFormatFlagIsFloat;
isDone = true;
}
}
// bit depth
if((!isDone) && ((x.mBitsPerChannel != 0) && (y.mBitsPerChannel != 0)))
{
if(x.mBitsPerChannel != y.mBitsPerChannel)
{
// deeper bit depths are higher quality
theAnswer = x.mBitsPerChannel < y.mBitsPerChannel;
isDone = true;
}
}
// sample rate
if((!isDone) && fnonzero(x.mSampleRate) && fnonzero(y.mSampleRate))
{
if(fnotequal(x.mSampleRate, y.mSampleRate))
{
// higher sample rates are higher quality
theAnswer = x.mSampleRate < y.mSampleRate;
isDone = true;
}
}
// number of channels
if((!isDone) && ((x.mChannelsPerFrame != 0) && (y.mChannelsPerFrame != 0)))
{
if(x.mChannelsPerFrame != y.mChannelsPerFrame)
{
// more channels is higher quality
theAnswer = x.mChannelsPerFrame < y.mChannelsPerFrame;
isDone = true;
}
}
return theAnswer;
}
static bool MatchFormatFlags(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y)
{
UInt32 xFlags = x.mFormatFlags;
UInt32 yFlags = y.mFormatFlags;
// match wildcards
if (x.mFormatID == 0 || y.mFormatID == 0 || xFlags == 0 || yFlags == 0)
return true;
if (x.mFormatID == kAudioFormatLinearPCM)
{
// knock off the all clear flag
xFlags = xFlags & ~kAudioFormatFlagsAreAllClear;
yFlags = yFlags & ~kAudioFormatFlagsAreAllClear;
// if both kAudioFormatFlagIsPacked bits are set, then we don't care about the kAudioFormatFlagIsAlignedHigh bit.
if (xFlags & yFlags & kAudioFormatFlagIsPacked) {
xFlags = xFlags & ~kAudioFormatFlagIsAlignedHigh;
yFlags = yFlags & ~kAudioFormatFlagIsAlignedHigh;
}
// if both kAudioFormatFlagIsFloat bits are set, then we don't care about the kAudioFormatFlagIsSignedInteger bit.
if (xFlags & yFlags & kAudioFormatFlagIsFloat) {
xFlags = xFlags & ~kAudioFormatFlagIsSignedInteger;
yFlags = yFlags & ~kAudioFormatFlagIsSignedInteger;
}
// if the bit depth is 8 bits or less and the format is packed, we don't care about endianness
if((x.mBitsPerChannel <= 8) && ((xFlags & kAudioFormatFlagIsPacked) == kAudioFormatFlagIsPacked))
{
xFlags = xFlags & ~kAudioFormatFlagIsBigEndian;
}
if((y.mBitsPerChannel <= 8) && ((yFlags & kAudioFormatFlagIsPacked) == kAudioFormatFlagIsPacked))
{
yFlags = yFlags & ~kAudioFormatFlagIsBigEndian;
}
// if the number of channels is 0 or 1, we don't care about non-interleavedness
if (x.mChannelsPerFrame <= 1 && y.mChannelsPerFrame <= 1) {
xFlags &= ~kLinearPCMFormatFlagIsNonInterleaved;
yFlags &= ~kLinearPCMFormatFlagIsNonInterleaved;
}
}
return xFlags == yFlags;
}
bool operator==(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y)
{
// the semantics for equality are:
// 1) Values must match exactly
// 2) wildcard's are ignored in the comparison
#define MATCH(name) ((x.name) == 0 || (y.name) == 0 || (x.name) == (y.name))
return
// check the sample rate
(fiszero(x.mSampleRate) || fiszero(y.mSampleRate) || fequal(x.mSampleRate, y.mSampleRate))
// check the format ids
&& MATCH(mFormatID)
// check the format flags
&& MatchFormatFlags(x, y)
// check the bytes per packet
&& MATCH(mBytesPerPacket)
// check the frames per packet
&& MATCH(mFramesPerPacket)
// check the bytes per frame
&& MATCH(mBytesPerFrame)
// check the channels per frame
&& MATCH(mChannelsPerFrame)
// check the channels per frame
&& MATCH(mBitsPerChannel) ;
}
bool CAStreamBasicDescription::IsEqual(const AudioStreamBasicDescription &other, bool interpretingWildcards) const
{
if (interpretingWildcards)
return *this == other;
return memcmp(this, &other, offsetof(AudioStreamBasicDescription, mReserved)) == 0;
}
bool SanityCheck(const AudioStreamBasicDescription& x)
{
return (x.mSampleRate >= 0.);
}

226
Sources/CoreAudioSDK/CAStreamBasicDescription.h Normal file
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@ -0,0 +1,226 @@
/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*=============================================================================
CAStreamBasicDescription.h
=============================================================================*/
#ifndef __CAStreamBasicDescription_h__
#define __CAStreamBasicDescription_h__
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
#include <CoreAudio/CoreAudioTypes.h>
#include <CoreFoundation/CoreFoundation.h>
#else
#include "CoreAudioTypes.h"
#include "CoreFoundation.h"
#endif
#include "CADebugMacros.h"
#include <string.h> // for memset, memcpy
#include <stdio.h> // for FILE *
#pragma mark This file needs to compile on more earlier versions of the OS, so please keep that in mind when editing it
// define the IsMixable format flag for all versions of the system
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3)
enum { kIsNonMixableFlag = kAudioFormatFlagIsNonMixable };
#else
enum { kIsNonMixableFlag = (1L << 6) };
#endif
//=============================================================================
// CAStreamBasicDescription
//
// This is a wrapper class for the AudioStreamBasicDescription struct.
// It adds a number of convenience routines, but otherwise adds nothing
// to the footprint of the original struct.
//=============================================================================
class CAStreamBasicDescription :
public AudioStreamBasicDescription
{
// Constants
public:
static const AudioStreamBasicDescription sEmpty;
// Construction/Destruction
public:
CAStreamBasicDescription() { memset (this, 0, sizeof(AudioStreamBasicDescription)); }
CAStreamBasicDescription(const AudioStreamBasicDescription &desc)
{
SetFrom(desc);
}
CAStreamBasicDescription( double inSampleRate, UInt32 inFormatID,
UInt32 inBytesPerPacket, UInt32 inFramesPerPacket,
UInt32 inBytesPerFrame, UInt32 inChannelsPerFrame,
UInt32 inBitsPerChannel, UInt32 inFormatFlags);
// Assignment
CAStreamBasicDescription& operator=(const AudioStreamBasicDescription& v) { SetFrom(v); return *this; }
void SetFrom(const AudioStreamBasicDescription &desc)
{
memcpy(this, &desc, sizeof(AudioStreamBasicDescription));
}
// _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
//
// interrogation
bool IsPCM() const { return mFormatID == kAudioFormatLinearPCM; }
bool PackednessIsSignificant() const
{
Assert(IsPCM(), "PackednessIsSignificant only applies for PCM");
return (SampleWordSize() << 3) != mBitsPerChannel;
}
bool AlignmentIsSignificant() const
{
return PackednessIsSignificant() || (mBitsPerChannel & 7) != 0;
}
bool IsInterleaved() const
{
return !IsPCM() || !(mFormatFlags & kAudioFormatFlagIsNonInterleaved);
}
// for sanity with interleaved/deinterleaved possibilities, never access mChannelsPerFrame, use these:
UInt32 NumberInterleavedChannels() const { return IsInterleaved() ? mChannelsPerFrame : 1; }
UInt32 NumberChannelStreams() const { return IsInterleaved() ? 1 : mChannelsPerFrame; }
UInt32 NumberChannels() const { return mChannelsPerFrame; }
UInt32 SampleWordSize() const { return (mBytesPerFrame > 0) ? mBytesPerFrame / NumberInterleavedChannels() : 0;}
UInt32 FramesToBytes(UInt32 nframes) const { return nframes * mBytesPerFrame; }
UInt32 BytesToFrames(UInt32 nbytes) const {
Assert(mBytesPerFrame > 0, "bytesPerFrame must be > 0 in BytesToFrames");
return nbytes / mBytesPerFrame;
}
bool SameChannelsAndInterleaving(const CAStreamBasicDescription &a) const
{
return this->NumberChannels() == a.NumberChannels() && this->IsInterleaved() == a.IsInterleaved();
}
// _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
//
// manipulation
void SetCanonical(UInt32 nChannels, bool interleaved)
// note: leaves sample rate untouched
{
mFormatID = kAudioFormatLinearPCM;
mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
mBitsPerChannel = 32;
mChannelsPerFrame = nChannels;
mFramesPerPacket = 1;
if (interleaved)
mBytesPerPacket = mBytesPerFrame = nChannels * sizeof(Float32);
else {
mBytesPerPacket = mBytesPerFrame = sizeof(Float32);
mFormatFlags |= kAudioFormatFlagIsNonInterleaved;
}
}
void ChangeNumberChannels(UInt32 nChannels, bool interleaved)
// alter an existing format
{
Assert(IsPCM(), "ChangeNumberChannels only works for PCM formats");
UInt32 wordSize = SampleWordSize(); // get this before changing ANYTHING
if (wordSize == 0)
wordSize = (mBitsPerChannel + 7) / 8;
mChannelsPerFrame = nChannels;
mFramesPerPacket = 1;
if (interleaved) {
mBytesPerPacket = mBytesPerFrame = nChannels * wordSize;
mFormatFlags &= ~kAudioFormatFlagIsNonInterleaved;
} else {
mBytesPerPacket = mBytesPerFrame = wordSize;
mFormatFlags |= kAudioFormatFlagIsNonInterleaved;
}
}
// _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
//
// other
bool IsEqual(const AudioStreamBasicDescription &other, bool interpretingWildcards=true) const;
void Print() const
{
Print (stdout);
}
void Print(FILE* file) const
{
PrintFormat (file, "", "AudioStreamBasicDescription:");
}
void PrintFormat(FILE *f, const char *indent, const char *name) const;
OSStatus Save(CFPropertyListRef *outData) const;
OSStatus Restore(CFPropertyListRef &inData);
// Operations
static bool IsMixable(const AudioStreamBasicDescription& inDescription) { return (inDescription.mFormatID == kAudioFormatLinearPCM) && ((inDescription.mFormatFlags & kIsNonMixableFlag) == 0); }
static void NormalizeLinearPCMFormat(AudioStreamBasicDescription& ioDescription);
static void ResetFormat(AudioStreamBasicDescription& ioDescription);
static void FillOutFormat(AudioStreamBasicDescription& ioDescription, const AudioStreamBasicDescription& inTemplateDescription);
static void GetSimpleName(const AudioStreamBasicDescription& inDescription, char* outName, bool inAbbreviate);
#if CoreAudio_Debug
static void PrintToLog(const AudioStreamBasicDescription& inDesc);
#endif
};
bool operator<(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y);
bool operator==(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y);
#if TARGET_OS_MAC || (TARGET_OS_WIN32 && (_MSC_VER > 600))
inline bool operator!=(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y) { return !(x == y); }
inline bool operator<=(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y) { return (x < y) || (x == y); }
inline bool operator>=(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y) { return !(x < y); }
inline bool operator>(const AudioStreamBasicDescription& x, const AudioStreamBasicDescription& y) { return !((x < y) || (x == y)); }
#endif
bool SanityCheck(const AudioStreamBasicDescription& x);
#endif // __CAStreamBasicDescription_h__

212
Sources/VLSoundOut.cpp
View File

@ -19,21 +19,40 @@ class VLAUSoundOut : public VLSoundOut {
public:
VLAUSoundOut();
virtual void PlayNote(const VLNote & note);
virtual void PlayChord(const VLChord & chord);
virtual void PlayFile(CFDataRef file);
virtual void PlayNote(const VLNote & note);
virtual void PlayChord(const VLChord & chord);
virtual void PlayFile(CFDataRef file);
virtual ~VLAUSoundOut();
virtual ~VLAUSoundOut();
void Stop();
protected:
VLAUSoundOut(bool fileOutput);
void InitSoundOut(bool fileOutput);
virtual void SetupOutput(AUNode outputNode);
virtual void PlaySequence(MusicSequence music);
MusicTimeStamp SequenceLength(MusicSequence music);
void Stop();
private:
AUGraph fGraph;
private:
MusicPlayer fPlayer;
MusicSequence fMusic;
bool fRunning;
void PlaySequence(MusicSequence music);
void Play(const int8_t * note, size_t numNotes = 1);
void Play(const int8_t * note, size_t numNotes = 1);
};
class VLAUFileSoundOut : public VLAUSoundOut {
public:
VLAUFileSoundOut(CFURLRef file);
~VLAUFileSoundOut();
protected:
virtual void SetupOutput(AUNode outputNode);
virtual void PlaySequence(MusicSequence music);
private:
AudioUnit fOutput;
CFURLRef fFile;
};
VLSoundEvent::~VLSoundEvent()
@ -64,12 +83,35 @@ void VLSoundOut::SetScheduler(VLSoundScheduler * scheduler)
sSoundScheduler.reset(scheduler);
}
VLSoundOut * VLSoundOut::FileWriter(CFURLRef file)
{
return new VLAUFileSoundOut(file);
}
VLSoundOut::~VLSoundOut()
{
}
VLAUSoundOut::VLAUSoundOut()
: fRunning(false), fMusic(0)
{
InitSoundOutput(false);
}
VLAUSoundOut::VLAUSoundOut(bool fileOutput)
: fRunning(false), fMusic(0)
{
InitSoundOutput(fileOutput);
}
VLAUSoundOut::~VLAUSoundOut()
{
DisposeMusicPlayer(fPlayer);
Stop();
DisposeAUGraph(fGraph);
}
void VLAUSoundOut::InitSoundOutput(bool fileOutput)
{
AUNode synthNode, limiterNode, outNode;
ComponentDescription cd;
@ -91,7 +133,10 @@ VLAUSoundOut::VLAUSoundOut()
AUGraphNewNode (fGraph, &cd, 0, NULL, &limiterNode);
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
if (fileOutput)
cd.componentSubType = kAudioUnitSubType_GenericOutput;
else
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
AUGraphNewNode(fGraph, &cd, 0, NULL, &outNode);
@ -99,16 +144,24 @@ VLAUSoundOut::VLAUSoundOut()
AUGraphConnectNodeInput(fGraph, synthNode, 0, limiterNode, 0);
AUGraphConnectNodeInput(fGraph, limiterNode, 0, outNode, 0);
if (fileOutput) {
UInt32 value = 1;
AudioUnit synth;
AUGraphGetNodeInfo(fGraph, synthNode, 0, 0, 0, &synth)
AudioUnitSetProperty(synth,
kAudioUnitProperty_OfflineRender,
kAudioUnitScope_Global, 0,
&value, sizeof(value));
}
SetupOutput(outNode);
AUGraphInitialize(fGraph);
NewMusicPlayer(&fPlayer);
}
VLAUSoundOut::~VLAUSoundOut()
void VLAUSoundOut::SetupOutput(AUNode)
{
DisposeMusicPlayer(fPlayer);
Stop();
DisposeAUGraph(fGraph);
}
void VLAUSoundOut::PlaySequence(MusicSequence music)
@ -183,3 +236,136 @@ void VLAUSoundOut::PlayFile(CFDataRef file)
PlaySequence(music);
}
MusicTimeStamp VLAUSoundOut::SequenceLength(MusicSequence music)
{
UInt32 ntracks;
MusicSequenceGetTrackCount(sequence, &ntracks);
MusicTimeStamp sequenceLength = 0;
for (UInt32 i = 0; i < ntracks; ++i) {
MusicTrack track;
MusicTimeStamp trackLength;
UInt32 propsize = sizeof(MusicTimeStamp);
MusicSequenceGetIndTrack(sequence, i, &track);
MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
&trackLength, &propsize);
sequenceLength = std::max(sequenceLength, trackLength);
}
return sequenceLength;
}
VLAUFileSoundOut::VLAUFileSoundOut(CFURLRef file)
: VLAUSoundOut(true), fFile(file)
{
CFRetain(fFile);
}
VLAUFileSoundOut::~VLAUFileSoundOut()
{
CFRelease(fFile);
}
void VLAUFileSoundOut::SetupOutput(AUNode outputNode)
{
AUGraphGetNodeInfo(fGraph, outputNode, 0, 0, 0, &fOutput);
Float64 sampleRate = 22050.0;
AudioUnitSetProperty(fOutput,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Output, 0,
&sampleRate, sizeof(sampleRate));
}
void VLAUFileSoundOut::PlaySequence(MusicSequence music)
{
SInt32 urlErr;
CFURLDestroyResource(fFile, &urlErr);
OSStatus result = 0;
UInt32 size;
MusicTimeStamp musicLen = SequenceLength(music)+8;
CFStringRef name =
CFURLCopyLastPathComponent(fFile);
CAAudioFileFormats formats = CAAudioFileFormats::Instance();
AudioFileTypeID fileType;
formats->InferFileFormatFromFilename(name, fileType);
CAStreamBasicDescription outputFormat;
formats->InferDataFormatFromFileFormat(fileType, outputFormat);
outputFormat.mChannelsPerFrame = 2;
if (outputFormat.mFormatID == kAudioFormatLinearPCM) {
outputFormat.mBytesPerPacket = outputFormat.mChannelsPerFrame * 2;
outputFormat.mFramesPerPacket = 1;
outputFormat.mBytesPerFrame = outputFormat.mBytesPerPacket;
outputFormat.mBitsPerChannel = 16;
if (fileType == kAudioFileWAVEType)
outputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
| kLinearPCMFormatFlagIsPacked;
else
outputFormat.mFormatFlags = kLinearPCMFormatFlagIsBigEndian
| kLinearPCMFormatFlagIsSignedInteger
| kLinearPCMFormatFlagIsPacked;
} else {
// use AudioFormat API to fill out the rest.
size = sizeof(outputFormat);
AudioFormatGetProperty(kAudioFormatProperty_FormatInfo, 0, NULL,
&size, &outputFormat);
}
CFURLRef dir =
CFURLCreateCopyDeletingLastPathComponent(NULL, fFile);
FSRef parentDir;
CFURLGetFSRef(dir, &parentDir);
CFRelease(dir);
ExtAudioFileRef outfile;
ExtAudioFileCreateNew(&parentDir, name,
fileType, &outputFormat, NULL, &outfile);
CFRelease(name);
{
CAStreamBasicDescription clientFormat;
size = sizeof(clientFormat);
require_noerr (result = AudioUnitGetProperty (outputUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output, 0,
&clientFormat, &size), fail);
size = sizeof(clientFormat);
require_noerr (result = ExtAudioFileSetProperty(outfile, kExtAudioFileProperty_ClientDataFormat, size, &clientFormat), fail);
{
MusicTimeStamp currentTime;
AUOutputBL outputBuffer (clientFormat, numFrames);
AudioTimeStamp tStamp;
memset (&tStamp, 0, sizeof(AudioTimeStamp));
tStamp.mFlags = kAudioTimeStampSampleTimeValid;
int i = 0;
int numTimesFor10Secs = (int)(10. / (numFrames / srate));
do {
outputBuffer.Prepare();
AudioUnitRenderActionFlags actionFlags = 0;
require_noerr (result = AudioUnitRender (outputUnit, &actionFlags, &tStamp, 0, numFrames, outputBuffer.ABL()), fail);
tStamp.mSampleTime += numFrames;
require_noerr (result = ExtAudioFileWrite(outfile, numFrames, outputBuffer.ABL()), fail);
require_noerr (result = MusicPlayerGetTime (player, &currentTime), fail);
if (shouldPrint && (++i % numTimesFor10Secs == 0))
printf ("current time: %6.2f beats\n", currentTime);
} while (currentTime < sequenceLength);
}
}
// close
ExtAudioFileDispose(outfile);
return;
fail:
printf ("Problem: %ld\n", result);
exit(1);
}

2
Sources/VLSoundOut.h
View File

@ -29,6 +29,8 @@ public:
class VLSoundOut {
public:
static VLSoundOut * Instance();
static VLSoundOut * FileWriter(CFURLRef file);
static void SetScheduler(VLSoundScheduler * scheduler);
virtual void PlayNote(const VLNote & note) = 0;

8
Vocalese.xcodeproj/project.pbxproj
View File

@ -265,6 +265,7 @@
isa = PBXGroup;
children = (
2A37F4ABFDCFA73011CA2CEA /* Classes */,
9546A1090B08B47A0028503B /* CoreAudio SDK Sources */,
2A37F4AFFDCFA73011CA2CEA /* Other Sources */,
95C461D40B04403600649F92 /* Tools */,
95C461DC0B0442EB00649F92 /* MMA */,
@ -362,6 +363,13 @@
name = Frameworks;
sourceTree = "<group>";
};
9546A1090B08B47A0028503B /* CoreAudio SDK Sources */ = {
isa = PBXGroup;
children = (
);
name = "CoreAudio SDK Sources";
sourceTree = "<group>";
};
955E59560957C0C50045FDA5 /* Tests */ = {
isa = PBXGroup;
children = (