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