diff options
Diffstat (limited to 'libs/appleutility/CAStreamBasicDescription.h')
| -rw-r--r-- | libs/appleutility/CAStreamBasicDescription.h | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/libs/appleutility/CAStreamBasicDescription.h b/libs/appleutility/CAStreamBasicDescription.h deleted file mode 100644 index aa41c40fe4..0000000000 --- a/libs/appleutility/CAStreamBasicDescription.h +++ /dev/null @@ -1,224 +0,0 @@ -/* 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 - - 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__ |