116 lines
5.0 KiB
C
116 lines
5.0 KiB
C
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/*
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File: ACCodec.h
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Abstract: Part of CoreAudio Utility Classes
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Version: 1.1
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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Inc. ("Apple") in consideration of your agreement to the following
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terms, and your use, installation, modification or redistribution of
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this Apple software constitutes acceptance of these terms. If you do
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not agree with these terms, please do not use, install, modify or
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redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, Apple grants you a personal, non-exclusive
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license, under Apple's copyrights in this original Apple software (the
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"Apple Software"), to use, reproduce, modify and redistribute the Apple
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Software, with or without modifications, in source and/or binary forms;
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provided that if you redistribute the Apple Software in its entirety and
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without modifications, you must retain this notice and the following
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text and disclaimers in all such redistributions of the Apple Software.
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Neither the name, trademarks, service marks or logos of Apple Inc. may
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be used to endorse or promote products derived from the Apple Software
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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
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implied, are granted by Apple herein, including but not limited to any
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patent rights that may be infringed by your derivative works or by other
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works in which the Apple Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE
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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
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OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
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AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
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STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Copyright (C) 2014 Apple Inc. All Rights Reserved.
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*/
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#if !defined(__ACCodec_h__)
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#define __ACCodec_h__
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//=============================================================================
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// Includes
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//=============================================================================
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#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
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#include <AudioUnit/AudioCodec.h>
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#else
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#include "AudioCodec.h"
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#endif
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#include "ComponentBase.h"
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//=============================================================================
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// ACCodec
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//
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// A totally abstract base class for implementing components that conform to
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// the AudioCodec API.
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//=============================================================================
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class ACCodec : public ComponentBase
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{
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// Construction/Destruction
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public:
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ACCodec(AudioComponentInstance inInstance);
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virtual ~ACCodec();
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#if !CA_USE_AUDIO_PLUGIN_ONLY && !TARGET_OS_IPHONE
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static OSStatus ComponentEntryDispatch(ComponentParameters *p, ACCodec *This);
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#endif
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// Property Management
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public:
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virtual void GetPropertyInfo(AudioCodecPropertyID inPropertyID, UInt32& outSize, Boolean& outWritable) = 0;
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virtual void GetProperty(AudioCodecPropertyID inPropertyID, UInt32& ioPropertyDataSize, void* outPropertyData) = 0;
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virtual void SetProperty(AudioCodecPropertyID inPropertyID, UInt32 inPropertyDataSize, const void* inPropertyData) = 0;
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// Data Handling
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public:
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virtual void Initialize(const AudioStreamBasicDescription* inInputFormat, const AudioStreamBasicDescription* inOutputFormat, const void* inMagicCookie, UInt32 inMagicCookieByteSize) = 0;
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virtual void Uninitialize() = 0;
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virtual void Reset() = 0;
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virtual void AppendInputData(const void* inInputData, UInt32& ioInputDataByteSize, UInt32& ioNumberPackets, const AudioStreamPacketDescription* inPacketDescription) = 0;
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virtual void AppendInputBufferList(const AudioBufferList *ioBufferList, UInt32& ioNumberPackets, const AudioStreamPacketDescription *inPacketDescription, UInt32 *outBytesConsumed) = 0;
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virtual UInt32 ProduceOutputPackets(void* outOutputData, UInt32& ioOutputDataByteSize, UInt32& ioNumberPackets, AudioStreamPacketDescription* outPacketDescription) = 0;
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virtual UInt32 ProduceOutputBufferList(AudioBufferList *ioBufferList, UInt32& ioNumberPackets, AudioStreamPacketDescription *outPacketDescription) = 0;
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// Component Support
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public:
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// used internally
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virtual bool ImplementsFeature(UInt32 feature) const = 0;
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};
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// when throwing static_cast to OSStatus so the catch will grab the error code correctly
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#define CODEC_THROW(err) \
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throw static_cast<OSStatus>(err)
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#define CODEC_THROW_IF(cond, err) \
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if(bool(cond)) CODEC_THROW(err);
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#endif
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