Skip to content
Find file
Fetching contributors…
Cannot retrieve contributors at this time
63 lines (53 sloc) 2.75 KB
/*
* Copyright (C) 2010, 2011, 2012 Stephen F. Booth <me@sbooth.org>
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of Stephen F. Booth nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <stddef.h>
#include <assert.h>
#include "AllocateABL.h"
AudioBufferList *
AllocateABL(const AudioStreamBasicDescription& format, UInt32 capacityFrames)
{
return AllocateABL(format.mChannelsPerFrame, format.mBytesPerFrame, !(kAudioFormatFlagIsNonInterleaved & format.mFormatFlags), capacityFrames);
}
AudioBufferList *
AllocateABL(UInt32 channelsPerFrame, UInt32 bytesPerFrame, bool interleaved, UInt32 capacityFrames)
{
AudioBufferList *bufferList = nullptr;
UInt32 numBuffers = interleaved ? 1 : channelsPerFrame;
UInt32 channelsPerBuffer = interleaved ? channelsPerFrame : 1;
bufferList = static_cast<AudioBufferList *>(calloc(1, offsetof(AudioBufferList, mBuffers) + (sizeof(AudioBuffer) * numBuffers)));
bufferList->mNumberBuffers = numBuffers;
for(UInt32 bufferIndex = 0; bufferIndex < bufferList->mNumberBuffers; ++bufferIndex) {
bufferList->mBuffers[bufferIndex].mData = static_cast<void *>(calloc(capacityFrames, bytesPerFrame));
bufferList->mBuffers[bufferIndex].mDataByteSize = capacityFrames * bytesPerFrame;
bufferList->mBuffers[bufferIndex].mNumberChannels = channelsPerBuffer;
}
return bufferList;
}
Jump to Line
Something went wrong with that request. Please try again.