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//
// SampleBuffer.h - MrsWatson
// Created by Nik Reiman on 1/2/12.
// Copyright (c) 2012 Teragon Audio. 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.
//
// 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.
//
#ifndef MrsWatson_SampleBuffer_h
#define MrsWatson_SampleBuffer_h
#include "base/Types.h"
typedef struct {
ChannelCount numChannels;
SampleCount blocksize;
Samples *samples;
} SampleBufferMembers;
typedef SampleBufferMembers *SampleBuffer;
/**
* Create a new SampleBuffer instance
* @param numChannels Number of channels
* @param blocksize Processing blocksize to use
* @return An initialized SampleBuffer instance
*/
SampleBuffer newSampleBuffer(ChannelCount numChannels, SampleCount blocksize);
/**
* Set all samples to zero
* @param self
*/
void sampleBufferClear(SampleBuffer self);
/**
* Copy some samples from another buffer to this one
* @param destinationBuffer
* @param destinationOffset zero-based index of where to start in destinationBuffer.
* @param sourceBuffer Other buffer to copy from
* @param sourceOffset zero-based index of where to start in buffer.
* @param numberOfFrames number of frames to copy.
* @return True on success, false on failure
*/
boolByte sampleBufferCopyAndMapChannelsWithOffset(SampleBuffer destinationBuffer,
SampleCount destinationOffset,
const SampleBuffer sourceBuffer,
SampleCount sourceOffset,
SampleCount numberOfFrames);
/**
* Copy all samples from another buffer to this one
* @param self
* @param buffer Other buffer to copy from
* @return True on success, false on failure
*/
boolByte sampleBufferCopyAndMapChannels(SampleBuffer self, const SampleBuffer buffer);
/**
* Copy a buffer of interlaced short integer samples to a sample buffer. This
* function also converts the samples from integers to floating-point numbers.
* Mostly useful for reading raw PCM data into a format usable by plugins.
* @param self
* @param inPcmSamples Array of interlaced samples. Note that the size of the
* length of this array must match the SampleBuffer's blocksize * channel count,
* or else undefined behavior will occur.
*/
void sampleBufferCopyPcmSamples(SampleBuffer self, const short *inPcmSamples);
/**
* Get an array of interlaced short integer samples from the SampleBuffer. This
* function will also convert the samples from floating-point numbers to short
* integers. Mostly useful for writing raw PCM data.
* @param self
* @param outPcmSamples A pre-allocated array large enough to hold the result of
* the conversion. This means that at least blocksize * channel count samples
* must be allocated
* @param flipEndian True if the output data should have the samples flipped
* from the native endianness.
*/
void sampleBufferGetPcmSamples(const SampleBuffer self, short *outPcmSamples, boolByte flipEndian);
/**
* Free all memory used by a SampleBuffer instance
* @param sampleBuffer
*/
void freeSampleBuffer(SampleBuffer self);
#endif
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