Syed Haris Ali
85 lines
3.2 KiB
Objective-C
85 lines
3.2 KiB
Objective-C
//
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// EZAudioFloatData.m
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// EZAudio
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//
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// Created by Syed Haris Ali on 6/23/15.
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// Copyright (c) 2015 Syed Haris Ali. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import "EZAudioFloatData.h"
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#import "EZAudioUtilities.h"
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//------------------------------------------------------------------------------
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#pragma mark - EZAudioFloatData
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//------------------------------------------------------------------------------
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@interface EZAudioFloatData ()
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@property (nonatomic, assign, readwrite) int numberOfChannels;
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@property (nonatomic, assign, readwrite) float **buffers;
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@property (nonatomic, assign, readwrite) UInt32 bufferSize;
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@end
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//------------------------------------------------------------------------------
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@implementation EZAudioFloatData
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//------------------------------------------------------------------------------
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- (void)dealloc
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{
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[EZAudioUtilities freeFloatBuffers:self.buffers
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numberOfChannels:self.numberOfChannels];
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}
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//------------------------------------------------------------------------------
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+ (instancetype)dataWithNumberOfChannels:(int)numberOfChannels
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buffers:(float **)buffers
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bufferSize:(UInt32)bufferSize
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{
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id data = [[self alloc] init];
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size_t size = sizeof(float) * bufferSize;
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float **buffersCopy = [EZAudioUtilities floatBuffersWithNumberOfFrames:bufferSize
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numberOfChannels:numberOfChannels];
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for (int i = 0; i < numberOfChannels; i++)
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{
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memcpy(buffersCopy[i], buffers[i], size);
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}
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((EZAudioFloatData *)data).buffers = buffersCopy;
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((EZAudioFloatData *)data).bufferSize = bufferSize;
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((EZAudioFloatData *)data).numberOfChannels = numberOfChannels;
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return data;
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}
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//------------------------------------------------------------------------------
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- (float *)bufferForChannel:(int)channel
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{
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float *buffer = NULL;
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if (channel < self.numberOfChannels)
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{
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buffer = self.buffers[channel];
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}
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return buffer;
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}
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//------------------------------------------------------------------------------
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@end |