Fixed ConverterNode.m file.
vspader
parent
5ad2728d3c
commit
5fd24bd88b
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@ -2,146 +2,6 @@
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// ConverterNode.m
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// Cog
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//
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// Created by Vincent Spader on 8/2/05.
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// Copyright 2005 Vincent Spader. All rights reserved.
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//
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#import "Converter.h"
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#import "Node.h"
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void PrintStreamDesc (AudioStreamBasicDescription *inDesc)
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{
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if (!inDesc) {
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printf ("Can't print a NULL desc!\n");
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return;
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}
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printf ("- - - - - - - - - - - - - - - - - - - -\n");
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printf (" Sample Rate:%f\n", inDesc->mSampleRate);
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printf (" Format ID:%s\n", (char*)&inDesc->mFormatID);
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printf (" Format Flags:%lX\n", inDesc->mFormatFlags);
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printf (" Bytes per Packet:%ld\n", inDesc->mBytesPerPacket);
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printf (" Frames per Packet:%ld\n", inDesc->mFramesPerPacket);
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printf (" Bytes per Frame:%ld\n", inDesc->mBytesPerFrame);
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printf (" Channels per Frame:%ld\n", inDesc->mChannelsPerFrame);
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printf (" Bits per Channel:%ld\n", inDesc->mBitsPerChannel);
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printf ("- - - - - - - - - - - - - - - - - - - -\n");
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}
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@implementation Converter
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//called from the complexfill when the audio is converted...good clean fun
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static OSStatus ACInputProc(AudioConverterRef inAudioConverter, UInt32* ioNumberDataPackets, AudioBufferList* ioData, AudioStreamPacketDescription** outDataPacketDescription, void* inUserData)
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{
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Converter *converter = (Converter *)inUserData;
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OSStatus err = noErr;
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if (converter->inputBufferSize > 0) {
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int amountConverted = *ioNumberDataPackets * converter->inputFormat.mBytesPerPacket;
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if (amountConverted > converter->inputBufferSize) {
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amountConverted = converter->inputBufferSize;
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}
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ioData->mBuffers[0].mData = converter->inputBuffer;
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ioData->mBuffers[0].mDataByteSize = amountConverted;
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ioData->mBuffers[0].mNumberChannels = (converter->inputFormat.mChannelsPerFrame);
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ioData->mNumberBuffers = 1;
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*ioNumberDataPackets = amountConverted / converter->inputFormat.mBytesPerPacket;
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converter->inputBufferSize -= amountConverted;
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converter->inputBuffer = ((char *)converter->inputBuffer) + amountConverted;
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}
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else {
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ioData->mBuffers[0].mData = NULL;
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ioData->mBuffers[0].mDataByteSize = 0;
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ioData->mNumberBuffers = 1;
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*ioNumberDataPackets = 0;
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//Reset the converter's internal bufferrs.
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converter->needsReset = YES;
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}
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return err;
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}
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- (void)reset
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{
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AudioConverterReset(converter);
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}
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- (int)convert:(void *)input amount:(int)inputSize
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{
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AudioBufferList ioData;
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UInt32 ioNumberFrames;
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if (inputSize <= 0) {
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outputBufferSize = inputSize;
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return inputSize;
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}
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OSStatus err;
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needsReset = NO;
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ioNumberFrames = inputSize/inputFormat.mBytesPerFrame;
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ioData.mBuffers[0].mData = outputBuffer;
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ioData.mBuffers[0].mDataByteSize = outputSize;
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ioData.mBuffers[0].mNumberChannels = outputFormat.mChannelsPerFrame;
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ioData.mNumberBuffers = 1;
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inputBuffer = input;
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inputBufferSize = inputSize;
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err = AudioConverterFillComplexBuffer(converter, ACInputProc, self, &ioNumberFrames, &ioData, NULL);
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if (err != noErr || needsReset) //It returns insz at EOS at times...so run it again to make sure all data is converted
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{
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[self reset];
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}
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outputBufferSize = ioData.mBuffers[0].mDataByteSize;
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return inputSize - inputBufferSize;
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}
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- (void)setupWithInputFormat:(AudioStreamBasicDescription)inf outputFormat:(AudioStreamBasicDescription)outf
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{
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//Make the converter
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OSStatus stat = noErr;
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inputFormat = inf;
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outputFormat = outf;
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stat = AudioConverterNew ( &inputFormat, &outputFormat, &converter);
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if (stat != noErr)
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{
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NSLog(@"Error creating converter %i", stat);
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}
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if (inputFormat.mChannelsPerFrame == 1)
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{
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SInt32 channelMap[2] = { 0, 0 };
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stat = AudioConverterSetProperty(converter,kAudioConverterChannelMap,sizeof(channelMap),channelMap);
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if (stat != noErr)
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{
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NSLog(@"Error mapping channels %i", stat);
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}
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}
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outputSize = CHUNK_SIZE;
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UInt32 dataSize = sizeof(outputSize);
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AudioConverterGetProperty(converter,
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kAudioConverterPropertyCalculateOutputBufferSize,
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&dataSize,
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(void*)&outputSize);
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if (outputBuffer)
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{
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free(outputBuffer);
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}
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outputBuffer = malloc(outputSize);//
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// ConverterNode.m
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// Cog
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//
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// Created by Zaphod Beeblebrox on 8/2/05.
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// Copyright 2005 __MyCompanyName__. All rights reserved.
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//
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@ -401,31 +261,4 @@ static OSStatus ACInputProc(AudioConverterRef inAudioConverter, UInt32* ioNumber
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AudioConverterDispose(converter);
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}
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@end
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//PrintStreamDesc(&inf);
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//PrintStreamDesc(&outf);
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}
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- (void *)outputBuffer
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{
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return outputBuffer;
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}
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- (int)outputBufferSize
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{
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return outputBufferSize;
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}
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- (void)cleanUp
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{
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if (outputBuffer) {
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free(outputBuffer);
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outputBuffer = NULL;
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}
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AudioConverterDispose(converter);
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}
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@end
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