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portAudioPipe.h
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Thu, Mar 20, 05:43

portAudioPipe.h
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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <conio.h>
#include "PortAudio.h"
#include "soundProcessor.h"
#define SAMPLE_RATE (44100)
#define FRAMES_PER_BUFFER (4)
#define NUM_CHANNELS (1)
#define NUM_SECONDS (15)
/* @todo Underflow and overflow is disabled until we fix priming of blocking write. */
#define CHECK_OVERFLOW (0)
#define CHECK_UNDERFLOW (0)
/* Select sample format. */
#if 0
#define PA_SAMPLE_TYPE paFloat32
#define SAMPLE_SIZE (4)
#define SAMPLE_SILENCE (0.0f)
#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
#define PRINTF_S_FORMAT "%.8f"
#elif 1
#define PA_SAMPLE_TYPE paInt16
#define SAMPLE_SIZE (2)
#define SAMPLE_SILENCE (0)
#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
#define PRINTF_S_FORMAT "%d"
#elif 0
#define PA_SAMPLE_TYPE paInt24
#define SAMPLE_SIZE (3)
#define SAMPLE_SILENCE (0)
#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
#define PRINTF_S_FORMAT "%d"
#elif 0
#define PA_SAMPLE_TYPE paInt8
#define SAMPLE_SIZE (1)
#define SAMPLE_SILENCE (0)
#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
#define PRINTF_S_FORMAT "%d"
#else
#define PA_SAMPLE_TYPE paUInt8
#define SAMPLE_SIZE (1)
#define SAMPLE_SILENCE (128)
#define CLEAR( a ) { \
int i; \
for( i=0; i<FRAMES_PER_BUFFER*NUM_CHANNELS; i++ ) \
((unsigned char *)a)[i] = (SAMPLE_SILENCE); \
}
#define PRINTF_S_FORMAT "%d"
#endif
class portAudioPipe
{
public:
portAudioPipe();
virtual ~portAudioPipe();
void Initial();
void Start();
void Stop();
void printOptions();
void error();
void xrun();
public:
soundProcessor m_soundProcessor;
int option;
private:
PaStreamParameters inputParameters, outputParameters;
PaStream *stream;
PaError err;
char *sampleBlock, *samplePointer;
char *currentBlock;
};

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