45 lines
898 B
C++
45 lines
898 B
C++
#ifndef RAGE_SOUND_RESAMPLER_H
|
|
#define RAGE_SOUND_RESAMPLER_H
|
|
|
|
#include "SDL_utils.h"
|
|
|
|
enum { MAX_CHANNELS = 15 };
|
|
|
|
class RageSoundResampler
|
|
{
|
|
int InputRate, OutputRate;
|
|
|
|
Sint16 prev[MAX_CHANNELS];
|
|
|
|
vector<Sint16> outbuf;
|
|
bool at_eof;
|
|
int ipos;
|
|
|
|
float t[MAX_CHANNELS];
|
|
|
|
public:
|
|
RageSoundResampler();
|
|
|
|
/* Configuration: */
|
|
void SetInputSampleRate(int hz) { InputRate = hz; }
|
|
void SetOutputSampleRate(int hz) { OutputRate = hz; }
|
|
|
|
/* Write data to be converted. */
|
|
void write(const void *data, int bytes);
|
|
|
|
/* Indicate that there is no more data. */
|
|
void eof();
|
|
|
|
void reset();
|
|
|
|
/* Return the number of bytes currently readable. */
|
|
unsigned avail() const { return outbuf.size() / 2; }
|
|
|
|
/* Read converted data. Returns the number of bytes filled.
|
|
* If eof() has been called and the output is completely
|
|
* flushed, returns -1. */
|
|
int read(void *data, unsigned bytes);
|
|
};
|
|
|
|
#endif
|