www.pudn.com > VOIP(H323).rar > oomedialx.h

#ifndef _OOMEDIALX_H_
#define _OOMEDIALX_H_

#ifdef __cplusplus
extern "C" {
#endif

#ifndef EXTERN
#ifdef _WIN32
#define EXTERN __declspec(dllexport)
#else
#define EXTERN
#endif /* _WIN32 */
#endif
#include 

/** 
 * @defgroup linuxhelpers Media API Internal Linux Helper Functions
 * @{
 */
/** Global handle to open sound device */
int ghSoundDevice;
/** Global handle to open raw audio data file */
int ghSndFile;

/** Opens a RAW audio data file for read. 
 * @param filename  Name of the file to be opened.
 *
 * @returns         Completion status - 0 on success, -1 on failure
 */
int ooOpenWaveFileForRead(char * filename);

/**
 * Reads data from the opened raw audio file. The number of 
 * bytes to be read is specified by the size parameter.
 * @param databuf     Pointer to a buffer in which data is returned.
 * @param size        Number of bytes to be read.
 *
 * @return            Number of bytes read on success, -1 on failure.
 */
int ooReadWaveFileData(char * databuf, int size);

/**
 * Close the open raw audio data file.
 *
 * @return            Completion status - 0 on success, -1 on failure
 */
int ooCloseWaveFile();

/**
 * Opens the audio device for read/write operation.
 *
 * @return            Completion status - 0 on success, -1 on failure
 */
int ooOpenAudioDevice();

/**
 * Plays a buffer full of audio data onto the audio device.
 * @param buff        Buffer containing the audio data to be played.
 * @param size        Size of the audio data in the buffer
 *
 * @return            Completion status - 0 on success, -1 on failure
 */
int ooPlayAudioBuffer(unsigned char * buff, long size);

/**
 * Reads audio data from the microphone device.
 * @param buff        Buffer in which data has to be captured.
 * @param size        Size of the capture buffer
 *
 * @return            Completion status - 0 on success, -1 on failure
 */
int ooGetMicAudioBuffer(unsigned char * buff, long size);

/** 
 * @} 
 */
#ifdef __cplusplus
}
#endif

#endif