g723_api.h

G.723在ARM上的实现。实现平台为Linux2.4.8+ Intel Xscal。包括源代码

/******************************************************************************


******************************************************************************/

#include <time.h>

#ifdef __cplusplus
extern "C" {
#endif

/* String parameters */
#define	MAXFN		256		// Max filename len
#define	MAXSTR		256		// Max string length, in characters 
    										  
/* GUI parameters and constants */
#define MAX_LOADSTRING		100	// Max title bar len

// Performance timer parameters
#define	TIMER_LABEL_MAX		256		/* maximum timer label length */
#define	TIMER_NUM_MAX		25	/* maximum possible number of timers */
#define	TIMER_NUM		2	/* number of timers */
#define	T_ENC			0	/* G.723 encoder timer ID */
#define	T_DEC			1	/* G.723 decoder timer ID */

/* Test vector compliance parameters */
#define	TV_ENCODER		100	/* Test vector type: Encoder */
#define	TV_DECODER		200	/* Test vector type: Decoder */
#define	TV_CRC_DECODER		300	/* Decoder with CRC test vector type */
#define	TV_MIX_ENCODER		400	/* Externally rate-controlled (5.3/6.3 mixed) encoder test vector */
#define	TV_PASS			0	/* Test result: PASS */
#define	TV_FAIL			-1	/* Test result: FAIL */
#define	TV_MISSING		-2	/* Test result: MISSING vector */
#define	ENCODER_TEST		0	/* Test type: Eencoder */				
#define	DECODER_TEST		1	/* Test type: Decoder */

// Performance timer state
typedef struct _performanceTimer
{
	char label[TIMER_LABEL_MAX];
	unsigned long acc;
	clock_t tStart;
	clock_t tStop;
    int freq;
	int blockCount;
	int blockSize;
} performanceTimer;

/* Performance timer API */
int		timerInit							(int n, char *label);
int		timerSetNum							(int numTimers);
int		timerGetNum							(int *numTimers);
int		timerReset							(int n);
int		timerStart							(int n);
int		timerStop							(int n);
int		timerDeltaAcc						(int n);
int		timerSetBlockSize					(int n, int size);
int		timerGetBlockSize					(int n, int *blockSize);
int		timerSetNumBlocks					(int n, int newBlockCount);
int		timerGetNumBlocks					(int n, int *blockCount);
int		timerGetAcc							(int n, int *timerAcc);
int		timerGetLabel						(int n, void *label);
int		timerSetFreq						(int n, int freq);
int		timerGetFreq						(int n, int *timerFreq);
float		getCpuUtilization					(int n, int sampleRate);
int		initTimers_G723						(void);
int		destroyTimers_G723					(void);
						

/* Codec control */
int		initCodec_G723						(IppG723EncoderState *encState, IppG723DecoderState *decState, 
			                                             IppPcmStream *inputSpeech, IppPcmStream *outputSpeech,
			                                             IppBitstream *bitstream, int pcmBufLen, int bitstreamBufLen);
int		destroyCodec_G723					(IppPcmStream *inputSpeech, IppPcmStream *outputSpeech,
														 IppBitstream *bitstream);

#ifdef __cplusplus
}
#endif