dolby_pl.h

关于DVD的MPEG2用的DSP代码,在DSP的实现MPEG的压缩,解压算法.

/**** AC-3 info return status equates ****/

#define	AC3I_ERR_NONE		0	/* no error, data stream was valid */
#define	AC3I_ERR_SYNC		1	/* invalid sync word */
#define	AC3I_ERR_SAMPRATE	2	/* invalid sample rate */
#define	AC3I_ERR_DATARATE	3	/* invalid data rate */

/**** AC-3 decode return status equates ****/

#define	AC3D_ERR_NONE		0	/* no error, data stream was valid */
#define	AC3D_ERR_RPT		1	/* user block repeat request */
#define	AC3D_ERR_MUTE		2	/* user mute request */
#define	AC3D_ERR_REV		3	/* unsupported bitstream revision */
#define	AC3D_ERR_CHANS		4	/* too many channels in data stream */
#define	AC3D_ERR_MISC		5	/* miscellaneous data error */

/**** AC-3 channel ordering equates ****/

#define	LEFT			0	/* left channel */
#define	CNTR			1	/* center channel */
#define	RGHT			2	/* right channel */
#define	LSUR			3	/* left surround channel */
#define	RSUR			4	/* right surround channel */
#define	LFE			5	/* low frequency effects channel */
#define	MSUR			3	/* mono surround channel */
#define	NONE			-1	/* channel not in use */