cjpeg.h

基于Linux的ffmepg decoder

#ifndef _CJPEG_H_
	#define _CJPEG_H_
	#include "portab.h"
	#include "jpeglib.h"

	typedef void *(* DMA_MALLOC_PTR)(uint32_t size, uint8_t align_size,
							uint8_t reserved_size, void ** phy_ptr);
	typedef void (* DMA_FREE_PTR)(void * virt_ptr, void * phy_ptr);

/*****************************************************************************
 * Decoder structures
 ****************************************************************************/
	typedef struct
	{
		uint32_t *pu32BaseAddr;
		uint32_t u32img_width;		// image width
		uint32_t u32img_height;	// image height
		uint32_t u32comp_num;	// component numbers
		uint32_t u32img_qual;			//usually set 75 < qual <100, if qual<50 the quality of image is very pool
		uint32_t u32rst_interval;		//default value is 0
		uint32_t u32CacheAlign;
		uint32_t u32YAddr_phy;
		uint32_t u32UAddr_phy;
		uint32_t u32VAddr_phy;
		uint32_t u32BSAddr_phy;
		uint32_t u32BS_MaxLen;
		JCS_YUV eYUVsampling;
		DMA_MALLOC_PTR pfnDmaMalloc;
		DMA_FREE_PTR pfnDmaFree;
	} FJPEG_ENC_PARAM;


	#ifdef CJPEG_GLOBALS
		#define CJPEG_EXT
	#else
		#define CJPEG_EXT extern
	#endif

	CJPEG_EXT void
	JpegEnc(FJPEG_ENC_PARAM * ptParam, uint32_t * pu32BS_len);
#endif