mp4vdec.h

基于Linux的ffmepg decoder

#ifndef _MP4VDEC_H_
	#define _MP4VDEC_H_

	#include "portab.h"

	// user define, start
	// define MPEG4 decoder output format, select from the following avaiable format
	// RGB888 not Work, due to bank1 memory size too small & "DT" module can not addressing over 2K
//	#define OUTPUT_FMT	OUTPUT_FMT_RGB555
//	#define OUTPUT_FMT	OUTPUT_FMT_RGB565
//	#define OUTPUT_FMT	OUTPUT_FMT_RGB888
	#define OUTPUT_FMT	OUTPUT_FMT_CbYCrY
//	#define OUTPUT_FMT	OUTPUT_FMT_YUV
	// user define, end

	// avaiable format, start
	#define OUTPUT_FMT_CbYCrY	0
	#define OUTPUT_FMT_RGB555	1
	#define OUTPUT_FMT_RGB888	2
	#define OUTPUT_FMT_RGB565	3
	#define OUTPUT_FMT_YUV	4
	// avaiable format, end
	

	#define FARADAY_ERR_FAIL		-1 	// Operation failed.
	#define FARADAY_ERR_OK		0 	// Operation succeed.
	#define FARADAY_ERR_MEMORY	1	// Operation failed (out of memory).
	#define FARADAY_ERR_API		2	// Operation failed (API version error).

	typedef uint32_t (* REQUEST_BS_PTR) (uint8_t * const pu8bs_buf,
							  uint32_t const u32byte_num);
	typedef void (* SEM_WAIT_PTR)(void * pSem);
	typedef void (* SEM_SIGNAL_PTR)(void * pSem);
	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 u32API_version;
		uint32_t *pu32BaseAddr;
		void * pvSemaphore;
		uint32_t u32MaxWidth;
		uint32_t u32MaxHeight;
		uint32_t u32BSBufSize;
		uint8_t * pu8FrameBaseAddr_phy;	// output frame buffer, must 8 bytes align.
		uint8_t * pu8FrameBaseAddr_U_phy;	// frame buffer (U) if output format is yuv420, must 8 bytes align.
		uint8_t * pu8FrameBaseAddr_V_phy;	// frame buffer (V) if output format is yuv420, must 8 bytes align.
		uint32_t u32FrameWidth;			// output frame width, no matter decoded image size
									// "set to 0", means equal to decoded image width
		uint32_t u32FrameHeight;		// output frame height, no matter decoded image size
									// "set to 0", means equal to decoded image height
		uint32_t u32CacheAlign;
		DMA_MALLOC_PTR pfnDmaMalloc;
		DMA_FREE_PTR pfnDmaFree;
		SEM_WAIT_PTR pfnSemWait;
		SEM_SIGNAL_PTR pfnSemSignal;
		REQUEST_BS_PTR pfnRequestBS;
	} FMP4_DEC_PARAM;

	typedef struct
	{
		uint32_t u32VopWidth;
		uint32_t u32VopHeight;
		uint32_t u32UsedBytes;
		uint8_t * pu8FrameBaseAddr_phy;		// output frame buffer
		uint8_t * pu8FrameBaseAddr_U_phy;	// frame buffer (U) if output format is yuv420
		uint8_t * pu8FrameBaseAddr_V_phy;	// frame buffer (V) if output format is yuv420
	} FMP4_DEC_RESULT;

	typedef struct
	{
		int general;
		void *bitstream;
		int length;

		void *image;
		int stride;
		// ben-mark-04'10/21:		int colorspace;
	}
	XVID_DEC_FRAME;


	// This struct is used for per slice rendering
	typedef struct 
	{
		void *y,*u,*v;
		int stride_y, stride_u,stride_v;
	} XVID_DEC_PICTURE;



	typedef struct
	{
		int x;
		int y;
	}
	VECTOR;


	#ifdef MP4VDEC_GLOBALS
		#define MP4VDEC_EXT
	#else
		#define MP4VDEC_EXT extern
	#endif

	MP4VDEC_EXT int32_t
	Mp4VDec_Init(FMP4_DEC_PARAM * ptParam, void ** pptDecHandle);

	MP4VDEC_EXT uint32_t
	Mp4VDec_QueryEmptyBuffer (void * ptDecHandle);

	MP4VDEC_EXT uint32_t
	Mp4VDec_QueryFilledBuffer (void * ptDecHandle);

	MP4VDEC_EXT void
	Mp4VDec_InvalidBS (void * ptDecHandle);

	MP4VDEC_EXT int32_t
	Mp4VDec_FillBuffer(void * ptDecHandle, uint8_t * ptBuf, uint32_t u32BufSize);

	MP4VDEC_EXT void
	Mp4VDec_EndOfData (void * ptDecHandle);

	MP4VDEC_EXT void
	Mp4VDec_SetOutputAddr (void * ptDecHandle,
		uint8_t * pu8output_phy, uint8_t * pu8output_u_phy, uint8_t * pu8output_v_phy);

	MP4VDEC_EXT int32_t
	Mp4VDec_OneFrame(void * ptDecHandle, FMP4_DEC_RESULT * ptResult);

	MP4VDEC_EXT void
	Mp4VDec_Release(void * ptDecHandle);

	MP4VDEC_EXT void
	Mp4VDec_Reinit(void * ptDecHandle);

#ifdef __cplusplus
}
#endif

#endif