mpeg4const.h

black-fin DSP处理器单帧图像获取程序

#ifndef MPEG4CONST_H
#define MPEG4CONST_H

#ifndef ZEX
#define ZEX
#endif

#ifdef TWOTHIRDD1
#define CCIR_FLDBLOCK_HEIGHT 13
#else
#define CCIR_FLDBLOCK_HEIGHT 8
#endif

#define PREDICT_SKIP
#define DEINTERLACE

#ifdef DEINTERLACE

#ifdef TWOTHIRDD1
#define HH 13    // 12 pixels for each field + 1
#else
#define HH 9
#endif

#else

#ifdef TWOTHIRDD1
#define HH 13    // 12 pixels for each field + 1 // always deinterlaced now
#else
#define HH 8
#endif

#endif

#define VISUAL_OBJECT_SEQUENCE_START_CODE   0x01B0
#define VISUAL_OBJECT_SEQUENCE_END_CODE     0x01B1
#define VISUAL_OBJECT_START_CODE            0x01B5
#define VIDEO_OBJECT_START_CODE             0x0100
#define VIDEO_OBJECT_LAYER_START_CODE       0x0120
#define VOP_START_CODE                      0x01B6
#define PKT_RESYNC_MARKER                   0x0001

#define VOL_VERID                           2   // To support Quarterpel
#define VOL_PRIORITY                        1

#define SQUARE_ASPECT_RATIO                 1

#define RECT_SHAPE       0
#define BIN_SHAPE        1
#define BIN_ONLY_SHAPE   2
#define GRAY_SHAPE       3

#define SIMPLE_VO_TYPE 1
#define CORE_VO_TYPE   3


#define H263QUANT      0
#define MPEG4QUANT     1

#define ACVLC_INTRA_LMAX_TABSIZE            21
#define ACVLC_INTRA_RMAX_TABSIZE            27

#define ACVLC_NONINTRA_LMAX_TABSIZE         41
#define ACVLC_NONINTRA_RMAX_TABSIZE         12

#define MAXIMUM_IMAGE_WIDTH     720
#define MAXIMUM_IMAGE_HEIGHT    576 

#define  F_CODE               3

#define BFRAMECNT 0

#define INTRA_DC_PRECISION                   2
#define MAX_ACQUANT                        2047
#define MIN_ACQUANT                       -2048
#define MAX_DCQUANT                      2047<<(INTRA_DC_PRECISION)
#define MIN_DCQUANT                        0   
#define INIT_DC_VALUE                    128<<(INTRA_DC_PRECISION)



// Constant defination for macroblock type
#define MB_INTRA              0x1
#define MB_PATTERN            0x2
#define MB_MOTION_BACKWARD    0x4
#define MB_MOTION_FORWARD     0x8
#define MB_QUANT              0x10

#define BITS_BUFFER_SIZE      512
#define DEMUX_BUFFER_SIZE     1024

// Start codes 
#define SEQUENCE_START_CODE      0X000001B3
#define SEQUENCE_EXTN_CODE       0X000001B5
#define GOP_START_CODE           0X000001B8
#define FRAME_START_CODE         0X00000100
#define FRAME_EXTN_CODE          0X000001B5
#define EOS_START_CODE           0X000001B7
#define USER_START_CODE          0X000001B2


// Constants for rate control
#define  BIT_RATE_VALUE       1000000   /* 1.5 Mbs */
#define  FRAME_RATE_VALUE     25        /* fps */
#define  INIT_MQ_INDEX        8

// Constants for I Frame insersion
#define  MAX_PFRAME_NUM       25

//Constants for padding
#define PAD_X 16
#define PAD_Y 16

//Constants for SCD
#define HISTOSIZE 16
#define SCR 16  

// constants for CCIR input frames
/* Offsets for CCIR 656 frame definition                               **
**                                                                     **
** |<--EAV-->|<----BLANKING---->|<--SAV-->|<-----ACTIVE FIELD----->|   **
**      4            268             4               1440              **
**                                                                     */
#define NTSC  0
#define PAL   1
#define ACTIVE_NTSC   2
#define ACTIVE_PAL    3

#define ACTIVE_FIELD_W  1440
#define EAV_CODE_W      4
#define SAV_CODE_W      4
#define CCIRMB_W        32
#define CCIRMB_H        8

#define NTSC_BLANKING_W      268
#define NTSC_FIELD_START_X   (EAV_CODE_W + NTSC_BLANKING_W + SAV_CODE_W)  /* offset to active field from beginning of row */
#define NTSC_VID_OUT_XCNT    (NTSC_FIELD_START_X + ACTIVE_FIELD_W)        /* 1716 */
#define NTSC_FIELD0_START_Y  20
#define NTSC_FIELD1_START_Y  283
#define NTSC_F1OFFSET        ((NTSC_FIELD0_START_Y*NTSC_VID_OUT_XCNT)+NTSC_FIELD_START_X)
#define NTSC_F2OFFSET        ((NTSC_FIELD1_START_Y*NTSC_VID_OUT_XCNT)+NTSC_FIELD_START_X)
#define NTSC_VID_OUT_YCNT    525

#define PAL_BLANKING_W      280
#define PAL_FIELD_START_X   (EAV_CODE_W + PAL_BLANKING_W + SAV_CODE_W)  /* offset to active field from beginning of row */
#define PAL_VID_OUT_XCNT    (PAL_FIELD_START_X + ACTIVE_FIELD_W)        /* 1716 */
#define PAL_FIELD0_START_Y  22
#define PAL_FIELD1_START_Y  335
#define PAL_F1OFFSET        ((PAL_FIELD0_START_Y*PAL_VID_OUT_XCNT)+PAL_FIELD_START_X)
#define PAL_F2OFFSET        ((PAL_FIELD1_START_Y*PAL_VID_OUT_XCNT)+PAL_FIELD_START_X)
#define PAL_VID_OUT_YCNT    625

/* Defines for Active field capture */
#define ACTIVE_NTSC_V3_TOP_OFFSET	24
#define ACTIVE_NTSC_VID_OUT_YCNT	507
#define ACTIVE_NTSC_F1OFFSET	 	(10*ACTIVE_FIELD_W)
#define ACTIVE_NTSC_F2OFFSET		((NTSC_D1_HEIGHT/2+ACTIVE_NTSC_V3_TOP_OFFSET)*ACTIVE_FIELD_W)

#define ACTIVE_PAL_VID_OUT_YCNT		576
#define ACTIVE_PAL_F1OFFSET		0
#define ACTIVE_PAL_F2OFFSET		(PAL_D1_HEIGHT/2)*ACTIVE_FIELD_W

#define NTSC_D1_HEIGHT 480
#define PAL_D1_HEIGHT  576
#define NTSC_D1_WIDTH  720
#define PAL_D1_WIDTH   720     
#define D1_WIDTH       720
#define HALF_D1_WIDTH  352


#define SCALE_FACTOR  1
#define SCALE_FACTOR_SHIFT  0
#endif

#define VOP_API_PREPROC                 0
#define VOP_API_MOTIONESTIMATION        4
#define VOP_API_GETBMCBCR               8
#define VOP_API_MOTIONCOMPY_EXPAND     12
#define VOP_API_MOTIONCOMPCBCR_EXPAND  16
#define VOP_API_UNCOMPENSATE_PACK_Y    20
#define VOP_API_UNCOMPENSATE_PACK_CBCR 24
#define VOP_API_DCTY                   28
#define VOP_API_DCTC                   32
#define VOP_API_QUANT                  36
#define VOP_API_PREDICT                40
#define VOP_API_ZZRLC                  44
#define VOP_API_IQUANT                 48
#define VOP_API_IDCT                   52
#define VOP_API_VLCPACK                56
#define VOP_API_PREDMV                 60
#define VOP_API_SIZEOF                 64

#define NO_SCALE 0
#define H_SCALE  1
#define V_SCALE  2
#define HV_SCALE 3

#define CCIR422  0
#define I420     1