vpp.h

代码有点长,需细心阅读,仅供影音视听类产品的开发人员参考

#define DISPLAY_NORMAL     (0)
#define DISPLAY_LETTERBOX  (0)
#define DISPLAY_PANSCAN    (1)
#define DISPLAY_ZOOM_1_2   (2)
#define DISPLAY_ZOOM_1_6   (3)
#define DISPLAY_ZOOM_2_0   (4)
#define DISPLAY_ZOOM_3_0   (5)
#define DISPLAY_ZOOM_4_0   (6)
#define DISPLAY_ZOOM_MAX   DISPLAY_ZOOM_4_0

#define PAN_UP    (0)
#define PAN_DOWN  (1)
#define PAN_RIGHT (2)
#define PAN_LEFT  (3)

// Source Aspect Ratio
#define ASPECT_4_3      (0)
#define ASPECT_16_9     (1)

// Source TV system
#define TV_525_60       (0)
#define TV_625_50       (1)


// Field Exchange Configuration
#define VINT_TYPE       (0)
#define CHROMA_INTERPOLATE  (1)
#define CHROMA_VINT_DISABLE (2)
#define SINGLE_FIELD_MODE   (3)
#define VIDEO_DISABLE       (4)
#define LINE_BUFFER_DISABLE (5)
#define VINT_INITIAL_VALUE  (6)
#define SINGLE_FIELD_ID     (15)
#define FIELD_CHROMA_REPOSTION  (1<<11)

#define MPEG1_FRAME     ((1<<VINT_TYPE)+(1<<CHROMA_INTERPOLATE))
#define NORMAL_FRAME        ((1<<VINT_TYPE)+(1<<CHROMA_INTERPOLATE)+(1<<CHROMA_VINT_DISABLE)+(1<<LINE_BUFFER_DISABLE))
#define NORMAL_FIELD        ((0<<VINT_TYPE)+(0<<CHROMA_INTERPOLATE)+(1<<CHROMA_VINT_DISABLE)+(1<<LINE_BUFFER_DISABLE))
#define SINGLE_FIELD_TOP_FIELD  ((0<<VINT_TYPE)+(0<<CHROMA_INTERPOLATE)+(1<<SINGLE_FIELD_MODE)+(1<<CHROMA_VINT_DISABLE)+(1<<LINE_BUFFER_DISABLE))
#define SINGLE_FIELD_BTM_FIELD  ((0<<VINT_TYPE)+(0<<CHROMA_INTERPOLATE)+(1<<SINGLE_FIELD_MODE)+(1<<SINGLE_FIELD_ID)+(1<<CHROMA_VINT_DISABLE)+(1<<LINE_BUFFER_DISABLE))


// Source Resoultion
#define RES_720_480_576    (0)
#define RES_704_480_576    (1)
#define RES_352_480_576    (2)
#define RES_352_240_288    (3)
#define RES_480_480_576    (4)

void    setVPP_DoIt(void);
void    setVPP_VideoOn(void);
void    setVPP_VideoOff(void);
void    setVPP_FieldDisplay(void);
void    setVPP_FrameDisplay(void);
void    setVPP_ParamInit(UINT8 res, UINT8 aspect, UINT8 tv);
void    setVPP_Display(int mode);
void    setVPP_ZoomIn(void);
void    setVPP_ZoomOut(void);
void    setVPP_Pan(UINT8, UINT16);

// for vpp.c compatible
void    vpp_set_pic(int, int);

#define  VPP_AUTOEXP                    (1<<0)	/* expansion or not     */
#define  VPP_ASPECT_RATIO           (1<<1)	/* keeping aspect ratio    */
#define  VPP_CENTERED               (1<<2)	/* put the picture in center  */
#define  IsVPPAutoExpansion()       (vpp_mode&VPP_AUTOEXP)
#define  IsVPPKeepAspectRatio()     (vpp_mode&VPP_ASPECT_RATIO)
#define  IsVPPKeepCentered()        (vpp_mode&VPP_CENTERED)

#define  DECODE_TYPE_PAL            0
#define  DECODE_TYPE_NTSC           1

#define VINT_ENCODE(factor, offset) \
   ((UINT16)(factor) | (((INT16) offset) << 10))
//vfactor = 512 * (5 / 6) = 426.6666666 => 427
//offset = 512 * 5 - 427 * 6 = -2

#define VINT_0_625   VINT_ENCODE(819,   1)
#define VINT_0_750   VINT_ENCODE(683,  -1)
#define VINT_0_833   VINT_ENCODE(614,   2)
#define VINT_0_900   VINT_ENCODE(569,  -1)
#define VINT_1_000   VINT_ENCODE(512,   0)
#define VINT_1_100   VINT_ENCODE(466,  -6)
#define VINT_1_200   VINT_ENCODE(427,  -2)
#define VINT_1_300   VINT_ENCODE(394,  -2)
#define VINT_1_333   VINT_ENCODE(384,   0)
#define VINT_1_400   VINT_ENCODE(366,  -2)
#define VINT_1_440   VINT_ENCODE(356, -16)
#define VINT_1_500   VINT_ENCODE(342,  -2)
#define VINT_1_600   VINT_ENCODE(320,   0)
#define VINT_1_667   VINT_ENCODE(307,   1)
#define VINT_1_700   VINT_ENCODE(302, -14)
#define VINT_1_800   VINT_ENCODE(285,  -5)
#define VINT_1_833   VINT_ENCODE(280,  -8)
#define VINT_1_900   VINT_ENCODE(269,   9)
#define VINT_1_920   VINT_ENCODE(267, -16)
#define VINT_2_000   VINT_ENCODE(256,   0)
#define VINT_2_200   VINT_ENCODE(233,-157)
#define VINT_2_400   VINT_ENCODE(213,   4)
#define VINT_2_667   VINT_ENCODE(192,   0)
#define VINT_2_800   VINT_ENCODE(183,  -2)
#define VINT_2_880   VINT_ENCODE(178, -16)
#define VINT_3_000   VINT_ENCODE(171,  -1)
#define VINT_3_200   VINT_ENCODE(160,   0)
#define VINT_3_333   VINT_ENCODE(154,  -4)
#define VINT_3_400   VINT_ENCODE(151,  -7)
#define VINT_3_600   VINT_ENCODE(142,   4)
#define VINT_3_840   VINT_ENCODE(133,  32)
#define VINT_4_000   VINT_ENCODE(128,   0)
#define VINT_4_500   VINT_ENCODE(114,  -2)
#define VINT_4_800   VINT_ENCODE(107,  -8)
#define VINT_5_000   VINT_ENCODE(103,  -3)
#define VINT_5_500   VINT_ENCODE(93,    5)
#define VINT_6_000   VINT_ENCODE(86,   -4)
#define VINT_6_666   VINT_ENCODE(77,   -4)
#define VINT_7_200   VINT_ENCODE(72,   -64)
#define VINT_8_000   VINT_ENCODE(64,    0)
#define VINT_9_600   VINT_ENCODE(53,   +16)
#define VINT_DISABLE (VINT_1_000)


//#define HEXP_1_200 (RF_H_EXP_enable|53)
//hfactor = 64 * (5 / 6) = 53.33333 ==> 53
#define HEXP_DISABLE (0)
#define HEXP_1_000   HEXP_DISABLE
#define HEXP_1_067   (RF_H_EXP_enable|60)
#define HEXP_1_100   (RF_H_EXP_enable|58)
#define HEXP_1_200   (RF_H_EXP_enable|53)
#define HEXP_1_300   (RF_H_EXP_enable|49)
#define HEXP_1_333   (RF_H_EXP_enable|48)
#define HEXP_1_400   (RF_H_EXP_enable|46)
#define HEXP_1_500   (RF_H_EXP_enable|43)
#define HEXP_1_600   (RF_H_EXP_enable|40)
#define HEXP_1_700   (RF_H_EXP_enable|38)
#define HEXP_1_800   (RF_H_EXP_enable|36)
#define HEXP_1_900   (RF_H_EXP_enable|34)
#define HEXP_1_920   (RF_H_EXP_enable|33)
#define HEXP_2_000   (RF_H_EXP_enable|32)
#define HEXP_2_133   (RF_H_EXP_enable|30)
#define HEXP_2_200   (RF_H_EXP_enable|29)
#define HEXP_2_400   (RF_H_EXP_enable|27)
#define HEXP_2_667   (RF_H_EXP_enable|24)
#define HEXP_2_800   (RF_H_EXP_enable|23)
#define HEXP_3_000   (RF_H_EXP_enable|21)
#define HEXP_3_200   (RF_H_EXP_enable|20)
#define HEXP_3_400   (RF_H_EXP_enable|19)
#define HEXP_3_600   (RF_H_EXP_enable|18)
#define HEXP_3_800   (RF_H_EXP_enable|17)
#define HEXP_4_000   (RF_H_EXP_enable|16)
#define HEXP_4_500   (RF_H_EXP_enable|15)
#define HEXP_6_000   (RF_H_EXP_enable|10)
#define CIF_DISABLE  (0<<9)
#define CIF_ENABLE   (1<<9)