hi_vo_sync_info

Description

Defines the timing information.

This struct is not used in the current version. Users are aware of it only when hi_vo_intf_sync is set to HI_VO_OUT_USER.

Prototype

typedef struct {
    hi_bool syncm;
    hi_bool iop;
    hi_u8 intfb;
    hi_u16 vact;
    hi_u16 vbb;
    hi_u16 vfb;
    hi_u16 hact;
    hi_u16 hbb;
    hi_u16 hfb;
    hi_u16 hmid;
    hi_u16 bvact;
    hi_u16 bvbb;
    hi_u16 bvfb;
    hi_u16 hpw;
    hi_u16 vpw;
    hi_bool idv;
    hi_bool ihs;
    hi_bool ivs;
} hi_vo_sync_info;

Members

Member	Description
syncm	Sync mode. For the RGB interface, set this parameter to 1, which indicates signal synchronization. Value range: [0, 1]
iop	0: interlaced mode; 1: progressive mode. Generally, this parameter is set to 1 for the RGB interface. Value range: [0, 1]
intfb	Invalid parameter, which can be ignored. Value range: [0, 255]
vact	Vertical active region. It indicates the vertical active region of the top field in interlaced output mode. (Unit: line) Value range: [100, 4096]
vbb	Vertical blank back porch. It indicates the vertical blank back porch of the top field in interlaced output mode. (Unit: line) Value range: [1, 256]
vfb	Vertical blank front porch. It indicates the vertical blank front porch of the top field in interlaced output mode. (Unit: line) Value range: [1, 256]
hact	Horizontal active region. (Unit: pixel) Value range: [1, 4096]
hbb	Horizontal blank back porch. (Unit: pixel) Value range: [1, 65535]
hfb	Horizontal blank front porch. (Unit: pixel) Value range: [1, 65535]
hmid	Vertical sync active pixel value of the bottom field. Value range: [0, 65535]
bvact	Vertical active region of the bottom field, which is valid in interlaced mode. (Unit: line) Value range: [0, 4096]
bvbb	Vertical blank back porch of the bottom field, which is valid in interlaced mode. (Unit: line) Value range: [0, 256]
bvfb	Vertical blank front porch of the bottom field, which is valid in interlaced mode. (Unit: line) Value range: [0, 256]
hpw	Width of the horizontal sync signal. (Unit: pixel) Value range: [1, 65535]
vpw	Width of the vertical sync signal. (Unit: line) Value range: [1, 256]
idv	Polarity of the valid data signal. 0: active high; 1: active low Value range: [0, 1]
ihs	Polarity of the horizontal active signal. 0: active high, 1: active low Value range: [0, 1]
ivs	Polarity of the vertical active signal. 0: active high, 1: active low Value range: [0, 1]

Parent topic: VO