GA_videoInf

Declaration

typedef struct {
    N_uint32    dwSize;
    N_uint32    VideoInputFormats;
    N_uint32    VideoOutputFlags;
    N_uint16    VideoMinXScale;
    N_uint16    VideoMinYScale;
    N_uint16    VideoMaxXScale;
    N_uint16    VideoMaxYScale;
    } GA_videoInf

Prototype In

snap/graphics.h

Description

Hardware video window information. There is a single structure for each available hardware video window, and defines the capabilities of that hardware video window. The VideoMinXScale and VideoMinYScale members defines the inverse of minimum scale ratio supported by the hardware in the each direction. For instance if the value is 4, the hardware can only scale video down to a window that is 1/4 the size of the source input video. The VideoMaxXScale and VideoMaxYScale define the maxium scale ratio supported by the hardware. For instance if the value is 4, the hardware can only scale video data up to a window that 4 times the size of the source input video.

Members

dwSize

Set to size of structure in bytes

VideoInputFormats

Hardware video input format flags

VideoOutputFlags

Hardware video output format capabilities

VideoMinXScale

Minimum X scale factor (1/value)

VideoMinYScale

Minimum Y scale factor (1/value)

VideoMaxXScale

Maximum X scale factor

VideoMaxYScale

Maximum Y scale factor

 

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