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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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