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The ltmmVideoProcAmpProperty constants specify the video properties on a video capture device. The values listed below can be used with some of the IltmmVideoProcAmp interface functions.
typedef enum ltmmVideoProcAmpProperty{ltmmVideoProcAmp_Brightness = 0,ltmmVideoProcAmp_Contrast = ( ltmmVideoProcAmp_Brightness + 1 ),ltmmVideoProcAmp_Hue = ( ltmmVideoProcAmp_Contrast + 1 ),ltmmVideoProcAmp_Saturation = ( ltmmVideoProcAmp_Hue + 1 ),ltmmVideoProcAmp_Sharpness = ( ltmmVideoProcAmp_Saturation + 1 ),ltmmVideoProcAmp_Gamma = ( ltmmVideoProcAmp_Sharpness + 1 ),ltmmVideoProcAmp_ColorEnable = ( ltmmVideoProcAmp_Gamma + 1 ),ltmmVideoProcAmp_WhiteBalance = ( ltmmVideoProcAmp_ColorEnable + 1 ),ltmmVideoProcAmp_BacklightCompensation = ( ltmmVideoProcAmp_WhiteBalance + 1 ),ltmmVideoProcAmp_Gain = ( ltmmVideoProcAmp_BacklightCompensation + 1 )} ltmmVideoProcAmpProperty;
[0] Specifies the brightness, also called the black level. For NTSC, the value is expressed in IRE units * 100. For non-NTSC sources, the units are arbitrary, with zero representing blanking and 10,000 representing pure white. Values range from -10,000 to 10,000.
[1] Specifies the contrast, expressed as gain factor * 100. Values range from zero to 10,000.
[2] Specifies the hue, in degrees * 100. Values range from -180,000 to 180,000 (-180 to +180 degrees).
[3] Specifies the saturation. Values range from 0 to 10,000.
[4] Specifies the sharpness. Values range from 0 to 100.
[5] Specifies the gamma, as gamma * 100. Values range from 1 to 500.
[6] Specifies the color enable setting. The possible values are 0 (off) and 1 (on).
[7] Specifies the white balance, as a color temperature in degrees Kelvin. The range of values depends on the device.
[8] Specifies the backlight compensation setting. Possible values are 0 (off) and 1 (on).
[9] Specifies the gain adjustment. Zero is normal. Positive values are brighter and negative values are darker. The range of values depends on the device.
For more detailed information, refer to the MSDN Microsoft documentation for the VideoProcAmpProperty Enumeration.
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