ltmmVideoProcAmpProperty Constants
typedef enum ltmmVideoProcAmpProperty
{
ltmmVideoProcAmp_Brightness = 0,
ltmmVideoProcAmp_Contrast = 1,
ltmmVideoProcAmp_Hue = 2,
ltmmVideoProcAmp_Saturation = 3
ltmmVideoProcAmp_Sharpness = 4
ltmmVideoProcAmp_Gamma = 5
ltmmVideoProcAmp_ColorEnable = 6
ltmmVideoProcAmp_WhiteBalance = 7,
ltmmVideoProcAmp_BacklightCompensation = 8
ltmmVideoProcAmp_Gain = 9
} ltmmVideoProcAmpProperty;
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.
Constant |
Description |
ltmmVideoProcAmp_Brightness |
[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. |
ltmmVideoProcAmp_Contrast |
[1] Specifies the contrast, expressed as gain factor * 100. Values range from zero to 10,000. |
ltmmVideoProcAmp_Hue |
[2] Specifies the hue, in degrees * 100. Values range from -180,000 to 180,000 (-180 to +180 degrees). |
ltmmVideoProcAmp_Saturation |
[3] Specifies the saturation. Values range from 0 to 10,000. |
ltmmVideoProcAmp_Sharpness |
[4] Specifies the sharpness. Values range from 0 to 100. |
ltmmVideoProcAmp_Gamma |
[5] Specifies the gamma, as gamma * 100. Values range from 1 to 500. |
ltmmVideoProcAmp_ColorEnable |
[6] Specifies the color enable setting. The possible values are 0 (off) and 1 (on). |
ltmmVideoProcAmp_WhiteBalance |
[7] Specifies the white balance, as a color temperature in degrees Kelvin. The range of values depends on the device. |
ltmmVideoProcAmp_BacklightCompensation |
[8] Specifies the backlight compensation setting. Possible values are 0 (off) and 1 (on). |
ltmmVideoProcAmp_Gain |
[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. |
Comments
For more detailed information, refer to the Microsoft documentation for the VideoProcAmpProperty Enumeration at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directshow/htm/videoprocamppropertyenumeration.asp.