User manual

Automation Protocol Video Commands
Miranda Technologies Ltd Page 56
Set Key Normal or Invert E
Normal key implies that increasing key values will introduce more of the fill
signal.
Key invert implies that increasing key values introduce less fill. The Key
output is replaced with (1-Key), thereby inverting the action of the Key.
CMD Param_1 Param_2
E Layer No. 0=Normal, 1=Invert
Example:
void SetKeySense(int Layer, int Sense)
{
remote_send("E%x %x", Input, Sense);
}
Set Clip, Gain and Transparency F
This command sets the clip, gain and transparency values for a particular
keyer layer. The parameter values are hexadecimal representations of
unsigned 10-bit luminance values.
Clip is the lowest value of key signal which will cause the fill signal to
contribute to the output. In a keying process this will result in a total absence
of fill video in areas where the incoming key signal is less than the clip level.
Gain sets the level of key signal above which 100% of the fill signal is used.
In a keying process this will result in the fill signal being less transparent than
it otherwise would be in areas with a grey key signal.
Transparency controls the luminance content (grey scale value) of the key
signal and therefore the amount of background video that will 'seep' through
the keyed image.
Note: In swap-preview mode this value is associated with the preview
store. The value will remain with the image as it is stored or
transferred to the program channel.
CMD Param_1 Param_2 Param_3 Param_4
F Layer No. Clip (0-1023) Gain (0-1023) Transparency (0-512)