The video capture API includes constants that specify the video capture polarity properties.
#define CAPTURE_PROPERTY_INVERT_FID_POL CAPTURE_PROPERTY( 'Q', 'L', 'F', 'I' )
Specifies whether the field ID signal polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int
#define CAPTURE_PROPERTY_INVERT_VSYNC_POL CAPTURE_PROPERTY( 'Q', 'L', 'H', 'S' )
Specifies whether the vertical synchronization polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int
#define CAPTURE_PROPERTY_INVERT_HSYNC_POL CAPTURE_PROPERTY( 'Q', 'L', 'V', 'S' )
Specifies whether the horizontal synchronization polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int
#define CAPTURE_PROPERTY_INVERT_CLOCK_POL CAPTURE_PROPERTY( 'Q', 'L', 'P', 'C' )
Specifies whether the clock polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int
#define CAPTURE_PROPERTY_INVERT_DATAEN_POL CAPTURE_PROPERTY( 'Q', 'L', 'D', 'E' )
Specifies whether the "data_en" pin/signal polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int
#define CAPTURE_PROPERTY_INVERT_DATA_POL CAPTURE_PROPERTY( 'Q', 'L', 'D', 'A' )
Specifies whether the data input polarity is inverted.
0: Set polarity to not inverted
1: Set polarity to inverted
-1: Don't set the polarity; use whatever polarity is already set
Read/Write int