Kramer-electronics VP-790 Manual de usuario Pagina 30

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26 VP-790 Protocol - API Functions
2.16 Black-Level Offset Compensation
2.16.1 byOsdBlackLevelOffsetSet
API index: 148
Sets the black level offset.
Input Parameters
Name Type Range Description
Value UWORD32 0: 0 IRE
1: 7.5 IRE
Black level offset to compensate
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
2.16.2 byOsdBlackLevelOffsetGet
API index: 150
Retrieves the black level offset from either cache or the SPD.
Input Parameters
Name Type Range Description
Option BYTE 0: From cache
1: From SPD
Retrieval method
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code
otherwise
Value UWORD32 0: 0 IRE
1: 7.5 IRE
Black level offset to compensate
2.16.3 byOsdBlackLevelOffsetSave
API index: 149
Saves the black level offset from cache into the SPD.
Input Parameters
None
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
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