Kramer Electronics VP-790 - Manual (Page 15)

VP-790 Protocol – API Functions 11
2 API Functions
APIs may have a “Get”, “Set” and “Save” function. “Get” reads values, “Set” writes
values into volatile RAM and “Save” writes values into the System Parameter
Database which is located in non-volatile Flash. E.g. setting the brightness by a
byOSDBrightnessSet API call will change the image brightness at runtime. After a
Scaler Board reset the (default) value stored in the SPD is used to initialize the
brightness setting. Thus, to restart the Scaler Board with the last brightness setting
it had to be stored into flash with a byOSDBrightnessSave API call.
2.1
9B
3G-SDI Level B Stream Selection
2.1.1
132B
byOsdSdiLevBStreamSet
API index: 3262
Selects Stream 1 or 2 of a 3G-SDI level B signal.
Input Parameters
Name Type Range Description
Value UWORD32 0: Stream 1
1: Stream 2
Stream select.
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
2.1.2
133B
byOsdSdiLevBStreamGet
API index: 3263
Retrieves the Stream setting from cache or from the SPD.
Input Parameters
Name Type Range Description
Option BYTE 0: From cache
1: From SPD
Retrieval method
None
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
Value UWORD32 0: Stream 1
1: Stream 2
Stream select setting.