Linea2 5GigE Series Camera
Operational Reference
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Extracting Metadata Stored in a Sapera Buffer
For Sapera LT developers, the SapMetadata class (included with Sapera LT version 8.10 and
higher) provides functions for manipulating image metadata. Metadata is appended to the end of
virtual frame buffers; Sapera LT automatically adjusts the buffer size to accommodate metadata.
Sapera provides two methods to view metadata. The Sapera CamExpert tool provides a tab (when
the Metadata feature is enabled) to view the metadata of the last frame capture.
Figure 62: CamExpert
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Metadata Tab
Alternatively, Sapera LT provides a demo program called GigEMetaDataDemo.exe which will grab a
number of frames and display the metadata or save it to a file (.csv). In addition, source code and
C++ project files are included for a console-based executable.
When an internal test pattern image is selected, the Metadata feature values for
Exposure Time and Exposure Delay are not valid values and must be ignored.
When in free-running (not triggered) mode, the Metadata value for feature Exposure
Delay is not a valid value and must be ignored.
The value of LineStatusAll is updated on the start of exposure.
The following figure shows Sapera Explorer with the Metadata Example highlighted.
