Visual
The visual directory contains a number of sub-directories named source0 to sourceX, corresponding to video inputs 1 to X+1 respectively. There are no files in the visual directory.
Visual Source
The following figure shows the contents of the visual/sourceX directory.
The visual/sourceX directory contains the files corresponding to the visual source X.
The config.xml file holds status and settings of that visual source. The exceptions.xml file reflects the exceptions associated with that visual source.
The formatter and encoder sub-directories correspond to the visual encoder and visual formatter blocks associated with this visual source. Most visual source settings affect both the formatter and the encoder.
/encoder is a symbolic link towards encoder0. It ensure the backward compatibility
The /encoder0 directory is available on all H.264 boards.
The /encoder1 directory is available only on boards having the capability to deliver more than 1 encoded stream, e.g. Picolo U4 H.264, Picolo U8 H.264 and Picolo U16 H.264.
Visual Encoder
The following figure shows the contents of the visual/sourceX/encoderY directory. It corresponds to the encoder block Y associated with sourceX
The config.xml file holds status and settings of the visual encoder associated with the visual source X. The exceptions.xml file reflects the exceptions associated with that encoder.
The visual encoder produces data. The captured data is made available to the user application as files in the data sub-directory. The metadata.xml file contains a description of the captured data.
Visual Formatter
The following figure shows the contents of the visual/sourceX/formatter directory (uncompressed capture function).
The config.xml file stores the status and settings of the visual source. The exceptions.xml file reflects the exceptions associated with that visual formatter.
The visual formatter produces data. The captured data are made available to the user application as files in the data sub-directory. There is one file per buffer for each captured data directory. The metadata.xml file contains a description of the captured data.