simaaimetaparser

The simaaimetaparser GStreamer plugin parses metadata from input buffers and re-attaches it to output buffers. It can extract metadata from either a custom GStreamer metadata structure or directly from the buffer header, depending on the presence of the custom metadata. The plugin also supports KPI transmission for performance monitoring.

Properties

Property	Type	Default	Description
silent	boolean	FALSE	If TRUE, suppresses verbose output.
transmit	boolean	FALSE	If TRUE, enables KPI transmission.
dump-data	boolean	FALSE	If TRUE, dumps the contents of the output buffer to /tmp/ for debugging purposes.

Usage

The simaaimetaparser plugin is used within a GStreamer pipeline. It takes a buffer as input and produces a buffer as output, with updated metadata. The input buffer’s format is not restricted by the parser.

Example gst-launch-1.0 snippet:

gst-launch-1.0 filesrc location=input.h264 ! h264parse ! simaaimetaparser ! fakesink

In this example, filesrc reads an H.264 video file, h264parse parses it, simaaimetaparser processes the metadata, and fakesink consumes the result. Replace input.h264 with your input file.

Installation

To install the simaaimetaparser plugin, copy the plugin library from /usr/local/simaai/plugin_zoo/gst-simaai-plugins-base/gst/ into your project’s plugins/ folder.

Integration into GStreamer Pipeline

The simaaimetaparser plugin acts as a transformation element in a GStreamer pipeline. It sits between elements that produce buffers containing metadata and elements that consume those buffers. The plugin expects input buffers to contain metadata and will extract information such as frame IDs, timestamps and buffer IDs, either from a custom GStreamer metadata structure or from the buffer header. After processing, it attaches updated metadata to the output buffer and passes the buffer downstream in the pipeline.