GStreamer - ZED Demux

The ZED Demux, zeddemux GStreamer element, allows separation of a single ZED composite stream (RGB Left + RGB Right, or RGB Left + Depth) and creates two separate streams. A third stream is created for metadata if requested.

The zeddemux creates three sink pads:

src_left: left color camera stream
src_aux: right color camera stream or 16-bit depth stream (see is-depth parameter)
src_data: metadata stream (see stream-data parameter)

Properties #

Property	Meaning	Flags	Type	Range	Default
is-depth	Aux source is GRAY16 depth	readable, writable	Boolean	true, false	true
stream-data	Enable binary data streaming on `src_data` pad	readable, writable	Boolean	true, false	false

Example pipelines #

Split the stereo couple and display single streams #

Following a simple pipeline to display on the screen the Left and Right color streams in two different windows:

gst-launch-1.0 zedsrc stream-type=2 ! zeddemux is-depth=false name=demux \
 demux.src_left ! queue ! autovideoconvert ! fpsdisplaysink \
 demux.src_aux ! queue ! autovideoconvert ! fpsdisplaysink

Split the RGB/Left synchronized stream and display single streams #

The same pipeline of the previous example can be used to display left camera stream and Depth stream in separate windows by simply selecting the stream-type 4 and using the default properties of zeddemux

gst-launch-1.0 zedsrc stream-type=4 ! zeddemux name=demux \
 demux.src_left ! queue ! autovideoconvert ! fpsdisplaysink \
 demux.src_aux ! queue ! autovideoconvert ! fpsdisplaysink

For an example of how to use the stream-data option please refer to the documentation of the zeddatacsvsink element