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 the following source pads:

src_left: left color camera stream, or the monocular color camera stream in monocular mode (see is-mono property)
src_aux: right color camera stream or 16-bit depth stream (see is-depth property)
src_data: metadata stream (see stream-data property)

Properties

$   is-depth            : Aux source is GRAY16 depth
$                         flags: readable, writable
$                         Boolean. Default: false
$   is-mono             : Demux is applied to ZED X One monocular stream from zedxonesrc
$                         flags: readable, writable
$                         Boolean. Default: false
$   name                : The name of the object
$                         flags: readable, writable, 0x2000
$                         String. Default: "zeddemux0"
$   parent              : The parent of the object
$                         flags: readable, writable, 0x2000
$                         Object of type "GstObject"
$   stream-data         : Enable binary data streaming on `src_data` pad
$                         flags: readable, writable
$                         Boolean. Default: false

Example pipelines

Split the stereo couple and display single streams

The following is 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 is-mono=false name=demux \
>  demux.src_left ! queue ! autovideoconvert ! fpsdisplaysink \
>  demux.src_aux ! queue ! autovideoconvert ! fpsdisplaysink

Split the RGB/Depth synchronized stream and display single streams

The same pipeline as the previous example can be used to display the left camera stream and the Depth stream in separate windows by simply selecting 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