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 property)
src_left: monocular color camera stream (see is-mono 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

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 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 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