Why is videobox/videomixer dropping frames?

wally_bkg wb666greene at gmail.com
Fri Aug 12 14:25:32 PDT 2011

Stefan Kost wrote:
> On 08/11/11 17:01, wally bkg wrote:
>> I need binocular video for an image processing application, so it
>> seemed logical to "stack" cameraR and cameraL into a single frame
>> using videobox and videomixer and then pass that into my appsink for
>> processing as a single buffer.
> Do without videobox and use sink_0:xpos and sink_0:ypos properties on
> videomixer. Maybe try to avoid the AYUV conversion, if you don't want to
> blend.
> Stefan

I like the idea but I can find any documentation about using sink_0:xpos

I tried playing with:

permuting the sink_0 & sink_1 values doesn't seem to give anything useful.

I'd like to end up with two 320x240 images stacked into a 320x480 frame in
this example.  A sample gst-launch command would be a good start but I need
to set the properties when the C code builds the pipeline. 

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