Combining 2 Video Streams Side by Side, Getting Choppy Results

[Ian Davidson]

I don't see any *queue* in your pipeline. A queue causes the pipeline to 
have a new thread - so all of your pipeline is one thread and is 
therefore only using one processor.  Experiment with putting a queue 
after each videoscale.

On 16/02/2021 09:02, Jim Ruxton wrote:
>
> Just discovered that putting sync=false after autovideosink solved my 
> problem.
>
> Jim
>
> On 2021-02-16 2:50 a.m., Jim Ruxton wrote:
>>
>> I am trying to combine 2 video streams. One from my laptop camera and 
>> one from an external webcam. I'm using the following pipeline and 
>> getting very choppy results. Neither my CPU or GPU seem to be working 
>> hard. Any ideas how to make this less choppy?
>>
>> *./gst-launch-1.0 v4l2src device=/dev/video**4**! videoscale ! videoconvert ! video/x-raw,format=YUY2, 
>> framerate=30/1, width=***640***, height=***480****! ****alpha********alpha=1***! videobox border-alpha=0 left=-640 ! videomixer name=Mix ! 
>> videoconvert ! autovideosink v4l2src device=/dev/video***2***! videoscale ! videoconvert ! video/x-raw, format=YUY2, 
>> framerate=30/1, width=***640***, height=***480****! ****alpha********alpha=1***! videobox border-alpha=0 right=-640 ! Mix.*
>>
>> Thanks,
>>
>> Jim
>>
>>
>
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