For a specified hieght does Gstreamer pipeline automatically compute width of frame

[Nicolas Dufresne]

Le jeudi 06 juin 2019 à 12:16 +0530, Raghu Msrp a écrit :
> Hi All.
> 
> Just curious to know if only height of the frame is specified in gstreamer pipeline, does gstreamer compute width automatically. My frame size is height 1280, width =720. But If don't specify width =720, will gstreamer know the width will be always 720

It will pick a supported width for the height based on the caps
intersection. This happens at the source, this is often called
"fixate".

> 
> gst-launch-1.0 nvcamerasrc sensor-id=0  ! queue !
> 'video/x-raw(memory:NVMM), height=1280, format=NV12' ! omxh264enc
> bitrate=3000000 control-rate=2  ! 'video/x-h264, streamformat=(string)byte-stream' ! h264parse 
> 
> Appreciate your help.
> 
> Regards
> Raghu
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> gstreamer-devel at lists.freedesktop.org
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