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

[Raghu Msrp]

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

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

_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

[Nicolas Dufresne-5]

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
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel