jerky video

[safa vakili]

Hello buddies,

I am testing this pipeline:

v2l4src ! videorate ! filter ! x264enc ! ffdec_h264 ! ffmpegcolorspace ! autovideosink

but the play back is so jerky (about 1 frame per 2 sec).
It will be highly appreciated if anybody can help me?

For filter: framerate=20/1,
For encoder quantizer=24.

Thank you in advance.

Safa
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