jerky video

[Derek Kulinski]

On Mon, Feb 06, 2012 at 10:01:24AM -0800, safa vakili wrote:
> 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.

I think that's normal. Encoding and decoding are CPU intensive tasks.
You can use smaller resolution and/or different speed preset on x264enc.

Derek