x264enc encoding parameters

[Ian Davidson]

I have a C program which records a video file from a camera.

The video part of the pipeline (assuming that I have transcribed it 
correctly) is

v4l2src ! queue ! videorate ! videoscale ! 
video/x-raw,format=(string)I420,width=720,height=576,framerate=(fraction)25/1 
! queue ! videoconvert ! x264enc ! mp4mux ! filesink location=foo/bar

The program works fine and the degree of compression achieved by the 
encoder is impressive. However, when there is significant movement in 
the image, there is a very obvious 'interleave effect' which remains 
visible for quite a while. I would be prepared to pay the cost of less 
aggressive compression/greater file size to improve the image quality.

I have attempted to change the behaviour of the encoder, for example by 
setting bitrate to 6000, but I have not found anything which seems to 
make any difference.

How should I go about getting better picture quality?

-- 
--
Ian Davidson

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