Log in

View Full Version : X264 with fast motion(bug?)


pokkys
18th January 2005, 14:52
Let's compress this file with x264.

I get something strange.

Can someone report to x264 team?

XVID:
http://home.pchome.com.tw/star/koiori/gkk.avi

H264:
http://home.pchome.com.tw/star/koiori/kk.avi

akupenguin
18th January 2005, 19:34
Known bug. We know why it happens, but fixing it is harder.
The simplest workaround in your case is to crop off the black borders. (Make sure to crop completely, i.e. don't leave even 1 pixel of blackness at the edge.) That will also improve quality even aside from this bug.

Sirber
18th January 2005, 19:38
can you explain the bug? :)

pokkys
18th January 2005, 20:01
x264 may think border as a part of motion.

I can get rid of it in high bit-rate.

Or Cut the border hell out.

Thanks^^

I cut them all right now m(_ _)m

RadicalEd
18th January 2005, 23:39
Another sample:
Bug (http://misatokatsuragi.home.comcast.net/blocktest_1.avi)
Fix (left-edge cropped) (http://misatokatsuragi.home.comcast.net/blocktest_cropped.avi)

Sergejack
19th January 2005, 19:36
Originally posted by RadicalEd
Another sample:
Bug (http://misatokatsuragi.home.comcast.net/blocktest_1.avi)
Fix (left-edge cropped) (http://misatokatsuragi.home.comcast.net/blocktest_cropped.avi)

not totally fixed, look closelly at this mouth.

In some frame there are misplaced blocks.