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View Full Version : yellow pixels on the left?


Bartjess
5th August 2002, 16:25
Every movie I encode, and watch later in virtualdub, has yellow pixels on the very left. I use koepi's latest version XviD-04082002-1.exe.

Open your movie in virtualdub and zoom in to 4x the original size. Then go to some bright scene cause it is easier to see there.

If this isn't the case with your encodes - strange - it happened to doom9' encodes as well, look at http://www.doom9.org/codec3-2.htm , second scene, xvid piccie. It isn't quite fair on his pic though, since it is jpeg compressed which results in much more yellow pixels on the left. And NO koepi, it is not my or doom9's screenshot proggie ;)
To show the real effect, I will add an attachment. Zoom in on the left and watch the beautiful yellow pixel - normal pixel - yellow pixel - norml pixel - yellow pixel pattern.

Koepi
5th August 2002, 20:21
...investigating this issue, can take some hours.

Koepi
6th August 2002, 11:41
here we go, Isibaar confirmed the error:


"yes, it is a bug. The yellow line is caused by my yuv->rgb mmx
transformation code, so it's a decoder issue. A bugfix for this problem is on my todo list, however I didn't looked into it yet cause I don't consider this bug serious: As I said, it's no encoder bug, so the encoded content is ok and has no yellow line."