Hallo > > Why ? That shouldn't matter that much. > I am using sogtware encoding since I own a Hauppauge WIN-TV (Bt878 besed) > card. Ok, that might be a problem.
> > > - Effect windows seem to work. The picture looks strange: Instead of dark > > > colours, white pixels are displayed. Loosely spoken, black is represented > > > as white while gray (and colored) tones are displayed correctly. > > > > That can be some wrong options or something like that. Could you plreas > > run LVS in th debug mode (lvs -d) so I can see what happens. > I found the problem. It is concerned with lavtools. I was recording the > fooprint using lavrec. Apparaently, it produced many pixels (at least 10% per > image) with YUV out of the spec (16<=Y<=235, 16<= u,v <= 240). Since > matteblend.flt is programmed using the exact spec, a lot of > overflow/underflow conditions appeared giving rise to the above mentioned > effects. I added some code to matteblend.flt.c in an attempt to force the > standard. This worked well, although the process became much slower. > > I heasitate to submit the code to the repository because this seems to address > a much more severe problem: Which parts of mjpeg-tools depend on the standard > being obeyed? *Where* should the constraint be enforced? For example, lavplay > works well for material out of bounds. What about mpeg2enc? That pixles are a slight problem, because they are nor allowed, but appear, because of the transmiton. There should be one or two mail from Andrew about that problem. If you only changed the matteblend.flt I think you can committ it without creating problems. I thinkt to remember that Steven also created a filter that fixes that out of range values. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
