Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-24 Thread Andrew Stevens
Hi all, It looks like there is, someplace, a mismatch problem lurking in the Arithmetic routines. Basically, different rounding between the (internal) decoding done in mpeg2enc for calculating the difference between the image to encode and the decoding of its predecessor and what is happening

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-10 Thread Thomas Börkel
HI! Steven M. Schultz wrote: As I wrote in another thread: I have a still example, I think, for that problem: http://www.boerkel.de/q.zip Initially, to me, that just looks like a variation on the grey blocks/splotches that always seem appear during dark scenes. I wonder if

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-10 Thread Thomas Börkel
HI! Richard Ellis wrote: What type of system (cpu) is being used? SSE, MMX, MMX-Extended, ??? P3-866. Don't know exactly, what type of extra instructions this one has. P3 class has MMX, maybe MMX-extended, and the initial implementation of SSE. If you watch the mpeg2enc startup messages, it

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-09 Thread Thomas Börkel
HI! Ray Cole wrote: I realize a sample would be worth 1GB words...but unless I pop the old processor back in place (which I hate doing because the CPU fan is so darn difficult to get off/on...I hate the clip on it...) I don't think I'm going to be able to reproduce it. As I wrote in another

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-09 Thread Steven M. Schultz
On Mon, 9 Feb 2004, [ISO-8859-1] Thomas Börkel wrote: As I wrote in another thread: I have a still example, I think, for that problem: http://www.boerkel.de/q.zip Initially, to me, that just looks like a variation on the grey blocks/splotches that always seem appear during

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-08 Thread Ray Cole
mpeg2enc -f 8 -q 5 -a 2 -g 6 -G 18 -E -10 -N 1.0 -z t -4 2 -2 2 -r 16 -o file.m2v Is it possible to have less that 200+ character lines? ;) It used to be longer :-) What are you using to do the playback? Ogle? Xine? MPlayer? Standalone player? mplayer and 2

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-02-08 Thread Steven M. Schultz
On Sun, 8 Feb 2004, Ray Cole wrote: mplayer and 2 standalone players. I haven't been able to reproduce it with other material. The part of the scene giving the problem was a wall. The wall was textured, had a lot of yellowish color to it (gee, I'm sure I'm being real descriptive here

Re: [Mjpeg-users] 1.6.1.93: Bad quality

2004-01-27 Thread Steven M. Schultz
On Fri, 23 Jan 2004, Ray Cole wrote: With the same parameters as 1.6.1.92, I'm seeing terrible quality problems. Parameters used: mpeg2enc -f 8 -q 5 -a 2 -g 6 -G 18 -E -10 -N 1.0 -z t -4 2 -2 2 -r 16 -o file.m2v Is it possible to have less that 200+ character lines? ;) I'm