Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-14 Thread Andrew Stevens
Hi Richard, I finally got the y4m from Steven and I now know what's going. Actually, I should have been able to tell you very soon just by looking at the command line but ... that's life. Anyway I've Cc: Bernhard as 'honorary question answerer and Doku whipper-in' in case something like this

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Steven M. Schultz
On Sat, 6 Dec 2003, Andrew Stevens wrote: > > Well, I just encoded on a couple different platforms the clip that > > was uploaded to me and I can't seem to reproduce the artifacting. > > Gaah just what we need. Another Heisenbug ;-) Yep - can't have life getting too boring

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Andrew Stevens
On Saturday 06 December 2003 19:48, Steven M. Schultz wrote: > On Thu, 4 Dec 2003, Richard Ellis wrote: > > Those are the artifacts, and no, they are not in the original source > > as far as I can see by playing the .avi with glav. The original > > source from the DC10+ card looks just as I would

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Steven M. Schultz
On Thu, 4 Dec 2003, Richard Ellis wrote: > Those are the artifacts, and no, they are not in the original source > as far as I can see by playing the .avi with glav. The original > source from the DC10+ card looks just as I would expect it to look, > nice and clean. Well, I just encoded

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Andrew Stevens
Hi Stevem > Possible that it's the SSE DCT that's having trouble instead of the > MMX one? The encoding I just did was on a system that doesn't > have SSE support (the old MMX vs SSE problem we've discussed in the > past) and using the current cvs version of the encoder I

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Steven M. Schultz
On Sat, 6 Dec 2003, Andrew Stevens wrote: > > If you'd still like a piece of the capture, I'll gladly push some > > stuff your way. But, in further experimenting tonight I think I've > > found the culprit. If I drop the -Q 4.0 parameter, then rc92 stops Richard uploaded a 70MB snippet

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-06 Thread Andrew Stevens
HI Richard, > If you'd still like a piece of the capture, I'll gladly push some > stuff your way. But, in further experimenting tonight I think I've > found the culprit. If I drop the -Q 4.0 parameter, then rc92 stops > producing the splotches. It looks like rc92 has a different effect > (and a

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-05 Thread Steven M. Schultz
On Fri, 5 Dec 2003, Richard Ellis wrote: > > If you'd still like a piece of the capture, I'll gladly push some > stuff your way. But, in further experimenting tonight I think I've sure - go ahead and push it to the location I mentioned. > found the culprit. If I drop the -Q 4.0 parame

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-04 Thread Richard Ellis
On Thu, Dec 04, 2003 at 04:18:36PM -0800, Steven M. Schultz wrote: > > On Thu, 4 Dec 2003, Richard Ellis wrote: > > > splotches less intense, but they are still there. If you want, I > > can lavtrans out the first 30 or 60 seconds of the capture and > > set it up > > I could take a look at it a

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-04 Thread Steven M. Schultz
On Thu, 4 Dec 2003, Richard Ellis wrote: > Those are the artifacts, and no, they are not in the original source > as far as I can see by playing the .avi with glav. The original Ah, ok - those caught my eye more than the pattern you mentioned (took a while to detect that). > If

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-04 Thread Richard Ellis
On Wed, Dec 03, 2003 at 09:39:18PM -0800, Steven M. Schultz wrote: > > On Wed, 3 Dec 2003, Richard Ellis wrote: > > > attached a small jpeg (29k) showing an example of the artifact. > > If you look to the right of the tall actor's shoulder, you can > > see very clearly what I'm talking about, it

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-03 Thread Steven M. Schultz
On Wed, 3 Dec 2003, Richard Ellis wrote: > Has anyone noticed mpeg2enc rc92 creating odd "flashing" artifacts on > what should be otherwise generally smooth color backgrounds? I've No, can't say I've seen anything like what you describe. > attached a small jpeg (29k) showing an example

Re: [Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-03 Thread Bernhard Praschinger
Hallo > Has anyone noticed mpeg2enc rc92 creating odd "flashing" artifacts on > what should be otherwise generally smooth color backgrounds? I've > attached a small jpeg (29k) showing an example of the artifact. If > you look to the right of the tall actor's shoulder, you can see very > clearly

[Mjpeg-users] Odd artifact from mpeg2enc rc92

2003-12-03 Thread Richard Ellis
Has anyone noticed mpeg2enc rc92 creating odd "flashing" artifacts on what should be otherwise generally smooth color backgrounds? I've attached a small jpeg (29k) showing an example of the artifact. If you look to the right of the tall actor's shoulder, you can see very clearly what I'm talking