Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
On Tue, 2003-12-16 at 12:57, Bernhard Praschinger wrote: > Could you run a few test (please). Get some frames (100-1000) as yuv > format. I gues that should be possible even with transcode. ;) > (I do not use transcode so I can't help, or get the test streams on > mjpeg.sf.net) With about 1010 fr

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
On Tue, 2003-12-16 at 12:33, Andrew Stevens wrote: > Hi all, > > First off a bit of background to the multi-threading in the current stable > branch. First off: > > - Parallelism is primarily frame-by-frame. This means that the final phases > of the encoding lock on completion of the referenc

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
On Tue, 2003-12-16 at 13:15, Richard Ellis wrote: > On Tue, Dec 16, 2003 at 12:33:52AM -0700, Slepp Lukwai wrote: > >.. It's a dual Athlon, which inherently means 266FSB (DDR 266), > > though the memory is actually Hynix PC3200 w/ timings set as low as > > they go on this board (2-2-2), which gives

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
Just a side note, I find it interesting your name is Andrew Stevens, whereby mine is Stephen Andrew (middle name). On Tue, 2003-12-16 at 14:41, Andrew Stevens wrote: > Yep. You should (in theory) get a lot closer to that with the current > MPEG_DEVEL branch mpeg2enc. However, your scaling is

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
On Tue, 2003-12-16 at 10:27, Steven M. Schultz wrote: > On Tue, 16 Dec 2003, Slepp Lukwai wrote: > > > Tried it without any options, same effect. I'm definitely seeing nowhere > > near 40% speedup, which is what boggles me. I expected at least > > reasonable gains of 25%. > > I think that h

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Slepp Lukwai
On Tue, 2003-12-16 at 23:17, Bernhard Praschinger wrote: > > -M 0: 2m 11.9s > > -M 1: 2m 10.6s, -1.3s > > -M 2: 1m 27.7s, -44.2s > > -M 3: 1m 26.5s, -45.4s > That values look much better. :-) > Now you have seen the mpeg2enc can go faster. It's like it used to be. :> I'm going to try it on a full

Re: [Mjpeg-users] -M 2/3 on SMP is slower than -M 0

2003-12-17 Thread Richard Ellis
On Tue, Dec 16, 2003 at 06:54:22PM -0700, Slepp Lukwai wrote: > As a side note, I'm also using a 200Hz timer, instead of the standard > 100Hz. Though I don't see this doing anything but making it quicker, as > it reduces latency on scheduling, while slightly increasing scheduler > overhead and cont

[Mjpeg-users] mpeg2enc encoding performance

2003-12-17 Thread Bernhard Praschinger
Hallo > On Tue, 2003-12-16 at 23:17, Bernhard Praschinger wrote: > > > -M 0: 2m 11.9s > > > -M 1: 2m 10.6s, -1.3s > > > -M 2: 1m 27.7s, -44.2s > > > -M 3: 1m 26.5s, -45.4s > > That values look much better. :-) > > Now you have seen the mpeg2enc can go faster. Sorry but I got your other mail with

[Mjpeg-users] Padding VCD image?

2003-12-17 Thread mjpeg
I have Verbatim DataLifePlus - CD-R - 700 MB - 80min media. Usually, if I use vcdimager to make a bin/cue image from, say 10 MPG1 files totalling upto 800MB, I can burn the bin/cue image just fine. But yesterday I created a bin/cue image from 35 MPEG1 files totalling 760MB and the bin file cr

Re: [Mjpeg-users] Padding VCD image?

2003-12-17 Thread Alexei Dets
Hi! On Wednesday 17 December 2003 1:42 pm, [EMAIL PROTECTED] wrote: > I posted this question on vcdhelp.com forums and got the following answer: > > --x--- > The problem of "bloating" is almost certainly because your MPEG files > weren't multiplexed in the way that VCDImager wants them. This leads

Re: [Mjpeg-users] (S)VCD to DVD w/o re-encoding?

2003-12-17 Thread Andrew Stevens
Hi all. > It's why I came up with the pgmtoy4m program. The YUV4MPEG output > from mpeg2enc was a local hack (I think Andrew did it eons ago to > an old version of mpeg2dec). Its actually *really* easy to do. I don't think mpeg2dec has changed all that much in quite a

Re: [Mjpeg-users] (S)VCD to DVD w/o re-encoding?

2003-12-17 Thread Steven M. Schultz
On Thu, 18 Dec 2003, Andrew Stevens wrote: > Its actually *really* easy to do. I don't think mpeg2dec has changed all True, especially if the scaling part is left out. No need for YUVs, YUVh, and so on. On the other hand having a forked copy of mpeg2dec to maintain

Re: [Mjpeg-users] (S)VCD to DVD w/o re-encoding?

2003-12-17 Thread Bernhard Praschinger
Hallo > > Its actually *really* easy to do. I don't think mpeg2dec has changed all > True, especially if the scaling part is left out. No need for YUVs, > YUVh, and so on. That has historic reasons, because they were written at a time no scaler (yuvscaler or Matto's scaler) exi