[Mjpeg-users] Re: 1.6.1.93: Bad quality

2004-01-27 Thread Ray Cole
Some observations that I did make about .93 (haven't necessarily run all of these same tests on .92, so I have no idea if this is 'different' from .92 or not, but it seems odd to me): 1) Changing from -r 16 to -r 32 produced a larger .m2v file by about 3%. I would have thought it'd be

[Mjpeg-users] Error when converting to dvd-mpeg

2004-01-27 Thread Bernhard Derks
Hi, i have a stream recorded atwo years ago: drwxr-xr-x2 bede users 520 2004-01-24 10:02 . drwxr-xr-x4 bede users 288 2003-05-03 19:23 .. -rw-r--r--1 bede users1825179784 2003-04-06 19:26 priol_amr_A01.avi -rw-r--r--1 bede users1825116128

[Mjpeg-users] Miro Dc10 (new) and Debian

2004-01-27 Thread Sbastien FRANOIS
Hello, I had promised Ronald I'd write a small guide for using this driver under Debian, so here it is : I'd like to be published because some people can probably find it useful, please append a nospam- to my email address if you decide to put it somewhere. I didn't know if you used sgml so I

Re: [Mjpeg-users] lav2yuv input.avi | yuvplay = green and broken

2004-01-27 Thread Bernhard Praschinger
Hallo I am trying to make a VCD from a DV tape I recorded from TV using a Sony DCR-PC104E. I'm in PAL country :). I'm using kino to grab the movie, and I save it as a DV type 2 .avi file. When I view this file using xine, it looks ok. When I use the following pipe, I get

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

Re: [Mjpeg-users] y4mspatialfilter

2004-01-27 Thread Andrew Stevens
Hi Ronald, As soon as the release is out I'll add y4mspatialfilter - unless there's a demand to do it now. Don't add it, I've seen enough changes for now. I've noticed the small change in the ratecontroller in mpeg2enc - does it require a new RC or are we ready for an actual

Re: [Mjpeg-users] Dropped sound sequences

2004-01-27 Thread James Finnall
Hello Steven, YHaaa! I have an music audio slide show working on BOTH of my dvd players now! The script I used for the video sequence is below. I think the key elements was the -E-20 and -G12. I know I do not understand why though. The -G12 forces 12 frames per group of pictures. But

Re: [Mjpeg-users] Re: 1.6.1.93: Bad quality

2004-01-27 Thread Andrew Stevens
On Saturday 24 January 2004 06:18, Ray Cole wrote: I was able to confirm it is the default of '-R 0' that was causing poor quality. If I use '-R 0' on 1.6.1.92 I get the same flood of artifacts that I get with 1.6.1.93. -- Ray Hmmm very odd. Do you have a short Test-sequence you can

Re: [Mjpeg-users] Re: 1.6.1.93: Bad quality

2004-01-27 Thread Andrew Stevens
Hi Ray, I tried encoding a fairly noisy, interlaced, captured video to simulate a DV source.First with and without yuvdenoise (default settings). I found I was getting visible block artefacts with yuvdenoise on static image components but not with just mpeg2enc. Looks like it something

Re: [Mjpeg-users] Creating a loop?

2004-01-27 Thread Andrew Stevens
Hi Steven, cat video.m2v video2.m2v ; cat video.m2v video2.m2v mv video2.m2v video.m2v mplex -f 8 audio.m2a video.m2v -o output.mpg I think if I see cat used with MPEG-2 files one more time I'll scream. Actually, contactenating a MPEG-2 video elementary stream (an .m2v)

Re: [Mjpeg-users] Vertical stripes

2004-01-27 Thread Thomas Börkel
HI! Sorry to reply on the list, but your host ist blacklisted, so I cannot send email to you. I tried to use some automatic guesses from y4mscaler, but they did not do what's IMHO right. Example: I have an NTSC AVI with 640x352 16:9. I want to transcode it to MPEG2 NTSC 4:3 (720x480). According

Re: [Mjpeg-users] Re: 1.6.1.93: Bad quality

2004-01-27 Thread Steven M. Schultz
On Tue, 27 Jan 2004, Andrew Stevens wrote: Hi Ray, I tried encoding a fairly noisy, interlaced, captured video to simulate a DV source.First with and without yuvdenoise (default settings). I found I was getting visible block artefacts with yuvdenoise on static image components but

[Mjpeg-users] audio bitrate for DVD

2004-01-27 Thread E.Chalaron
Hi there I have burnt a couple of DVDs with various audio bitrates (96,128,224) in mp2. Some are misbehaving, jumping frames and so. -b 8000 is used with -f 8 for the video, along with -V for mplex -r 48000 as sampling freq. Funny enough the 96 is misbehaving more than the others. However I

Re: [Mjpeg-users] Error when converting to dvd-mpeg

2004-01-27 Thread Bernhard Praschinger
Hallo For some strange reason I just got your mail. :-/ Seem's that I start hating my provider because the mailserver seems to work 5 mintues every hour . I want to create a DVD-compliant mpeg-file, (i use dvdauthor), and i tried with lav2yuv priol_amr.eli | yuvdenoise -F -l 2| mpeg2enc

Re: [Mjpeg-users] Re: 1.6.1.93: Bad quality

2004-01-27 Thread Ray Cole
The material is at least not visibly noisy. I only denoise using yuvdenoise in 'fast' mode to help lower the bitrate just a hair to catch some of the noise that isn't necessarily visible. Hmmm...as for a sample, I should be able to get a clip to you over the next day or two. I no longer have

Re: [Mjpeg-users] Vertical stripes

2004-01-27 Thread scholnik
(Hmm... I wonder if there is something beneficial to the cubic-esque gradual taper, versus blurring/noise-reduction via lowering the cutoff frequency of an ideally sharp low-pass filter Just musing to myself.) In terms of visual appeal, that's probably an empirical question. But in

[Mjpeg-users] How to scale an avi with aspect 4:3 using y4mscaler ?

2004-01-27 Thread romildo
Hi. I want to scale an AVI movie with frame size 544x304 and aspect ratio 4:3 using y4mscaler, in order to produce a SVCD. Playing the movie with mplayer: $ mplayer movie.avi without telling the aspect ratio, gives a flattened image where everything looks fatter. Adding the option -aspect 4:3

Re: [Mjpeg-users] DVD frame rate

2004-01-27 Thread Steven M. Schultz
On Wed, 28 Jan 2004, E.Chalaron wrote: Regarding frame rates for DVD, do I have to comply with NTSC or PAL frame rate or is it possible to use 20,18, 16 fps without the standalone DVD player going mad ? or mplex refusing mplexing MPEG-2 allows from 23.976 (24000/1001),

Re: [Mjpeg-users] audio bitrate for DVD

2004-01-27 Thread Steven M. Schultz
On Mon, 26 Jan 2004, E.Chalaron wrote: I have burnt a couple of DVDs with various audio bitrates (96,128,224) in mp2. Some are misbehaving, jumping frames and so. But not all are misbehaving? -b 8000 is used with -f 8 for the video, along with -V for mplex -r 48000 as sampling

Re: [Mjpeg-users] DVD frame rate

2004-01-27 Thread E.Chalaron
Hi Steven Coded frame rates of 24 fps progressive from film, Yes if the movie was shot at 24 fps which is not always the case.. Super 8 mm, 8 mm are very often at 18 fps If you reshoot each frame individually in a telecine machine as ppm files to an mpeg2 file then you and end up