On Sun, 2010-10-10 at 06:43 +0200, Bernhard Praschinger wrote: > Hallo > > >>> I call this thing "snow" because I really cannot find another word. > >>> Sorry, I don't speak english! > >> Do you know which commands are used to encode the video ? > > Here are the default commands: > What other commands are used ? And what command do you use for encoding?
They are the actual commands used, except for the bitrates and interlace: I can get the command lines with "ps" but much easier executing kino in a terminal (it dumps a lot of lines on the terminal). > > > mpeg2enc -v 0 -f 8 -I 1 -n p -a 2 -o '/tmp/prova'.mpv > > mp2enc -v 0 -r 48000 -b 224 -o '/tmp/prova'.mp2' > > mplex -v 0 -f 8 -o '/tmp/prova'.mpeg '/tmp/prova'.mpv '/tmp/prova'.mp2' > > > > I only modify the bitrate (9000k for video, 128k for audio). Also, > > kino's options "deinterlace=none" sets -I 1 instead, and usually I don't > > deinterlace, so I set -I 0. But this is not the point, the results are > > the same. > > If you dont know the whole command line do while exporting a "ps ax" or > a similar command you should find a mpeg2enc and some other commands > that look like that: > 7868 pts/4 S+ 0:00 lav2yuv ... > 7869 pts/4 S+ 0:00 yuvscaler -I ACTIVE_540x384+0+96 > 7870 pts/4 Rl+ 0:02 mpeg2enc ... > > > >> Which version of the mjpegtools do you use ? > > 1.8.0 on Lenny > That version is very old. (About 5 years). Please update your mjpegtools > version to 1.9.0 (1,5 year old) I'll do it as soon as possible. > > >>> I can provide a very small picture that illustrate the problem, but I > >>> guess I cannot post them as an attachment. Let me know if I can, or > >>> maybe I'll send it to whoever answer. > >> Posting a image would be very helpful. If possible once the original and > >> once the encoded picture > > > > I can attach a very small picture which shows the problem not for > > people, but for the date of the tape which is usually on the bottom > > right corner: this picture makes much simpler to explain what I mean. > > > > For the original one at present I cannot provide it anymore, but I will > > try with the new tape I'm converting currently. > Thanks for the picture. That looks very strange. > That snow is not in the recorded movie you want to encode ? I must admint that, if I watch the movie directly with kino, some snow is there, but not so much, it seems. But if catch a snapshot with kino, even from adjacent frames, no snow appears in the snapshots. > > When you record to DV AVI Type 2 You get AVI Files. Please view them > with a command like that: > lav2yuv file.avi | yuvplay > It plays like a charm, no snow at all. > When you don't see the snow (noise) add all the other commands used for > encoding except mpeg2enc: > lav2yuv| file.avi | other commands | yuvplay > When you see now the snow on of the commands creates the snow. I guess that kino pipes a stream to mpeg2enc which is already filtered with some other command that introduces the snow: in fact, if I issue the following: lav2yuv /tmp/prova002.avi | mpeg2enc -v 0 -f 8 -I 1 -n p -a 2 -o '/tmp/prova.mpv' I get a video with no snow. Unfortunately, kino creates the pipe internally, so I don't know what is the command that it uses and that introduces the snow. But this way the problem is clearly identified as a kino problem, don't you think? I'll got there now. Many thanks for your kind answers! > > > auf hoffentlich bald, > > Berni the Chaos of Woodquarter > > Email: shadowl...@utanet.at > www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
