-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bernhard Praschinger Sent: 19 June 2008 17:08 To: MJPEG-tools user list Subject: Re: [Mjpeg-users] mpeg2enc problem: horizontal artifacts in resulting mpeg
Hallo > I have Mandriva Linux 2008.0 x86_64 PowerPack on a Dell Inspiron 1720 > notebook with Cinelerra from the Penguin Liberation Front > cinelerra-2.1-1.svn1008.1plf2008.0 with > mjpegtools-1.9.0-0.rc2.3mdv2008.0.x86_64.rpm > > I want to render an mpeg-2 movie from my JVC Everio GZ-MG505 harddisk > camcorder to a format for DVD. I follow exactly the manual of > Cinelerra CV version 2.1: > > 20.9 Making a DVD > 20.9.1 Rendering to mpeg2 > 20.9.1.1 yuv4mpeg pipe through mpeg2enc Copy in '~/cine_render.sh > file' the following lines: > #/bin/bash > mpeg2enc -v 0 -K tmpgenc -r 16 -4 1 -2 1 -D 10 -E 10 -g 15 -G 15 -q 6 > -b 8600 -f 8 -o $1 > > I added -M 3 to improve performance on my Core 2 Duo T7300 processor. > > I played with -q (3 and 8) and -b (11000) parameters after reading the > manpage of mpeg2enc. > > The problem: there are horizontal artifacts in the rendered mpeg in a > certain scene. I can describe it as a horizontal line with the image > below the line not corresponding to the image on top of the line. No > block but line artifacts that are very disturbing. > > Did someone struggle with the same and found a solution? No, but could you put sample images somewhere online ? That makes helping much easier (If you send some to me I can put them online to mjpeg.sf.net/files) <Bert> I managed with AviDemux to pick out a 39 MB fragment from the movie of 1900 MB. But sending a 38 MB large file with email will probably not work. Can I use an ftp server to provide you the fragment? I have no website where I can make it available. It would also be interesting if the stream that comes to mpeg2enc has already that kind of problems. <Bert> When I play the 1900 MB file with Kaffeine, it looks all OK and there are no artifacts at all. But when I play it with AviDemux there is constantly a horizontal bar (on the bottom of the image over the full screen width) which is corrupt. You need to replace the mpeg2enc command with something like that: yuv2lav -q 90 -o stream_without_sound.avi And play it afterwards back with glav. <Bert> Can you please explain in more details what the intention is of these commands? Doe you have some information about the format (frame size) the JVC ? <Bert> The JVC MG-GZ505 has following properties: PAL 720x576 25fps 16x9 8,5 Mbps in best quality. <Bert> Thanks for your reply. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------ - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
