Damn, y4mscaler and mpeg2enc are driving me crazy... =( Thanks for pointing me to yuvdeinterlace, Steven! I now use:
nice -19 lav2yuv record_01.avi | y4mshift -n -2 | y4mscaler -I active=744x560+12+8TL -O size=744x560 -S option=sinc:6 | yuvmedianfilter -T 3 | yuvdeinterlace -f | mpeg2enc -f 0 -V 500 -c -D 10 -E -10 -q 2 -K tmpgenc -o record_01_cvs.m2v However, as you see, I had to use the -f 0 flag for mpeg2enc. If I use the -f 8 flag as I did before, I have that error: **ERROR: [mpeg2enc] Horizontal size is greater than permitted in specified Level INFO: [y4mscaler] Frame number 1 INFO: [yuvdeinterlace] Scene-Change or field-mismatch. Copying field. INFO: [y4mscaler] Frame number 2 And then it stops. Anyway, my goal is to split my original "lavrec produced" .avi with glav. Then, I encode each part with the lav2yuv... command, and I load each video part in cinelerra. I need: - a good quality - a cropped video, with no black borders The picture quality using -f 0 with mpeg2enc is very bad. I mean there're some very large green blocks on the right border of the picture. Moreover, there're some parts of the image (with a lot of details) which are "blocky" How can I crop my pictures using y4mscaler? I tried, as given by Steven: y4mscaler -O sar=src size=704x480 But that does not produced the expected result... Thanks for the help Nicolas, Paris. On Wed, Apr 20, 2005 at 08:50:11AM -0700, Steven M. Schultz wrote: > > On Wed, 20 Apr 2005, Nicolas wrote: > > > I too don't think the problem comes from the tape. It's a good Sony > > tape, and was new when I used it. > > That type of artifacting is usually the result of temporal > filtering. > > > > If you attach the camcorder to a TV and view the tape do you see > > > trails then? If not that would say the problem is not in the > > > tape > > > or the camcorder. > > > > I don't have a TV... > > Oh, wow - you're doing video work only on a computer? If you're > producing content for viewing on a TV set you really really need > to > have at a TV set (better yet a production monitor but a regular > TV will be better than nothing). The difference between a TV > and a > computer monitor is substantial. > > > I compiled the CVS version, but I can't get it to de-interlace my > > videos... > > I think you overlooked 'yuvdeinterlace' ;) > > My preference is never to deinterlace at encoding time - it's a > lossy process that can introduce artifacts. If you really want > deinterlacing it usally can be done in the playback software > (vlc, > mplayer, etc). > > > nice -19 lav2yuv 200503_Courses_Magny_Cours_01.avi | y4mshift -n -2 > > | > > y4mscaler -I active=744x560+12+8TL -O preset=DVD -S option=sinc:6 | > > yuvmedianfilter -T 3 | yuvdenoise -F | mpeg2enc -f 8 -c -D 10 -E -10 > > -q > > 2 -K tmpgenc -o 200503_Courses_Magny_Cours_01.m2v > > > > Moreover, I can't crop the image as I did in the old 0.6.2 > > version... =( > > Sure you can. y4mscaler will crop very nicely. > > When creating DVDs I use the cropped D1 frame size (704x480) > instead > of the larger 720x480. How do you get y4mscaler to do that? > Easy: > > y4mscaler -O sar=src -O size=704x480 > > Can't get much easier than that. Can you? ;) > > > I would like to keep using a method similar to the one I use for the > > moment... > > Ok - but when you're ready to step up to the next level of > quality > you're at least aware of the possibilities. > > Cheers, > Steven Schultz -- --- conti / OxStOnE -------------- O ----- Z750 & Linux ----------- ._ /\_> ------- Powered -------------- (x)> (x) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
