On Sun, Apr 09, 2006 at 11:13:15AM +0200, Stefan M. Fendt wrote: > Hi Nicolas, > > >Here it is: > >http://www.europephoto.com/info/montage_video/04.yuv.tgz > > > > > So, I just played a little with your video-data. This is what I got at last: > > http://www.sfendt.de/video/test.m2v > > I hope this is the quality you expected to get from HI8 *bg*... And this > is the commandline I used: > > cat 04.yuv |\ > yuvdeinterlace -d |\ > yuvdenoise -m6,24,24 -t12,24,24 -M3,24,24 |\ > y4mspatialfilter -L 8,0.5,8,0.5 |\ > y4minterlace -i b |\ > yuvscaler -O SIZE_352x576 |\ > mpeg2enc -F3 -a2 -f8 -Kkvcd -E-5 -R2 --cbr -b9200 -r24 -41 -21 -o test.m2v > > I hope this helps... > > cu > Stefan > > BTW: I used all the CVS variants of the tools... At least for the > deinterlacer and for the denoiser I can't recommend to use the user > release anymore...
Hello Stefan, Thank you for the command line! =) Here are the things I see: - you use the CVS yuvdenoise, which I'll compile to see the difference - why do you deinterlace and reinterlace? Can't yuvdenoise and y4mspatialfilter work on interlaced material? - you use really different values than I use for y4mspatialfilter. I'll test that - my goal is to produce a DVD. Is that normal to use the SIZE_352x576 option for a DVD? - You use the kvcd matrix. I tried it, but the quality was not really good. But on yesterday, I tried the tmpgenc matrix, and that REALLY reduced the average bit-rate, without deteriorating the quality. Example when using this command line (default matrix): yuvcorrect -v 0 -T INTERLACED_BOTTOM_FIRST | yuvscaler -v 0 -I ACTIVE_702x560+8+8 -M BICUBIC | y4mspatialfilter -L 5,0.94,1,1.00 -C 4,0.94,1,1.0 | yuvmedianfilter -v 0 -t 0 | yuvdenoise -v 0 -s 1,2,2 -g 0,0,0 -t 2,3,3 | mpeg2enc -v 0 -r 32 -4 1 -2 1 -D 10 -g 6 -G 15 -q 4 -b 9200 -f 8 -o $1 When using mplex I get: INFO: [mplex] Average bit-rate : 8520400 bits/sec INFO: [mplex] Peak bit-rate : 9237200 bits/sec When using this command line (tmpgenc matrix): yuvcorrect -v 0 -T INTERLACED_BOTTOM_FIRST | yuvscaler -v 0 -I ACTIVE_702x560+8+8 -M BICUBIC | y4mspatialfilter -L 5,0.94,1,1.00 -C 4,0.94,1,1.0 | yuvmedianfilter -v 0 -t 0 | yuvdenoise -v 0 -s 1,2,2 -g 0,0,0 -t 2,3,3 | mpeg2enc -v 0 -K tmpgenc -r 32 -4 1 -2 1 -D 10 -E 10 -g 6 -G 15 -q 5 -b 9200 -f 8 -o $1 INFO: [mplex] Average bit-rate : 7584400 bits/sec INFO: [mplex] Peak bit-rate : 9247200 bits/sec I know there are option which are set differently. That's because I made several test and changes between those 2 tests. When I used the tmpgenc matrix, I immediately noticed a REAL bitrate reduction. I assume the tmpgenc matrix encodes less noise than the default noise. Since my material is really noisy, I think the tmpgenc matrix is recommended. Stefan, for the moment, I'm still batch rendering some Cinelerra videos. I'll test some of your parameters to see the difference. I really thank you for your help! =) Nicolas. ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
