> > Message: 6 > Date: Wed, 7 Jan 2004 09:33:22 -0800 (PST) > From: "Steven M. Schultz" <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: Re: [Mjpeg-users] Encoding large DV files to mpeg-1 and mpeg-2
> > I picked up smilutils-0.1.2 from > > http://users.pandora.be/acp/kino/smilutils.html . I compiled ffmpeg from > > CVS > > Hmmm, that's quite old. I know that 0.1.3 was released some time > ago, not sure where the download link for that is hidden though. > That was a problem. I found that smil-utils-0.3 was released. I tried that and had problem with reading after 62% of the DV file. I picked the version from CVS and it worked like a charm. Thanks for the suggestion. > > Hmmm, that might just be ./configure looking for libdv. What version > of libdv are you using? I was using libdv-0.99. I now picked up the latest from CVS. > > checking libavcodec version (build >4644)... yes Originally, it was not finding it. Now I pointed it correctly and I get the line as above and it uses libavcodec. > > I'm wondering if the large files you have are using the ODML format > or some other (non-standard) method of handling AVI files over 1GB. The large files I have are ODML format. > > > > smil2yuv -i 2 redhotridinghood.dv | \ > > ... > > > > y4mscaler -O chromass=420_MPEG2 | \ > > > > When should I use y4mscalar and when should I not use it. I want > > Always. > > If any scaling or chroma conversion is needed use y4mscaler. Thanks. I am using y4mscalar now. I am able to generate VCD successfully. But I am having problem with mpeg-2. I am using smil2yuv -i 2 ../test.avi 2>smil.err | yuvdenoise -S 0 -l1 2>yuv.err | y4mscaler -O chromass=420_MPEG2 2>y4m.err |mpeg2enc -f 8 -M 2 -E -10 -2 1 -q 6 -K kvcd -o test.m2v >mpeg2.out 2>mpeg2.err (test.avi is a 13GB ODML DV file) I find that, the final mpeg2 generated contains only 16.39 minutes of video. I generated the wav using smil2yuv -a test.wav and the audio is fine -- full 1 hour. Similarly the MPEG-1 VCD is full 1 hour. Only the mpeg2 video is not fine. I am at a loss. If I dump the output of smil2yuv to disk, I get a 52 GB file (DV file is 13 GB), so that seems about right. None of the tools report any error. [fireplace:mpeg2]$tail -3 y4m.err INFO: [y4mscaler] Frame number 107913 INFO: [y4mscaler] Frame number 107914 INFO: [y4mscaler] End of stream at frame 107914. [fireplace:mpeg2]$tail -7 mpeg2.err INFO: [mpeg2enc] Frame end 107910 B quant=6.00 total act=2769634.95788 INFO: [mpeg2enc] Frame end 107911 I quant=6.00 total act=2769810.90260 INFO: [mpeg2enc] GOP start (0 frames) INFO: [mpeg2enc] Frame end 107912 B quant=6.00 total act=2769827.68565 INFO: [mpeg2enc] Frame end 107913 B quant=6.00 total act=2769844.56189 INFO: [mpeg2enc] Guesstimated final muxed size = 803803550 I think mpeg2enc may be the problem. I do not know if I need to pass any other option. The MPEG-2 is for archival purpose, that researchers may refer to at times and would be played by software player (windows media player). I have tried just passing output of smil2yuv to mpeg2enc and got the file with the same size. For the successful VCD, I used smil2yuv test.avi | yuvscaler -O VCD | mpeg2enc -f 1 -o test.m1v Thanks, George p/s: Thanks Steven, for helping me out. ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
