> I'd say that mplayer with the mjpegtools is a combination that works. > I've tested it with some shorter streams on my equipment at home that > can play back PAL and NTSC, and they worked well.
Here's the latest sequence that I tried: # get dvd title into .vob file mplayer dvd://2 -dumpstream -dumpfile orig.vob # audio - extract raw ac3 stream mplayer -dumpaudio -dumpfile audio.ac3 orig.vob # video - de-interlace, change frame-rate, scale, encode mkfifo stream.yuv mplayer -vo yuv4mpeg -nosound -noframedrop orig.vob yuvdenoise -F <stream.yuv | \ yuvfps -r 30000:1001 | \ yuvscaler -O SIZE_720x480 | \ mpeg2enc -f 9 -q 7 -b 5000 -n n -o enc.m2v # combine audio and video mplex -f 8 -o final.vob audio.ac3 enc.m2v # create dvd iso mkdir out dvdauthor -o out final.vob dvdauthor -T -o out chmod -f 500 out/AUDIO_TS chmod -f 500 out/VIDEO_TS chmod -f 400 out/VIDEO_TS/*.* mkisofs -udf -dvd-video -o final.iso out # clean up rm stream.yuv chmod -R u+rw out rm -rf out > That is a combination that never works "-q 1 -b 5000" > In the" Creating MPEG2 Videos" is a subsection: "Which values should be > used for VBR Encoding" that tells you why it wont work. -q 7 alone > should work well. The original stream was 5000 so that's why I used that value. Using -q 7 left me with a file that is less the half the size of the original. Can I simply try lower values of -q to see if I get a larger file size and thus (presumably) higher quality? > > To mulitplex the streams you can also use mplex from the mjpegtools. Yes, I'm now using mplex now. > DVD can be interlaced :) I saw another post from Steven Shultz saying that all DVDs are interlaced. I did not re-interlace my stream and it worked fine in my DVD player. > If you want to change the framerate of a stream, I'd say that you > deinterlce it, if it is interlaced in the first step. That's seems to have fixed the jerky-ness - it's now very smooth. > > BTW: 24000:1001 is also a valid NTSC framerate you could choose. If I used this rate, would my DVD player have to do a 3:2 pulldown? Reading up on my DVD player, it's the only progressive scan player out there without a 3:2 pulldown. It's a Pioneer DV-434. Also, www.dvdrhelp.com says that my dvd player supports divx. Does this mean I can encode the stream as divx and it will (may?) work in my dvd player? divx is supposed to provide better compression, from what I've read - but there's a number of 'flavors' out there. > > I've done a compariosn. How the filesize changes depending on the > framerate you set, and how you use the tools. You find that in the > mjpeg-users mailinglist archive: > https://sourceforge.net/mailarchive/forum.php?forum_id=2356 I will check this out. The final result was a smooth flowing image (on my DVD player) with a bit less quality than the original - it's a bit blotchy in certain scenes. The original Dolby Digital (2 channel) sound was preserved. > The mail was sent on the: Wed, 26 Feb 2003. > > auf hoffentlich bald, > > Berni the Chaos of Woodquarter Many thanks for your comments and suggestions. > > Email: [EMAIL PROTECTED] > www: http://www.lysator.liu.se/~gz/bernhard -- Greg Kilfoyle <[EMAIL PROTECTED]> ------------------------------------------------------- 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
