Bernhard Praschinger wrote: >Am I correct if I say that the HP dvd200i is a DVD+R/RW writer ? If >yes read the mjpeg-howto (on SF): Section Creating DVD's.
I've done so. It uses dd to write to a DVD?? WHOA!!!! :-) But it just worked; I have my first chaptered DVD-video. Thanks a bazillion!!! >>Here's a dumb question....I'm assuming that the sequence-end/ >>sequence-begin marks produced by mpeg2enc's -S option are the same >>thing as chapter marks. Is that correct? > >Basically, yes. OK, cool. mplex generated one big file, and a warning that said "Sequence end marker found in video stream but single-segment splitting specified!" for every chapter mark. I burned it to DVD, and there were no chapters. I then hacked mplex so that -M wasn't automatically turned on by "-f 8", and burned those separate videos to one DVD; that gave me chapters, but there's a tiny audio hiccup between each track now. Pretty neat that I can burn MPEG-2 video to a DVD, and that it works in my player; as far as I can tell, that's not "standard", i.e. I think the audio is supposed to be uncompressed 48kHz PCM. Now that I can actually see my video, I have a new problem -- although most of it looks wonderful, parts of it don't look all that good! There's quite a bit of fuzziness at the boundaries between black areas and light areas (i.e. I've seen it with white and pink). It looks like the artifacts I see in the VideoCD that I made of the same LaserDisc, i.e. rather large rectangular "jaggies" along the edge. The fuzziness is not in the MJPEG version, i.e. the still-frame JPEGs don't seem to have that problem. Here's the command line that I used to generate the video: lav2yuv -v 0 -A 1:1 -P 4:3 movie.eli \ | yuvscaler -v 0 -n n -I ACTIVE_690x480+12+0 \ | mpeg2enc -v 0 -f 8 -b 5000 -B 305 -S frames.txt -V 224 \ -h -4 1 -2 1 -s -r 16 -q 4 -a 2 -F 4 -n n -o video.m2v Can anyone see anything especially broken about it? (The -B 305 was a typo, but I don't think it affects anything, especially since this is my magic hacked-up version of mpeg2enc that takes a list of frame numbers where sequence-ends should be put.) The "-q 4" is new to me; I mostly produce VideoCDs. The intention was very high quality. I almost did "-q 1" but wanted to reserve that for a later experiment. (What can I say, I want a perfect-looking DVD of my "Pink Floyd: live at Pompeii" LaserDisc, especially since I doubt that'll ever get released on DVD. :-) Thanks to all for your help! My very next step is to figure out how to contribute the changes I've made to mjpegtools. I'm gonna try the "patches" page. Steven Boswell [EMAIL PROTECTED] ------------------------------------------------------- This SF.NET email is sponsored by: Thawte.com - A 128-bit supercerts will allow you to extend the highest allowed 128 bit encryption to all your clients even if they use browsers that are limited to 40 bit encryption. Get a guide here:http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0030en _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
