Hallo > The video was converted to mpeg2 using > lav2yuv file.mov | mpeg2enc -f 8 -q 6 -E -10 -s -c -R 2 -o file.m2v > and the final multiplex program stream put together with > mplex -V -f 8 file.mp2 file.m2v -o file.mpg > This was then mastered using dvdauthor 0.6.9, mkisofs 2.0.3 and burned using > dvd+rw-tools 5.19-1.4.9.7. > > Now to the issues. Note that we're playing back on a PAL DVD player, so > what's being produced by the player is PAL-60 from the NTSC source. PAL-60 (the same as NTSC 4.43) was made for VCR to fool the typical TV set.
If you want to do format conversation from or to NTSC you can create a correct movie using yuvfps, which changes the framrate, and yuvscaler to change the imagesize. Try to encode a sequence where you see the problems. and than encode it to the correct format. For NTSC to PAL ist goes like that: lav2yuv file.mov | yuvfps -r 25:1 | yuvscaler -O SIZE_720x576 | mpeg2enc -f 8 -o video.m2v. >From PAL to NTSC you have to replace the -r 25:1 with 30000:1001, and correct the SIZE. I think that will solve most of your problems. > I noticed that the player was reporting very high bitrates for most of the > time - usually it's above 7.4. This might just be a maximum in a given time > though so perhaps that's fine. However, at times it jumps to 8.0 and above > - I've seen 8.4 for example. I found this odd due to the specification of > "-f 8" to mpeg2enc and mplex. That should keep the video bitrate below > 7500kbps and the audio is only 320k - the total here is therefore under > 7900kbps. Either there's a lot of overhead bits I don't know about or > there's something funny going on. Note that we're not joining streams or > anything like that - the input to dvdauthor is a single mpeg file. What average and maximal bitrate did mplext print out when you have multiplexed the stream ? If it is very high you should think of lowering the quality, or using a filter. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
