Hallo > I'm trying to convert a bunch of PNG files to a MJPEG video on Ubuntu > 8.04 AMD64, > (but I've compiled and installed 1.9.0rc3 just right now to see if it > fixes my problem - > it did not). > > Anyway, I have a folder full of PNG files that have 1920x1080 dimentions that > I > can convert successfully but with horrible artifacts to MPEG1: Have you tried mpeg2 ? That should work at this dimentions better. Either -f 3, oder give -f 12/13 a change.
> png2yuv -f 23.976 -j SyncFrames/PatternFrame%05d.png -I p -n 100 | > mpeg2enc -M 2 -g 1 -G 1 -a 1 --cbr -b 30000 -V 4000 -o > SyncPattern_2398fps.m1v give a command like that a try: ... | mpeg2enc -M 2 -a 3 -b 10000 -q 6 -V 1000 -f 3 -o file.m2v > The resulting quality was way too poor (probably also because of my > misunderstanding > how MPEG 1 is working and which parameters to pass). Therefore I > decided to try what > should have given me predictable results: MJPEG avi/mov file with quality > 100%. Don't use mpeg1 for that resolution. > png2yuv -f 23.976 -j SyncFrames/PatternFrame%05d.png -I p -n 100 | > yuv2lav -f q -q 100 -b 4000 -v 2 -o SyncPattern_2398fps.mov > > Unfortunately this encoding fails with the following messages: > > INFO: [png2yuv] Parsing & checking input files. > INFO: [png2yuv] Image dimensions are 1920x1080 > INFO: [png2yuv] Movie frame rate is: 23.976024 frames/second > INFO: [png2yuv] Non-interlaced/progressive frames. > INFO: [png2yuv] Frame size: 1920 x 1080 > INFO: [png2yuv] Now generating YUV4MPEG stream. > INFO: [yuv2lav] creating Quicktime output format > **ERROR: [yuv2lav] Image dimensions (1920x1080) not multiples of 16 > **ERROR: [yuv2lav] Couldn't compress YUV to JPEG > > I wonder why there would be a problem compressing a JPEG of 1920x1080 > dimentions? > Can I create a MJPEG video with 1920x1080 dimensions? Not soure about that it might be. Do you have libquiktime installed ? > Thank you very much in advance. Sorry but I was offline for quite some time. 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 the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
