Hello, 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: 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 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%. 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? Any help would be really appreciated. Thank you very much in advance. Sergei ------------------------------------------------------------------------- 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
