Hallo JD wrote: > mjpegtools-2.0.0-1.fc16.i686 > > My question is if mpeg2enc is able to convert > mp4 videos to mpeg2 dvd format. This is how I am invoking it: > > $ mpeg2enc --no-constraints -o video_12.dvd < $PWD/Video_12.mp4 > INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION! > INFO: [mpeg2enc] SETTING SSE and MMX for TRANSFORM! > INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION! > **ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: bad header magic! > > $ file Video_12.mp4 > Video_12.mp4: ISO Media, MPEG v4 system, version 2 > > The mp4 video plays just fine using ffplay, mplayer, vlc, ...etc > on Linux.
mpeg2enc cannot transcode this way. You need some other program to generate the yuv4mpeg format, mplayer for example can do this for you. In the mjpegtools wiki is a short howto: http://sourceforge.net/apps/mediawiki/mjpeg/index.php?title=Creating_videos_from_other_sources > mkfifo stream.yuv > cat stream.yuv | mpeg2enc -f 8 -o video.m2v & > mplayer -nosound -noframedrop -vo yuv4mpeg yourfile.mp4 The thing slightly missing is the audio decoding/ encoding: > mplayer -vo null -ao pcm:fast Video_12.mp4 > cat audiodump.wav | mp2enc -r 48000 -o audio.mp2 and than mplex it together with: > mplex -f 8 audio.mp2 video.m2v -o reencoded.mpg the last step is running dvdauthor. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowl...@utanet.at www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------------ How fast is your code? 3 out of 4 devs don\\\'t know how their code performs in production. Find out how slow your code is with AppDynamics Lite. http://ad.doubleclick.net/clk;262219672;13503038;z? http://info.appdynamics.com/FreeJavaPerformanceDownload.html _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
