On Thursday, February 14 2008, 09:23 (+0100), Florian Cramer wrote: > Once having owned an older Sanyo Xacti, which also used a faulty > mpeg-4 codec, I'm not too surprised. A workaround is to transcode your > file into a DV file,
Footnote to that: Encoding to DV has the disadvantage of quality loss since the video is re-compressed with another lossy codec, and blown up to PAL/NTSC resolution. If you have enough disk space - about 0.58 Gigabyte for every minute of standard resolution video -, you can easily transform your material into a raw, uncompressed YUV stream and a synchronous WAV audio file using mplayer: mplayer -ao pcm -vo yuv4mpeg SANYO.mp4 ...resulting in the files stream.yuv and audiodump.wav . You can import both files into Cinelerra (preferably after renaming them, for example to SANYO-1.yuv and SANYO-1.wav), put them into parallel video and audio tracks, edit them without quality loss, and render to a format of your choice, or another raw video/audio file to use as a high quality master for transcoding with ffmpeg or mencoder. As a matter of fact, this procedure yields the best results with _any_ type of MPEG-encoded source material since it overcomes the principle problem of editing video with inter-frame compression [more explanation of that in: http://www.bmserver.net/Down_SW/Tech_Paper/Challenge_MPEG2_Eng.pdf ] -F -- http://cramer.plaintext.cc:70 gopher://cramer.plaintext.cc _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
