Postby DJ » 22 Feb 2007 03:01
I'm not sure that I can do better than the wiki page. But here are a few pointers.
1. iPods accept video in MP4v and audio in MP4a (AAC) in an MP4 container.
2. The source video will probably need to be resized during transcoding to fit the screen of your device and the command for resize is based on a percentage of the source size. Stream and Media Info... will show you the source size.
3. Some sources may require fps=<framrate> in the command for transcoding. This must be added manually and equal the source video. Stream and Media Info... will give you the frame rate. Also you can look at messages during the transcode for errors. The rule of thumb is that an MPEG source does not require the command, but most everything else does.
example: :sout=#transcode{vcodec=mp4v,vb=768,scale=0.5,fps=25,acodec=mp4a,ab=128,channels=2}:duplicate{dst=std{access=file,mux=mp4,dst="C:\Documents and Settings\Owner (this is you)\My Documents\My Videos\filename.mp4"}}