Hallo > I have a question about the nature of the -4 and -2 options to > mpeg2enc. As far as I know, setting them to their maximum value of 1 > basically throws more CPU time at motion detection, and thus how much of > the current frame can be copied from previous frames. Is it necessary > to do that in order to detect parts of the image that aren't moving at > all? That is, will "-4 4 -2 4" still detect all the non-moving parts of > the video? If you can detect parts that are not moving you can "copy" them from the last frame/field. And you will save bandwith, so other parts will look better becaus you have bandwith you can spend for that.
> Also, when I make DVDs, I've been interleaving the raw video, i.e. I > pass "-I 1" to yuv2lav. Is that necessary? Is it desirable? I ask > because I just realized that mpeg2enc can apparently take > non-interleaved still frames, as long as the frame height is a multiple > of 32. Interleaving means interlaced ? If the fields are interlaced you should create a interlaced video. Because else some tools (like mpeg2enc, yuvscaler, yuvdenoise) do not take care of the interlacing. The tools will produce something you do not want. If you are looking for a description how the interlacing affects the mjpeg-tools take a look in the howto section "Creating MPEG2 Videos" subsection "Encoding destination TV (interlaced) or Monitor (progressive)". auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
