======= On Tuesday 26 August 2008, Willie Wong wrote: ======= > On Tue, Aug 26, 2008 at 12:34:00PM +0400, Penguin Lover Andrew Gaydenko squawked: > > I have a very short (probably one or few frames) avi file (display > > geometry test image). How to stretch the avi in time to long period > > (say, minutes)? Software? Steps? > > If you worry just about display, look at the -fps option in mplayer, > it lets you dictate the frame rate at which the movie is played. > (Though on this box here it doesn't let you stretch to ftime more than > 1 sec....) > > A possibly better way is to (assuming your video file has really few > frames) > > mplayer -vo jpeg <videofile> > > beware that if your video file has more than a few seconds, the number > of frames can really pile up and give you a whole bunch of files.
Done, there was a single frame. > > Then you can reencode the avi thus > > mencoder "mf://000*jpg" -mf fps=<insert frame rate> -o <outputfile>.avi > -ovc lavc -lavcopts vcodec=mpeg4 > > (you can, of course, encode in the codec of your choosing). The files > 000*jpg are the default filenames for the output of the first command. > If you specified output file names in the first command, you need to > change the input filenames for the second. For fps insert a number > corresponding to what you want: for example, say you have 5 frames and > want to stretch it to 2 minutes, then set > > fps=5/120 > > (number of frames divided by the amount of total run time). > > Hope this helps, > > W Have got: videocodec: libavcodec (720x576 fourcc=34504d46 [FMP4]) [mpeg4 @ 0x11004b0]bitrate tolerance too small for bitrate Sorry, my initial message wasn't clear: the final goal is to prepare DVD to adjust a geometry of a TV with CRT. P.S. Oh, this mencoder magic... :-)
