mp4

Easily create animated mp4s.

Intended as a drop-in alternative for the excellent gif function by Chad A. Greene, with the main aim of reducing file size when many animations are included in a PowerPoint presentation. Function is designed to allow quick creation of animations in MPEG-4 file format.

The format has the limitation that there's no easy way to loop infinitely as gifs can, but this can be overcome by either (1) Repeating the frames a large number of times (at the cost of increased file size); or (2) Looping the video within the playback settings of PowerPoint.

Example useage:

t = linspace(0, 2.*pi, 128);
for tCount = 1 : length(t)
    figure(1); plot( t, sin(t - t(tCount)) ); drawnow();
    if tCount == 1
        mp4( 'test', 'DelayTime', 1./10 );
    else
        mp4();
    end
end
mp4('close')