Video of two frames with aspect ratio 4:3: frame 1 is a 2x2 black and white rectangular checkerboard pattern; frame 2 is frame 1 reversed. This OGV file is intentionally made at 64 pixels wide by 48 pixels high in order to test media players. The video should play frame 1 for one second and then frame 2 for one second. Each rectangle should appear completely black or completely white. The ffmpeg2theora command used to convert the AVI to this OGV file was:
<a href="//commons.wikimedia.org/wiki/User:84user" title="User:84user">84user</a>
self made in IrfanView 4.23, VirtualDub 1.9.3 and ffmpeg2theora-0.25