This OGV file is intentionally made at 64 pixels wide by 48 pixels high and with a 4 bit colour palette in order to test media players. A correct media player with all post-processing disabled should play frames 1 to 25 over one second and then frames 26 to 50 for the next second and so on. Each coloured rectangle should appear completely black, completely white, completely red or completely green, and all edges should be sharp.
<a href="//commons.wikimedia.org/wiki/User:84user" title="User:84user">84user</a>
self made in IrfanView 4.23, VirtualDub 1.9.8 and ffmpeg2theora-0.26
<p>7Zip compressed archives of the source PNG files and intermediate AVI file are at <a rel="nofollow" class="external autonumber" href="http://84user.webs.com/files/caltests/check64x48bwrg16pal_4pngs.7z">[1]</a> and <a rel="nofollow" class="external autonumber" href="http://84user.webs.com/files/caltests/check64x48bwrg16pal_25fps_noa12s.avi.7z">[2]</a> (7Zip decompressor needed).
</p>
The ffmpeg2theora command used to convert the AVI to this OGV file was: