ffmpeg fails with libtheora

Digging the net I found this: http://eatmytux.com/convert-to-theora-with-ffmpeg
which says that video size should be multiples of 16 for theora.

Size of the video in question is '640x360'. I copied command line from the error log, tried it on the server's command line to get the same error. Then I changed to "... -s '640x368' ..." (multiples of 16), and the command worked ok.

It looks like for libtheora caller needs to adjust the size to be multiples of 16.

This document contains suggestion on how to deal with frame sizes that are not in 16-multiples:
http://www.theora.org/doc/libtheora-1.2/structtheora__info.html

Encoded theora frames must be a multiple of 16 in width and height. To handle other frame sizes, a crop rectangle is specified in frame_height and frame_width, offset_x and * offset_y. The offset and size should still be a multiple of 2 to avoid chroma sampling shifts. Offset values in this structure are measured from the upper left of the image.

[UPDATED]
e.g. "... -s 640x360 ..." can be adjusted to "... -s 640x360 -padtop 4 -padbottom 4 ..."

I tried that on the same example as in #1 and it also works. Now to the working code patch...

Here's a patch that fixes the frame size to be multiples of 16x16 for libtheora.