[theora] ffmpeg2theora: issue converting from a png image list

[ogg.k.ogg.k at googlemail.com]

> ffmpeg2theora-0.24.linux32.bin img-%03d.png -o output.ogv
> Input #0, image2, from 'img-%03d.png':
>   Duration: 00:00:12.00, start: 0.000000, bitrate: N/A
>     Stream #0.0: Video: png, yuv420p, 1280x720, 25 tbr, 25 tbn, 25 tbc
>   Resize: 1280x720
> Segmentation fault

Can you try again with the latest svn ?
It works for me, and I'd fixed a crash a month or two ago that might
well be this one.