ffmpeg with h264

1. I built ffmpeg myself with x264, but it doesn't work properly.
May be I should try with Mingw in place of Cygwin.

2. I analyzed SUPER. It uses ffmpeg, which is not built with h264 support. But SUPER
can still encode files with h264, since it uses x264.exe separately. I wanted to know
the exact commands, so I replaced their ffmpeg with my ffmpeg, but SUPER didn't
even launch.

3. If you are not too keen on building ffmpeg yourself,
simply pick it from here. It works with -vcodec h264.
The latest version available here seems to be problematic.