Encoding a video with x264 from multiple files

[Virnec]

I'm trying to find a way of encoding a bunch of files with x264.

Basically, is if it possible to run these through a yuv4mpeg-pipe, and if so, how?
Or do I have to merge them after encoding?
The clips are captured with Fraps, and since the developers are keeping the avi 1.0 spec, each session gets split into a million files...*facepalm*

I've read that MP4Box supports concatenation of clips, but so far I haven't got the binaries working..
Also, it only supports 20 files at a time, which means a considerably longer script -- thus plan B...

Thanks!

[El Heggunte]

You could join them all via Avisynth's "(Un)Aligned Splice",
and then, feed x264 through avs2yuv. HTH.

[disturbed1]

From the top of my head -

cat file*.avi | ffmpeg -i - -s 1280x720 -f yuv4mpegpipe - | x264 $options -o out.264 - 1280x720 --fps 30000/1001

Note the - after out.264, which signifies standard in

When using standard in with x264, you need to specify the resolution and fps.