Just for info: cutting at non-I-frames stilly shaky with r8944

[fkuebler]

Probably ok now

Depends on what was the goal...  ;-)

I tested front-cutting at I frames with 3 different mp4s, and all were Ok.

But with all 3 mp4s front-cutting at P frames (I didn't dare to try B frames) is broken again: When doing so, no video is displayed at all in VLC 2.09. And the length of the front-cut mp4 jumps to 4 hours (from the original 30 minutes), apparently regardless of how long the original un-cut mp4 had been.

For one sample, I attached the according MediaInfo files for the original / cut-at-I / cut-at-P, but you can also easily test it again with my https://dl.dropboxusercontent.com/u/90792628/Maus.mp4

Shall we give up on cutting at P (or even B) frames?