isomp4: Export transformation matrix

Submitted by Bastien Nocera @hadess

Link to original bug (#679522)

Description

http://people.gnome.org/~hadess/IMG_0205.MOV

QuickTime can export a tranformation matrix in the mvhd "Movie Header" atom.

See:
http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-BBCBEAIF

This could be exported, and naively interpreted by movie players to rotate the video.

Depends on

• Bug 738914