Here's the first version of EME (the Emulator Movie Editor)
It's designed to be a multiple-emulator editor, but so far it only supports GMV.
You can load .GMV files up to version 9. (Later versions might work, haven't tested), make them longer or shorter, and toggle buttons on and off for each frame of all three players.
Give it a try, and any feedback is welcome! (Either here or on #nesvideos)
Rough edges:
1. Loading/Saving is a bit slow. It needs optimization, I'll see how I can speed it up
2. No copy/paste yet.
3. Doesn't remember the last-opened directory.
4. No interface to the rerecord-count part of the .GMV
5. win32 binary is bloody huge :(
You can download it here:
http://v3dmm.com/downloads/eme/eme_01_win32bin.zip (3.4mb)
http://v3dmm.com/downloads/eme/eme_01_src.zip (13k, source version)
To use the source version, you need
Python and
wxPython.
It should work on Linux and OS X, but I haven't tested it yet.