Output Quicktime Clips Have Very Small (1 Frame) Chunks, Expensive for Playback

What steps will reproduce the problem?
1. Wrap any content in a Quicktime .mov wrapper using FFmbc.
2. Note that each chunk in the resulting Quicktime file contains only 1 frame 
(this is easily seen by looking at the 'co64' atoms).

What is the expected output? What do you see instead?
Chunks in Quicktime are intended to help optimize file access, but if each 
chunk only contains 1 frame then that doesn't help a parser very much. Apple 
FinalCut Pro typically encodes 1 chunk per 1/2 second of content, which is much 
better for helping optimize parsing. As they are currently, FFmbc-created 
Quicktime files are very resource-intensive to play.

Would be nice if FFmbc defaulted to 1/2-second chunk sizes to match FinalCut 
Pro, and/or provided a configuration option to set chunk size.

What version of the product are you using? On what operating system?
0.7-rc8 on Fedora 19 (x86)

Please provide any additional information below:
A number of our customers have encountered problems relating to very expensive 
playback of FFmbc-created content.

Original issue reported on code.google.com by benjamin...@gmail.com on 7 Nov 2014 at 11:57

purthaler / ffmbc

Output Quicktime Clips Have Very Small (1 Frame) Chunks, Expensive for Playback #191