[MEncoder-users] Quicktime compatible - with ability to seek to next and previous frame quickly

[Nicolas Hesler]

Is there a way to encode Quicktime compatible mp4's with the ability to 
seek backward [quickly] one frame at a time?

Using a command line, like the following, I can create Quicktime 
compatible files, but I'm not able to seek quickly backward one frame at 
a time through the file.  It does work but it's rather slow. Seeking one 
frame at a time forward quickly works fine.

If you look at the HD Apple Trailers (like 
http://www.apple.com/trailers/touchstone/stepup2thestreets/ for 
example), you are able to seek backward and forward one frame at a time 
(using the arrow keys) and it's very responsive.  I'd like to achieve 
that same responsiveness in seeking backward one frame at a time using 
mencoder. 

Any input or suggestions?

mencoder input.avi -sws 9 -of lavf -lavfopts format=mp4 -vf 
scale=720:540,harddup -ovc x264 -x264encopts 
bitrate=4000:vbv_maxrate=5500:vbv_bufsize=3500:me=umh:subq=6:trellis=1:global_header:pass=1 
-oac faac -faacopts mpeg=4:object=2:br=160:raw -channels 2 -srate 48000 
-o output.mp4