first 
you need to install a x264 decoder and this 
Matroska Splitter.exe
second
you start the 
TimeCodec.exe and open a x264 encoded file with your choice for a x264 decoder.
(The best way is to open a sample, that way it doesn't take too long. 
Set to vmr7, vmr9 or overlay mixer because null is no rendering!) 
hit start.
[*]Examples of decoders 
ffdshow, coreAVC, Cyberlink, Ateme, Nero, Elecard, Mainconcept, Moonlight, Videosoft 
[*]The most common decoders
ffdshow is open source, CoreAVC is a shareware decoder.
After Timecodec is ready 
you get something like this:
User: 44s, kernel: 3s, total: 48s, real: 50s, fps: 59.4, dfps: 56.8
[*]user     -means: application usage time
[*]kernel   -means: system usage time
[*]total    -means: total decoding time
[*]fps      -means: frames per second
[*]dfps     -means: display frames per second