[MPlayer-DOCS] [PATCH] ChangeLog updates before release

[Corey Hickey]

Jeff Clagg wrote:
> I think there are some additional decoding speed improvements that are
> worth mentioning, for instance h.264 decoding is about 20-25% faster on
> x86. Would someone mind verifying if the improvement is similar on other
> popular architectures?

time mplayer warren_miller_m1080p.mov -nosound -vo null -benchmark \
-really-quiet

user    2m23.914s

time /usr/local/src/mplayer/mplayer-old/MPlayer-1.0pre7try2/mplayer \
warren_miller_m1080p.mov -nosound -vo null -benchmark -really-quiet

user    3m58.486s

So, I'm seeing a 40% improvement on amd64 Linux.

> Additionally, there have been quite a few enhancements to libavcodec's
> encoding. Michael Niedermayer and Corey Hickey spent quite some time
> looking over tweaks to ratecontrol, scene change detection, and b-frame
> placement. Perhaps Corey could render his opinion on whether or not
> these changes belong in the ChangeLog?

Yes, if you like. Such as:

* numerous moderate improvements to MPEG-4 encoding quality

Michael and Loren have done interesting stuff to Snow, as well (in
particular all the OBMC stuff), but I haven't had a chance to test it.

-Corey