BadReligionPR used our news submit to tell us
that a new DivX and DivX Pro version has been released yesterday.
According to the DivX.com website this is the biggest improvement ever, even
bigger than the jump from DivX 4.1.2 to DivX 5.0. Besides the new DivX version a
new DivX Player version has also been released yesterday which is included in
DivX 5.1 or available as separate download. Here's the changelog for DivX 5.1 (the changelog for
the Pro version can be found here ):
 DivX v5.1 New:
- Added a new high-quality psychovisual
mode that includes the following features:
- Texture cortex masking and rate
distortion algorithm
- Hybrid mode (with texture cortex
masking)
- peed optimization
- Chroma operation (this option is not
enabled by default for performance reasons; to enable it, create an
empty file in C: called "DivxPvShapingChroma.txt" for "fast" mode and
"DivxPvSimpleChroma.txt" for slow mode; testing shows only 1-2% gains
in JND tests)
The decoder has been rearchitected and
is now 10 to 30% faster on all CPU platforms.
The decoder now supports automatic
post-processing during video playback.
Added new features to the rate control
modes of the encoder, including:
- A complexity vector log
file
- An API that allows real-time control
of rate control
- An API that allows forced I-frame
insertion
Improved:
- Redesigned encoder GUI. The new GUI is
more accessible and simplifies overall usage.
- DivX 3 compatibility. (There were no
problems detected on any of the more than 60 hours of test
content.)
- Performance of Nth Pass strategy
planning performance.
Fixed:
- A bug that caused the quantizer to
overshoot the bitrate following a transition to a complex
scene.
- A bug that limited the interframe
change in quantizer to the ideal quantizer or plus or minus
2.
- A bug in RGB32 to YUV conversion on
Pentium 4 machines.
- A minor bug that affected multiple CPU
configuration.
- A bug with the rate control video
buffer verifier (VBV) that would enforce a "3 sec" max
bitrate.
- Several bugs that affected Nth Pass
encoding strategy planning.
- A bug that caused a different number
of frames to be reported between different passes in
VirtualDub.
- A bug that caused motion vector (MV)
reuse to be non-functional.
- A bug that caused problems when MV
reuse and psychovisual mode were used together.
- Several bugs with the
installer.
- A bug that caused a crash when setting
crop/resize values.
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Besides the above changelog for DivX 5.1 there is also
another changelog available for the new DivX Player which can be found
here.
Downloads and more information on the DivX codec can be found via
www.divx.com. Please use our
Video
Editing and Authoring Forum to discuss this latest
release.
Source: DivX.com
