Video Enhancer 1.9.4
September 2, 2010
It's been a while since last released version of
We've accumulated a lot of feature requests from our users and also
came up with our own ideas, so it took quite a lot of time to implement
it all. Now version 1.9.4 is finally out and here's the list changes
- YV12 mode for super resolution. All previous versions worked in RGB32
colorspace where each pixel is represented with three numbers: reg, green
and blue. However many modern video codecs work with video in YUV colorspace
where luminosity (lightness) and chrominance (color tone) are stored separately.
YV12 is one of YUV modes. In YV12 chrominance data has twice lower resolution
and for each 4 (2x2) pixels there are 4 distinct luminance values but just
single color tone value (made of 2 bytes), so 6 bytes encode 4 pixels, i.e.
12 bits per pixel, hence the name. Applying super resolution to YV12 video
means much less work to do. Also, RGB super resolution internally calculated
approximate luminance for all pixels - it was used for motion search. In YV12
we already have this data, so that step is just eliminated. Now when VE sees
that source video can be decoded to YV12 and super resolution is the first
(or the only) filter in the sequence, it then applies YV12 variant of SR
which works almost twice faster than RGB version. However VirtualDub filters
work in RGB32, so if SR is applied after some VD filter, RGB variant of SR is
used. In Options window you can disable this behavior and force using RGB in
- Scene change detection (less artifacts), mentioned in earlier blog post.
- Higher overall SR quality and speed, thanks to new in-frame upsizing
- More precise control on SR quality/speed trade-off (4 modes and a slider
to choose between quality and speed).
- Unicode, multilanguage support, easy to add translations (just add a text
- Can work with lower than normal priority - doesn't slow down other
applications even with 100% CPU load.
- Fixed conflict with nVidia drivers that caused problems in Vista and
Windows 7 when Aero was turned on (only on nVidia cards).
- Now you can easily save and load projects (sequences of filters with all
their settings). Just right click the filters box in Advanced mode.
- Some minor changes (like drag'n'dropping files to main window) and
bugfixes (e.g. placing output files in same folder in batch mode).
- Better Win7 compatibility: doesn't try to write to Program Files, uses
proper directories instead for storing its data (like list of filters).