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Publisher's description of MSU Lossless Video Codec
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Lossless video codec with very good compresion MSU Lossless Video Codec - in the configuration dialog you can choose on of the codec's work modes differing by compression ratio and information loss:
Low compression - absolutely lossless mode: the data in RGB format after decompression is bitwise equal to the source data. This mode has the smallest compression ratio.
Medium compression - works in YUY2 color space. It means if you had some video in one of 16-bit YUV formats (in most cases it is so) then after decompression the data is equal to the source. And if the source data were in 24-bit RGB, then you loose on RGB to YUV conversion. This mode has much better compression ratio.
Also the codec has so called "visually lossless" modes. It means these modes allow some information losses that are visually unnoticeable giving you compression ratio boost. This is done by denoising, so all you really loose is the noise. In many cases image quality increases.
Good compression - differs from the "Medium compression" by having a slight denoising. Visually image stays the same but compression improves.
High compression - differs from the previous one by stronger denoising. Visually image quality doesn't get worse (in most cases it gets better) and the compression ratio grows further.
Custom - this mode allows to set the denoising parameters to get wanted compression/quality ratio. Parameters are set in a separate window called by the "Advanced" button.
When compressing interlaced sequences you can turn on the Compressing interlaced movie option. In some cases it improves
compression.
The Advanced window:
In Denoising area you can set denoising parameters for Custom compression mode.
Temporal denoising treshold controls the temporal part of denoising. Must be a positive integer number. The "Good compression" mode has this parameter set to 30, the "High compression" mode - 50. Spatial denoising intensity controls the spatial part of denoising. Must be a positive real number. The "Good compression" mode has this parameter set to 4, the High one - 20.
In Delta-Frames area you can set up codec's use of previous frames.
Enable Delta-Frames turns on delta-frames use. If you turn it off, all frames will be key-frames. This will cause growth of file size, so don't turn it off unless you're sure you need to.
Force Key-Frames every N frames tells codec to insert a key-frame at least once an N frames.
In Motion Estimation you can control compression speed and ratio.
You can use one of presets or set the following options manually.
FullSearch turns on use of slow but precise algorithm of motion compensation. It makes compression much slower but much better.
After DVD or DivX: turning this option on allows you to compress better video which passed through a lossy codec.
PP-frame - search in pre-previous frame. Makes compression a bit slower but better. Recommended to keep it turned on.
What's New in This Release:
- New compression algorithm implemented. Compression speed increased 1.5-2 times, decompression speed increased 2-2.5 times!
- New interface: more simple and clear.
- Can decompress files created by 0.5.x version, can compress with the old algorithm also.
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157 KB |
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| Downloads: |
10 |
Last update: |
Feb 25, 2008 |
| Size: |
157 KB |
Operating System: |
Windows All |
| Price: |
- |
License: |
Freeware |
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