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Video Quality Studio 0.4 RC1
post Feb 26 2005, 18:46
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Version 0.4 RC1 of Video Quality Studio was released a couple of days ago.

Download here



* Reworked VFW and DirectShow decoders. YUV (YUY2/YV12) is preferred over RGB and is converted internally to 4:4:4. This should minimise calculations and thus enhance performance greatly.
* Single precision floating-point numbers are now used instead of double precision as they provide a better balance between accuracy and speed.
* Added Structural Similarity (SSIM) Index metric. Note that it is a basic implementation and not complete with motion estimation!
* PSNR was optimised for speed and as always validated with Matlab.
* Internally re-worked GUI which should run more smoothly now.
* Added XML batch file support. For format see this example.
* Average and Standard Deviation values are written to the output.
* Misc changes.
* Known issue: Decoding of HuffYV12 (Ffdshow) videos produces bogus results when using VFW decoder!


* Transition between clips is smooth and does not display a white window.
* Additional error checking
* Added option to shuffle playlist
* Fixed bug that allows to restart the test if you abort it
* Easier to use GUI. Complete internal remake of the GUI, this should work more smoothly.
* Added option to allow different length videos. Defaults to disabled!
* Improved DirectShow support, fixes issues with broken/incomplete source filters, fixes issues with overlay with some decoders.
* Improved Avisynth support.
* You can select a range from reference videos instead of viewing the whole video.
* Results are shown after the test ends and you can save them in text or comma-separated formats.
* Tests: Save to / Load from XML files functionality.
* Playback is stopped when the test is aborted.
* Performing a test twice does not cause a crash.
* Aborting the test before playback does not cause a crash.
* Option to disable topmost style of video window.
* Other internal changes.
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