Quality Evaluation tool conversio needed

[barry_w2]

My previous request for a quality comparison tool turned up a few possibilities, of which the most promising looks like the MSU Perceptual Video Quality Tool.

MSU (and at least one of the others) requires AVI files, and these would have to be uncompressed to allow evaluation of the original video.

As I am using DVD files this causes problems as I need to convert my DVD files to uncompressed AVI files. It looks like I can use AVIsynth to simulate the creation of this file, but it all looks very complicated and time consuming to set up. All I really want is some way of decoding DVD files to uncompressed AVIs, if necessary only extracts from the DVD files. I was just about to give up when I thought one of the helpful and knowledgeable people on this forum might know a quick and easy way of achieving this.

[manono]

Hi-

Pretty simple. Install AviSynth. Download the DGMPGDec package and stick it somewhere. Install a lossless AVI codec, preferably one that'll keep it in the YV12 colorspace. I use Lagarith. Open the vobs in DGIndex. Go File->Save Project which will give you a D2V project file when done. Create an .avs by creating a new .txt file (maybe call it Video.txt) and renaming the extension as .avs. Inside have this:

LoadPlugin("C:\Path\To\DGDecode.dll")
MPEG2Source("C:\Path\To\Video.d2v")

Adjust for the paths. Open it in VDub(Mod). Make sure Video is set for Fast Recompress. Go Video->Compression and choose your codec. Configure it if necessary. Go File->Save As and wait.