help: dgdecode iDCT=5 cpu=6

[Plamen234]

MPEG2Source("lotr3-50.d2v", iDCT=5, cpu=6)

Am I right to use these options when I want to decode mpeg2 dvd with max quality?
If not, what would you suggest?

Thank you in advance.

[Sharktooth]

CPU parameter is MPEG-2 post processing. I usually prefer to not use it and using avisynth filters if the source needs processing.
IDCT is the IDCT algo used. I just use the Skal SSE-MMX algo, coz it's fast and practically identical to the Reference.

[Plamen234]

Thank you for your attention.

So it's not necessary to use such hard settings?
Which avisynth filter do you use (if they're not secret)?

[Video Dude]

Using cpu=6 can actually make the quality of your video worse if your source is already clean.

[Sharktooth]

Thank you for your attention.

So it's not necessary to use such hard settings?
Which avisynth filter do you use (if they're not secret)?
it depends on what defects i want to remove

[Video Dude]

From the documentation:


cpu: 0 to 6 (default: 0)

Post-Processing Quickset Options.
(Y=luma, C=chroma, H=horizontal, V=vertical)
- 0: DISABLE POST-PROCESSING
- 1: DEBLOCK_Y_H
- 2: DEBLOCK_Y_H, DEBLOCK_Y_V
- 3: DEBLOCK_Y_H, DEBLOCK_Y_V, DEBLOCK_C_H
- 4: DEBLOCK_Y_H, DEBLOCK_Y_V, DEBLOCK_C_H, DEBLOCK_C_V
- 5: DEBLOCK_Y_H, DEBLOCK_Y_V, DEBLOCK_C_H, DEBLOCK_C_V, DERING_Y
- 6: DEBLOCK_Y_H, DEBLOCK_Y_V, DEBLOCK_C_H, DEBLOCK_C_V, DERING_Y, DERING_C

[Blue_MiSfit]

I have only used MPEG-2 post processing once or twice. I imagine it would help with bitrate starved DVB caputres or very badly mastered DVDs.

Still, as Sharktooth said, AviSynth filters can generally take care of things a bit better...

~MiSfit

[Plamen234]

Thanks for your opinion.
I've also never used such pp but was currious if anyone has.