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View Full Version : Which filters to use for DV-> SVCD


hoops10
13th May 2002, 19:41
I captured my DV video/audio using Ulead and outputted the .avi as type-2 avi (using the Panasonic DV codec). I then frameserve from Avisynth to CCE using a very basic script (mpeg2dec, avisource, wavsource, BicubicResize). The final svcd is very blurry and not very good. My question is are there any filters I can add in Avisynth to get rid of the blurriness and increase the visual quality? If so, what are the filters and/or settings to do this? Thanks.

Pko
14th May 2002, 00:32
The source is probably interlaced... try loading decomb.dll and using fielddeinterlace() previous to any resizing.

Since the input is not mpeg2, you do not need mpeg2dec unless you are using other filters included in the DLL.

To increase sharpness there are a few filters, I do not use them so I cannot give you any help here, but searching in the forum will doubtless provide you with more information (do not search for "DV" content, since I have seen very few posts about that, look for "sharp" or "blur" or "smooth" and there will probably be much more hits)

hoops10
14th May 2002, 01:16
@pko

Do I have to deinterlace it when making an svcd? Or can I leave it interlaced since it will be viewed on tv (thru a stand-alone dvd player)?

vidiot
14th May 2002, 15:21
:)
No you don´t have to deinterlace.
But be sure to save your Projekt (ULEAD MSP 6?) with FieldOrder B
and encode in TMPEG with Field Order B.

Otherwise your pictures are stuttering or your picture is fine but "running-texts" looks kind of disorted...

Why reszise?
I made my XSVCD´s in the "mb1-way" (look at the ultimate board for further information -> but .... it´s german)
That means: resolution 720 x 576 (PAL) and average datarate ~ 5000 kbit/s and special matrixes...

(Do i have to mention that my DVD Player has no problems with that?)

You can author this stream later for DVD and burn it that way...

Harald

hoops10
14th May 2002, 18:51
@vidiot

I am making ntsc svcd. I am also using CCE to get the best quality. Would I be able to do what you said using Ulead (BTW, im using ver 4.0), Avisynth and CCE?

vidiot
14th May 2002, 20:45
Hello hoops10,

yes I think you´ll be able to do that even with Video Studio.
I use Media Studio LE (bundled with my firewire card).

The main thing is: -Do not resize! (Your Player must support XSVCD!)
-Keep average bitrate high (~5000)
-Keep GOP closed and not longer than 15 Elements (to keep DVD Standard)

Hope your Player support this- This is somewhat in between SVCD and MiniDVD (while the bitrate is just DVD (max 9800)).

The encoder (CCE) is just fine - but at those bitrates with the special matrixes the picture quality with TMPenc is slighly better,
while the encoding time is considerbly longer (all information from "MB1")

Even the noise that is introduced from DV Cameras at bad light (indoor) is not that problem anymore...

Have fun trying

Harald