Loading matrices during DVD2SVCD pass

[herineth]

Hi,

first a word to the DVD2SVCD maker: YOU ARE GOD! This tool rulez so much.

My question:
I use different matrices with CCE via the patcher. I read that the patcher does not write back the matrices into the video stream if patched. Therefore I usually loaded the matrices into bbMPEG while muxing/cutting. With DVD2MPEG I can't do this since the process is automated.

Can i somehow force bbMPEG to use my matrices during DVD2SVCD mux/split pass (I tried to laod bbmpeg manually, loading the matrices and setting as default - but the setting was gone in the dvd2svcd pass) ??? Please help!

If this is not possible at all it would be extremly _fantastic_ to have input-fields on the bbmpeg tag to load matrices (maybe an Matrices button that opens a dialog with two input lines where I can load the matrices).

Another one: Crash-recovery.
Nice feature. Would be cool to selectively choose the stages that should be performed after a crash. I.e. I had the problem that the audio was out of synch during resampling error (sampled 44,1 to 48). I had do mux it by hand. I'd love to just select the stages i want to redo i.e.:

- Audio extracting
- Audio encoding
- CDImage

Then DVD2SVCD does only the other stages (i.e. Video Encoding) if its really requried (file corrupt/modified i.e.).

Ah a note: The CDimage build stage is missing in the crash recovery !?

That's all for now.

Keep rocking and tnx for the great program

Herineth

[Rocky]

Matrices?
Maybe I'm too newbie, Can you explain to All too newbies what is that?
and how it works?

Thx.

[herineth]

Originally posted by Rocky
Matrices?
Maybe I'm too newbie, Can you explain to All too newbies what is that?
and how it works?

Thx.

In detail I can't - caus I dont know exactly. Look up the MPEG-2 specs for this, there's plenty of information around or seach this forum.

What I can tell you -from my humble newbie perspective- is: The matrices describe how the images and encoded. Therefore the image is devided in different 8x8 cubic areas and the matrices describe with a value how this area should be compressed in each frame. There are two types of matrices intra and non-intra. I don't know exactly what they mean and I don't wnat to tell you false things (i think intra is when the frame gets displayed and non-intra when the framge gets destrcuted or overwritten by the next frame).

However I don't know exactly. All I know for certain is that different matrices can really improve -or worsen- the quality of the encoded frames.

In general there are special purpose - the optimal matrice depends on the source. I'm still just experimenting with them to find a trade-off between good quality and "not experimenting with different matrices on each movie I encode". Time is infinte - my life not ;-)

Hope that helped you a bit

Best,
Herineth

[flash]

I have been using the patcher, but what do you mean when you say
it does not write back the matrices into the video stream.
Does it not work properly.

P.S what do you think to the different matrices that come with this patch.are thry any better, I tried cce 2.6 standard but could not compare because I had used bilinear resise.

[herineth]

> I have been using the patcher, but what do you mean when you say
> it does not write back the matrices into the video stream.
> Does it not work properly.

Well the patcher itself does work. But CCE seems not to write back the matrices to the video stream - this is suggested so that your player can use this matrices for decompressning.

I can't remember where I read it but i blieve it was somwhere in the doom9 forum. Try a search for "cce patcher matrices" or something.


> P.S what do you think to the different matrices that come with this
> patch.are thry any better, I tried cce 2.6 standard but could not
> compare because I had used bilinear resise. [/B][/QUOTE]

I tried CCE Very low that gave me not so good results. CCE 2.62 standard (that is the same as TMPEG standard, btw). Gave good results, currently I'm running the following, established in a german dvd/svcd forum:

Intra
Same as CCE 2.62 standard.

NonIntra
16 17 18 19 20 21 22 99
17 18 19 20 21 22 23 99
18 19 20 21 22 23 24 99
19 20 21 22 23 24 26 99
20 21 22 23 25 26 99 99
21 22 23 24 26 99 99 99
22 23 24 26 99 99 99 99
23 24 25 99 99 99 99 99

This seems to be a good one. In about 15hours I'll see the result ;)

bye
herineth

[flash]

Please let me know what you think of it when its finishd;)