BatchCCEWS v0.9.1.5 Beta and Robshot-Bach

[Amit]

Hi,

I am trying to backup DVD using BIG 3. When it comes to encoding and BatchCCEWS v0.9.1.5 beta is started its using the Robshot-Bach template to encode an Interlaced source using TFF.

This is what's happening in the logs:

* I get a message saying something like RoBa part 1 started.
* Then I get a message saying something like RoBa part 1 finished.
* I get a message saying something like RoBa part 2 started.
* Then I get a message saying something like RoBa part 2 finished.

When the part 1 started it created a VAF file and did a 1 pass OPV enocde (I think). When part 2 strated it used the VAF file created by part 1 but now its doing multipass vbr based on my number of CCE passes:confused:

I used to used DVD2SVCD to backup a DVD to SVCD using RoBa and in DVD2SVCD choosing RoBa with Tylo plugin never used to run multipass VBR. If multipass VBR has to be done in the end I did not understand what RoBa part 1 is needed for except creating a VAF file. But VAF file can be created with multipass vbr too.

I know I am totally confused as I am trying to find similarities between 2 products to understand the new BatchCCEWS tool since I now wanted to backup a DVD-9 to a DVD-5 instead of a movie only SVCD.

Any help or any pointers to some threads that talk about how BatchCCEWS RoBa works will be appreciated. I used the search with "Robshot Bach" but nothing relevant came up.

Thanks for your help.
-Amit

[influenza]

well the main difference is that if you use Roba the first pass will be variable in bitrate (completely), while if you use VBR to do the first pass it will use the average bitrate you've said to use.

[Amit]

Thanks influenza.

So if I interpret correctly no matter what option is selected in BatchCCEWS (Robshot or Mutipass VBR) in both cases the encoding will run for the number of passes I specified in DIF4U + 1 pass for VAF file if specified.

And also the Robshot method in BatchCCEWS is not the same as RoBa in DVD2SVCD. Because in DVD2SVCD RoBa gives speed and quality at the same time. I am no expert and nor am I familiar with how its implemented in Tylo.

Can I use Tylo Plugin with BatchCCEWS as it will give me quite a lot of speed improvments without losing any visual quality. Tylo's Plugin for DVD2SVCD does a 1 Pass OPV + 1 Pass VAF to complete the encode which as you know quite faster than 1 Pass OPV + <number of passed of CCE I selcted - 1> + 1 Pass VAF.

If I cannot use Tylo's Plugin with BatchCCEWS, can I do what BatchCCEWS is doing manually? That way maybe I try to comeup with someting to use Tylo and DVD2SVCD. DVD2SVCD can also do batch encoding its just that the batch files need to be setup differently than what BatchCCEWS creates for its own use.

Thanks in advance.
-Amit

[influenza]

I don't know Tylo, so I can't help you with that. trial and error I guess ;)

Of course you can do things manually. The 'only' thing batchccews does is automating your cce jobs. We all had to do it manually before those tools anyway :)

[Amit]

Can someone tell me what's the Chapter list used for in BatchCCEWS? Does BatchCCEWS creates chapter marks as part of the encode?

Thanks
-Amit

[Trahald]

What is Tylo has created with dvd2svcd should almost be called TyRoBa.. its basically a one-pass (usually) quality based encode. it has to do test passes to get a 'Q' that it can use to hopefully get the right size. If its off by a % , then it will do a second multipass to correct. Tylo was working on something that would support different programs. I am working on something that may be able to support that in the future but have been too busy to finish. I fear unless it always tried for undersized, a second pass would always be done in which case you would end up with what you currently have + you would have wasted time with the 'Q' search before hand.

As far as the chapter setting.. For scenarist (or any muxing program) to set chapter (scene) at a precise time, there must be a I-Frame/SequenceHeader at that spot in the mpeg video. What that setting does in batchccews is makes sure CCE puts a SeqHeader in that frame spot.

[Amit]

@Trahald

Thanks for your reply. The reason I asked about TyRoBa is that its encode quality turns out better than BatchCCEWS I don't know why! I tested with an Interlace Video (TV Episode Disc) and choose to keep the encoded video as interlaced. BatchCCEWS encoded video turned about to be having all kind of grainy edges around the subject. But if I use TyRoba the resulted M2V file is a bit smaller has better encode quality and encoded in less than half the time. TyRoBa did take about 20-30 minutes trying all possible combinations to find the right OPV (Q) value but the results were astonishing to me.

Its this quality and speed (speed here is kind of secondary over the quality) I am looking forward. I though if I can do some parts manually while you or others come up with an automated way will be acceptable to me at the moment.

The disc I am trying to encode is "The L Word" Its got 230 minutes of video on a dual layer disc which I am trying to put on a single layer and also keeping it interlaced (as original source is). As you know putting such a huge video on a single disc and still keeping it interlaced is kind of pushing the limits of BatchCCEWS. But for some reason TyRoBa PULLED it off with great success.

Any help in manually doing some parts of the encode atleast for this disc will be appreciated. I can than do the same for other movies which have huge video length.

Thanks for your help in advance,
-Amit