influenza
27th October 2003, 12:04
Lately I noticed there are quite some questions on using dif4u, docce4u and RA together. Especially the bitrate calculation and encoding seems unclear to some people.
Therefor I would like to clarify that there are more ways to do it. The guide on doom9 explains in detail, what i call method 2, so I will give somewhat less (no) attention on to that.
So basically there are two ways to do it:
1)Use Dif4u to do the bitrate calculations for you and use these calculations directly for encoding, use RA afterwards
2)Use Dif4u to demultiplex, then use RA to calculate bitrates and encode from RA. Like in the Doom9 guide.
1) In the dif4u global options check create video_ts using unused vtses (and ccedata.txt) option. There are three other important things:
*Important is the value you set for bitrate for extras. This is the bitrate your extras will get when reencoding (pretty obvious huh :) ). Don't set it too high or low. It depends on the desired quality ofcourse and the length of your main movie, menu and total number of extras. What i usually do is check the length of the main movie. is it about 1h30 and there are only a couple of extras I set the bitrate to 2300-2700 and i slightly decrease this if the main movie becomes longer/there are more extras. It's all a little bit of experience I guess.
* An other VERY important thing is the setting on the encoding method. You can set this on Global options, AVS script editor. You have the choice here between one pass VBR, Multipass and ROBA. I pick multipass, but that's op to you.
* The last important thing is the number of passes. CCE passes bottom right. You can set a number of passes for main and extras. The lower the bitrate on the extras, the more passes i would suggest.
Go about the demuxing as you usually would do. After demuxing look in your main demuxing dir. You'll find a ccedata.txt file there. In this file you'll find the name of the assets to be encoded and the encoding parameters like chosen method (1 for multipass, max/avg bitrate and number of passes.
Open docce4u and choose for import file list and load up your ccedata.txt. Now you can adjust some settings if you want and hit the encode button. You can also have docc4u start automatically from dif4u if you want (Global options-external post process using).
After encoding has finished. open up RA, browse to your demuxing directory. After RA did some loading hit the author it button and your scenarist script will be created.
2) well just as described in the doom9 guide ;).
Therefor I would like to clarify that there are more ways to do it. The guide on doom9 explains in detail, what i call method 2, so I will give somewhat less (no) attention on to that.
So basically there are two ways to do it:
1)Use Dif4u to do the bitrate calculations for you and use these calculations directly for encoding, use RA afterwards
2)Use Dif4u to demultiplex, then use RA to calculate bitrates and encode from RA. Like in the Doom9 guide.
1) In the dif4u global options check create video_ts using unused vtses (and ccedata.txt) option. There are three other important things:
*Important is the value you set for bitrate for extras. This is the bitrate your extras will get when reencoding (pretty obvious huh :) ). Don't set it too high or low. It depends on the desired quality ofcourse and the length of your main movie, menu and total number of extras. What i usually do is check the length of the main movie. is it about 1h30 and there are only a couple of extras I set the bitrate to 2300-2700 and i slightly decrease this if the main movie becomes longer/there are more extras. It's all a little bit of experience I guess.
* An other VERY important thing is the setting on the encoding method. You can set this on Global options, AVS script editor. You have the choice here between one pass VBR, Multipass and ROBA. I pick multipass, but that's op to you.
* The last important thing is the number of passes. CCE passes bottom right. You can set a number of passes for main and extras. The lower the bitrate on the extras, the more passes i would suggest.
Go about the demuxing as you usually would do. After demuxing look in your main demuxing dir. You'll find a ccedata.txt file there. In this file you'll find the name of the assets to be encoded and the encoding parameters like chosen method (1 for multipass, max/avg bitrate and number of passes.
Open docce4u and choose for import file list and load up your ccedata.txt. Now you can adjust some settings if you want and hit the encode button. You can also have docc4u start automatically from dif4u if you want (Global options-external post process using).
After encoding has finished. open up RA, browse to your demuxing directory. After RA did some loading hit the author it button and your scenarist script will be created.
2) well just as described in the doom9 guide ;).