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View Full Version : Do dynamic b-frames work?


angelyote
8th February 2003, 21:47
Before I bore you with my rambling let me first say that XviD is great. It has replaced DivX for me completely. (Really, I don't even use it to decode DivX, I'd rather use ffdshow). You guys have real drive. I'm glad to be doing this as a hobby during a time when so much effort is put into making it fun.

In this thread, (drink me) (http://forum.doom9.org/showthread.php?s=&threadid=42660) Koepi mentions setting the maximum b-frames to 0 for dynamic i/p/b-frame selection. So I tried this and statreader tells me that I have 0 b-frames.

So my question is, Is this right? I'm using build 02022003-1. I'd prefer to let the codec decide where and how many b-frames it should place without my intervention. However I have no problem putting a 3 in there, I'm just testing out the options.

I realize it's an unstable build and that Koepi also mentions that putting a 0 there is really a debug option. I bring it up for 2 reasons. 1) Perhaps it's a bug and 2) if putting a 0 there is intended to generate 0 b-frames (makes sense to me) perhaps -1 isn't needed anymore to tell the codec to disable b-frames.

Dave

Teegedeck
8th February 2003, 21:54
It is only for debugging, i.e. it doesn't actually insert any b-frames.

Set B-frames to '3'. The number of B-frames in a row is always decided upon dynamically if the number is >1. Always.