VirtualDub and BFrames.

[DarkPath]

According to the release notes for VirtualDub 1.4.10 it now "supports bframes".

What does that mean exactly? In what way didnt VirtualDub 1.4.x support bframes?

I have been using the bframes option in Divx5 since it came out. It does seem to make a difference in file sizes. Will that change? And should I re-encode old movies?

D.

[Klumsy]

afaik, with 1.4.9 b-frames were not supported by vd. so there was kinda workaround in the DivX5.0 codec itself. there was a fixed amount of b-frames that were cached in the codec itself and then written to the file. for every p-frame there is one b-frame like:

IPBPBPBPBPBPBPBPBPBPBPBPBPBP etc.

Now it should be possible to do as many b-frames as needed.

[gldblade]

In addition, in order for DivX 5 to reach the next frame, it had to write junk frames to the output file. It no longer has to do this.

[DarkPath]

So does that mean it will now encode faster or smaller? Any visual differences?