Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
7th June 2017, 06:36 | #11 | Link | ||
Registered User
Join Date: Sep 2003
Location: Berlin, Germany
Posts: 3,078
|
Thanks for the B-Frame strategy explanation, I think I understand it now. Well, one thing I still don't understand:
For the second pass b_strategy is not defined. Which means that the default b_strategy = 0 (max number of B_Frames) is used for the second pass. Does b_sensitivity have any effect at all if b_stragey is not = 1? Quote:
//EDIT// Oops, I totally overlooked this one: Quote:
I hate the FFmpeg documentation... For the GOP size the FFmpeg default is 12 which I use anyways, no matter if my target is PAL, NTSC or Pulldown. Using a GOP size of 15 or 18 I found that the slightly better compression for larger GOP sizes does not make up for the loss in quality, especially for GOP 18. It would be nice if FFmpeg had an Auto-GOP feature like HCenc... Cheers manolito Last edited by manolito; 7th June 2017 at 06:50. |
||
Thread Tools | Search this Thread |
Display Modes | |
|
|