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.

 

Go Back   Doom9's Forum > Video Encoding > MPEG-4 AVC / H.264

Reply
 
Thread Tools Search this Thread Display Modes
Old 27th February 2021, 13:25   #1  |  Link
Albert6677
Registered User
 
Join Date: Jan 2021
Posts: 2
Does x264 have the algorithm about deciding the inital qp?

I have found that there are many papers about deciding the initial qp. But after reading the source code, I did not fount anything about it in x264.

I read the paper, it says the initial qp depends on the levels of bit per pixel.

Could you please tell me whether you have found this algorithm or not?
If it doesn't, why not?

Thank you!
Albert6677 is offline   Reply With Quote
Old 5th March 2021, 09:41   #2  |  Link
imcold
pencil artist
 
imcold's Avatar
 
Join Date: Jan 2006
Location: Slovakia
Posts: 201
No idea what paper you're talking about, but initial QP very much depends on what ratecontrol mode; you probably want to search for MBtree algorithm.
__________________
fevh264 - open-source baseline h.264 encoder
imcold is offline   Reply With Quote
Reply

Tags
initial qp, rate control, x264

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 19:50.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.