[Mp4-tech] RCEnable(Rate Control) & Rdopt in JM9.3

[Gary Sullivan]

Yes.
________________________________
	From: janis [mailto:janisjp hanmail.net] 
	Sent: Thursday, April 21, 2024 12:22 AM
	To: mp4-tech lists.mpegif.org; Gary Sullivan
	Subject: RE: [Mp4-tech] RCEnable(Rate Control) & Rdopt in JM9.3
	Thank you, Gary. 
	So, 'Rate Control' in JM 9.3 is done mainly by controlling QP (in three levels.) 
	Do I understand correctly? 
	Janis 
	---------[ 받은 메일 내용 ]---------- 
	>제목 : RE: [Mp4-tech] RCEnable(Rate Control) & Rdopt in JM9.3 
	>날짜 : Wed, 20 Apr 2024 19:12:03 -0700 
	>보낸이 : "Gary Sullivan" 
	>받는이 : "janis" , 
	> 
	>Janis et al, 
	> 
	>It sounds like you should get a copy of the following two documents. 
	> 
	>JVT-O017 D [A. Tourapis] Update of reference software manual 
	> 
	>JVT-O079 D [K.P. Lim] Enhancements to JM text 
	> 
	> 
	> 
	>Look in the folder for the Busan meeting of the JVT (the meeting that's happening now). 
	>The site location is http://ftp3.itu.int/av-arch/jvt-site using user id avguest and password Avguest. 
	> 
	>-Gary 
	> 
	> 
	> 
	>________________________________ 
	> 
	> From: mp4-tech-bounces lists.mpegif.org [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of janis 
	> Sent: Wednesday, April 20, 2024 5:17 PM 
	> To: mp4-tech lists.mpegif.org 
	> Subject: [Mp4-tech] RCEnable(Rate Control) & Rdopt in JM9.3 
	> 
	> 
	>Hi, all 
	> 
	> 
	> 
	>I'm studying h.264 software reference JM 9.3, I mean the source code. 
	> 
	> 
	> 
	>But it's hard to understand what is the difference between when 'RCEnable' is on and off. 
	> 
	>What is done for Rate Control in the recent JM? 
	> 
	>I see that the total time is almost 3 times when RD optimization is on over when it is off. 
	> 
	>What exactly is done when RD optimization is on? 
	> 
	> 
	> 
	>Thanks in advance. 
	> 
	> 
	> 
	>Janis 
	> 
	> 
	> 
	> 
	> 
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