I was wondering what's the best option.... using CBR or CQ (or something else). If CQ, what % quality would give relatively good results?
When using CQ I am guessing that you won't know the exact file size until you are finish encoding.
+ Reply to Thread
Results 1 to 4 of 4
-
-
Unless your film is very short or the output size doesnt matter to you, cbr really shouldnt be an option.
CQ does 1 pass vbr allocation according to a % of degragation allowable. Any % setting above 60 or so and the quality generally doesnt get much better, while the filesize keeps getting larger so I wouldnt use anything above %65.
Correct it is impossible to predict the filesize with CQ. Also, since CQ works on a quality setting filesizes can vary drastically from one movie to another when using the same settings. CQ is good for speeding up your encoding process because it is only 1 pass. The best mode to encode in is 2-pass vbr. You can predict your filesize accurately meaning you can fill each disk. Also it allocates bitrate much better since its done in 2-passes. 2-pass vbr will take roughly twice as long as CQ mode however. -
also, as an example...
if u use CBR at a bitrate of 2000, it would be the same as if you use CQ_VBR with a max bitrate of 2000 and CQ of 100. Thus, the point of CQ_VBR is to not set a CQ to a really, really high value, because then it'll basically be the same as if u used CBR at the max bitrate you set for CB_VBR.
Similar Threads
-
Stream out with cbr
By brankoilke in forum Video Streaming DownloadingReplies: 0Last Post: 5th Sep 2011, 11:23 -
AVI to CBR TS
By m4Rio in forum Newbie / General discussionsReplies: 4Last Post: 12th Aug 2010, 12:04 -
cbr to vbr
By dynamix1 in forum AudioReplies: 1Last Post: 17th Mar 2009, 14:12 -
CBR vs VBR
By prl in forum Newbie / General discussionsReplies: 5Last Post: 11th Jan 2009, 18:48 -
VBR or CBR?
By dizzie in forum ffmpegX general discussionReplies: 1Last Post: 29th Jun 2007, 14:28