[MEncoder-users] i-frames only ... two pass?

Reimar Döffinger Reimar.Doeffinger at stud.uni-karlsruhe.de
Fri Feb 22 21:47:10 CET 2008


Hello,
On Fri, Feb 22, 2008 at 03:22:04PM -0500, Andy Civil wrote:
> Thank you. I am finding that a video with all i-frames is not very good (I think 
> this is not news to someone here). I can't get the bit rate up high enough??? I 
> ask for 20,000 kb/s but it still only compresses at 10,000 kb/s. I can see 
> macroblocks. Here is my command:

Well, have you done two-pass? The specified bitrate is rarely met during
the first pass, and certainly not with vrc_maxrate == vbitrate (actually
in this situation it is simply impossible to reach the requested
bitrate, but getting close(r) should be possible).



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