[MEncoder-users] How important are B-frames?

Reimar Döffinger Reimar.Doeffinger at gmx.de
Fri May 11 20:01:25 CEST 2012


On Fri, May 11, 2012 at 07:13:07PM +1000, Sylvester wrote:
> > On May 11, 2012 1:02 AM, "Janos Szamosfalvi" <szamosj at yahoo.com> wrote:
> >
> > B-frames are most useful when there's little movement,
> > so you may want to repeat the test with a video that
> > doesn't have lots of movement if you want to know the
> > effect of B-frames on file size.
> >
> > Gabri Nurtinaz Shally wrote:
> >
> > especially cartoon or anime.
> >
> > btw, from reported frame, there is difference. take a look at QP parameter
> > on I-frame. when the bframes set to 3, the QP value were 31, but it is
> > reduced to 32 when bframes set to 0. from this information, imo, bframes
> > save bits so that it can be used to improve quality of I-frames.
> 
> Thanks for all your input.  Perhaps I better start using FFmpeg.  A
> lot of my encodes use x264 AVC in FLVs to be played via an embedded
> Flash player in HTML.  Also, I notice from the programmers of MEncoder
> here in the mailing list, stating that it has "not been maintained for
> years".  When was the month and year it stopped please?  I'm just
> curious.

I don't remember the time someone was actively working on it.
So probably something like more than 6 years ago.
It doesn't really mean issues with it will certainly not be fixed,
but you should expect that issues it has might never be fixed any longer.


More information about the MEncoder-users mailing list