[Ffmpeg-cvslog] CVS: ffmpeg/libavcodec mpegvideo.c, 1.503, 1.504 mpegvideo.h, 1.234, 1.235 h263.c, 1.298, 1.299

[Michael Niedermayer]

Hi

On Mon, Jan 30, 2006 at 12:44:47AM -0800, Corey Hickey wrote:
> Michael Niedermayer CVS wrote:
> > Update of /cvsroot/ffmpeg/ffmpeg/libavcodec
> > In directory mail:/var2/tmp/cvs-serv26933
> > 
> > Modified Files:
> > 	mpegvideo.c mpegvideo.h h263.c 
> > Log Message:
> > fixing bframe strategy 2
> >   bits vs. bytes factor of 8 error
> >   16 byte offset error
> >   some other minor things
> 
> 
> This shows a large improvement over my previous vb_strategy=2 tests and
> nets a significant (but a bit varied) improvement. First, my base command:
> 
> for i in 1:turbo 2 ; do
>   mencoder matrix.vob -aid 128 -oac copy -vf \
> crop=718:356:0:60,scale=640:272 -sws 9 -ovc lavc -lavcopts \
> vcodec=mpeg4:vbitrate=581:psnr:vpass=$i:mbd=2:mv0:trell:cbp:\
> precmp=2:cmp=2:subcmp=2:predia=2:dia=2:preme=2:vme=5:v4mv:\
> last_pred=2:vqcomp=0.6:qpel:sc_factor=6 -ofps 24000/1001 -o test.avi
> done

could you rerun the vmax_b_frames=2 vb_strategy=0 and 2 brd_scale=0 without
turbo mode? the reason why that could be interresting is that the b frame
decission is done only in first pass

[...]

-- 
Michael