On Thu, Sep 11, 2003 at 07:44:31PM +0200, HR wrote:
[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
No statements from others included - this is a followup.
Encoding a movie with
-lavcopts vcodec=mpeg4:keyint=125:vbitrate=1802:vhq:v4mv:precmp=2:cmp=2:subcmp=2
counting the quants with a simple script I made, I get
/usr/local/bin/countquant: q=1 0.7% /usr/local/bin/countquant: q=2 40.1% /usr/local/bin/countquant: q=3 39.9% /usr/local/bin/countquant: q=4 8.1% /usr/local/bin/countquant: q=5 5.0% /usr/local/bin/countquant: q=6 3.5% /usr/local/bin/countquant: q=7 1.6% /usr/local/bin/countquant: q=8 0.4% /usr/local/bin/countquant: q=9 0.2% /usr/local/bin/countquant: q=15 0.3% /usr/local/bin/countquant: q=16 0.1% /usr/local/bin/countquant: q=25 0.5% /usr/local/bin/countquant: q=31 0.2% (dont mind if it doesnt add up exactly, rounding errors are surely plenty)
Does this mean I should decrease the resolution? If I understand other
No. Lower resolution will hurt the quality MUCH more than q=3 frames. Even constant q=3 will look very good at high resolution (since the artifacts are on very small scale). IMO the above numbers are the result of a very good encode. Rich