update x264's subq otion description

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21931 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2007-01-15 07:16:03 +00:00
parent f1119b5398
commit f6a850e2fa
1 changed files with 10 additions and 1 deletions

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@ -3658,7 +3658,8 @@ random differences in the achieved bitrate.
This is usually enough to be visible.
</para>
<para>
<option>subq=6</option> is the slowest, highest quality mode.
<option>subq=6</option> is slower and yields better quality at a reasonable
cost.
In comparison to <option>subq=5</option>, it usually gains 0.1-0.4 dB
global PSNR with speed costs varying from 25%-100%.
Unlike other levels of <option>subq</option>, the behavior of
@ -3670,6 +3671,14 @@ random differences in the achieved bitrate.
in low-motion scenes. Note that it is still recommended to always set
<option>bframes</option> to something other than zero (see below).
</para>
<para>
<option>subq=7</option> is the slowest, highest quality mode.
In comparison to <option>subq=6</option>, it usually gains 0.01-0.05 dB
global PSNR with speed costs varying from 15%-33%.
Since the tradeoff encoding time vs. quality is quite low, you should
only use it if you are after every bit saving and if encoding time is
not an issue.
</para>
</listitem>
<listitem>
<para>