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authorcorey <corey@b3059339-0415-0410-9bf9-f77b7e298cf2>2006-01-29 19:56:35 +0000
committercorey <corey@b3059339-0415-0410-9bf9-f77b7e298cf2>2006-01-29 19:56:35 +0000
commitcd374b05a5d602bf68aa07c38540463d8e49fa0b (patch)
treeb61b44424f4203669018898a22150414d4fb3ed8 /DOCS
parentc023deb2b40ae1d45ae6aa6edc33b4fa1f74a12c (diff)
downloadmpv-cd374b05a5d602bf68aa07c38540463d8e49fa0b.tar.bz2
mpv-cd374b05a5d602bf68aa07c38540463d8e49fa0b.tar.xz
More detailed description of brd_scale.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17507 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS')
-rw-r--r--DOCS/man/en/mplayer.19
1 files changed, 7 insertions, 2 deletions
diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index e83887ff66..8124d39e79 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -6897,8 +6897,13 @@ option brd_scale.
.TP
.B brd_scale=<0\-10>
Downscales frames for dynamic B-frame decision (default: 0).
-Speed should increase by a factor of 4 every time brd_scale is increased
-by 1.
+Each time brd_scale is increased by one, the frame dimensions are
+divided by two, which improves speed by a factor of four.
+Both dimensions of the fully downscaled frame must be even numbers, so
+brd_scale=1 requires the original dimensions to be multiples of four,
+brd_scale=2 requires multiples of eight, etc.
+In other words, the dimensions of the original frame must both be
+divisible by 2^(brd_scale+1) with no remainder.
.
.TP
.B bidir_refine=<0\-4>