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authorOliver Fromme <oliver@fromme.com>2014-07-10 19:41:08 +0200
committerMichael Niedermayer <michaelni@gmx.at>2014-07-12 17:07:14 +0200
commit699d2107bea0426dd87c94fa9a983de38f0b502d (patch)
tree349555cd55ae766ad35c437e16a78b1426e9c444 /doc
parente5eff191e490b55fc027fcd881e2ebcfe0c4b0fe (diff)
doc/encoders: Document "dvdsub workaround for some players"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'doc')
-rw-r--r--doc/encoders.texi24
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi
index 2781574a6a..ce574cff49 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -2147,3 +2147,27 @@ For the fastest encoding speed set the @option{qscale} parameter (4 is the
recommended value) and do not set a size constraint.
@c man end VIDEO ENCODERS
+
+@chapter Subtitles Encoders
+@c man begin SUBTITLES ENCODERS
+
+@section dvdsub
+
+This codec encodes the bitmap subtitle format that is used in DVDs.
+Typically they are stored in VOBSUB file pairs (*.idx + *.sub),
+and they can also be used in Matroska files.
+
+@subsection Options
+
+@table @option
+@item even_rows_fix
+When set to 1, enable a work-around that makes the number of pixel rows
+even in all subtitles. This fixes a problem with some players that
+cut off the bottom row if the number is odd. The work-around just adds
+a fully transparent row if needed. The overhead is low, typically
+one byte per subtitle on average.
+
+By default, this work-around is disabled.
+@end table
+
+@c man end SUBTITLES ENCODERS