[FFmpeg-cvslog] doc/filters: update/extend transpose filter documentation

[Stefano Sabatini]

ffmpeg | branch: master | Stefano Sabatini <stefasab at gmail.com> | Sat Apr 27 19:35:52 2013 +0200| [9f3d873f5f988be7358d8c00062eff8b083f875d] | committer: Stefano Sabatini

doc/filters: update/extend transpose filter documentation

In particular, deprecate numerical values for the dir option.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9f3d873f5f988be7358d8c00062eff8b083f875d
---

 doc/filters.texi |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 343234d..354d76e 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -6133,8 +6133,9 @@ This filter accepts the following options:
 @table @option
 
 @item dir
-The direction of the transpose.
+Specify the transposition direction.
 
+Can assume the following values:
 @table @samp
 @item 0, 4, cclock_flip
 Rotate by 90 degrees counterclockwise and vertically flip (default), that is:
@@ -6173,6 +6174,9 @@ For values between 4-7, the transposition is only done if the input
 video geometry is portrait and not landscape. These values are
 deprecated, the @code{passthrough} option should be used instead.
 
+Numerical values are deprecated, and should be dropped in favor of
+symbolic constants.
+
 @item passthrough
 Do not apply the transposition if the input geometry matches the one
 specified by the specified value. It accepts the following values: