merge read and and in add_paeth_prediction

[ffmpeg] / doc / ffmpeg.texi

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 62282b2dd0eb658221071938c97266c20afb7d8e..62b8996f028fb4949ddbf3adfc0a0dc975b15232 100644 (file)
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -1,8 +1,8 @@
 \input texinfo @c -*- texinfo -*-
 
-@settitle FFmpeg Documentation
+@settitle ffmpeg Documentation
 @titlepage
-@center @titlefont{FFmpeg Documentation}
+@center @titlefont{ffmpeg Documentation}
 @end titlepage
 
 @top
@@ -166,7 +166,10 @@ Set the number of video frames to record.
 @item -r @var{fps}
 Set frame rate (Hz value, fraction or abbreviation), (default = 25).
 @item -s @var{size}
-Set frame size. The format is @samp{wxh} (ffserver default = 160x128, ffmpeg default = same as source).
+Set frame size. The format is @samp{wxh} (ffserver default = 160x128).
+There is no default for input streams,
+for output streams it is set by default to the size of the source stream.
+If the input file has video streams with different resolutions, the behaviour is undefined.
 The following abbreviations are recognized:
 @table @samp
 @item sqcif
@@ -230,7 +233,13 @@ The following abbreviations are recognized:
 @end table
 
 @item -aspect @var{aspect}
-Set aspect ratio (4:3, 16:9 or 1.3333, 1.7777).
+Set the video display aspect ratio specified by @var{aspect}.
+
+@var{aspect} can be a floating point number string, or a string of the
+form @var{num}:@var{den}, where @var{num} and @var{den} are the
+numerator and denominator of the aspect ratio. For example "4:3",
+"16:9", "1.3333", and "1.7777" are valid argument values.
+
 @item -croptop @var{size}
 @item -cropbottom @var{size}
 @item -cropleft @var{size}
@@ -787,7 +796,7 @@ A preset file contains a sequence of @var{option}=@var{value} pairs,
 one for each line, specifying a sequence of options which would be
 awkward to specify on the command line. Lines starting with the hash
 ('#') character are ignored and are used to provide comments. Check
-the @file{ffpresets} directory in the Libav source tree for examples.
+the @file{ffpresets} directory in the FFmpeg source tree for examples.
 
 Preset files are specified with the @code{vpre}, @code{apre},
 @code{spre}, and @code{fpre} options. The @code{fpre} option takes the
@@ -1046,14 +1055,14 @@ file to which you want to add them.
 @ignore
 
 @setfilename ffmpeg
-@settitle FFmpeg video converter
+@settitle ffmpeg video converter
 
 @c man begin SEEALSO
-ffplay(1), ffprobe(1), ffserver(1) and the Libav HTML documentation
+ffplay(1), ffprobe(1), ffserver(1) and the FFmpeg HTML documentation
 @c man end
 
 @c man begin AUTHORS
-The Libav developers
+The FFmpeg developers
 @c man end
 
 @end ignore