[FFmpeg-devel] [RFC]Slightly extend the -r input option documentation

[Carl Eugen Hoyos]

Hi!

I still find it unexpected that -r != -framerate (and users agree), 
maybe attached patch helps a little.

Please comment, Carl Eugen
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diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 68fd12f..5a6e74b 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -473,6 +473,8 @@ Set frame rate (Hz value, fraction or abbreviation).
 
 As an input option, ignore any timestamps stored in the file and instead
 generate timestamps assuming constant frame rate @var{fps}.
+This is not the same as the framerate option used for some input formats 
+(it used to be the same in older versions of FFmpeg).
 
 As an output option, duplicate or drop input frames to achieve constant output
 frame rate @var{fps}.