From: Carl Eugen Hoyos Date: Sun, 24 Aug 2014 00:49:06 +0000 (+0200) Subject: doc/ffmpeg: Try to clarify that the input option -r is not the same as -framerate. X-Git-Tag: android-x86-6.0-r1~3442^2~1 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6f78c7032479054a984431e0ecddca46374a4b31;p=android-x86%2Fexternal-ffmpeg.git doc/ffmpeg: Try to clarify that the input option -r is not the same as -framerate. --- diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index 69ffa878fb..1bca962662 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -473,6 +473,9 @@ 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 @option{-framerate} option used for some input formats +like image2 or v4l2 (it used to be the same in older versions of FFmpeg). +If in doubt use @option{-framerate} instead of the input option @option{-r}. As an output option, duplicate or drop input frames to achieve constant output frame rate @var{fps}.