ffmpeg | branch: master | Gyan Doshi <ffm...@gyani.pro> | Sat Mar 30 12:25:24 2019 +0530| [5282cbae61ccf75dbfbeac5b963812aac90ec8cb] | committer: Gyan Doshi
doc/filters: mention input requirements for ebur128 The filter requires input stream to have sample rate 48000 Hz and dbl fmt. Fixes #7812 > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5282cbae61ccf75dbfbeac5b963812aac90ec8cb --- doc/filters.texi | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index cf13a587ba..867607d870 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -20587,11 +20587,16 @@ ebur128=metadata=1,adrawgraph=lavfi.r128.M:min=-120:max=5 @anchor{ebur128} @section ebur128 -EBU R128 scanner filter. This filter takes an audio stream as input and outputs -it unchanged. By default, it logs a message at a frequency of 10Hz with the +EBU R128 scanner filter. This filter takes an audio stream and analyzes its loudness +level. By default, it logs a message at a frequency of 10Hz with the Momentary loudness (identified by @code{M}), Short-term loudness (@code{S}), Integrated loudness (@code{I}) and Loudness Range (@code{LRA}). +The filter can only analyze streams which have a sampling rate of 48000 Hz and whose +sample format is double-precision floating point. The input stream will be converted to +this specification, if needed. Users may need to insert aformat and/or aresample filters +after this filter to obtain the original parameters. + The filter also has a video output (see the @var{video} option) with a real time graph to observe the loudness evolution. The graphic contains the logged message mentioned above, so it is not printed anymore when this option is set, _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
