[FFmpeg-user] Filter Guru Required - Applying ebur128 filter to stream

Liam Condron-Farnos 23liam at googlemail.com
Thu May 9 18:28:22 CEST 2013

> There's very little documentation on the ebur128 filter.
> It appears the way this works is via two pass processing.
> 1) first pass builds normalization data
> 2) second pass applies data to audio stream
> If there's an example of this somewhere, pass along the link.


'This filter takes an audio stream as input and outputs it unchanged.'

As far as I can tell, it just logs information about the audio,
without changing anything (well... it looks like it can write some
loudness-based metadata to the audio stream). There are some examples
of its usage at the documentation.

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