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filter-chain: add ebur128 filter

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The EBU R128 filter measures the signal and generates LUFS control
notifications for further processing.

It also adds a plugin that can convert LUFS to a gain (based on a target
LUFS).

Also add an example filter-chain to enable the EBU R128 measurement and
how to use the results to adjust the volume dynamically.

See #2286 #222 #2210
This commit is contained in:
Wim Taymans 2024-12-09 11:12:35 +01:00
parent f0f9fbb009
commit df271d13f3
6 changed files with 792 additions and 3 deletions
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4
meson_options.txt
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@ -371,3 +371,7 @@ option('doc-sysconfdir-value',
description : 'Sysconf data directory to show in documentation instead of the actual value.',
type : 'string',
value : '')
option('ebur128',
description: 'Enable code that depends on ebur128',
type: 'feature',
value: 'auto')