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Bug 1819374 - Improve documentation about ffmpeg vendoring, adding information about header vendoring. r=alwu

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Differential Revision: https://phabricator.services.mozilla.com/D171249
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Paul Adenot 2023-03-01 15:02:18 +00:00
parent 166638e7a8
commit 99f32bee4d
1 changed files with 8 additions and 0 deletions
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8
media/ffvpx/README_MOZILLA
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@ -32,6 +32,14 @@ Then, make sure the files:
include conditional compilation directives, by probably reverting them (or
reverting and adjusting them if new codecs are added).
## Add headers for a new major ffmpeg version
If a new major version of ffmpeg is being imported in the tree, it's necessary
to vendor the new ffmpeg headers in `dom/media/platforms/ffmpeg/ffmpegxx` where
xx is the new ffmpeg major version number, and to modify the dynamic linker
wrapper in
`dom/media/platforms/dom/media/platforms/ffmpeg/{FFmpegLibWrapper.cpp,FFmpegRungtimeLinker.cpp}` with the new version and the new API in this new version.
## `config.h` generation
Configuration files are generated as follow using the configure script (here