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Sort out AudioTrack and VideoTrack support in Chromium #6655

Merged
merged 1 commit into from
Sep 10, 2020

Commits on Sep 8, 2020

  1. Sort out AudioTrack and VideoTrack support in Chromium

    Most of the IDL was added in June 2014 behind a flag:
    https://chromium.googlesource.com/chromium/src/+/cb9c513a764a62acd2da76e04c3e7ec3ab7e0dfa
    
    That was M37 based on the date: https://www.chromium.org/developers/calendar
    
    Note that https://storage.googleapis.com/chromium-find-releases-static/cb9.html#cb9c513a764a62acd2da76e04c3e7ec3ab7e0dfa
    claiming this was added in M45 is wrong because this change happened
    before Blink was merged into the Chromium tree.
    
    The AudioVideoTracks has never been enabled by default.
    
    The audioTrack and videoTrack attributes on SourceBuffer were added
    later, in April/March 2016, behind the same flag:
    https://chromium.googlesource.com/chromium/src/+/1b3dc5a8202a332891b6aed5d4d4521db0b26261
    https://chromium.googlesource.com/chromium/src/+/92333c0e5ca6b7768e5bcf6d41ff8fc733ebbfc1
    
    These changes were in M51:
    https://storage.googleapis.com/chromium-find-releases-static/1b3.html#1b3dc5a8202a332891b6aed5d4d4521db0b26261
    https://storage.googleapis.com/chromium-find-releases-static/923.html#92333c0e5ca6b7768e5bcf6d41ff8fc733ebbfc1
    
    The data was mirrored for Edge and Opera. Samsung Internet and WebView
    don't use flags.
    
    Fixes mdn#5781.
    foolip committed Sep 8, 2020
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