Fix wpt mediasource-append-buffer.html
Categories
(Core :: Audio/Video: Playback, task, P3)
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(Reporter: alwu, Unassigned)
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(Blocks 1 open bug)
Details
Per spec [1] step 2~5, media element should change its ready state during coded-frame-processing, which means the events related with the ready state, such as loadeddata, should be dispatched before source buffer's event updateend.
But we dispatch loadeddata after updateend, that is why we fail on this test [2].
However, other browsers also have this issue [3], so I'm not sure if fixing this would cause any compatible issue. Anyway, this bug is used as a reference in case we decide to fix that in the future.
[1] https://w3c.github.io/media-source/#sourcebuffer-coded-frame-processing
[2] https://searchfox.org/mozilla-central/rev/1758450798ae14492ba28b695f48143840ad6c5b/testing/web-platform/meta/media-source/mediasource-append-buffer.html.ini#4-5
[3] https://wpt.fyi/results/media-source/mediasource-append-buffer.html?label=master&label=experimental
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