media.format-reader.mp4=true: Will enable the new format decoder for normal MP4
media.mediasource.format-reader.mp4=true: Will enable new format decoder for
MP4 within MSE.
Both are currently defaulted to false.
The previous setup is wacky, and can cause the notification to reach the state machine before the promise rejection, which causes us to stall intermittently. We also take the opportunity to be a bit less trigger happy when we fire it in MediaSourceReader.cpp.
The model we're moving towards is one where the MDSM can just disconnect all of its promises, send a ResetDecode down the pipe, and start doing something unrelated.
This is necessary because we're going to want to start disconnecting sample and seek requests directly from the state machine thread, and the machinery asserts that disconnection happens on the same thread as resolution.
trav90
wolfbeast
Moonchild