Under some circumstances, the MP3Demuxer is unable to calculate the buffered range which would prevent the readyState value to be recalculated. To get around this we force recalculation when the progress event is fired.
MozReview-Commit-ID: DTaxJjOX4JU
Some refactoring, clean-ups, etc.
The main change is that the can-play status is passed when diagnostics are
finally recorded. This will help when introducing different types of
diagnostics in future patches (e.g., Key System issues).
MozReview-Commit-ID: 182ePlrMqn4
The Widevine CDM, and I believe the Adobe CDM too probably, do not mark a
session's keys as unusable when a key session is closed. This means that
the CDMCaps' copy of the keys that are usable is wrong, and so if the media
with the same keys is reloaded with the same MediaKeys, Firefox will assume
that the keys are usable before the license for the keys has been
re-negotiated, and so decryption will fail.
MozReview-Commit-ID: 1kTDzwSD8PE
DecoderDoctorDiagnostics are now used at places where Firefox Chrome and/or
websites checks whether some media formats may be played:
- audio|video.canPlayType()
- audio|video resource loader
- MediaSource.IsTypeSupported()
- MediaSource.AddSourceBuffer()
MozReview-Commit-ID: B1KdjXODq9j
Pass declared-but-yet-undefined DecoderDoctorDiagnostics pointer to various
routines that contribute to deciding if a media format can be played, and
those that create decoders.
Points where a DecoderDoctorDiagnostics can be injected are currently marked
with "/* DecoderDoctorDiagnostics* */ nullptr", and some will be used in
following patches.
MozReview-Commit-ID: 7u37bvY4CpW
HTMLMediaElement needs special protection when playing a stream since its
ImageContainer can outlive the video track of a stream.
Consider for instance when a (cross-origin) video track is removed from a
DOMMediaStream by a user and the remaining video track (non-CORS) does not yet
contain any actual video frames. The HTMLMediaElement will display a frame from
the removed track but the DOMMediaStream's principal has been updated to not
include the principal from the removed track.
With this patch we handle this by letting VideoFrameContainer notify
HTMLMediaElement when it has flushed out all video frames belonging to a
certain PrincipalHandle. I.e., when a new PrincipalHandle has been applied to the
underlying ImageContainer.
MozReview-Commit-ID: LvIZPl6Rdgj
This lets a MediaStreamTrack communicate with its source/producer on the
main thread. It's for now used for stopping a track at the source and
retrieving some metadata, but it could also be a link between actual
sinks of a track and the source, to for instance let the source optimize
by scaling down the resolution when all sinks want lowres-video.
MozReview-Commit-ID: D4SJLr0aqhJ
MediaDecoder previously had 3 states within GetSeekable(), media is either
seekable, seekable but not supported by transport, or not seekable. Due to
changes to make cueless webms playable, a 4th option is needed: a file that is
not fully seekable, but may support seeking from the transport, such as these
webms, should only be seekable in the buffered range.
MozReview-Commit-ID: ISeFkngtrGU
The spec requires us to await a stable state and pause when a media element is removed from a document.
Additionally, before this change we would pause in UnbindFromTree only if HTMLMediaElement::mPaused is false.
However if the media element is set to autoplay, and we unbind before autoplay has had a chance to activate,
we will still continue loading and activate autoplay later. Calling pause, as required by the spec, means
we'll cancel autoplaying.
