1928828 - Do not create an external state machine for playback if the element already has unsupported CDMProxy

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, task, P1)

Comment 1

[Alastor Wu [:alwu]]

Attachment: Bug 1928828 : don't use ExternalEngineStateMachine if we already know the CDMProxy is not supported by WMF-based CDM.

The reason we need to switch between different state machines is that we
cannot determine the playback usage when creating the state machine.
However, if the CDMProxy is already set and is not supported by the
WMF-based CDM, we can directly use the MediaDecoderStateMachine to
avoid a later switch, which can reduce the chance of getting unnecessary
error.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1c11f66ec9df
don't use ExternalEngineStateMachine if we already know the CDMProxy is not supported by WMF-based CDM. r=media-playback-reviewers,aosmond

Comment 3

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/1c11f66ec9df