Produce video frames from gecko-media in CPU memory

cpearce commented 6 years ago

Enable demux and decode and output of video frames from MediaFormatReader and MediaDecoderStateMachine C++ classes.
Import VideoFrameContainer and dependencies.
Have glue ImageContainer notify the GeckoMediaDecoderOwner when the queue of video frames changes.
Plumb up sending the queue of frames over to Rust via a callback on the PlayerEventSink.
The queue of frames should be passed to the compositor somehow for rendering. The Drop impl on the PlanarYCbCrImage ensures that the C++ memory is free'd when the frames are dropped on the Rust side.

ToDos after this merge:

Figure out how to allocate frames in GL surfaces and return those instead.
Figure out how to make the timestamps on the frames something that Servo can understand.

philn commented 6 years ago

@bors-servo r+

bors-servo commented 6 years ago

:pushpin: Commit b698eb6 has been approved by philn

bors-servo commented 6 years ago

:hourglass: Testing commit b698eb6e7908c9968b8475ad4a85821214f4a446 with merge 9fb0980c0b9ff94de7585bcfa63aaa797464e561...

bors-servo commented 6 years ago

:sunny: Test successful - status-travis Approved by: philn Pushing 9fb0980c0b9ff94de7585bcfa63aaa797464e561 to master...

servo / gecko-media