[MSE][Mac] Add AVSampleBufferRendererSynchronizer support.
authorjer.noble@apple.com <jer.noble@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Thu, 19 Dec 2013 07:01:59 +0000 (07:01 +0000)
committerjer.noble@apple.com <jer.noble@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Thu, 19 Dec 2013 07:01:59 +0000 (07:01 +0000)
commit9b9d9b5339f4db2b7cf786c743db5bb1f5ea4010
tree8179fd82b3726e22add34d1dafa65d38487157bf
parent8fdce6a80cbee50cca910a68a363d8c1eb1d1444
[MSE][Mac] Add AVSampleBufferRendererSynchronizer support.
https://bugs.webkit.org/show_bug.cgi?id=125954

Reviewed by NOBODY (OOPS!).

Instead of slaving all the various renderer's CMTimebases to one master timebase,
use AVSampleBufferRenderSynchronizer, which essentially does the same thing.

* platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.h:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.mm:
(WebCore::CMTimebaseEffectiveRateChangedCallback): Added; call effectiveRateChanged().
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::MediaPlayerPrivateMediaSourceAVFObjC): Set up
    the synchronizer and all the observers.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::~MediaPlayerPrivateMediaSourceAVFObjC): Tear down
    the same.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::isAvailable): Require the
    AVSampleBufferRenderSynchronizer class.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::playInternal): Convert Clock -> Synchronizer.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::pauseInternal): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::paused): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::currentTimeDouble): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::seekInternal): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::setRateDouble): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::ensureLayer): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::destroyLayer): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::effectiveRateChanged): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::addDisplayLayer): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::removeDisplayLayer): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::addAudioRenderer): Ditto.
(WebCore::MediaPlayerPrivateMediaSourceAVFObjC::removeAudioRenderer): Ditto.

Drive-by fix; audio samples can't be subdivided, and video samples are
rarely combined, so remove the call to CMSampleBufferCallForEachSample:
* platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm:
(WebCore::SourceBufferPrivateAVFObjC::didProvideMediaDataForTrackID):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@160825 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Source/WebCore/ChangeLog
Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.h
Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.mm
Source/WebCore/platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm