https://bugs.webkit.org/show_bug.cgi?id=123322

Reviewed by Eric Carlson.

Source/WebCore:

Tests: media/media-source/media-source-addsourcebuffer.html
       media/media-source/media-source-append-buffer.html
       media/media-source/media-source-canplaythrough.html
       media/media-source/media-source-closed.html
       media/media-source/media-source-play.html
       media/media-source/media-source-track-enabled.html
       media/media-source/media-source-tracks.html

Add mock implementation of platform MediaSource classes, allowing ports to test the
MediaSource API without having a platform implementation.

The MockMediaSource will support a byteformat defined in MockBox.h: a simple box-style media
format with an initialization segment containing a number of tracks, followed by a list of
samples.

Add a means to insert a new media engine factory at runtime, so the internals object can add
a MockMediaSourceMediaPlayer:
* platform/graphics/MediaPlayer.cpp:
(WebCore::MediaPlayerFactorySupport::callRegisterMediaEngine):
* platform/graphics/MediaPlayer.h:
* testing/Internals.cpp:
(WebCore::Internals::initializeMockMediaSource):
* testing/Internals.h:
* testing/Internals.idl:

For non-media-source supporting media engines, fail immediately when asked to load a media
source, so that the MockMediaSourceMediaPlayer will be instantiated as a fall-back:
* platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp:
(WebCore::MediaPlayerPrivateAVFoundation::load):
* platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.h:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::supportsType):
* platform/graphics/mac/MediaPlayerPrivateQTKit.h:
* platform/graphics/mac/MediaPlayerPrivateQTKit.mm:
(WebCore::MediaPlayerPrivateQTKit::load):
(WebCore::MediaPlayerPrivateQTKit::supportsType):

Add new files to the project:
* WebCore.xcodeproj/project.pbxproj:
* Source/WebCore/WebCore.exp.in:

Update the MediaSource implementation:
* Modules/mediasource/MediaSource.cpp:
(WebCore::MediaSource::monitorSourceBuffers): Add a link to the spec.
* Modules/mediasource/SourceBuffer.cpp:
(WebCore::SourceBuffer::buffered): Ditto.
(WebCore::SourceBuffer::setTimestampOffset): Ditto.
(WebCore::SourceBuffer::validateInitializationSegment): Ditto.
(WebCore::SourceBuffer::sourceBufferPrivateDidReceiveInitializationSegment): Ditto. Also,
    bring the implementation up to date with part of the spec.
(WebCore::SourceBuffer::sourceBufferPrivateDidReceiveSample): Remove "Predicate" from
    SampleIsRandomAccessPredicate.

Add utility classes to parse and represent the bytestream supported by the MockMediaSource:
* platform/mock/mediasource/MockBox.cpp: Added.
(WebCore::MockBox::MockBox):
(WebCore::MockBox::peekType):
(WebCore::MockBox::peekLength):
(WebCore::MockTrackBox::MockTrackBox):
(WebCore::MockTrackBox::type):
(WebCore::MockInitializationBox::MockInitializationBox):
(WebCore::MockInitializationBox::type):
(WebCore::MockSampleBox::MockSampleBox):
(WebCore::MockSampleBox::type):
* platform/mock/mediasource/MockBox.h: Added.
(WebCore::MockBox::length):
(WebCore::MockBox::type):
(WebCore::MockTrackBox::trackID):
(WebCore::MockTrackBox::codec):
(WebCore::MockTrackBox::kind):
(WebCore::MockInitializationBox::duration):
(WebCore::MockInitializationBox::tracks):
(WebCore::MockSampleBox::presentationTimestamp):
(WebCore::MockSampleBox::decodeTimestamp):
(WebCore::MockSampleBox::duration):
(WebCore::MockSampleBox::trackID):
(WebCore::MockSampleBox::flags):
(WebCore::MockSampleBox::isSync):

Add a MediaPlayerPrivate implementation which uses MockMediaSource:
* platform/mock/mediasource/MockMediaPlayerMediaSource.cpp: Added.
(WebCore::MockMediaPlayerMediaSource::registerMediaEngine):
(WebCore::MockMediaPlayerMediaSource::create):
(WebCore::mimeTypeCache):
(WebCore::MockMediaPlayerMediaSource::getSupportedTypes):
(WebCore::MockMediaPlayerMediaSource::supportsType):
(WebCore::MockMediaPlayerMediaSource::MockMediaPlayerMediaSource):
(WebCore::MockMediaPlayerMediaSource::~MockMediaPlayerMediaSource):
(WebCore::MockMediaPlayerMediaSource::load):
(WebCore::MockMediaPlayerMediaSource::cancelLoad):
(WebCore::MockMediaPlayerMediaSource::play):
(WebCore::MockMediaPlayerMediaSource::pause):
(WebCore::MockMediaPlayerMediaSource::naturalSize):
(WebCore::MockMediaPlayerMediaSource::hasVideo):
(WebCore::MockMediaPlayerMediaSource::hasAudio):
(WebCore::MockMediaPlayerMediaSource::setVisible):
(WebCore::MockMediaPlayerMediaSource::seeking):
(WebCore::MockMediaPlayerMediaSource::paused):
(WebCore::MockMediaPlayerMediaSource::networkState):
(WebCore::MockMediaPlayerMediaSource::readyState):
(WebCore::MockMediaPlayerMediaSource::buffered):
(WebCore::MockMediaPlayerMediaSource::didLoadingProgress):
(WebCore::MockMediaPlayerMediaSource::setSize):
(WebCore::MockMediaPlayerMediaSource::paint):
(WebCore::MockMediaPlayerMediaSource::currentTimeDouble):
(WebCore::MockMediaPlayerMediaSource::durationDouble):
(WebCore::MockMediaPlayerMediaSource::seekDouble):
(WebCore::MockMediaPlayerMediaSource::advanceCurrentTime):
(WebCore::MockMediaPlayerMediaSource::updateDuration):
(WebCore::MockMediaPlayerMediaSource::setReadyState):
* platform/mock/mediasource/MockMediaPlayerMediaSource.h: Added.

Add a mock implementation of MediaSourcePrivate, which uses MockSourceBuffer:
* platform/mock/mediasource/MockMediaSourcePrivate.cpp: Added.
(WebCore::MockMediaSourcePrivate::create):
(WebCore::MockMediaSourcePrivate::MockMediaSourcePrivate):
(WebCore::MockMediaSourcePrivate::~MockMediaSourcePrivate):
(WebCore::MockMediaSourcePrivate::addSourceBuffer):
(WebCore::MockMediaSourcePrivate::removeSourceBuffer):
(WebCore::MockMediaSourcePrivate::duration):
(WebCore::MockMediaSourcePrivate::setDuration):
(WebCore::MockMediaSourcePrivate::markEndOfStream):
(WebCore::MockMediaSourcePrivate::unmarkEndOfStream):
(WebCore::MockMediaSourcePrivate::readyState):
(WebCore::MockMediaSourcePrivate::setReadyState):
(WebCore::MockMediaSourcePrivate::sourceBufferPrivateDidChangeActiveState):
(WebCore::MockSourceBufferPrivateHasAudio):
(WebCore::MockMediaSourcePrivate::hasAudio):
(WebCore::MockSourceBufferPrivateHasVideo):
(WebCore::MockMediaSourcePrivate::hasVideo):
* platform/mock/mediasource/MockMediaSourcePrivate.h: Added.
(WebCore::MockMediaSourcePrivate::activeSourceBuffers):
(WebCore::MockMediaSourcePrivate::player):

Add a mock implementation of SourceBufferPrivate, which uses MockBoxes to parse the
bytestream provided by SourceBuffer:
* platform/mock/mediasource/MockSourceBufferPrivate.cpp: Added.
(WebCore::MockMediaSample::create):
(WebCore::MockMediaSample::~MockMediaSample):
(WebCore::MockMediaSample::MockMediaSample):
(WebCore::MockMediaSample::platformSample):
(WebCore::MockMediaDescription::create):
(WebCore::MockMediaDescription::~MockMediaDescription):
(WebCore::MockMediaDescription::MockMediaDescription):
(WebCore::MockSourceBufferPrivate::create):
(WebCore::MockSourceBufferPrivate::MockSourceBufferPrivate):
(WebCore::MockSourceBufferPrivate::~MockSourceBufferPrivate):
(WebCore::MockSourceBufferPrivate::setClient):
(WebCore::MockSourceBufferPrivate::append):
(WebCore::MockSourceBufferPrivate::didReceiveInitializationSegment):
(WebCore::MockSourceBufferPrivate::didReceiveSample):
(WebCore::MockSourceBufferPrivate::abort):
(WebCore::MockSourceBufferPrivate::removedFromMediaSource):
(WebCore::MockSourceBufferPrivate::readyState):
(WebCore::MockSourceBufferPrivate::setReadyState):
(WebCore::MockSourceBufferPrivate::hasVideo):
(WebCore::MockSourceBufferPrivate::hasAudio):
* platform/mock/mediasource/MockSourceBufferPrivate.h: Added.

Create mock implementations of AudioTrackPrivate, VideoTrackPrivate, and TextTrackPrivate
which wrap the MockTrackBox class:
* platform/mock/mediasource/MockTracks.cpp: Added.
* platform/mock/mediasource/MockTracks.h: Added.
(WebCore::MockAudioTrackPrivate::create):
(WebCore::MockAudioTrackPrivate::~MockAudioTrackPrivate):
(WebCore::MockAudioTrackPrivate::id):
(WebCore::MockAudioTrackPrivate::MockAudioTrackPrivate):
(WebCore::MockTextTrackPrivate::create):
(WebCore::MockTextTrackPrivate::~MockTextTrackPrivate):
(WebCore::MockTextTrackPrivate::id):
(WebCore::MockTextTrackPrivate::MockTextTrackPrivate):
(WebCore::MockVideoTrackPrivate::create):
(WebCore::MockVideoTrackPrivate::~MockVideoTrackPrivate):
(WebCore::MockVideoTrackPrivate::id):
(WebCore::MockVideoTrackPrivate::MockVideoTrackPrivate):

LayoutTests:

* media/media-source/media-source-addsourcebuffer-expected.txt: Added.
* media/media-source/media-source-addsourcebuffer.html: Added.
* media/media-source/media-source-append-buffer-expected.txt: Added.
* media/media-source/media-source-append-buffer.html: Added.
* media/media-source/media-source-canplaythrough-expected.txt: Added.
* media/media-source/media-source-canplaythrough.html: Added.
* media/media-source/media-source-closed-expected.txt: Added.
* media/media-source/media-source-closed.html: Added.
* media/media-source/media-source-play-expected.txt: Added.
* media/media-source/media-source-play.html: Added.
* media/media-source/mock-media-source.js: Added.
* media/video-test.js:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@158853 268f45cc-cd09-0410-ab3c-d52691b4dbfc