MSE: Allow requesting coded frame processor: legacy or new

Source/modules/mediasource/MediaSourceBase.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/mediasource/MediaSourceBase.h"
 
+#include "RuntimeEnabledFeatures.h"
 #include "bindings/v8/ExceptionMessages.h"
 #include "bindings/v8/ExceptionState.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/events/Event.h"
 #include "core/events/GenericEventQueue.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/TimeRanges.h"
 #include "modules/mediasource/MediaSourceRegistry.h"
 #include "platform/Logging.h"
@@ skipping 259 matching lines @@
 {
     m_asyncEventQueue->close();
     if (!isClosed())
         setReadyState(closedKeyword());
     m_webMediaSource.clear();
 }
 
 PassOwnPtr<WebSourceBuffer> MediaSourceBase::createWebSourceBuffer(const String& type, const Vector<String>& codecs, ExceptionState& exceptionState)
 {
     WebSourceBuffer* webSourceBuffer = 0;
-    switch (m_webMediaSource->addSourceBuffer(type, codecs, &webSourceBuffer)) {
+
+    // FIXME: Always use the new frame processor once it has stabilized enough. See http://crbug.com/249422.
+    WebMediaSource::FrameProcessorChoice frameProcessorChoice = RuntimeEnabledFeatures::mediaSourceExperimentalEnabled() ?
+        WebMediaSource::UseNewFrameProcessor : WebMediaSource::UseLegacyFrameProcessor;
+
+    WTF_LOG(Media, "MediaSourceBase::createWebSourceBuffer() %p : frameProcessorChoice = %i", this, frameProcessorChoice);
+
+    switch (m_webMediaSource->addSourceBuffer(type, codecs, frameProcessorChoice, &webSourceBuffer)) {
     case WebMediaSource::AddStatusOk:
         return adoptPtr(webSourceBuffer);
     case WebMediaSource::AddStatusNotSupported:
         ASSERT(!webSourceBuffer);
         // 2.2 https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#widl-MediaSource-addSourceBuffer-SourceBuffer-DOMString-type
         // Step 2: If type contains a MIME type ... that is not supported with the types
         // specified for the other SourceBuffer objects in sourceBuffers, then throw
         // a NotSupportedError exception and abort these steps.
         exceptionState.throwDOMException(NotSupportedError, "The type provided ('" + type + "') is not supported.");
         return nullptr;
@@ skipping 24 matching lines @@
 {
     return ActiveDOMObject::executionContext();
 }
 
 URLRegistry& MediaSourceBase::registry() const
 {
     return MediaSourceRegistry::registry();
 }
 
 }