Attachment 346484 Details for Bug 187850 – Patch

[patch] Patch

bug-187850-20180803165831.patch (text/plain), 74.12 KB, created by Philippe Normand on 2018-08-03 07:58:33 PDT

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Creator: Philippe Normand

Created: 2018-08-03 07:58:33 PDT

Size: 74.12 KB

patch

obsolete

>Subversion Revision: 234539
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 11982cf5aeaf9aac86f9620b841407fb3db56490..93e4db599eb801a92badd2d2b4afa46374eccabc 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,77 @@
>+2018-08-03  Philippe Normand  <pnormand@igalia.com>
>+
>+        [MediaCapabilities] Platform integration
>+        https://bugs.webkit.org/show_bug.cgi?id=187850
>+
>+        Reviewed by Eric Carlson.
>+
>+        Mock platform support for the MediaCapabilities specification.
>+
>+        Test: media/mediacapabilities/mock-decodingInfo.html
>+              media/mediacapabilities/mock-encodingInfo.html
>+
>+        * Modules/mediacapabilities/MediaCapabilities.cpp:
>+        (WebCore::MediaCapabilities::decodingInfo):
>+        (WebCore::MediaCapabilities::encodingInfo):
>+        * Modules/mediacapabilities/MediaCapabilitiesInfo.h:
>+        (WebCore::MediaCapabilitiesInfo::create):
>+        * PlatformGTK.cmake:
>+        * PlatformMac.cmake:
>+        * PlatformWPE.cmake:
>+        * Sources.txt:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * platform/mediacapabilities/MediaEngineConfiguration.cpp: Added.
>+        (WebCore::MediaEngineVideoConfiguration::MediaEngineVideoConfiguration):
>+        (WebCore::MediaEngineAudioConfiguration::MediaEngineAudioConfiguration):
>+        (WebCore::MediaEngineConfiguration::MediaEngineConfiguration):
>+        * platform/mediacapabilities/MediaEngineConfiguration.h: Added.
>+        (WebCore::MediaEngineVideoConfiguration::create):
>+        (WebCore::MediaEngineVideoConfiguration::contentType const):
>+        (WebCore::MediaEngineVideoConfiguration::size const):
>+        (WebCore::MediaEngineVideoConfiguration::bitrate const):
>+        (WebCore::MediaEngineVideoConfiguration::framerate const):
>+        (WebCore::MediaEngineAudioConfiguration::create):
>+        (WebCore::MediaEngineAudioConfiguration::contentType const):
>+        (WebCore::MediaEngineAudioConfiguration::channels const):
>+        (WebCore::MediaEngineAudioConfiguration::bitrate const):
>+        (WebCore::MediaEngineAudioConfiguration::samplerate const):
>+        (WebCore::MediaEngineConfiguration::audioConfiguration const):
>+        (WebCore::MediaEngineConfiguration::videoConfiguration const):
>+        * platform/mediacapabilities/MediaEngineConfigurationFactory.cpp: Added.
>+        (WebCore::mockEnabled):
>+        (WebCore::MediaEngineConfigurationFactory::createDecodingConfiguration):
>+        (WebCore::MediaEngineConfigurationFactory::createEncodingConfiguration):
>+        (WebCore::MediaEngineConfigurationFactory::enableMock):
>+        (WebCore::MediaEngineConfigurationFactory::disableMock):
>+        * platform/mediacapabilities/MediaEngineConfigurationFactory.h: Added.
>+        * platform/mediacapabilities/MediaEngineDecodingConfiguration.h: Added.
>+        (WebCore::MediaEngineDecodingConfiguration::MediaEngineDecodingConfiguration):
>+        (WebCore::MediaEngineDecodingConfiguration::canDecodeMedia):
>+        (WebCore::MediaEngineDecodingConfiguration::canSmoothlyDecodeMedia):
>+        (WebCore::MediaEngineDecodingConfiguration::canPowerEfficientlyDecodeMedia):
>+        (WebCore::MediaEngineDecodingConfiguration::decodingType const):
>+        * platform/mediacapabilities/MediaEngineEncodingConfiguration.h: Added.
>+        (WebCore::MediaEngineEncodingConfiguration::MediaEngineEncodingConfiguration):
>+        (WebCore::MediaEngineEncodingConfiguration::canEncodeMedia):
>+        (WebCore::MediaEngineEncodingConfiguration::canSmoothlyEncodeMedia):
>+        (WebCore::MediaEngineEncodingConfiguration::canPowerEfficientlyEncodeMedia):
>+        (WebCore::MediaEngineEncodingConfiguration::encodingType const):
>+        * platform/mock/MediaEngineDecodingConfigurationMock.cpp: Added.
>+        (WebCore::MediaEngineDecodingConfigurationMock::canDecodeMedia):
>+        (WebCore::MediaEngineDecodingConfigurationMock::canSmoothlyDecodeMedia):
>+        (WebCore::MediaEngineDecodingConfigurationMock::canPowerEfficientlyDecodeMedia):
>+        * platform/mock/MediaEngineDecodingConfigurationMock.h: Added.
>+        * platform/mock/MediaEngineEncodingConfigurationMock.cpp: Added.
>+        (WebCore::MediaEngineEncodingConfigurationMock::canEncodeMedia):
>+        (WebCore::MediaEngineEncodingConfigurationMock::canSmoothlyEncodeMedia):
>+        (WebCore::MediaEngineEncodingConfigurationMock::canPowerEfficientlyEncodeMedia):
>+        * platform/mock/MediaEngineEncodingConfigurationMock.h: Added.
>+        * testing/Internals.cpp:
>+        (WebCore::Internals::resetToConsistentState):
>+        (WebCore::Internals::enableMockMediaCapabilities):
>+        * testing/Internals.h:
>+        * testing/Internals.idl:
>+
> 2018-08-02  Ryosuke Niwa  <rniwa@webkit.org>
> 
>         Release assert when throwing exceptions in custom element reactions
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp b/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>index fdfb6df76b99b2035e05272777928403ab438ca4..51bf37dc3a6409e666d91b7ccd3dcef72310a7e5 100644
>--- a/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>+++ b/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>@@ -27,8 +27,10 @@
> #include "MediaCapabilities.h"
> 
> #include "ContentType.h"
>+#include "JSMediaCapabilitiesInfo.h"
> #include "MediaDecodingConfiguration.h"
> #include "MediaEncodingConfiguration.h"
>+#include "MediaEngineConfigurationFactory.h"
> #include <wtf/HashSet.h>
> 
> namespace WebCore {
>@@ -195,8 +197,36 @@ void MediaCapabilities::decodingInfo(MediaDecodingConfiguration&& configuration,
>     // 5. In parallel, run the create a MediaCapabilitiesInfo algorithm with configuration and resolve p with its result.
>     // 6. Return p.
>     m_taskQueue.enqueueTask([configuration = WTFMove(configuration), promise = WTFMove(promise)] () mutable {
>-        UNUSED_PARAM(configuration);
>-        UNUSED_PARAM(promise);
>+
>+        // 2.2.3 If configuration is of type MediaDecodingConfiguration, run the following substeps:
>+        MediaEngineConfigurationFactory::DecodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto engineConfiguration) mutable {
>+            auto info = MediaCapabilitiesInfo::create();
>+
>+            if (engineConfiguration) {
>+                // 2.2.3.1. If the user agent is able to decode the media represented by
>+                // configuration, set supported to true. Otherwise set it to false.
>+                info->setSupported(engineConfiguration->canDecodeMedia());
>+
>+                if (info->supported()) {
>+                    // 2.2.3.2. If the user agent is able to decode the media represented by
>+                    // configuration at a pace that allows a smooth playback, set smooth to
>+                    // true. Otherwise set it to false.
>+                    info->setSmooth(engineConfiguration->canSmoothlyDecodeMedia());
>+
>+                    // 2.2.3.3. If the user agent is able to decode the media represented by
>+                    // configuration in a power efficient manner, set powerEfficient to
>+                    // true. Otherwise set it to false. The user agent SHOULD NOT take into
>+                    // consideration the current power source in order to determine the
>+                    // decoding power efficiency unless the deviceâs power source has side
>+                    // effects such as enabling different decoding modules.
>+                    info->setPowerEfficient(engineConfiguration->canPowerEfficientlyDecodeMedia());
>+                }
>+            }
>+
>+            promise->resolveWithNewlyCreated<IDLInterface<MediaCapabilitiesInfo>>(WTFMove(info));
>+        };
>+
>+        MediaEngineConfigurationFactory::createDecodingConfiguration(configuration, callback);
>     });
> }
> 
>@@ -217,8 +247,40 @@ void MediaCapabilities::encodingInfo(MediaEncodingConfiguration&& configuration,
>     // 5. In parallel, run the create a MediaCapabilitiesInfo algorithm with configuration and resolve p with its result.
>     // 6. Return p.
>     m_taskQueue.enqueueTask([configuration = WTFMove(configuration), promise = WTFMove(promise)] () mutable {
>-        UNUSED_PARAM(configuration);
>-        UNUSED_PARAM(promise);
>+
>+        // 2.2.4. If configuration is of type MediaEncodingConfiguration, run the following substeps:
>+        MediaEngineConfigurationFactory::EncodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto engineConfiguration) mutable {
>+            auto info = MediaCapabilitiesInfo::create();
>+
>+            if (engineConfiguration) {
>+                // 2.2.4.1. If the user agent is able to encode the media
>+                // represented by configuration, set supported to true. Otherwise
>+                // set it to false.
>+                info->setSupported(engineConfiguration->canEncodeMedia());
>+
>+                if (info->supported()) {
>+                    // 2.2.4.2. If the user agent is able to encode the media
>+                    // represented by configuration at a pace that allows encoding
>+                    // frames at the same pace as they are sent to the encoder, set
>+                    // smooth to true. Otherwise set it to false.
>+                    info->setSmooth(engineConfiguration->canSmoothlyEncodeMedia());
>+
>+                    // 2.2.4.3. If the user agent is able to encode the media
>+                    // represented by configuration in a power efficient manner, set
>+                    // powerEfficient to true. Otherwise set it to false. The user agent
>+                    // SHOULD NOT take into consideration the current power source in
>+                    // order to determine the encoding power efficiency unless the
>+                    // deviceâs power source has side effects such as enabling different
>+                    // encoding modules.
>+                    info->setPowerEfficient(engineConfiguration->canPowerEfficientlyEncodeMedia());
>+                }
>+            }
>+
>+            promise->resolveWithNewlyCreated<IDLInterface<MediaCapabilitiesInfo>>(WTFMove(info));
>+        };
>+
>+        MediaEngineConfigurationFactory::createEncodingConfiguration(configuration, callback);
>+
>     });
> }
> 
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h b/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
>index 119a127a5590465fa2fd7ace124f5e3fc741fa4e..af7adb8fc878ea2b7f8d672081be7ce06019a78b 100644
>--- a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
>+++ b/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
>@@ -31,6 +31,14 @@ namespace WebCore {
> 
> class MediaCapabilitiesInfo : public RefCounted<MediaCapabilitiesInfo> {
> public:
>+
>+    static Ref<MediaCapabilitiesInfo> create()
>+    {
>+        return adoptRef(*new MediaCapabilitiesInfo());
>+    }
>+
>+    ~MediaCapabilitiesInfo() = default;
>+
>     bool supported() const { return m_supported; }
>     void setSupported(bool supported) { m_supported = supported; }
> 
>@@ -41,6 +49,8 @@ public:
>     void setPowerEfficient(bool powerEfficient) { m_powerEfficient = powerEfficient; }
> 
> private:
>+    MediaCapabilitiesInfo() = default;
>+
>     bool m_supported { false };
>     bool m_smooth { false };
>     bool m_powerEfficient { false };
>diff --git a/Source/WebCore/PlatformGTK.cmake b/Source/WebCore/PlatformGTK.cmake
>index ee5f1bb73939d95d2e0a17fe018cb217a63bce9c..e14ed4adcec092cd8830745f432c737c1e40dfd8 100644
>--- a/Source/WebCore/PlatformGTK.cmake
>+++ b/Source/WebCore/PlatformGTK.cmake
>@@ -30,6 +30,7 @@ list(APPEND WebCore_INCLUDE_DIRECTORIES
>     "${WEBCORE_DIR}/platform/graphics/opentype"
>     "${WEBCORE_DIR}/platform/graphics/wayland"
>     "${WEBCORE_DIR}/platform/graphics/x11"
>+    "${WEBCORE_DIR}/platform/mediacapabilities"
>     "${WEBCORE_DIR}/platform/mediastream/gtk"
>     "${WEBCORE_DIR}/platform/mediastream/gstreamer"
>     "${WEBCORE_DIR}/platform/mock/mediasource"
>diff --git a/Source/WebCore/PlatformMac.cmake b/Source/WebCore/PlatformMac.cmake
>index 5dfe74c79b523100d4ec7b8b4bdf5d835f86f291..e2f95b42635b1be82a89d6955c75946c892aa2e9 100644
>--- a/Source/WebCore/PlatformMac.cmake
>+++ b/Source/WebCore/PlatformMac.cmake
>@@ -99,6 +99,7 @@ list(APPEND WebCore_INCLUDE_DIRECTORIES
>     "${WEBCORE_DIR}/platform/graphics/opengl"
>     "${WEBCORE_DIR}/platform/graphics/mac"
>     "${WEBCORE_DIR}/platform/mac"
>+    "${WEBCORE_DIR}/platform/mediacapabilities"
>     "${WEBCORE_DIR}/platform/mediastream/mac"
>     "${WEBCORE_DIR}/platform/network/cocoa"
>     "${WEBCORE_DIR}/platform/network/cf"
>diff --git a/Source/WebCore/PlatformWPE.cmake b/Source/WebCore/PlatformWPE.cmake
>index eaa89124fedab571cc5f78f86efabbcaa8694778..1e388f2c046d9550363aaefe0cf1ae4dcaa4e62c 100644
>--- a/Source/WebCore/PlatformWPE.cmake
>+++ b/Source/WebCore/PlatformWPE.cmake
>@@ -27,6 +27,7 @@ list(APPEND WebCore_INCLUDE_DIRECTORIES
>     "${WEBCORE_DIR}/platform/graphics/wpe"
>     "${WEBCORE_DIR}/platform/graphics/wayland"
>     "${WEBCORE_DIR}/platform/mock/mediasource"
>+    "${WEBCORE_DIR}/platform/mediacapabilities"
>     "${WEBCORE_DIR}/platform/mediastream/gstreamer"
>     "${WEBCORE_DIR}/platform/network/soup"
>     "${WEBCORE_DIR}/platform/text/icu"
>diff --git a/Source/WebCore/PlatformWin.cmake b/Source/WebCore/PlatformWin.cmake
>index 2fea4e4d8790f29ddd4ae794f4b62e5e367c4ff3..d2991bcee700714df009f595f0bdd0a8c907367f 100644
>--- a/Source/WebCore/PlatformWin.cmake
>+++ b/Source/WebCore/PlatformWin.cmake
>@@ -193,6 +193,7 @@ set(WebCore_FORWARDING_HEADERS_DIRECTORIES
>     platform/animation
>     platform/audio
>     platform/graphics
>+    platform/mediacapabilities
>     platform/mock
>     platform/network
>     platform/sql
>diff --git a/Source/WebCore/Sources.txt b/Source/WebCore/Sources.txt
>index f996d273967a5685c50995be84f17381df04b577..8502ec6953151b95c25d5a522c245dea457eedb2 100644
>--- a/Source/WebCore/Sources.txt
>+++ b/Source/WebCore/Sources.txt
>@@ -1721,6 +1721,9 @@ platform/graphics/transforms/TransformState.cpp
> platform/graphics/transforms/TransformationMatrix.cpp
> platform/graphics/transforms/TranslateTransformOperation.cpp
> 
>+platform/mediacapabilities/MediaEngineConfiguration.cpp
>+platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>+
> platform/mediastream/CaptureDeviceManager.cpp
> platform/mediastream/MediaConstraints.cpp
> platform/mediastream/MediaEndpointConfiguration.cpp
>@@ -1741,6 +1744,8 @@ platform/mediastream/libwebrtc/LibWebRTCProvider.cpp
> 
> platform/mock/DeviceOrientationClientMock.cpp
> platform/mock/GeolocationClientMock.cpp
>+platform/mock/MediaEngineDecodingConfigurationMock.cpp
>+platform/mock/MediaEngineEncodingConfigurationMock.cpp
> platform/mock/MockRealtimeAudioSource.cpp
> platform/mock/MockRealtimeMediaSource.cpp
> platform/mock/MockRealtimeMediaSourceCenter.cpp
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 85288cd4748bbfe477a16f6b888408e1fb384f44..f0b3078966a1f519c1a11aa1bf4594e8d7b9a985 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -10819,6 +10819,16 @@
> 		9A528E8217D7F52F00AA9518 /* FloatingObjects.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FloatingObjects.h; sourceTree = "<group>"; };
> 		9AB1F37E18E2489A00534743 /* CSSToLengthConversionData.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CSSToLengthConversionData.h; sourceTree = "<group>"; };
> 		9AB1F37F18E2489A00534743 /* CSSToLengthConversionData.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CSSToLengthConversionData.cpp; sourceTree = "<group>"; };
>+		9AC6F02121148F5000CBDA06 /* MediaEngineConfiguration.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = MediaEngineConfiguration.cpp; path = mediacapabilities/MediaEngineConfiguration.cpp; sourceTree = "<group>"; };
>+		9AC6F02221148F5100CBDA06 /* MediaEngineConfigurationFactory.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = MediaEngineConfigurationFactory.cpp; path = mediacapabilities/MediaEngineConfigurationFactory.cpp; sourceTree = "<group>"; };
>+		9AC6F02321148F5200CBDA06 /* MediaEngineConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineConfiguration.h; path = mediacapabilities/MediaEngineConfiguration.h; sourceTree = "<group>"; };
>+		9AC6F02421148F5300CBDA06 /* MediaEngineDecodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineDecodingConfiguration.h; path = mediacapabilities/MediaEngineDecodingConfiguration.h; sourceTree = "<group>"; };
>+		9AC6F02521148F5400CBDA06 /* MediaEngineConfigurationFactory.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineConfigurationFactory.h; path = mediacapabilities/MediaEngineConfigurationFactory.h; sourceTree = "<group>"; };
>+		9AC6F02621148F5500CBDA06 /* MediaEngineEncodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineEncodingConfiguration.h; path = mediacapabilities/MediaEngineEncodingConfiguration.h; sourceTree = "<group>"; };
>+		9AC6F02D21148F9F00CBDA06 /* MediaEngineDecodingConfigurationMock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MediaEngineDecodingConfigurationMock.cpp; sourceTree = "<group>"; };
>+		9AC6F02E21148FA100CBDA06 /* MediaEngineEncodingConfigurationMock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MediaEngineEncodingConfigurationMock.cpp; sourceTree = "<group>"; };
>+		9AC6F02F21148FA200CBDA06 /* MediaEngineDecodingConfigurationMock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEngineDecodingConfigurationMock.h; sourceTree = "<group>"; };
>+		9AC6F03021148FA400CBDA06 /* MediaEngineEncodingConfigurationMock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEngineEncodingConfigurationMock.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B73F64 /* ReadableByteStreamInternalsBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ReadableByteStreamInternalsBuiltins.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B764C9 /* StreamInternalsBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StreamInternalsBuiltins.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B764D8 /* ReadableStreamBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ReadableStreamBuiltins.h; sourceTree = "<group>"; };
>@@ -16531,6 +16541,7 @@
> 				A409C983116D0DDD007197BD /* AccessibilityProgressIndicator.h */,
> 				2981CAA6131822EC00D12F2A /* AccessibilityRenderObject.cpp */,
> 				29A8121B0FBB9C1D00510293 /* AccessibilityRenderObject.h */,
>+				A9EE448F210FD69A00B6EAE6 /* AccessibilityRole.idl */,
> 				2981CAA7131822EC00D12F2A /* AccessibilityScrollbar.cpp */,
> 				93C4F6E91108F9A50099D0DB /* AccessibilityScrollbar.h */,
> 				2981CAA8131822EC00D12F2A /* AccessibilityScrollView.cpp */,
>@@ -16560,7 +16571,6 @@
> 				A9F2E0E720475CDC00512855 /* AccessibleSetValueEvent.cpp */,
> 				A9F2E0E820475CDC00512855 /* AccessibleSetValueEvent.h */,
> 				A9F2E0E920475CDE00512855 /* AccessibleSetValueEvent.idl */,
>-				A9EE448F210FD69A00B6EAE6 /* AccessibilityRole.idl */,
> 				A9EE448C210FC9AD00B6EAE6 /* AriaAttributes.idl */,
> 				2981CAAF131822EC00D12F2A /* AXObjectCache.cpp */,
> 				29A8121A0FBB9C1D00510293 /* AXObjectCache.h */,
>@@ -18808,6 +18818,10 @@
> 				CDF2B005182053DF00F2B424 /* mediasource */,
> 				59309A1011F4AE5800250603 /* DeviceOrientationClientMock.cpp */,
> 				59309A1211F4AE6A00250603 /* DeviceOrientationClientMock.h */,
>+				9AC6F02D21148F9F00CBDA06 /* MediaEngineDecodingConfigurationMock.cpp */,
>+				9AC6F02F21148FA200CBDA06 /* MediaEngineDecodingConfigurationMock.h */,
>+				9AC6F02E21148FA100CBDA06 /* MediaEngineEncodingConfigurationMock.cpp */,
>+				9AC6F03021148FA400CBDA06 /* MediaEngineEncodingConfigurationMock.h */,
> 				077B64141B95F703003E9AD5 /* MediaPlaybackTargetMock.cpp */,
> 				077B64151B95F703003E9AD5 /* MediaPlaybackTargetMock.h */,
> 				077B64101B94F12E003E9AD5 /* MediaPlaybackTargetPickerMock.cpp */,
>@@ -21288,6 +21302,19 @@
> 			path = replay;
> 			sourceTree = "<group>";
> 		};
>+		9AC6F02021148F1E00CBDA06 /* mediacapabilities */ = {
>+			isa = PBXGroup;
>+			children = (
>+				9AC6F02121148F5000CBDA06 /* MediaEngineConfiguration.cpp */,
>+				9AC6F02321148F5200CBDA06 /* MediaEngineConfiguration.h */,
>+				9AC6F02221148F5100CBDA06 /* MediaEngineConfigurationFactory.cpp */,
>+				9AC6F02521148F5400CBDA06 /* MediaEngineConfigurationFactory.h */,
>+				9AC6F02421148F5300CBDA06 /* MediaEngineDecodingConfiguration.h */,
>+				9AC6F02621148F5500CBDA06 /* MediaEngineEncodingConfiguration.h */,
>+			);
>+			name = mediacapabilities;
>+			sourceTree = "<group>";
>+		};
> 		A148328B187F506800DA63A6 /* wak */ = {
> 			isa = PBXGroup;
> 			children = (
>@@ -24421,6 +24448,7 @@
> 				B2A015910AF6CD53006BCE0E /* graphics */,
> 				A59E3C1B11580F340072928E /* ios */,
> 				6582A14809999D6C00BEEB6D /* mac */,
>+				9AC6F02021148F1E00CBDA06 /* mediacapabilities */,
> 				C96F5EBF1B5872260091EA9D /* mediasession */,
> 				07221B9217CF0AD400848E51 /* mediastream */,
> 				59C77F101054591C00506104 /* mock */,
>@@ -27870,7 +27898,6 @@
> 				8371AC3B1F509BE400FBF284 /* ErrorCallback.h in Headers */,
> 				2ECF7AE210162B5800427DE7 /* ErrorEvent.h in Headers */,
> 				85031B420A44EFC700F992E0 /* Event.h in Headers */,
>-				CD227E3A2113C86200D285AF /* MediaSessionManagerCocoa.h in Headers */,
> 				4138D3351244054800323D33 /* EventContext.h in Headers */,
> 				418A06D0133C04D500CD379C /* EventDispatcher.h in Headers */,
> 				93C09A530B064DB3005ABD4D /* EventHandler.h in Headers */,
>@@ -29452,6 +29479,7 @@
> 				C96F5EC81B5872260091EA9D /* MediaSessionInterruptionProvider.h in Headers */,
> 				C96F5EC51B5872260091EA9D /* MediaSessionInterruptionProviderMac.h in Headers */,
> 				C90F65561B2253BE002163A1 /* MediaSessionManager.h in Headers */,
>+				CD227E3A2113C86200D285AF /* MediaSessionManagerCocoa.h in Headers */,
> 				07638A991884487200E15A1B /* MediaSessionManagerIOS.h in Headers */,
> 				C9D851F01B39DC780085062E /* MediaSessionMetadata.h in Headers */,
> 				CD3A495F17A9D01B00274E42 /* MediaSource.h in Headers */,
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..30957ff15a5eccf0b8e75ae02a6467331f43a853
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp
>@@ -0,0 +1,87 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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 "MediaEngineConfiguration.h"
>+
>+namespace WebCore {
>+
>+MediaEngineVideoConfiguration::MediaEngineVideoConfiguration(VideoConfiguration&& config)
>+    : m_type(config.contentType)
>+    , m_width(config.width)
>+    , m_height(config.height)
>+    , m_bitrate(config.bitrate)
>+    , m_frameRateNumerator(0)
>+    , m_frameRateDenominator(1)
>+{
>+    bool ok = false;
>+    m_frameRateNumerator = config.framerate.toDouble(&ok);
>+    if (ok)
>+        return;
>+
>+    auto frameratePieces = config.framerate.split('/');
>+    if (frameratePieces.size() != 2)
>+        return;
>+
>+    double numerator = frameratePieces[0].toDouble(&ok);
>+    if (!ok || !numerator)
>+        return;
>+
>+    double denominator = frameratePieces[1].toDouble(&ok);
>+    if (!ok || !denominator)
>+        return;
>+
>+    if (!std::isfinite(numerator) || !std::isfinite(denominator))
>+        return;
>+
>+    m_frameRateNumerator = numerator;
>+    m_frameRateDenominator = denominator;
>+}
>+
>+MediaEngineAudioConfiguration::MediaEngineAudioConfiguration(AudioConfiguration&& config)
>+    : m_type(config.contentType)
>+    , m_channels(config.channels)
>+    , m_bitrate(0)
>+    , m_samplerate(0)
>+{
>+    if (config.bitrate)
>+        m_bitrate = config.bitrate.value();
>+
>+    if (config.samplerate)
>+        m_samplerate = config.samplerate.value();
>+}
>+
>+MediaEngineConfiguration::MediaEngineConfiguration(MediaConfiguration&& config)
>+{
>+    if (config.audio)
>+        m_audioConfiguration = MediaEngineAudioConfiguration::create(config.audio.value());
>+
>+    if (config.video)
>+        m_videoConfiguration = MediaEngineVideoConfiguration::create(config.video.value());
>+}
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..aa3477e62d8908573904b0730d912c0602b01a9c
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h
>@@ -0,0 +1,109 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "AudioConfiguration.h"
>+#include "ContentType.h"
>+#include "IntSize.h"
>+#include "MediaConfiguration.h"
>+#include "VideoConfiguration.h"
>+
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+class MediaEngineConfiguration;
>+
>+class MediaEngineVideoConfiguration : public RefCounted<MediaEngineVideoConfiguration> {
>+public:
>+    static Ref<MediaEngineVideoConfiguration> create(VideoConfiguration& config)
>+    {
>+        return adoptRef(*new MediaEngineVideoConfiguration(WTFMove(config)));
>+    };
>+
>+    ContentType contentType() const { return m_type; };
>+    IntSize size() const { return IntSize(m_width, m_height); };
>+    uint64_t bitrate() const { return m_bitrate; };
>+    double framerate() const { return m_frameRateNumerator / m_frameRateDenominator; };
>+
>+private:
>+    MediaEngineVideoConfiguration(VideoConfiguration&&);
>+
>+    ContentType m_type;
>+    uint32_t m_width;
>+    uint32_t m_height;
>+    uint64_t m_bitrate;
>+    double m_frameRateNumerator;
>+    double m_frameRateDenominator;
>+};
>+
>+class MediaEngineAudioConfiguration : public RefCounted<MediaEngineAudioConfiguration> {
>+public:
>+    static Ref<MediaEngineAudioConfiguration> create(AudioConfiguration& config)
>+    {
>+        return adoptRef(*new MediaEngineAudioConfiguration(WTFMove(config)));
>+    };
>+
>+    ContentType contentType() const { return m_type; };
>+    String channels() const { return m_channels; };
>+    uint64_t bitrate() const { return m_bitrate; };
>+    uint32_t samplerate() const { return m_samplerate; };
>+
>+private:
>+    MediaEngineAudioConfiguration(AudioConfiguration&&);
>+
>+    ContentType m_type;
>+    String m_channels;
>+    uint64_t m_bitrate;
>+    uint32_t m_samplerate;
>+};
>+
>+class MediaEngineConfiguration : public RefCounted<MediaEngineConfiguration> {
>+public:
>+    MediaEngineConfiguration(MediaConfiguration&&);
>+    virtual ~MediaEngineConfiguration() = default;
>+
>+    enum class ImplementationType {
>+        Mock,
>+    };
>+
>+    virtual ImplementationType implementationType() const = 0;
>+
>+    RefPtr<MediaEngineAudioConfiguration> audioConfiguration() const { return m_audioConfiguration; };
>+    RefPtr<MediaEngineVideoConfiguration> videoConfiguration() const { return m_videoConfiguration; };
>+
>+private:
>+    RefPtr<MediaEngineAudioConfiguration> m_audioConfiguration;
>+    RefPtr<MediaEngineVideoConfiguration> m_videoConfiguration;
>+};
>+
>+} // namespace WebCore
>+
>+#define SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(ToValueTypeName, ImplementationTypeName) \
>+    SPECIALIZE_TYPE_TRAITS_BEGIN(ToValueTypeName)                       \
>+    static bool isType(const WebCore::MediaEngineConfiguration& config) { return config.implementationType() == ImplementationTypeName; } \
>+    SPECIALIZE_TYPE_TRAITS_END()
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..b15388573d4ad8d0724ec299e18a18ec0c287aa0
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>@@ -0,0 +1,73 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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 "MediaEngineConfigurationFactory.h"
>+
>+#include "DeprecatedGlobalSettings.h"
>+#include "MediaEngineDecodingConfiguration.h"
>+#include "MediaEngineDecodingConfigurationMock.h"
>+#include "MediaEngineEncodingConfiguration.h"
>+#include "MediaEngineEncodingConfigurationMock.h"
>+
>+namespace WebCore {
>+
>+static bool& mockEnabled()
>+{
>+    static bool enabled;
>+    return enabled;
>+}
>+
>+void MediaEngineConfigurationFactory::createDecodingConfiguration(MediaDecodingConfiguration& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback& callback)
>+{
>+    if (mockEnabled()) {
>+        MediaEngineDecodingConfigurationMock::create(config, callback);
>+        return;
>+    }
>+    callback(nullptr);
>+}
>+
>+void MediaEngineConfigurationFactory::createEncodingConfiguration(MediaEncodingConfiguration& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback& callback)
>+{
>+    if (mockEnabled()) {
>+        MediaEngineEncodingConfigurationMock::create(config, callback);
>+        return;
>+    }
>+    callback(nullptr);
>+}
>+
>+void MediaEngineConfigurationFactory::enableMock()
>+{
>+    mockEnabled() = true;
>+}
>+
>+void MediaEngineConfigurationFactory::disableMock()
>+{
>+    mockEnabled() = false;
>+}
>+
>+}
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7eecb6365c50f8f77827692517326cb06fefca95
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h
>@@ -0,0 +1,50 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "MediaCapabilities.h"
>+#include "MediaDecodingConfiguration.h"
>+#include "MediaEngineDecodingConfiguration.h"
>+#include "MediaEngineEncodingConfiguration.h"
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class MediaEngineConfigurationFactory {
>+public:
>+    using DecodingConfigurationCallback = WTF::Function<void(RefPtr<MediaEngineDecodingConfiguration>)>;
>+    using EncodingConfigurationCallback = WTF::Function<void(RefPtr<MediaEngineEncodingConfiguration>)>;
>+
>+    static void createDecodingConfiguration(MediaDecodingConfiguration&, DecodingConfigurationCallback&);
>+    static void createEncodingConfiguration(MediaEncodingConfiguration&, EncodingConfigurationCallback&);
>+
>+    WEBCORE_EXPORT static void enableMock();
>+    WEBCORE_EXPORT static void disableMock();
>+};
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..cdac105401ae2fc6aeac357ae49cdb59e08e9e44
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h
>@@ -0,0 +1,57 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "MediaDecodingConfiguration.h"
>+#include "MediaEngineConfiguration.h"
>+
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class MediaEngineDecodingConfiguration : public MediaEngineConfiguration {
>+public:
>+    MediaEngineDecodingConfiguration(MediaDecodingConfiguration&& config)
>+        : MediaEngineConfiguration(reinterpret_cast<MediaConfiguration&&>(config))
>+        , m_decodingType(config.type)
>+    {
>+    }
>+
>+    virtual ~MediaEngineDecodingConfiguration() = default;
>+
>+    virtual bool canDecodeMedia() { return false; };
>+    virtual bool canSmoothlyDecodeMedia() { return false; };
>+    virtual bool canPowerEfficientlyDecodeMedia() { return false; };
>+
>+    MediaDecodingType decodingType() const { return m_decodingType; };
>+
>+private:
>+    MediaDecodingType m_decodingType;
>+};
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2f763aa75f1761fac87d6d8c07e7db0c4a27f4d5
>--- /dev/null
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h
>@@ -0,0 +1,57 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "MediaEncodingConfiguration.h"
>+#include "MediaEngineConfiguration.h"
>+
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class MediaEngineEncodingConfiguration : public MediaEngineConfiguration {
>+public:
>+    MediaEngineEncodingConfiguration(MediaEncodingConfiguration&& config)
>+        : MediaEngineConfiguration(reinterpret_cast<MediaConfiguration&&>(config))
>+        , m_encodingType(config.type)
>+    {
>+    }
>+
>+    virtual ~MediaEngineEncodingConfiguration() = default;
>+
>+    virtual bool canEncodeMedia() { return false; };
>+    virtual bool canSmoothlyEncodeMedia() { return false; };
>+    virtual bool canPowerEfficientlyEncodeMedia() { return false; };
>+
>+    MediaEncodingType encodingType() const { return m_encodingType; };
>+
>+private:
>+    MediaEncodingType m_encodingType;
>+};
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..301ce19d05b359eec9d18396c2f2ba23fdc299ce
>--- /dev/null
>+++ b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp
>@@ -0,0 +1,88 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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 "MediaEngineDecodingConfigurationMock.h"
>+
>+#include "ContentType.h"
>+#include "IntSize.h"
>+
>+namespace WebCore {
>+
>+bool MediaEngineDecodingConfigurationMock::canDecodeMedia()
>+{
>+    // The mock implementation supports only local file playback.
>+    if (decodingType() == MediaDecodingType::MediaSource)
>+        return false;
>+
>+    // Maxing out video decoding support at 720P.
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig) {
>+        IntSize size = videoConfig->size();
>+        if (size.width() > 1280 && size.height() > 720)
>+            return false;
>+    }
>+
>+    // Audio decoding support limited to audio/mp4.
>+    auto audioConfig = audioConfiguration();
>+    if (audioConfig)
>+        return audioConfig->contentType().containerType() == "audio/mp4";
>+
>+    return true;
>+}
>+
>+bool MediaEngineDecodingConfigurationMock::canSmoothlyDecodeMedia()
>+{
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig) {
>+        if (videoConfig->framerate() > 30)
>+            return false;
>+    }
>+
>+    RefPtr<MediaEngineAudioConfiguration> audioConfig = audioConfiguration();
>+    if (audioConfig)
>+        return audioConfig->channels() == "2";
>+
>+    return true;
>+}
>+
>+bool MediaEngineDecodingConfigurationMock::canPowerEfficientlyDecodeMedia()
>+{
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig) {
>+        if (videoConfig->contentType().containerType() != "video/mp4")
>+            return false;
>+    }
>+
>+    auto audioConfig = audioConfiguration();
>+    if (audioConfig)
>+        return audioConfig->bitrate() <= 1000;
>+
>+    return true;
>+}
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..61f38298fc00e257335bdd6bf24bb1313ef4456c
>--- /dev/null
>+++ b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h
>@@ -0,0 +1,58 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "MediaDecodingConfiguration.h"
>+#include "MediaEngineConfigurationFactory.h"
>+#include "MediaEngineDecodingConfiguration.h"
>+
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class MediaEngineDecodingConfigurationMock final : public MediaEngineDecodingConfiguration {
>+public:
>+    static void create(MediaDecodingConfiguration& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback& callback)
>+    {
>+        auto mockConfig = adoptRef(new MediaEngineDecodingConfigurationMock(WTFMove(config)));
>+        callback(mockConfig);
>+    };
>+
>+    ImplementationType implementationType() const final { return ImplementationType::Mock; }
>+    bool canDecodeMedia() final;
>+    bool canSmoothlyDecodeMedia() final;
>+    bool canPowerEfficientlyDecodeMedia() final;
>+
>+private:
>+    explicit MediaEngineDecodingConfigurationMock(MediaDecodingConfiguration&& config)
>+        : MediaEngineDecodingConfiguration(WTFMove(config)) { };
>+};
>+
>+}
>+
>+SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(WebCore::MediaEngineDecodingConfigurationMock, WebCore::MediaEngineDecodingConfiguration::ImplementationType::Mock);
>diff --git a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..680249163bbc28186646af12daf0951d69c7ff0d
>--- /dev/null
>+++ b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp
>@@ -0,0 +1,86 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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 "MediaEngineEncodingConfigurationMock.h"
>+
>+#include "ContentType.h"
>+#include "IntSize.h"
>+
>+namespace WebCore {
>+
>+bool MediaEngineEncodingConfigurationMock::canEncodeMedia()
>+{
>+    // The mock implementation supports only local file playback.
>+    if (encodingType() == MediaEncodingType::Record)
>+        return false;
>+
>+    // Maxing out video encoding support at 720P.
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig) {
>+        IntSize size = videoConfig->size();
>+        if (size.width() > 1280 && size.height() > 720)
>+            return false;
>+    }
>+
>+    // Audio encoding support limited to audio/mp4.
>+    auto audioConfig = audioConfiguration();
>+    if (audioConfig && (audioConfig->contentType().containerType() != "audio/mp4"))
>+        return false;
>+
>+    return true;
>+}
>+
>+bool MediaEngineEncodingConfigurationMock::canSmoothlyEncodeMedia()
>+{
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig) {
>+        if (videoConfig->framerate() > 30)
>+            return false;
>+    }
>+
>+    auto audioConfig = audioConfiguration();
>+    if (audioConfig && audioConfig->channels() != "2")
>+        return false;
>+
>+    return true;
>+}
>+
>+bool MediaEngineEncodingConfigurationMock::canPowerEfficientlyEncodeMedia()
>+{
>+    auto videoConfig = videoConfiguration();
>+    if (videoConfig && (videoConfig->contentType().containerType() != "video/mp4"))
>+        return false;
>+
>+    auto audioConfig = audioConfiguration();
>+    if (audioConfig && (audioConfig->bitrate() > 1000))
>+        return false;
>+
>+    return true;
>+}
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c405aff78d651e3d7242253f60b2b30a122a37d
>--- /dev/null
>+++ b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h
>@@ -0,0 +1,58 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * 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.
>+ */
>+
>+#pragma once
>+
>+#include "MediaEncodingConfiguration.h"
>+#include "MediaEngineConfigurationFactory.h"
>+#include "MediaEngineEncodingConfiguration.h"
>+
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class MediaEngineEncodingConfigurationMock final : public MediaEngineEncodingConfiguration {
>+public:
>+    static void create(MediaEncodingConfiguration& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback& callback)
>+    {
>+        auto mockConfig = adoptRef(new MediaEngineEncodingConfigurationMock(WTFMove(config)));
>+        callback(mockConfig);
>+    };
>+
>+    ImplementationType implementationType() const final { return ImplementationType::Mock; }
>+    bool canEncodeMedia() final;
>+    bool canSmoothlyEncodeMedia() final;
>+    bool canPowerEfficientlyEncodeMedia() final;
>+
>+private:
>+    explicit MediaEngineEncodingConfigurationMock(MediaEncodingConfiguration&& config)
>+        : MediaEngineEncodingConfiguration(WTFMove(config)) { };
>+};
>+
>+}
>+
>+SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(WebCore::MediaEngineEncodingConfigurationMock, WebCore::MediaEngineEncodingConfiguration::ImplementationType::Mock);
>diff --git a/Source/WebCore/testing/Internals.cpp b/Source/WebCore/testing/Internals.cpp
>index a3e96ed9651dda7baa559ed139f76de335a9b8d5..0b348e80199a68ab89d307c0fe9e462dfd9433b9 100644
>--- a/Source/WebCore/testing/Internals.cpp
>+++ b/Source/WebCore/testing/Internals.cpp
>@@ -100,6 +100,7 @@
> #include "LibWebRTCProvider.h"
> #include "LoaderStrategy.h"
> #include "MallocStatistics.h"
>+#include "MediaEngineConfigurationFactory.h"
> #include "MediaPlayer.h"
> #include "MediaProducer.h"
> #include "MediaResourceLoader.h"
>@@ -505,6 +506,8 @@ void Internals::resetToConsistentState(Page& page)
>     page.setFullscreenAutoHideDuration(0_s);
>     page.setFullscreenInsets({ });
>     page.setFullscreenControlsHidden(false);
>+
>+    MediaEngineConfigurationFactory::disableMock();
> }
> 
> Internals::Internals(Document& document)
>@@ -3464,6 +3467,11 @@ void Internals::setShouldGenerateTimestamps(SourceBuffer& buffer, bool flag)
> 
> #endif
> 
>+void Internals::enableMockMediaCapabilities()
>+{
>+    MediaEngineConfigurationFactory::enableMock();
>+}
>+
> #if ENABLE(VIDEO)
> 
> ExceptionOr<void> Internals::beginMediaSessionInterruption(const String& interruptionString)
>diff --git a/Source/WebCore/testing/Internals.h b/Source/WebCore/testing/Internals.h
>index 0ab570ba439a18d2fc44189fbd77f00576ae483e..3884efde17cdbd26af07f96f58a134145db5d004 100644
>--- a/Source/WebCore/testing/Internals.h
>+++ b/Source/WebCore/testing/Internals.h
>@@ -474,6 +474,8 @@ public:
>     Ref<MockCDMFactory> registerMockCDM();
> #endif
> 
>+    void enableMockMediaCapabilities();
>+
> #if ENABLE(SPEECH_SYNTHESIS)
>     void enableMockSpeechSynthesizer();
> #endif
>diff --git a/Source/WebCore/testing/Internals.idl b/Source/WebCore/testing/Internals.idl
>index 23aa929536888fc008613d9270342c64efed4abc..750c6f9519dafbf9177bd567f2133bef6ee28842 100644
>--- a/Source/WebCore/testing/Internals.idl
>+++ b/Source/WebCore/testing/Internals.idl
>@@ -478,6 +478,7 @@ enum CompositingPolicy {
> 
>     [Conditional=LEGACY_ENCRYPTED_MEDIA] void initializeMockCDM();
>     [Conditional=ENCRYPTED_MEDIA] MockCDMFactory registerMockCDM();
>+    void enableMockMediaCapabilities();
> 
>     [Conditional=SPEECH_SYNTHESIS] void enableMockSpeechSynthesizer();
> 
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index fea830e6f1668b1557654c43af5bcc608598c332..0a37a2744990e9f73c7dbc5bf924e991ec1bf84f 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,19 @@
>+2018-08-03  Philippe Normand  <pnormand@igalia.com>
>+
>+        [MediaCapabilities] Platform integration
>+        https://bugs.webkit.org/show_bug.cgi?id=187850
>+
>+        Reviewed by Eric Carlson.
>+
>+        Mock tests for the MediaCapabilities specification.
>+
>+        * media/mediacapabilities/mock-decodingInfo-expected.txt: Added.
>+        * media/mediacapabilities/mock-decodingInfo.html: Added.
>+        * media/mediacapabilities/mock-encodingInfo-expected.txt: Added.
>+        * media/mediacapabilities/mock-encodingInfo.html: Added.
>+        * media/video-test.js:
>+        (checkMediaCapabilitiesInfo):
>+
> 2018-08-02  Ryosuke Niwa  <rniwa@webkit.org>
> 
>         Release assert when throwing exceptions in custom element reactions
>diff --git a/LayoutTests/media/mediacapabilities/mock-decodingInfo-expected.txt b/LayoutTests/media/mediacapabilities/mock-decodingInfo-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..6f5b7ae95ef8d992ef9f260e3580b74c3a4dcd1e
>--- /dev/null
>+++ b/LayoutTests/media/mediacapabilities/mock-decodingInfo-expected.txt
>@@ -0,0 +1,66 @@
>+RUN(internals.enableMockMediaCapabilities())
>+
>+Smooth and power efficient 720P MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 24.5 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == true OK
>+
>+Not smooth (too high framerate) but power efficient 720P MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 60.4/2 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == true OK
>+
>+Unsupported protocol: MSE
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'media-source', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 24 } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Unsupported video resolution: 1080P
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs="avc1"', height: 1080, bitrate: 1000, width: 1920, framerate: 24 } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Smooth and power efficient audio MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '2', bitrate: 1000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == true OK
>+
>+Smooth but power inefficient audio MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '2', bitrate: 2000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == false OK
>+
>+Not smooth but power efficient audio MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '5.1', bitrate: 1000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == true OK
>+
>+Not smooth and power inefficient audio MP4 decoding
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '5.1', bitrate: 2000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Unsupported audio codec: ogg vorbis
>+RUN(promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/ogg; codecs="vorbis"', channels: '2' } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+END OF TEST
>+
>diff --git a/LayoutTests/media/mediacapabilities/mock-decodingInfo.html b/LayoutTests/media/mediacapabilities/mock-decodingInfo.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..27439001942af57253ae6e65a6f0d26db149621e
>--- /dev/null
>+++ b/LayoutTests/media/mediacapabilities/mock-decodingInfo.html
>@@ -0,0 +1,107 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+    <script src=../video-test.js></script>
>+    <script type="text/javascript">
>+    var promise;
>+
>+    function doTest()
>+    {
>+        if (!window.internals) {
>+            failTest("Internals is required for this test.")
>+            return;
>+        }
>+
>+         run('internals.enableMockMediaCapabilities()');
>+         next();
>+    }
>+
>+    function next() {
>+         if (!tests.length) {
>+            endTest();
>+            return;
>+        }
>+
>+        var nextTest = tests.shift();
>+        consoleWrite('');
>+        nextTest();
>+    }
>+
>+    tests = [
>+         function() {
>+             consoleWrite('Smooth and power efficient 720P MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 24.5 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth (too high framerate) but power efficient 720P MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 60.4/2 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported protocol: MSE');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'media-source', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 24 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported video resolution: 1080P');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 1080, bitrate: 1000, width: 1920, framerate: 24 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Smooth and power efficient audio MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '2', bitrate: 1000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Smooth but power inefficient audio MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '2', bitrate: 2000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth but power efficient audio MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '5.1', bitrate: 1000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth and power inefficient audio MP4 decoding');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '5.1', bitrate: 2000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported audio codec: ogg vorbis');
>+             run("promise = navigator.mediaCapabilities.decodingInfo({ type: 'file', audio: { contentType: 'audio/ogg; codecs=\"vorbis\"', channels: '2' } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+    ];
>+    </script>
>+</head>
>+<body onload="doTest()" />
>+</html>
>diff --git a/LayoutTests/media/mediacapabilities/mock-encodingInfo-expected.txt b/LayoutTests/media/mediacapabilities/mock-encodingInfo-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..35427418963d100c68a20b5dc2dd16369fd00eab
>--- /dev/null
>+++ b/LayoutTests/media/mediacapabilities/mock-encodingInfo-expected.txt
>@@ -0,0 +1,66 @@
>+RUN(internals.enableMockMediaCapabilities())
>+
>+Smooth and power efficient 720P MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 24.5 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == true OK
>+
>+Not smooth (too high framerate) but power efficient 720P MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 60.4/2 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == true OK
>+
>+Unsupported protocol: Record
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'record', video: { contentType: 'video/mp4; codecs="avc1"', height: 720, bitrate: 1000, width: 1280, framerate: 24 } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Unsupported video resolution: 1080P
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs="avc1"', height: 1080, bitrate: 1000, width: 1920, framerate: 24 } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Smooth and power efficient audio MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '2', bitrate: 1000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == true OK
>+
>+Smooth but power inefficient audio MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '2', bitrate: 2000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == true OK
>+info.powerEfficient == false OK
>+
>+Not smooth but power efficient audio MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '5.1', bitrate: 1000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == true OK
>+
>+Not smooth and power inefficient audio MP4 encoding
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs="mp4a.40.2"', channels: '5.1', bitrate: 2000, samplerate: 44100 } });)
>+Promise resolved OK
>+info.supported == true OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+
>+Unsupported audio codec: ogg vorbis
>+RUN(promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/ogg; codecs="vorbis"', channels: '2' } });)
>+Promise resolved OK
>+info.supported == false OK
>+info.smooth == false OK
>+info.powerEfficient == false OK
>+END OF TEST
>+
>diff --git a/LayoutTests/media/mediacapabilities/mock-encodingInfo.html b/LayoutTests/media/mediacapabilities/mock-encodingInfo.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..b724af6d83adba3100e76807f74a468c146904df
>--- /dev/null
>+++ b/LayoutTests/media/mediacapabilities/mock-encodingInfo.html
>@@ -0,0 +1,107 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+    <script src=../video-test.js></script>
>+    <script type="text/javascript">
>+    var promise;
>+
>+    function doTest()
>+    {
>+        if (!window.internals) {
>+            failTest("Internals is required for this test.")
>+            return;
>+        }
>+
>+         run('internals.enableMockMediaCapabilities()');
>+         next();
>+    }
>+
>+    function next() {
>+         if (!tests.length) {
>+            endTest();
>+            return;
>+        }
>+
>+        var nextTest = tests.shift();
>+        consoleWrite('');
>+        nextTest();
>+    }
>+
>+    tests = [
>+         function() {
>+             consoleWrite('Smooth and power efficient 720P MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 24.5 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth (too high framerate) but power efficient 720P MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 60.4/2 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported protocol: Record');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'record', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 720, bitrate: 1000, width: 1280, framerate: 24 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported video resolution: 1080P');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', video: { contentType: 'video/mp4; codecs=\"avc1\"', height: 1080, bitrate: 1000, width: 1920, framerate: 24 } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Smooth and power efficient audio MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '2', bitrate: 1000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Smooth but power inefficient audio MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '2', bitrate: 2000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, true, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth but power efficient audio MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '5.1', bitrate: 1000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, true);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Not smooth and power inefficient audio MP4 encoding');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"', channels: '5.1', bitrate: 2000, samplerate: 44100  } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, true, false, false);
>+                 next();
>+             }, next);
>+         },
>+         function() {
>+             consoleWrite('Unsupported audio codec: ogg vorbis');
>+             run("promise = navigator.mediaCapabilities.encodingInfo({ type: 'transmission', audio: { contentType: 'audio/ogg; codecs=\"vorbis\"', channels: '2' } });");
>+             shouldResolve(promise).then((info) => {
>+                 checkMediaCapabilitiesInfo(info, false, false, false);
>+                 next();
>+             }, next);
>+         },
>+    ];
>+    </script>
>+</head>
>+<body onload="doTest()" />
>+</html>
>diff --git a/LayoutTests/media/video-test.js b/LayoutTests/media/video-test.js
>index db8e4198d60270d03fafc2a793fef5d8c45827d5..2c3acc5fc654f356105b2e836a46fafb11c424b5 100644
>--- a/LayoutTests/media/video-test.js
>+++ b/LayoutTests/media/video-test.js
>@@ -487,3 +487,9 @@ function handlePromise(promise) {
>     function handle() { }
>     return promise.then(handle, handle);
> }
>+
>+function checkMediaCapabilitiesInfo(info, expectedSupported, expectedSmooth, expectedPowerEfficient) {
>+    logResult(info.supported == expectedSupported, "info.supported == " + expectedSupported);
>+    logResult(info.smooth == expectedSmooth, "info.smooth == " + expectedSmooth);
>+    logResult(info.powerEfficient == expectedPowerEfficient, "info.powerEfficient == " + expectedPowerEfficient);
>+}

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Attachments on bug 187850: 345754 | 346480 | 346481 | 346484 | 346492 | 346498