/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_MediaCapabilities_h_
#define mozilla_dom_MediaCapabilities_h_
#include "DDLoggedTypeTraits.h"
#include "MediaResult.h"
#include "js/TypeDecls.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/Maybe.h"
#include "mozilla/MozPromise.h"
#include "mozilla/RefPtr.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/MediaCapabilitiesBinding.h"
#include "mozilla/dom/MediaKeySystemAccessManager.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupports.h"
#include "nsStringFwd.h"
#include "nsWrapperCache.h"
class nsIGlobalObject;
namespace mozilla {
class ErrorResult;
class MediaContainerType;
class MediaExtendedMIMEType;
class TaskQueue;
class TrackInfo;
namespace layers {
class KnowsCompositor;
}
namespace mediacaps {
// Pref-driven behaviour flags resolved once per MediaCapabilities request.
struct BehaviorConfig {
bool mLegacy =
false;
bool mWebRTCEnabled = true;
};
}
// namespace mediacaps
namespace dom {
class MediaCapabilities;
}
// namespace dom
DDLoggedTypeName(dom::MediaCapabilities);
namespace dom {
struct MediaDecodingConfiguration;
struct MediaEncodingConfiguration;
struct AudioConfiguration;
struct VideoConfiguration;
class Promise;
class MediaCapabilities final : public nsISupports, public nsWrapperCache {
public:
// Ref counting and cycle collection
NS_DECL_CYCLE_COLLECTING_ISUPPORTS_FINAL
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(MediaCapabilities)
using CapabilitiesPromise =
MozPromise<MediaCapabilitiesInfo, MediaResult,
/* IsExclusive = */ true>;
// WebIDL Methods
already_AddRefed<Promise> DecodingInfo(
const MediaDecodingConfiguration& aConfiguration, ErrorResult& aRv);
already_AddRefed<Promise> EncodingInfo(
const MediaEncodingConfiguration& aConfiguration, ErrorResult& aRv);
// End WebIDL Methods
explicit MediaCapabilities(nsIGlobalObject* aParent);
// Asynchronously queries the platform decoder to determine video decoding
// capabilities (supported, smooth, powerEfficient). Used by the DRM path for
// software-encrypted content to determine the powerEfficient field, and also
// used by the non-DRM video path to query the platform decoder.
static RefPtr<CapabilitiesPromise> CheckVideoDecodingInfo(
RefPtr<TaskQueue> aTaskQueue, RefPtr<layers::KnowsCompositor> aCompositor,
float aFrameRate,
bool aShouldResistFingerprinting,
UniquePtr<TrackInfo> aConfig);
nsIGlobalObject* GetParentObject()
const {
return mParent; }
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
bool CheckTypeForMediaSource(
const MediaExtendedMIMEType& aType)
const;
bool CheckTypeForFile(
const MediaExtendedMIMEType& aType)
const;
bool CheckTypeForEncoder(
const MediaExtendedMIMEType& aType)
const;
private:
virtual ~MediaCapabilities() =
default;
already_AddRefed<layers::KnowsCompositor> GetCompositor();
void CreateMediaCapabilitiesDecodingInfo(
const MediaDecodingConfiguration& aConfiguration, ErrorResult& aRv,
Promise* aPromise,
const mediacaps::BehaviorConfig& aBehavior);
void CreateWebRTCDecodingInfo(
const MediaDecodingConfiguration& aConfiguration, Promise* aPromise,
Maybe<MediaContainerType> aVideoContainer,
Maybe<MediaContainerType> aAudioContainer);
void CreateNonWebRTCDecodingInfo(
const MediaDecodingConfiguration& aConfiguration, Promise* aPromise,
Maybe<MediaContainerType> aVideoContainer,
Maybe<MediaContainerType> aAudioContainer);
RefPtr<MediaKeySystemAccessManager::MediaKeySystemAccessPromise>
CheckEncryptedDecodingSupport(
const MediaDecodingConfiguration& aConfiguration);
nsCOMPtr<nsIGlobalObject> mParent;
};
}
// namespace dom
}
// namespace mozilla
#endif /* mozilla_dom_MediaCapabilities_h_ */