| /* |
| * Copyright (C) 2011 Ericsson AB. All rights reserved. |
| * Copyright (C) 2012 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: |
| * |
| * 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. |
| * 3. Neither the name of Ericsson nor the names of its contributors |
| * may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * 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 |
| * OWNER 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. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_DESCRIPTOR_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_DESCRIPTOR_H_ |
| |
| #include <memory> |
| #include "third_party/blink/renderer/platform/mediastream/media_stream_component.h" |
| #include "third_party/blink/renderer/platform/mediastream/media_stream_source.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/forward.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class WebMediaStreamObserver; |
| |
| class PLATFORM_EXPORT MediaStreamDescriptorClient |
| : public GarbageCollectedMixin { |
| public: |
| // Describes how to fire events. Events that are fired immediately execute |
| // JavaScript synchronously, which could change the object's state. Events |
| // that are scheduled to be fired fire at the end of the task execution cycle. |
| enum class DispatchEventTiming { |
| kImmediately, |
| kScheduled, |
| }; |
| |
| virtual ~MediaStreamDescriptorClient() = default; |
| |
| virtual void StreamEnded() = 0; |
| virtual void AddTrackByComponentAndFireEvents(MediaStreamComponent*, |
| DispatchEventTiming) = 0; |
| virtual void RemoveTrackByComponentAndFireEvents(MediaStreamComponent*, |
| DispatchEventTiming) = 0; |
| void Trace(Visitor* visitor) const override {} |
| }; |
| |
| class PLATFORM_EXPORT MediaStreamDescriptor final |
| : public GarbageCollected<MediaStreamDescriptor> { |
| private: |
| static int GenerateUniqueId(); |
| |
| public: |
| // Only used for AudioDestinationNode. |
| MediaStreamDescriptor(const MediaStreamSourceVector& audio_sources, |
| const MediaStreamSourceVector& video_sources); |
| MediaStreamDescriptor(const String& id, |
| const MediaStreamSourceVector& audio_sources, |
| const MediaStreamSourceVector& video_sources); |
| MediaStreamDescriptor(const MediaStreamComponentVector& audio_components, |
| const MediaStreamComponentVector& video_components); |
| MediaStreamDescriptor(const String& id, |
| const MediaStreamComponentVector& audio_components, |
| const MediaStreamComponentVector& video_components); |
| |
| MediaStreamDescriptorClient* Client() const { return client_; } |
| void SetClient(MediaStreamDescriptorClient* client) { client_ = client; } |
| |
| // This is the same as the id of the |MediaStream|. It is unique in most |
| // contexts but collisions can occur e.g. if streams are created by different |
| // |RTCPeerConnection|s or a remote stream ID is signaled to be added, removed |
| // and then re-added resulting in a new stream object the second time around. |
| String Id() const { return id_; } |
| // Uniquely identifies this descriptor. |
| int UniqueId() const { return unique_id_; } |
| |
| unsigned NumberOfAudioComponents() const { return audio_components_.size(); } |
| MediaStreamComponent* AudioComponent(unsigned index) const { |
| return audio_components_[index].Get(); |
| } |
| const HeapVector<Member<MediaStreamComponent>>& AudioComponents() const { |
| return audio_components_; |
| } |
| |
| unsigned NumberOfVideoComponents() const { return video_components_.size(); } |
| MediaStreamComponent* VideoComponent(unsigned index) const { |
| return video_components_[index].Get(); |
| } |
| const HeapVector<Member<MediaStreamComponent>>& VideoComponents() const { |
| return video_components_; |
| } |
| |
| void AddComponent(MediaStreamComponent*); |
| void RemoveComponent(MediaStreamComponent*); |
| |
| void AddRemoteTrack(MediaStreamComponent*); |
| void RemoveRemoteTrack(MediaStreamComponent*); |
| |
| bool Active() const { return active_; } |
| void SetActive(bool active); |
| |
| void AddObserver(WebMediaStreamObserver*); |
| void RemoveObserver(WebMediaStreamObserver*); |
| |
| void Trace(Visitor*) const; |
| |
| private: |
| Member<MediaStreamDescriptorClient> client_; |
| String id_; |
| int unique_id_; |
| HeapVector<Member<MediaStreamComponent>> audio_components_; |
| HeapVector<Member<MediaStreamComponent>> video_components_; |
| Vector<WebMediaStreamObserver*> observers_; |
| bool active_; |
| }; |
| |
| typedef HeapVector<Member<MediaStreamDescriptor>> MediaStreamDescriptorVector; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_DESCRIPTOR_H_ |