| /* |
| * 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_SOURCE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_SOURCE_H_ |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/optional.h" |
| #include "third_party/blink/public/platform/web_media_constraints.h" |
| #include "third_party/blink/public/platform/web_media_stream_source.h" |
| #include "third_party/blink/public/platform/web_media_stream_track.h" |
| #include "third_party/blink/renderer/platform/audio/audio_destination_consumer.h" |
| #include "third_party/blink/renderer/platform/platform_export.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| #include "third_party/blink/renderer/platform/wtf/threading_primitives.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT MediaStreamSource final |
| : public GarbageCollectedFinalized<MediaStreamSource> { |
| public: |
| class PLATFORM_EXPORT Observer : public GarbageCollectedMixin { |
| public: |
| virtual ~Observer() = default; |
| virtual void SourceChangedState() = 0; |
| }; |
| |
| class ExtraData { |
| USING_FAST_MALLOC(ExtraData); |
| |
| public: |
| virtual ~ExtraData() = default; |
| }; |
| |
| enum StreamType { kTypeAudio, kTypeVideo }; |
| |
| enum ReadyState { |
| kReadyStateLive = 0, |
| kReadyStateMuted = 1, |
| kReadyStateEnded = 2 |
| }; |
| |
| static MediaStreamSource* Create(const String& id, |
| StreamType, |
| const String& name, |
| bool remote, |
| ReadyState = kReadyStateLive, |
| bool requires_consumer = false); |
| |
| const String& Id() const { return id_; } |
| StreamType GetType() const { return type_; } |
| const String& GetName() const { return name_; } |
| bool Remote() const { return remote_; } |
| |
| void SetGroupId(const String& group_id); |
| const String& GroupId() { return group_id_; } |
| |
| void SetReadyState(ReadyState); |
| ReadyState GetReadyState() const { return ready_state_; } |
| |
| void AddObserver(Observer*); |
| |
| ExtraData* GetExtraData() const { return extra_data_.get(); } |
| void SetExtraData(std::unique_ptr<ExtraData> extra_data) { |
| extra_data_ = std::move(extra_data); |
| } |
| |
| void SetAudioProcessingProperties(bool echo_cancellation, |
| bool auto_gain_control, |
| bool noise_supression); |
| |
| void SetConstraints(WebMediaConstraints constraints) { |
| constraints_ = constraints; |
| } |
| WebMediaConstraints Constraints() { return constraints_; } |
| void GetSettings(WebMediaStreamTrack::Settings&); |
| |
| const WebMediaStreamSource::Capabilities& GetCapabilities() { |
| return capabilities_; |
| } |
| void SetCapabilities(const WebMediaStreamSource::Capabilities& capabilities) { |
| capabilities_ = capabilities; |
| } |
| |
| void SetAudioFormat(size_t number_of_channels, float sample_rate); |
| void ConsumeAudio(AudioBus*, size_t number_of_frames); |
| |
| bool RequiresAudioConsumer() const { return requires_consumer_; } |
| void AddAudioConsumer(AudioDestinationConsumer*); |
| bool RemoveAudioConsumer(AudioDestinationConsumer*); |
| const HashSet<AudioDestinationConsumer*>& AudioConsumers() { |
| return audio_consumers_; |
| } |
| |
| // |m_extraData| may hold pointers to GC objects, and it may touch them in |
| // destruction. So this class is eagerly finalized to finalize |m_extraData| |
| // promptly. |
| EAGERLY_FINALIZE(); |
| void Trace(blink::Visitor*); |
| |
| private: |
| MediaStreamSource(const String& id, |
| StreamType, |
| const String& name, |
| bool remote, |
| ReadyState, |
| bool requires_consumer); |
| |
| String id_; |
| StreamType type_; |
| String name_; |
| String group_id_; |
| bool remote_; |
| ReadyState ready_state_; |
| bool requires_consumer_; |
| HeapHashSet<WeakMember<Observer>> observers_; |
| Mutex audio_consumers_lock_; |
| HashSet<AudioDestinationConsumer*> audio_consumers_; |
| std::unique_ptr<ExtraData> extra_data_; |
| WebMediaConstraints constraints_; |
| WebMediaStreamSource::Capabilities capabilities_; |
| base::Optional<bool> echo_cancellation_; |
| base::Optional<bool> auto_gain_control_; |
| base::Optional<bool> noise_supression_; |
| }; |
| |
| typedef HeapVector<Member<MediaStreamSource>> MediaStreamSourceVector; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_SOURCE_H_ |