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/*
* 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 <optional>
#include <utility>
#include "base/memory/raw_ptr.h"
#include "base/synchronization/lock.h"
#include "third_party/blink/public/platform/modules/mediastream/web_media_stream_source.h"
#include "third_party/blink/public/platform/modules/mediastream/web_media_stream_track.h"
#include "third_party/blink/public/platform/modules/mediastream/web_platform_media_stream_source.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/prefinalizer.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_track_platform.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "ui/display/types/display_constants.h"
namespace blink {
// GarbageCollected wrapper of a WebPlatformMediaStreamSource, which acts as a
// source backing one or more MediaStreamTracks.
class PLATFORM_EXPORT MediaStreamSource final
: public GarbageCollected<MediaStreamSource> {
USING_PRE_FINALIZER(MediaStreamSource, Dispose);
public:
class PLATFORM_EXPORT Observer : public GarbageCollectedMixin {
public:
virtual ~Observer() = default;
virtual void SourceChangedState() = 0;
virtual void SourceChangedCaptureConfiguration() = 0;
virtual void SourceChangedCaptureHandle() = 0;
// No listener needs zoom-level updates on Android or iOS.
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
virtual void SourceChangedZoomLevel(int) = 0;
#endif
};
enum StreamType { kTypeAudio, kTypeVideo };
enum ReadyState {
kReadyStateLive = 0,
kReadyStateMuted = 1,
kReadyStateEnded = 2
};
MediaStreamSource(
const String& id,
StreamType type,
const String& name,
bool remote,
std::unique_ptr<WebPlatformMediaStreamSource> platform_source,
ReadyState state = kReadyStateLive,
bool requires_consumer = false);
MediaStreamSource(
const String& id,
int64_t display_id,
StreamType type,
const String& name,
bool remote,
std::unique_ptr<WebPlatformMediaStreamSource> platform_source,
ReadyState state = kReadyStateLive,
bool requires_consumer = false);
const String& Id() const { return id_; }
int64_t GetDisplayId() const { return display_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*);
WebPlatformMediaStreamSource* GetPlatformSource() const {
return platform_source_.get();
}
void SetAudioProcessingProperties(bool echo_cancellation,
bool auto_gain_control,
bool noise_supression,
bool voice_isolation);
void GetSettings(MediaStreamTrackPlatform::Settings&);
struct Capabilities {
// Vector is used to store an optional range for the below numeric
// fields. All of them should have 0 or 2 values representing min/max.
Vector<uint32_t> width;
Vector<uint32_t> height;
Vector<double> aspect_ratio;
Vector<double> frame_rate;
Vector<bool> echo_cancellation;
Vector<bool> auto_gain_control;
Vector<bool> noise_suppression;
Vector<bool> voice_isolation;
Vector<int32_t> sample_size;
Vector<int32_t> channel_count;
Vector<int32_t> sample_rate;
Vector<double> latency;
MediaStreamTrackPlatform::FacingMode facing_mode =
MediaStreamTrackPlatform::FacingMode::kNone;
String device_id;
String group_id;
// Indicates if the device is available for use. If not, capabilities are
// not exposed.
bool is_available = true;
};
const Capabilities& GetCapabilities() { return capabilities_; }
void SetCapabilities(const Capabilities& capabilities) {
capabilities_ = capabilities;
}
void OnDeviceCaptureConfigurationChange(const MediaStreamDevice& device);
void OnDeviceCaptureHandleChange(const MediaStreamDevice& device);
void OnZoomLevelChange(const MediaStreamDevice& device, int zoom_level);
void Trace(Visitor*) const;
void Dispose();
private:
// The ID of this MediaStreamSource object itself.
String id_;
// If this MediaStreamSource object is associated with a display,
// then `display_id_` holds the display's own ID.
// Otherwise, display::kInvalidDisplayId.
// This attribute is currently only set on ChromeOS.
int64_t display_id_ = display::kInvalidDisplayId;
StreamType type_;
String name_;
String group_id_;
bool remote_;
ReadyState ready_state_;
HeapHashSet<WeakMember<Observer>> observers_;
std::unique_ptr<WebPlatformMediaStreamSource> platform_source_;
Capabilities capabilities_;
std::optional<bool> echo_cancellation_;
std::optional<bool> auto_gain_control_;
std::optional<bool> noise_supression_;
std::optional<bool> voice_isolation_;
};
typedef HeapVector<Member<MediaStreamSource>> MediaStreamSourceVector;
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_SOURCE_H_
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