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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_RTP_TRANSPORT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_RTP_TRANSPORT_H_
#include "base/memory/weak_ptr.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/core/workers/custom_event_message.h"
#include "third_party/blink/renderer/core/workers/dedicated_worker.h"
#include "third_party/blink/renderer/modules/event_modules.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_rtp_acks.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_rtp_sent.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_rtp_transport_processor.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/cross_thread_handle.h"
#include "third_party/webrtc/api/transport/network_control.h"
namespace blink {
// Event created on a Worker containing a newly created
// RTCRtpTransportProcessor, triggered by a call to
// RTCRtpTransport::createProcessor() on the main thread.
class MODULES_EXPORT RTCRtpTransportProcessorEvent : public Event {
DEFINE_WRAPPERTYPEINFO();
public:
explicit RTCRtpTransportProcessorEvent(RTCRtpTransportProcessor* processor)
: Event(event_type_names::kRtcrtptransportprocessor,
Bubbles::kNo,
Cancelable::kNo),
processor_(processor) {}
// Impl of IDL type.
RTCRtpTransportProcessor* processor() { return processor_; }
void Trace(Visitor* visitor) const override {
Event::Trace(visitor);
visitor->Trace(processor_);
}
private:
Member<RTCRtpTransportProcessor> processor_;
};
class FeedbackProvider : public WTF::ThreadSafeRefCounted<FeedbackProvider> {
public:
virtual ~FeedbackProvider() = default;
virtual void SetProcessor(
CrossThreadWeakHandle<RTCRtpTransportProcessor>
rtp_transport_processor_handle,
scoped_refptr<base::SequencedTaskRunner> task_runner) = 0;
virtual void SetCustomMaxBitrateBps(uint64_t custom_max_bitrate_bps) = 0;
};
class MODULES_EXPORT RTCRtpTransport : public ScriptWrappable,
public ExecutionContextClient {
DEFINE_WRAPPERTYPEINFO();
public:
explicit RTCRtpTransport(ExecutionContext* context);
~RTCRtpTransport() override;
// Implements rtc_rtp_transport.idl
void createProcessor(ScriptState*, DedicatedWorker* worker, ExceptionState&);
void createProcessor(ScriptState*,
DedicatedWorker* worker,
const ScriptValue& options,
ExceptionState&);
void createProcessor(ScriptState*,
DedicatedWorker* worker,
const ScriptValue& options,
HeapVector<ScriptObject> transfer,
ExceptionState&);
void RegisterFeedbackProvider(scoped_refptr<FeedbackProvider> observer);
// Receive Handle to the matching Processor created on a Worker following a
// call to createProcessor().
void SetProcessorHandle(
CrossThreadWeakHandle<RTCRtpTransportProcessor> processor,
scoped_refptr<base::SequencedTaskRunner> processor_task_runner);
void Trace(Visitor* visitor) const override;
private:
// WebRTC network feedback providers which must be told of Processors. Main
// thread only.
Vector<scoped_refptr<FeedbackProvider>> feedback_providers_;
// Handle to the most recently created Processor, set after it's created on
// the worker. Main thread only.
std::optional<CrossThreadWeakHandle<RTCRtpTransportProcessor>> processor_;
scoped_refptr<base::SequencedTaskRunner> processor_task_runner_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_RTP_TRANSPORT_H_
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