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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_ENCODED_UNDERLYING_SOURCE_WRAPPER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_UNDERLYING_SOURCE_WRAPPER_H_
#include "base/gtest_prod_util.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "base/unguessable_token.h"
#include "third_party/blink/renderer/core/streams/underlying_source_base.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_underlying_source.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_encoded_video_underlying_source.h"
#include "third_party/blink/renderer/platform/heap/cross_thread_persistent.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
namespace blink {
// This wrapper acts as an underlying source and is used when it's still unknown
// if it is going to be video or audio. Once it's known, one of the
// members should be initialized.
class MODULES_EXPORT RTCEncodedUnderlyingSourceWrapper
: public UnderlyingSourceBase {
public:
explicit RTCEncodedUnderlyingSourceWrapper(
ScriptState*,
WTF::CrossThreadOnceClosure disconnect_callback =
WTF::CrossThreadOnceClosure());
// UnderlyingSourceBase
ScriptPromise<IDLUndefined> Pull(ScriptState*, ExceptionState&) override;
ScriptPromise<IDLUndefined> Cancel(ScriptState*,
ScriptValue reason,
ExceptionState&) override;
void Close();
void CreateAudioUnderlyingSource(
WTF::CrossThreadOnceClosure disconnect_callback_source,
base::UnguessableToken owner_id);
void CreateVideoUnderlyingSource(
WTF::CrossThreadOnceClosure disconnect_callback_source,
base::UnguessableToken owner_id);
using VideoTransformer = WTF::CrossThreadRepeatingFunction<void(
std::unique_ptr<webrtc::TransformableVideoFrameInterface>)>;
using AudioTransformer = WTF::CrossThreadRepeatingFunction<void(
std::unique_ptr<webrtc::TransformableAudioFrameInterface>)>;
VideoTransformer GetVideoTransformer();
AudioTransformer GetAudioTransformer();
void Clear();
void Trace(Visitor*) const override;
private:
Member<RTCEncodedAudioUnderlyingSource> audio_from_encoder_underlying_source_;
Member<RTCEncodedVideoUnderlyingSource> video_from_encoder_underlying_source_;
Member<ScriptState> script_state_;
// This sequence checker is for checking that all the methods are called on
// the same thread.
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_UNDERLYING_SOURCE_WRAPPER_H_
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