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// Copyright 2020 The Chromium Authors. All rights reserved.
// 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_AUDIO_UNDERLYING_SOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_AUDIO_UNDERLYING_SOURCE_H_
#include "base/threading/thread_checker.h"
#include "third_party/blink/renderer/core/streams/underlying_source_base.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace webrtc {
class TransformableFrameInterface;
} // namespace webrtc
namespace blink {
class MODULES_EXPORT RTCEncodedAudioUnderlyingSource
: public UnderlyingSourceBase {
public:
explicit RTCEncodedAudioUnderlyingSource(
ScriptState*,
WTF::CrossThreadOnceClosure disconnect_callback,
bool is_receiver);
// UnderlyingSourceBase
ScriptPromise pull(ScriptState*) override;
ScriptPromise Cancel(ScriptState*, ScriptValue reason) override;
void OnFrameFromSource(std::unique_ptr<webrtc::TransformableFrameInterface>);
void Close();
// Called on any thread to indicate the source is being transferred to an
// UnderlyingSource on a different thread to this.
void OnSourceTransferStarted();
void Trace(Visitor*) const override;
private:
// Implements the handling of this stream being transferred to another
// context, called on the thread upon which the instance was created.
void OnSourceTransferStartedOnTaskRunner();
FRIEND_TEST_ALL_PREFIXES(RTCEncodedAudioUnderlyingSourceTest,
QueuedFramesAreDroppedWhenOverflow);
static const int kMinQueueDesiredSize;
const Member<ScriptState> script_state_;
WTF::CrossThreadOnceClosure disconnect_callback_;
// Indicates if this source is for a receiver. Receiver sources
// expose CSRCs.
const bool is_receiver_;
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_AUDIO_UNDERLYING_SOURCE_H_
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