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// Copyright 2017 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 MEDIA_REMOTING_RECEIVER_H_
#define MEDIA_REMOTING_RECEIVER_H_
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "media/base/buffering_state.h"
#include "media/base/demuxer_stream.h"
#include "media/base/renderer_client.h"
#include "media/remoting/rpc_broker.h"
namespace media {
class Renderer;
class DecoderBuffer;
} // namespace media
namespace media {
namespace remoting {
class RpcBroker;
class StreamProvider;
// Media remoting receiver. Media streams are rendered by |renderer|.
// |rpc_broker| outlives this class.
class Receiver final : public RendererClient {
public:
Receiver(std::unique_ptr<Renderer> renderer, RpcBroker* rpc_broker);
~Receiver();
// RendererClient implementation.
void OnError(PipelineStatus status) override;
void OnEnded() override;
void OnStatisticsUpdate(const PipelineStatistics& stats) override;
void OnBufferingStateChange(BufferingState state) override;
void OnWaitingForDecryptionKey() override;
void OnVideoNaturalSizeChange(const gfx::Size& size) override;
void OnVideoOpacityChange(bool opaque) override;
void OnDurationChange(base::TimeDelta duration) override;
void OnReceivedRpc(std::unique_ptr<pb::RpcMessage> message);
void OnReceivedBuffer(DemuxerStream::Type type,
scoped_refptr<DecoderBuffer> buffer);
private:
// RPC message handlers.
void AcquireRenderer(std::unique_ptr<pb::RpcMessage> message);
void Initialize(std::unique_ptr<pb::RpcMessage> message);
void SetPlaybackRate(std::unique_ptr<pb::RpcMessage> message);
void FlushUntil(std::unique_ptr<pb::RpcMessage> message);
void StartPlayingFrom(std::unique_ptr<pb::RpcMessage> message);
void SetVolume(std::unique_ptr<pb::RpcMessage> message);
// Initialization callbacks.
void OnStreamInitialized();
void OnRendererInitialized(PipelineStatus status);
void OnFlushDone();
// Periodically send the UpdateTime RPC message to update the media time.
void ScheduleMediaTimeUpdates();
void SendMediaTimeUpdate();
const std::unique_ptr<Renderer> renderer_;
RpcBroker* const rpc_broker_; // Outlives this class.
// The CourierRenderer handle on sender side. Set when AcauireRenderer() is
// called.
int remote_handle_ = RpcBroker::kInvalidHandle;
int rpc_handle_ = RpcBroker::kInvalidHandle;
std::unique_ptr<StreamProvider> stream_provider_;
// The timer to periodically update the media time.
base::RepeatingTimer time_update_timer_;
base::WeakPtrFactory<Receiver> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(Receiver);
};
} // namespace remoting
} // namespace media
#endif // MEDIA_REMOTING_RECEIVER_H_
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