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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MEDIA_REMOTING_REMOTING_CONTROLLER_H_ | |
6 #define MEDIA_REMOTING_REMOTING_CONTROLLER_H_ | |
7 | |
8 #include "base/callback.h" | |
9 #include "base/memory/weak_ptr.h" | |
10 #include "media/base/media_observer.h" | |
11 #include "media/mojo/interfaces/remoting.mojom.h" | |
12 #include "mojo/public/cpp/bindings/binding.h" | |
13 | |
14 // This class does the following: | |
15 // 1) Sends/Receives messages from/to Remoter; | |
16 // 2) Monitors player events as a MediaObserver; | |
17 // 3) May trigger the switch of the media renderer between local playback | |
18 // and remoting. | |
19 // | |
20 namespace media { | |
21 | |
22 class RemotingController final : public MediaObserver, | |
23 public mojom::RemotingSource { | |
24 public: | |
25 explicit RemotingController(mojom::RemotingSourceRequest source_request, | |
26 mojom::RemoterPtr remoter); | |
xhwang
2016/10/04 06:30:30
no need for "explicit" now
xjz
2016/10/04 19:21:29
Done.
| |
27 ~RemotingController() override; | |
28 | |
29 // RemotingSource implementations. | |
30 void OnSinkAvailable() override; | |
31 void OnSinkGone() override; | |
32 void OnStarted() override; | |
33 void OnStartFailed(mojom::RemotingStartFailReason reason) override; | |
34 void OnMessageFromSink(const std::vector<uint8_t>& message) override; | |
35 void OnStopped(mojom::RemotingStopReason reason) override; | |
36 | |
37 // MediaObserver implementation. | |
xhwang
2016/10/04 06:30:30
nit: You use "implementations" above but use "impl
xjz
2016/10/04 19:21:30
Done.
| |
38 // This is called when the video element or its ancestor enters full screen. | |
39 // We currently use this as an indicator for immersive playback. May add other | |
40 // criteria (e.g. the actual display width/height of the video element) in | |
41 // future. | |
42 void OnEnteredFullscreen() override; | |
43 void OnExitedFullscreen() override; | |
44 void OnSetCdm(CdmContext* cdm_context) override; | |
45 void OnMetadata(const PipelineMetadata& metadata) override; | |
46 | |
47 using SwitchRendererCallback = base::Callback<void()>; | |
48 void SetSwitchRenderCallback(const SwitchRendererCallback& cb); | |
xhwang
2016/10/04 06:30:30
nit: It should be SetSwitchRendererCallback
xjz
2016/10/04 19:21:29
Done.
| |
49 | |
50 // Tells which renderer should be used. | |
51 bool is_remoting() const { | |
52 DCHECK(task_runner_->BelongsToCurrentThread()); | |
53 return is_remoting_; | |
54 } | |
55 | |
56 base::WeakPtr<RemotingController> GetWeakPtr() { | |
57 return weak_factory_.GetWeakPtr(); | |
58 } | |
59 | |
60 private: | |
61 bool IsVideoConfigSupported(); | |
62 bool IsAudioConfigSupported(); | |
63 | |
64 // Determines whether to enter or leave Remoting mode and switches if | |
65 // necessary. | |
66 void UpdateAndMaybeSwitch(); | |
67 | |
68 // Indicates if this media element or its ancestor enters full screen. | |
69 bool is_fullscreen_; | |
70 | |
71 // Indicates the remoting sink availablity. | |
72 bool is_sink_available_; | |
73 | |
74 // Indicates if remoting is started. | |
75 bool is_remoting_; | |
76 | |
77 // Current audio/video config. | |
78 VideoDecoderConfig video_decoder_config_; | |
79 AudioDecoderConfig audio_decoder_config_; | |
80 bool has_audio_; | |
81 bool has_video_; | |
82 | |
83 // The callback to switch the media renderer. | |
84 SwitchRendererCallback switch_renderer_cb_; | |
85 | |
86 mojo::Binding<mojom::RemotingSource> binding_; | |
87 mojom::RemoterPtr remoter_; | |
88 | |
89 const scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | |
xhwang
2016/10/04 06:30:30
forward declare base::SingleThreadTaskRunner?
xjz
2016/10/04 19:21:30
Done.
| |
90 | |
91 base::WeakPtrFactory<RemotingController> weak_factory_; | |
92 | |
93 DISALLOW_COPY_AND_ASSIGN(RemotingController); | |
94 }; | |
95 | |
96 } // namespace media | |
97 | |
98 #endif // MEDIA_REMOTING_REMOTING_CONTROLLER_H_ | |
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