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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_BASE_AUDIO_RENDERER_MIXER_POOL_H_ | |
6 #define MEDIA_BASE_AUDIO_RENDERER_MIXER_POOL_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "media/base/output_device_info.h" | |
11 | |
12 namespace url { | |
13 class Origin; | |
14 } | |
15 | |
16 namespace media { | |
17 class AudioParameters; | |
18 class AudioRendererMixer; | |
19 | |
20 class MEDIA_EXPORT AudioRendererMixerPool { | |
21 public: | |
22 AudioRendererMixerPool() {} | |
23 virtual ~AudioRendererMixerPool() {} | |
24 | |
25 // Obtains a pointer to mixer instance based on AudioParameters. The pointer | |
26 // is guaranteed to be valid (at least) until it's rereleased by a call to | |
27 // ReturnMixer() | |
28 virtual AudioRendererMixer* GetMixer(int source_render_frame_id, | |
29 const AudioParameters& params, | |
30 const std::string& device_id, | |
31 const url::Origin& security_origin, | |
32 OutputDeviceStatus* device_status) = 0; | |
33 | |
34 // Returns mixer back to the pool. | |
35 virtual void ReturnMixer(int source_render_frame_id, | |
miu
2016/05/19 22:27:16
Are all these arguments necessary to return a mixe
o1ka
2016/05/20 10:40:32
Those are the key used to look-up the mixer. Just
| |
36 const AudioParameters& params, | |
37 const std::string& device_id, | |
38 const url::Origin& security_origin) = 0; | |
39 | |
40 // Returns output device information | |
41 virtual OutputDeviceInfo GetOutputDeviceInfo( | |
42 int source_render_frame_id, | |
43 int session_id, | |
44 const std::string& device_id, | |
45 const url::Origin& security_origin) = 0; | |
46 | |
47 private: | |
48 DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerPool); | |
49 }; | |
50 | |
51 } // namespace media | |
52 | |
53 #endif // MEDIA_BASE_AUDIO_RENDERER_MIXER_POOL_H_ | |
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