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| 1 // Copyright 2014 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_RENDERER_FACTORY_H_ |
| 6 #define MEDIA_BASE_RENDERER_FACTORY_H_ |
| 7 |
| 8 #include "base/macros.h" |
| 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "media/base/media_export.h" |
| 12 #include "media/base/renderer.h" |
| 13 |
| 14 namespace base { |
| 15 class SingleThreadTaskRunner; |
| 16 } |
| 17 |
| 18 namespace media { |
| 19 |
| 20 class AudioRendererSink; |
| 21 |
| 22 // A factory class for creating media::Renderer to be used by media pipeline. |
| 23 class MEDIA_EXPORT RendererFactory { |
| 24 public: |
| 25 RendererFactory(); |
| 26 virtual ~RendererFactory(); |
| 27 |
| 28 // Creates and returns a Renderer. All methods of the created Renderer except |
| 29 // for GetMediaTime() will be called on the |media_task_runner|. |
| 30 // GetMediaTime() could be called on any thread. |
| 31 // The created Renderer can use the |audio_renderer_sink| to render audio. |
| 32 virtual scoped_ptr<Renderer> CreateRenderer( |
| 33 const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner, |
| 34 AudioRendererSink* audio_renderer_sink) = 0; |
| 35 |
| 36 private: |
| 37 DISALLOW_COPY_AND_ASSIGN(RendererFactory); |
| 38 }; |
| 39 |
| 40 } // namespace media |
| 41 |
| 42 #endif // MEDIA_BASE_RENDERER_FACTORY_H_ |
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