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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_BASE_RENDERER_CLIENT_H_ | 5 #ifndef MEDIA_BASE_RENDERER_CLIENT_H_ |
6 #define MEDIA_BASE_RENDERER_CLIENT_H_ | 6 #define MEDIA_BASE_RENDERER_CLIENT_H_ |
7 | 7 |
8 #include "base/time/time.h" | |
8 #include "media/base/pipeline_status.h" | 9 #include "media/base/pipeline_status.h" |
9 #include "ui/gfx/geometry/size.h" | 10 #include "ui/gfx/geometry/size.h" |
10 | 11 |
11 namespace media { | 12 namespace media { |
12 | 13 |
13 // Interface used by Renderer, AudioRenderer, and VideoRenderer implementations | 14 // Interface used by Renderer, AudioRenderer, VideoRenderer and |
14 // to notify their clients. | 15 // MediaPlayerRenderer implementations to notify their clients. |
15 class RendererClient { | 16 class RendererClient { |
16 public: | 17 public: |
17 // Executed if any error was encountered after Renderer initialization. | 18 // Executed if any error was encountered after Renderer initialization. |
18 virtual void OnError(PipelineStatus status) = 0; | 19 virtual void OnError(PipelineStatus status) = 0; |
19 | 20 |
20 // Executed when rendering has reached the end of stream. | 21 // Executed when rendering has reached the end of stream. |
21 virtual void OnEnded() = 0; | 22 virtual void OnEnded() = 0; |
22 | 23 |
23 // Executed periodically with rendering statistics. | 24 // Executed periodically with rendering statistics. |
24 virtual void OnStatisticsUpdate(const PipelineStatistics& stats) = 0; | 25 virtual void OnStatisticsUpdate(const PipelineStatistics& stats) = 0; |
25 | 26 |
26 // Executed when buffering state is changed. | 27 // Executed when buffering state is changed. |
27 virtual void OnBufferingStateChange(BufferingState state) = 0; | 28 virtual void OnBufferingStateChange(BufferingState state) = 0; |
28 | 29 |
29 // Executed whenever the key needed to decrypt the stream is not available. | 30 // Executed whenever the key needed to decrypt the stream is not available. |
30 virtual void OnWaitingForDecryptionKey() = 0; | 31 virtual void OnWaitingForDecryptionKey() = 0; |
31 | 32 |
32 // Executed for the first video frame and whenever natural size changes. | 33 // Executed for the first video frame and whenever natural size changes. |
33 // Only used if media stream contains video track. | 34 // Only used if media stream contains video track. |
34 virtual void OnVideoNaturalSizeChange(const gfx::Size& size) = 0; | 35 virtual void OnVideoNaturalSizeChange(const gfx::Size& size) = 0; |
35 | 36 |
36 // Executed for the first video frame and whenever opacity changes. | 37 // Executed for the first video frame and whenever opacity changes. |
37 // Only used if media stream contains video track. | 38 // Only used if media stream contains video track. |
38 virtual void OnVideoOpacityChange(bool opaque) = 0; | 39 virtual void OnVideoOpacityChange(bool opaque) = 0; |
40 | |
41 // Executed when video metadata is first read, and whenever it changes. | |
42 // Only used when we are using a URL demuxer (e.g. for MediaPlayerRenderer). | |
43 virtual void OnDurationChange(base::TimeDelta duration) = 0; | |
xhwang
2016/06/22 17:39:02
As discussed offline, this change sgtm :) Now we h
| |
39 }; | 44 }; |
40 | 45 |
41 } // namespace media | 46 } // namespace media |
42 | 47 |
43 #endif // MEDIA_BASE_RENDERER_CLIENT_H_ | 48 #endif // MEDIA_BASE_RENDERER_CLIENT_H_ |
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