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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ |
6 #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ | 6 #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
11 #include <memory> | 11 #include <memory> |
12 #include <vector> | 12 #include <vector> |
13 | 13 |
14 #include "base/memory/ref_counted.h" | 14 #include "base/memory/ref_counted.h" |
15 #include "base/memory/weak_ptr.h" | 15 #include "base/memory/weak_ptr.h" |
16 #include "base/message_loop/message_loop.h" | 16 #include "base/message_loop/message_loop.h" |
17 #include "base/synchronization/lock.h" | 17 #include "base/synchronization/lock.h" |
18 #include "base/threading/thread_checker.h" | 18 #include "base/threading/thread_checker.h" |
19 #include "cc/layers/video_frame_provider.h" | 19 #include "cc/layers/video_frame_provider.h" |
20 #include "content/common/content_export.h" | 20 #include "content/common/content_export.h" |
| 21 #include "media/base/media_log.h" |
21 | 22 |
22 namespace base { | 23 namespace base { |
23 class SingleThreadTaskRunner; | 24 class SingleThreadTaskRunner; |
24 } | 25 } |
25 | 26 |
26 namespace blink { | 27 namespace blink { |
27 class WebMediaStream; | 28 class WebMediaStream; |
28 } | 29 } |
29 | 30 |
30 namespace gfx { | 31 namespace gfx { |
31 class Size; | 32 class Size; |
32 } | 33 } |
33 | 34 |
34 namespace media { | 35 namespace media { |
35 class MediaLog; | |
36 class VideoRendererAlgorithm; | 36 class VideoRendererAlgorithm; |
37 } | 37 } |
38 | 38 |
39 namespace content { | 39 namespace content { |
40 class WebMediaPlayerMS; | 40 class WebMediaPlayerMS; |
41 | 41 |
42 // This class is designed to handle the work load on compositor thread for | 42 // This class is designed to handle the work load on compositor thread for |
43 // WebMediaPlayerMS. It will be instantiated on the main thread, but destroyed | 43 // WebMediaPlayerMS. It will be instantiated on the main thread, but destroyed |
44 // on the thread holding the last reference. | 44 // on the thread holding the last reference. |
45 // | 45 // |
46 // WebMediaPlayerMSCompositor utilizes VideoRendererAlgorithm to store the | 46 // WebMediaPlayerMSCompositor utilizes VideoRendererAlgorithm to store the |
47 // incoming frames and select the best frame for rendering to maximize the | 47 // incoming frames and select the best frame for rendering to maximize the |
48 // smoothness, if REFERENCE_TIMEs are populated for incoming VideoFrames. | 48 // smoothness, if REFERENCE_TIMEs are populated for incoming VideoFrames. |
49 // Otherwise, WebMediaPlayerMSCompositor will simply store the most recent | 49 // Otherwise, WebMediaPlayerMSCompositor will simply store the most recent |
50 // frame, and submit it whenever asked by the compositor. | 50 // frame, and submit it whenever asked by the compositor. |
51 class CONTENT_EXPORT WebMediaPlayerMSCompositor | 51 class CONTENT_EXPORT WebMediaPlayerMSCompositor |
52 : public NON_EXPORTED_BASE(cc::VideoFrameProvider), | 52 : public NON_EXPORTED_BASE(cc::VideoFrameProvider), |
53 public base::RefCountedThreadSafe<WebMediaPlayerMSCompositor> { | 53 public base::RefCountedThreadSafe<WebMediaPlayerMSCompositor> { |
54 public: | 54 public: |
55 // This |url| represents the media stream we are rendering. |url| is used to | 55 // This |url| represents the media stream we are rendering. |url| is used to |
56 // find out what web stream this WebMediaPlayerMSCompositor is playing, and | 56 // find out what web stream this WebMediaPlayerMSCompositor is playing, and |
57 // together with flag "--disable-rtc-smoothness-algorithm" determine whether | 57 // together with flag "--disable-rtc-smoothness-algorithm" determine whether |
58 // we enable algorithm or not. | 58 // we enable algorithm or not. |
59 WebMediaPlayerMSCompositor( | 59 WebMediaPlayerMSCompositor( |
60 const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner, | 60 const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner, |
61 const blink::WebMediaStream& web_stream, | 61 const blink::WebMediaStream& web_stream, |
62 const base::WeakPtr<WebMediaPlayerMS>& player, | 62 const base::WeakPtr<WebMediaPlayerMS>& player); |
63 scoped_refptr<media::MediaLog> media_log_); | |
64 | 63 |
65 void EnqueueFrame(scoped_refptr<media::VideoFrame> frame); | 64 void EnqueueFrame(scoped_refptr<media::VideoFrame> frame); |
66 | 65 |
67 // Statistical data | 66 // Statistical data |
68 gfx::Size GetCurrentSize(); | 67 gfx::Size GetCurrentSize(); |
69 base::TimeDelta GetCurrentTime(); | 68 base::TimeDelta GetCurrentTime(); |
70 size_t total_frame_count(); | 69 size_t total_frame_count(); |
71 size_t dropped_frame_count(); | 70 size_t dropped_frame_count(); |
72 | 71 |
73 // VideoFrameProvider implementation. | 72 // VideoFrameProvider implementation. |
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118 | 117 |
119 // Used for DCHECKs to ensure method calls executed in the correct thread. | 118 // Used for DCHECKs to ensure method calls executed in the correct thread. |
120 base::ThreadChecker thread_checker_; | 119 base::ThreadChecker thread_checker_; |
121 base::ThreadChecker io_thread_checker_; | 120 base::ThreadChecker io_thread_checker_; |
122 | 121 |
123 scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_; | 122 scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_; |
124 base::MessageLoop* main_message_loop_; | 123 base::MessageLoop* main_message_loop_; |
125 | 124 |
126 base::WeakPtr<WebMediaPlayerMS> player_; | 125 base::WeakPtr<WebMediaPlayerMS> player_; |
127 | 126 |
128 scoped_refptr<media::MediaLog> media_log_; | 127 // TODO(qiangchen, emircan): It might be nice to use a real MediaLog here from |
| 128 // the WebMediaPlayerMS instance, but it owns the MediaLog and this class has |
| 129 // non-deterministic destruction paths (either compositor or IO). |
| 130 media::MediaLog media_log_; |
129 | 131 |
130 size_t serial_; | 132 size_t serial_; |
131 | 133 |
132 // A pointer back to the compositor to inform it about state changes. This | 134 // A pointer back to the compositor to inform it about state changes. This |
133 // is not |nullptr| while the compositor is actively using this | 135 // is not |nullptr| while the compositor is actively using this |
134 // VideoFrameProvider. This will be set to |nullptr| when the compositor stops | 136 // VideoFrameProvider. This will be set to |nullptr| when the compositor stops |
135 // serving this VideoFrameProvider. | 137 // serving this VideoFrameProvider. |
136 cc::VideoFrameProvider::Client* video_frame_provider_client_; | 138 cc::VideoFrameProvider::Client* video_frame_provider_client_; |
137 | 139 |
138 // |current_frame_| is updated only on compositor thread. The object it | 140 // |current_frame_| is updated only on compositor thread. The object it |
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166 | 168 |
167 // |current_frame_lock_| protects |current_frame_used_by_compositor_|, | 169 // |current_frame_lock_| protects |current_frame_used_by_compositor_|, |
168 // |current_frame_|, and |rendering_frame_buffer_|. | 170 // |current_frame_|, and |rendering_frame_buffer_|. |
169 base::Lock current_frame_lock_; | 171 base::Lock current_frame_lock_; |
170 | 172 |
171 DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerMSCompositor); | 173 DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerMSCompositor); |
172 }; | 174 }; |
173 } // namespace content | 175 } // namespace content |
174 | 176 |
175 #endif // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ | 177 #endif // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_COMPOSITOR_H_ |
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