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Side by Side Diff: content/browser/media/capture/web_contents_video_capture_device.cc

Issue 172003004: Fixit: Move tab and desktop capture code to new location. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 6 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 // Implementation notes: This needs to work on a variety of hardware 5 // Implementation notes: This needs to work on a variety of hardware
6 // configurations where the speed of the CPU and GPU greatly affect overall 6 // configurations where the speed of the CPU and GPU greatly affect overall
7 // performance. Spanning several threads, the process of capturing has been 7 // performance. Spanning several threads, the process of capturing has been
8 // split up into four conceptual stages: 8 // split up into four conceptual stages:
9 // 9 //
10 // 1. Reserve Buffer: Before a frame can be captured, a slot in the client's 10 // 1. Reserve Buffer: Before a frame can be captured, a slot in the client's
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41 // thread1: |-Capture-f1------v |-Capture-f2------v |-Capture-f3----v |-Capt 41 // thread1: |-Capture-f1------v |-Capture-f2------v |-Capture-f3----v |-Capt
42 // thread2: |-Render-f1-----v |-Render-f2-----v |-Render-f3 42 // thread2: |-Render-f1-----v |-Render-f2-----v |-Render-f3
43 // 43 //
44 // In the above example, both capturing and rendering *each* take almost the 44 // In the above example, both capturing and rendering *each* take almost the
45 // full 33 ms available between frames, yet we see that the required throughput 45 // full 33 ms available between frames, yet we see that the required throughput
46 // is obtained. 46 // is obtained.
47 // 47 //
48 // Turning on verbose logging will cause the effective frame rate to be logged 48 // Turning on verbose logging will cause the effective frame rate to be logged
49 // at 5-second intervals. 49 // at 5-second intervals.
50 50
51 #include "content/browser/renderer_host/media/web_contents_video_capture_device. h" 51 #include "content/browser/media/capture/web_contents_video_capture_device.h"
52 52
53 #include "base/basictypes.h" 53 #include "base/basictypes.h"
54 #include "base/bind.h" 54 #include "base/bind.h"
55 #include "base/callback_helpers.h" 55 #include "base/callback_helpers.h"
56 #include "base/logging.h" 56 #include "base/logging.h"
57 #include "base/memory/scoped_ptr.h" 57 #include "base/memory/scoped_ptr.h"
58 #include "base/memory/weak_ptr.h" 58 #include "base/memory/weak_ptr.h"
59 #include "base/message_loop/message_loop_proxy.h" 59 #include "base/message_loop/message_loop_proxy.h"
60 #include "base/metrics/histogram.h" 60 #include "base/metrics/histogram.h"
61 #include "base/sequenced_task_runner.h" 61 #include "base/sequenced_task_runner.h"
62 #include "base/threading/thread.h" 62 #include "base/threading/thread.h"
63 #include "base/threading/thread_checker.h" 63 #include "base/threading/thread_checker.h"
64 #include "base/time/time.h" 64 #include "base/time/time.h"
65 #include "content/browser/renderer_host/media/content_video_capture_device_core. h" 65 #include "content/browser/media/capture/content_video_capture_device_core.h"
66 #include "content/browser/renderer_host/media/video_capture_oracle.h" 66 #include "content/browser/media/capture/video_capture_oracle.h"
67 #include "content/browser/renderer_host/media/web_contents_capture_util.h" 67 #include "content/browser/media/capture/web_contents_capture_util.h"
68 #include "content/browser/renderer_host/render_widget_host_impl.h" 68 #include "content/browser/renderer_host/render_widget_host_impl.h"
69 #include "content/browser/web_contents/web_contents_impl.h" 69 #include "content/browser/web_contents/web_contents_impl.h"
70 #include "content/port/browser/render_widget_host_view_frame_subscriber.h" 70 #include "content/port/browser/render_widget_host_view_frame_subscriber.h"
71 #include "content/port/browser/render_widget_host_view_port.h" 71 #include "content/port/browser/render_widget_host_view_port.h"
72 #include "content/public/browser/browser_thread.h" 72 #include "content/public/browser/browser_thread.h"
73 #include "content/public/browser/notification_source.h" 73 #include "content/public/browser/notification_source.h"
74 #include "content/public/browser/notification_types.h" 74 #include "content/public/browser/notification_types.h"
75 #include "content/public/browser/render_view_host.h" 75 #include "content/public/browser/render_view_host.h"
76 #include "content/public/browser/render_widget_host_view.h" 76 #include "content/public/browser/render_widget_host_view.h"
77 #include "content/public/browser/web_contents_observer.h" 77 #include "content/public/browser/web_contents_observer.h"
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818 scoped_ptr<Client> client) { 818 scoped_ptr<Client> client) {
819 DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString(); 819 DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
820 core_->AllocateAndStart(params, client.Pass()); 820 core_->AllocateAndStart(params, client.Pass());
821 } 821 }
822 822
823 void WebContentsVideoCaptureDevice::StopAndDeAllocate() { 823 void WebContentsVideoCaptureDevice::StopAndDeAllocate() {
824 core_->StopAndDeAllocate(); 824 core_->StopAndDeAllocate();
825 } 825 }
826 826
827 } // namespace content 827 } // namespace content
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