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Side by Side Diff: media/capture/thread_safe_capture_oracle.cc

Issue 1204063005: Reland: Video Capture: extract storage info from pixel format in VideoCaptureFormat. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: dcheng@ nit on DCHECK_EQ(expected, actual) Created 5 years, 5 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 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 #include "media/capture/thread_safe_capture_oracle.h" 5 #include "media/capture/thread_safe_capture_oracle.h"
6 6
7 #include "base/basictypes.h" 7 #include "base/basictypes.h"
8 #include "base/bind.h" 8 #include "base/bind.h"
9 #include "base/logging.h" 9 #include "base/logging.h"
10 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/scoped_ptr.h"
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45 45
46 if (!client_) 46 if (!client_)
47 return false; // Capture is stopped. 47 return false; // Capture is stopped.
48 48
49 const gfx::Size visible_size = resolution_chooser_.capture_size(); 49 const gfx::Size visible_size = resolution_chooser_.capture_size();
50 // Always round up the coded size to multiple of 16 pixels. 50 // Always round up the coded size to multiple of 16 pixels.
51 // See http://crbug.com/402151. 51 // See http://crbug.com/402151.
52 const gfx::Size coded_size((visible_size.width() + 15) & ~15, 52 const gfx::Size coded_size((visible_size.width() + 15) & ~15,
53 (visible_size.height() + 15) & ~15); 53 (visible_size.height() + 15) & ~15);
54 54
55 scoped_ptr<VideoCaptureDevice::Client::Buffer> output_buffer( 55 scoped_ptr<media::VideoCaptureDevice::Client::Buffer> output_buffer(
56 client_->ReserveOutputBuffer(params_.requested_format.pixel_format, 56 client_->ReserveOutputBuffer(coded_size,
57 coded_size)); 57 (params_.requested_format.pixel_storage !=
58 media::PIXEL_STORAGE_TEXTURE)
59 ? media::PIXEL_FORMAT_I420
60 : media::PIXEL_FORMAT_ARGB,
61 params_.requested_format.pixel_storage));
58 // TODO(miu): Use current buffer pool utilization to drive automatic video 62 // TODO(miu): Use current buffer pool utilization to drive automatic video
59 // resolution changes. http://crbug.com/156767. 63 // resolution changes. http://crbug.com/156767.
60 VLOG(2) << "Current buffer pool utilization is " 64 VLOG(2) << "Current buffer pool utilization is "
61 << (client_->GetBufferPoolUtilization() * 100.0) << '%'; 65 << (client_->GetBufferPoolUtilization() * 100.0) << '%';
62 66
63 const bool should_capture = 67 const bool should_capture =
64 oracle_.ObserveEventAndDecideCapture(event, damage_rect, event_time); 68 oracle_.ObserveEventAndDecideCapture(event, damage_rect, event_time);
65 69
66 const char* event_name = 70 const char* event_name =
67 (event == VideoCaptureOracle::kTimerPoll ? "poll" : 71 (event == VideoCaptureOracle::kTimerPoll ? "poll" :
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91 // to because no output buffer was available. 95 // to because no output buffer was available.
92 TRACE_EVENT_INSTANT1("gpu.capture", "NearlyPipelineLimited", 96 TRACE_EVENT_INSTANT1("gpu.capture", "NearlyPipelineLimited",
93 TRACE_EVENT_SCOPE_THREAD, 97 TRACE_EVENT_SCOPE_THREAD,
94 "trigger", event_name); 98 "trigger", event_name);
95 return false; 99 return false;
96 } 100 }
97 int frame_number = oracle_.RecordCapture(); 101 int frame_number = oracle_.RecordCapture();
98 TRACE_EVENT_ASYNC_BEGIN2("gpu.capture", "Capture", output_buffer.get(), 102 TRACE_EVENT_ASYNC_BEGIN2("gpu.capture", "Capture", output_buffer.get(),
99 "frame_number", frame_number, 103 "frame_number", frame_number,
100 "trigger", event_name); 104 "trigger", event_name);
101 // NATIVE_TEXTURE frames wrap a texture mailbox, which we don't have at the 105 // Texture frames wrap a texture mailbox, which we don't have at the moment.
102 // moment. We do not construct those frames. 106 // We do not construct those frames.
103 if (params_.requested_format.pixel_format != PIXEL_FORMAT_TEXTURE) { 107 if (params_.requested_format.pixel_storage != media::PIXEL_STORAGE_TEXTURE) {
104 *storage = VideoFrame::WrapExternalData( 108 *storage = VideoFrame::WrapExternalData(
105 VideoFrame::I420, 109 VideoFrame::I420,
106 coded_size, 110 coded_size,
107 gfx::Rect(visible_size), 111 gfx::Rect(visible_size),
108 visible_size, 112 visible_size,
109 static_cast<uint8*>(output_buffer->data()), 113 static_cast<uint8*>(output_buffer->data()),
110 output_buffer->size(), 114 output_buffer->size(),
111 base::TimeDelta()); 115 base::TimeDelta());
112 DCHECK(*storage); 116 DCHECK(*storage);
113 } 117 }
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194 utilization >= 0.0) { 198 utilization >= 0.0) {
195 VLOG(2) << "Consumer resource utilization for frame " << frame_number 199 VLOG(2) << "Consumer resource utilization for frame " << frame_number
196 << ": " << utilization; 200 << ": " << utilization;
197 } 201 }
198 202
199 // TODO(miu): Use |utilization| to drive automatic video resolution changes. 203 // TODO(miu): Use |utilization| to drive automatic video resolution changes.
200 // http://crbug.com/156767. 204 // http://crbug.com/156767.
201 } 205 }
202 206
203 } // namespace media 207 } // namespace media
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