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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 #include "content/renderer/media/html_video_element_capturer_source.h" | 5 #include "content/renderer/media/html_video_element_capturer_source.h" |
6 | 6 |
7 #include "base/location.h" | 7 #include "base/location.h" |
8 #include "base/memory/ptr_util.h" | 8 #include "base/memory/ptr_util.h" |
9 #include "base/single_thread_task_runner.h" | 9 #include "base/single_thread_task_runner.h" |
10 #include "base/threading/thread_task_runner_handle.h" | 10 #include "base/threading/thread_task_runner_handle.h" |
11 #include "base/trace_event/trace_event.h" | 11 #include "base/trace_event/trace_event.h" |
| 12 #include "cc/paint/paint_canvas.h" |
| 13 #include "cc/paint/paint_surface.h" |
12 #include "content/public/renderer/render_thread.h" | 14 #include "content/public/renderer/render_thread.h" |
13 #include "content/renderer/media/media_stream_video_source.h" | 15 #include "content/renderer/media/media_stream_video_source.h" |
14 #include "content/renderer/media/webrtc_uma_histograms.h" | 16 #include "content/renderer/media/webrtc_uma_histograms.h" |
15 #include "media/base/limits.h" | 17 #include "media/base/limits.h" |
16 #include "media/blink/webmediaplayer_impl.h" | 18 #include "media/blink/webmediaplayer_impl.h" |
17 #include "skia/ext/platform_canvas.h" | 19 #include "skia/ext/platform_canvas.h" |
18 #include "third_party/WebKit/public/platform/WebMediaPlayer.h" | 20 #include "third_party/WebKit/public/platform/WebMediaPlayer.h" |
19 #include "third_party/WebKit/public/platform/WebRect.h" | 21 #include "third_party/WebKit/public/platform/WebRect.h" |
20 #include "third_party/WebKit/public/platform/WebSize.h" | 22 #include "third_party/WebKit/public/platform/WebSize.h" |
21 #include "third_party/libyuv/include/libyuv.h" | 23 #include "third_party/libyuv/include/libyuv.h" |
22 #include "third_party/skia/include/core/SkCanvas.h" | |
23 #include "third_party/skia/include/core/SkSurface.h" | |
24 | 24 |
25 namespace { | 25 namespace { |
26 const float kMinFramesPerSecond = 1.0; | 26 const float kMinFramesPerSecond = 1.0; |
27 } // anonymous namespace | 27 } // anonymous namespace |
28 | 28 |
29 namespace content { | 29 namespace content { |
30 | 30 |
31 //static | 31 //static |
32 std::unique_ptr<HtmlVideoElementCapturerSource> | 32 std::unique_ptr<HtmlVideoElementCapturerSource> |
33 HtmlVideoElementCapturerSource::CreateFromWebMediaPlayerImpl( | 33 HtmlVideoElementCapturerSource::CreateFromWebMediaPlayerImpl( |
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87 << media::VideoCaptureFormat::ToString(params.requested_format); | 87 << media::VideoCaptureFormat::ToString(params.requested_format); |
88 DCHECK(params.requested_format.IsValid()); | 88 DCHECK(params.requested_format.IsValid()); |
89 DCHECK(thread_checker_.CalledOnValidThread()); | 89 DCHECK(thread_checker_.CalledOnValidThread()); |
90 | 90 |
91 running_callback_ = running_callback; | 91 running_callback_ = running_callback; |
92 if (!web_media_player_ || !web_media_player_->hasVideo()) { | 92 if (!web_media_player_ || !web_media_player_->hasVideo()) { |
93 running_callback_.Run(false); | 93 running_callback_.Run(false); |
94 return; | 94 return; |
95 } | 95 } |
96 const blink::WebSize resolution = web_media_player_->naturalSize(); | 96 const blink::WebSize resolution = web_media_player_->naturalSize(); |
97 surface_ = | 97 surface_ = cc::PaintSurface::MakeRasterN32Premul(resolution.width, |
98 SkSurface::MakeRasterN32Premul(resolution.width, resolution.height); | 98 resolution.height); |
99 if (!surface_) { | 99 if (!surface_) { |
100 running_callback_.Run(false); | 100 running_callback_.Run(false); |
101 return; | 101 return; |
102 } | 102 } |
103 | 103 |
104 new_frame_callback_ = new_frame_callback; | 104 new_frame_callback_ = new_frame_callback; |
105 // Force |capture_frame_rate_| to be in between k{Min,Max}FramesPerSecond. | 105 // Force |capture_frame_rate_| to be in between k{Min,Max}FramesPerSecond. |
106 capture_frame_rate_ = | 106 capture_frame_rate_ = |
107 std::max(kMinFramesPerSecond, | 107 std::max(kMinFramesPerSecond, |
108 std::min(static_cast<float>(media::limits::kMaxFramesPerSecond), | 108 std::min(static_cast<float>(media::limits::kMaxFramesPerSecond), |
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126 DVLOG(3) << __func__; | 126 DVLOG(3) << __func__; |
127 TRACE_EVENT0("video", "HtmlVideoElementCapturerSource::sendNewFrame"); | 127 TRACE_EVENT0("video", "HtmlVideoElementCapturerSource::sendNewFrame"); |
128 DCHECK(thread_checker_.CalledOnValidThread()); | 128 DCHECK(thread_checker_.CalledOnValidThread()); |
129 | 129 |
130 if (!web_media_player_ || new_frame_callback_.is_null()) | 130 if (!web_media_player_ || new_frame_callback_.is_null()) |
131 return; | 131 return; |
132 | 132 |
133 const base::TimeTicks current_time = base::TimeTicks::Now(); | 133 const base::TimeTicks current_time = base::TimeTicks::Now(); |
134 const blink::WebSize resolution = web_media_player_->naturalSize(); | 134 const blink::WebSize resolution = web_media_player_->naturalSize(); |
135 | 135 |
136 SkCanvas* canvas = surface_->getCanvas(); | 136 cc::PaintCanvas* canvas = surface_->getCanvas(); |
137 SkPaint paint; | 137 cc::PaintFlags paint; |
138 paint.setBlendMode(SkBlendMode::kSrc); | 138 paint.setBlendMode(SkBlendMode::kSrc); |
139 paint.setFilterQuality(kLow_SkFilterQuality); | 139 paint.setFilterQuality(kLow_SkFilterQuality); |
140 web_media_player_->paint( | 140 web_media_player_->paint( |
141 canvas, blink::WebRect(0, 0, resolution.width, resolution.height), | 141 canvas, blink::WebRect(0, 0, resolution.width, resolution.height), paint); |
142 paint); | |
143 DCHECK_NE(kUnknown_SkColorType, canvas->imageInfo().colorType()); | 142 DCHECK_NE(kUnknown_SkColorType, canvas->imageInfo().colorType()); |
144 DCHECK_EQ(canvas->imageInfo().width(), resolution.width); | 143 DCHECK_EQ(canvas->imageInfo().width(), resolution.width); |
145 DCHECK_EQ(canvas->imageInfo().height(), resolution.height); | 144 DCHECK_EQ(canvas->imageInfo().height(), resolution.height); |
146 | 145 |
147 const SkBitmap bitmap = skia::ReadPixels(canvas); | 146 const SkBitmap bitmap = skia::ReadPixels(canvas); |
148 DCHECK_NE(kUnknown_SkColorType, bitmap.colorType()); | 147 DCHECK_NE(kUnknown_SkColorType, bitmap.colorType()); |
149 DCHECK(!bitmap.drawsNothing()); | 148 DCHECK(!bitmap.drawsNothing()); |
150 DCHECK(bitmap.getPixels()); | 149 DCHECK(bitmap.getPixels()); |
151 if (bitmap.colorType() != kN32_SkColorType) { | 150 if (bitmap.colorType() != kN32_SkColorType) { |
152 DLOG(ERROR) << "Only supported color type is kN32_SkColorType (ARGB/ABGR)"; | 151 DLOG(ERROR) << "Only supported color type is kN32_SkColorType (ARGB/ABGR)"; |
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196 next_capture_time_ = current_time; | 195 next_capture_time_ = current_time; |
197 } | 196 } |
198 // Schedule next capture. | 197 // Schedule next capture. |
199 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( | 198 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( |
200 FROM_HERE, base::Bind(&HtmlVideoElementCapturerSource::sendNewFrame, | 199 FROM_HERE, base::Bind(&HtmlVideoElementCapturerSource::sendNewFrame, |
201 weak_factory_.GetWeakPtr()), | 200 weak_factory_.GetWeakPtr()), |
202 next_capture_time_ - current_time); | 201 next_capture_time_ - current_time); |
203 } | 202 } |
204 | 203 |
205 } // namespace content | 204 } // namespace content |
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