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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/content/thread_safe_capture_oracle.h" | 5 #include "media/capture/content/thread_safe_capture_oracle.h" |
6 | 6 |
7 #include "base/basictypes.h" | |
8 #include "base/bind.h" | 7 #include "base/bind.h" |
9 #include "base/bits.h" | 8 #include "base/bits.h" |
10 #include "base/logging.h" | 9 #include "base/logging.h" |
11 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
12 #include "base/synchronization/lock.h" | 11 #include "base/synchronization/lock.h" |
13 #include "base/time/time.h" | 12 #include "base/time/time.h" |
14 #include "base/trace_event/trace_event.h" | 13 #include "base/trace_event/trace_event.h" |
15 #include "media/base/video_capture_types.h" | 14 #include "media/base/video_capture_types.h" |
16 #include "media/base/video_frame.h" | 15 #include "media/base/video_frame.h" |
17 #include "media/base/video_frame_metadata.h" | 16 #include "media/base/video_frame_metadata.h" |
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28 // buffer pool buffers and a desired safety margin. | 27 // buffer pool buffers and a desired safety margin. |
29 const int kTargetMaxPoolUtilizationPercent = 60; | 28 const int kTargetMaxPoolUtilizationPercent = 60; |
30 | 29 |
31 } // namespace | 30 } // namespace |
32 | 31 |
33 ThreadSafeCaptureOracle::ThreadSafeCaptureOracle( | 32 ThreadSafeCaptureOracle::ThreadSafeCaptureOracle( |
34 scoped_ptr<VideoCaptureDevice::Client> client, | 33 scoped_ptr<VideoCaptureDevice::Client> client, |
35 const VideoCaptureParams& params, | 34 const VideoCaptureParams& params, |
36 bool enable_auto_throttling) | 35 bool enable_auto_throttling) |
37 : client_(client.Pass()), | 36 : client_(client.Pass()), |
38 oracle_(base::TimeDelta::FromMicroseconds(static_cast<int64>( | 37 oracle_(base::TimeDelta::FromMicroseconds(static_cast<int64_t>( |
39 1000000.0 / params.requested_format.frame_rate + | 38 1000000.0 / params.requested_format.frame_rate + |
40 0.5 /* to round to nearest int */)), | 39 0.5 /* to round to nearest int */)), |
41 params.requested_format.frame_size, | 40 params.requested_format.frame_size, |
42 params.resolution_change_policy, | 41 params.resolution_change_policy, |
43 enable_auto_throttling), | 42 enable_auto_throttling), |
44 params_(params) { | 43 params_(params) {} |
45 } | |
46 | 44 |
47 ThreadSafeCaptureOracle::~ThreadSafeCaptureOracle() { | 45 ThreadSafeCaptureOracle::~ThreadSafeCaptureOracle() { |
48 } | 46 } |
49 | 47 |
50 bool ThreadSafeCaptureOracle::ObserveEventAndDecideCapture( | 48 bool ThreadSafeCaptureOracle::ObserveEventAndDecideCapture( |
51 VideoCaptureOracle::Event event, | 49 VideoCaptureOracle::Event event, |
52 const gfx::Rect& damage_rect, | 50 const gfx::Rect& damage_rect, |
53 base::TimeTicks event_time, | 51 base::TimeTicks event_time, |
54 scoped_refptr<VideoFrame>* storage, | 52 scoped_refptr<VideoFrame>* storage, |
55 CaptureFrameCallback* callback) { | 53 CaptureFrameCallback* callback) { |
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111 } | 109 } |
112 | 110 |
113 const int frame_number = oracle_.RecordCapture(attenuated_utilization); | 111 const int frame_number = oracle_.RecordCapture(attenuated_utilization); |
114 TRACE_EVENT_ASYNC_BEGIN2("gpu.capture", "Capture", output_buffer.get(), | 112 TRACE_EVENT_ASYNC_BEGIN2("gpu.capture", "Capture", output_buffer.get(), |
115 "frame_number", frame_number, "trigger", event_name); | 113 "frame_number", frame_number, "trigger", event_name); |
116 | 114 |
117 DCHECK_EQ(media::PIXEL_STORAGE_CPU, params_.requested_format.pixel_storage); | 115 DCHECK_EQ(media::PIXEL_STORAGE_CPU, params_.requested_format.pixel_storage); |
118 *storage = VideoFrame::WrapExternalSharedMemory( | 116 *storage = VideoFrame::WrapExternalSharedMemory( |
119 params_.requested_format.pixel_format, coded_size, | 117 params_.requested_format.pixel_format, coded_size, |
120 gfx::Rect(visible_size), visible_size, | 118 gfx::Rect(visible_size), visible_size, |
121 static_cast<uint8*>(output_buffer->data()), output_buffer->mapped_size(), | 119 static_cast<uint8_t*>(output_buffer->data()), |
122 base::SharedMemory::NULLHandle(), 0u, base::TimeDelta()); | 120 output_buffer->mapped_size(), base::SharedMemory::NULLHandle(), 0u, |
| 121 base::TimeDelta()); |
123 DCHECK(*storage); | 122 DCHECK(*storage); |
124 *callback = | 123 *callback = |
125 base::Bind(&ThreadSafeCaptureOracle::DidCaptureFrame, this, frame_number, | 124 base::Bind(&ThreadSafeCaptureOracle::DidCaptureFrame, this, frame_number, |
126 base::Passed(&output_buffer), capture_begin_time, | 125 base::Passed(&output_buffer), capture_begin_time, |
127 oracle_.estimated_frame_duration()); | 126 oracle_.estimated_frame_duration()); |
128 return true; | 127 return true; |
129 } | 128 } |
130 | 129 |
131 gfx::Size ThreadSafeCaptureOracle::GetCaptureSize() const { | 130 gfx::Size ThreadSafeCaptureOracle::GetCaptureSize() const { |
132 base::AutoLock guard(lock_); | 131 base::AutoLock guard(lock_); |
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195 // destructor. |metadata| is still valid for read-access at this point. | 194 // destructor. |metadata| is still valid for read-access at this point. |
196 double utilization = -1.0; | 195 double utilization = -1.0; |
197 if (metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION, | 196 if (metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION, |
198 &utilization)) { | 197 &utilization)) { |
199 base::AutoLock guard(lock_); | 198 base::AutoLock guard(lock_); |
200 oracle_.RecordConsumerFeedback(frame_number, utilization); | 199 oracle_.RecordConsumerFeedback(frame_number, utilization); |
201 } | 200 } |
202 } | 201 } |
203 | 202 |
204 } // namespace media | 203 } // namespace media |
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