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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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