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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/gpu/gpu_arc_video_encode_accelerator.h" | |
6 | |
7 #include <utility> | |
8 | |
9 #include "base/logging.h" | |
10 #include "base/sys_info.h" | |
11 #include "media/base/video_types.h" | |
12 #include "media/gpu/gpu_video_encode_accelerator_factory.h" | |
13 #include "mojo/public/cpp/bindings/strong_binding.h" | |
14 #include "mojo/public/cpp/bindings/type_converter.h" | |
15 #include "mojo/public/cpp/system/platform_handle.h" | |
16 | |
17 namespace chromeos { | |
18 namespace arc { | |
19 | |
20 GpuArcVideoEncodeAccelerator::GpuArcVideoEncodeAccelerator( | |
21 const gpu::GpuPreferences& gpu_preferences) | |
22 : gpu_preferences_(gpu_preferences) {} | |
23 | |
24 GpuArcVideoEncodeAccelerator::~GpuArcVideoEncodeAccelerator() = default; | |
25 | |
26 // VideoEncodeAccelerator::Client implementation. | |
27 void GpuArcVideoEncodeAccelerator::RequireBitstreamBuffers( | |
28 unsigned int input_count, | |
29 const gfx::Size& coded_size, | |
30 size_t output_buffer_size) { | |
31 DVLOG(2) << "RequireBitstreamBuffers(input_count=" << input_count | |
Pawel Osciak
2017/06/14 03:57:38
Not sure about your preference, but perhaps a macr
Owen Lin
2017/06/14 09:13:59
That's nice.
| |
32 << ", coded_size=" << coded_size.ToString() | |
33 << ", output_buffer_size=" << output_buffer_size << ")"; | |
34 DCHECK(client_); | |
35 coded_size_ = coded_size; | |
36 client_->RequireBitstreamBuffers(input_count, coded_size, output_buffer_size); | |
37 } | |
38 | |
39 void GpuArcVideoEncodeAccelerator::BitstreamBufferReady( | |
40 int32_t bitstream_buffer_id, | |
41 size_t payload_size, | |
42 bool key_frame, | |
43 base::TimeDelta timestamp) { | |
44 DVLOG(2) << "BitstreamBufferReady(id=" << bitstream_buffer_id << ")"; | |
45 DCHECK(client_); | |
46 client_->BitstreamBufferReady(bitstream_buffer_id, payload_size, key_frame, | |
47 timestamp.InMicroseconds()); | |
48 } | |
49 | |
50 void GpuArcVideoEncodeAccelerator::NotifyError(Error error) { | |
51 DVLOG(2) << "NotifyError(" << error << ")"; | |
52 DCHECK(client_); | |
53 client_->NotifyError(error); | |
54 } | |
55 | |
56 // ::arc::mojom::VideoEncodeAccelerator implementation. | |
57 void GpuArcVideoEncodeAccelerator::GetSupportedProfiles( | |
58 const GetSupportedProfilesCallback& callback) { | |
59 callback.Run(media::GpuVideoEncodeAcceleratorFactory::GetSupportedProfiles( | |
60 gpu_preferences_)); | |
61 } | |
62 | |
63 void GpuArcVideoEncodeAccelerator::Initialize( | |
64 VideoPixelFormat input_format, | |
65 const gfx::Size& visible_size, | |
66 VideoEncodeAccelerator::StorageType input_storage, | |
67 VideoCodecProfile output_profile, | |
68 uint32_t initial_bitrate, | |
69 VideoEncodeClientPtr client, | |
70 const InitializeCallback& callback) { | |
71 DVLOG(2) << "Initialize()"; | |
72 | |
73 if (!client) { | |
74 DLOG(ERROR) << "Invalid client"; | |
Pawel Osciak
2017/06/14 03:57:38
Perhaps LOG(ERROR)
Owen Lin
2017/06/14 09:13:59
Done.
| |
75 callback.Run(false); | |
76 return; | |
77 } | |
78 | |
79 input_pixel_format_ = static_cast<media::VideoPixelFormat>(input_format); | |
80 visible_size_ = visible_size; | |
81 accelerator_ = media::GpuVideoEncodeAcceleratorFactory::CreateVEA( | |
82 input_pixel_format_, visible_size_, | |
83 static_cast<media::VideoCodecProfile>(output_profile), initial_bitrate, | |
84 this, gpu_preferences_); | |
85 if (accelerator_ == nullptr) { | |
86 DLOG(ERROR) << "failed to create Accelerator."; | |
Pawel Osciak
2017/06/14 03:57:38
Failed to create a VideoEncodeAccelerator.
Owen Lin
2017/06/14 09:13:59
Done.
| |
87 callback.Run(false); | |
88 return; | |
89 } | |
90 client_ = std::move(client); | |
91 callback.Run(true); | |
92 } | |
93 | |
94 static void DropSharedMemory(std::unique_ptr<base::SharedMemory> shm) { | |
95 // Just let |shm| fall out of scope. | |
96 } | |
97 | |
98 void GpuArcVideoEncodeAccelerator::Encode( | |
99 mojo::ScopedHandle handle, | |
100 std::vector<::arc::VideoFramePlane> planes, | |
Pawel Osciak
2017/06/14 03:57:38
Could this be a const&?
Owen Lin
2017/06/14 09:13:59
The interface is defined by mojom. It is not const
| |
101 int64_t timestamp, | |
102 bool force_keyframe) { | |
103 DVLOG(2) << "Encode(timestamp=" << timestamp << ")"; | |
104 if (!accelerator_) { | |
105 DLOG(ERROR) << "Accelerator not initialized"; | |
106 return; | |
107 } | |
108 | |
109 if (planes.empty()) { // EOS | |
110 accelerator_->Encode(media::VideoFrame::CreateEOSFrame(), force_keyframe); | |
111 return; | |
112 } | |
113 | |
114 base::ScopedFD fd = UnwrapFdFromMojoHandle(std::move(handle)); | |
115 if (!fd.is_valid()) | |
116 return; | |
117 | |
118 size_t allocation_size = | |
119 media::VideoFrame::AllocationSize(input_pixel_format_, coded_size_); | |
120 | |
121 // TODO(rockot): Pass GUIDs through Mojo. https://crbug.com/713763. | |
122 // TODO(rockot): This fd comes from a mojo::ScopedHandle in | |
123 // GpuArcVideoService::BindSharedMemory. That should be passed through, | |
124 // rather than pulling out the fd. https://crbug.com/713763. | |
125 // TODO(rockot): Pass through a real size rather than |0|. | |
126 base::UnguessableToken guid = base::UnguessableToken::Create(); | |
127 base::SharedMemoryHandle shm_handle(base::FileDescriptor(fd.release(), true), | |
128 0u, guid); | |
129 auto shm = base::MakeUnique<base::SharedMemory>(shm_handle, true); | |
130 | |
131 base::CheckedNumeric<off_t> map_offset = planes[0].offset; | |
132 base::CheckedNumeric<size_t> map_size = allocation_size; | |
133 const uint32_t aligned_offset = | |
134 planes[0].offset % base::SysInfo::VMAllocationGranularity(); | |
135 map_offset -= aligned_offset; | |
136 map_size += aligned_offset; | |
137 | |
138 if (!map_offset.IsValid() || !map_size.IsValid()) { | |
139 DLOG(ERROR) << "Invalid map_offset or map_size"; | |
140 client_->NotifyError(Error::kInvalidArgumentError); | |
141 return; | |
142 } | |
143 if (!shm->MapAt(map_offset.ValueOrDie(), map_size.ValueOrDie())) { | |
144 DLOG(ERROR) << "Could not map memory"; | |
145 client_->NotifyError(Error::kPlatformFailureError); | |
146 return; | |
147 } | |
148 | |
149 uint8_t* shm_memory = reinterpret_cast<uint8_t*>(shm->memory()); | |
150 auto frame = media::VideoFrame::WrapExternalSharedMemory( | |
151 input_pixel_format_, coded_size_, gfx::Rect(visible_size_), visible_size_, | |
152 shm_memory + aligned_offset, allocation_size, shm_handle, | |
153 planes[0].offset, base::TimeDelta::FromMicroseconds(timestamp)); | |
154 | |
155 // Wrap |shm| in a callback and add it as a destruction observer, so it | |
156 // stays alive and mapped until |frame| goes out of scope. | |
157 frame->AddDestructionObserver( | |
158 base::Bind(&DropSharedMemory, base::Passed(&shm))); | |
159 accelerator_->Encode(frame, force_keyframe); | |
160 } | |
161 | |
162 void GpuArcVideoEncodeAccelerator::UseOutputBitstreamBuffer( | |
163 int32_t bitstream_buffer_id, | |
164 mojo::ScopedHandle shmem_fd, | |
165 uint32_t offset, | |
166 uint32_t size) { | |
167 DVLOG(2) << "UseOutputBitstreamBuffer(id=" << bitstream_buffer_id << ")"; | |
168 if (!accelerator_) { | |
169 DLOG(ERROR) << "Accelerator not initialized"; | |
170 return; | |
171 } | |
172 | |
173 base::ScopedFD fd = UnwrapFdFromMojoHandle(std::move(shmem_fd)); | |
174 if (!fd.is_valid()) | |
175 return; | |
176 | |
177 // TODO(rockot): Pass GUIDs through Mojo. https://crbug.com/713763. | |
178 // TODO(rockot): This fd comes from a mojo::ScopedHandle in | |
179 // GpuArcVideoService::BindSharedMemory. That should be passed through, | |
180 // rather than pulling out the fd. https://crbug.com/713763. | |
181 // TODO(rockot): Pass through a real size rather than |0|. | |
182 base::UnguessableToken guid = base::UnguessableToken::Create(); | |
183 base::SharedMemoryHandle shm_handle(base::FileDescriptor(fd.release(), true), | |
184 0u, guid); | |
185 accelerator_->UseOutputBitstreamBuffer( | |
186 media::BitstreamBuffer(bitstream_buffer_id, shm_handle, size, offset)); | |
187 } | |
188 | |
189 void GpuArcVideoEncodeAccelerator::RequestEncodingParametersChange( | |
190 uint32_t bitrate, | |
191 uint32_t framerate) { | |
192 DVLOG(2) << "RequestEncodingParametersChange(" << bitrate << ", " << framerate | |
193 << ")"; | |
194 if (!accelerator_) { | |
195 DLOG(ERROR) << "Accelerator not initialized"; | |
196 return; | |
197 } | |
198 accelerator_->RequestEncodingParametersChange(bitrate, framerate); | |
199 } | |
200 | |
201 base::ScopedFD GpuArcVideoEncodeAccelerator::UnwrapFdFromMojoHandle( | |
202 mojo::ScopedHandle handle) { | |
203 DCHECK(client_); | |
204 if (!handle.is_valid()) { | |
205 DLOG(ERROR) << "handle is invalid"; | |
206 client_->NotifyError(Error::kInvalidArgumentError); | |
207 return base::ScopedFD(); | |
208 } | |
209 | |
210 base::PlatformFile platform_file; | |
211 MojoResult mojo_result = | |
212 mojo::UnwrapPlatformFile(std::move(handle), &platform_file); | |
213 if (mojo_result != MOJO_RESULT_OK) { | |
214 DLOG(ERROR) << "UnwrapPlatformFile failed: " << mojo_result; | |
215 client_->NotifyError(Error::kPlatformFailureError); | |
216 return base::ScopedFD(); | |
217 } | |
218 | |
219 return base::ScopedFD(platform_file); | |
220 } | |
221 | |
222 } // namespace arc | |
223 } // namespace chromeos | |
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