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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 | |
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( | |
60 std::move(media::GpuVideoEncodeAcceleratorFactory::GetSupportedProfiles( | |
Luis Héctor Chávez
2017/06/07 16:02:36
nit: this std::move() is not needed since it's not
Owen Lin
2017/06/08 04:15:47
I see. Thanks.
| |
61 gpu_preferences_))); | |
62 } | |
63 | |
64 void GpuArcVideoEncodeAccelerator::Initialize( | |
65 VideoPixelFormat input_format, | |
66 const gfx::Size& visible_size, | |
67 VideoEncodeAccelerator::StorageType input_storage, | |
68 VideoCodecProfile output_profile, | |
69 uint32_t initial_bitrate, | |
70 VideoEncodeClientPtr client, | |
71 const InitializeCallback& callback) { | |
72 DVLOG(2) << "Initialize()"; | |
73 | |
74 if (!client) { | |
75 DLOG(ERROR) << "Invalid client"; | |
76 callback.Run(false); | |
77 return; | |
78 } | |
79 | |
80 input_pixel_format_ = static_cast<media::VideoPixelFormat>(input_format); | |
81 visible_size_ = visible_size; | |
82 accelerator_ = media::GpuVideoEncodeAcceleratorFactory::CreateVEA( | |
83 input_pixel_format_, visible_size_, | |
84 static_cast<media::VideoCodecProfile>(output_profile), initial_bitrate, | |
85 this, gpu_preferences_); | |
86 if (accelerator_ == nullptr) { | |
87 DLOG(ERROR) << "failed to create vea."; | |
Luis Héctor Chávez
2017/06/07 16:02:36
nit: s/vea/Accelerator/, for consistency with the
Owen Lin
2017/06/08 04:15:47
Done.
| |
88 callback.Run(false); | |
89 return; | |
90 } | |
91 client_ = std::move(client); | |
92 callback.Run(true); | |
93 } | |
94 | |
95 static void DropSharedMemory(std::unique_ptr<base::SharedMemory> shm) { | |
96 // Just let |shm| fall out of scope. | |
97 } | |
98 | |
99 void GpuArcVideoEncodeAccelerator::Encode( | |
100 mojo::ScopedHandle handle, | |
101 std::vector<::arc::VideoFramePlane> planes, | |
102 int64_t timestamp, | |
103 bool force_keyframe) { | |
104 DVLOG(2) << "Encode(timestamp=" << timestamp << ")"; | |
105 if (!accelerator_) { | |
106 DLOG(ERROR) << "Accelerator not initialized"; | |
107 return; | |
108 } | |
109 | |
110 scoped_refptr<media::VideoFrame> frame; | |
111 if (planes.empty()) { // EOS | |
112 frame = media::VideoFrame::CreateEOSFrame(); | |
Luis Héctor Chávez
2017/06/07 16:02:36
nit:
use guard clause pattern:
if (planes.empty(
Owen Lin
2017/06/08 04:15:46
Done.
| |
113 } else { | |
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( | |
128 base::FileDescriptor(fd.release(), true), 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 memroy"; | |
Luis Héctor Chávez
2017/06/07 16:17:36
nit: s/memroy/memory/
Owen Lin
2017/06/08 04:15:47
Done.
| |
145 client_->NotifyError(Error::kPlatformFailureError); | |
146 return; | |
147 } | |
148 | |
149 uint8_t* shm_memory = reinterpret_cast<uint8_t*>(shm->memory()); | |
150 frame = media::VideoFrame::WrapExternalSharedMemory( | |
151 input_pixel_format_, coded_size_, gfx::Rect(visible_size_), | |
152 visible_size_, 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 } | |
160 accelerator_->Encode(frame, force_keyframe); | |
161 } | |
162 | |
163 void GpuArcVideoEncodeAccelerator::UseOutputBitstreamBuffer( | |
164 int32_t bitstream_buffer_id, | |
165 mojo::ScopedHandle shmem_fd, | |
166 uint32_t offset, | |
167 uint32_t size) { | |
168 DVLOG(2) << "UseOutputBitstreamBuffer(id=" << bitstream_buffer_id << ")"; | |
169 if (!accelerator_) { | |
170 DLOG(ERROR) << "Accelerator not initialized"; | |
171 return; | |
172 } | |
173 | |
174 base::ScopedFD fd = UnwrapFdFromMojoHandle(std::move(shmem_fd)); | |
175 if (!fd.is_valid()) | |
176 return; | |
177 | |
178 // TODO(rockot): Pass GUIDs through Mojo. https://crbug.com/713763. | |
179 // TODO(rockot): This fd comes from a mojo::ScopedHandle in | |
180 // GpuArcVideoService::BindSharedMemory. That should be passed through, | |
181 // rather than pulling out the fd. https://crbug.com/713763. | |
182 // TODO(rockot): Pass through a real size rather than |0|. | |
183 base::UnguessableToken guid = base::UnguessableToken::Create(); | |
184 base::SharedMemoryHandle shm_handle(base::FileDescriptor(fd.release(), true), | |
185 0u, guid); | |
186 accelerator_->UseOutputBitstreamBuffer( | |
187 media::BitstreamBuffer(bitstream_buffer_id, shm_handle, size, offset)); | |
188 } | |
189 | |
190 void GpuArcVideoEncodeAccelerator::RequestEncodingParametersChange( | |
191 uint32_t bitrate, | |
192 uint32_t framerate) { | |
193 DVLOG(2) << "RequestEncodingParametersChange(" << bitrate << ", " << framerate | |
194 << ")"; | |
195 if (!accelerator_) { | |
196 DLOG(ERROR) << "Accelerator not initialized"; | |
197 return; | |
198 } | |
199 accelerator_->RequestEncodingParametersChange(bitrate, framerate); | |
200 } | |
201 | |
202 base::ScopedFD GpuArcVideoEncodeAccelerator::UnwrapFdFromMojoHandle( | |
203 mojo::ScopedHandle handle) { | |
204 DCHECK(client_); | |
205 if (!handle.is_valid()) { | |
206 DLOG(ERROR) << "handle is invalid"; | |
207 client_->NotifyError(Error::kInvalidArgumentError); | |
208 return base::ScopedFD(); | |
209 } | |
210 | |
211 base::PlatformFile platform_file; | |
212 MojoResult mojo_result = | |
213 mojo::UnwrapPlatformFile(std::move(handle), &platform_file); | |
214 if (mojo_result != MOJO_RESULT_OK) { | |
215 DLOG(ERROR) << "UnwrapPlatformFile failed: " << mojo_result; | |
216 client_->NotifyError(Error::kPlatformFailureError); | |
217 return base::ScopedFD(); | |
218 } | |
219 | |
220 return base::ScopedFD(platform_file); | |
221 } | |
222 | |
223 } // namespace arc | |
224 } // namespace chromeos | |
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