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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "media/capture/video/mac/video_capture_device_decklink_mac.h" | |
| 6 | |
| 7 #include <utility> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/macros.h" | |
| 11 #include "base/memory/ref_counted.h" | |
| 12 #include "base/strings/sys_string_conversions.h" | |
| 13 #include "base/synchronization/lock.h" | |
| 14 #include "third_party/decklink/mac/include/DeckLinkAPI.h" | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 // DeckLink SDK uses ScopedComPtr-style APIs. Chrome ScopedComPtr is only | |
| 19 // available for Windows builds. This is a verbatim knock-off of the needed | |
| 20 // parts of base::win::ScopedComPtr<> for ref counting. | |
| 21 template <class T> | |
| 22 class ScopedDeckLinkPtr : public scoped_refptr<T> { | |
| 23 private: | |
| 24 using scoped_refptr<T>::ptr_; | |
| 25 | |
| 26 public: | |
| 27 T** Receive() { | |
| 28 DCHECK(!ptr_) << "Object leak. Pointer must be NULL"; | |
| 29 return &ptr_; | |
| 30 } | |
| 31 | |
| 32 void** ReceiveVoid() { return reinterpret_cast<void**>(Receive()); } | |
| 33 | |
| 34 void Release() { | |
| 35 if (ptr_ != NULL) { | |
| 36 ptr_->Release(); | |
| 37 ptr_ = NULL; | |
| 38 } | |
| 39 } | |
| 40 }; | |
| 41 | |
| 42 // This class is used to interact directly with DeckLink SDK for video capture. | |
| 43 // Implements the reference counted interface IUnknown. Has a weak reference to | |
| 44 // VideoCaptureDeviceDeckLinkMac for sending captured frames, error messages and | |
| 45 // logs. | |
| 46 class DeckLinkCaptureDelegate | |
| 47 : public IDeckLinkInputCallback, | |
| 48 public base::RefCountedThreadSafe<DeckLinkCaptureDelegate> { | |
| 49 public: | |
| 50 DeckLinkCaptureDelegate( | |
| 51 const media::VideoCaptureDeviceDescriptor& device_descriptor, | |
| 52 media::VideoCaptureDeviceDeckLinkMac* frame_receiver); | |
| 53 | |
| 54 void AllocateAndStart(const media::VideoCaptureParams& params); | |
| 55 void StopAndDeAllocate(); | |
| 56 | |
| 57 // Remove the VideoCaptureDeviceDeckLinkMac's weak reference. | |
| 58 void ResetVideoCaptureDeviceReference(); | |
| 59 | |
| 60 private: | |
| 61 // IDeckLinkInputCallback interface implementation. | |
| 62 HRESULT VideoInputFormatChanged( | |
| 63 BMDVideoInputFormatChangedEvents notification_events, | |
| 64 IDeckLinkDisplayMode* new_display_mode, | |
| 65 BMDDetectedVideoInputFormatFlags detected_signal_flags) override; | |
| 66 HRESULT VideoInputFrameArrived( | |
| 67 IDeckLinkVideoInputFrame* video_frame, | |
| 68 IDeckLinkAudioInputPacket* audio_packet) override; | |
| 69 | |
| 70 // IUnknown interface implementation. | |
| 71 HRESULT QueryInterface(REFIID iid, void** ppv) override; | |
| 72 ULONG AddRef() override; | |
| 73 ULONG Release() override; | |
| 74 | |
| 75 // Forwarder to VideoCaptureDeviceDeckLinkMac::SendErrorString(). | |
| 76 void SendErrorString(const tracked_objects::Location& from_here, | |
| 77 const std::string& reason); | |
| 78 | |
| 79 // Forwarder to VideoCaptureDeviceDeckLinkMac::SendLogString(). | |
| 80 void SendLogString(const std::string& message); | |
| 81 | |
| 82 const media::VideoCaptureDeviceDescriptor device_descriptor_; | |
| 83 | |
| 84 // Protects concurrent setting and using of |frame_receiver_|. | |
| 85 base::Lock lock_; | |
| 86 // Weak reference to the captured frames client, used also for error messages | |
| 87 // and logging. Initialized on construction and used until cleared by calling | |
| 88 // ResetVideoCaptureDeviceReference(). | |
| 89 media::VideoCaptureDeviceDeckLinkMac* frame_receiver_; | |
| 90 | |
| 91 // This is used to control the video capturing device input interface. | |
| 92 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input_; | |
| 93 // |decklink_| represents a physical device attached to the host. | |
| 94 ScopedDeckLinkPtr<IDeckLink> decklink_; | |
| 95 | |
| 96 base::TimeTicks first_ref_time_; | |
| 97 | |
| 98 // Checks for Device (a.k.a. Audio) thread. | |
| 99 base::ThreadChecker thread_checker_; | |
| 100 | |
| 101 friend class scoped_refptr<DeckLinkCaptureDelegate>; | |
| 102 friend class base::RefCountedThreadSafe<DeckLinkCaptureDelegate>; | |
| 103 | |
| 104 ~DeckLinkCaptureDelegate() override; | |
| 105 | |
| 106 DISALLOW_COPY_AND_ASSIGN(DeckLinkCaptureDelegate); | |
| 107 }; | |
| 108 | |
| 109 static float GetDisplayModeFrameRate( | |
| 110 const ScopedDeckLinkPtr<IDeckLinkDisplayMode>& display_mode) { | |
| 111 BMDTimeValue time_value, time_scale; | |
| 112 float display_mode_frame_rate = 0.0f; | |
| 113 if (display_mode->GetFrameRate(&time_value, &time_scale) == S_OK && | |
| 114 time_value > 0) { | |
| 115 display_mode_frame_rate = static_cast<float>(time_scale) / time_value; | |
| 116 } | |
| 117 // Interlaced formats are going to be marked as double the frame rate, | |
| 118 // which follows the general naming convention. | |
| 119 if (display_mode->GetFieldDominance() == bmdLowerFieldFirst || | |
| 120 display_mode->GetFieldDominance() == bmdUpperFieldFirst) { | |
| 121 display_mode_frame_rate *= 2.0f; | |
| 122 } | |
| 123 return display_mode_frame_rate; | |
| 124 } | |
| 125 | |
| 126 DeckLinkCaptureDelegate::DeckLinkCaptureDelegate( | |
| 127 const media::VideoCaptureDeviceDescriptor& device_descriptor, | |
| 128 media::VideoCaptureDeviceDeckLinkMac* frame_receiver) | |
| 129 : device_descriptor_(device_descriptor), frame_receiver_(frame_receiver) {} | |
| 130 | |
| 131 DeckLinkCaptureDelegate::~DeckLinkCaptureDelegate() { | |
| 132 } | |
| 133 | |
| 134 void DeckLinkCaptureDelegate::AllocateAndStart( | |
| 135 const media::VideoCaptureParams& params) { | |
| 136 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 137 scoped_refptr<IDeckLinkIterator> decklink_iter( | |
| 138 CreateDeckLinkIteratorInstance()); | |
| 139 DLOG_IF(ERROR, !decklink_iter.get()) << "Error creating DeckLink iterator"; | |
| 140 if (!decklink_iter.get()) | |
| 141 return; | |
| 142 | |
| 143 ScopedDeckLinkPtr<IDeckLink> decklink_local; | |
| 144 while (decklink_iter->Next(decklink_local.Receive()) == S_OK) { | |
| 145 CFStringRef device_model_name = NULL; | |
| 146 if ((decklink_local->GetModelName(&device_model_name) == S_OK) || | |
| 147 (device_descriptor_.device_id == | |
| 148 base::SysCFStringRefToUTF8(device_model_name))) { | |
| 149 break; | |
| 150 } | |
| 151 } | |
| 152 if (!decklink_local.get()) { | |
| 153 SendErrorString(FROM_HERE, "Device id not found in the system"); | |
| 154 return; | |
| 155 } | |
| 156 | |
| 157 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input_local; | |
| 158 if (decklink_local->QueryInterface( | |
| 159 IID_IDeckLinkInput, decklink_input_local.ReceiveVoid()) != S_OK) { | |
| 160 SendErrorString(FROM_HERE, "Error querying input interface."); | |
| 161 return; | |
| 162 } | |
| 163 | |
| 164 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 165 if (decklink_input_local->GetDisplayModeIterator( | |
| 166 display_mode_iter.Receive()) != S_OK) { | |
| 167 SendErrorString(FROM_HERE, "Error creating Display Mode Iterator"); | |
| 168 return; | |
| 169 } | |
| 170 | |
| 171 ScopedDeckLinkPtr<IDeckLinkDisplayMode> chosen_display_mode; | |
| 172 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 173 float min_diff = FLT_MAX; | |
| 174 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 175 const float diff = labs(display_mode->GetWidth() - | |
| 176 params.requested_format.frame_size.width()) + | |
| 177 labs(params.requested_format.frame_size.height() - | |
| 178 display_mode->GetHeight()) + | |
| 179 fabs(params.requested_format.frame_rate - | |
| 180 GetDisplayModeFrameRate(display_mode)); | |
| 181 if (diff < min_diff) { | |
| 182 chosen_display_mode = display_mode; | |
| 183 min_diff = diff; | |
| 184 } | |
| 185 display_mode.Release(); | |
| 186 } | |
| 187 if (!chosen_display_mode.get()) { | |
| 188 SendErrorString(FROM_HERE, "Could not find a display mode"); | |
| 189 return; | |
| 190 } | |
| 191 #if !defined(NDEBUG) | |
| 192 DVLOG(1) << "Requested format: " | |
| 193 << media::VideoCaptureFormat::ToString(params.requested_format); | |
| 194 CFStringRef format_name = NULL; | |
| 195 if (chosen_display_mode->GetName(&format_name) == S_OK) | |
| 196 DVLOG(1) << "Chosen format: " << base::SysCFStringRefToUTF8(format_name); | |
| 197 #endif | |
| 198 | |
| 199 // Enable video input. Configure for no input video format change detection, | |
| 200 // this in turn will disable calls to VideoInputFormatChanged(). | |
| 201 if (decklink_input_local->EnableVideoInput( | |
| 202 chosen_display_mode->GetDisplayMode(), bmdFormat8BitYUV, | |
| 203 bmdVideoInputFlagDefault) != S_OK) { | |
| 204 SendErrorString(FROM_HERE, "Could not select the video format we like."); | |
| 205 return; | |
| 206 } | |
| 207 | |
| 208 decklink_input_local->SetCallback(this); | |
| 209 if (decklink_input_local->StartStreams() != S_OK) | |
| 210 SendErrorString(FROM_HERE, "Could not start capturing"); | |
| 211 | |
| 212 decklink_.swap(decklink_local); | |
| 213 decklink_input_.swap(decklink_input_local); | |
| 214 } | |
| 215 | |
| 216 void DeckLinkCaptureDelegate::StopAndDeAllocate() { | |
| 217 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 218 if (!decklink_input_.get()) | |
| 219 return; | |
| 220 if (decklink_input_->StopStreams() != S_OK) | |
| 221 SendLogString("Problem stopping capture."); | |
| 222 decklink_input_->SetCallback(NULL); | |
| 223 decklink_input_->DisableVideoInput(); | |
| 224 decklink_input_.Release(); | |
| 225 decklink_.Release(); | |
| 226 ResetVideoCaptureDeviceReference(); | |
| 227 } | |
| 228 | |
| 229 HRESULT DeckLinkCaptureDelegate::VideoInputFormatChanged( | |
| 230 BMDVideoInputFormatChangedEvents notification_events, | |
| 231 IDeckLinkDisplayMode* new_display_mode, | |
| 232 BMDDetectedVideoInputFormatFlags detected_signal_flags) { | |
| 233 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 234 return S_OK; | |
| 235 } | |
| 236 | |
| 237 HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived( | |
| 238 IDeckLinkVideoInputFrame* video_frame, | |
| 239 IDeckLinkAudioInputPacket* /* audio_packet */) { | |
| 240 // Capture frames are manipulated as an IDeckLinkVideoFrame. | |
| 241 uint8_t* video_data = NULL; | |
| 242 video_frame->GetBytes(reinterpret_cast<void**>(&video_data)); | |
| 243 | |
| 244 media::VideoPixelFormat pixel_format = | |
| 245 media::PIXEL_FORMAT_UNKNOWN; | |
| 246 switch (video_frame->GetPixelFormat()) { | |
| 247 case bmdFormat8BitYUV: // A.k.a. '2vuy'; | |
| 248 pixel_format = media::PIXEL_FORMAT_UYVY; | |
| 249 break; | |
| 250 case bmdFormat8BitARGB: | |
| 251 pixel_format = media::PIXEL_FORMAT_ARGB; | |
| 252 break; | |
| 253 default: | |
| 254 SendErrorString(FROM_HERE, "Unsupported pixel format"); | |
| 255 break; | |
| 256 } | |
| 257 | |
| 258 const media::VideoCaptureFormat capture_format( | |
| 259 gfx::Size(video_frame->GetWidth(), video_frame->GetHeight()), | |
| 260 0.0f, // Frame rate is not needed for captured data callback. | |
| 261 pixel_format); | |
| 262 base::TimeTicks now = base::TimeTicks::Now(); | |
| 263 if (first_ref_time_.is_null()) | |
| 264 first_ref_time_ = now; | |
| 265 base::AutoLock lock(lock_); | |
| 266 if (frame_receiver_) { | |
| 267 const BMDTimeScale micros_time_scale = base::Time::kMicrosecondsPerSecond; | |
| 268 BMDTimeValue frame_time; | |
| 269 BMDTimeValue frame_duration; | |
| 270 base::TimeDelta timestamp; | |
| 271 if (SUCCEEDED(video_frame->GetStreamTime(&frame_time, &frame_duration, | |
| 272 micros_time_scale))) { | |
| 273 timestamp = base::TimeDelta::FromMicroseconds(frame_time); | |
| 274 } else { | |
| 275 timestamp = now - first_ref_time_; | |
| 276 } | |
| 277 frame_receiver_->OnIncomingCapturedData( | |
| 278 video_data, video_frame->GetRowBytes() * video_frame->GetHeight(), | |
| 279 capture_format, | |
| 280 0, // Rotation. | |
| 281 now, timestamp); | |
| 282 } | |
| 283 return S_OK; | |
| 284 } | |
| 285 | |
| 286 HRESULT DeckLinkCaptureDelegate::QueryInterface(REFIID iid, void** ppv) { | |
| 287 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 288 CFUUIDBytes iunknown = CFUUIDGetUUIDBytes(IUnknownUUID); | |
| 289 if (memcmp(&iid, &iunknown, sizeof(REFIID)) == 0 || | |
| 290 memcmp(&iid, &IID_IDeckLinkInputCallback, sizeof(REFIID)) == 0) { | |
| 291 *ppv = static_cast<IDeckLinkInputCallback*>(this); | |
| 292 AddRef(); | |
| 293 return S_OK; | |
| 294 } | |
| 295 return E_NOINTERFACE; | |
| 296 } | |
| 297 | |
| 298 ULONG DeckLinkCaptureDelegate::AddRef() { | |
| 299 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 300 base::RefCountedThreadSafe<DeckLinkCaptureDelegate>::AddRef(); | |
| 301 return 1; | |
| 302 } | |
| 303 | |
| 304 ULONG DeckLinkCaptureDelegate::Release() { | |
| 305 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 306 bool ret_value = !HasOneRef(); | |
| 307 base::RefCountedThreadSafe<DeckLinkCaptureDelegate>::Release(); | |
| 308 return ret_value; | |
| 309 } | |
| 310 | |
| 311 void DeckLinkCaptureDelegate::SendErrorString( | |
| 312 const tracked_objects::Location& from_here, | |
| 313 const std::string& reason) { | |
| 314 base::AutoLock lock(lock_); | |
| 315 if (frame_receiver_) | |
| 316 frame_receiver_->SendErrorString(from_here, reason); | |
| 317 } | |
| 318 | |
| 319 void DeckLinkCaptureDelegate::SendLogString(const std::string& message) { | |
| 320 base::AutoLock lock(lock_); | |
| 321 if (frame_receiver_) | |
| 322 frame_receiver_->SendLogString(message); | |
| 323 } | |
| 324 | |
| 325 void DeckLinkCaptureDelegate::ResetVideoCaptureDeviceReference() { | |
| 326 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 327 base::AutoLock lock(lock_); | |
| 328 frame_receiver_ = NULL; | |
| 329 } | |
| 330 | |
| 331 } // namespace | |
| 332 | |
| 333 namespace media { | |
| 334 | |
| 335 static std::string JoinDeviceNameAndFormat(CFStringRef name, | |
| 336 CFStringRef format) { | |
| 337 return base::SysCFStringRefToUTF8(name) + " - " + | |
| 338 base::SysCFStringRefToUTF8(format); | |
| 339 } | |
| 340 | |
| 341 // static | |
| 342 void VideoCaptureDeviceDeckLinkMac::EnumerateDevices( | |
| 343 VideoCaptureDeviceDescriptors* device_descriptors) { | |
| 344 scoped_refptr<IDeckLinkIterator> decklink_iter( | |
| 345 CreateDeckLinkIteratorInstance()); | |
| 346 // At this point, not being able to create a DeckLink iterator means that | |
| 347 // there are no Blackmagic DeckLink devices in the system, don't print error. | |
| 348 DVLOG_IF(1, !decklink_iter.get()) << "Could not create DeckLink iterator"; | |
| 349 if (!decklink_iter.get()) | |
| 350 return; | |
| 351 | |
| 352 ScopedDeckLinkPtr<IDeckLink> decklink; | |
| 353 while (decklink_iter->Next(decklink.Receive()) == S_OK) { | |
| 354 ScopedDeckLinkPtr<IDeckLink> decklink_local; | |
| 355 decklink_local.swap(decklink); | |
| 356 | |
| 357 CFStringRef device_model_name = NULL; | |
| 358 HRESULT hr = decklink_local->GetModelName(&device_model_name); | |
| 359 DVLOG_IF(1, hr != S_OK) << "Error reading Blackmagic device model name"; | |
| 360 CFStringRef device_display_name = NULL; | |
| 361 hr = decklink_local->GetDisplayName(&device_display_name); | |
| 362 DVLOG_IF(1, hr != S_OK) << "Error reading Blackmagic device display name"; | |
| 363 DVLOG_IF(1, hr == S_OK) << "Blackmagic device found with name: " | |
| 364 << base::SysCFStringRefToUTF8(device_display_name); | |
| 365 | |
| 366 if (!device_model_name && !device_display_name) | |
| 367 continue; | |
| 368 | |
| 369 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input; | |
| 370 if (decklink_local->QueryInterface(IID_IDeckLinkInput, | |
| 371 decklink_input.ReceiveVoid()) != S_OK) { | |
| 372 DLOG(ERROR) << "Error Blackmagic querying input interface."; | |
| 373 return; | |
| 374 } | |
| 375 | |
| 376 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 377 if (decklink_input->GetDisplayModeIterator(display_mode_iter.Receive()) != | |
| 378 S_OK) { | |
| 379 continue; | |
| 380 } | |
| 381 | |
| 382 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 383 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 384 CFStringRef format_name = NULL; | |
| 385 if (display_mode->GetName(&format_name) == S_OK) { | |
| 386 VideoCaptureDeviceDescriptor descriptor; | |
| 387 descriptor.display_name = | |
| 388 JoinDeviceNameAndFormat(device_display_name, format_name); | |
| 389 descriptor.device_id = | |
| 390 JoinDeviceNameAndFormat(device_model_name, format_name); | |
| 391 descriptor.capture_api = VideoCaptureApi::MACOSX_DECKLINK; | |
| 392 descriptor.transport_type = VideoCaptureTransportType::OTHER_TRANSPORT; | |
| 393 device_descriptors->push_back(descriptor); | |
| 394 DVLOG(1) << "Blackmagic camera enumerated: " << descriptor.display_name; | |
| 395 } | |
| 396 display_mode.Release(); | |
| 397 } | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 // static | |
| 402 void VideoCaptureDeviceDeckLinkMac::EnumerateDeviceCapabilities( | |
| 403 const VideoCaptureDeviceDescriptor& device, | |
| 404 VideoCaptureFormats* supported_formats) { | |
| 405 scoped_refptr<IDeckLinkIterator> decklink_iter( | |
| 406 CreateDeckLinkIteratorInstance()); | |
| 407 DLOG_IF(ERROR, !decklink_iter.get()) << "Error creating DeckLink iterator"; | |
| 408 if (!decklink_iter.get()) | |
| 409 return; | |
| 410 | |
| 411 ScopedDeckLinkPtr<IDeckLink> decklink; | |
| 412 while (decklink_iter->Next(decklink.Receive()) == S_OK) { | |
| 413 ScopedDeckLinkPtr<IDeckLink> decklink_local; | |
| 414 decklink_local.swap(decklink); | |
| 415 | |
| 416 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input; | |
| 417 if (decklink_local->QueryInterface(IID_IDeckLinkInput, | |
| 418 decklink_input.ReceiveVoid()) != S_OK) { | |
| 419 DLOG(ERROR) << "Error Blackmagic querying input interface."; | |
| 420 return; | |
| 421 } | |
| 422 | |
| 423 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 424 if (decklink_input->GetDisplayModeIterator(display_mode_iter.Receive()) != | |
| 425 S_OK) { | |
| 426 continue; | |
| 427 } | |
| 428 | |
| 429 CFStringRef device_model_name = NULL; | |
| 430 if (decklink_local->GetModelName(&device_model_name) != S_OK) | |
| 431 continue; | |
| 432 | |
| 433 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 434 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 435 CFStringRef format_name = NULL; | |
| 436 if (display_mode->GetName(&format_name) == S_OK && | |
| 437 device.device_id != | |
| 438 JoinDeviceNameAndFormat(device_model_name, format_name)) { | |
| 439 display_mode.Release(); | |
| 440 continue; | |
| 441 } | |
| 442 | |
| 443 // IDeckLinkDisplayMode does not have information on pixel format, this | |
| 444 // is only available on capture. | |
| 445 const media::VideoCaptureFormat format( | |
| 446 gfx::Size(display_mode->GetWidth(), display_mode->GetHeight()), | |
| 447 GetDisplayModeFrameRate(display_mode), | |
| 448 PIXEL_FORMAT_UNKNOWN); | |
| 449 supported_formats->push_back(format); | |
| 450 DVLOG(2) << device.display_name << " " | |
| 451 << VideoCaptureFormat::ToString(format); | |
| 452 display_mode.Release(); | |
| 453 } | |
| 454 return; | |
| 455 } | |
| 456 } | |
| 457 | |
| 458 VideoCaptureDeviceDeckLinkMac::VideoCaptureDeviceDeckLinkMac( | |
| 459 const VideoCaptureDeviceDescriptor& device_descriptor) | |
| 460 : decklink_capture_delegate_( | |
| 461 new DeckLinkCaptureDelegate(device_descriptor, this)) {} | |
| 462 | |
| 463 VideoCaptureDeviceDeckLinkMac::~VideoCaptureDeviceDeckLinkMac() { | |
| 464 decklink_capture_delegate_->ResetVideoCaptureDeviceReference(); | |
| 465 } | |
| 466 | |
| 467 void VideoCaptureDeviceDeckLinkMac::OnIncomingCapturedData( | |
| 468 const uint8_t* data, | |
| 469 size_t length, | |
| 470 const VideoCaptureFormat& frame_format, | |
| 471 int rotation, // Clockwise. | |
| 472 base::TimeTicks reference_time, | |
| 473 base::TimeDelta timestamp) { | |
| 474 base::AutoLock lock(lock_); | |
| 475 if (client_) { | |
| 476 client_->OnIncomingCapturedData(data, length, frame_format, rotation, | |
| 477 reference_time, timestamp); | |
| 478 } | |
| 479 } | |
| 480 | |
| 481 void VideoCaptureDeviceDeckLinkMac::SendErrorString( | |
| 482 const tracked_objects::Location& from_here, | |
| 483 const std::string& reason) { | |
| 484 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 485 base::AutoLock lock(lock_); | |
| 486 if (client_) | |
| 487 client_->OnError(from_here, reason); | |
| 488 } | |
| 489 | |
| 490 void VideoCaptureDeviceDeckLinkMac::SendLogString(const std::string& message) { | |
| 491 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 492 base::AutoLock lock(lock_); | |
| 493 if (client_) | |
| 494 client_->OnLog(message); | |
| 495 } | |
| 496 | |
| 497 void VideoCaptureDeviceDeckLinkMac::AllocateAndStart( | |
| 498 const VideoCaptureParams& params, | |
| 499 std::unique_ptr<VideoCaptureDevice::Client> client) { | |
| 500 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 501 client_ = std::move(client); | |
| 502 if (decklink_capture_delegate_.get()) | |
| 503 decklink_capture_delegate_->AllocateAndStart(params); | |
| 504 } | |
| 505 | |
| 506 void VideoCaptureDeviceDeckLinkMac::StopAndDeAllocate() { | |
| 507 if (decklink_capture_delegate_.get()) | |
| 508 decklink_capture_delegate_->StopAndDeAllocate(); | |
| 509 } | |
| 510 | |
| 511 } // namespace media | |
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Chromium Code Reviews
Issue 2214533002:
move //media/capture to //device/capture (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master