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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(const media::VideoCaptureDevice::Name& device_name, | |
| 51 media::VideoCaptureDeviceDeckLinkMac* frame_receiver); | |
| 52 | |
| 53 void AllocateAndStart(const media::VideoCaptureParams& params); | |
| 54 void StopAndDeAllocate(); | |
| 55 | |
| 56 // Remove the VideoCaptureDeviceDeckLinkMac's weak reference. | |
| 57 void ResetVideoCaptureDeviceReference(); | |
| 58 | |
| 59 private: | |
| 60 // IDeckLinkInputCallback interface implementation. | |
| 61 HRESULT VideoInputFormatChanged( | |
| 62 BMDVideoInputFormatChangedEvents notification_events, | |
| 63 IDeckLinkDisplayMode* new_display_mode, | |
| 64 BMDDetectedVideoInputFormatFlags detected_signal_flags) override; | |
| 65 HRESULT VideoInputFrameArrived( | |
| 66 IDeckLinkVideoInputFrame* video_frame, | |
| 67 IDeckLinkAudioInputPacket* audio_packet) override; | |
| 68 | |
| 69 // IUnknown interface implementation. | |
| 70 HRESULT QueryInterface(REFIID iid, void** ppv) override; | |
| 71 ULONG AddRef() override; | |
| 72 ULONG Release() override; | |
| 73 | |
| 74 // Forwarder to VideoCaptureDeviceDeckLinkMac::SendErrorString(). | |
| 75 void SendErrorString(const tracked_objects::Location& from_here, | |
| 76 const std::string& reason); | |
| 77 | |
| 78 // Forwarder to VideoCaptureDeviceDeckLinkMac::SendLogString(). | |
| 79 void SendLogString(const std::string& message); | |
| 80 | |
| 81 const media::VideoCaptureDevice::Name device_name_; | |
| 82 | |
| 83 // Protects concurrent setting and using of |frame_receiver_|. | |
| 84 base::Lock lock_; | |
| 85 // Weak reference to the captured frames client, used also for error messages | |
| 86 // and logging. Initialized on construction and used until cleared by calling | |
| 87 // ResetVideoCaptureDeviceReference(). | |
| 88 media::VideoCaptureDeviceDeckLinkMac* frame_receiver_; | |
| 89 | |
| 90 // This is used to control the video capturing device input interface. | |
| 91 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input_; | |
| 92 // |decklink_| represents a physical device attached to the host. | |
| 93 ScopedDeckLinkPtr<IDeckLink> decklink_; | |
| 94 | |
| 95 base::TimeTicks first_ref_time_; | |
| 96 | |
| 97 // Checks for Device (a.k.a. Audio) thread. | |
| 98 base::ThreadChecker thread_checker_; | |
| 99 | |
| 100 friend class scoped_refptr<DeckLinkCaptureDelegate>; | |
| 101 friend class base::RefCountedThreadSafe<DeckLinkCaptureDelegate>; | |
| 102 | |
| 103 ~DeckLinkCaptureDelegate() override; | |
| 104 | |
| 105 DISALLOW_COPY_AND_ASSIGN(DeckLinkCaptureDelegate); | |
| 106 }; | |
| 107 | |
| 108 static float GetDisplayModeFrameRate( | |
| 109 const ScopedDeckLinkPtr<IDeckLinkDisplayMode>& display_mode) { | |
| 110 BMDTimeValue time_value, time_scale; | |
| 111 float display_mode_frame_rate = 0.0f; | |
| 112 if (display_mode->GetFrameRate(&time_value, &time_scale) == S_OK && | |
| 113 time_value > 0) { | |
| 114 display_mode_frame_rate = static_cast<float>(time_scale) / time_value; | |
| 115 } | |
| 116 // Interlaced formats are going to be marked as double the frame rate, | |
| 117 // which follows the general naming convention. | |
| 118 if (display_mode->GetFieldDominance() == bmdLowerFieldFirst || | |
| 119 display_mode->GetFieldDominance() == bmdUpperFieldFirst) { | |
| 120 display_mode_frame_rate *= 2.0f; | |
| 121 } | |
| 122 return display_mode_frame_rate; | |
| 123 } | |
| 124 | |
| 125 DeckLinkCaptureDelegate::DeckLinkCaptureDelegate( | |
| 126 const media::VideoCaptureDevice::Name& device_name, | |
| 127 media::VideoCaptureDeviceDeckLinkMac* frame_receiver) | |
| 128 : device_name_(device_name), frame_receiver_(frame_receiver) { | |
| 129 } | |
| 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_name_.id() == base::SysCFStringRefToUTF8(device_model_name))) { | |
| 148 break; | |
| 149 } | |
| 150 } | |
| 151 if (!decklink_local.get()) { | |
| 152 SendErrorString(FROM_HERE, "Device id not found in the system"); | |
| 153 return; | |
| 154 } | |
| 155 | |
| 156 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input_local; | |
| 157 if (decklink_local->QueryInterface( | |
| 158 IID_IDeckLinkInput, decklink_input_local.ReceiveVoid()) != S_OK) { | |
| 159 SendErrorString(FROM_HERE, "Error querying input interface."); | |
| 160 return; | |
| 161 } | |
| 162 | |
| 163 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 164 if (decklink_input_local->GetDisplayModeIterator( | |
| 165 display_mode_iter.Receive()) != S_OK) { | |
| 166 SendErrorString(FROM_HERE, "Error creating Display Mode Iterator"); | |
| 167 return; | |
| 168 } | |
| 169 | |
| 170 ScopedDeckLinkPtr<IDeckLinkDisplayMode> chosen_display_mode; | |
| 171 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 172 float min_diff = FLT_MAX; | |
| 173 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 174 const float diff = labs(display_mode->GetWidth() - | |
| 175 params.requested_format.frame_size.width()) + | |
| 176 labs(params.requested_format.frame_size.height() - | |
| 177 display_mode->GetHeight()) + | |
| 178 fabs(params.requested_format.frame_rate - | |
| 179 GetDisplayModeFrameRate(display_mode)); | |
| 180 if (diff < min_diff) { | |
| 181 chosen_display_mode = display_mode; | |
| 182 min_diff = diff; | |
| 183 } | |
| 184 display_mode.Release(); | |
| 185 } | |
| 186 if (!chosen_display_mode.get()) { | |
| 187 SendErrorString(FROM_HERE, "Could not find a display mode"); | |
| 188 return; | |
| 189 } | |
| 190 #if !defined(NDEBUG) | |
| 191 DVLOG(1) << "Requested format: " | |
| 192 << media::VideoCaptureFormat::ToString(params.requested_format); | |
| 193 CFStringRef format_name = NULL; | |
| 194 if (chosen_display_mode->GetName(&format_name) == S_OK) | |
| 195 DVLOG(1) << "Chosen format: " << base::SysCFStringRefToUTF8(format_name); | |
| 196 #endif | |
| 197 | |
| 198 // Enable video input. Configure for no input video format change detection, | |
| 199 // this in turn will disable calls to VideoInputFormatChanged(). | |
| 200 if (decklink_input_local->EnableVideoInput( | |
| 201 chosen_display_mode->GetDisplayMode(), bmdFormat8BitYUV, | |
| 202 bmdVideoInputFlagDefault) != S_OK) { | |
| 203 SendErrorString(FROM_HERE, "Could not select the video format we like."); | |
| 204 return; | |
| 205 } | |
| 206 | |
| 207 decklink_input_local->SetCallback(this); | |
| 208 if (decklink_input_local->StartStreams() != S_OK) | |
| 209 SendErrorString(FROM_HERE, "Could not start capturing"); | |
| 210 | |
| 211 decklink_.swap(decklink_local); | |
| 212 decklink_input_.swap(decklink_input_local); | |
| 213 } | |
| 214 | |
| 215 void DeckLinkCaptureDelegate::StopAndDeAllocate() { | |
| 216 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 217 if (!decklink_input_.get()) | |
| 218 return; | |
| 219 if (decklink_input_->StopStreams() != S_OK) | |
| 220 SendLogString("Problem stopping capture."); | |
| 221 decklink_input_->SetCallback(NULL); | |
| 222 decklink_input_->DisableVideoInput(); | |
| 223 decklink_input_.Release(); | |
| 224 decklink_.Release(); | |
| 225 ResetVideoCaptureDeviceReference(); | |
| 226 } | |
| 227 | |
| 228 HRESULT DeckLinkCaptureDelegate::VideoInputFormatChanged( | |
| 229 BMDVideoInputFormatChangedEvents notification_events, | |
| 230 IDeckLinkDisplayMode* new_display_mode, | |
| 231 BMDDetectedVideoInputFormatFlags detected_signal_flags) { | |
| 232 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 233 return S_OK; | |
| 234 } | |
| 235 | |
| 236 HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived( | |
| 237 IDeckLinkVideoInputFrame* video_frame, | |
| 238 IDeckLinkAudioInputPacket* /* audio_packet */) { | |
| 239 // Capture frames are manipulated as an IDeckLinkVideoFrame. | |
| 240 uint8_t* video_data = NULL; | |
| 241 video_frame->GetBytes(reinterpret_cast<void**>(&video_data)); | |
| 242 | |
| 243 media::VideoPixelFormat pixel_format = | |
| 244 media::PIXEL_FORMAT_UNKNOWN; | |
| 245 switch (video_frame->GetPixelFormat()) { | |
| 246 case bmdFormat8BitYUV: // A.k.a. '2vuy'; | |
| 247 pixel_format = media::PIXEL_FORMAT_UYVY; | |
| 248 break; | |
| 249 case bmdFormat8BitARGB: | |
| 250 pixel_format = media::PIXEL_FORMAT_ARGB; | |
| 251 break; | |
| 252 default: | |
| 253 SendErrorString(FROM_HERE, "Unsupported pixel format"); | |
| 254 break; | |
| 255 } | |
| 256 | |
| 257 const media::VideoCaptureFormat capture_format( | |
| 258 gfx::Size(video_frame->GetWidth(), video_frame->GetHeight()), | |
| 259 0.0f, // Frame rate is not needed for captured data callback. | |
| 260 pixel_format); | |
| 261 base::TimeTicks now = base::TimeTicks::Now(); | |
| 262 if (first_ref_time_.is_null()) | |
| 263 first_ref_time_ = now; | |
| 264 base::AutoLock lock(lock_); | |
| 265 if (frame_receiver_) { | |
| 266 const BMDTimeScale micros_time_scale = base::Time::kMicrosecondsPerSecond; | |
| 267 BMDTimeValue frame_time; | |
| 268 BMDTimeValue frame_duration; | |
| 269 base::TimeDelta timestamp; | |
| 270 if (SUCCEEDED(video_frame->GetStreamTime(&frame_time, &frame_duration, | |
| 271 micros_time_scale))) { | |
| 272 timestamp = base::TimeDelta::FromMicroseconds(frame_time); | |
| 273 } else { | |
| 274 timestamp = now - first_ref_time_; | |
| 275 } | |
| 276 frame_receiver_->OnIncomingCapturedData( | |
| 277 video_data, video_frame->GetRowBytes() * video_frame->GetHeight(), | |
| 278 capture_format, | |
| 279 0, // Rotation. | |
| 280 now, timestamp); | |
| 281 } | |
| 282 return S_OK; | |
| 283 } | |
| 284 | |
| 285 HRESULT DeckLinkCaptureDelegate::QueryInterface(REFIID iid, void** ppv) { | |
| 286 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 287 CFUUIDBytes iunknown = CFUUIDGetUUIDBytes(IUnknownUUID); | |
| 288 if (memcmp(&iid, &iunknown, sizeof(REFIID)) == 0 || | |
| 289 memcmp(&iid, &IID_IDeckLinkInputCallback, sizeof(REFIID)) == 0) { | |
| 290 *ppv = static_cast<IDeckLinkInputCallback*>(this); | |
| 291 AddRef(); | |
| 292 return S_OK; | |
| 293 } | |
| 294 return E_NOINTERFACE; | |
| 295 } | |
| 296 | |
| 297 ULONG DeckLinkCaptureDelegate::AddRef() { | |
| 298 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 299 base::RefCountedThreadSafe<DeckLinkCaptureDelegate>::AddRef(); | |
| 300 return 1; | |
| 301 } | |
| 302 | |
| 303 ULONG DeckLinkCaptureDelegate::Release() { | |
| 304 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 305 bool ret_value = !HasOneRef(); | |
| 306 base::RefCountedThreadSafe<DeckLinkCaptureDelegate>::Release(); | |
| 307 return ret_value; | |
| 308 } | |
| 309 | |
| 310 void DeckLinkCaptureDelegate::SendErrorString( | |
| 311 const tracked_objects::Location& from_here, | |
| 312 const std::string& reason) { | |
| 313 base::AutoLock lock(lock_); | |
| 314 if (frame_receiver_) | |
| 315 frame_receiver_->SendErrorString(from_here, reason); | |
| 316 } | |
| 317 | |
| 318 void DeckLinkCaptureDelegate::SendLogString(const std::string& message) { | |
| 319 base::AutoLock lock(lock_); | |
| 320 if (frame_receiver_) | |
| 321 frame_receiver_->SendLogString(message); | |
| 322 } | |
| 323 | |
| 324 void DeckLinkCaptureDelegate::ResetVideoCaptureDeviceReference() { | |
| 325 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 326 base::AutoLock lock(lock_); | |
| 327 frame_receiver_ = NULL; | |
| 328 } | |
| 329 | |
| 330 } // namespace | |
| 331 | |
| 332 namespace media { | |
| 333 | |
| 334 static std::string JoinDeviceNameAndFormat(CFStringRef name, | |
| 335 CFStringRef format) { | |
| 336 return base::SysCFStringRefToUTF8(name) + " - " + | |
| 337 base::SysCFStringRefToUTF8(format); | |
| 338 } | |
| 339 | |
| 340 // static | |
| 341 void VideoCaptureDeviceDeckLinkMac::EnumerateDevices( | |
| 342 VideoCaptureDevice::Names* device_names) { | |
| 343 scoped_refptr<IDeckLinkIterator> decklink_iter( | |
| 344 CreateDeckLinkIteratorInstance()); | |
| 345 // At this point, not being able to create a DeckLink iterator means that | |
| 346 // there are no Blackmagic DeckLink devices in the system, don't print error. | |
| 347 DVLOG_IF(1, !decklink_iter.get()) << "Could not create DeckLink iterator"; | |
| 348 if (!decklink_iter.get()) | |
| 349 return; | |
| 350 | |
| 351 ScopedDeckLinkPtr<IDeckLink> decklink; | |
| 352 while (decklink_iter->Next(decklink.Receive()) == S_OK) { | |
| 353 ScopedDeckLinkPtr<IDeckLink> decklink_local; | |
| 354 decklink_local.swap(decklink); | |
| 355 | |
| 356 CFStringRef device_model_name = NULL; | |
| 357 HRESULT hr = decklink_local->GetModelName(&device_model_name); | |
| 358 DVLOG_IF(1, hr != S_OK) << "Error reading Blackmagic device model name"; | |
| 359 CFStringRef device_display_name = NULL; | |
| 360 hr = decklink_local->GetDisplayName(&device_display_name); | |
| 361 DVLOG_IF(1, hr != S_OK) << "Error reading Blackmagic device display name"; | |
| 362 DVLOG_IF(1, hr == S_OK) << "Blackmagic device found with name: " | |
| 363 << base::SysCFStringRefToUTF8(device_display_name); | |
| 364 | |
| 365 if (!device_model_name && !device_display_name) | |
| 366 continue; | |
| 367 | |
| 368 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input; | |
| 369 if (decklink_local->QueryInterface(IID_IDeckLinkInput, | |
| 370 decklink_input.ReceiveVoid()) != S_OK) { | |
| 371 DLOG(ERROR) << "Error Blackmagic querying input interface."; | |
| 372 return; | |
| 373 } | |
| 374 | |
| 375 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 376 if (decklink_input->GetDisplayModeIterator(display_mode_iter.Receive()) != | |
| 377 S_OK) { | |
| 378 continue; | |
| 379 } | |
| 380 | |
| 381 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 382 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 383 CFStringRef format_name = NULL; | |
| 384 if (display_mode->GetName(&format_name) == S_OK) { | |
| 385 VideoCaptureDevice::Name name( | |
| 386 JoinDeviceNameAndFormat(device_display_name, format_name), | |
| 387 JoinDeviceNameAndFormat(device_model_name, format_name), | |
| 388 VideoCaptureDevice::Name::DECKLINK, | |
| 389 VideoCaptureDevice::Name::OTHER_TRANSPORT); | |
| 390 device_names->push_back(name); | |
| 391 DVLOG(1) << "Blackmagic camera enumerated: " << name.name(); | |
| 392 } | |
| 393 display_mode.Release(); | |
| 394 } | |
| 395 } | |
| 396 } | |
| 397 | |
| 398 // static | |
| 399 void VideoCaptureDeviceDeckLinkMac::EnumerateDeviceCapabilities( | |
| 400 const VideoCaptureDevice::Name& device, | |
| 401 VideoCaptureFormats* supported_formats) { | |
| 402 scoped_refptr<IDeckLinkIterator> decklink_iter( | |
| 403 CreateDeckLinkIteratorInstance()); | |
| 404 DLOG_IF(ERROR, !decklink_iter.get()) << "Error creating DeckLink iterator"; | |
| 405 if (!decklink_iter.get()) | |
| 406 return; | |
| 407 | |
| 408 ScopedDeckLinkPtr<IDeckLink> decklink; | |
| 409 while (decklink_iter->Next(decklink.Receive()) == S_OK) { | |
| 410 ScopedDeckLinkPtr<IDeckLink> decklink_local; | |
| 411 decklink_local.swap(decklink); | |
| 412 | |
| 413 ScopedDeckLinkPtr<IDeckLinkInput> decklink_input; | |
| 414 if (decklink_local->QueryInterface(IID_IDeckLinkInput, | |
| 415 decklink_input.ReceiveVoid()) != S_OK) { | |
| 416 DLOG(ERROR) << "Error Blackmagic querying input interface."; | |
| 417 return; | |
| 418 } | |
| 419 | |
| 420 ScopedDeckLinkPtr<IDeckLinkDisplayModeIterator> display_mode_iter; | |
| 421 if (decklink_input->GetDisplayModeIterator(display_mode_iter.Receive()) != | |
| 422 S_OK) { | |
| 423 continue; | |
| 424 } | |
| 425 | |
| 426 CFStringRef device_model_name = NULL; | |
| 427 if (decklink_local->GetModelName(&device_model_name) != S_OK) | |
| 428 continue; | |
| 429 | |
| 430 ScopedDeckLinkPtr<IDeckLinkDisplayMode> display_mode; | |
| 431 while (display_mode_iter->Next(display_mode.Receive()) == S_OK) { | |
| 432 CFStringRef format_name = NULL; | |
| 433 if (display_mode->GetName(&format_name) == S_OK && | |
| 434 device.id() != | |
| 435 JoinDeviceNameAndFormat(device_model_name, format_name)) { | |
| 436 display_mode.Release(); | |
| 437 continue; | |
| 438 } | |
| 439 | |
| 440 // IDeckLinkDisplayMode does not have information on pixel format, this | |
| 441 // is only available on capture. | |
| 442 const media::VideoCaptureFormat format( | |
| 443 gfx::Size(display_mode->GetWidth(), display_mode->GetHeight()), | |
| 444 GetDisplayModeFrameRate(display_mode), | |
| 445 PIXEL_FORMAT_UNKNOWN); | |
| 446 supported_formats->push_back(format); | |
| 447 DVLOG(2) << device.name() << " " << VideoCaptureFormat::ToString(format); | |
| 448 display_mode.Release(); | |
| 449 } | |
| 450 return; | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 VideoCaptureDeviceDeckLinkMac::VideoCaptureDeviceDeckLinkMac( | |
| 455 const Name& device_name) | |
| 456 : decklink_capture_delegate_( | |
| 457 new DeckLinkCaptureDelegate(device_name, this)) { | |
| 458 } | |
| 459 | |
| 460 VideoCaptureDeviceDeckLinkMac::~VideoCaptureDeviceDeckLinkMac() { | |
| 461 decklink_capture_delegate_->ResetVideoCaptureDeviceReference(); | |
| 462 } | |
| 463 | |
| 464 void VideoCaptureDeviceDeckLinkMac::OnIncomingCapturedData( | |
| 465 const uint8_t* data, | |
| 466 size_t length, | |
| 467 const VideoCaptureFormat& frame_format, | |
| 468 int rotation, // Clockwise. | |
| 469 base::TimeTicks reference_time, | |
| 470 base::TimeDelta timestamp) { | |
| 471 base::AutoLock lock(lock_); | |
| 472 if (client_) { | |
| 473 client_->OnIncomingCapturedData(data, length, frame_format, rotation, | |
| 474 reference_time, timestamp); | |
| 475 } | |
| 476 } | |
| 477 | |
| 478 void VideoCaptureDeviceDeckLinkMac::SendErrorString( | |
| 479 const tracked_objects::Location& from_here, | |
| 480 const std::string& reason) { | |
| 481 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 482 base::AutoLock lock(lock_); | |
| 483 if (client_) | |
| 484 client_->OnError(from_here, reason); | |
| 485 } | |
| 486 | |
| 487 void VideoCaptureDeviceDeckLinkMac::SendLogString(const std::string& message) { | |
| 488 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 489 base::AutoLock lock(lock_); | |
| 490 if (client_) | |
| 491 client_->OnLog(message); | |
| 492 } | |
| 493 | |
| 494 void VideoCaptureDeviceDeckLinkMac::AllocateAndStart( | |
| 495 const VideoCaptureParams& params, | |
| 496 std::unique_ptr<VideoCaptureDevice::Client> client) { | |
| 497 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 498 client_ = std::move(client); | |
| 499 if (decklink_capture_delegate_.get()) | |
| 500 decklink_capture_delegate_->AllocateAndStart(params); | |
| 501 } | |
| 502 | |
| 503 void VideoCaptureDeviceDeckLinkMac::StopAndDeAllocate() { | |
| 504 if (decklink_capture_delegate_.get()) | |
| 505 decklink_capture_delegate_->StopAndDeAllocate(); | |
| 506 } | |
| 507 | |
| 508 } // namespace media | |
| OLD | NEW |
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Chromium Code Reviews
Issue 2143903003:
[WIP] Move media/capture to device/capture (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master