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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 "content/common/gpu/media/vt_video_decode_accelerator_mac.h" | |
| 6 | |
| 7 #include <CoreVideo/CoreVideo.h> | |
| 8 #include <OpenGL/CGLIOSurface.h> | |
| 9 #include <OpenGL/gl.h> | |
| 10 #include <stddef.h> | |
| 11 | |
| 12 #include <algorithm> | |
| 13 | |
| 14 #include "base/bind.h" | |
| 15 #include "base/logging.h" | |
| 16 #include "base/mac/mac_logging.h" | |
| 17 #include "base/macros.h" | |
| 18 #include "base/memory/ptr_util.h" | |
| 19 #include "base/metrics/histogram_macros.h" | |
| 20 #include "base/sys_byteorder.h" | |
| 21 #include "base/sys_info.h" | |
| 22 #include "base/thread_task_runner_handle.h" | |
| 23 #include "base/version.h" | |
| 24 #include "media/base/limits.h" | |
| 25 #include "ui/gl/gl_context.h" | |
| 26 #include "ui/gl/gl_image_io_surface.h" | |
| 27 #include "ui/gl/gl_implementation.h" | |
| 28 #include "ui/gl/scoped_binders.h" | |
| 29 | |
| 30 using content_common_gpu_media::kModuleVt; | |
| 31 using content_common_gpu_media::InitializeStubs; | |
| 32 using content_common_gpu_media::IsVtInitialized; | |
| 33 using content_common_gpu_media::StubPathMap; | |
| 34 | |
| 35 #define NOTIFY_STATUS(name, status, session_failure) \ | |
| 36 do { \ | |
| 37 OSSTATUS_DLOG(ERROR, status) << name; \ | |
| 38 NotifyError(PLATFORM_FAILURE, session_failure); \ | |
| 39 } while (0) | |
| 40 | |
| 41 namespace content { | |
| 42 | |
| 43 // Only H.264 with 4:2:0 chroma sampling is supported. | |
| 44 static const media::VideoCodecProfile kSupportedProfiles[] = { | |
| 45 media::H264PROFILE_BASELINE, | |
| 46 media::H264PROFILE_MAIN, | |
| 47 media::H264PROFILE_EXTENDED, | |
| 48 media::H264PROFILE_HIGH, | |
| 49 // TODO(hubbe): Try to re-enable this again somehow. Currently it seems | |
| 50 // that some codecs fail to check the profile during initialization and | |
| 51 // then fail on the first frame decode, which currently results in a | |
| 52 // pipeline failure. | |
| 53 // media::H264PROFILE_HIGH10PROFILE, | |
| 54 media::H264PROFILE_SCALABLEBASELINE, | |
| 55 media::H264PROFILE_SCALABLEHIGH, | |
| 56 media::H264PROFILE_STEREOHIGH, | |
| 57 media::H264PROFILE_MULTIVIEWHIGH, | |
| 58 }; | |
| 59 | |
| 60 // Size to use for NALU length headers in AVC format (can be 1, 2, or 4). | |
| 61 static const int kNALUHeaderLength = 4; | |
| 62 | |
| 63 // We request 5 picture buffers from the client, each of which has a texture ID | |
| 64 // that we can bind decoded frames to. We need enough to satisfy preroll, and | |
| 65 // enough to avoid unnecessary stalling, but no more than that. The resource | |
| 66 // requirements are low, as we don't need the textures to be backed by storage. | |
| 67 static const int kNumPictureBuffers = media::limits::kMaxVideoFrames + 1; | |
| 68 | |
| 69 // Maximum number of frames to queue for reordering before we stop asking for | |
| 70 // more. (NotifyEndOfBitstreamBuffer() is called when frames are moved into the | |
| 71 // reorder queue.) | |
| 72 static const int kMaxReorderQueueSize = 16; | |
| 73 | |
| 74 // Build an |image_config| dictionary for VideoToolbox initialization. | |
| 75 static base::ScopedCFTypeRef<CFMutableDictionaryRef> | |
| 76 BuildImageConfig(CMVideoDimensions coded_dimensions) { | |
| 77 base::ScopedCFTypeRef<CFMutableDictionaryRef> image_config; | |
| 78 | |
| 79 // Note that 4:2:0 textures cannot be used directly as RGBA in OpenGL, but are | |
| 80 // lower power than 4:2:2 when composited directly by CoreAnimation. | |
| 81 int32_t pixel_format = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange; | |
| 82 #define CFINT(i) CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &i) | |
| 83 base::ScopedCFTypeRef<CFNumberRef> cf_pixel_format(CFINT(pixel_format)); | |
| 84 base::ScopedCFTypeRef<CFNumberRef> cf_width(CFINT(coded_dimensions.width)); | |
| 85 base::ScopedCFTypeRef<CFNumberRef> cf_height(CFINT(coded_dimensions.height)); | |
| 86 #undef CFINT | |
| 87 if (!cf_pixel_format.get() || !cf_width.get() || !cf_height.get()) | |
| 88 return image_config; | |
| 89 | |
| 90 image_config.reset( | |
| 91 CFDictionaryCreateMutable( | |
| 92 kCFAllocatorDefault, | |
| 93 3, // capacity | |
| 94 &kCFTypeDictionaryKeyCallBacks, | |
| 95 &kCFTypeDictionaryValueCallBacks)); | |
| 96 if (!image_config.get()) | |
| 97 return image_config; | |
| 98 | |
| 99 CFDictionarySetValue(image_config, kCVPixelBufferPixelFormatTypeKey, | |
| 100 cf_pixel_format); | |
| 101 CFDictionarySetValue(image_config, kCVPixelBufferWidthKey, cf_width); | |
| 102 CFDictionarySetValue(image_config, kCVPixelBufferHeightKey, cf_height); | |
| 103 | |
| 104 return image_config; | |
| 105 } | |
| 106 | |
| 107 // Create a VTDecompressionSession using the provided |pps| and |sps|. If | |
| 108 // |require_hardware| is true, the session must uses real hardware decoding | |
| 109 // (as opposed to software decoding inside of VideoToolbox) to be considered | |
| 110 // successful. | |
| 111 // | |
| 112 // TODO(sandersd): Merge with ConfigureDecoder(), as the code is very similar. | |
| 113 static bool CreateVideoToolboxSession(const uint8_t* sps, size_t sps_size, | |
| 114 const uint8_t* pps, size_t pps_size, | |
| 115 bool require_hardware) { | |
| 116 const uint8_t* data_ptrs[] = {sps, pps}; | |
| 117 const size_t data_sizes[] = {sps_size, pps_size}; | |
| 118 | |
| 119 base::ScopedCFTypeRef<CMFormatDescriptionRef> format; | |
| 120 OSStatus status = CMVideoFormatDescriptionCreateFromH264ParameterSets( | |
| 121 kCFAllocatorDefault, | |
| 122 2, // parameter_set_count | |
| 123 data_ptrs, // ¶meter_set_pointers | |
| 124 data_sizes, // ¶meter_set_sizes | |
| 125 kNALUHeaderLength, // nal_unit_header_length | |
| 126 format.InitializeInto()); | |
| 127 if (status) { | |
| 128 OSSTATUS_DLOG(WARNING, status) | |
| 129 << "Failed to create CMVideoFormatDescription."; | |
| 130 return false; | |
| 131 } | |
| 132 | |
| 133 base::ScopedCFTypeRef<CFMutableDictionaryRef> decoder_config( | |
| 134 CFDictionaryCreateMutable( | |
| 135 kCFAllocatorDefault, | |
| 136 1, // capacity | |
| 137 &kCFTypeDictionaryKeyCallBacks, | |
| 138 &kCFTypeDictionaryValueCallBacks)); | |
| 139 if (!decoder_config.get()) | |
| 140 return false; | |
| 141 | |
| 142 if (require_hardware) { | |
| 143 CFDictionarySetValue( | |
| 144 decoder_config, | |
| 145 // kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder | |
| 146 CFSTR("RequireHardwareAcceleratedVideoDecoder"), | |
| 147 kCFBooleanTrue); | |
| 148 } | |
| 149 | |
| 150 base::ScopedCFTypeRef<CFMutableDictionaryRef> image_config( | |
| 151 BuildImageConfig(CMVideoFormatDescriptionGetDimensions(format))); | |
| 152 if (!image_config.get()) | |
| 153 return false; | |
| 154 | |
| 155 VTDecompressionOutputCallbackRecord callback = {0}; | |
| 156 | |
| 157 base::ScopedCFTypeRef<VTDecompressionSessionRef> session; | |
| 158 status = VTDecompressionSessionCreate( | |
| 159 kCFAllocatorDefault, | |
| 160 format, // video_format_description | |
| 161 decoder_config, // video_decoder_specification | |
| 162 image_config, // destination_image_buffer_attributes | |
| 163 &callback, // output_callback | |
| 164 session.InitializeInto()); | |
| 165 if (status) { | |
| 166 OSSTATUS_DLOG(WARNING, status) << "Failed to create VTDecompressionSession"; | |
| 167 return false; | |
| 168 } | |
| 169 | |
| 170 return true; | |
| 171 } | |
| 172 | |
| 173 // The purpose of this function is to preload the generic and hardware-specific | |
| 174 // libraries required by VideoToolbox before the GPU sandbox is enabled. | |
| 175 // VideoToolbox normally loads the hardware-specific libraries lazily, so we | |
| 176 // must actually create a decompression session. If creating a decompression | |
| 177 // session fails, hardware decoding will be disabled (Initialize() will always | |
| 178 // return false). | |
| 179 static bool InitializeVideoToolboxInternal() { | |
| 180 if (!IsVtInitialized()) { | |
| 181 // CoreVideo is also required, but the loader stops after the first path is | |
| 182 // loaded. Instead we rely on the transitive dependency from VideoToolbox to | |
| 183 // CoreVideo. | |
| 184 StubPathMap paths; | |
| 185 paths[kModuleVt].push_back(FILE_PATH_LITERAL( | |
| 186 "/System/Library/Frameworks/VideoToolbox.framework/VideoToolbox")); | |
| 187 if (!InitializeStubs(paths)) { | |
| 188 LOG(WARNING) << "Failed to initialize VideoToolbox framework. " | |
| 189 << "Hardware accelerated video decoding will be disabled."; | |
| 190 return false; | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 // Create a hardware decoding session. | |
| 195 // SPS and PPS data are taken from a 480p sample (buck2.mp4). | |
| 196 const uint8_t sps_normal[] = {0x67, 0x64, 0x00, 0x1e, 0xac, 0xd9, 0x80, 0xd4, | |
| 197 0x3d, 0xa1, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, | |
| 198 0x00, 0x03, 0x00, 0x30, 0x8f, 0x16, 0x2d, 0x9a}; | |
| 199 const uint8_t pps_normal[] = {0x68, 0xe9, 0x7b, 0xcb}; | |
| 200 if (!CreateVideoToolboxSession(sps_normal, arraysize(sps_normal), pps_normal, | |
| 201 arraysize(pps_normal), true)) { | |
| 202 LOG(WARNING) << "Failed to create hardware VideoToolbox session. " | |
| 203 << "Hardware accelerated video decoding will be disabled."; | |
| 204 return false; | |
| 205 } | |
| 206 | |
| 207 // Create a software decoding session. | |
| 208 // SPS and PPS data are taken from a 18p sample (small2.mp4). | |
| 209 const uint8_t sps_small[] = {0x67, 0x64, 0x00, 0x0a, 0xac, 0xd9, 0x89, 0x7e, | |
| 210 0x22, 0x10, 0x00, 0x00, 0x3e, 0x90, 0x00, 0x0e, | |
| 211 0xa6, 0x08, 0xf1, 0x22, 0x59, 0xa0}; | |
| 212 const uint8_t pps_small[] = {0x68, 0xe9, 0x79, 0x72, 0xc0}; | |
| 213 if (!CreateVideoToolboxSession(sps_small, arraysize(sps_small), pps_small, | |
| 214 arraysize(pps_small), false)) { | |
| 215 LOG(WARNING) << "Failed to create software VideoToolbox session. " | |
| 216 << "Hardware accelerated video decoding will be disabled."; | |
| 217 return false; | |
| 218 } | |
| 219 | |
| 220 return true; | |
| 221 } | |
| 222 | |
| 223 bool InitializeVideoToolbox() { | |
| 224 // InitializeVideoToolbox() is called only from the GPU process main thread; | |
| 225 // once for sandbox warmup, and then once each time a VTVideoDecodeAccelerator | |
| 226 // is initialized. | |
| 227 static bool attempted = false; | |
| 228 static bool succeeded = false; | |
| 229 | |
| 230 if (!attempted) { | |
| 231 attempted = true; | |
| 232 succeeded = InitializeVideoToolboxInternal(); | |
| 233 } | |
| 234 | |
| 235 return succeeded; | |
| 236 } | |
| 237 | |
| 238 // Route decoded frame callbacks back into the VTVideoDecodeAccelerator. | |
| 239 static void OutputThunk( | |
| 240 void* decompression_output_refcon, | |
| 241 void* source_frame_refcon, | |
| 242 OSStatus status, | |
| 243 VTDecodeInfoFlags info_flags, | |
| 244 CVImageBufferRef image_buffer, | |
| 245 CMTime presentation_time_stamp, | |
| 246 CMTime presentation_duration) { | |
| 247 VTVideoDecodeAccelerator* vda = | |
| 248 reinterpret_cast<VTVideoDecodeAccelerator*>(decompression_output_refcon); | |
| 249 vda->Output(source_frame_refcon, status, image_buffer); | |
| 250 } | |
| 251 | |
| 252 VTVideoDecodeAccelerator::Task::Task(TaskType type) : type(type) { | |
| 253 } | |
| 254 | |
| 255 VTVideoDecodeAccelerator::Task::Task(const Task& other) = default; | |
| 256 | |
| 257 VTVideoDecodeAccelerator::Task::~Task() { | |
| 258 } | |
| 259 | |
| 260 VTVideoDecodeAccelerator::Frame::Frame(int32_t bitstream_id) | |
| 261 : bitstream_id(bitstream_id), | |
| 262 pic_order_cnt(0), | |
| 263 is_idr(false), | |
| 264 reorder_window(0) { | |
| 265 } | |
| 266 | |
| 267 VTVideoDecodeAccelerator::Frame::~Frame() { | |
| 268 } | |
| 269 | |
| 270 VTVideoDecodeAccelerator::PictureInfo::PictureInfo(uint32_t client_texture_id, | |
| 271 uint32_t service_texture_id) | |
| 272 : client_texture_id(client_texture_id), | |
| 273 service_texture_id(service_texture_id) {} | |
| 274 | |
| 275 VTVideoDecodeAccelerator::PictureInfo::~PictureInfo() { | |
| 276 if (gl_image) | |
| 277 gl_image->Destroy(false); | |
| 278 } | |
| 279 | |
| 280 bool VTVideoDecodeAccelerator::FrameOrder::operator()( | |
| 281 const linked_ptr<Frame>& lhs, | |
| 282 const linked_ptr<Frame>& rhs) const { | |
| 283 if (lhs->pic_order_cnt != rhs->pic_order_cnt) | |
| 284 return lhs->pic_order_cnt > rhs->pic_order_cnt; | |
| 285 // If |pic_order_cnt| is the same, fall back on using the bitstream order. | |
| 286 // TODO(sandersd): Assign a sequence number in Decode() and use that instead. | |
| 287 // TODO(sandersd): Using the sequence number, ensure that frames older than | |
| 288 // |kMaxReorderQueueSize| are ordered first, regardless of |pic_order_cnt|. | |
| 289 return lhs->bitstream_id > rhs->bitstream_id; | |
| 290 } | |
| 291 | |
| 292 VTVideoDecodeAccelerator::VTVideoDecodeAccelerator( | |
| 293 const MakeGLContextCurrentCallback& make_context_current_cb, | |
| 294 const BindGLImageCallback& bind_image_cb) | |
| 295 : make_context_current_cb_(make_context_current_cb), | |
| 296 bind_image_cb_(bind_image_cb), | |
| 297 client_(nullptr), | |
| 298 state_(STATE_DECODING), | |
| 299 format_(nullptr), | |
| 300 session_(nullptr), | |
| 301 last_sps_id_(-1), | |
| 302 last_pps_id_(-1), | |
| 303 config_changed_(false), | |
| 304 waiting_for_idr_(true), | |
| 305 missing_idr_logged_(false), | |
| 306 gpu_task_runner_(base::ThreadTaskRunnerHandle::Get()), | |
| 307 decoder_thread_("VTDecoderThread"), | |
| 308 weak_this_factory_(this) { | |
| 309 callback_.decompressionOutputCallback = OutputThunk; | |
| 310 callback_.decompressionOutputRefCon = this; | |
| 311 weak_this_ = weak_this_factory_.GetWeakPtr(); | |
| 312 } | |
| 313 | |
| 314 VTVideoDecodeAccelerator::~VTVideoDecodeAccelerator() { | |
| 315 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 316 } | |
| 317 | |
| 318 bool VTVideoDecodeAccelerator::Initialize(const Config& config, | |
| 319 Client* client) { | |
| 320 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 321 | |
| 322 if (make_context_current_cb_.is_null() || bind_image_cb_.is_null()) { | |
| 323 NOTREACHED() << "GL callbacks are required for this VDA"; | |
| 324 return false; | |
| 325 } | |
| 326 | |
| 327 if (config.is_encrypted) { | |
| 328 NOTREACHED() << "Encrypted streams are not supported for this VDA"; | |
| 329 return false; | |
| 330 } | |
| 331 | |
| 332 client_ = client; | |
| 333 | |
| 334 if (!InitializeVideoToolbox()) | |
| 335 return false; | |
| 336 | |
| 337 bool profile_supported = false; | |
| 338 for (const auto& supported_profile : kSupportedProfiles) { | |
| 339 if (config.profile == supported_profile) { | |
| 340 profile_supported = true; | |
| 341 break; | |
| 342 } | |
| 343 } | |
| 344 if (!profile_supported) | |
| 345 return false; | |
| 346 | |
| 347 // Spawn a thread to handle parsing and calling VideoToolbox. | |
| 348 if (!decoder_thread_.Start()) | |
| 349 return false; | |
| 350 | |
| 351 // Count the session as successfully initialized. | |
| 352 UMA_HISTOGRAM_ENUMERATION("Media.VTVDA.SessionFailureReason", | |
| 353 SFT_SUCCESSFULLY_INITIALIZED, | |
| 354 SFT_MAX + 1); | |
| 355 return true; | |
| 356 } | |
| 357 | |
| 358 bool VTVideoDecodeAccelerator::FinishDelayedFrames() { | |
| 359 DCHECK(decoder_thread_.task_runner()->BelongsToCurrentThread()); | |
| 360 if (session_) { | |
| 361 OSStatus status = VTDecompressionSessionWaitForAsynchronousFrames(session_); | |
| 362 if (status) { | |
| 363 NOTIFY_STATUS("VTDecompressionSessionWaitForAsynchronousFrames()", | |
| 364 status, SFT_PLATFORM_ERROR); | |
| 365 return false; | |
| 366 } | |
| 367 } | |
| 368 return true; | |
| 369 } | |
| 370 | |
| 371 bool VTVideoDecodeAccelerator::ConfigureDecoder() { | |
| 372 DCHECK(decoder_thread_.task_runner()->BelongsToCurrentThread()); | |
| 373 DCHECK(!last_sps_.empty()); | |
| 374 DCHECK(!last_pps_.empty()); | |
| 375 | |
| 376 // Build the configuration records. | |
| 377 std::vector<const uint8_t*> nalu_data_ptrs; | |
| 378 std::vector<size_t> nalu_data_sizes; | |
| 379 nalu_data_ptrs.reserve(3); | |
| 380 nalu_data_sizes.reserve(3); | |
| 381 nalu_data_ptrs.push_back(&last_sps_.front()); | |
| 382 nalu_data_sizes.push_back(last_sps_.size()); | |
| 383 if (!last_spsext_.empty()) { | |
| 384 nalu_data_ptrs.push_back(&last_spsext_.front()); | |
| 385 nalu_data_sizes.push_back(last_spsext_.size()); | |
| 386 } | |
| 387 nalu_data_ptrs.push_back(&last_pps_.front()); | |
| 388 nalu_data_sizes.push_back(last_pps_.size()); | |
| 389 | |
| 390 // Construct a new format description from the parameter sets. | |
| 391 format_.reset(); | |
| 392 OSStatus status = CMVideoFormatDescriptionCreateFromH264ParameterSets( | |
| 393 kCFAllocatorDefault, | |
| 394 nalu_data_ptrs.size(), // parameter_set_count | |
| 395 &nalu_data_ptrs.front(), // ¶meter_set_pointers | |
| 396 &nalu_data_sizes.front(), // ¶meter_set_sizes | |
| 397 kNALUHeaderLength, // nal_unit_header_length | |
| 398 format_.InitializeInto()); | |
| 399 if (status) { | |
| 400 NOTIFY_STATUS("CMVideoFormatDescriptionCreateFromH264ParameterSets()", | |
| 401 status, SFT_PLATFORM_ERROR); | |
| 402 return false; | |
| 403 } | |
| 404 | |
| 405 // Store the new configuration data. | |
| 406 // TODO(sandersd): Despite the documentation, this seems to return the visible | |
| 407 // size. However, the output always appears to be top-left aligned, so it | |
| 408 // makes no difference. Re-verify this and update the variable name. | |
| 409 CMVideoDimensions coded_dimensions = | |
| 410 CMVideoFormatDescriptionGetDimensions(format_); | |
| 411 coded_size_.SetSize(coded_dimensions.width, coded_dimensions.height); | |
| 412 | |
| 413 // Prepare VideoToolbox configuration dictionaries. | |
| 414 base::ScopedCFTypeRef<CFMutableDictionaryRef> decoder_config( | |
| 415 CFDictionaryCreateMutable( | |
| 416 kCFAllocatorDefault, | |
| 417 1, // capacity | |
| 418 &kCFTypeDictionaryKeyCallBacks, | |
| 419 &kCFTypeDictionaryValueCallBacks)); | |
| 420 if (!decoder_config.get()) { | |
| 421 DLOG(ERROR) << "Failed to create CFMutableDictionary."; | |
| 422 NotifyError(PLATFORM_FAILURE, SFT_PLATFORM_ERROR); | |
| 423 return false; | |
| 424 } | |
| 425 | |
| 426 CFDictionarySetValue( | |
| 427 decoder_config, | |
| 428 // kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder | |
| 429 CFSTR("EnableHardwareAcceleratedVideoDecoder"), | |
| 430 kCFBooleanTrue); | |
| 431 | |
| 432 base::ScopedCFTypeRef<CFMutableDictionaryRef> image_config( | |
| 433 BuildImageConfig(coded_dimensions)); | |
| 434 if (!image_config.get()) { | |
| 435 DLOG(ERROR) << "Failed to create decoder image configuration."; | |
| 436 NotifyError(PLATFORM_FAILURE, SFT_PLATFORM_ERROR); | |
| 437 return false; | |
| 438 } | |
| 439 | |
| 440 // Ensure that the old decoder emits all frames before the new decoder can | |
| 441 // emit any. | |
| 442 if (!FinishDelayedFrames()) | |
| 443 return false; | |
| 444 | |
| 445 session_.reset(); | |
| 446 status = VTDecompressionSessionCreate( | |
| 447 kCFAllocatorDefault, | |
| 448 format_, // video_format_description | |
| 449 decoder_config, // video_decoder_specification | |
| 450 image_config, // destination_image_buffer_attributes | |
| 451 &callback_, // output_callback | |
| 452 session_.InitializeInto()); | |
| 453 if (status) { | |
| 454 NOTIFY_STATUS("VTDecompressionSessionCreate()", status, | |
| 455 SFT_UNSUPPORTED_STREAM_PARAMETERS); | |
| 456 return false; | |
| 457 } | |
| 458 | |
| 459 // Report whether hardware decode is being used. | |
| 460 bool using_hardware = false; | |
| 461 base::ScopedCFTypeRef<CFBooleanRef> cf_using_hardware; | |
| 462 if (VTSessionCopyProperty( | |
| 463 session_, | |
| 464 // kVTDecompressionPropertyKey_UsingHardwareAcceleratedVideoDecoder | |
| 465 CFSTR("UsingHardwareAcceleratedVideoDecoder"), | |
| 466 kCFAllocatorDefault, | |
| 467 cf_using_hardware.InitializeInto()) == 0) { | |
| 468 using_hardware = CFBooleanGetValue(cf_using_hardware); | |
| 469 } | |
| 470 UMA_HISTOGRAM_BOOLEAN("Media.VTVDA.HardwareAccelerated", using_hardware); | |
| 471 | |
| 472 return true; | |
| 473 } | |
| 474 | |
| 475 void VTVideoDecodeAccelerator::DecodeTask( | |
| 476 const media::BitstreamBuffer& bitstream, | |
| 477 Frame* frame) { | |
| 478 DCHECK(decoder_thread_.task_runner()->BelongsToCurrentThread()); | |
| 479 | |
| 480 // Map the bitstream buffer. | |
| 481 base::SharedMemory memory(bitstream.handle(), true); | |
| 482 size_t size = bitstream.size(); | |
| 483 if (!memory.Map(size)) { | |
| 484 DLOG(ERROR) << "Failed to map bitstream buffer"; | |
| 485 NotifyError(PLATFORM_FAILURE, SFT_PLATFORM_ERROR); | |
| 486 return; | |
| 487 } | |
| 488 const uint8_t* buf = static_cast<uint8_t*>(memory.memory()); | |
| 489 | |
| 490 // NALUs are stored with Annex B format in the bitstream buffer (start codes), | |
| 491 // but VideoToolbox expects AVC format (length headers), so we must rewrite | |
| 492 // the data. | |
| 493 // | |
| 494 // Locate relevant NALUs and compute the size of the rewritten data. Also | |
| 495 // record any parameter sets for VideoToolbox initialization. | |
| 496 std::vector<uint8_t> sps; | |
| 497 std::vector<uint8_t> spsext; | |
| 498 std::vector<uint8_t> pps; | |
| 499 bool has_slice = false; | |
| 500 size_t data_size = 0; | |
| 501 std::vector<media::H264NALU> nalus; | |
| 502 parser_.SetStream(buf, size); | |
| 503 media::H264NALU nalu; | |
| 504 while (true) { | |
| 505 media::H264Parser::Result result = parser_.AdvanceToNextNALU(&nalu); | |
| 506 if (result == media::H264Parser::kEOStream) | |
| 507 break; | |
| 508 if (result == media::H264Parser::kUnsupportedStream) { | |
| 509 DLOG(ERROR) << "Unsupported H.264 stream"; | |
| 510 NotifyError(PLATFORM_FAILURE, SFT_UNSUPPORTED_STREAM); | |
| 511 return; | |
| 512 } | |
| 513 if (result != media::H264Parser::kOk) { | |
| 514 DLOG(ERROR) << "Failed to parse H.264 stream"; | |
| 515 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 516 return; | |
| 517 } | |
| 518 switch (nalu.nal_unit_type) { | |
| 519 case media::H264NALU::kSPS: | |
| 520 result = parser_.ParseSPS(&last_sps_id_); | |
| 521 if (result == media::H264Parser::kUnsupportedStream) { | |
| 522 DLOG(ERROR) << "Unsupported SPS"; | |
| 523 NotifyError(PLATFORM_FAILURE, SFT_UNSUPPORTED_STREAM); | |
| 524 return; | |
| 525 } | |
| 526 if (result != media::H264Parser::kOk) { | |
| 527 DLOG(ERROR) << "Could not parse SPS"; | |
| 528 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 529 return; | |
| 530 } | |
| 531 sps.assign(nalu.data, nalu.data + nalu.size); | |
| 532 spsext.clear(); | |
| 533 break; | |
| 534 | |
| 535 case media::H264NALU::kSPSExt: | |
| 536 // TODO(sandersd): Check that the previous NALU was an SPS. | |
| 537 spsext.assign(nalu.data, nalu.data + nalu.size); | |
| 538 break; | |
| 539 | |
| 540 case media::H264NALU::kPPS: | |
| 541 result = parser_.ParsePPS(&last_pps_id_); | |
| 542 if (result == media::H264Parser::kUnsupportedStream) { | |
| 543 DLOG(ERROR) << "Unsupported PPS"; | |
| 544 NotifyError(PLATFORM_FAILURE, SFT_UNSUPPORTED_STREAM); | |
| 545 return; | |
| 546 } | |
| 547 if (result != media::H264Parser::kOk) { | |
| 548 DLOG(ERROR) << "Could not parse PPS"; | |
| 549 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 550 return; | |
| 551 } | |
| 552 pps.assign(nalu.data, nalu.data + nalu.size); | |
| 553 break; | |
| 554 | |
| 555 case media::H264NALU::kSliceDataA: | |
| 556 case media::H264NALU::kSliceDataB: | |
| 557 case media::H264NALU::kSliceDataC: | |
| 558 case media::H264NALU::kNonIDRSlice: | |
| 559 case media::H264NALU::kIDRSlice: | |
| 560 // Compute the |pic_order_cnt| for the picture from the first slice. | |
| 561 if (!has_slice) { | |
| 562 // Verify that we are not trying to decode a slice without an IDR. | |
| 563 if (waiting_for_idr_) { | |
| 564 if (nalu.nal_unit_type == media::H264NALU::kIDRSlice) { | |
| 565 waiting_for_idr_ = false; | |
| 566 } else { | |
| 567 // We can't compute anything yet, bail on this frame. | |
| 568 has_slice = true; | |
| 569 break; | |
| 570 } | |
| 571 } | |
| 572 | |
| 573 media::H264SliceHeader slice_hdr; | |
| 574 result = parser_.ParseSliceHeader(nalu, &slice_hdr); | |
| 575 if (result == media::H264Parser::kUnsupportedStream) { | |
| 576 DLOG(ERROR) << "Unsupported slice header"; | |
| 577 NotifyError(PLATFORM_FAILURE, SFT_UNSUPPORTED_STREAM); | |
| 578 return; | |
| 579 } | |
| 580 if (result != media::H264Parser::kOk) { | |
| 581 DLOG(ERROR) << "Could not parse slice header"; | |
| 582 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 583 return; | |
| 584 } | |
| 585 | |
| 586 // TODO(sandersd): Maintain a cache of configurations and reconfigure | |
| 587 // when a slice references a new config. | |
| 588 DCHECK_EQ(slice_hdr.pic_parameter_set_id, last_pps_id_); | |
| 589 const media::H264PPS* pps = | |
| 590 parser_.GetPPS(slice_hdr.pic_parameter_set_id); | |
| 591 if (!pps) { | |
| 592 DLOG(ERROR) << "Mising PPS referenced by slice"; | |
| 593 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 594 return; | |
| 595 } | |
| 596 | |
| 597 DCHECK_EQ(pps->seq_parameter_set_id, last_sps_id_); | |
| 598 const media::H264SPS* sps = parser_.GetSPS(pps->seq_parameter_set_id); | |
| 599 if (!sps) { | |
| 600 DLOG(ERROR) << "Mising SPS referenced by PPS"; | |
| 601 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 602 return; | |
| 603 } | |
| 604 | |
| 605 if (!poc_.ComputePicOrderCnt(sps, slice_hdr, &frame->pic_order_cnt)) { | |
| 606 DLOG(ERROR) << "Unable to compute POC"; | |
| 607 NotifyError(UNREADABLE_INPUT, SFT_INVALID_STREAM); | |
| 608 return; | |
| 609 } | |
| 610 | |
| 611 if (nalu.nal_unit_type == media::H264NALU::kIDRSlice) | |
| 612 frame->is_idr = true; | |
| 613 | |
| 614 if (sps->vui_parameters_present_flag && | |
| 615 sps->bitstream_restriction_flag) { | |
| 616 frame->reorder_window = std::min(sps->max_num_reorder_frames, | |
| 617 kMaxReorderQueueSize - 1); | |
| 618 } | |
| 619 } | |
| 620 has_slice = true; | |
| 621 default: | |
| 622 nalus.push_back(nalu); | |
| 623 data_size += kNALUHeaderLength + nalu.size; | |
| 624 break; | |
| 625 } | |
| 626 } | |
| 627 | |
| 628 // Initialize VideoToolbox. | |
| 629 if (!sps.empty() && sps != last_sps_) { | |
| 630 last_sps_.swap(sps); | |
| 631 last_spsext_.swap(spsext); | |
| 632 config_changed_ = true; | |
| 633 } | |
| 634 if (!pps.empty() && pps != last_pps_) { | |
| 635 last_pps_.swap(pps); | |
| 636 config_changed_ = true; | |
| 637 } | |
| 638 if (config_changed_) { | |
| 639 // Only reconfigure at IDRs to avoid corruption. | |
| 640 if (frame->is_idr) { | |
| 641 config_changed_ = false; | |
| 642 | |
| 643 if (last_sps_.empty()) { | |
| 644 DLOG(ERROR) << "Invalid configuration; no SPS"; | |
| 645 NotifyError(INVALID_ARGUMENT, SFT_INVALID_STREAM); | |
| 646 return; | |
| 647 } | |
| 648 if (last_pps_.empty()) { | |
| 649 DLOG(ERROR) << "Invalid configuration; no PPS"; | |
| 650 NotifyError(INVALID_ARGUMENT, SFT_INVALID_STREAM); | |
| 651 return; | |
| 652 } | |
| 653 | |
| 654 // ConfigureDecoder() calls NotifyError() on failure. | |
| 655 if (!ConfigureDecoder()) | |
| 656 return; | |
| 657 } | |
| 658 } | |
| 659 | |
| 660 // If no IDR has been seen yet, skip decoding. | |
| 661 if (has_slice && (!session_ || waiting_for_idr_) && config_changed_) { | |
| 662 if (!missing_idr_logged_) { | |
| 663 LOG(ERROR) << "Illegal attempt to decode without IDR. " | |
| 664 << "Discarding decode requests until next IDR."; | |
| 665 missing_idr_logged_ = true; | |
| 666 } | |
| 667 has_slice = false; | |
| 668 } | |
| 669 | |
| 670 // If there is nothing to decode, drop the bitstream buffer by returning an | |
| 671 // empty frame. | |
| 672 if (!has_slice) { | |
| 673 // Keep everything in order by flushing first. | |
| 674 if (!FinishDelayedFrames()) | |
| 675 return; | |
| 676 gpu_task_runner_->PostTask(FROM_HERE, base::Bind( | |
| 677 &VTVideoDecodeAccelerator::DecodeDone, weak_this_, frame)); | |
| 678 return; | |
| 679 } | |
| 680 | |
| 681 // If the session is not configured by this point, fail. | |
| 682 if (!session_) { | |
| 683 DLOG(ERROR) << "Cannot decode without configuration"; | |
| 684 NotifyError(INVALID_ARGUMENT, SFT_INVALID_STREAM); | |
| 685 return; | |
| 686 } | |
| 687 | |
| 688 // Update the frame metadata with configuration data. | |
| 689 frame->coded_size = coded_size_; | |
| 690 | |
| 691 // Create a memory-backed CMBlockBuffer for the translated data. | |
| 692 // TODO(sandersd): Pool of memory blocks. | |
| 693 base::ScopedCFTypeRef<CMBlockBufferRef> data; | |
| 694 OSStatus status = CMBlockBufferCreateWithMemoryBlock( | |
| 695 kCFAllocatorDefault, | |
| 696 nullptr, // &memory_block | |
| 697 data_size, // block_length | |
| 698 kCFAllocatorDefault, // block_allocator | |
| 699 nullptr, // &custom_block_source | |
| 700 0, // offset_to_data | |
| 701 data_size, // data_length | |
| 702 0, // flags | |
| 703 data.InitializeInto()); | |
| 704 if (status) { | |
| 705 NOTIFY_STATUS("CMBlockBufferCreateWithMemoryBlock()", status, | |
| 706 SFT_PLATFORM_ERROR); | |
| 707 return; | |
| 708 } | |
| 709 | |
| 710 // Make sure that the memory is actually allocated. | |
| 711 // CMBlockBufferReplaceDataBytes() is documented to do this, but prints a | |
| 712 // message each time starting in Mac OS X 10.10. | |
| 713 status = CMBlockBufferAssureBlockMemory(data); | |
| 714 if (status) { | |
| 715 NOTIFY_STATUS("CMBlockBufferAssureBlockMemory()", status, | |
| 716 SFT_PLATFORM_ERROR); | |
| 717 return; | |
| 718 } | |
| 719 | |
| 720 // Copy NALU data into the CMBlockBuffer, inserting length headers. | |
| 721 size_t offset = 0; | |
| 722 for (size_t i = 0; i < nalus.size(); i++) { | |
| 723 media::H264NALU& nalu = nalus[i]; | |
| 724 uint32_t header = base::HostToNet32(static_cast<uint32_t>(nalu.size)); | |
| 725 status = CMBlockBufferReplaceDataBytes( | |
| 726 &header, data, offset, kNALUHeaderLength); | |
| 727 if (status) { | |
| 728 NOTIFY_STATUS("CMBlockBufferReplaceDataBytes()", status, | |
| 729 SFT_PLATFORM_ERROR); | |
| 730 return; | |
| 731 } | |
| 732 offset += kNALUHeaderLength; | |
| 733 status = CMBlockBufferReplaceDataBytes(nalu.data, data, offset, nalu.size); | |
| 734 if (status) { | |
| 735 NOTIFY_STATUS("CMBlockBufferReplaceDataBytes()", status, | |
| 736 SFT_PLATFORM_ERROR); | |
| 737 return; | |
| 738 } | |
| 739 offset += nalu.size; | |
| 740 } | |
| 741 | |
| 742 // Package the data in a CMSampleBuffer. | |
| 743 base::ScopedCFTypeRef<CMSampleBufferRef> sample; | |
| 744 status = CMSampleBufferCreate( | |
| 745 kCFAllocatorDefault, | |
| 746 data, // data_buffer | |
| 747 true, // data_ready | |
| 748 nullptr, // make_data_ready_callback | |
| 749 nullptr, // make_data_ready_refcon | |
| 750 format_, // format_description | |
| 751 1, // num_samples | |
| 752 0, // num_sample_timing_entries | |
| 753 nullptr, // &sample_timing_array | |
| 754 1, // num_sample_size_entries | |
| 755 &data_size, // &sample_size_array | |
| 756 sample.InitializeInto()); | |
| 757 if (status) { | |
| 758 NOTIFY_STATUS("CMSampleBufferCreate()", status, SFT_PLATFORM_ERROR); | |
| 759 return; | |
| 760 } | |
| 761 | |
| 762 // Send the frame for decoding. | |
| 763 // Asynchronous Decompression allows for parallel submission of frames | |
| 764 // (without it, DecodeFrame() does not return until the frame has been | |
| 765 // decoded). We don't enable Temporal Processing so that frames are always | |
| 766 // returned in decode order; this makes it easier to avoid deadlock. | |
| 767 VTDecodeFrameFlags decode_flags = | |
| 768 kVTDecodeFrame_EnableAsynchronousDecompression; | |
| 769 status = VTDecompressionSessionDecodeFrame( | |
| 770 session_, | |
| 771 sample, // sample_buffer | |
| 772 decode_flags, // decode_flags | |
| 773 reinterpret_cast<void*>(frame), // source_frame_refcon | |
| 774 nullptr); // &info_flags_out | |
| 775 if (status) { | |
| 776 NOTIFY_STATUS("VTDecompressionSessionDecodeFrame()", status, | |
| 777 SFT_DECODE_ERROR); | |
| 778 return; | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 // This method may be called on any VideoToolbox thread. | |
| 783 void VTVideoDecodeAccelerator::Output( | |
| 784 void* source_frame_refcon, | |
| 785 OSStatus status, | |
| 786 CVImageBufferRef image_buffer) { | |
| 787 if (status) { | |
| 788 NOTIFY_STATUS("Decoding", status, SFT_DECODE_ERROR); | |
| 789 return; | |
| 790 } | |
| 791 | |
| 792 // The type of |image_buffer| is CVImageBuffer, but we only handle | |
| 793 // CVPixelBuffers. This should be guaranteed as we set | |
| 794 // kCVPixelBufferOpenGLCompatibilityKey in |image_config|. | |
| 795 // | |
| 796 // Sometimes, for unknown reasons (http://crbug.com/453050), |image_buffer| is | |
| 797 // NULL, which causes CFGetTypeID() to crash. While the rest of the code would | |
| 798 // smoothly handle NULL as a dropped frame, we choose to fail permanantly here | |
| 799 // until the issue is better understood. | |
| 800 if (!image_buffer || CFGetTypeID(image_buffer) != CVPixelBufferGetTypeID()) { | |
| 801 DLOG(ERROR) << "Decoded frame is not a CVPixelBuffer"; | |
| 802 NotifyError(PLATFORM_FAILURE, SFT_DECODE_ERROR); | |
| 803 return; | |
| 804 } | |
| 805 | |
| 806 Frame* frame = reinterpret_cast<Frame*>(source_frame_refcon); | |
| 807 frame->image.reset(image_buffer, base::scoped_policy::RETAIN); | |
| 808 gpu_task_runner_->PostTask(FROM_HERE, base::Bind( | |
| 809 &VTVideoDecodeAccelerator::DecodeDone, weak_this_, frame)); | |
| 810 } | |
| 811 | |
| 812 void VTVideoDecodeAccelerator::DecodeDone(Frame* frame) { | |
| 813 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 814 DCHECK_EQ(1u, pending_frames_.count(frame->bitstream_id)); | |
| 815 Task task(TASK_FRAME); | |
| 816 task.frame = pending_frames_[frame->bitstream_id]; | |
| 817 pending_frames_.erase(frame->bitstream_id); | |
| 818 task_queue_.push(task); | |
| 819 ProcessWorkQueues(); | |
| 820 } | |
| 821 | |
| 822 void VTVideoDecodeAccelerator::FlushTask(TaskType type) { | |
| 823 DCHECK(decoder_thread_.task_runner()->BelongsToCurrentThread()); | |
| 824 FinishDelayedFrames(); | |
| 825 | |
| 826 // Always queue a task, even if FinishDelayedFrames() fails, so that | |
| 827 // destruction always completes. | |
| 828 gpu_task_runner_->PostTask(FROM_HERE, base::Bind( | |
| 829 &VTVideoDecodeAccelerator::FlushDone, weak_this_, type)); | |
| 830 } | |
| 831 | |
| 832 void VTVideoDecodeAccelerator::FlushDone(TaskType type) { | |
| 833 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 834 task_queue_.push(Task(type)); | |
| 835 ProcessWorkQueues(); | |
| 836 } | |
| 837 | |
| 838 void VTVideoDecodeAccelerator::Decode(const media::BitstreamBuffer& bitstream) { | |
| 839 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 840 if (bitstream.id() < 0) { | |
| 841 DLOG(ERROR) << "Invalid bitstream, id: " << bitstream.id(); | |
| 842 if (base::SharedMemory::IsHandleValid(bitstream.handle())) | |
| 843 base::SharedMemory::CloseHandle(bitstream.handle()); | |
| 844 NotifyError(INVALID_ARGUMENT, SFT_INVALID_STREAM); | |
| 845 return; | |
| 846 } | |
| 847 DCHECK_EQ(0u, assigned_bitstream_ids_.count(bitstream.id())); | |
| 848 assigned_bitstream_ids_.insert(bitstream.id()); | |
| 849 Frame* frame = new Frame(bitstream.id()); | |
| 850 pending_frames_[frame->bitstream_id] = make_linked_ptr(frame); | |
| 851 decoder_thread_.task_runner()->PostTask( | |
| 852 FROM_HERE, base::Bind(&VTVideoDecodeAccelerator::DecodeTask, | |
| 853 base::Unretained(this), bitstream, frame)); | |
| 854 } | |
| 855 | |
| 856 void VTVideoDecodeAccelerator::AssignPictureBuffers( | |
| 857 const std::vector<media::PictureBuffer>& pictures) { | |
| 858 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 859 | |
| 860 for (const media::PictureBuffer& picture : pictures) { | |
| 861 DCHECK(!picture_info_map_.count(picture.id())); | |
| 862 assigned_picture_ids_.insert(picture.id()); | |
| 863 available_picture_ids_.push_back(picture.id()); | |
| 864 DCHECK_LE(1u, picture.internal_texture_ids().size()); | |
| 865 DCHECK_LE(1u, picture.texture_ids().size()); | |
| 866 picture_info_map_.insert(std::make_pair( | |
| 867 picture.id(), | |
| 868 base::WrapUnique(new PictureInfo(picture.internal_texture_ids()[0], | |
| 869 picture.texture_ids()[0])))); | |
| 870 } | |
| 871 | |
| 872 // Pictures are not marked as uncleared until after this method returns, and | |
| 873 // they will be broken if they are used before that happens. So, schedule | |
| 874 // future work after that happens. | |
| 875 gpu_task_runner_->PostTask(FROM_HERE, base::Bind( | |
| 876 &VTVideoDecodeAccelerator::ProcessWorkQueues, weak_this_)); | |
| 877 } | |
| 878 | |
| 879 void VTVideoDecodeAccelerator::ReusePictureBuffer(int32_t picture_id) { | |
| 880 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 881 DCHECK(picture_info_map_.count(picture_id)); | |
| 882 PictureInfo* picture_info = picture_info_map_.find(picture_id)->second.get(); | |
| 883 picture_info->cv_image.reset(); | |
| 884 picture_info->gl_image->Destroy(false); | |
| 885 picture_info->gl_image = nullptr; | |
| 886 | |
| 887 if (assigned_picture_ids_.count(picture_id) != 0) { | |
| 888 available_picture_ids_.push_back(picture_id); | |
| 889 ProcessWorkQueues(); | |
| 890 } else { | |
| 891 client_->DismissPictureBuffer(picture_id); | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 void VTVideoDecodeAccelerator::ProcessWorkQueues() { | |
| 896 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 897 switch (state_) { | |
| 898 case STATE_DECODING: | |
| 899 // TODO(sandersd): Batch where possible. | |
| 900 while (state_ == STATE_DECODING) { | |
| 901 if (!ProcessReorderQueue() && !ProcessTaskQueue()) | |
| 902 break; | |
| 903 } | |
| 904 return; | |
| 905 | |
| 906 case STATE_ERROR: | |
| 907 // Do nothing until Destroy() is called. | |
| 908 return; | |
| 909 | |
| 910 case STATE_DESTROYING: | |
| 911 // Drop tasks until we are ready to destruct. | |
| 912 while (!task_queue_.empty()) { | |
| 913 if (task_queue_.front().type == TASK_DESTROY) { | |
| 914 delete this; | |
| 915 return; | |
| 916 } | |
| 917 task_queue_.pop(); | |
| 918 } | |
| 919 return; | |
| 920 } | |
| 921 } | |
| 922 | |
| 923 bool VTVideoDecodeAccelerator::ProcessTaskQueue() { | |
| 924 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 925 DCHECK_EQ(state_, STATE_DECODING); | |
| 926 | |
| 927 if (task_queue_.empty()) | |
| 928 return false; | |
| 929 | |
| 930 const Task& task = task_queue_.front(); | |
| 931 switch (task.type) { | |
| 932 case TASK_FRAME: | |
| 933 if (reorder_queue_.size() < kMaxReorderQueueSize && | |
| 934 (!task.frame->is_idr || reorder_queue_.empty())) { | |
| 935 assigned_bitstream_ids_.erase(task.frame->bitstream_id); | |
| 936 client_->NotifyEndOfBitstreamBuffer(task.frame->bitstream_id); | |
| 937 reorder_queue_.push(task.frame); | |
| 938 task_queue_.pop(); | |
| 939 return true; | |
| 940 } | |
| 941 return false; | |
| 942 | |
| 943 case TASK_FLUSH: | |
| 944 DCHECK_EQ(task.type, pending_flush_tasks_.front()); | |
| 945 if (reorder_queue_.size() == 0) { | |
| 946 pending_flush_tasks_.pop(); | |
| 947 client_->NotifyFlushDone(); | |
| 948 task_queue_.pop(); | |
| 949 return true; | |
| 950 } | |
| 951 return false; | |
| 952 | |
| 953 case TASK_RESET: | |
| 954 DCHECK_EQ(task.type, pending_flush_tasks_.front()); | |
| 955 if (reorder_queue_.size() == 0) { | |
| 956 waiting_for_idr_ = true; | |
| 957 pending_flush_tasks_.pop(); | |
| 958 client_->NotifyResetDone(); | |
| 959 task_queue_.pop(); | |
| 960 return true; | |
| 961 } | |
| 962 return false; | |
| 963 | |
| 964 case TASK_DESTROY: | |
| 965 NOTREACHED() << "Can't destroy while in STATE_DECODING."; | |
| 966 NotifyError(ILLEGAL_STATE, SFT_PLATFORM_ERROR); | |
| 967 return false; | |
| 968 } | |
| 969 } | |
| 970 | |
| 971 bool VTVideoDecodeAccelerator::ProcessReorderQueue() { | |
| 972 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 973 DCHECK_EQ(state_, STATE_DECODING); | |
| 974 | |
| 975 if (reorder_queue_.empty()) | |
| 976 return false; | |
| 977 | |
| 978 // If the next task is a flush (because there is a pending flush or becuase | |
| 979 // the next frame is an IDR), then we don't need a full reorder buffer to send | |
| 980 // the next frame. | |
| 981 bool flushing = !task_queue_.empty() && | |
| 982 (task_queue_.front().type != TASK_FRAME || | |
| 983 task_queue_.front().frame->is_idr); | |
| 984 | |
| 985 size_t reorder_window = std::max(0, reorder_queue_.top()->reorder_window); | |
| 986 if (flushing || reorder_queue_.size() > reorder_window) { | |
| 987 if (ProcessFrame(*reorder_queue_.top())) { | |
| 988 reorder_queue_.pop(); | |
| 989 return true; | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 return false; | |
| 994 } | |
| 995 | |
| 996 bool VTVideoDecodeAccelerator::ProcessFrame(const Frame& frame) { | |
| 997 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 998 DCHECK_EQ(state_, STATE_DECODING); | |
| 999 | |
| 1000 // If the next pending flush is for a reset, then the frame will be dropped. | |
| 1001 bool resetting = !pending_flush_tasks_.empty() && | |
| 1002 pending_flush_tasks_.front() == TASK_RESET; | |
| 1003 | |
| 1004 if (!resetting && frame.image.get()) { | |
| 1005 // If the |coded_size| has changed, request new picture buffers and then | |
| 1006 // wait for them. | |
| 1007 // TODO(sandersd): If GpuVideoDecoder didn't specifically check the size of | |
| 1008 // textures, this would be unnecessary, as the size is actually a property | |
| 1009 // of the texture binding, not the texture. We rebind every frame, so the | |
| 1010 // size passed to ProvidePictureBuffers() is meaningless. | |
| 1011 if (picture_size_ != frame.coded_size) { | |
| 1012 // Dismiss current pictures. | |
| 1013 for (int32_t picture_id : assigned_picture_ids_) | |
| 1014 client_->DismissPictureBuffer(picture_id); | |
| 1015 assigned_picture_ids_.clear(); | |
| 1016 available_picture_ids_.clear(); | |
| 1017 | |
| 1018 // Request new pictures. | |
| 1019 picture_size_ = frame.coded_size; | |
| 1020 client_->ProvidePictureBuffers(kNumPictureBuffers, 1, coded_size_, | |
| 1021 GL_TEXTURE_RECTANGLE_ARB); | |
| 1022 return false; | |
| 1023 } | |
| 1024 if (!SendFrame(frame)) | |
| 1025 return false; | |
| 1026 } | |
| 1027 | |
| 1028 return true; | |
| 1029 } | |
| 1030 | |
| 1031 bool VTVideoDecodeAccelerator::SendFrame(const Frame& frame) { | |
| 1032 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 1033 DCHECK_EQ(state_, STATE_DECODING); | |
| 1034 | |
| 1035 if (available_picture_ids_.empty()) | |
| 1036 return false; | |
| 1037 | |
| 1038 int32_t picture_id = available_picture_ids_.back(); | |
| 1039 DCHECK(picture_info_map_.count(picture_id)); | |
| 1040 PictureInfo* picture_info = picture_info_map_.find(picture_id)->second.get(); | |
| 1041 DCHECK(!picture_info->cv_image); | |
| 1042 DCHECK(!picture_info->gl_image); | |
| 1043 | |
| 1044 if (!make_context_current_cb_.Run()) { | |
| 1045 DLOG(ERROR) << "Failed to make GL context current"; | |
| 1046 NotifyError(PLATFORM_FAILURE, SFT_PLATFORM_ERROR); | |
| 1047 return false; | |
| 1048 } | |
| 1049 | |
| 1050 scoped_refptr<gl::GLImageIOSurface> gl_image( | |
| 1051 new gl::GLImageIOSurface(frame.coded_size, GL_BGRA_EXT)); | |
| 1052 if (!gl_image->InitializeWithCVPixelBuffer( | |
| 1053 frame.image.get(), gfx::GenericSharedMemoryId(), | |
| 1054 gfx::BufferFormat::YUV_420_BIPLANAR)) { | |
| 1055 NOTIFY_STATUS("Failed to initialize GLImageIOSurface", PLATFORM_FAILURE, | |
| 1056 SFT_PLATFORM_ERROR); | |
| 1057 } | |
| 1058 | |
| 1059 if (!bind_image_cb_.Run(picture_info->client_texture_id, | |
| 1060 GL_TEXTURE_RECTANGLE_ARB, gl_image, false)) { | |
| 1061 DLOG(ERROR) << "Failed to bind image"; | |
| 1062 NotifyError(PLATFORM_FAILURE, SFT_PLATFORM_ERROR); | |
| 1063 return false; | |
| 1064 } | |
| 1065 | |
| 1066 // Assign the new image(s) to the the picture info. | |
| 1067 picture_info->gl_image = gl_image; | |
| 1068 picture_info->cv_image = frame.image; | |
| 1069 available_picture_ids_.pop_back(); | |
| 1070 | |
| 1071 // TODO(sandersd): Currently, the size got from | |
| 1072 // CMVideoFormatDescriptionGetDimensions is visible size. We pass it to | |
| 1073 // GpuVideoDecoder so that GpuVideoDecoder can use correct visible size in | |
| 1074 // resolution changed. We should find the correct API to get the real | |
| 1075 // coded size and fix it. | |
| 1076 client_->PictureReady(media::Picture(picture_id, frame.bitstream_id, | |
| 1077 gfx::Rect(frame.coded_size), | |
| 1078 true)); | |
| 1079 return true; | |
| 1080 } | |
| 1081 | |
| 1082 void VTVideoDecodeAccelerator::NotifyError( | |
| 1083 Error vda_error_type, | |
| 1084 VTVDASessionFailureType session_failure_type) { | |
| 1085 DCHECK_LT(session_failure_type, SFT_MAX + 1); | |
| 1086 if (!gpu_thread_checker_.CalledOnValidThread()) { | |
| 1087 gpu_task_runner_->PostTask(FROM_HERE, base::Bind( | |
| 1088 &VTVideoDecodeAccelerator::NotifyError, weak_this_, vda_error_type, | |
| 1089 session_failure_type)); | |
| 1090 } else if (state_ == STATE_DECODING) { | |
| 1091 state_ = STATE_ERROR; | |
| 1092 UMA_HISTOGRAM_ENUMERATION("Media.VTVDA.SessionFailureReason", | |
| 1093 session_failure_type, | |
| 1094 SFT_MAX + 1); | |
| 1095 client_->NotifyError(vda_error_type); | |
| 1096 } | |
| 1097 } | |
| 1098 | |
| 1099 void VTVideoDecodeAccelerator::QueueFlush(TaskType type) { | |
| 1100 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 1101 pending_flush_tasks_.push(type); | |
| 1102 decoder_thread_.task_runner()->PostTask( | |
| 1103 FROM_HERE, base::Bind(&VTVideoDecodeAccelerator::FlushTask, | |
| 1104 base::Unretained(this), type)); | |
| 1105 | |
| 1106 // If this is a new flush request, see if we can make progress. | |
| 1107 if (pending_flush_tasks_.size() == 1) | |
| 1108 ProcessWorkQueues(); | |
| 1109 } | |
| 1110 | |
| 1111 void VTVideoDecodeAccelerator::Flush() { | |
| 1112 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 1113 QueueFlush(TASK_FLUSH); | |
| 1114 } | |
| 1115 | |
| 1116 void VTVideoDecodeAccelerator::Reset() { | |
| 1117 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 1118 QueueFlush(TASK_RESET); | |
| 1119 } | |
| 1120 | |
| 1121 void VTVideoDecodeAccelerator::Destroy() { | |
| 1122 DCHECK(gpu_thread_checker_.CalledOnValidThread()); | |
| 1123 | |
| 1124 // In a forceful shutdown, the decoder thread may be dead already. | |
| 1125 if (!decoder_thread_.IsRunning()) { | |
| 1126 delete this; | |
| 1127 return; | |
| 1128 } | |
| 1129 | |
| 1130 // For a graceful shutdown, return assigned buffers and flush before | |
| 1131 // destructing |this|. | |
| 1132 // TODO(sandersd): Prevent the decoder from reading buffers before discarding | |
| 1133 // them. | |
| 1134 for (int32_t bitstream_id : assigned_bitstream_ids_) | |
| 1135 client_->NotifyEndOfBitstreamBuffer(bitstream_id); | |
| 1136 assigned_bitstream_ids_.clear(); | |
| 1137 state_ = STATE_DESTROYING; | |
| 1138 QueueFlush(TASK_DESTROY); | |
| 1139 } | |
| 1140 | |
| 1141 bool VTVideoDecodeAccelerator::TryToSetupDecodeOnSeparateThread( | |
| 1142 const base::WeakPtr<Client>& decode_client, | |
| 1143 const scoped_refptr<base::SingleThreadTaskRunner>& decode_task_runner) { | |
| 1144 return false; | |
| 1145 } | |
| 1146 | |
| 1147 // static | |
| 1148 media::VideoDecodeAccelerator::SupportedProfiles | |
| 1149 VTVideoDecodeAccelerator::GetSupportedProfiles() { | |
| 1150 SupportedProfiles profiles; | |
| 1151 for (const auto& supported_profile : kSupportedProfiles) { | |
| 1152 SupportedProfile profile; | |
| 1153 profile.profile = supported_profile; | |
| 1154 profile.min_resolution.SetSize(16, 16); | |
| 1155 profile.max_resolution.SetSize(4096, 2160); | |
| 1156 profiles.push_back(profile); | |
| 1157 } | |
| 1158 return profiles; | |
| 1159 } | |
| 1160 | |
| 1161 } // namespace content | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1882373004:
Migrate content/common/gpu/media code to media/gpu (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master