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| 1 // Copyright (c) 2013 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/android_video_decode_accelerator.h" | |
| 6 | |
| 7 #include <stddef.h> | |
| 8 | |
| 9 #include "base/android/build_info.h" | |
| 10 #include "base/auto_reset.h" | |
| 11 #include "base/bind.h" | |
| 12 #include "base/bind_helpers.h" | |
| 13 #include "base/command_line.h" | |
| 14 #include "base/lazy_instance.h" | |
| 15 #include "base/logging.h" | |
| 16 #include "base/message_loop/message_loop.h" | |
| 17 #include "base/metrics/histogram.h" | |
| 18 #include "base/task_runner_util.h" | |
| 19 #include "base/trace_event/trace_event.h" | |
| 20 #include "content/common/gpu/media/android_copying_backing_strategy.h" | |
| 21 #include "content/common/gpu/media/android_deferred_rendering_backing_strategy.h
" | |
| 22 #include "content/common/gpu/media/avda_return_on_failure.h" | |
| 23 #include "content/common/gpu/media/shared_memory_region.h" | |
| 24 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" | |
| 25 #include "gpu/command_buffer/service/mailbox_manager.h" | |
| 26 #include "gpu/ipc/service/gpu_channel.h" | |
| 27 #include "media/base/android/media_codec_bridge.h" | |
| 28 #include "media/base/android/media_codec_util.h" | |
| 29 #include "media/base/bind_to_current_loop.h" | |
| 30 #include "media/base/bitstream_buffer.h" | |
| 31 #include "media/base/limits.h" | |
| 32 #include "media/base/media.h" | |
| 33 #include "media/base/timestamp_constants.h" | |
| 34 #include "media/base/video_decoder_config.h" | |
| 35 #include "media/video/picture.h" | |
| 36 #include "ui/gl/android/scoped_java_surface.h" | |
| 37 #include "ui/gl/android/surface_texture.h" | |
| 38 #include "ui/gl/gl_bindings.h" | |
| 39 | |
| 40 #if defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS) | |
| 41 #include "media/mojo/services/mojo_cdm_service.h" | |
| 42 #endif | |
| 43 | |
| 44 #define POST_ERROR(error_code, error_message) \ | |
| 45 do { \ | |
| 46 DLOG(ERROR) << error_message; \ | |
| 47 PostError(FROM_HERE, media::VideoDecodeAccelerator::error_code); \ | |
| 48 } while (0) | |
| 49 | |
| 50 namespace content { | |
| 51 | |
| 52 enum { kNumPictureBuffers = media::limits::kMaxVideoFrames + 1 }; | |
| 53 | |
| 54 // Max number of bitstreams notified to the client with | |
| 55 // NotifyEndOfBitstreamBuffer() before getting output from the bitstream. | |
| 56 enum { kMaxBitstreamsNotifiedInAdvance = 32 }; | |
| 57 | |
| 58 // MediaCodec is only guaranteed to support baseline, but some devices may | |
| 59 // support others. Advertise support for all H264 profiles and let the | |
| 60 // MediaCodec fail when decoding if it's not actually supported. It's assumed | |
| 61 // that consumers won't have software fallback for H264 on Android anyway. | |
| 62 static const media::VideoCodecProfile kSupportedH264Profiles[] = { | |
| 63 media::H264PROFILE_BASELINE, | |
| 64 media::H264PROFILE_MAIN, | |
| 65 media::H264PROFILE_EXTENDED, | |
| 66 media::H264PROFILE_HIGH, | |
| 67 media::H264PROFILE_HIGH10PROFILE, | |
| 68 media::H264PROFILE_HIGH422PROFILE, | |
| 69 media::H264PROFILE_HIGH444PREDICTIVEPROFILE, | |
| 70 media::H264PROFILE_SCALABLEBASELINE, | |
| 71 media::H264PROFILE_SCALABLEHIGH, | |
| 72 media::H264PROFILE_STEREOHIGH, | |
| 73 media::H264PROFILE_MULTIVIEWHIGH | |
| 74 }; | |
| 75 | |
| 76 // Because MediaCodec is thread-hostile (must be poked on a single thread) and | |
| 77 // has no callback mechanism (b/11990118), we must drive it by polling for | |
| 78 // complete frames (and available input buffers, when the codec is fully | |
| 79 // saturated). This function defines the polling delay. The value used is an | |
| 80 // arbitrary choice that trades off CPU utilization (spinning) against latency. | |
| 81 // Mirrors android_video_encode_accelerator.cc:EncodePollDelay(). | |
| 82 static inline const base::TimeDelta DecodePollDelay() { | |
| 83 // An alternative to this polling scheme could be to dedicate a new thread | |
| 84 // (instead of using the ChildThread) to run the MediaCodec, and make that | |
| 85 // thread use the timeout-based flavor of MediaCodec's dequeue methods when it | |
| 86 // believes the codec should complete "soon" (e.g. waiting for an input | |
| 87 // buffer, or waiting for a picture when it knows enough complete input | |
| 88 // pictures have been fed to saturate any internal buffering). This is | |
| 89 // speculative and it's unclear that this would be a win (nor that there's a | |
| 90 // reasonably device-agnostic way to fill in the "believes" above). | |
| 91 return base::TimeDelta::FromMilliseconds(10); | |
| 92 } | |
| 93 | |
| 94 static inline const base::TimeDelta NoWaitTimeOut() { | |
| 95 return base::TimeDelta::FromMicroseconds(0); | |
| 96 } | |
| 97 | |
| 98 static inline const base::TimeDelta IdleTimerTimeOut() { | |
| 99 return base::TimeDelta::FromSeconds(1); | |
| 100 } | |
| 101 | |
| 102 // Time between when we notice an error, and when we actually notify somebody. | |
| 103 // This is to prevent codec errors caused by SurfaceView fullscreen transitions | |
| 104 // from breaking the pipeline, if we're about to be reset anyway. | |
| 105 static inline const base::TimeDelta ErrorPostingDelay() { | |
| 106 return base::TimeDelta::FromSeconds(2); | |
| 107 } | |
| 108 | |
| 109 // For RecordFormatChangedMetric. | |
| 110 enum FormatChangedValue { | |
| 111 CodecInitialized = false, | |
| 112 MissingFormatChanged = true | |
| 113 }; | |
| 114 | |
| 115 static inline void RecordFormatChangedMetric(FormatChangedValue value) { | |
| 116 UMA_HISTOGRAM_BOOLEAN("Media.AVDA.MissingFormatChanged", !!value); | |
| 117 } | |
| 118 | |
| 119 // Handle OnFrameAvailable callbacks safely. Since they occur asynchronously, | |
| 120 // we take care that the AVDA that wants them still exists. A WeakPtr to | |
| 121 // the AVDA would be preferable, except that OnFrameAvailable callbacks can | |
| 122 // occur off the gpu main thread. We also can't guarantee when the | |
| 123 // SurfaceTexture will quit sending callbacks to coordinate with the | |
| 124 // destruction of the AVDA, so we have a separate object that the cb can own. | |
| 125 class AndroidVideoDecodeAccelerator::OnFrameAvailableHandler | |
| 126 : public base::RefCountedThreadSafe<OnFrameAvailableHandler> { | |
| 127 public: | |
| 128 // We do not retain ownership of |owner|. It must remain valid until | |
| 129 // after ClearOwner() is called. This will register with | |
| 130 // |surface_texture| to receive OnFrameAvailable callbacks. | |
| 131 OnFrameAvailableHandler( | |
| 132 AndroidVideoDecodeAccelerator* owner, | |
| 133 const scoped_refptr<gfx::SurfaceTexture>& surface_texture) | |
| 134 : owner_(owner) { | |
| 135 // Note that the callback owns a strong ref to us. | |
| 136 surface_texture->SetFrameAvailableCallbackOnAnyThread( | |
| 137 base::Bind(&OnFrameAvailableHandler::OnFrameAvailable, | |
| 138 scoped_refptr<OnFrameAvailableHandler>(this))); | |
| 139 } | |
| 140 | |
| 141 // Forget about our owner, which is required before one deletes it. | |
| 142 // No further callbacks will happen once this completes. | |
| 143 void ClearOwner() { | |
| 144 base::AutoLock lock(lock_); | |
| 145 // No callback can happen until we release the lock. | |
| 146 owner_ = nullptr; | |
| 147 } | |
| 148 | |
| 149 // Call back into our owner if it hasn't been deleted. | |
| 150 void OnFrameAvailable() { | |
| 151 base::AutoLock auto_lock(lock_); | |
| 152 // |owner_| can't be deleted while we have the lock. | |
| 153 if (owner_) | |
| 154 owner_->OnFrameAvailable(); | |
| 155 } | |
| 156 | |
| 157 private: | |
| 158 friend class base::RefCountedThreadSafe<OnFrameAvailableHandler>; | |
| 159 virtual ~OnFrameAvailableHandler() {} | |
| 160 | |
| 161 // Protects changes to owner_. | |
| 162 base::Lock lock_; | |
| 163 | |
| 164 // AVDA that wants the OnFrameAvailable callback. | |
| 165 AndroidVideoDecodeAccelerator* owner_; | |
| 166 | |
| 167 DISALLOW_COPY_AND_ASSIGN(OnFrameAvailableHandler); | |
| 168 }; | |
| 169 | |
| 170 // Helper class to share an IO timer for DoIOTask() execution; prevents each | |
| 171 // AVDA instance from starting its own high frequency timer. The intuition | |
| 172 // behind this is that, if we're waiting for long enough, then either (a) | |
| 173 // MediaCodec is broken or (b) MediaCodec is waiting on us to change state | |
| 174 // (e.g., get new demuxed data / get a free picture buffer / return an output | |
| 175 // buffer to MediaCodec). This is inherently a race, since we don't know if | |
| 176 // MediaCodec is broken or just slow. Since the MediaCodec API doesn't let | |
| 177 // us wait on MediaCodec state changes prior to L, we more or less have to | |
| 178 // time out or keep polling forever in some common cases. | |
| 179 class AVDATimerManager { | |
| 180 public: | |
| 181 // Make sure that the construction thread is started for |avda_instance|. | |
| 182 void StartThread(AndroidVideoDecodeAccelerator* avda_instance) { | |
| 183 if (thread_avda_instances_.empty()) | |
| 184 construction_thread_.Start(); | |
| 185 | |
| 186 thread_avda_instances_.insert(avda_instance); | |
| 187 } | |
| 188 | |
| 189 // |avda_instance| will no longer need the construction thread. Stop the | |
| 190 // thread if this is the last instance. | |
| 191 void StopThread(AndroidVideoDecodeAccelerator* avda_instance) { | |
| 192 thread_avda_instances_.erase(avda_instance); | |
| 193 if (thread_avda_instances_.empty()) | |
| 194 construction_thread_.Stop(); | |
| 195 } | |
| 196 | |
| 197 // Request periodic callback of |avda_instance|->DoIOTask(). Does nothing if | |
| 198 // the instance is already registered and the timer started. The first request | |
| 199 // will start the repeating timer on an interval of DecodePollDelay(). | |
| 200 void StartTimer(AndroidVideoDecodeAccelerator* avda_instance) { | |
| 201 timer_avda_instances_.insert(avda_instance); | |
| 202 | |
| 203 // If the timer is running, StopTimer() might have been called earlier, if | |
| 204 // so remove the instance from the pending erasures. | |
| 205 if (timer_running_) | |
| 206 pending_erase_.erase(avda_instance); | |
| 207 | |
| 208 if (io_timer_.IsRunning()) | |
| 209 return; | |
| 210 io_timer_.Start(FROM_HERE, DecodePollDelay(), this, | |
| 211 &AVDATimerManager::RunTimer); | |
| 212 } | |
| 213 | |
| 214 // Stop callbacks to |avda_instance|->DoIOTask(). Does nothing if the instance | |
| 215 // is not registered. If there are no instances left, the repeating timer will | |
| 216 // be stopped. | |
| 217 void StopTimer(AndroidVideoDecodeAccelerator* avda_instance) { | |
| 218 // If the timer is running, defer erasures to avoid iterator invalidation. | |
| 219 if (timer_running_) { | |
| 220 pending_erase_.insert(avda_instance); | |
| 221 return; | |
| 222 } | |
| 223 | |
| 224 timer_avda_instances_.erase(avda_instance); | |
| 225 if (timer_avda_instances_.empty()) | |
| 226 io_timer_.Stop(); | |
| 227 } | |
| 228 | |
| 229 // Eventually, we should run the timer on this thread. For now, we just keep | |
| 230 // it as a convenience for construction. | |
| 231 scoped_refptr<base::SingleThreadTaskRunner> ConstructionTaskRunner() { | |
| 232 return construction_thread_.task_runner(); | |
| 233 } | |
| 234 | |
| 235 private: | |
| 236 friend struct base::DefaultLazyInstanceTraits<AVDATimerManager>; | |
| 237 | |
| 238 AVDATimerManager() : construction_thread_("AVDAThread") {} | |
| 239 ~AVDATimerManager() { NOTREACHED(); } | |
| 240 | |
| 241 void RunTimer() { | |
| 242 { | |
| 243 // Call out to all AVDA instances, some of which may attempt to remove | |
| 244 // themselves from the list during this operation; those removals will be | |
| 245 // deferred until after all iterations are complete. | |
| 246 base::AutoReset<bool> scoper(&timer_running_, true); | |
| 247 for (auto* avda : timer_avda_instances_) | |
| 248 avda->DoIOTask(false); | |
| 249 } | |
| 250 | |
| 251 // Take care of any deferred erasures. | |
| 252 for (auto* avda : pending_erase_) | |
| 253 StopTimer(avda); | |
| 254 pending_erase_.clear(); | |
| 255 | |
| 256 // TODO(dalecurtis): We may want to consider chunking this if task execution | |
| 257 // takes too long for the combined timer. | |
| 258 } | |
| 259 | |
| 260 // All AVDA instances that would like us to poll DoIOTask. | |
| 261 std::set<AndroidVideoDecodeAccelerator*> timer_avda_instances_; | |
| 262 | |
| 263 // All AVDA instances that might like to use the construction thread. | |
| 264 std::set<AndroidVideoDecodeAccelerator*> thread_avda_instances_; | |
| 265 | |
| 266 // Since we can't delete while iterating when using a set, defer erasure until | |
| 267 // after iteration complete. | |
| 268 bool timer_running_ = false; | |
| 269 std::set<AndroidVideoDecodeAccelerator*> pending_erase_; | |
| 270 | |
| 271 // Repeating timer responsible for draining pending IO to the codecs. | |
| 272 base::RepeatingTimer io_timer_; | |
| 273 | |
| 274 base::Thread construction_thread_; | |
| 275 | |
| 276 DISALLOW_COPY_AND_ASSIGN(AVDATimerManager); | |
| 277 }; | |
| 278 | |
| 279 static base::LazyInstance<AVDATimerManager>::Leaky g_avda_timer = | |
| 280 LAZY_INSTANCE_INITIALIZER; | |
| 281 | |
| 282 AndroidVideoDecodeAccelerator::CodecConfig::CodecConfig() {} | |
| 283 | |
| 284 AndroidVideoDecodeAccelerator::CodecConfig::~CodecConfig() {} | |
| 285 | |
| 286 AndroidVideoDecodeAccelerator::AndroidVideoDecodeAccelerator( | |
| 287 const MakeGLContextCurrentCallback& make_context_current_cb, | |
| 288 const GetGLES2DecoderCallback& get_gles2_decoder_cb) | |
| 289 : client_(NULL), | |
| 290 make_context_current_cb_(make_context_current_cb), | |
| 291 get_gles2_decoder_cb_(get_gles2_decoder_cb), | |
| 292 is_encrypted_(false), | |
| 293 state_(NO_ERROR), | |
| 294 picturebuffers_requested_(false), | |
| 295 media_drm_bridge_cdm_context_(nullptr), | |
| 296 cdm_registration_id_(0), | |
| 297 pending_input_buf_index_(-1), | |
| 298 error_sequence_token_(0), | |
| 299 defer_errors_(false), | |
| 300 deferred_initialization_pending_(false), | |
| 301 weak_this_factory_(this) {} | |
| 302 | |
| 303 AndroidVideoDecodeAccelerator::~AndroidVideoDecodeAccelerator() { | |
| 304 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 305 g_avda_timer.Pointer()->StopTimer(this); | |
| 306 g_avda_timer.Pointer()->StopThread(this); | |
| 307 | |
| 308 #if defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS) | |
| 309 if (!media_drm_bridge_cdm_context_) | |
| 310 return; | |
| 311 | |
| 312 DCHECK(cdm_registration_id_); | |
| 313 media_drm_bridge_cdm_context_->UnregisterPlayer(cdm_registration_id_); | |
| 314 #endif // defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS) | |
| 315 } | |
| 316 | |
| 317 bool AndroidVideoDecodeAccelerator::Initialize(const Config& config, | |
| 318 Client* client) { | |
| 319 DCHECK(!media_codec_); | |
| 320 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 321 TRACE_EVENT0("media", "AVDA::Initialize"); | |
| 322 | |
| 323 DVLOG(1) << __FUNCTION__ << ": " << config.AsHumanReadableString(); | |
| 324 | |
| 325 if (make_context_current_cb_.is_null() || get_gles2_decoder_cb_.is_null()) { | |
| 326 NOTREACHED() << "GL callbacks are required for this VDA"; | |
| 327 return false; | |
| 328 } | |
| 329 | |
| 330 DCHECK(client); | |
| 331 client_ = client; | |
| 332 codec_config_ = new CodecConfig(); | |
| 333 codec_config_->codec_ = VideoCodecProfileToVideoCodec(config.profile); | |
| 334 codec_config_->initial_expected_coded_size_ = | |
| 335 config.initial_expected_coded_size; | |
| 336 is_encrypted_ = config.is_encrypted; | |
| 337 | |
| 338 bool profile_supported = codec_config_->codec_ == media::kCodecVP8 || | |
| 339 codec_config_->codec_ == media::kCodecVP9 || | |
| 340 codec_config_->codec_ == media::kCodecH264; | |
| 341 | |
| 342 // We signalled that we support deferred initialization, so see if the client | |
| 343 // does also. | |
| 344 deferred_initialization_pending_ = config.is_deferred_initialization_allowed; | |
| 345 | |
| 346 if (!profile_supported) { | |
| 347 LOG(ERROR) << "Unsupported profile: " << config.profile; | |
| 348 return false; | |
| 349 } | |
| 350 | |
| 351 // For encrypted streams we postpone configuration until MediaCrypto is | |
| 352 // available. | |
| 353 DCHECK(!is_encrypted_ || deferred_initialization_pending_); | |
| 354 | |
| 355 // Only use MediaCodec for VP8/9 if it's likely backed by hardware | |
| 356 // or if the stream is encrypted. | |
| 357 if ((codec_config_->codec_ == media::kCodecVP8 || | |
| 358 codec_config_->codec_ == media::kCodecVP9) && | |
| 359 !is_encrypted_ && | |
| 360 media::VideoCodecBridge::IsKnownUnaccelerated( | |
| 361 codec_config_->codec_, media::MEDIA_CODEC_DECODER)) { | |
| 362 DVLOG(1) << "Initialization failed: " | |
| 363 << (codec_config_->codec_ == media::kCodecVP8 ? "vp8" : "vp9") | |
| 364 << " is not hardware accelerated"; | |
| 365 return false; | |
| 366 } | |
| 367 | |
| 368 auto gles_decoder = get_gles2_decoder_cb_.Run(); | |
| 369 if (!gles_decoder) { | |
| 370 LOG(ERROR) << "Failed to get gles2 decoder instance."; | |
| 371 return false; | |
| 372 } | |
| 373 | |
| 374 const gpu::GpuPreferences& gpu_preferences = | |
| 375 gles_decoder->GetContextGroup()->gpu_preferences(); | |
| 376 | |
| 377 if (UseDeferredRenderingStrategy(gpu_preferences)) { | |
| 378 // TODO(liberato, watk): Figure out what we want to do about zero copy for | |
| 379 // fullscreen external SurfaceView in WebView. http://crbug.com/582170. | |
| 380 DCHECK(!gles_decoder->GetContextGroup()->mailbox_manager()->UsesSync()); | |
| 381 DVLOG(1) << __FUNCTION__ << ", using deferred rendering strategy."; | |
| 382 strategy_.reset(new AndroidDeferredRenderingBackingStrategy(this)); | |
| 383 } else { | |
| 384 DVLOG(1) << __FUNCTION__ << ", using copy back strategy."; | |
| 385 strategy_.reset(new AndroidCopyingBackingStrategy(this)); | |
| 386 } | |
| 387 | |
| 388 if (!make_context_current_cb_.Run()) { | |
| 389 LOG(ERROR) << "Failed to make this decoder's GL context current."; | |
| 390 return false; | |
| 391 } | |
| 392 | |
| 393 codec_config_->surface_ = strategy_->Initialize(config.surface_id); | |
| 394 if (codec_config_->surface_.IsEmpty()) { | |
| 395 LOG(ERROR) << "Failed to initialize the backing strategy. The returned " | |
| 396 "Java surface is empty."; | |
| 397 return false; | |
| 398 } | |
| 399 | |
| 400 // TODO(watk,liberato): move this into the strategy. | |
| 401 scoped_refptr<gfx::SurfaceTexture> surface_texture = | |
| 402 strategy_->GetSurfaceTexture(); | |
| 403 if (surface_texture) { | |
| 404 on_frame_available_handler_ = | |
| 405 new OnFrameAvailableHandler(this, surface_texture); | |
| 406 } | |
| 407 | |
| 408 // Start the thread for async configuration, even if we don't need it now. | |
| 409 // ResetCodecState might rebuild the codec later, for example. | |
| 410 g_avda_timer.Pointer()->StartThread(this); | |
| 411 | |
| 412 // If we are encrypted, then we aren't able to create the codec yet. | |
| 413 if (is_encrypted_) | |
| 414 return true; | |
| 415 | |
| 416 if (deferred_initialization_pending_) { | |
| 417 ConfigureMediaCodecAsynchronously(); | |
| 418 return true; | |
| 419 } | |
| 420 | |
| 421 // If the client doesn't support deferred initialization (WebRTC), then we | |
| 422 // should complete it now and return a meaningful result. | |
| 423 return ConfigureMediaCodecSynchronously(); | |
| 424 } | |
| 425 | |
| 426 void AndroidVideoDecodeAccelerator::SetCdm(int cdm_id) { | |
| 427 DVLOG(2) << __FUNCTION__ << ": " << cdm_id; | |
| 428 | |
| 429 #if defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS) | |
| 430 DCHECK(client_) << "SetCdm() must be called after Initialize()."; | |
| 431 | |
| 432 if (media_drm_bridge_cdm_context_) { | |
| 433 NOTREACHED() << "We do not support resetting CDM."; | |
| 434 NotifyInitializationComplete(false); | |
| 435 return; | |
| 436 } | |
| 437 | |
| 438 // Store the CDM to hold a reference to it. | |
| 439 cdm_for_reference_holding_only_ = media::MojoCdmService::LegacyGetCdm(cdm_id); | |
| 440 DCHECK(cdm_for_reference_holding_only_); | |
| 441 | |
| 442 // On Android platform the CdmContext must be a MediaDrmBridgeCdmContext. | |
| 443 media_drm_bridge_cdm_context_ = static_cast<media::MediaDrmBridgeCdmContext*>( | |
| 444 cdm_for_reference_holding_only_->GetCdmContext()); | |
| 445 DCHECK(media_drm_bridge_cdm_context_); | |
| 446 | |
| 447 // Register CDM callbacks. The callbacks registered will be posted back to | |
| 448 // this thread via BindToCurrentLoop. | |
| 449 | |
| 450 // Since |this| holds a reference to the |cdm_|, by the time the CDM is | |
| 451 // destructed, UnregisterPlayer() must have been called and |this| has been | |
| 452 // destructed as well. So the |cdm_unset_cb| will never have a chance to be | |
| 453 // called. | |
| 454 // TODO(xhwang): Remove |cdm_unset_cb| after it's not used on all platforms. | |
| 455 cdm_registration_id_ = media_drm_bridge_cdm_context_->RegisterPlayer( | |
| 456 media::BindToCurrentLoop( | |
| 457 base::Bind(&AndroidVideoDecodeAccelerator::OnKeyAdded, | |
| 458 weak_this_factory_.GetWeakPtr())), | |
| 459 base::Bind(&base::DoNothing)); | |
| 460 | |
| 461 media_drm_bridge_cdm_context_->SetMediaCryptoReadyCB(media::BindToCurrentLoop( | |
| 462 base::Bind(&AndroidVideoDecodeAccelerator::OnMediaCryptoReady, | |
| 463 weak_this_factory_.GetWeakPtr()))); | |
| 464 | |
| 465 // Postpone NotifyInitializationComplete() call till we create the MediaCodec | |
| 466 // after OnMediaCryptoReady(). | |
| 467 #else | |
| 468 | |
| 469 NOTIMPLEMENTED(); | |
| 470 NotifyInitializationComplete(false); | |
| 471 | |
| 472 #endif // !defined(ENABLE_MOJO_MEDIA_IN_GPU_PROCESS) | |
| 473 } | |
| 474 | |
| 475 void AndroidVideoDecodeAccelerator::DoIOTask(bool start_timer) { | |
| 476 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 477 TRACE_EVENT0("media", "AVDA::DoIOTask"); | |
| 478 if (state_ == ERROR || state_ == WAITING_FOR_CODEC) { | |
| 479 return; | |
| 480 } | |
| 481 | |
| 482 bool did_work = QueueInput(); | |
| 483 while (DequeueOutput()) | |
| 484 did_work = true; | |
| 485 | |
| 486 ManageTimer(did_work || start_timer); | |
| 487 } | |
| 488 | |
| 489 bool AndroidVideoDecodeAccelerator::QueueInput() { | |
| 490 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 491 TRACE_EVENT0("media", "AVDA::QueueInput"); | |
| 492 base::AutoReset<bool> auto_reset(&defer_errors_, true); | |
| 493 if (bitstreams_notified_in_advance_.size() > kMaxBitstreamsNotifiedInAdvance) | |
| 494 return false; | |
| 495 if (pending_bitstream_buffers_.empty()) | |
| 496 return false; | |
| 497 if (state_ == WAITING_FOR_KEY) | |
| 498 return false; | |
| 499 | |
| 500 int input_buf_index = pending_input_buf_index_; | |
| 501 | |
| 502 // Do not dequeue a new input buffer if we failed with MEDIA_CODEC_NO_KEY. | |
| 503 // That status does not return this buffer back to the pool of | |
| 504 // available input buffers. We have to reuse it in QueueSecureInputBuffer(). | |
| 505 if (input_buf_index == -1) { | |
| 506 media::MediaCodecStatus status = | |
| 507 media_codec_->DequeueInputBuffer(NoWaitTimeOut(), &input_buf_index); | |
| 508 switch (status) { | |
| 509 case media::MEDIA_CODEC_DEQUEUE_INPUT_AGAIN_LATER: | |
| 510 return false; | |
| 511 case media::MEDIA_CODEC_ERROR: | |
| 512 POST_ERROR(PLATFORM_FAILURE, "Failed to DequeueInputBuffer"); | |
| 513 return false; | |
| 514 case media::MEDIA_CODEC_OK: | |
| 515 break; | |
| 516 default: | |
| 517 NOTREACHED() << "Unknown DequeueInputBuffer status " << status; | |
| 518 return false; | |
| 519 } | |
| 520 } | |
| 521 | |
| 522 DCHECK_NE(input_buf_index, -1); | |
| 523 | |
| 524 media::BitstreamBuffer bitstream_buffer = pending_bitstream_buffers_.front(); | |
| 525 | |
| 526 if (bitstream_buffer.id() == -1) { | |
| 527 pending_bitstream_buffers_.pop(); | |
| 528 TRACE_COUNTER1("media", "AVDA::PendingBitstreamBufferCount", | |
| 529 pending_bitstream_buffers_.size()); | |
| 530 | |
| 531 DCHECK_NE(state_, ERROR); | |
| 532 state_ = WAITING_FOR_EOS; | |
| 533 media_codec_->QueueEOS(input_buf_index); | |
| 534 return true; | |
| 535 } | |
| 536 | |
| 537 std::unique_ptr<SharedMemoryRegion> shm; | |
| 538 | |
| 539 if (pending_input_buf_index_ == -1) { | |
| 540 // When |pending_input_buf_index_| is not -1, the buffer is already dequeued | |
| 541 // from MediaCodec, filled with data and bitstream_buffer.handle() is | |
| 542 // closed. | |
| 543 shm.reset(new SharedMemoryRegion(bitstream_buffer, true)); | |
| 544 | |
| 545 if (!shm->Map()) { | |
| 546 POST_ERROR(UNREADABLE_INPUT, "Failed to SharedMemoryRegion::Map()"); | |
| 547 return false; | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 const base::TimeDelta presentation_timestamp = | |
| 552 bitstream_buffer.presentation_timestamp(); | |
| 553 DCHECK(presentation_timestamp != media::kNoTimestamp()) | |
| 554 << "Bitstream buffers must have valid presentation timestamps"; | |
| 555 | |
| 556 // There may already be a bitstream buffer with this timestamp, e.g., VP9 alt | |
| 557 // ref frames, but it's OK to overwrite it because we only expect a single | |
| 558 // output frame to have that timestamp. AVDA clients only use the bitstream | |
| 559 // buffer id in the returned Pictures to map a bitstream buffer back to a | |
| 560 // timestamp on their side, so either one of the bitstream buffer ids will | |
| 561 // result in them finding the right timestamp. | |
| 562 bitstream_buffers_in_decoder_[presentation_timestamp] = bitstream_buffer.id(); | |
| 563 | |
| 564 // Notice that |memory| will be null if we repeatedly enqueue the same buffer, | |
| 565 // this happens after MEDIA_CODEC_NO_KEY. | |
| 566 const uint8_t* memory = | |
| 567 shm ? static_cast<const uint8_t*>(shm->memory()) : nullptr; | |
| 568 const std::string& key_id = bitstream_buffer.key_id(); | |
| 569 const std::string& iv = bitstream_buffer.iv(); | |
| 570 const std::vector<media::SubsampleEntry>& subsamples = | |
| 571 bitstream_buffer.subsamples(); | |
| 572 | |
| 573 media::MediaCodecStatus status; | |
| 574 if (key_id.empty() || iv.empty()) { | |
| 575 status = media_codec_->QueueInputBuffer(input_buf_index, memory, | |
| 576 bitstream_buffer.size(), | |
| 577 presentation_timestamp); | |
| 578 } else { | |
| 579 status = media_codec_->QueueSecureInputBuffer( | |
| 580 input_buf_index, memory, bitstream_buffer.size(), key_id, iv, | |
| 581 subsamples, presentation_timestamp); | |
| 582 } | |
| 583 | |
| 584 DVLOG(2) << __FUNCTION__ | |
| 585 << ": Queue(Secure)InputBuffer: pts:" << presentation_timestamp | |
| 586 << " status:" << status; | |
| 587 | |
| 588 if (status == media::MEDIA_CODEC_NO_KEY) { | |
| 589 // Keep trying to enqueue the same input buffer. | |
| 590 // The buffer is owned by us (not the MediaCodec) and is filled with data. | |
| 591 DVLOG(1) << "QueueSecureInputBuffer failed: NO_KEY"; | |
| 592 pending_input_buf_index_ = input_buf_index; | |
| 593 state_ = WAITING_FOR_KEY; | |
| 594 return false; | |
| 595 } | |
| 596 | |
| 597 pending_input_buf_index_ = -1; | |
| 598 pending_bitstream_buffers_.pop(); | |
| 599 TRACE_COUNTER1("media", "AVDA::PendingBitstreamBufferCount", | |
| 600 pending_bitstream_buffers_.size()); | |
| 601 // We should call NotifyEndOfBitstreamBuffer(), when no more decoded output | |
| 602 // will be returned from the bitstream buffer. However, MediaCodec API is | |
| 603 // not enough to guarantee it. | |
| 604 // So, here, we calls NotifyEndOfBitstreamBuffer() in advance in order to | |
| 605 // keep getting more bitstreams from the client, and throttle them by using | |
| 606 // |bitstreams_notified_in_advance_|. | |
| 607 // TODO(dwkang): check if there is a way to remove this workaround. | |
| 608 base::MessageLoop::current()->PostTask( | |
| 609 FROM_HERE, | |
| 610 base::Bind(&AndroidVideoDecodeAccelerator::NotifyEndOfBitstreamBuffer, | |
| 611 weak_this_factory_.GetWeakPtr(), bitstream_buffer.id())); | |
| 612 bitstreams_notified_in_advance_.push_back(bitstream_buffer.id()); | |
| 613 | |
| 614 if (status != media::MEDIA_CODEC_OK) { | |
| 615 POST_ERROR(PLATFORM_FAILURE, "Failed to QueueInputBuffer: " << status); | |
| 616 return false; | |
| 617 } | |
| 618 | |
| 619 return true; | |
| 620 } | |
| 621 | |
| 622 bool AndroidVideoDecodeAccelerator::DequeueOutput() { | |
| 623 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 624 TRACE_EVENT0("media", "AVDA::DequeueOutput"); | |
| 625 base::AutoReset<bool> auto_reset(&defer_errors_, true); | |
| 626 if (picturebuffers_requested_ && output_picture_buffers_.empty()) | |
| 627 return false; | |
| 628 | |
| 629 if (!output_picture_buffers_.empty() && free_picture_ids_.empty()) { | |
| 630 // Don't have any picture buffer to send. Need to wait more. | |
| 631 return false; | |
| 632 } | |
| 633 | |
| 634 bool eos = false; | |
| 635 base::TimeDelta presentation_timestamp; | |
| 636 int32_t buf_index = 0; | |
| 637 do { | |
| 638 size_t offset = 0; | |
| 639 size_t size = 0; | |
| 640 | |
| 641 TRACE_EVENT_BEGIN0("media", "AVDA::DequeueOutput"); | |
| 642 media::MediaCodecStatus status = media_codec_->DequeueOutputBuffer( | |
| 643 NoWaitTimeOut(), &buf_index, &offset, &size, &presentation_timestamp, | |
| 644 &eos, NULL); | |
| 645 TRACE_EVENT_END2("media", "AVDA::DequeueOutput", "status", status, | |
| 646 "presentation_timestamp (ms)", | |
| 647 presentation_timestamp.InMilliseconds()); | |
| 648 | |
| 649 switch (status) { | |
| 650 case media::MEDIA_CODEC_ERROR: | |
| 651 POST_ERROR(PLATFORM_FAILURE, "DequeueOutputBuffer failed."); | |
| 652 return false; | |
| 653 | |
| 654 case media::MEDIA_CODEC_DEQUEUE_OUTPUT_AGAIN_LATER: | |
| 655 return false; | |
| 656 | |
| 657 case media::MEDIA_CODEC_OUTPUT_FORMAT_CHANGED: { | |
| 658 if (media_codec_->GetOutputSize(&size_) != media::MEDIA_CODEC_OK) { | |
| 659 POST_ERROR(PLATFORM_FAILURE, "GetOutputSize failed."); | |
| 660 return false; | |
| 661 } | |
| 662 DVLOG(3) << __FUNCTION__ | |
| 663 << " OUTPUT_FORMAT_CHANGED, new size: " << size_.ToString(); | |
| 664 | |
| 665 // Don't request picture buffers if we already have some. This avoids | |
| 666 // having to dismiss the existing buffers which may actively reference | |
| 667 // decoded images. Breaking their connection to the decoded image will | |
| 668 // cause rendering of black frames. Instead, we let the existing | |
| 669 // PictureBuffers live on and we simply update their size the next time | |
| 670 // they're attachted to an image of the new resolution. See the | |
| 671 // size update in |SendDecodedFrameToClient| and https://crbug/587994. | |
| 672 if (output_picture_buffers_.empty() && !picturebuffers_requested_) { | |
| 673 picturebuffers_requested_ = true; | |
| 674 base::MessageLoop::current()->PostTask( | |
| 675 FROM_HERE, | |
| 676 base::Bind(&AndroidVideoDecodeAccelerator::RequestPictureBuffers, | |
| 677 weak_this_factory_.GetWeakPtr())); | |
| 678 return false; | |
| 679 } | |
| 680 | |
| 681 return true; | |
| 682 } | |
| 683 | |
| 684 case media::MEDIA_CODEC_OUTPUT_BUFFERS_CHANGED: | |
| 685 break; | |
| 686 | |
| 687 case media::MEDIA_CODEC_OK: | |
| 688 DCHECK_GE(buf_index, 0); | |
| 689 DVLOG(3) << __FUNCTION__ << ": pts:" << presentation_timestamp | |
| 690 << " buf_index:" << buf_index << " offset:" << offset | |
| 691 << " size:" << size << " eos:" << eos; | |
| 692 break; | |
| 693 | |
| 694 default: | |
| 695 NOTREACHED(); | |
| 696 break; | |
| 697 } | |
| 698 } while (buf_index < 0); | |
| 699 | |
| 700 if (eos) { | |
| 701 DVLOG(3) << __FUNCTION__ << ": Resetting codec state after EOS"; | |
| 702 | |
| 703 // If we were waiting for an EOS, clear the state and reset the MediaCodec | |
| 704 // as normal. Otherwise, enter the ERROR state which will force destruction | |
| 705 // of MediaCodec during ResetCodecState(). | |
| 706 // | |
| 707 // Some Android platforms seem to send an EOS buffer even when we're not | |
| 708 // expecting it. In this case, destroy and reset the codec but don't notify | |
| 709 // flush done since it violates the state machine. http://crbug.com/585959. | |
| 710 const bool was_waiting_for_eos = state_ == WAITING_FOR_EOS; | |
| 711 state_ = was_waiting_for_eos ? NO_ERROR : ERROR; | |
| 712 | |
| 713 ResetCodecState(); | |
| 714 // |media_codec_| might still be null. | |
| 715 if (was_waiting_for_eos) { | |
| 716 base::MessageLoop::current()->PostTask( | |
| 717 FROM_HERE, base::Bind(&AndroidVideoDecodeAccelerator::NotifyFlushDone, | |
| 718 weak_this_factory_.GetWeakPtr())); | |
| 719 } | |
| 720 return false; | |
| 721 } | |
| 722 | |
| 723 if (!picturebuffers_requested_) { | |
| 724 // If, somehow, we get a decoded frame back before a FORMAT_CHANGED | |
| 725 // message, then we might not have any picture buffers to use. This | |
| 726 // isn't supposed to happen (see EncodeDecodeTest.java#617). | |
| 727 // Log a metric to see how common this is. | |
| 728 RecordFormatChangedMetric(FormatChangedValue::MissingFormatChanged); | |
| 729 media_codec_->ReleaseOutputBuffer(buf_index, false); | |
| 730 POST_ERROR(PLATFORM_FAILURE, "Dequeued buffers before FORMAT_CHANGED."); | |
| 731 return false; | |
| 732 } | |
| 733 | |
| 734 // Get the bitstream buffer id from the timestamp. | |
| 735 auto it = bitstream_buffers_in_decoder_.find(presentation_timestamp); | |
| 736 | |
| 737 if (it != bitstream_buffers_in_decoder_.end()) { | |
| 738 const int32_t bitstream_buffer_id = it->second; | |
| 739 bitstream_buffers_in_decoder_.erase(bitstream_buffers_in_decoder_.begin(), | |
| 740 ++it); | |
| 741 SendDecodedFrameToClient(buf_index, bitstream_buffer_id); | |
| 742 | |
| 743 // Removes ids former or equal than the id from decoder. Note that | |
| 744 // |bitstreams_notified_in_advance_| does not mean bitstream ids in decoder | |
| 745 // because of frame reordering issue. We just maintain this roughly and use | |
| 746 // it for throttling. | |
| 747 for (auto bitstream_it = bitstreams_notified_in_advance_.begin(); | |
| 748 bitstream_it != bitstreams_notified_in_advance_.end(); | |
| 749 ++bitstream_it) { | |
| 750 if (*bitstream_it == bitstream_buffer_id) { | |
| 751 bitstreams_notified_in_advance_.erase( | |
| 752 bitstreams_notified_in_advance_.begin(), ++bitstream_it); | |
| 753 break; | |
| 754 } | |
| 755 } | |
| 756 } else { | |
| 757 // Normally we assume that the decoder makes at most one output frame for | |
| 758 // each distinct input timestamp. However MediaCodecBridge uses timestamp | |
| 759 // correction and provides a non-decreasing timestamp sequence, which might | |
| 760 // result in timestamp duplicates. Discard the frame if we cannot get the | |
| 761 // corresponding buffer id. | |
| 762 DVLOG(3) << __FUNCTION__ << ": Releasing buffer with unexpected PTS: " | |
| 763 << presentation_timestamp; | |
| 764 media_codec_->ReleaseOutputBuffer(buf_index, false); | |
| 765 } | |
| 766 | |
| 767 // We got a decoded frame, so try for another. | |
| 768 return true; | |
| 769 } | |
| 770 | |
| 771 void AndroidVideoDecodeAccelerator::SendDecodedFrameToClient( | |
| 772 int32_t codec_buffer_index, | |
| 773 int32_t bitstream_id) { | |
| 774 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 775 DCHECK_NE(bitstream_id, -1); | |
| 776 DCHECK(!free_picture_ids_.empty()); | |
| 777 TRACE_EVENT0("media", "AVDA::SendDecodedFrameToClient"); | |
| 778 | |
| 779 if (!make_context_current_cb_.Run()) { | |
| 780 POST_ERROR(PLATFORM_FAILURE, "Failed to make the GL context current."); | |
| 781 return; | |
| 782 } | |
| 783 | |
| 784 int32_t picture_buffer_id = free_picture_ids_.front(); | |
| 785 free_picture_ids_.pop(); | |
| 786 TRACE_COUNTER1("media", "AVDA::FreePictureIds", free_picture_ids_.size()); | |
| 787 | |
| 788 const auto& i = output_picture_buffers_.find(picture_buffer_id); | |
| 789 if (i == output_picture_buffers_.end()) { | |
| 790 POST_ERROR(PLATFORM_FAILURE, | |
| 791 "Can't find PictureBuffer id: " << picture_buffer_id); | |
| 792 return; | |
| 793 } | |
| 794 | |
| 795 bool size_changed = false; | |
| 796 if (i->second.size() != size_) { | |
| 797 // Size may have changed due to resolution change since the last time this | |
| 798 // PictureBuffer was used. | |
| 799 strategy_->UpdatePictureBufferSize(&i->second, size_); | |
| 800 size_changed = true; | |
| 801 } | |
| 802 | |
| 803 // Connect the PictureBuffer to the decoded frame, via whatever | |
| 804 // mechanism the strategy likes. | |
| 805 strategy_->UseCodecBufferForPictureBuffer(codec_buffer_index, i->second); | |
| 806 | |
| 807 const bool allow_overlay = strategy_->ArePicturesOverlayable(); | |
| 808 | |
| 809 media::Picture picture(picture_buffer_id, bitstream_id, gfx::Rect(size_), | |
| 810 allow_overlay); | |
| 811 picture.set_size_changed(size_changed); | |
| 812 | |
| 813 base::MessageLoop::current()->PostTask( | |
| 814 FROM_HERE, base::Bind(&AndroidVideoDecodeAccelerator::NotifyPictureReady, | |
| 815 weak_this_factory_.GetWeakPtr(), picture)); | |
| 816 } | |
| 817 | |
| 818 void AndroidVideoDecodeAccelerator::Decode( | |
| 819 const media::BitstreamBuffer& bitstream_buffer) { | |
| 820 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 821 | |
| 822 if (bitstream_buffer.id() >= 0 && bitstream_buffer.size() > 0) { | |
| 823 DecodeBuffer(bitstream_buffer); | |
| 824 return; | |
| 825 } | |
| 826 | |
| 827 if (base::SharedMemory::IsHandleValid(bitstream_buffer.handle())) | |
| 828 base::SharedMemory::CloseHandle(bitstream_buffer.handle()); | |
| 829 | |
| 830 if (bitstream_buffer.id() < 0) { | |
| 831 POST_ERROR(INVALID_ARGUMENT, | |
| 832 "Invalid bistream_buffer, id: " << bitstream_buffer.id()); | |
| 833 } else { | |
| 834 base::MessageLoop::current()->PostTask( | |
| 835 FROM_HERE, | |
| 836 base::Bind(&AndroidVideoDecodeAccelerator::NotifyEndOfBitstreamBuffer, | |
| 837 weak_this_factory_.GetWeakPtr(), bitstream_buffer.id())); | |
| 838 } | |
| 839 } | |
| 840 | |
| 841 void AndroidVideoDecodeAccelerator::DecodeBuffer( | |
| 842 const media::BitstreamBuffer& bitstream_buffer) { | |
| 843 pending_bitstream_buffers_.push(bitstream_buffer); | |
| 844 TRACE_COUNTER1("media", "AVDA::PendingBitstreamBufferCount", | |
| 845 pending_bitstream_buffers_.size()); | |
| 846 | |
| 847 DoIOTask(true); | |
| 848 } | |
| 849 | |
| 850 void AndroidVideoDecodeAccelerator::RequestPictureBuffers() { | |
| 851 client_->ProvidePictureBuffers(kNumPictureBuffers, 1, | |
| 852 strategy_->GetPictureBufferSize(), | |
| 853 strategy_->GetTextureTarget()); | |
| 854 } | |
| 855 | |
| 856 void AndroidVideoDecodeAccelerator::AssignPictureBuffers( | |
| 857 const std::vector<media::PictureBuffer>& buffers) { | |
| 858 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 859 DCHECK(output_picture_buffers_.empty()); | |
| 860 DCHECK(free_picture_ids_.empty()); | |
| 861 | |
| 862 if (buffers.size() < kNumPictureBuffers) { | |
| 863 POST_ERROR(INVALID_ARGUMENT, "Not enough picture buffers assigned."); | |
| 864 return; | |
| 865 } | |
| 866 | |
| 867 const bool have_context = make_context_current_cb_.Run(); | |
| 868 LOG_IF(WARNING, !have_context) | |
| 869 << "Failed to make GL context current for Assign, continuing."; | |
| 870 | |
| 871 for (size_t i = 0; i < buffers.size(); ++i) { | |
| 872 if (buffers[i].size() != strategy_->GetPictureBufferSize()) { | |
| 873 POST_ERROR(INVALID_ARGUMENT, | |
| 874 "Invalid picture buffer size assigned. Wanted " | |
| 875 << size_.ToString() << ", but got " | |
| 876 << buffers[i].size().ToString()); | |
| 877 return; | |
| 878 } | |
| 879 int32_t id = buffers[i].id(); | |
| 880 output_picture_buffers_.insert(std::make_pair(id, buffers[i])); | |
| 881 free_picture_ids_.push(id); | |
| 882 | |
| 883 strategy_->AssignOnePictureBuffer(buffers[i], have_context); | |
| 884 } | |
| 885 TRACE_COUNTER1("media", "AVDA::FreePictureIds", free_picture_ids_.size()); | |
| 886 DoIOTask(true); | |
| 887 } | |
| 888 | |
| 889 void AndroidVideoDecodeAccelerator::ReusePictureBuffer( | |
| 890 int32_t picture_buffer_id) { | |
| 891 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 892 | |
| 893 free_picture_ids_.push(picture_buffer_id); | |
| 894 TRACE_COUNTER1("media", "AVDA::FreePictureIds", free_picture_ids_.size()); | |
| 895 | |
| 896 OutputBufferMap::const_iterator i = | |
| 897 output_picture_buffers_.find(picture_buffer_id); | |
| 898 if (i == output_picture_buffers_.end()) { | |
| 899 POST_ERROR(PLATFORM_FAILURE, "Can't find PictureBuffer id " | |
| 900 << picture_buffer_id); | |
| 901 return; | |
| 902 } | |
| 903 | |
| 904 strategy_->ReuseOnePictureBuffer(i->second); | |
| 905 DoIOTask(true); | |
| 906 } | |
| 907 | |
| 908 void AndroidVideoDecodeAccelerator::Flush() { | |
| 909 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 910 | |
| 911 DecodeBuffer(media::BitstreamBuffer(-1, base::SharedMemoryHandle(), 0)); | |
| 912 } | |
| 913 | |
| 914 void AndroidVideoDecodeAccelerator::ConfigureMediaCodecAsynchronously() { | |
| 915 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 916 | |
| 917 // It's probably okay just to return here, since the codec will be configured | |
| 918 // asynchronously. It's unclear that any state for the new request could | |
| 919 // be different, unless somebody modifies |codec_config_| while we're already | |
| 920 // waiting for a codec. One shouldn't do that for thread safety. | |
| 921 DCHECK_NE(state_, WAITING_FOR_CODEC); | |
| 922 | |
| 923 state_ = WAITING_FOR_CODEC; | |
| 924 | |
| 925 // Tell the strategy that we're changing codecs. The codec itself could be | |
| 926 // used normally, since we don't replace it until we're back on the main | |
| 927 // thread. However, if we're using an output surface, then the incoming codec | |
| 928 // might access that surface while the main thread is drawing. Telling the | |
| 929 // strategy to forget the codec avoids this. | |
| 930 if (media_codec_) { | |
| 931 media_codec_.reset(); | |
| 932 strategy_->CodecChanged(nullptr, output_picture_buffers_); | |
| 933 } | |
| 934 | |
| 935 base::PostTaskAndReplyWithResult( | |
| 936 g_avda_timer.Pointer()->ConstructionTaskRunner().get(), FROM_HERE, | |
| 937 base::Bind(&AndroidVideoDecodeAccelerator::ConfigureMediaCodecOnAnyThread, | |
| 938 codec_config_), | |
| 939 base::Bind(&AndroidVideoDecodeAccelerator::OnCodecConfigured, | |
| 940 weak_this_factory_.GetWeakPtr())); | |
| 941 } | |
| 942 | |
| 943 bool AndroidVideoDecodeAccelerator::ConfigureMediaCodecSynchronously() { | |
| 944 state_ = WAITING_FOR_CODEC; | |
| 945 std::unique_ptr<media::VideoCodecBridge> media_codec = | |
| 946 ConfigureMediaCodecOnAnyThread(codec_config_); | |
| 947 OnCodecConfigured(std::move(media_codec)); | |
| 948 return !!media_codec_; | |
| 949 } | |
| 950 | |
| 951 std::unique_ptr<media::VideoCodecBridge> | |
| 952 AndroidVideoDecodeAccelerator::ConfigureMediaCodecOnAnyThread( | |
| 953 scoped_refptr<CodecConfig> codec_config) { | |
| 954 TRACE_EVENT0("media", "AVDA::ConfigureMediaCodec"); | |
| 955 | |
| 956 jobject media_crypto = codec_config->media_crypto_ | |
| 957 ? codec_config->media_crypto_->obj() | |
| 958 : nullptr; | |
| 959 | |
| 960 // |needs_protected_surface_| implies encrypted stream. | |
| 961 DCHECK(!codec_config->needs_protected_surface_ || media_crypto); | |
| 962 | |
| 963 return std::unique_ptr<media::VideoCodecBridge>( | |
| 964 media::VideoCodecBridge::CreateDecoder( | |
| 965 codec_config->codec_, codec_config->needs_protected_surface_, | |
| 966 codec_config->initial_expected_coded_size_, | |
| 967 codec_config->surface_.j_surface().obj(), media_crypto, true)); | |
| 968 } | |
| 969 | |
| 970 void AndroidVideoDecodeAccelerator::OnCodecConfigured( | |
| 971 std::unique_ptr<media::VideoCodecBridge> media_codec) { | |
| 972 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 973 DCHECK_EQ(state_, WAITING_FOR_CODEC); | |
| 974 | |
| 975 media_codec_ = std::move(media_codec); | |
| 976 | |
| 977 // Record one instance of the codec being initialized. | |
| 978 RecordFormatChangedMetric(FormatChangedValue::CodecInitialized); | |
| 979 | |
| 980 strategy_->CodecChanged(media_codec_.get(), output_picture_buffers_); | |
| 981 | |
| 982 // If we are supposed to notify that initialization is complete, then do so | |
| 983 // now. Otherwise, this is a reconfiguration. | |
| 984 if (deferred_initialization_pending_) { | |
| 985 NotifyInitializationComplete(!!media_codec_); | |
| 986 deferred_initialization_pending_ = false; | |
| 987 } | |
| 988 | |
| 989 if (!media_codec_) { | |
| 990 POST_ERROR(PLATFORM_FAILURE, "Failed to create MediaCodec."); | |
| 991 return; | |
| 992 } | |
| 993 | |
| 994 state_ = NO_ERROR; | |
| 995 | |
| 996 ManageTimer(true); | |
| 997 } | |
| 998 | |
| 999 void AndroidVideoDecodeAccelerator::ResetCodecState() { | |
| 1000 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 1001 | |
| 1002 // If there is already a reset in flight, then that counts. This can really | |
| 1003 // only happen if somebody calls Reset. | |
| 1004 if (state_ == WAITING_FOR_CODEC) | |
| 1005 return; | |
| 1006 | |
| 1007 bitstream_buffers_in_decoder_.clear(); | |
| 1008 | |
| 1009 if (pending_input_buf_index_ != -1) { | |
| 1010 // The data for that index exists in the input buffer, but corresponding | |
| 1011 // shm block been deleted. Check that it is safe to flush the coec, i.e. | |
| 1012 // |pending_bitstream_buffers_| is empty. | |
| 1013 // TODO(timav): keep shm block for that buffer and remove this restriction. | |
| 1014 DCHECK(pending_bitstream_buffers_.empty()); | |
| 1015 pending_input_buf_index_ = -1; | |
| 1016 } | |
| 1017 | |
| 1018 if (state_ == WAITING_FOR_KEY) | |
| 1019 state_ = NO_ERROR; | |
| 1020 | |
| 1021 // We might increment error_sequence_token here to cancel any delayed errors, | |
| 1022 // but right now it's unclear that it's safe to do so. If we are in an error | |
| 1023 // state because of a codec error, then it would be okay. Otherwise, it's | |
| 1024 // less obvious that we are exiting the error state. Since deferred errors | |
| 1025 // are only intended for fullscreen transitions right now, we take the more | |
| 1026 // conservative approach and let the errors post. | |
| 1027 // TODO(liberato): revisit this once we sort out the error state a bit more. | |
| 1028 | |
| 1029 // When codec is not in error state we can quickly reset (internally calls | |
| 1030 // flush()) for JB-MR2 and beyond. Prior to JB-MR2, flush() had several bugs | |
| 1031 // (b/8125974, b/8347958) so we must delete the MediaCodec and create a new | |
| 1032 // one. The full reconfigure is much slower and may cause visible freezing if | |
| 1033 // done mid-stream. | |
| 1034 if (state_ == NO_ERROR && | |
| 1035 base::android::BuildInfo::GetInstance()->sdk_int() >= 18) { | |
| 1036 DVLOG(3) << __FUNCTION__ << " Doing fast MediaCodec reset (flush)."; | |
| 1037 media_codec_->Reset(); | |
| 1038 // Since we just flushed all the output buffers, make sure that nothing is | |
| 1039 // using them. | |
| 1040 strategy_->CodecChanged(media_codec_.get(), output_picture_buffers_); | |
| 1041 } else { | |
| 1042 DVLOG(3) << __FUNCTION__ | |
| 1043 << " Deleting the MediaCodec and creating a new one."; | |
| 1044 g_avda_timer.Pointer()->StopTimer(this); | |
| 1045 // Changing the codec will also notify the strategy to forget about any | |
| 1046 // output buffers it has currently. | |
| 1047 state_ = NO_ERROR; | |
| 1048 ConfigureMediaCodecAsynchronously(); | |
| 1049 } | |
| 1050 } | |
| 1051 | |
| 1052 void AndroidVideoDecodeAccelerator::Reset() { | |
| 1053 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 1054 TRACE_EVENT0("media", "AVDA::Reset"); | |
| 1055 | |
| 1056 while (!pending_bitstream_buffers_.empty()) { | |
| 1057 int32_t bitstream_buffer_id = pending_bitstream_buffers_.front().id(); | |
| 1058 pending_bitstream_buffers_.pop(); | |
| 1059 | |
| 1060 if (bitstream_buffer_id != -1) { | |
| 1061 base::MessageLoop::current()->PostTask( | |
| 1062 FROM_HERE, | |
| 1063 base::Bind(&AndroidVideoDecodeAccelerator::NotifyEndOfBitstreamBuffer, | |
| 1064 weak_this_factory_.GetWeakPtr(), bitstream_buffer_id)); | |
| 1065 } | |
| 1066 } | |
| 1067 TRACE_COUNTER1("media", "AVDA::PendingBitstreamBufferCount", 0); | |
| 1068 bitstreams_notified_in_advance_.clear(); | |
| 1069 | |
| 1070 // Any error that is waiting to post can be ignored. | |
| 1071 error_sequence_token_++; | |
| 1072 | |
| 1073 ResetCodecState(); | |
| 1074 | |
| 1075 // Note that |media_codec_| might not yet be ready, but we can still post | |
| 1076 // this anyway. | |
| 1077 base::MessageLoop::current()->PostTask( | |
| 1078 FROM_HERE, base::Bind(&AndroidVideoDecodeAccelerator::NotifyResetDone, | |
| 1079 weak_this_factory_.GetWeakPtr())); | |
| 1080 } | |
| 1081 | |
| 1082 void AndroidVideoDecodeAccelerator::Destroy() { | |
| 1083 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 1084 | |
| 1085 bool have_context = make_context_current_cb_.Run(); | |
| 1086 if (!have_context) | |
| 1087 LOG(WARNING) << "Failed make GL context current for Destroy, continuing."; | |
| 1088 | |
| 1089 if (strategy_) | |
| 1090 strategy_->Cleanup(have_context, output_picture_buffers_); | |
| 1091 | |
| 1092 // If we have an OnFrameAvailable handler, tell it that we're going away. | |
| 1093 if (on_frame_available_handler_) { | |
| 1094 on_frame_available_handler_->ClearOwner(); | |
| 1095 on_frame_available_handler_ = nullptr; | |
| 1096 } | |
| 1097 | |
| 1098 // Note that async codec construction might still be in progress. In that | |
| 1099 // case, the codec will be deleted when it completes once we invalidate all | |
| 1100 // our weak refs. | |
| 1101 weak_this_factory_.InvalidateWeakPtrs(); | |
| 1102 if (media_codec_) { | |
| 1103 g_avda_timer.Pointer()->StopTimer(this); | |
| 1104 media_codec_.reset(); | |
| 1105 } | |
| 1106 delete this; | |
| 1107 } | |
| 1108 | |
| 1109 bool AndroidVideoDecodeAccelerator::TryToSetupDecodeOnSeparateThread( | |
| 1110 const base::WeakPtr<Client>& decode_client, | |
| 1111 const scoped_refptr<base::SingleThreadTaskRunner>& decode_task_runner) { | |
| 1112 return false; | |
| 1113 } | |
| 1114 | |
| 1115 const gfx::Size& AndroidVideoDecodeAccelerator::GetSize() const { | |
| 1116 return size_; | |
| 1117 } | |
| 1118 | |
| 1119 const base::ThreadChecker& AndroidVideoDecodeAccelerator::ThreadChecker() | |
| 1120 const { | |
| 1121 return thread_checker_; | |
| 1122 } | |
| 1123 | |
| 1124 base::WeakPtr<gpu::gles2::GLES2Decoder> | |
| 1125 AndroidVideoDecodeAccelerator::GetGlDecoder() const { | |
| 1126 return get_gles2_decoder_cb_.Run(); | |
| 1127 } | |
| 1128 | |
| 1129 gpu::gles2::TextureRef* AndroidVideoDecodeAccelerator::GetTextureForPicture( | |
| 1130 const media::PictureBuffer& picture_buffer) { | |
| 1131 auto gles_decoder = GetGlDecoder(); | |
| 1132 RETURN_ON_FAILURE(this, gles_decoder, "Failed to get GL decoder", | |
| 1133 ILLEGAL_STATE, nullptr); | |
| 1134 RETURN_ON_FAILURE(this, gles_decoder->GetContextGroup(), | |
| 1135 "Null gles_decoder->GetContextGroup()", ILLEGAL_STATE, | |
| 1136 nullptr); | |
| 1137 gpu::gles2::TextureManager* texture_manager = | |
| 1138 gles_decoder->GetContextGroup()->texture_manager(); | |
| 1139 RETURN_ON_FAILURE(this, texture_manager, "Null texture_manager", | |
| 1140 ILLEGAL_STATE, nullptr); | |
| 1141 | |
| 1142 DCHECK_LE(1u, picture_buffer.internal_texture_ids().size()); | |
| 1143 gpu::gles2::TextureRef* texture_ref = | |
| 1144 texture_manager->GetTexture(picture_buffer.internal_texture_ids()[0]); | |
| 1145 RETURN_ON_FAILURE(this, texture_manager, "Null texture_ref", ILLEGAL_STATE, | |
| 1146 nullptr); | |
| 1147 | |
| 1148 return texture_ref; | |
| 1149 } | |
| 1150 | |
| 1151 void AndroidVideoDecodeAccelerator::OnFrameAvailable() { | |
| 1152 // Remember: this may be on any thread. | |
| 1153 DCHECK(strategy_); | |
| 1154 strategy_->OnFrameAvailable(); | |
| 1155 } | |
| 1156 | |
| 1157 void AndroidVideoDecodeAccelerator::PostError( | |
| 1158 const ::tracked_objects::Location& from_here, | |
| 1159 media::VideoDecodeAccelerator::Error error) { | |
| 1160 base::MessageLoop::current()->PostDelayedTask( | |
| 1161 from_here, | |
| 1162 base::Bind(&AndroidVideoDecodeAccelerator::NotifyError, | |
| 1163 weak_this_factory_.GetWeakPtr(), error, error_sequence_token_), | |
| 1164 (defer_errors_ ? ErrorPostingDelay() : base::TimeDelta())); | |
| 1165 state_ = ERROR; | |
| 1166 } | |
| 1167 | |
| 1168 void AndroidVideoDecodeAccelerator::OnMediaCryptoReady( | |
| 1169 media::MediaDrmBridgeCdmContext::JavaObjectPtr media_crypto, | |
| 1170 bool needs_protected_surface) { | |
| 1171 DVLOG(1) << __FUNCTION__; | |
| 1172 | |
| 1173 if (!media_crypto) { | |
| 1174 LOG(ERROR) << "MediaCrypto is not available, can't play encrypted stream."; | |
| 1175 cdm_for_reference_holding_only_ = nullptr; | |
| 1176 media_drm_bridge_cdm_context_ = nullptr; | |
| 1177 NotifyInitializationComplete(false); | |
| 1178 return; | |
| 1179 } | |
| 1180 | |
| 1181 DCHECK(!media_crypto->is_null()); | |
| 1182 | |
| 1183 // We assume this is a part of the initialization process, thus MediaCodec | |
| 1184 // is not created yet. | |
| 1185 DCHECK(!media_codec_); | |
| 1186 | |
| 1187 codec_config_->media_crypto_ = std::move(media_crypto); | |
| 1188 codec_config_->needs_protected_surface_ = needs_protected_surface; | |
| 1189 | |
| 1190 // After receiving |media_crypto_| we can configure MediaCodec. | |
| 1191 ConfigureMediaCodecAsynchronously(); | |
| 1192 } | |
| 1193 | |
| 1194 void AndroidVideoDecodeAccelerator::OnKeyAdded() { | |
| 1195 DVLOG(1) << __FUNCTION__; | |
| 1196 | |
| 1197 if (state_ == WAITING_FOR_KEY) | |
| 1198 state_ = NO_ERROR; | |
| 1199 | |
| 1200 DoIOTask(true); | |
| 1201 } | |
| 1202 | |
| 1203 void AndroidVideoDecodeAccelerator::NotifyInitializationComplete(bool success) { | |
| 1204 client_->NotifyInitializationComplete(success); | |
| 1205 } | |
| 1206 | |
| 1207 void AndroidVideoDecodeAccelerator::NotifyPictureReady( | |
| 1208 const media::Picture& picture) { | |
| 1209 client_->PictureReady(picture); | |
| 1210 } | |
| 1211 | |
| 1212 void AndroidVideoDecodeAccelerator::NotifyEndOfBitstreamBuffer( | |
| 1213 int input_buffer_id) { | |
| 1214 client_->NotifyEndOfBitstreamBuffer(input_buffer_id); | |
| 1215 } | |
| 1216 | |
| 1217 void AndroidVideoDecodeAccelerator::NotifyFlushDone() { | |
| 1218 client_->NotifyFlushDone(); | |
| 1219 } | |
| 1220 | |
| 1221 void AndroidVideoDecodeAccelerator::NotifyResetDone() { | |
| 1222 client_->NotifyResetDone(); | |
| 1223 } | |
| 1224 | |
| 1225 void AndroidVideoDecodeAccelerator::NotifyError( | |
| 1226 media::VideoDecodeAccelerator::Error error, | |
| 1227 int token) { | |
| 1228 DVLOG(1) << __FUNCTION__ << ": error: " << error << " token: " << token | |
| 1229 << " current: " << error_sequence_token_; | |
| 1230 if (token != error_sequence_token_) | |
| 1231 return; | |
| 1232 | |
| 1233 client_->NotifyError(error); | |
| 1234 } | |
| 1235 | |
| 1236 void AndroidVideoDecodeAccelerator::ManageTimer(bool did_work) { | |
| 1237 bool should_be_running = true; | |
| 1238 | |
| 1239 base::TimeTicks now = base::TimeTicks::Now(); | |
| 1240 if (!did_work && !most_recent_work_.is_null()) { | |
| 1241 // Make sure that we have done work recently enough, else stop the timer. | |
| 1242 if (now - most_recent_work_ > IdleTimerTimeOut()) { | |
| 1243 most_recent_work_ = base::TimeTicks(); | |
| 1244 should_be_running = false; | |
| 1245 } | |
| 1246 } else { | |
| 1247 most_recent_work_ = now; | |
| 1248 } | |
| 1249 | |
| 1250 if (should_be_running) | |
| 1251 g_avda_timer.Pointer()->StartTimer(this); | |
| 1252 else | |
| 1253 g_avda_timer.Pointer()->StopTimer(this); | |
| 1254 } | |
| 1255 | |
| 1256 // static | |
| 1257 bool AndroidVideoDecodeAccelerator::UseDeferredRenderingStrategy( | |
| 1258 const gpu::GpuPreferences& gpu_preferences) { | |
| 1259 // TODO(liberato, watk): Figure out what we want to do about zero copy for | |
| 1260 // fullscreen external SurfaceView in WebView. http://crbug.com/582170. | |
| 1261 return !gpu_preferences.enable_threaded_texture_mailboxes; | |
| 1262 } | |
| 1263 | |
| 1264 // static | |
| 1265 media::VideoDecodeAccelerator::Capabilities | |
| 1266 AndroidVideoDecodeAccelerator::GetCapabilities( | |
| 1267 const gpu::GpuPreferences& gpu_preferences) { | |
| 1268 Capabilities capabilities; | |
| 1269 SupportedProfiles& profiles = capabilities.supported_profiles; | |
| 1270 | |
| 1271 SupportedProfile profile; | |
| 1272 | |
| 1273 if (media::MediaCodecUtil::IsVp8DecoderAvailable()) { | |
| 1274 profile.profile = media::VP8PROFILE_ANY; | |
| 1275 profile.min_resolution.SetSize(0, 0); | |
| 1276 profile.max_resolution.SetSize(1920, 1088); | |
| 1277 // If we know MediaCodec will just create a software codec, prefer our | |
| 1278 // internal software decoder instead. It's more up to date and secured | |
| 1279 // within the renderer sandbox. However if the content is encrypted, we | |
| 1280 // must use MediaCodec anyways since MediaDrm offers no way to decrypt | |
| 1281 // the buffers and let us use our internal software decoders. | |
| 1282 profile.encrypted_only = media::VideoCodecBridge::IsKnownUnaccelerated( | |
| 1283 media::kCodecVP8, media::MEDIA_CODEC_DECODER); | |
| 1284 profiles.push_back(profile); | |
| 1285 } | |
| 1286 | |
| 1287 if (media::MediaCodecUtil::IsVp9DecoderAvailable()) { | |
| 1288 profile.min_resolution.SetSize(0, 0); | |
| 1289 profile.max_resolution.SetSize(1920, 1088); | |
| 1290 // If we know MediaCodec will just create a software codec, prefer our | |
| 1291 // internal software decoder instead. It's more up to date and secured | |
| 1292 // within the renderer sandbox. However if the content is encrypted, we | |
| 1293 // must use MediaCodec anyways since MediaDrm offers no way to decrypt | |
| 1294 // the buffers and let us use our internal software decoders. | |
| 1295 profile.encrypted_only = media::VideoCodecBridge::IsKnownUnaccelerated( | |
| 1296 media::kCodecVP9, media::MEDIA_CODEC_DECODER); | |
| 1297 profile.profile = media::VP9PROFILE_PROFILE0; | |
| 1298 profiles.push_back(profile); | |
| 1299 profile.profile = media::VP9PROFILE_PROFILE1; | |
| 1300 profiles.push_back(profile); | |
| 1301 profile.profile = media::VP9PROFILE_PROFILE2; | |
| 1302 profiles.push_back(profile); | |
| 1303 profile.profile = media::VP9PROFILE_PROFILE3; | |
| 1304 profiles.push_back(profile); | |
| 1305 } | |
| 1306 | |
| 1307 for (const auto& supported_profile : kSupportedH264Profiles) { | |
| 1308 SupportedProfile profile; | |
| 1309 profile.profile = supported_profile; | |
| 1310 profile.min_resolution.SetSize(0, 0); | |
| 1311 // Advertise support for 4k and let the MediaCodec fail when decoding if it | |
| 1312 // doesn't support the resolution. It's assumed that consumers won't have | |
| 1313 // software fallback for H264 on Android anyway. | |
| 1314 profile.max_resolution.SetSize(3840, 2160); | |
| 1315 profiles.push_back(profile); | |
| 1316 } | |
| 1317 | |
| 1318 if (UseDeferredRenderingStrategy(gpu_preferences)) { | |
| 1319 capabilities.flags = media::VideoDecodeAccelerator::Capabilities:: | |
| 1320 NEEDS_ALL_PICTURE_BUFFERS_TO_DECODE | | |
| 1321 media::VideoDecodeAccelerator::Capabilities:: | |
| 1322 SUPPORTS_EXTERNAL_OUTPUT_SURFACE | | |
| 1323 media::VideoDecodeAccelerator::Capabilities:: | |
| 1324 SUPPORTS_DEFERRED_INITIALIZATION; | |
| 1325 } | |
| 1326 | |
| 1327 return capabilities; | |
| 1328 } | |
| 1329 | |
| 1330 } // 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