1 // Copyright 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 "media/cdm/ppapi/cdm_adapter.h" 6 7 #include "media/base/limits.h" 8 #include "media/cdm/ppapi/cdm_file_io_impl.h" 9 #include "media/cdm/ppapi/cdm_helpers.h" 10 #include "media/cdm/ppapi/cdm_logging.h" 11 #include "media/cdm/ppapi/supported_cdm_versions.h" 12 #include "ppapi/c/ppb_console.h" 13 #include "ppapi/cpp/private/uma_private.h" 14 15 #if defined(CHECK_DOCUMENT_URL) 16 #include "ppapi/cpp/dev/url_util_dev.h" 17 #include "ppapi/cpp/instance_handle.h" 18 #endif // defined(CHECK_DOCUMENT_URL) 19 20 namespace { 21 22 // Constants for UMA reporting of file size (in KB) via HistogramCustomCounts(). 23 // Note that the histogram is log-scaled (rather than linear). 24 const uint32_t kSizeKBMin = 1; 25 const uint32_t kSizeKBMax = 512 * 1024; // 512MB 26 const uint32_t kSizeKBBuckets = 100; 27 28 #if !defined(NDEBUG) 29 #define DLOG_TO_CONSOLE(message) LogToConsole(message); 30 #else 31 #define DLOG_TO_CONSOLE(message) (void)(message); 32 #endif 33 34 bool IsMainThread() { 35 return pp::Module::Get()->core()->IsMainThread(); 36 } 37 38 // Posts a task to run |cb| on the main thread. The task is posted even if the 39 // current thread is the main thread. 40 void PostOnMain(pp::CompletionCallback cb) { 41 pp::Module::Get()->core()->CallOnMainThread(0, cb, PP_OK); 42 } 43 44 // Ensures |cb| is called on the main thread, either because the current thread 45 // is the main thread or by posting it to the main thread. 46 void CallOnMain(pp::CompletionCallback cb) { 47 // TODO(tomfinegan): This is only necessary because PPAPI doesn't allow calls 48 // off the main thread yet. Remove this once the change lands. 49 if (IsMainThread()) 50 cb.Run(PP_OK); 51 else 52 PostOnMain(cb); 53 } 54 55 // Configures a cdm::InputBuffer. |subsamples| must exist as long as 56 // |input_buffer| is in use. 57 void ConfigureInputBuffer( 58 const pp::Buffer_Dev& encrypted_buffer, 59 const PP_EncryptedBlockInfo& encrypted_block_info, 60 std::vector<cdm::SubsampleEntry>* subsamples, 61 cdm::InputBuffer* input_buffer) { 62 PP_DCHECK(subsamples); 63 PP_DCHECK(!encrypted_buffer.is_null()); 64 65 input_buffer->data = static_cast<uint8_t*>(encrypted_buffer.data()); 66 input_buffer->data_size = encrypted_block_info.data_size; 67 PP_DCHECK(encrypted_buffer.size() >= input_buffer->data_size); 68 69 PP_DCHECK(encrypted_block_info.key_id_size <= 70 arraysize(encrypted_block_info.key_id)); 71 input_buffer->key_id_size = encrypted_block_info.key_id_size; 72 input_buffer->key_id = input_buffer->key_id_size > 0 ? 73 encrypted_block_info.key_id : NULL; 74 75 PP_DCHECK(encrypted_block_info.iv_size <= arraysize(encrypted_block_info.iv)); 76 input_buffer->iv_size = encrypted_block_info.iv_size; 77 input_buffer->iv = encrypted_block_info.iv_size > 0 ? 78 encrypted_block_info.iv : NULL; 79 80 input_buffer->num_subsamples = encrypted_block_info.num_subsamples; 81 if (encrypted_block_info.num_subsamples > 0) { 82 subsamples->reserve(encrypted_block_info.num_subsamples); 83 84 for (uint32_t i = 0; i < encrypted_block_info.num_subsamples; ++i) { 85 subsamples->push_back(cdm::SubsampleEntry( 86 encrypted_block_info.subsamples[i].clear_bytes, 87 encrypted_block_info.subsamples[i].cipher_bytes)); 88 } 89 90 input_buffer->subsamples = &(*subsamples)[0]; 91 } 92 93 input_buffer->timestamp = encrypted_block_info.tracking_info.timestamp; 94 } 95 96 PP_DecryptResult CdmStatusToPpDecryptResult(cdm::Status status) { 97 switch (status) { 98 case cdm::kSuccess: 99 return PP_DECRYPTRESULT_SUCCESS; 100 case cdm::kNoKey: 101 return PP_DECRYPTRESULT_DECRYPT_NOKEY; 102 case cdm::kNeedMoreData: 103 return PP_DECRYPTRESULT_NEEDMOREDATA; 104 case cdm::kDecryptError: 105 return PP_DECRYPTRESULT_DECRYPT_ERROR; 106 case cdm::kDecodeError: 107 return PP_DECRYPTRESULT_DECODE_ERROR; 108 default: 109 PP_NOTREACHED(); 110 return PP_DECRYPTRESULT_DECODE_ERROR; 111 } 112 } 113 114 PP_DecryptedFrameFormat CdmVideoFormatToPpDecryptedFrameFormat( 115 cdm::VideoFormat format) { 116 switch (format) { 117 case cdm::kYv12: 118 return PP_DECRYPTEDFRAMEFORMAT_YV12; 119 case cdm::kI420: 120 return PP_DECRYPTEDFRAMEFORMAT_I420; 121 default: 122 return PP_DECRYPTEDFRAMEFORMAT_UNKNOWN; 123 } 124 } 125 126 PP_DecryptedSampleFormat CdmAudioFormatToPpDecryptedSampleFormat( 127 cdm::AudioFormat format) { 128 switch (format) { 129 case cdm::kAudioFormatU8: 130 return PP_DECRYPTEDSAMPLEFORMAT_U8; 131 case cdm::kAudioFormatS16: 132 return PP_DECRYPTEDSAMPLEFORMAT_S16; 133 case cdm::kAudioFormatS32: 134 return PP_DECRYPTEDSAMPLEFORMAT_S32; 135 case cdm::kAudioFormatF32: 136 return PP_DECRYPTEDSAMPLEFORMAT_F32; 137 case cdm::kAudioFormatPlanarS16: 138 return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_S16; 139 case cdm::kAudioFormatPlanarF32: 140 return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_F32; 141 default: 142 return PP_DECRYPTEDSAMPLEFORMAT_UNKNOWN; 143 } 144 } 145 146 cdm::AudioDecoderConfig::AudioCodec PpAudioCodecToCdmAudioCodec( 147 PP_AudioCodec codec) { 148 switch (codec) { 149 case PP_AUDIOCODEC_VORBIS: 150 return cdm::AudioDecoderConfig::kCodecVorbis; 151 case PP_AUDIOCODEC_AAC: 152 return cdm::AudioDecoderConfig::kCodecAac; 153 default: 154 return cdm::AudioDecoderConfig::kUnknownAudioCodec; 155 } 156 } 157 158 cdm::VideoDecoderConfig::VideoCodec PpVideoCodecToCdmVideoCodec( 159 PP_VideoCodec codec) { 160 switch (codec) { 161 case PP_VIDEOCODEC_VP8: 162 return cdm::VideoDecoderConfig::kCodecVp8; 163 case PP_VIDEOCODEC_H264: 164 return cdm::VideoDecoderConfig::kCodecH264; 165 case PP_VIDEOCODEC_VP9: 166 return cdm::VideoDecoderConfig::kCodecVp9; 167 default: 168 return cdm::VideoDecoderConfig::kUnknownVideoCodec; 169 } 170 } 171 172 cdm::VideoDecoderConfig::VideoCodecProfile PpVCProfileToCdmVCProfile( 173 PP_VideoCodecProfile profile) { 174 switch (profile) { 175 case PP_VIDEOCODECPROFILE_NOT_NEEDED: 176 return cdm::VideoDecoderConfig::kProfileNotNeeded; 177 case PP_VIDEOCODECPROFILE_H264_BASELINE: 178 return cdm::VideoDecoderConfig::kH264ProfileBaseline; 179 case PP_VIDEOCODECPROFILE_H264_MAIN: 180 return cdm::VideoDecoderConfig::kH264ProfileMain; 181 case PP_VIDEOCODECPROFILE_H264_EXTENDED: 182 return cdm::VideoDecoderConfig::kH264ProfileExtended; 183 case PP_VIDEOCODECPROFILE_H264_HIGH: 184 return cdm::VideoDecoderConfig::kH264ProfileHigh; 185 case PP_VIDEOCODECPROFILE_H264_HIGH_10: 186 return cdm::VideoDecoderConfig::kH264ProfileHigh10; 187 case PP_VIDEOCODECPROFILE_H264_HIGH_422: 188 return cdm::VideoDecoderConfig::kH264ProfileHigh422; 189 case PP_VIDEOCODECPROFILE_H264_HIGH_444_PREDICTIVE: 190 return cdm::VideoDecoderConfig::kH264ProfileHigh444Predictive; 191 default: 192 return cdm::VideoDecoderConfig::kUnknownVideoCodecProfile; 193 } 194 } 195 196 cdm::VideoFormat PpDecryptedFrameFormatToCdmVideoFormat( 197 PP_DecryptedFrameFormat format) { 198 switch (format) { 199 case PP_DECRYPTEDFRAMEFORMAT_YV12: 200 return cdm::kYv12; 201 case PP_DECRYPTEDFRAMEFORMAT_I420: 202 return cdm::kI420; 203 default: 204 return cdm::kUnknownVideoFormat; 205 } 206 } 207 208 cdm::StreamType PpDecryptorStreamTypeToCdmStreamType( 209 PP_DecryptorStreamType stream_type) { 210 switch (stream_type) { 211 case PP_DECRYPTORSTREAMTYPE_AUDIO: 212 return cdm::kStreamTypeAudio; 213 case PP_DECRYPTORSTREAMTYPE_VIDEO: 214 return cdm::kStreamTypeVideo; 215 } 216 217 PP_NOTREACHED(); 218 return cdm::kStreamTypeVideo; 219 } 220 221 cdm::SessionType PpSessionTypeToCdmSessionType(PP_SessionType session_type) { 222 switch (session_type) { 223 case PP_SESSIONTYPE_TEMPORARY: 224 return cdm::kTemporary; 225 case PP_SESSIONTYPE_PERSISTENT: 226 return cdm::kPersistent; 227 default: 228 PP_NOTREACHED(); 229 return cdm::kTemporary; 230 } 231 } 232 233 PP_CdmExceptionCode CdmExceptionTypeToPpCdmExceptionType(cdm::Error error) { 234 switch (error) { 235 case cdm::kNotSupportedError: 236 return PP_CDMEXCEPTIONCODE_NOTSUPPORTEDERROR; 237 case cdm::kInvalidStateError: 238 return PP_CDMEXCEPTIONCODE_INVALIDSTATEERROR; 239 case cdm::kInvalidAccessError: 240 return PP_CDMEXCEPTIONCODE_INVALIDACCESSERROR; 241 case cdm::kQuotaExceededError: 242 return PP_CDMEXCEPTIONCODE_QUOTAEXCEEDEDERROR; 243 case cdm::kUnknownError: 244 return PP_CDMEXCEPTIONCODE_UNKNOWNERROR; 245 case cdm::kClientError: 246 return PP_CDMEXCEPTIONCODE_CLIENTERROR; 247 case cdm::kOutputError: 248 return PP_CDMEXCEPTIONCODE_OUTPUTERROR; 249 default: 250 PP_NOTREACHED(); 251 return PP_CDMEXCEPTIONCODE_UNKNOWNERROR; 252 } 253 } 254 255 } // namespace 256 257 namespace media { 258 259 CdmAdapter::CdmAdapter(PP_Instance instance, pp::Module* module) 260 : pp::Instance(instance), 261 pp::ContentDecryptor_Private(this), 262 #if defined(OS_CHROMEOS) 263 output_protection_(this), 264 platform_verification_(this), 265 output_link_mask_(0), 266 output_protection_mask_(0), 267 query_output_protection_in_progress_(false), 268 uma_for_output_protection_query_reported_(false), 269 uma_for_output_protection_positive_result_reported_(false), 270 #endif 271 allocator_(this), 272 cdm_(NULL), 273 deferred_initialize_audio_decoder_(false), 274 deferred_audio_decoder_config_id_(0), 275 deferred_initialize_video_decoder_(false), 276 deferred_video_decoder_config_id_(0), 277 last_read_file_size_kb_(0), 278 file_size_uma_reported_(false) { 279 callback_factory_.Initialize(this); 280 } 281 282 CdmAdapter::~CdmAdapter() {} 283 284 bool CdmAdapter::CreateCdmInstance(const std::string& key_system) { 285 PP_DCHECK(!cdm_); 286 cdm_ = make_linked_ptr(CdmWrapper::Create( 287 key_system.data(), key_system.size(), GetCdmHost, this)); 288 bool success = cdm_ != NULL; 289 290 const std::string message = "CDM instance for " + key_system + 291 (success ? "" : " could not be") + " created."; 292 DLOG_TO_CONSOLE(message); 293 CDM_DLOG() << message; 294 295 return success; 296 } 297 298 // No errors should be reported in this function because the spec says: 299 // "Store this new error object internally with the MediaKeys instance being 300 // created. This will be used to fire an error against any session created for 301 // this instance." These errors will be reported during session creation 302 // (CreateSession()) or session loading (LoadSession()). 303 // TODO(xhwang): If necessary, we need to store the error here if we want to 304 // support more specific error reporting (other than "Unknown"). 305 void CdmAdapter::Initialize(const std::string& key_system) { 306 PP_DCHECK(!key_system.empty()); 307 PP_DCHECK(key_system_.empty() || (key_system_ == key_system && cdm_)); 308 309 #if defined(CHECK_DOCUMENT_URL) 310 PP_URLComponents_Dev url_components = {}; 311 const pp::URLUtil_Dev* url_util = pp::URLUtil_Dev::Get(); 312 if (!url_util) 313 return; 314 pp::Var href = url_util->GetDocumentURL(pp::InstanceHandle(pp_instance()), 315 &url_components); 316 PP_DCHECK(href.is_string()); 317 std::string url = href.AsString(); 318 PP_DCHECK(!url.empty()); 319 std::string url_scheme = 320 url.substr(url_components.scheme.begin, url_components.scheme.len); 321 if (url_scheme != "file") { 322 // Skip this check for file:// URLs as they don't have a host component. 323 PP_DCHECK(url_components.host.begin); 324 PP_DCHECK(0 < url_components.host.len); 325 } 326 #endif // defined(CHECK_DOCUMENT_URL) 327 328 if (!cdm_ && !CreateCdmInstance(key_system)) 329 return; 330 331 PP_DCHECK(cdm_); 332 key_system_ = key_system; 333 } 334 335 void CdmAdapter::SetServerCertificate(uint32_t promise_id, 336 pp::VarArrayBuffer server_certificate) { 337 const uint8_t* server_certificate_ptr = 338 static_cast<const uint8_t*>(server_certificate.Map()); 339 const uint32_t server_certificate_size = server_certificate.ByteLength(); 340 341 if (!server_certificate_ptr || 342 server_certificate_size < media::limits::kMinCertificateLength || 343 server_certificate_size > media::limits::kMaxCertificateLength) { 344 RejectPromise( 345 promise_id, cdm::kInvalidAccessError, 0, "Incorrect certificate."); 346 return; 347 } 348 349 // Initialize() doesn't report an error, so SetServerCertificate() can be 350 // called even if Initialize() failed. 351 // TODO(jrummell): Remove this code when prefixed EME gets removed. 352 if (!cdm_) { 353 RejectPromise(promise_id, 354 cdm::kInvalidStateError, 355 0, 356 "CDM has not been initialized."); 357 return; 358 } 359 360 if (!cdm_->SetServerCertificate( 361 promise_id, server_certificate_ptr, server_certificate_size)) { 362 // CDM_4 and CDM_5 don't support this method, so reject the promise. 363 RejectPromise(promise_id, cdm::kNotSupportedError, 0, "Not implemented."); 364 } 365 } 366 367 void CdmAdapter::CreateSession(uint32_t promise_id, 368 const std::string& init_data_type, 369 pp::VarArrayBuffer init_data, 370 PP_SessionType session_type) { 371 // Initialize() doesn't report an error, so CreateSession() can be called 372 // even if Initialize() failed. 373 // TODO(jrummell): Remove this code when prefixed EME gets removed. 374 // TODO(jrummell): Verify that Initialize() failing does not resolve the 375 // MediaKeys.create() promise. 376 if (!cdm_) { 377 RejectPromise(promise_id, 378 cdm::kInvalidStateError, 379 0, 380 "CDM has not been initialized."); 381 return; 382 } 383 384 cdm_->CreateSession(promise_id, 385 init_data_type.data(), 386 init_data_type.size(), 387 static_cast<const uint8_t*>(init_data.Map()), 388 init_data.ByteLength(), 389 PpSessionTypeToCdmSessionType(session_type)); 390 } 391 392 void CdmAdapter::LoadSession(uint32_t promise_id, 393 const std::string& web_session_id) { 394 // Initialize() doesn't report an error, so LoadSession() can be called 395 // even if Initialize() failed. 396 // TODO(jrummell): Remove this code when prefixed EME gets removed. 397 // TODO(jrummell): Verify that Initialize() failing does not resolve the 398 // MediaKeys.create() promise. 399 if (!cdm_) { 400 RejectPromise(promise_id, 401 cdm::kInvalidStateError, 402 0, 403 "CDM has not been initialized."); 404 return; 405 } 406 407 cdm_->LoadSession(promise_id, web_session_id.data(), web_session_id.size()); 408 } 409 410 void CdmAdapter::UpdateSession(uint32_t promise_id, 411 const std::string& web_session_id, 412 pp::VarArrayBuffer response) { 413 const uint8_t* response_ptr = static_cast<const uint8_t*>(response.Map()); 414 const uint32_t response_size = response.ByteLength(); 415 416 PP_DCHECK(!web_session_id.empty()); 417 PP_DCHECK(response_ptr); 418 PP_DCHECK(response_size > 0); 419 420 cdm_->UpdateSession(promise_id, 421 web_session_id.data(), 422 web_session_id.length(), 423 response_ptr, 424 response_size); 425 } 426 427 void CdmAdapter::CloseSession(uint32_t promise_id, 428 const std::string& web_session_id) { 429 if (!cdm_->CloseSession( 430 promise_id, web_session_id.data(), web_session_id.length())) { 431 // CDM_4 doesn't support this method, so reject the promise. 432 RejectPromise(promise_id, cdm::kNotSupportedError, 0, "Not implemented."); 433 } 434 } 435 436 void CdmAdapter::RemoveSession(uint32_t promise_id, 437 const std::string& web_session_id) { 438 cdm_->RemoveSession( 439 promise_id, web_session_id.data(), web_session_id.length()); 440 } 441 442 void CdmAdapter::GetUsableKeyIds(uint32_t promise_id, 443 const std::string& web_session_id) { 444 if (!cdm_->GetUsableKeyIds( 445 promise_id, web_session_id.data(), web_session_id.length())) { 446 // CDM_4 doesn't support this method, so reject the promise. 447 RejectPromise(promise_id, cdm::kNotSupportedError, 0, "Not implemented."); 448 } 449 } 450 451 // Note: In the following decryption/decoding related functions, errors are NOT 452 // reported via KeyError, but are reported via corresponding PPB calls. 453 454 void CdmAdapter::Decrypt(pp::Buffer_Dev encrypted_buffer, 455 const PP_EncryptedBlockInfo& encrypted_block_info) { 456 PP_DCHECK(!encrypted_buffer.is_null()); 457 458 // Release a buffer that the caller indicated it is finished with. 459 allocator_.Release(encrypted_block_info.tracking_info.buffer_id); 460 461 cdm::Status status = cdm::kDecryptError; 462 LinkedDecryptedBlock decrypted_block(new DecryptedBlockImpl()); 463 464 if (cdm_) { 465 cdm::InputBuffer input_buffer; 466 std::vector<cdm::SubsampleEntry> subsamples; 467 ConfigureInputBuffer(encrypted_buffer, encrypted_block_info, &subsamples, 468 &input_buffer); 469 status = cdm_->Decrypt(input_buffer, decrypted_block.get()); 470 PP_DCHECK(status != cdm::kSuccess || 471 (decrypted_block->DecryptedBuffer() && 472 decrypted_block->DecryptedBuffer()->Size())); 473 } 474 475 CallOnMain(callback_factory_.NewCallback( 476 &CdmAdapter::DeliverBlock, 477 status, 478 decrypted_block, 479 encrypted_block_info.tracking_info)); 480 } 481 482 void CdmAdapter::InitializeAudioDecoder( 483 const PP_AudioDecoderConfig& decoder_config, 484 pp::Buffer_Dev extra_data_buffer) { 485 PP_DCHECK(!deferred_initialize_audio_decoder_); 486 PP_DCHECK(deferred_audio_decoder_config_id_ == 0); 487 cdm::Status status = cdm::kSessionError; 488 if (cdm_) { 489 cdm::AudioDecoderConfig cdm_decoder_config; 490 cdm_decoder_config.codec = 491 PpAudioCodecToCdmAudioCodec(decoder_config.codec); 492 cdm_decoder_config.channel_count = decoder_config.channel_count; 493 cdm_decoder_config.bits_per_channel = decoder_config.bits_per_channel; 494 cdm_decoder_config.samples_per_second = decoder_config.samples_per_second; 495 cdm_decoder_config.extra_data = 496 static_cast<uint8_t*>(extra_data_buffer.data()); 497 cdm_decoder_config.extra_data_size = extra_data_buffer.size(); 498 status = cdm_->InitializeAudioDecoder(cdm_decoder_config); 499 } 500 501 if (status == cdm::kDeferredInitialization) { 502 deferred_initialize_audio_decoder_ = true; 503 deferred_audio_decoder_config_id_ = decoder_config.request_id; 504 return; 505 } 506 507 CallOnMain(callback_factory_.NewCallback( 508 &CdmAdapter::DecoderInitializeDone, 509 PP_DECRYPTORSTREAMTYPE_AUDIO, 510 decoder_config.request_id, 511 status == cdm::kSuccess)); 512 } 513 514 void CdmAdapter::InitializeVideoDecoder( 515 const PP_VideoDecoderConfig& decoder_config, 516 pp::Buffer_Dev extra_data_buffer) { 517 PP_DCHECK(!deferred_initialize_video_decoder_); 518 PP_DCHECK(deferred_video_decoder_config_id_ == 0); 519 cdm::Status status = cdm::kSessionError; 520 if (cdm_) { 521 cdm::VideoDecoderConfig cdm_decoder_config; 522 cdm_decoder_config.codec = 523 PpVideoCodecToCdmVideoCodec(decoder_config.codec); 524 cdm_decoder_config.profile = 525 PpVCProfileToCdmVCProfile(decoder_config.profile); 526 cdm_decoder_config.format = 527 PpDecryptedFrameFormatToCdmVideoFormat(decoder_config.format); 528 cdm_decoder_config.coded_size.width = decoder_config.width; 529 cdm_decoder_config.coded_size.height = decoder_config.height; 530 cdm_decoder_config.extra_data = 531 static_cast<uint8_t*>(extra_data_buffer.data()); 532 cdm_decoder_config.extra_data_size = extra_data_buffer.size(); 533 status = cdm_->InitializeVideoDecoder(cdm_decoder_config); 534 } 535 536 if (status == cdm::kDeferredInitialization) { 537 deferred_initialize_video_decoder_ = true; 538 deferred_video_decoder_config_id_ = decoder_config.request_id; 539 return; 540 } 541 542 CallOnMain(callback_factory_.NewCallback( 543 &CdmAdapter::DecoderInitializeDone, 544 PP_DECRYPTORSTREAMTYPE_VIDEO, 545 decoder_config.request_id, 546 status == cdm::kSuccess)); 547 } 548 549 void CdmAdapter::DeinitializeDecoder(PP_DecryptorStreamType decoder_type, 550 uint32_t request_id) { 551 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded. 552 if (cdm_) { 553 cdm_->DeinitializeDecoder( 554 PpDecryptorStreamTypeToCdmStreamType(decoder_type)); 555 } 556 557 CallOnMain(callback_factory_.NewCallback( 558 &CdmAdapter::DecoderDeinitializeDone, 559 decoder_type, 560 request_id)); 561 } 562 563 void CdmAdapter::ResetDecoder(PP_DecryptorStreamType decoder_type, 564 uint32_t request_id) { 565 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded. 566 if (cdm_) 567 cdm_->ResetDecoder(PpDecryptorStreamTypeToCdmStreamType(decoder_type)); 568 569 CallOnMain(callback_factory_.NewCallback(&CdmAdapter::DecoderResetDone, 570 decoder_type, 571 request_id)); 572 } 573 574 void CdmAdapter::DecryptAndDecode( 575 PP_DecryptorStreamType decoder_type, 576 pp::Buffer_Dev encrypted_buffer, 577 const PP_EncryptedBlockInfo& encrypted_block_info) { 578 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded. 579 // Release a buffer that the caller indicated it is finished with. 580 allocator_.Release(encrypted_block_info.tracking_info.buffer_id); 581 582 cdm::InputBuffer input_buffer; 583 std::vector<cdm::SubsampleEntry> subsamples; 584 if (cdm_ && !encrypted_buffer.is_null()) { 585 ConfigureInputBuffer(encrypted_buffer, 586 encrypted_block_info, 587 &subsamples, 588 &input_buffer); 589 } 590 591 cdm::Status status = cdm::kDecodeError; 592 593 switch (decoder_type) { 594 case PP_DECRYPTORSTREAMTYPE_VIDEO: { 595 LinkedVideoFrame video_frame(new VideoFrameImpl()); 596 if (cdm_) 597 status = cdm_->DecryptAndDecodeFrame(input_buffer, video_frame.get()); 598 CallOnMain(callback_factory_.NewCallback( 599 &CdmAdapter::DeliverFrame, 600 status, 601 video_frame, 602 encrypted_block_info.tracking_info)); 603 return; 604 } 605 606 case PP_DECRYPTORSTREAMTYPE_AUDIO: { 607 LinkedAudioFrames audio_frames(new AudioFramesImpl()); 608 if (cdm_) { 609 status = cdm_->DecryptAndDecodeSamples(input_buffer, 610 audio_frames.get()); 611 } 612 CallOnMain(callback_factory_.NewCallback( 613 &CdmAdapter::DeliverSamples, 614 status, 615 audio_frames, 616 encrypted_block_info.tracking_info)); 617 return; 618 } 619 620 default: 621 PP_NOTREACHED(); 622 return; 623 } 624 } 625 626 cdm::Buffer* CdmAdapter::Allocate(uint32_t capacity) { 627 return allocator_.Allocate(capacity); 628 } 629 630 void CdmAdapter::SetTimer(int64_t delay_ms, void* context) { 631 // NOTE: doesn't really need to run on the main thread; could just as well run 632 // on a helper thread if |cdm_| were thread-friendly and care was taken. We 633 // only use CallOnMainThread() here to get delayed-execution behavior. 634 pp::Module::Get()->core()->CallOnMainThread( 635 delay_ms, 636 callback_factory_.NewCallback(&CdmAdapter::TimerExpired, context), 637 PP_OK); 638 } 639 640 void CdmAdapter::TimerExpired(int32_t result, void* context) { 641 PP_DCHECK(result == PP_OK); 642 cdm_->TimerExpired(context); 643 } 644 645 // cdm::Host_4 methods 646 647 double CdmAdapter::GetCurrentWallTimeInSeconds() { 648 return GetCurrentWallTime(); 649 } 650 651 void CdmAdapter::OnSessionCreated(uint32_t session_id, 652 const char* web_session_id, 653 uint32_t web_session_id_length) { 654 uint32_t promise_id = cdm_->LookupPromiseId(session_id); 655 cdm_->AssignWebSessionId(session_id, web_session_id, web_session_id_length); 656 OnResolveNewSessionPromise(promise_id, web_session_id, web_session_id_length); 657 } 658 659 void CdmAdapter::OnSessionMessage(uint32_t session_id, 660 const char* message, 661 uint32_t message_length, 662 const char* destination_url, 663 uint32_t destination_url_length) { 664 std::string web_session_id = cdm_->LookupWebSessionId(session_id); 665 OnSessionMessage(web_session_id.data(), 666 web_session_id.length(), 667 message, 668 message_length, 669 destination_url, 670 destination_url_length); 671 } 672 673 void CdmAdapter::OnSessionReady(uint32_t session_id) { 674 uint32_t promise_id = cdm_->LookupPromiseId(session_id); 675 if (promise_id) { 676 OnResolvePromise(promise_id); 677 } else { 678 std::string web_session_id = cdm_->LookupWebSessionId(session_id); 679 PostOnMain(callback_factory_.NewCallback( 680 &CdmAdapter::SendSessionReadyInternal, web_session_id)); 681 } 682 } 683 684 void CdmAdapter::OnSessionClosed(uint32_t session_id) { 685 uint32_t promise_id = cdm_->LookupPromiseId(session_id); 686 std::string web_session_id = cdm_->LookupWebSessionId(session_id); 687 cdm_->DropWebSessionId(web_session_id); 688 if (promise_id) { 689 OnResolvePromise(promise_id); 690 } else { 691 OnSessionClosed(web_session_id.data(), web_session_id.length()); 692 } 693 } 694 695 void CdmAdapter::OnSessionError(uint32_t session_id, 696 cdm::MediaKeyError error_code, 697 uint32_t system_code) { 698 uint32_t promise_id = cdm_->LookupPromiseId(session_id); 699 700 // Existing cdm::MediaKeyError don't map to DOM error names. Convert them 701 // into non-standard names so that the prefixed API can extract them. 702 // TODO(jrummell): Remove this conversion and the inverse when CDM4 is gone. 703 cdm::Error error; 704 switch (error_code) { 705 case cdm::kPrefixedClientError: 706 error = cdm::kClientError; 707 break; 708 case cdm::kPrefixedOutputError: 709 error = cdm::kOutputError; 710 break; 711 case cdm::kPrefixedUnknownError: 712 default: 713 error = cdm::kUnknownError; 714 break; 715 } 716 717 if (promise_id) { 718 RejectPromise(promise_id, error, system_code, std::string()); 719 } else { 720 std::string web_session_id = cdm_->LookupWebSessionId(session_id); 721 OnSessionError(web_session_id.data(), 722 web_session_id.length(), 723 error, 724 system_code, 725 NULL, 726 0); 727 } 728 } 729 730 // cdm::Host_6 methods 731 732 cdm::Time CdmAdapter::GetCurrentWallTime() { 733 return pp::Module::Get()->core()->GetTime(); 734 } 735 736 void CdmAdapter::OnResolveNewSessionPromise(uint32_t promise_id, 737 const char* web_session_id, 738 uint32_t web_session_id_length) { 739 PostOnMain(callback_factory_.NewCallback( 740 &CdmAdapter::SendPromiseResolvedWithSessionInternal, 741 promise_id, 742 std::string(web_session_id, web_session_id_length))); 743 } 744 745 void CdmAdapter::OnResolvePromise(uint32_t promise_id) { 746 PostOnMain(callback_factory_.NewCallback( 747 &CdmAdapter::SendPromiseResolvedInternal, promise_id)); 748 } 749 750 void CdmAdapter::OnResolveKeyIdsPromise(uint32_t promise_id, 751 const cdm::BinaryData* usable_key_ids, 752 uint32_t usable_key_ids_length) { 753 std::vector<std::vector<uint8> > key_ids; 754 for (uint32_t i = 0; i < usable_key_ids_length; ++i) { 755 key_ids.push_back( 756 std::vector<uint8>(usable_key_ids[i].data, 757 usable_key_ids[i].data + usable_key_ids[i].length)); 758 } 759 PostOnMain(callback_factory_.NewCallback( 760 &CdmAdapter::SendPromiseResolvedWithUsableKeyIdsInternal, 761 promise_id, 762 key_ids)); 763 } 764 765 void CdmAdapter::OnRejectPromise(uint32_t promise_id, 766 cdm::Error error, 767 uint32_t system_code, 768 const char* error_message, 769 uint32_t error_message_length) { 770 // UMA to investigate http://crbug.com/410630 771 // TODO(xhwang): Remove after bug is fixed. 772 if (system_code == 0x27) { 773 pp::UMAPrivate uma_interface(this); 774 uma_interface.HistogramCustomCounts("Media.EME.CdmFileIO.FileSizeKBOnError", 775 last_read_file_size_kb_, 776 kSizeKBMin, 777 kSizeKBMax, 778 kSizeKBBuckets); 779 } 780 781 RejectPromise(promise_id, 782 error, 783 system_code, 784 std::string(error_message, error_message_length)); 785 } 786 787 void CdmAdapter::RejectPromise(uint32_t promise_id, 788 cdm::Error error, 789 uint32_t system_code, 790 const std::string& error_message) { 791 PostOnMain(callback_factory_.NewCallback( 792 &CdmAdapter::SendPromiseRejectedInternal, 793 promise_id, 794 SessionError(error, system_code, error_message))); 795 } 796 797 void CdmAdapter::OnSessionMessage(const char* web_session_id, 798 uint32_t web_session_id_length, 799 const char* message, 800 uint32_t message_length, 801 const char* destination_url, 802 uint32_t destination_url_length) { 803 PostOnMain(callback_factory_.NewCallback( 804 &CdmAdapter::SendSessionMessageInternal, 805 std::string(web_session_id, web_session_id_length), 806 std::vector<uint8>(message, message + message_length), 807 std::string(destination_url, destination_url_length))); 808 } 809 810 void CdmAdapter::OnSessionUsableKeysChange(const char* web_session_id, 811 uint32_t web_session_id_length, 812 bool has_additional_usable_key) { 813 PostOnMain(callback_factory_.NewCallback( 814 &CdmAdapter::SendSessionUsableKeysChangeInternal, 815 std::string(web_session_id, web_session_id_length), 816 has_additional_usable_key)); 817 } 818 819 void CdmAdapter::OnExpirationChange(const char* web_session_id, 820 uint32_t web_session_id_length, 821 cdm::Time new_expiry_time) { 822 PostOnMain(callback_factory_.NewCallback( 823 &CdmAdapter::SendExpirationChangeInternal, 824 std::string(web_session_id, web_session_id_length), 825 new_expiry_time)); 826 } 827 828 void CdmAdapter::OnSessionClosed(const char* web_session_id, 829 uint32_t web_session_id_length) { 830 PostOnMain(callback_factory_.NewCallback( 831 &CdmAdapter::SendSessionClosedInternal, 832 std::string(web_session_id, web_session_id_length))); 833 } 834 835 void CdmAdapter::OnSessionError(const char* web_session_id, 836 uint32_t web_session_id_length, 837 cdm::Error error, 838 uint32_t system_code, 839 const char* error_message, 840 uint32_t error_message_length) { 841 PostOnMain(callback_factory_.NewCallback( 842 &CdmAdapter::SendSessionErrorInternal, 843 std::string(web_session_id, web_session_id_length), 844 SessionError(error, 845 system_code, 846 std::string(error_message, error_message_length)))); 847 } 848 849 // Helpers to pass the event to Pepper. 850 851 void CdmAdapter::SendPromiseResolvedInternal(int32_t result, 852 uint32_t promise_id) { 853 PP_DCHECK(result == PP_OK); 854 pp::ContentDecryptor_Private::PromiseResolved(promise_id); 855 } 856 857 void CdmAdapter::SendPromiseResolvedWithSessionInternal( 858 int32_t result, 859 uint32_t promise_id, 860 const std::string& web_session_id) { 861 PP_DCHECK(result == PP_OK); 862 pp::ContentDecryptor_Private::PromiseResolvedWithSession(promise_id, 863 web_session_id); 864 } 865 866 void CdmAdapter::SendPromiseResolvedWithUsableKeyIdsInternal( 867 int32_t result, 868 uint32_t promise_id, 869 std::vector<std::vector<uint8> > key_ids) { 870 PP_DCHECK(result == PP_OK); 871 pp::ContentDecryptor_Private::PromiseResolvedWithKeyIds(promise_id, key_ids); 872 } 873 874 void CdmAdapter::SendPromiseRejectedInternal(int32_t result, 875 uint32_t promise_id, 876 const SessionError& error) { 877 PP_DCHECK(result == PP_OK); 878 pp::ContentDecryptor_Private::PromiseRejected( 879 promise_id, 880 CdmExceptionTypeToPpCdmExceptionType(error.error), 881 error.system_code, 882 error.error_description); 883 } 884 885 void CdmAdapter::SendSessionMessageInternal( 886 int32_t result, 887 const std::string& web_session_id, 888 const std::vector<uint8>& message, 889 const std::string& destination_url) { 890 PP_DCHECK(result == PP_OK); 891 892 pp::VarArrayBuffer message_array_buffer(message.size()); 893 if (message.size() > 0) { 894 memcpy(message_array_buffer.Map(), message.data(), message.size()); 895 } 896 897 pp::ContentDecryptor_Private::SessionMessage( 898 web_session_id, message_array_buffer, destination_url); 899 } 900 901 void CdmAdapter::SendSessionReadyInternal(int32_t result, 902 const std::string& web_session_id) { 903 PP_DCHECK(result == PP_OK); 904 pp::ContentDecryptor_Private::SessionReady(web_session_id); 905 } 906 907 void CdmAdapter::SendSessionClosedInternal(int32_t result, 908 const std::string& web_session_id) { 909 PP_DCHECK(result == PP_OK); 910 pp::ContentDecryptor_Private::SessionClosed(web_session_id); 911 } 912 913 void CdmAdapter::SendSessionErrorInternal(int32_t result, 914 const std::string& web_session_id, 915 const SessionError& error) { 916 PP_DCHECK(result == PP_OK); 917 pp::ContentDecryptor_Private::SessionError( 918 web_session_id, 919 CdmExceptionTypeToPpCdmExceptionType(error.error), 920 error.system_code, 921 error.error_description); 922 } 923 924 void CdmAdapter::SendSessionUsableKeysChangeInternal( 925 int32_t result, 926 const std::string& web_session_id, 927 bool has_additional_usable_key) { 928 PP_DCHECK(result == PP_OK); 929 pp::ContentDecryptor_Private::SessionKeysChange(web_session_id, 930 has_additional_usable_key); 931 } 932 933 void CdmAdapter::SendExpirationChangeInternal(int32_t result, 934 const std::string& web_session_id, 935 cdm::Time new_expiry_time) { 936 PP_DCHECK(result == PP_OK); 937 pp::ContentDecryptor_Private::SessionExpirationChange(web_session_id, 938 new_expiry_time); 939 } 940 941 void CdmAdapter::DeliverBlock(int32_t result, 942 const cdm::Status& status, 943 const LinkedDecryptedBlock& decrypted_block, 944 const PP_DecryptTrackingInfo& tracking_info) { 945 PP_DCHECK(result == PP_OK); 946 PP_DecryptedBlockInfo decrypted_block_info = {}; 947 decrypted_block_info.tracking_info = tracking_info; 948 decrypted_block_info.tracking_info.timestamp = decrypted_block->Timestamp(); 949 decrypted_block_info.tracking_info.buffer_id = 0; 950 decrypted_block_info.data_size = 0; 951 decrypted_block_info.result = CdmStatusToPpDecryptResult(status); 952 953 pp::Buffer_Dev buffer; 954 955 if (decrypted_block_info.result == PP_DECRYPTRESULT_SUCCESS) { 956 PP_DCHECK(decrypted_block.get() && decrypted_block->DecryptedBuffer()); 957 if (!decrypted_block.get() || !decrypted_block->DecryptedBuffer()) { 958 PP_NOTREACHED(); 959 decrypted_block_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR; 960 } else { 961 PpbBuffer* ppb_buffer = 962 static_cast<PpbBuffer*>(decrypted_block->DecryptedBuffer()); 963 decrypted_block_info.tracking_info.buffer_id = ppb_buffer->buffer_id(); 964 decrypted_block_info.data_size = ppb_buffer->Size(); 965 966 buffer = ppb_buffer->TakeBuffer(); 967 } 968 } 969 970 pp::ContentDecryptor_Private::DeliverBlock(buffer, decrypted_block_info); 971 } 972 973 void CdmAdapter::DecoderInitializeDone(int32_t result, 974 PP_DecryptorStreamType decoder_type, 975 uint32_t request_id, 976 bool success) { 977 PP_DCHECK(result == PP_OK); 978 pp::ContentDecryptor_Private::DecoderInitializeDone(decoder_type, 979 request_id, 980 success); 981 } 982 983 void CdmAdapter::DecoderDeinitializeDone(int32_t result, 984 PP_DecryptorStreamType decoder_type, 985 uint32_t request_id) { 986 pp::ContentDecryptor_Private::DecoderDeinitializeDone(decoder_type, 987 request_id); 988 } 989 990 void CdmAdapter::DecoderResetDone(int32_t result, 991 PP_DecryptorStreamType decoder_type, 992 uint32_t request_id) { 993 pp::ContentDecryptor_Private::DecoderResetDone(decoder_type, request_id); 994 } 995 996 void CdmAdapter::DeliverFrame( 997 int32_t result, 998 const cdm::Status& status, 999 const LinkedVideoFrame& video_frame, 1000 const PP_DecryptTrackingInfo& tracking_info) { 1001 PP_DCHECK(result == PP_OK); 1002 PP_DecryptedFrameInfo decrypted_frame_info = {}; 1003 decrypted_frame_info.tracking_info.request_id = tracking_info.request_id; 1004 decrypted_frame_info.tracking_info.buffer_id = 0; 1005 decrypted_frame_info.result = CdmStatusToPpDecryptResult(status); 1006 1007 pp::Buffer_Dev buffer; 1008 1009 if (decrypted_frame_info.result == PP_DECRYPTRESULT_SUCCESS) { 1010 if (!IsValidVideoFrame(video_frame)) { 1011 PP_NOTREACHED(); 1012 decrypted_frame_info.result = PP_DECRYPTRESULT_DECODE_ERROR; 1013 } else { 1014 PpbBuffer* ppb_buffer = 1015 static_cast<PpbBuffer*>(video_frame->FrameBuffer()); 1016 1017 decrypted_frame_info.tracking_info.timestamp = video_frame->Timestamp(); 1018 decrypted_frame_info.tracking_info.buffer_id = ppb_buffer->buffer_id(); 1019 decrypted_frame_info.format = 1020 CdmVideoFormatToPpDecryptedFrameFormat(video_frame->Format()); 1021 decrypted_frame_info.width = video_frame->Size().width; 1022 decrypted_frame_info.height = video_frame->Size().height; 1023 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_Y] = 1024 video_frame->PlaneOffset(cdm::VideoFrame::kYPlane); 1025 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_U] = 1026 video_frame->PlaneOffset(cdm::VideoFrame::kUPlane); 1027 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_V] = 1028 video_frame->PlaneOffset(cdm::VideoFrame::kVPlane); 1029 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_Y] = 1030 video_frame->Stride(cdm::VideoFrame::kYPlane); 1031 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_U] = 1032 video_frame->Stride(cdm::VideoFrame::kUPlane); 1033 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_V] = 1034 video_frame->Stride(cdm::VideoFrame::kVPlane); 1035 1036 buffer = ppb_buffer->TakeBuffer(); 1037 } 1038 } 1039 1040 pp::ContentDecryptor_Private::DeliverFrame(buffer, decrypted_frame_info); 1041 } 1042 1043 void CdmAdapter::DeliverSamples(int32_t result, 1044 const cdm::Status& status, 1045 const LinkedAudioFrames& audio_frames, 1046 const PP_DecryptTrackingInfo& tracking_info) { 1047 PP_DCHECK(result == PP_OK); 1048 1049 PP_DecryptedSampleInfo decrypted_sample_info = {}; 1050 decrypted_sample_info.tracking_info = tracking_info; 1051 decrypted_sample_info.tracking_info.timestamp = 0; 1052 decrypted_sample_info.tracking_info.buffer_id = 0; 1053 decrypted_sample_info.data_size = 0; 1054 decrypted_sample_info.result = CdmStatusToPpDecryptResult(status); 1055 1056 pp::Buffer_Dev buffer; 1057 1058 if (decrypted_sample_info.result == PP_DECRYPTRESULT_SUCCESS) { 1059 PP_DCHECK(audio_frames.get() && audio_frames->FrameBuffer()); 1060 if (!audio_frames.get() || !audio_frames->FrameBuffer()) { 1061 PP_NOTREACHED(); 1062 decrypted_sample_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR; 1063 } else { 1064 PpbBuffer* ppb_buffer = 1065 static_cast<PpbBuffer*>(audio_frames->FrameBuffer()); 1066 1067 decrypted_sample_info.tracking_info.buffer_id = ppb_buffer->buffer_id(); 1068 decrypted_sample_info.data_size = ppb_buffer->Size(); 1069 decrypted_sample_info.format = 1070 CdmAudioFormatToPpDecryptedSampleFormat(audio_frames->Format()); 1071 1072 buffer = ppb_buffer->TakeBuffer(); 1073 } 1074 } 1075 1076 pp::ContentDecryptor_Private::DeliverSamples(buffer, decrypted_sample_info); 1077 } 1078 1079 bool CdmAdapter::IsValidVideoFrame(const LinkedVideoFrame& video_frame) { 1080 if (!video_frame.get() || 1081 !video_frame->FrameBuffer() || 1082 (video_frame->Format() != cdm::kI420 && 1083 video_frame->Format() != cdm::kYv12)) { 1084 CDM_DLOG() << "Invalid video frame!"; 1085 return false; 1086 } 1087 1088 PpbBuffer* ppb_buffer = static_cast<PpbBuffer*>(video_frame->FrameBuffer()); 1089 1090 for (uint32_t i = 0; i < cdm::VideoFrame::kMaxPlanes; ++i) { 1091 int plane_height = (i == cdm::VideoFrame::kYPlane) ? 1092 video_frame->Size().height : (video_frame->Size().height + 1) / 2; 1093 cdm::VideoFrame::VideoPlane plane = 1094 static_cast<cdm::VideoFrame::VideoPlane>(i); 1095 if (ppb_buffer->Size() < video_frame->PlaneOffset(plane) + 1096 plane_height * video_frame->Stride(plane)) { 1097 return false; 1098 } 1099 } 1100 1101 return true; 1102 } 1103 1104 void CdmAdapter::OnFirstFileRead(int32_t file_size_bytes) { 1105 PP_DCHECK(IsMainThread()); 1106 PP_DCHECK(file_size_bytes >= 0); 1107 1108 last_read_file_size_kb_ = file_size_bytes / 1024; 1109 1110 if (file_size_uma_reported_) 1111 return; 1112 1113 pp::UMAPrivate uma_interface(this); 1114 uma_interface.HistogramCustomCounts( 1115 "Media.EME.CdmFileIO.FileSizeKBOnFirstRead", 1116 last_read_file_size_kb_, 1117 kSizeKBMin, 1118 kSizeKBMax, 1119 kSizeKBBuckets); 1120 file_size_uma_reported_ = true; 1121 } 1122 1123 #if !defined(NDEBUG) 1124 void CdmAdapter::LogToConsole(const pp::Var& value) { 1125 PP_DCHECK(IsMainThread()); 1126 const PPB_Console* console = reinterpret_cast<const PPB_Console*>( 1127 pp::Module::Get()->GetBrowserInterface(PPB_CONSOLE_INTERFACE)); 1128 console->Log(pp_instance(), PP_LOGLEVEL_LOG, value.pp_var()); 1129 } 1130 #endif // !defined(NDEBUG) 1131 1132 void CdmAdapter::SendPlatformChallenge( 1133 const char* service_id, uint32_t service_id_length, 1134 const char* challenge, uint32_t challenge_length) { 1135 #if defined(OS_CHROMEOS) 1136 pp::VarArrayBuffer challenge_var(challenge_length); 1137 uint8_t* var_data = static_cast<uint8_t*>(challenge_var.Map()); 1138 memcpy(var_data, challenge, challenge_length); 1139 1140 std::string service_id_str(service_id, service_id_length); 1141 1142 linked_ptr<PepperPlatformChallengeResponse> response( 1143 new PepperPlatformChallengeResponse()); 1144 1145 int32_t result = platform_verification_.ChallengePlatform( 1146 pp::Var(service_id_str), 1147 challenge_var, 1148 &response->signed_data, 1149 &response->signed_data_signature, 1150 &response->platform_key_certificate, 1151 callback_factory_.NewCallback(&CdmAdapter::SendPlatformChallengeDone, 1152 response)); 1153 challenge_var.Unmap(); 1154 if (result == PP_OK_COMPLETIONPENDING) 1155 return; 1156 1157 // Fall through on error and issue an empty OnPlatformChallengeResponse(). 1158 PP_DCHECK(result != PP_OK); 1159 #endif 1160 1161 cdm::PlatformChallengeResponse platform_challenge_response = {}; 1162 cdm_->OnPlatformChallengeResponse(platform_challenge_response); 1163 } 1164 1165 void CdmAdapter::EnableOutputProtection(uint32_t desired_protection_mask) { 1166 #if defined(OS_CHROMEOS) 1167 int32_t result = output_protection_.EnableProtection( 1168 desired_protection_mask, callback_factory_.NewCallback( 1169 &CdmAdapter::EnableProtectionDone)); 1170 1171 // Errors are ignored since clients must call QueryOutputProtectionStatus() to 1172 // inspect the protection status on a regular basis. 1173 1174 if (result != PP_OK && result != PP_OK_COMPLETIONPENDING) 1175 CDM_DLOG() << __FUNCTION__ << " failed!"; 1176 #endif 1177 } 1178 1179 void CdmAdapter::QueryOutputProtectionStatus() { 1180 #if defined(OS_CHROMEOS) 1181 PP_DCHECK(!query_output_protection_in_progress_); 1182 1183 output_link_mask_ = output_protection_mask_ = 0; 1184 const int32_t result = output_protection_.QueryStatus( 1185 &output_link_mask_, 1186 &output_protection_mask_, 1187 callback_factory_.NewCallback( 1188 &CdmAdapter::QueryOutputProtectionStatusDone)); 1189 if (result == PP_OK_COMPLETIONPENDING) { 1190 query_output_protection_in_progress_ = true; 1191 ReportOutputProtectionQuery(); 1192 return; 1193 } 1194 1195 // Fall through on error and issue an empty OnQueryOutputProtectionStatus(). 1196 PP_DCHECK(result != PP_OK); 1197 #endif 1198 1199 cdm_->OnQueryOutputProtectionStatus(0, 0); 1200 } 1201 1202 void CdmAdapter::OnDeferredInitializationDone(cdm::StreamType stream_type, 1203 cdm::Status decoder_status) { 1204 switch (stream_type) { 1205 case cdm::kStreamTypeAudio: 1206 PP_DCHECK(deferred_initialize_audio_decoder_); 1207 CallOnMain( 1208 callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone, 1209 PP_DECRYPTORSTREAMTYPE_AUDIO, 1210 deferred_audio_decoder_config_id_, 1211 decoder_status == cdm::kSuccess)); 1212 deferred_initialize_audio_decoder_ = false; 1213 deferred_audio_decoder_config_id_ = 0; 1214 break; 1215 case cdm::kStreamTypeVideo: 1216 PP_DCHECK(deferred_initialize_video_decoder_); 1217 CallOnMain( 1218 callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone, 1219 PP_DECRYPTORSTREAMTYPE_VIDEO, 1220 deferred_video_decoder_config_id_, 1221 decoder_status == cdm::kSuccess)); 1222 deferred_initialize_video_decoder_ = false; 1223 deferred_video_decoder_config_id_ = 0; 1224 break; 1225 } 1226 } 1227 1228 // The CDM owns the returned object and must call FileIO::Close() to release it. 1229 cdm::FileIO* CdmAdapter::CreateFileIO(cdm::FileIOClient* client) { 1230 return new CdmFileIOImpl( 1231 client, 1232 pp_instance(), 1233 callback_factory_.NewCallback(&CdmAdapter::OnFirstFileRead)); 1234 } 1235 1236 #if defined(OS_CHROMEOS) 1237 void CdmAdapter::ReportOutputProtectionUMA(OutputProtectionStatus status) { 1238 pp::UMAPrivate uma_interface(this); 1239 uma_interface.HistogramEnumeration( 1240 "Media.EME.OutputProtection", status, OUTPUT_PROTECTION_MAX); 1241 } 1242 1243 void CdmAdapter::ReportOutputProtectionQuery() { 1244 if (uma_for_output_protection_query_reported_) 1245 return; 1246 1247 ReportOutputProtectionUMA(OUTPUT_PROTECTION_QUERIED); 1248 uma_for_output_protection_query_reported_ = true; 1249 } 1250 1251 void CdmAdapter::ReportOutputProtectionQueryResult() { 1252 if (uma_for_output_protection_positive_result_reported_) 1253 return; 1254 1255 // Report UMAs for output protection query result. 1256 uint32_t external_links = (output_link_mask_ & ~cdm::kLinkTypeInternal); 1257 1258 if (!external_links) { 1259 ReportOutputProtectionUMA(OUTPUT_PROTECTION_NO_EXTERNAL_LINK); 1260 uma_for_output_protection_positive_result_reported_ = true; 1261 return; 1262 } 1263 1264 const uint32_t kProtectableLinks = 1265 cdm::kLinkTypeHDMI | cdm::kLinkTypeDVI | cdm::kLinkTypeDisplayPort; 1266 bool is_unprotectable_link_connected = external_links & ~kProtectableLinks; 1267 bool is_hdcp_enabled_on_all_protectable_links = 1268 output_protection_mask_ & cdm::kProtectionHDCP; 1269 1270 if (!is_unprotectable_link_connected && 1271 is_hdcp_enabled_on_all_protectable_links) { 1272 ReportOutputProtectionUMA( 1273 OUTPUT_PROTECTION_ALL_EXTERNAL_LINKS_PROTECTED); 1274 uma_for_output_protection_positive_result_reported_ = true; 1275 return; 1276 } 1277 1278 // Do not report a negative result because it could be a false negative. 1279 // Instead, we will calculate number of negatives using the total number of 1280 // queries and success results. 1281 } 1282 1283 void CdmAdapter::SendPlatformChallengeDone( 1284 int32_t result, 1285 const linked_ptr<PepperPlatformChallengeResponse>& response) { 1286 if (result != PP_OK) { 1287 CDM_DLOG() << __FUNCTION__ << ": Platform challenge failed!"; 1288 cdm::PlatformChallengeResponse platform_challenge_response = {}; 1289 cdm_->OnPlatformChallengeResponse(platform_challenge_response); 1290 return; 1291 } 1292 1293 pp::VarArrayBuffer signed_data_var(response->signed_data); 1294 pp::VarArrayBuffer signed_data_signature_var(response->signed_data_signature); 1295 std::string platform_key_certificate_string = 1296 response->platform_key_certificate.AsString(); 1297 1298 cdm::PlatformChallengeResponse platform_challenge_response = { 1299 static_cast<uint8_t*>(signed_data_var.Map()), 1300 signed_data_var.ByteLength(), 1301 static_cast<uint8_t*>(signed_data_signature_var.Map()), 1302 signed_data_signature_var.ByteLength(), 1303 reinterpret_cast<const uint8_t*>(platform_key_certificate_string.data()), 1304 static_cast<uint32_t>(platform_key_certificate_string.length())}; 1305 cdm_->OnPlatformChallengeResponse(platform_challenge_response); 1306 1307 signed_data_var.Unmap(); 1308 signed_data_signature_var.Unmap(); 1309 } 1310 1311 void CdmAdapter::EnableProtectionDone(int32_t result) { 1312 // Does nothing since clients must call QueryOutputProtectionStatus() to 1313 // inspect the protection status on a regular basis. 1314 CDM_DLOG() << __FUNCTION__ << " : " << result; 1315 } 1316 1317 void CdmAdapter::QueryOutputProtectionStatusDone(int32_t result) { 1318 PP_DCHECK(query_output_protection_in_progress_); 1319 query_output_protection_in_progress_ = false; 1320 1321 // Return a protection status of none on error. 1322 if (result != PP_OK) 1323 output_link_mask_ = output_protection_mask_ = 0; 1324 else 1325 ReportOutputProtectionQueryResult(); 1326 1327 cdm_->OnQueryOutputProtectionStatus(output_link_mask_, 1328 output_protection_mask_); 1329 } 1330 #endif 1331 1332 CdmAdapter::SessionError::SessionError(cdm::Error error, 1333 uint32_t system_code, 1334 std::string error_description) 1335 : error(error), 1336 system_code(system_code), 1337 error_description(error_description) { 1338 } 1339 1340 void* GetCdmHost(int host_interface_version, void* user_data) { 1341 if (!host_interface_version || !user_data) 1342 return NULL; 1343 1344 COMPILE_ASSERT( 1345 cdm::ContentDecryptionModule::Host::kVersion == cdm::Host_6::kVersion, 1346 update_code_below); 1347 1348 // Ensure IsSupportedCdmHostVersion matches implementation of this function. 1349 // Always update this DCHECK when updating this function. 1350 // If this check fails, update this function and DCHECK or update 1351 // IsSupportedCdmHostVersion. 1352 1353 PP_DCHECK( 1354 // Future version is not supported. 1355 !IsSupportedCdmHostVersion(cdm::Host_6::kVersion + 1) && 1356 // Current version is supported. 1357 IsSupportedCdmHostVersion(cdm::Host_6::kVersion) && 1358 // Include all previous supported versions (if any) here. 1359 // Host_5 is not supported. 1360 IsSupportedCdmHostVersion(cdm::Host_4::kVersion) && 1361 // One older than the oldest supported version is not supported. 1362 !IsSupportedCdmHostVersion(cdm::Host_4::kVersion - 1)); 1363 PP_DCHECK(IsSupportedCdmHostVersion(host_interface_version)); 1364 1365 CdmAdapter* cdm_adapter = static_cast<CdmAdapter*>(user_data); 1366 CDM_DLOG() << "Create CDM Host with version " << host_interface_version; 1367 switch (host_interface_version) { 1368 case cdm::Host_4::kVersion: 1369 return static_cast<cdm::Host_4*>(cdm_adapter); 1370 case cdm::Host_6::kVersion: 1371 return static_cast<cdm::Host_6*>(cdm_adapter); 1372 default: 1373 PP_NOTREACHED(); 1374 return NULL; 1375 } 1376 } 1377 1378 // This object is the global object representing this plugin library as long 1379 // as it is loaded. 1380 class CdmAdapterModule : public pp::Module { 1381 public: 1382 CdmAdapterModule() : pp::Module() { 1383 // This function blocks the renderer thread (PluginInstance::Initialize()). 1384 // Move this call to other places if this may be a concern in the future. 1385 INITIALIZE_CDM_MODULE(); 1386 } 1387 virtual ~CdmAdapterModule() { 1388 DeinitializeCdmModule(); 1389 } 1390 1391 virtual pp::Instance* CreateInstance(PP_Instance instance) { 1392 return new CdmAdapter(instance, this); 1393 } 1394 1395 private: 1396 CdmFileIOImpl::ResourceTracker cdm_file_io_impl_resource_tracker; 1397 }; 1398 1399 } // namespace media 1400 1401 namespace pp { 1402 1403 // Factory function for your specialization of the Module object. 1404 Module* CreateModule() { 1405 return new media::CdmAdapterModule(); 1406 } 1407 1408 } // namespace pp 1409
