cdm_adapter.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
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/cdm/ppapi/cdm_file_io_impl.h"
8#include "media/cdm/ppapi/cdm_helpers.h"
9#include "media/cdm/ppapi/cdm_logging.h"
10#include "media/cdm/ppapi/supported_cdm_versions.h"
11#include "ppapi/c/ppb_console.h"
12#include "ppapi/cpp/private/uma_private.h"
13
14#if defined(CHECK_DOCUMENT_URL)
15#include "ppapi/cpp/dev/url_util_dev.h"
16#include "ppapi/cpp/instance_handle.h"
17#endif  // defined(CHECK_DOCUMENT_URL)
18
19namespace {
20
21#if !defined(NDEBUG)
22  #define DLOG_TO_CONSOLE(message) LogToConsole(message);
23#else
24  #define DLOG_TO_CONSOLE(message) (void)(message);
25#endif
26
27bool IsMainThread() {
28  return pp::Module::Get()->core()->IsMainThread();
29}
30
31// Posts a task to run |cb| on the main thread. The task is posted even if the
32// current thread is the main thread.
33void PostOnMain(pp::CompletionCallback cb) {
34  pp::Module::Get()->core()->CallOnMainThread(0, cb, PP_OK);
35}
36
37// Ensures |cb| is called on the main thread, either because the current thread
38// is the main thread or by posting it to the main thread.
39void CallOnMain(pp::CompletionCallback cb) {
40  // TODO(tomfinegan): This is only necessary because PPAPI doesn't allow calls
41  // off the main thread yet. Remove this once the change lands.
42  if (IsMainThread())
43    cb.Run(PP_OK);
44  else
45    PostOnMain(cb);
46}
47
48// Configures a cdm::InputBuffer. |subsamples| must exist as long as
49// |input_buffer| is in use.
50void ConfigureInputBuffer(
51    const pp::Buffer_Dev& encrypted_buffer,
52    const PP_EncryptedBlockInfo& encrypted_block_info,
53    std::vector<cdm::SubsampleEntry>* subsamples,
54    cdm::InputBuffer* input_buffer) {
55  PP_DCHECK(subsamples);
56  PP_DCHECK(!encrypted_buffer.is_null());
57
58  input_buffer->data = static_cast<uint8_t*>(encrypted_buffer.data());
59  input_buffer->data_size = encrypted_block_info.data_size;
60  PP_DCHECK(encrypted_buffer.size() >= input_buffer->data_size);
61
62  PP_DCHECK(encrypted_block_info.key_id_size <=
63            arraysize(encrypted_block_info.key_id));
64  input_buffer->key_id_size = encrypted_block_info.key_id_size;
65  input_buffer->key_id = input_buffer->key_id_size > 0 ?
66      encrypted_block_info.key_id : NULL;
67
68  PP_DCHECK(encrypted_block_info.iv_size <= arraysize(encrypted_block_info.iv));
69  input_buffer->iv_size = encrypted_block_info.iv_size;
70  input_buffer->iv = encrypted_block_info.iv_size > 0 ?
71      encrypted_block_info.iv : NULL;
72
73  input_buffer->num_subsamples = encrypted_block_info.num_subsamples;
74  if (encrypted_block_info.num_subsamples > 0) {
75    subsamples->reserve(encrypted_block_info.num_subsamples);
76
77    for (uint32_t i = 0; i < encrypted_block_info.num_subsamples; ++i) {
78      subsamples->push_back(cdm::SubsampleEntry(
79          encrypted_block_info.subsamples[i].clear_bytes,
80          encrypted_block_info.subsamples[i].cipher_bytes));
81    }
82
83    input_buffer->subsamples = &(*subsamples)[0];
84  }
85
86  input_buffer->timestamp = encrypted_block_info.tracking_info.timestamp;
87}
88
89PP_DecryptResult CdmStatusToPpDecryptResult(cdm::Status status) {
90  switch (status) {
91    case cdm::kSuccess:
92      return PP_DECRYPTRESULT_SUCCESS;
93    case cdm::kNoKey:
94      return PP_DECRYPTRESULT_DECRYPT_NOKEY;
95    case cdm::kNeedMoreData:
96      return PP_DECRYPTRESULT_NEEDMOREDATA;
97    case cdm::kDecryptError:
98      return PP_DECRYPTRESULT_DECRYPT_ERROR;
99    case cdm::kDecodeError:
100      return PP_DECRYPTRESULT_DECODE_ERROR;
101    default:
102      PP_NOTREACHED();
103      return PP_DECRYPTRESULT_DECODE_ERROR;
104  }
105}
106
107PP_DecryptedFrameFormat CdmVideoFormatToPpDecryptedFrameFormat(
108    cdm::VideoFormat format) {
109  switch (format) {
110    case cdm::kYv12:
111      return PP_DECRYPTEDFRAMEFORMAT_YV12;
112    case cdm::kI420:
113      return PP_DECRYPTEDFRAMEFORMAT_I420;
114    default:
115      return PP_DECRYPTEDFRAMEFORMAT_UNKNOWN;
116  }
117}
118
119PP_DecryptedSampleFormat CdmAudioFormatToPpDecryptedSampleFormat(
120    cdm::AudioFormat format) {
121  switch (format) {
122    case cdm::kAudioFormatU8:
123      return PP_DECRYPTEDSAMPLEFORMAT_U8;
124    case cdm::kAudioFormatS16:
125      return PP_DECRYPTEDSAMPLEFORMAT_S16;
126    case cdm::kAudioFormatS32:
127      return PP_DECRYPTEDSAMPLEFORMAT_S32;
128    case cdm::kAudioFormatF32:
129      return PP_DECRYPTEDSAMPLEFORMAT_F32;
130    case cdm::kAudioFormatPlanarS16:
131      return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_S16;
132    case cdm::kAudioFormatPlanarF32:
133      return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_F32;
134    default:
135      return PP_DECRYPTEDSAMPLEFORMAT_UNKNOWN;
136  }
137}
138
139cdm::AudioDecoderConfig::AudioCodec PpAudioCodecToCdmAudioCodec(
140    PP_AudioCodec codec) {
141  switch (codec) {
142    case PP_AUDIOCODEC_VORBIS:
143      return cdm::AudioDecoderConfig::kCodecVorbis;
144    case PP_AUDIOCODEC_AAC:
145      return cdm::AudioDecoderConfig::kCodecAac;
146    default:
147      return cdm::AudioDecoderConfig::kUnknownAudioCodec;
148  }
149}
150
151cdm::VideoDecoderConfig::VideoCodec PpVideoCodecToCdmVideoCodec(
152    PP_VideoCodec codec) {
153  switch (codec) {
154    case PP_VIDEOCODEC_VP8:
155      return cdm::VideoDecoderConfig::kCodecVp8;
156    case PP_VIDEOCODEC_H264:
157      return cdm::VideoDecoderConfig::kCodecH264;
158    case PP_VIDEOCODEC_VP9:
159      return cdm::VideoDecoderConfig::kCodecVp9;
160    default:
161      return cdm::VideoDecoderConfig::kUnknownVideoCodec;
162  }
163}
164
165cdm::VideoDecoderConfig::VideoCodecProfile PpVCProfileToCdmVCProfile(
166    PP_VideoCodecProfile profile) {
167  switch (profile) {
168    case PP_VIDEOCODECPROFILE_NOT_NEEDED:
169      return cdm::VideoDecoderConfig::kProfileNotNeeded;
170    case PP_VIDEOCODECPROFILE_H264_BASELINE:
171      return cdm::VideoDecoderConfig::kH264ProfileBaseline;
172    case PP_VIDEOCODECPROFILE_H264_MAIN:
173      return cdm::VideoDecoderConfig::kH264ProfileMain;
174    case PP_VIDEOCODECPROFILE_H264_EXTENDED:
175      return cdm::VideoDecoderConfig::kH264ProfileExtended;
176    case PP_VIDEOCODECPROFILE_H264_HIGH:
177      return cdm::VideoDecoderConfig::kH264ProfileHigh;
178    case PP_VIDEOCODECPROFILE_H264_HIGH_10:
179      return cdm::VideoDecoderConfig::kH264ProfileHigh10;
180    case PP_VIDEOCODECPROFILE_H264_HIGH_422:
181      return cdm::VideoDecoderConfig::kH264ProfileHigh422;
182    case PP_VIDEOCODECPROFILE_H264_HIGH_444_PREDICTIVE:
183      return cdm::VideoDecoderConfig::kH264ProfileHigh444Predictive;
184    default:
185      return cdm::VideoDecoderConfig::kUnknownVideoCodecProfile;
186  }
187}
188
189cdm::VideoFormat PpDecryptedFrameFormatToCdmVideoFormat(
190    PP_DecryptedFrameFormat format) {
191  switch (format) {
192    case PP_DECRYPTEDFRAMEFORMAT_YV12:
193      return cdm::kYv12;
194    case PP_DECRYPTEDFRAMEFORMAT_I420:
195      return cdm::kI420;
196    default:
197      return cdm::kUnknownVideoFormat;
198  }
199}
200
201cdm::StreamType PpDecryptorStreamTypeToCdmStreamType(
202    PP_DecryptorStreamType stream_type) {
203  switch (stream_type) {
204    case PP_DECRYPTORSTREAMTYPE_AUDIO:
205      return cdm::kStreamTypeAudio;
206    case PP_DECRYPTORSTREAMTYPE_VIDEO:
207      return cdm::kStreamTypeVideo;
208  }
209
210  PP_NOTREACHED();
211  return cdm::kStreamTypeVideo;
212}
213
214cdm::SessionType PpSessionTypeToCdmSessionType(PP_SessionType session_type) {
215  switch (session_type) {
216    case PP_SESSIONTYPE_TEMPORARY:
217      return cdm::kTemporary;
218    case PP_SESSIONTYPE_PERSISTENT:
219      return cdm::kPersistent;
220    default:
221      PP_NOTREACHED();
222      return cdm::kTemporary;
223  }
224}
225
226PP_CdmExceptionCode CdmExceptionTypeToPpCdmExceptionType(cdm::Error error) {
227  switch (error) {
228    case cdm::kNotSupportedError:
229      return PP_CDMEXCEPTIONCODE_NOTSUPPORTEDERROR;
230    case cdm::kInvalidStateError:
231      return PP_CDMEXCEPTIONCODE_INVALIDSTATEERROR;
232    case cdm::kInvalidAccessError:
233      return PP_CDMEXCEPTIONCODE_INVALIDACCESSERROR;
234    case cdm::kQuotaExceededError:
235      return PP_CDMEXCEPTIONCODE_QUOTAEXCEEDEDERROR;
236    case cdm::kUnknownError:
237      return PP_CDMEXCEPTIONCODE_UNKNOWNERROR;
238    case cdm::kClientError:
239      return PP_CDMEXCEPTIONCODE_CLIENTERROR;
240    case cdm::kOutputError:
241      return PP_CDMEXCEPTIONCODE_OUTPUTERROR;
242    default:
243      PP_NOTREACHED();
244      return PP_CDMEXCEPTIONCODE_UNKNOWNERROR;
245  }
246}
247
248}  // namespace
249
250namespace media {
251
252CdmAdapter::CdmAdapter(PP_Instance instance, pp::Module* module)
253    : pp::Instance(instance),
254      pp::ContentDecryptor_Private(this),
255#if defined(OS_CHROMEOS)
256      output_protection_(this),
257      platform_verification_(this),
258      output_link_mask_(0),
259      output_protection_mask_(0),
260      query_output_protection_in_progress_(false),
261      uma_for_output_protection_query_reported_(false),
262      uma_for_output_protection_positive_result_reported_(false),
263#endif
264      allocator_(this),
265      cdm_(NULL),
266      deferred_initialize_audio_decoder_(false),
267      deferred_audio_decoder_config_id_(0),
268      deferred_initialize_video_decoder_(false),
269      deferred_video_decoder_config_id_(0) {
270  callback_factory_.Initialize(this);
271}
272
273CdmAdapter::~CdmAdapter() {}
274
275bool CdmAdapter::CreateCdmInstance(const std::string& key_system) {
276  PP_DCHECK(!cdm_);
277  cdm_ = make_linked_ptr(CdmWrapper::Create(
278      key_system.data(), key_system.size(), GetCdmHost, this));
279  bool success = cdm_ != NULL;
280
281  const std::string message = "CDM instance for " + key_system +
282                              (success ? "" : " could not be") + " created.";
283  DLOG_TO_CONSOLE(message);
284  CDM_DLOG() << message;
285
286  return success;
287}
288
289// No errors should be reported in this function because the spec says:
290// "Store this new error object internally with the MediaKeys instance being
291// created. This will be used to fire an error against any session created for
292// this instance." These errors will be reported during session creation
293// (CreateSession()) or session loading (LoadSession()).
294// TODO(xhwang): If necessary, we need to store the error here if we want to
295// support more specific error reporting (other than "Unknown").
296void CdmAdapter::Initialize(const std::string& key_system) {
297  PP_DCHECK(!key_system.empty());
298  PP_DCHECK(key_system_.empty() || (key_system_ == key_system && cdm_));
299
300#if defined(CHECK_DOCUMENT_URL)
301  PP_URLComponents_Dev url_components = {};
302  const pp::URLUtil_Dev* url_util = pp::URLUtil_Dev::Get();
303  if (!url_util)
304    return;
305  pp::Var href = url_util->GetDocumentURL(pp::InstanceHandle(pp_instance()),
306                                          &url_components);
307  PP_DCHECK(href.is_string());
308  std::string url = href.AsString();
309  PP_DCHECK(!url.empty());
310  std::string url_scheme =
311      url.substr(url_components.scheme.begin, url_components.scheme.len);
312  if (url_scheme != "file") {
313    // Skip this check for file:// URLs as they don't have a host component.
314    PP_DCHECK(url_components.host.begin);
315    PP_DCHECK(0 < url_components.host.len);
316  }
317#endif  // defined(CHECK_DOCUMENT_URL)
318
319  if (!cdm_ && !CreateCdmInstance(key_system))
320    return;
321
322  PP_DCHECK(cdm_);
323  key_system_ = key_system;
324}
325
326void CdmAdapter::CreateSession(uint32_t promise_id,
327                               const std::string& init_data_type,
328                               pp::VarArrayBuffer init_data,
329                               PP_SessionType session_type) {
330  // Initialize() doesn't report an error, so CreateSession() can be called
331  // even if Initialize() failed.
332  // TODO(jrummell): Remove this code when prefixed EME gets removed.
333  // TODO(jrummell): Verify that Initialize() failing does not resolve the
334  // MediaKeys.create() promise.
335  if (!cdm_) {
336    RejectPromise(promise_id,
337                  cdm::kInvalidStateError,
338                  0,
339                  "CDM has not been initialized.");
340    return;
341  }
342
343  cdm_->CreateSession(promise_id,
344                      init_data_type.data(),
345                      init_data_type.size(),
346                      static_cast<const uint8_t*>(init_data.Map()),
347                      init_data.ByteLength(),
348                      PpSessionTypeToCdmSessionType(session_type));
349}
350
351void CdmAdapter::LoadSession(uint32_t promise_id,
352                             const std::string& web_session_id) {
353  // Initialize() doesn't report an error, so LoadSession() can be called
354  // even if Initialize() failed.
355  // TODO(jrummell): Remove this code when prefixed EME gets removed.
356  // TODO(jrummell): Verify that Initialize() failing does not resolve the
357  // MediaKeys.create() promise.
358  if (!cdm_) {
359    RejectPromise(promise_id,
360                  cdm::kInvalidStateError,
361                  0,
362                  "CDM has not been initialized.");
363    return;
364  }
365
366  cdm_->LoadSession(promise_id, web_session_id.data(), web_session_id.size());
367}
368
369void CdmAdapter::UpdateSession(uint32_t promise_id,
370                               const std::string& web_session_id,
371                               pp::VarArrayBuffer response) {
372  const uint8_t* response_ptr = static_cast<const uint8_t*>(response.Map());
373  const uint32_t response_size = response.ByteLength();
374
375  PP_DCHECK(!web_session_id.empty());
376  PP_DCHECK(response_ptr);
377  PP_DCHECK(response_size > 0);
378
379  cdm_->UpdateSession(promise_id,
380                      web_session_id.data(),
381                      web_session_id.length(),
382                      response_ptr,
383                      response_size);
384}
385
386void CdmAdapter::ReleaseSession(uint32_t promise_id,
387                                const std::string& web_session_id) {
388  cdm_->ReleaseSession(
389      promise_id, web_session_id.data(), web_session_id.length());
390}
391
392// Note: In the following decryption/decoding related functions, errors are NOT
393// reported via KeyError, but are reported via corresponding PPB calls.
394
395void CdmAdapter::Decrypt(pp::Buffer_Dev encrypted_buffer,
396                         const PP_EncryptedBlockInfo& encrypted_block_info) {
397  PP_DCHECK(!encrypted_buffer.is_null());
398
399  // Release a buffer that the caller indicated it is finished with.
400  allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
401
402  cdm::Status status = cdm::kDecryptError;
403  LinkedDecryptedBlock decrypted_block(new DecryptedBlockImpl());
404
405  if (cdm_) {
406    cdm::InputBuffer input_buffer;
407    std::vector<cdm::SubsampleEntry> subsamples;
408    ConfigureInputBuffer(encrypted_buffer, encrypted_block_info, &subsamples,
409                         &input_buffer);
410    status = cdm_->Decrypt(input_buffer, decrypted_block.get());
411    PP_DCHECK(status != cdm::kSuccess ||
412              (decrypted_block->DecryptedBuffer() &&
413               decrypted_block->DecryptedBuffer()->Size()));
414  }
415
416  CallOnMain(callback_factory_.NewCallback(
417      &CdmAdapter::DeliverBlock,
418      status,
419      decrypted_block,
420      encrypted_block_info.tracking_info));
421}
422
423void CdmAdapter::InitializeAudioDecoder(
424    const PP_AudioDecoderConfig& decoder_config,
425    pp::Buffer_Dev extra_data_buffer) {
426  PP_DCHECK(!deferred_initialize_audio_decoder_);
427  PP_DCHECK(deferred_audio_decoder_config_id_ == 0);
428  cdm::Status status = cdm::kSessionError;
429  if (cdm_) {
430    cdm::AudioDecoderConfig cdm_decoder_config;
431    cdm_decoder_config.codec =
432        PpAudioCodecToCdmAudioCodec(decoder_config.codec);
433    cdm_decoder_config.channel_count = decoder_config.channel_count;
434    cdm_decoder_config.bits_per_channel = decoder_config.bits_per_channel;
435    cdm_decoder_config.samples_per_second = decoder_config.samples_per_second;
436    cdm_decoder_config.extra_data =
437        static_cast<uint8_t*>(extra_data_buffer.data());
438    cdm_decoder_config.extra_data_size = extra_data_buffer.size();
439    status = cdm_->InitializeAudioDecoder(cdm_decoder_config);
440  }
441
442  if (status == cdm::kDeferredInitialization) {
443    deferred_initialize_audio_decoder_ = true;
444    deferred_audio_decoder_config_id_ = decoder_config.request_id;
445    return;
446  }
447
448  CallOnMain(callback_factory_.NewCallback(
449      &CdmAdapter::DecoderInitializeDone,
450      PP_DECRYPTORSTREAMTYPE_AUDIO,
451      decoder_config.request_id,
452      status == cdm::kSuccess));
453}
454
455void CdmAdapter::InitializeVideoDecoder(
456    const PP_VideoDecoderConfig& decoder_config,
457    pp::Buffer_Dev extra_data_buffer) {
458  PP_DCHECK(!deferred_initialize_video_decoder_);
459  PP_DCHECK(deferred_video_decoder_config_id_ == 0);
460  cdm::Status status = cdm::kSessionError;
461  if (cdm_) {
462    cdm::VideoDecoderConfig cdm_decoder_config;
463    cdm_decoder_config.codec =
464        PpVideoCodecToCdmVideoCodec(decoder_config.codec);
465    cdm_decoder_config.profile =
466        PpVCProfileToCdmVCProfile(decoder_config.profile);
467    cdm_decoder_config.format =
468        PpDecryptedFrameFormatToCdmVideoFormat(decoder_config.format);
469    cdm_decoder_config.coded_size.width = decoder_config.width;
470    cdm_decoder_config.coded_size.height = decoder_config.height;
471    cdm_decoder_config.extra_data =
472        static_cast<uint8_t*>(extra_data_buffer.data());
473    cdm_decoder_config.extra_data_size = extra_data_buffer.size();
474    status = cdm_->InitializeVideoDecoder(cdm_decoder_config);
475  }
476
477  if (status == cdm::kDeferredInitialization) {
478    deferred_initialize_video_decoder_ = true;
479    deferred_video_decoder_config_id_ = decoder_config.request_id;
480    return;
481  }
482
483  CallOnMain(callback_factory_.NewCallback(
484      &CdmAdapter::DecoderInitializeDone,
485      PP_DECRYPTORSTREAMTYPE_VIDEO,
486      decoder_config.request_id,
487      status == cdm::kSuccess));
488}
489
490void CdmAdapter::DeinitializeDecoder(PP_DecryptorStreamType decoder_type,
491                                     uint32_t request_id) {
492  PP_DCHECK(cdm_);  // InitializeXxxxxDecoder should have succeeded.
493  if (cdm_) {
494    cdm_->DeinitializeDecoder(
495        PpDecryptorStreamTypeToCdmStreamType(decoder_type));
496  }
497
498  CallOnMain(callback_factory_.NewCallback(
499      &CdmAdapter::DecoderDeinitializeDone,
500      decoder_type,
501      request_id));
502}
503
504void CdmAdapter::ResetDecoder(PP_DecryptorStreamType decoder_type,
505                              uint32_t request_id) {
506  PP_DCHECK(cdm_);  // InitializeXxxxxDecoder should have succeeded.
507  if (cdm_)
508    cdm_->ResetDecoder(PpDecryptorStreamTypeToCdmStreamType(decoder_type));
509
510  CallOnMain(callback_factory_.NewCallback(&CdmAdapter::DecoderResetDone,
511                                           decoder_type,
512                                           request_id));
513}
514
515void CdmAdapter::DecryptAndDecode(
516    PP_DecryptorStreamType decoder_type,
517    pp::Buffer_Dev encrypted_buffer,
518    const PP_EncryptedBlockInfo& encrypted_block_info) {
519  PP_DCHECK(cdm_);  // InitializeXxxxxDecoder should have succeeded.
520  // Release a buffer that the caller indicated it is finished with.
521  allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
522
523  cdm::InputBuffer input_buffer;
524  std::vector<cdm::SubsampleEntry> subsamples;
525  if (cdm_ && !encrypted_buffer.is_null()) {
526    ConfigureInputBuffer(encrypted_buffer,
527                         encrypted_block_info,
528                         &subsamples,
529                         &input_buffer);
530  }
531
532  cdm::Status status = cdm::kDecodeError;
533
534  switch (decoder_type) {
535    case PP_DECRYPTORSTREAMTYPE_VIDEO: {
536      LinkedVideoFrame video_frame(new VideoFrameImpl());
537      if (cdm_)
538        status = cdm_->DecryptAndDecodeFrame(input_buffer, video_frame.get());
539      CallOnMain(callback_factory_.NewCallback(
540          &CdmAdapter::DeliverFrame,
541          status,
542          video_frame,
543          encrypted_block_info.tracking_info));
544      return;
545    }
546
547    case PP_DECRYPTORSTREAMTYPE_AUDIO: {
548      LinkedAudioFrames audio_frames(new AudioFramesImpl());
549      if (cdm_) {
550        status = cdm_->DecryptAndDecodeSamples(input_buffer,
551                                               audio_frames.get());
552      }
553      CallOnMain(callback_factory_.NewCallback(
554          &CdmAdapter::DeliverSamples,
555          status,
556          audio_frames,
557          encrypted_block_info.tracking_info));
558      return;
559    }
560
561    default:
562      PP_NOTREACHED();
563      return;
564  }
565}
566
567cdm::Buffer* CdmAdapter::Allocate(uint32_t capacity) {
568  return allocator_.Allocate(capacity);
569}
570
571void CdmAdapter::SetTimer(int64_t delay_ms, void* context) {
572  // NOTE: doesn't really need to run on the main thread; could just as well run
573  // on a helper thread if |cdm_| were thread-friendly and care was taken.  We
574  // only use CallOnMainThread() here to get delayed-execution behavior.
575  pp::Module::Get()->core()->CallOnMainThread(
576      delay_ms,
577      callback_factory_.NewCallback(&CdmAdapter::TimerExpired, context),
578      PP_OK);
579}
580
581void CdmAdapter::TimerExpired(int32_t result, void* context) {
582  PP_DCHECK(result == PP_OK);
583  cdm_->TimerExpired(context);
584}
585
586// cdm::Host_4 methods
587
588double CdmAdapter::GetCurrentWallTimeInSeconds() {
589  return GetCurrentTime();
590}
591
592void CdmAdapter::OnSessionCreated(uint32_t session_id,
593                                  const char* web_session_id,
594                                  uint32_t web_session_id_length) {
595  uint32_t promise_id = cdm_->LookupPromiseId(session_id);
596  cdm_->AssignWebSessionId(session_id, web_session_id, web_session_id_length);
597  OnResolveNewSessionPromise(promise_id, web_session_id, web_session_id_length);
598}
599
600void CdmAdapter::OnSessionMessage(uint32_t session_id,
601                                  const char* message,
602                                  uint32_t message_length,
603                                  const char* destination_url,
604                                  uint32_t destination_url_length) {
605  std::string web_session_id = cdm_->LookupWebSessionId(session_id);
606  OnSessionMessage(web_session_id.data(),
607                   web_session_id.length(),
608                   message,
609                   message_length,
610                   destination_url,
611                   destination_url_length);
612}
613
614void CdmAdapter::OnSessionReady(uint32_t session_id) {
615  uint32_t promise_id = cdm_->LookupPromiseId(session_id);
616  if (promise_id) {
617    OnResolvePromise(promise_id);
618  } else {
619    std::string web_session_id = cdm_->LookupWebSessionId(session_id);
620    OnSessionReady(web_session_id.data(), web_session_id.length());
621  }
622}
623
624void CdmAdapter::OnSessionClosed(uint32_t session_id) {
625  uint32_t promise_id = cdm_->LookupPromiseId(session_id);
626  std::string web_session_id = cdm_->LookupWebSessionId(session_id);
627  cdm_->DropWebSessionId(web_session_id);
628  if (promise_id) {
629    OnResolvePromise(promise_id);
630  } else {
631    OnSessionClosed(web_session_id.data(), web_session_id.length());
632  }
633}
634
635void CdmAdapter::OnSessionError(uint32_t session_id,
636                                cdm::MediaKeyError error_code,
637                                uint32_t system_code) {
638  uint32_t promise_id = cdm_->LookupPromiseId(session_id);
639
640  // Existing cdm::MediaKeyError don't map to DOM error names. Convert them
641  // into non-standard names so that the prefixed API can extract them.
642  // TODO(jrummell): Remove this conversion and the inverse when CDM4 is gone.
643  cdm::Error error;
644  switch (error_code) {
645    case cdm::kPrefixedClientError:
646      error = cdm::kClientError;
647      break;
648    case cdm::kPrefixedOutputError:
649      error = cdm::kOutputError;
650      break;
651    case cdm::kPrefixedUnknownError:
652    default:
653      error = cdm::kUnknownError;
654      break;
655  }
656
657  if (promise_id) {
658    RejectPromise(promise_id, error, system_code, std::string());
659  } else {
660    std::string web_session_id = cdm_->LookupWebSessionId(session_id);
661    OnSessionError(web_session_id.data(),
662                   web_session_id.length(),
663                   error,
664                   system_code,
665                   NULL,
666                   0);
667  }
668}
669
670// cdm::Host_5 methods
671
672cdm::Time CdmAdapter::GetCurrentTime() {
673  return pp::Module::Get()->core()->GetTime();
674}
675
676void CdmAdapter::OnResolvePromise(uint32_t promise_id) {
677  PostOnMain(callback_factory_.NewCallback(
678      &CdmAdapter::SendPromiseResolvedInternal, promise_id));
679}
680
681void CdmAdapter::OnResolveNewSessionPromise(uint32_t promise_id,
682                                            const char* web_session_id,
683                                            uint32_t web_session_id_length) {
684  PostOnMain(callback_factory_.NewCallback(
685      &CdmAdapter::SendPromiseResolvedWithSessionInternal,
686      promise_id,
687      std::string(web_session_id, web_session_id_length)));
688}
689
690void CdmAdapter::OnRejectPromise(uint32_t promise_id,
691                                 cdm::Error error,
692                                 uint32_t system_code,
693                                 const char* error_message,
694                                 uint32_t error_message_length) {
695  RejectPromise(promise_id,
696                error,
697                system_code,
698                std::string(error_message, error_message_length));
699}
700
701void CdmAdapter::RejectPromise(uint32_t promise_id,
702                               cdm::Error error,
703                               uint32_t system_code,
704                               const std::string& error_message) {
705  PostOnMain(callback_factory_.NewCallback(
706      &CdmAdapter::SendPromiseRejectedInternal,
707      promise_id,
708      SessionError(error, system_code, error_message)));
709}
710
711void CdmAdapter::OnSessionMessage(const char* web_session_id,
712                                  uint32_t web_session_id_length,
713                                  const char* message,
714                                  uint32_t message_length,
715                                  const char* destination_url,
716                                  uint32_t destination_url_length) {
717  PostOnMain(callback_factory_.NewCallback(
718      &CdmAdapter::SendSessionMessageInternal,
719      std::string(web_session_id, web_session_id_length),
720      std::vector<uint8>(message, message + message_length),
721      std::string(destination_url, destination_url_length)));
722}
723
724void CdmAdapter::OnSessionKeysChange(const char* web_session_id,
725                                     uint32_t web_session_id_length,
726                                     bool has_additional_usable_key) {
727  // TODO(jrummell): Implement this event in subsequent CL
728  // (http://crbug.com/370251).
729  PP_NOTREACHED();
730}
731
732void CdmAdapter::OnExpirationChange(const char* web_session_id,
733                                    uint32_t web_session_id_length,
734                                    cdm::Time new_expiry_time) {
735  // TODO(jrummell): Implement this event in subsequent CL
736  // (http://crbug.com/370251).
737  PP_NOTREACHED();
738}
739
740void CdmAdapter::OnSessionReady(const char* web_session_id,
741                                uint32_t web_session_id_length) {
742  PostOnMain(callback_factory_.NewCallback(
743      &CdmAdapter::SendSessionReadyInternal,
744      std::string(web_session_id, web_session_id_length)));
745}
746
747void CdmAdapter::OnSessionClosed(const char* web_session_id,
748                                 uint32_t web_session_id_length) {
749  PostOnMain(callback_factory_.NewCallback(
750      &CdmAdapter::SendSessionClosedInternal,
751      std::string(web_session_id, web_session_id_length)));
752}
753
754void CdmAdapter::OnSessionError(const char* web_session_id,
755                                uint32_t web_session_id_length,
756                                cdm::Error error,
757                                uint32_t system_code,
758                                const char* error_message,
759                                uint32_t error_message_length) {
760  PostOnMain(callback_factory_.NewCallback(
761      &CdmAdapter::SendSessionErrorInternal,
762      std::string(web_session_id, web_session_id_length),
763      SessionError(error,
764                   system_code,
765                   std::string(error_message, error_message_length))));
766}
767
768// Helpers to pass the event to Pepper.
769
770void CdmAdapter::SendPromiseResolvedInternal(int32_t result,
771                                             uint32_t promise_id) {
772  PP_DCHECK(result == PP_OK);
773  pp::ContentDecryptor_Private::PromiseResolved(promise_id);
774}
775
776void CdmAdapter::SendPromiseResolvedWithSessionInternal(
777    int32_t result,
778    uint32_t promise_id,
779    const std::string& web_session_id) {
780  PP_DCHECK(result == PP_OK);
781  pp::ContentDecryptor_Private::PromiseResolvedWithSession(promise_id,
782                                                           web_session_id);
783}
784
785void CdmAdapter::SendPromiseRejectedInternal(int32_t result,
786                                             uint32_t promise_id,
787                                             const SessionError& error) {
788  PP_DCHECK(result == PP_OK);
789  pp::ContentDecryptor_Private::PromiseRejected(
790      promise_id,
791      CdmExceptionTypeToPpCdmExceptionType(error.error),
792      error.system_code,
793      error.error_description);
794}
795
796void CdmAdapter::SendSessionMessageInternal(
797    int32_t result,
798    const std::string& web_session_id,
799    const std::vector<uint8>& message,
800    const std::string& destination_url) {
801  PP_DCHECK(result == PP_OK);
802
803  pp::VarArrayBuffer message_array_buffer(message.size());
804  if (message.size() > 0) {
805    memcpy(message_array_buffer.Map(), message.data(), message.size());
806  }
807
808  pp::ContentDecryptor_Private::SessionMessage(
809      web_session_id, message_array_buffer, destination_url);
810}
811
812void CdmAdapter::SendSessionReadyInternal(int32_t result,
813                                          const std::string& web_session_id) {
814  PP_DCHECK(result == PP_OK);
815  pp::ContentDecryptor_Private::SessionReady(web_session_id);
816}
817
818void CdmAdapter::SendSessionClosedInternal(int32_t result,
819                                           const std::string& web_session_id) {
820  PP_DCHECK(result == PP_OK);
821  pp::ContentDecryptor_Private::SessionClosed(web_session_id);
822}
823
824void CdmAdapter::SendSessionErrorInternal(int32_t result,
825                                          const std::string& web_session_id,
826                                          const SessionError& error) {
827  PP_DCHECK(result == PP_OK);
828  pp::ContentDecryptor_Private::SessionError(
829      web_session_id,
830      CdmExceptionTypeToPpCdmExceptionType(error.error),
831      error.system_code,
832      error.error_description);
833}
834
835void CdmAdapter::DeliverBlock(int32_t result,
836                              const cdm::Status& status,
837                              const LinkedDecryptedBlock& decrypted_block,
838                              const PP_DecryptTrackingInfo& tracking_info) {
839  PP_DCHECK(result == PP_OK);
840  PP_DecryptedBlockInfo decrypted_block_info = {};
841  decrypted_block_info.tracking_info = tracking_info;
842  decrypted_block_info.tracking_info.timestamp = decrypted_block->Timestamp();
843  decrypted_block_info.tracking_info.buffer_id = 0;
844  decrypted_block_info.data_size = 0;
845  decrypted_block_info.result = CdmStatusToPpDecryptResult(status);
846
847  pp::Buffer_Dev buffer;
848
849  if (decrypted_block_info.result == PP_DECRYPTRESULT_SUCCESS) {
850    PP_DCHECK(decrypted_block.get() && decrypted_block->DecryptedBuffer());
851    if (!decrypted_block.get() || !decrypted_block->DecryptedBuffer()) {
852      PP_NOTREACHED();
853      decrypted_block_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
854    } else {
855      PpbBuffer* ppb_buffer =
856          static_cast<PpbBuffer*>(decrypted_block->DecryptedBuffer());
857      decrypted_block_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
858      decrypted_block_info.data_size = ppb_buffer->Size();
859
860      buffer = ppb_buffer->TakeBuffer();
861    }
862  }
863
864  pp::ContentDecryptor_Private::DeliverBlock(buffer, decrypted_block_info);
865}
866
867void CdmAdapter::DecoderInitializeDone(int32_t result,
868                                       PP_DecryptorStreamType decoder_type,
869                                       uint32_t request_id,
870                                       bool success) {
871  PP_DCHECK(result == PP_OK);
872  pp::ContentDecryptor_Private::DecoderInitializeDone(decoder_type,
873                                                      request_id,
874                                                      success);
875}
876
877void CdmAdapter::DecoderDeinitializeDone(int32_t result,
878                                         PP_DecryptorStreamType decoder_type,
879                                         uint32_t request_id) {
880  pp::ContentDecryptor_Private::DecoderDeinitializeDone(decoder_type,
881                                                        request_id);
882}
883
884void CdmAdapter::DecoderResetDone(int32_t result,
885                                  PP_DecryptorStreamType decoder_type,
886                                  uint32_t request_id) {
887  pp::ContentDecryptor_Private::DecoderResetDone(decoder_type, request_id);
888}
889
890void CdmAdapter::DeliverFrame(
891    int32_t result,
892    const cdm::Status& status,
893    const LinkedVideoFrame& video_frame,
894    const PP_DecryptTrackingInfo& tracking_info) {
895  PP_DCHECK(result == PP_OK);
896  PP_DecryptedFrameInfo decrypted_frame_info = {};
897  decrypted_frame_info.tracking_info.request_id = tracking_info.request_id;
898  decrypted_frame_info.tracking_info.buffer_id = 0;
899  decrypted_frame_info.result = CdmStatusToPpDecryptResult(status);
900
901  pp::Buffer_Dev buffer;
902
903  if (decrypted_frame_info.result == PP_DECRYPTRESULT_SUCCESS) {
904    if (!IsValidVideoFrame(video_frame)) {
905      PP_NOTREACHED();
906      decrypted_frame_info.result = PP_DECRYPTRESULT_DECODE_ERROR;
907    } else {
908      PpbBuffer* ppb_buffer =
909          static_cast<PpbBuffer*>(video_frame->FrameBuffer());
910
911      decrypted_frame_info.tracking_info.timestamp = video_frame->Timestamp();
912      decrypted_frame_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
913      decrypted_frame_info.format =
914          CdmVideoFormatToPpDecryptedFrameFormat(video_frame->Format());
915      decrypted_frame_info.width = video_frame->Size().width;
916      decrypted_frame_info.height = video_frame->Size().height;
917      decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_Y] =
918          video_frame->PlaneOffset(cdm::VideoFrame::kYPlane);
919      decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_U] =
920          video_frame->PlaneOffset(cdm::VideoFrame::kUPlane);
921      decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_V] =
922          video_frame->PlaneOffset(cdm::VideoFrame::kVPlane);
923      decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_Y] =
924          video_frame->Stride(cdm::VideoFrame::kYPlane);
925      decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_U] =
926          video_frame->Stride(cdm::VideoFrame::kUPlane);
927      decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_V] =
928          video_frame->Stride(cdm::VideoFrame::kVPlane);
929
930      buffer = ppb_buffer->TakeBuffer();
931    }
932  }
933
934  pp::ContentDecryptor_Private::DeliverFrame(buffer, decrypted_frame_info);
935}
936
937void CdmAdapter::DeliverSamples(int32_t result,
938                                const cdm::Status& status,
939                                const LinkedAudioFrames& audio_frames,
940                                const PP_DecryptTrackingInfo& tracking_info) {
941  PP_DCHECK(result == PP_OK);
942
943  PP_DecryptedSampleInfo decrypted_sample_info = {};
944  decrypted_sample_info.tracking_info = tracking_info;
945  decrypted_sample_info.tracking_info.timestamp = 0;
946  decrypted_sample_info.tracking_info.buffer_id = 0;
947  decrypted_sample_info.data_size = 0;
948  decrypted_sample_info.result = CdmStatusToPpDecryptResult(status);
949
950  pp::Buffer_Dev buffer;
951
952  if (decrypted_sample_info.result == PP_DECRYPTRESULT_SUCCESS) {
953    PP_DCHECK(audio_frames.get() && audio_frames->FrameBuffer());
954    if (!audio_frames.get() || !audio_frames->FrameBuffer()) {
955      PP_NOTREACHED();
956      decrypted_sample_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
957    } else {
958      PpbBuffer* ppb_buffer =
959          static_cast<PpbBuffer*>(audio_frames->FrameBuffer());
960
961      decrypted_sample_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
962      decrypted_sample_info.data_size = ppb_buffer->Size();
963      decrypted_sample_info.format =
964          CdmAudioFormatToPpDecryptedSampleFormat(audio_frames->Format());
965
966      buffer = ppb_buffer->TakeBuffer();
967    }
968  }
969
970  pp::ContentDecryptor_Private::DeliverSamples(buffer, decrypted_sample_info);
971}
972
973bool CdmAdapter::IsValidVideoFrame(const LinkedVideoFrame& video_frame) {
974  if (!video_frame.get() ||
975      !video_frame->FrameBuffer() ||
976      (video_frame->Format() != cdm::kI420 &&
977       video_frame->Format() != cdm::kYv12)) {
978    CDM_DLOG() << "Invalid video frame!";
979    return false;
980  }
981
982  PpbBuffer* ppb_buffer = static_cast<PpbBuffer*>(video_frame->FrameBuffer());
983
984  for (uint32_t i = 0; i < cdm::VideoFrame::kMaxPlanes; ++i) {
985    int plane_height = (i == cdm::VideoFrame::kYPlane) ?
986        video_frame->Size().height : (video_frame->Size().height + 1) / 2;
987    cdm::VideoFrame::VideoPlane plane =
988        static_cast<cdm::VideoFrame::VideoPlane>(i);
989    if (ppb_buffer->Size() < video_frame->PlaneOffset(plane) +
990                             plane_height * video_frame->Stride(plane)) {
991      return false;
992    }
993  }
994
995  return true;
996}
997
998#if !defined(NDEBUG)
999void CdmAdapter::LogToConsole(const pp::Var& value) {
1000  PP_DCHECK(IsMainThread());
1001  const PPB_Console* console = reinterpret_cast<const PPB_Console*>(
1002      pp::Module::Get()->GetBrowserInterface(PPB_CONSOLE_INTERFACE));
1003  console->Log(pp_instance(), PP_LOGLEVEL_LOG, value.pp_var());
1004}
1005#endif  // !defined(NDEBUG)
1006
1007void CdmAdapter::SendPlatformChallenge(
1008    const char* service_id, uint32_t service_id_length,
1009    const char* challenge, uint32_t challenge_length) {
1010#if defined(OS_CHROMEOS)
1011  pp::VarArrayBuffer challenge_var(challenge_length);
1012  uint8_t* var_data = static_cast<uint8_t*>(challenge_var.Map());
1013  memcpy(var_data, challenge, challenge_length);
1014
1015  std::string service_id_str(service_id, service_id_length);
1016
1017  linked_ptr<PepperPlatformChallengeResponse> response(
1018      new PepperPlatformChallengeResponse());
1019
1020  int32_t result = platform_verification_.ChallengePlatform(
1021      pp::Var(service_id_str),
1022      challenge_var,
1023      &response->signed_data,
1024      &response->signed_data_signature,
1025      &response->platform_key_certificate,
1026      callback_factory_.NewCallback(&CdmAdapter::SendPlatformChallengeDone,
1027                                    response));
1028  challenge_var.Unmap();
1029  if (result == PP_OK_COMPLETIONPENDING)
1030    return;
1031
1032  // Fall through on error and issue an empty OnPlatformChallengeResponse().
1033  PP_DCHECK(result != PP_OK);
1034#endif
1035
1036  cdm::PlatformChallengeResponse platform_challenge_response = {};
1037  cdm_->OnPlatformChallengeResponse(platform_challenge_response);
1038}
1039
1040void CdmAdapter::EnableOutputProtection(uint32_t desired_protection_mask) {
1041#if defined(OS_CHROMEOS)
1042  int32_t result = output_protection_.EnableProtection(
1043      desired_protection_mask, callback_factory_.NewCallback(
1044          &CdmAdapter::EnableProtectionDone));
1045
1046  // Errors are ignored since clients must call QueryOutputProtectionStatus() to
1047  // inspect the protection status on a regular basis.
1048
1049  if (result != PP_OK && result != PP_OK_COMPLETIONPENDING)
1050    CDM_DLOG() << __FUNCTION__ << " failed!";
1051#endif
1052}
1053
1054void CdmAdapter::QueryOutputProtectionStatus() {
1055#if defined(OS_CHROMEOS)
1056  PP_DCHECK(!query_output_protection_in_progress_);
1057
1058  output_link_mask_ = output_protection_mask_ = 0;
1059  const int32_t result = output_protection_.QueryStatus(
1060      &output_link_mask_,
1061      &output_protection_mask_,
1062      callback_factory_.NewCallback(
1063          &CdmAdapter::QueryOutputProtectionStatusDone));
1064  if (result == PP_OK_COMPLETIONPENDING) {
1065    query_output_protection_in_progress_ = true;
1066    ReportOutputProtectionQuery();
1067    return;
1068  }
1069
1070  // Fall through on error and issue an empty OnQueryOutputProtectionStatus().
1071  PP_DCHECK(result != PP_OK);
1072#endif
1073
1074  cdm_->OnQueryOutputProtectionStatus(0, 0);
1075}
1076
1077void CdmAdapter::OnDeferredInitializationDone(cdm::StreamType stream_type,
1078                                              cdm::Status decoder_status) {
1079  switch (stream_type) {
1080    case cdm::kStreamTypeAudio:
1081      PP_DCHECK(deferred_initialize_audio_decoder_);
1082      CallOnMain(
1083          callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
1084                                        PP_DECRYPTORSTREAMTYPE_AUDIO,
1085                                        deferred_audio_decoder_config_id_,
1086                                        decoder_status == cdm::kSuccess));
1087      deferred_initialize_audio_decoder_ = false;
1088      deferred_audio_decoder_config_id_ = 0;
1089      break;
1090    case cdm::kStreamTypeVideo:
1091      PP_DCHECK(deferred_initialize_video_decoder_);
1092      CallOnMain(
1093          callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
1094                                        PP_DECRYPTORSTREAMTYPE_VIDEO,
1095                                        deferred_video_decoder_config_id_,
1096                                        decoder_status == cdm::kSuccess));
1097      deferred_initialize_video_decoder_ = false;
1098      deferred_video_decoder_config_id_ = 0;
1099      break;
1100  }
1101}
1102
1103// The CDM owns the returned object and must call FileIO::Close() to release it.
1104cdm::FileIO* CdmAdapter::CreateFileIO(cdm::FileIOClient* client) {
1105  return new CdmFileIOImpl(client, pp_instance());
1106}
1107
1108#if defined(OS_CHROMEOS)
1109void CdmAdapter::ReportOutputProtectionUMA(OutputProtectionStatus status) {
1110  pp::UMAPrivate uma_interface_(this);
1111  uma_interface_.HistogramEnumeration(
1112      "Media.EME.OutputProtection", status, OUTPUT_PROTECTION_MAX);
1113}
1114
1115void CdmAdapter::ReportOutputProtectionQuery() {
1116  if (uma_for_output_protection_query_reported_)
1117    return;
1118
1119  ReportOutputProtectionUMA(OUTPUT_PROTECTION_QUERIED);
1120  uma_for_output_protection_query_reported_ = true;
1121}
1122
1123void CdmAdapter::ReportOutputProtectionQueryResult() {
1124  if (uma_for_output_protection_positive_result_reported_)
1125    return;
1126
1127  // Report UMAs for output protection query result.
1128  uint32_t external_links = (output_link_mask_ & ~cdm::kLinkTypeInternal);
1129
1130  if (!external_links) {
1131    ReportOutputProtectionUMA(OUTPUT_PROTECTION_NO_EXTERNAL_LINK);
1132    uma_for_output_protection_positive_result_reported_ = true;
1133    return;
1134  }
1135
1136  const uint32_t kProtectableLinks =
1137      cdm::kLinkTypeHDMI | cdm::kLinkTypeDVI | cdm::kLinkTypeDisplayPort;
1138  bool is_unprotectable_link_connected = external_links & ~kProtectableLinks;
1139  bool is_hdcp_enabled_on_all_protectable_links =
1140      output_protection_mask_ & cdm::kProtectionHDCP;
1141
1142  if (!is_unprotectable_link_connected &&
1143      is_hdcp_enabled_on_all_protectable_links) {
1144    ReportOutputProtectionUMA(
1145        OUTPUT_PROTECTION_ALL_EXTERNAL_LINKS_PROTECTED);
1146    uma_for_output_protection_positive_result_reported_ = true;
1147    return;
1148  }
1149
1150  // Do not report a negative result because it could be a false negative.
1151  // Instead, we will calculate number of negatives using the total number of
1152  // queries and success results.
1153}
1154
1155void CdmAdapter::SendPlatformChallengeDone(
1156    int32_t result,
1157    const linked_ptr<PepperPlatformChallengeResponse>& response) {
1158  if (result != PP_OK) {
1159    CDM_DLOG() << __FUNCTION__ << ": Platform challenge failed!";
1160    cdm::PlatformChallengeResponse platform_challenge_response = {};
1161    cdm_->OnPlatformChallengeResponse(platform_challenge_response);
1162    return;
1163  }
1164
1165  pp::VarArrayBuffer signed_data_var(response->signed_data);
1166  pp::VarArrayBuffer signed_data_signature_var(response->signed_data_signature);
1167  std::string platform_key_certificate_string =
1168      response->platform_key_certificate.AsString();
1169
1170  cdm::PlatformChallengeResponse platform_challenge_response = {
1171      static_cast<uint8_t*>(signed_data_var.Map()),
1172      signed_data_var.ByteLength(),
1173      static_cast<uint8_t*>(signed_data_signature_var.Map()),
1174      signed_data_signature_var.ByteLength(),
1175      reinterpret_cast<const uint8_t*>(platform_key_certificate_string.data()),
1176      static_cast<uint32_t>(platform_key_certificate_string.length())};
1177  cdm_->OnPlatformChallengeResponse(platform_challenge_response);
1178
1179  signed_data_var.Unmap();
1180  signed_data_signature_var.Unmap();
1181}
1182
1183void CdmAdapter::EnableProtectionDone(int32_t result) {
1184  // Does nothing since clients must call QueryOutputProtectionStatus() to
1185  // inspect the protection status on a regular basis.
1186  CDM_DLOG() << __FUNCTION__ << " : " << result;
1187}
1188
1189void CdmAdapter::QueryOutputProtectionStatusDone(int32_t result) {
1190  PP_DCHECK(query_output_protection_in_progress_);
1191  query_output_protection_in_progress_ = false;
1192
1193  // Return a protection status of none on error.
1194  if (result != PP_OK)
1195    output_link_mask_ = output_protection_mask_ = 0;
1196  else
1197    ReportOutputProtectionQueryResult();
1198
1199  cdm_->OnQueryOutputProtectionStatus(output_link_mask_,
1200                                      output_protection_mask_);
1201}
1202#endif
1203
1204CdmAdapter::SessionError::SessionError(cdm::Error error,
1205                                       uint32_t system_code,
1206                                       std::string error_description)
1207    : error(error),
1208      system_code(system_code),
1209      error_description(error_description) {
1210}
1211
1212void* GetCdmHost(int host_interface_version, void* user_data) {
1213  if (!host_interface_version || !user_data)
1214    return NULL;
1215
1216  COMPILE_ASSERT(
1217      cdm::ContentDecryptionModule::Host::kVersion == cdm::Host_5::kVersion,
1218      update_code_below);
1219
1220  // Ensure IsSupportedCdmHostVersion matches implementation of this function.
1221  // Always update this DCHECK when updating this function.
1222  // If this check fails, update this function and DCHECK or update
1223  // IsSupportedCdmHostVersion.
1224
1225  PP_DCHECK(
1226      // Future version is not supported.
1227      !IsSupportedCdmHostVersion(cdm::Host_5::kVersion + 1) &&
1228      // Current version is supported.
1229      IsSupportedCdmHostVersion(cdm::Host_5::kVersion) &&
1230      // Include all previous supported versions (if any) here.
1231      IsSupportedCdmHostVersion(cdm::Host_4::kVersion) &&
1232      // One older than the oldest supported version is not supported.
1233      !IsSupportedCdmHostVersion(cdm::Host_4::kVersion - 1));
1234  PP_DCHECK(IsSupportedCdmHostVersion(host_interface_version));
1235
1236  CdmAdapter* cdm_adapter = static_cast<CdmAdapter*>(user_data);
1237  CDM_DLOG() << "Create CDM Host with version " << host_interface_version;
1238  switch (host_interface_version) {
1239    case cdm::Host_4::kVersion:
1240      return static_cast<cdm::Host_4*>(cdm_adapter);
1241    case cdm::Host_5::kVersion:
1242      return static_cast<cdm::Host_5*>(cdm_adapter);
1243    default:
1244      PP_NOTREACHED();
1245      return NULL;
1246  }
1247}
1248
1249// This object is the global object representing this plugin library as long
1250// as it is loaded.
1251class CdmAdapterModule : public pp::Module {
1252 public:
1253  CdmAdapterModule() : pp::Module() {
1254    // This function blocks the renderer thread (PluginInstance::Initialize()).
1255    // Move this call to other places if this may be a concern in the future.
1256    INITIALIZE_CDM_MODULE();
1257  }
1258  virtual ~CdmAdapterModule() {
1259    DeinitializeCdmModule();
1260  }
1261
1262  virtual pp::Instance* CreateInstance(PP_Instance instance) {
1263    return new CdmAdapter(instance, this);
1264  }
1265
1266 private:
1267  CdmFileIOImpl::ResourceTracker cdm_file_io_impl_resource_tracker;
1268};
1269
1270}  // namespace media
1271
1272namespace pp {
1273
1274// Factory function for your specialization of the Module object.
1275Module* CreateModule() {
1276  return new media::CdmAdapterModule();
1277}
1278
1279}  // namespace pp
1280