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_helpers.h"
8 #include "media/cdm/ppapi/cdm_logging.h"
9 #include "media/cdm/ppapi/supported_cdm_versions.h"
10 #include "ppapi/c/ppb_console.h"
11
12 #if defined(CHECK_DOCUMENT_URL)
13 #include "ppapi/cpp/dev/url_util_dev.h"
14 #include "ppapi/cpp/instance_handle.h"
15 #endif // defined(CHECK_DOCUMENT_URL)
16
17 namespace {
18
19 #if !defined(NDEBUG)
20 #define DLOG_TO_CONSOLE(message) LogToConsole(message);
21 #else
22 #define DLOG_TO_CONSOLE(message) (void)(message);
23 #endif
24
IsMainThread()25 bool IsMainThread() {
26 return pp::Module::Get()->core()->IsMainThread();
27 }
28
29 // Posts a task to run |cb| on the main thread. The task is posted even if the
30 // current thread is the main thread.
PostOnMain(pp::CompletionCallback cb)31 void PostOnMain(pp::CompletionCallback cb) {
32 pp::Module::Get()->core()->CallOnMainThread(0, cb, PP_OK);
33 }
34
35 // Ensures |cb| is called on the main thread, either because the current thread
36 // is the main thread or by posting it to the main thread.
CallOnMain(pp::CompletionCallback cb)37 void CallOnMain(pp::CompletionCallback cb) {
38 // TODO(tomfinegan): This is only necessary because PPAPI doesn't allow calls
39 // off the main thread yet. Remove this once the change lands.
40 if (IsMainThread())
41 cb.Run(PP_OK);
42 else
43 PostOnMain(cb);
44 }
45
46 // Configures a cdm::InputBuffer. |subsamples| must exist as long as
47 // |input_buffer| is in use.
ConfigureInputBuffer(const pp::Buffer_Dev & encrypted_buffer,const PP_EncryptedBlockInfo & encrypted_block_info,std::vector<cdm::SubsampleEntry> * subsamples,cdm::InputBuffer * input_buffer)48 void ConfigureInputBuffer(
49 const pp::Buffer_Dev& encrypted_buffer,
50 const PP_EncryptedBlockInfo& encrypted_block_info,
51 std::vector<cdm::SubsampleEntry>* subsamples,
52 cdm::InputBuffer* input_buffer) {
53 PP_DCHECK(subsamples);
54 PP_DCHECK(!encrypted_buffer.is_null());
55
56 input_buffer->data = static_cast<uint8_t*>(encrypted_buffer.data());
57 input_buffer->data_size = encrypted_block_info.data_size;
58 PP_DCHECK(encrypted_buffer.size() >= input_buffer->data_size);
59 input_buffer->data_offset = encrypted_block_info.data_offset;
60
61 PP_DCHECK(encrypted_block_info.key_id_size <=
62 arraysize(encrypted_block_info.key_id));
63 input_buffer->key_id_size = encrypted_block_info.key_id_size;
64 input_buffer->key_id = input_buffer->key_id_size > 0 ?
65 encrypted_block_info.key_id : NULL;
66
67 PP_DCHECK(encrypted_block_info.iv_size <= arraysize(encrypted_block_info.iv));
68 input_buffer->iv_size = encrypted_block_info.iv_size;
69 input_buffer->iv = encrypted_block_info.iv_size > 0 ?
70 encrypted_block_info.iv : NULL;
71
72 input_buffer->num_subsamples = encrypted_block_info.num_subsamples;
73 if (encrypted_block_info.num_subsamples > 0) {
74 subsamples->reserve(encrypted_block_info.num_subsamples);
75
76 for (uint32_t i = 0; i < encrypted_block_info.num_subsamples; ++i) {
77 subsamples->push_back(cdm::SubsampleEntry(
78 encrypted_block_info.subsamples[i].clear_bytes,
79 encrypted_block_info.subsamples[i].cipher_bytes));
80 }
81
82 input_buffer->subsamples = &(*subsamples)[0];
83 }
84
85 input_buffer->timestamp = encrypted_block_info.tracking_info.timestamp;
86 }
87
CdmStatusToPpDecryptResult(cdm::Status status)88 PP_DecryptResult CdmStatusToPpDecryptResult(cdm::Status status) {
89 switch (status) {
90 case cdm::kSuccess:
91 return PP_DECRYPTRESULT_SUCCESS;
92 case cdm::kNoKey:
93 return PP_DECRYPTRESULT_DECRYPT_NOKEY;
94 case cdm::kNeedMoreData:
95 return PP_DECRYPTRESULT_NEEDMOREDATA;
96 case cdm::kDecryptError:
97 return PP_DECRYPTRESULT_DECRYPT_ERROR;
98 case cdm::kDecodeError:
99 return PP_DECRYPTRESULT_DECODE_ERROR;
100 default:
101 PP_NOTREACHED();
102 return PP_DECRYPTRESULT_DECODE_ERROR;
103 }
104 }
105
CdmVideoFormatToPpDecryptedFrameFormat(cdm::VideoFormat format)106 PP_DecryptedFrameFormat CdmVideoFormatToPpDecryptedFrameFormat(
107 cdm::VideoFormat format) {
108 switch (format) {
109 case cdm::kYv12:
110 return PP_DECRYPTEDFRAMEFORMAT_YV12;
111 case cdm::kI420:
112 return PP_DECRYPTEDFRAMEFORMAT_I420;
113 default:
114 return PP_DECRYPTEDFRAMEFORMAT_UNKNOWN;
115 }
116 }
117
CdmAudioFormatToPpDecryptedSampleFormat(cdm::AudioFormat format)118 PP_DecryptedSampleFormat CdmAudioFormatToPpDecryptedSampleFormat(
119 cdm::AudioFormat format) {
120 switch (format) {
121 case cdm::kAudioFormatU8:
122 return PP_DECRYPTEDSAMPLEFORMAT_U8;
123 case cdm::kAudioFormatS16:
124 return PP_DECRYPTEDSAMPLEFORMAT_S16;
125 case cdm::kAudioFormatS32:
126 return PP_DECRYPTEDSAMPLEFORMAT_S32;
127 case cdm::kAudioFormatF32:
128 return PP_DECRYPTEDSAMPLEFORMAT_F32;
129 case cdm::kAudioFormatPlanarS16:
130 return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_S16;
131 case cdm::kAudioFormatPlanarF32:
132 return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_F32;
133 default:
134 return PP_DECRYPTEDSAMPLEFORMAT_UNKNOWN;
135 }
136 }
137
PpAudioCodecToCdmAudioCodec(PP_AudioCodec codec)138 cdm::AudioDecoderConfig::AudioCodec PpAudioCodecToCdmAudioCodec(
139 PP_AudioCodec codec) {
140 switch (codec) {
141 case PP_AUDIOCODEC_VORBIS:
142 return cdm::AudioDecoderConfig::kCodecVorbis;
143 case PP_AUDIOCODEC_AAC:
144 return cdm::AudioDecoderConfig::kCodecAac;
145 default:
146 return cdm::AudioDecoderConfig::kUnknownAudioCodec;
147 }
148 }
149
PpVideoCodecToCdmVideoCodec(PP_VideoCodec codec)150 cdm::VideoDecoderConfig::VideoCodec PpVideoCodecToCdmVideoCodec(
151 PP_VideoCodec codec) {
152 switch (codec) {
153 case PP_VIDEOCODEC_VP8:
154 return cdm::VideoDecoderConfig::kCodecVp8;
155 case PP_VIDEOCODEC_H264:
156 return cdm::VideoDecoderConfig::kCodecH264;
157 default:
158 return cdm::VideoDecoderConfig::kUnknownVideoCodec;
159 }
160 }
161
PpVCProfileToCdmVCProfile(PP_VideoCodecProfile profile)162 cdm::VideoDecoderConfig::VideoCodecProfile PpVCProfileToCdmVCProfile(
163 PP_VideoCodecProfile profile) {
164 switch (profile) {
165 case PP_VIDEOCODECPROFILE_VP8_MAIN:
166 return cdm::VideoDecoderConfig::kVp8ProfileMain;
167 case PP_VIDEOCODECPROFILE_H264_BASELINE:
168 return cdm::VideoDecoderConfig::kH264ProfileBaseline;
169 case PP_VIDEOCODECPROFILE_H264_MAIN:
170 return cdm::VideoDecoderConfig::kH264ProfileMain;
171 case PP_VIDEOCODECPROFILE_H264_EXTENDED:
172 return cdm::VideoDecoderConfig::kH264ProfileExtended;
173 case PP_VIDEOCODECPROFILE_H264_HIGH:
174 return cdm::VideoDecoderConfig::kH264ProfileHigh;
175 case PP_VIDEOCODECPROFILE_H264_HIGH_10:
176 return cdm::VideoDecoderConfig::kH264ProfileHigh10;
177 case PP_VIDEOCODECPROFILE_H264_HIGH_422:
178 return cdm::VideoDecoderConfig::kH264ProfileHigh422;
179 case PP_VIDEOCODECPROFILE_H264_HIGH_444_PREDICTIVE:
180 return cdm::VideoDecoderConfig::kH264ProfileHigh444Predictive;
181 default:
182 return cdm::VideoDecoderConfig::kUnknownVideoCodecProfile;
183 }
184 }
185
PpDecryptedFrameFormatToCdmVideoFormat(PP_DecryptedFrameFormat format)186 cdm::VideoFormat PpDecryptedFrameFormatToCdmVideoFormat(
187 PP_DecryptedFrameFormat format) {
188 switch (format) {
189 case PP_DECRYPTEDFRAMEFORMAT_YV12:
190 return cdm::kYv12;
191 case PP_DECRYPTEDFRAMEFORMAT_I420:
192 return cdm::kI420;
193 default:
194 return cdm::kUnknownVideoFormat;
195 }
196 }
197
PpDecryptorStreamTypeToCdmStreamType(PP_DecryptorStreamType stream_type)198 cdm::StreamType PpDecryptorStreamTypeToCdmStreamType(
199 PP_DecryptorStreamType stream_type) {
200 switch (stream_type) {
201 case PP_DECRYPTORSTREAMTYPE_AUDIO:
202 return cdm::kStreamTypeAudio;
203 case PP_DECRYPTORSTREAMTYPE_VIDEO:
204 return cdm::kStreamTypeVideo;
205 }
206
207 PP_NOTREACHED();
208 return cdm::kStreamTypeVideo;
209 }
210
211 } // namespace
212
213 namespace media {
214
CdmAdapter(PP_Instance instance,pp::Module * module)215 CdmAdapter::CdmAdapter(PP_Instance instance, pp::Module* module)
216 : pp::Instance(instance),
217 pp::ContentDecryptor_Private(this),
218 #if defined(OS_CHROMEOS)
219 output_protection_(this),
220 platform_verification_(this),
221 challenge_in_progress_(false),
222 output_link_mask_(0),
223 output_protection_mask_(0),
224 query_output_protection_in_progress_(false),
225 #endif
226 allocator_(this),
227 cdm_(NULL),
228 deferred_initialize_audio_decoder_(false),
229 deferred_audio_decoder_config_id_(0),
230 deferred_initialize_video_decoder_(false),
231 deferred_video_decoder_config_id_(0) {
232 callback_factory_.Initialize(this);
233 }
234
~CdmAdapter()235 CdmAdapter::~CdmAdapter() {}
236
CreateCdmInstance(const std::string & key_system)237 bool CdmAdapter::CreateCdmInstance(const std::string& key_system) {
238 PP_DCHECK(!cdm_);
239 cdm_ = make_linked_ptr(CdmWrapper::Create(
240 key_system.data(), key_system.size(), GetCdmHost, this));
241 bool success = cdm_ != NULL;
242
243 const std::string message = "CDM instance for " + key_system +
244 (success ? "" : " could not be") + " created.";
245 DLOG_TO_CONSOLE(message);
246 CDM_DLOG() << message;
247
248 return success;
249 }
250
251 // No KeyErrors should be reported in this function because they cannot be
252 // bubbled up in the WD EME API. Those errors will be reported during session
253 // creation (CreateSession).
Initialize(const std::string & key_system)254 void CdmAdapter::Initialize(const std::string& key_system) {
255 PP_DCHECK(!key_system.empty());
256 PP_DCHECK(key_system_.empty() || (key_system_ == key_system && cdm_));
257
258 if (!cdm_ && !CreateCdmInstance(key_system))
259 return;
260
261 PP_DCHECK(cdm_);
262 key_system_ = key_system;
263 }
264
CreateSession(uint32_t session_id,const std::string & type,pp::VarArrayBuffer init_data)265 void CdmAdapter::CreateSession(uint32_t session_id,
266 const std::string& type,
267 pp::VarArrayBuffer init_data) {
268 // Initialize() doesn't report an error, so CreateSession() can be called
269 // even if Initialize() failed.
270 if (!cdm_) {
271 OnSessionError(session_id, cdm::kUnknownError, 0);
272 return;
273 }
274
275 #if defined(CHECK_DOCUMENT_URL)
276 PP_URLComponents_Dev url_components = {};
277 const pp::URLUtil_Dev* url_util = pp::URLUtil_Dev::Get();
278 if (!url_util) {
279 OnSessionError(session_id, cdm::kUnknownError, 0);
280 return;
281 }
282 pp::Var href = url_util->GetDocumentURL(
283 pp::InstanceHandle(pp_instance()), &url_components);
284 PP_DCHECK(href.is_string());
285 PP_DCHECK(!href.AsString().empty());
286 PP_DCHECK(url_components.host.begin);
287 PP_DCHECK(0 < url_components.host.len);
288 #endif // defined(CHECK_DOCUMENT_URL)
289
290 cdm_->CreateSession(session_id,
291 type.data(),
292 type.size(),
293 static_cast<const uint8_t*>(init_data.Map()),
294 init_data.ByteLength());
295 }
296
UpdateSession(uint32_t session_id,pp::VarArrayBuffer response)297 void CdmAdapter::UpdateSession(uint32_t session_id,
298 pp::VarArrayBuffer response) {
299 // TODO(jrummell): In EME WD, AddKey() can only be called on valid sessions.
300 // We should be able to DCHECK(cdm_) when addressing http://crbug.com/249976.
301 if (!cdm_) {
302 OnSessionError(session_id, cdm::kUnknownError, 0);
303 return;
304 }
305
306 const uint8_t* response_ptr = static_cast<const uint8_t*>(response.Map());
307 const uint32_t response_size = response.ByteLength();
308
309 if (!response_ptr || response_size <= 0) {
310 OnSessionError(session_id, cdm::kUnknownError, 0);
311 return;
312 }
313 CdmWrapper::Result result =
314 cdm_->UpdateSession(session_id, response_ptr, response_size);
315 switch (result) {
316 case CdmWrapper::NO_ACTION:
317 break;
318 case CdmWrapper::CALL_KEY_ADDED:
319 OnSessionReady(session_id);
320 break;
321 case CdmWrapper::CALL_KEY_ERROR:
322 OnSessionError(session_id, cdm::kUnknownError, 0);
323 break;
324 }
325 }
326
ReleaseSession(uint32_t session_id)327 void CdmAdapter::ReleaseSession(uint32_t session_id) {
328 // TODO(jrummell): In EME WD, AddKey() can only be called on valid sessions.
329 // We should be able to DCHECK(cdm_) when addressing http://crbug.com/249976.
330 if (!cdm_) {
331 OnSessionError(session_id, cdm::kUnknownError, 0);
332 return;
333 }
334
335 CdmWrapper::Result result = cdm_->ReleaseSession(session_id);
336 switch (result) {
337 case CdmWrapper::NO_ACTION:
338 break;
339 case CdmWrapper::CALL_KEY_ADDED:
340 PP_NOTREACHED();
341 break;
342 case CdmWrapper::CALL_KEY_ERROR:
343 OnSessionError(session_id, cdm::kUnknownError, 0);
344 break;
345 }
346 }
347
348 // Note: In the following decryption/decoding related functions, errors are NOT
349 // reported via KeyError, but are reported via corresponding PPB calls.
350
Decrypt(pp::Buffer_Dev encrypted_buffer,const PP_EncryptedBlockInfo & encrypted_block_info)351 void CdmAdapter::Decrypt(pp::Buffer_Dev encrypted_buffer,
352 const PP_EncryptedBlockInfo& encrypted_block_info) {
353 PP_DCHECK(!encrypted_buffer.is_null());
354
355 // Release a buffer that the caller indicated it is finished with.
356 allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
357
358 cdm::Status status = cdm::kDecryptError;
359 LinkedDecryptedBlock decrypted_block(new DecryptedBlockImpl());
360
361 if (cdm_) {
362 cdm::InputBuffer input_buffer;
363 std::vector<cdm::SubsampleEntry> subsamples;
364 ConfigureInputBuffer(encrypted_buffer, encrypted_block_info, &subsamples,
365 &input_buffer);
366 status = cdm_->Decrypt(input_buffer, decrypted_block.get());
367 PP_DCHECK(status != cdm::kSuccess ||
368 (decrypted_block->DecryptedBuffer() &&
369 decrypted_block->DecryptedBuffer()->Size()));
370 }
371
372 CallOnMain(callback_factory_.NewCallback(
373 &CdmAdapter::DeliverBlock,
374 status,
375 decrypted_block,
376 encrypted_block_info.tracking_info));
377 }
378
InitializeAudioDecoder(const PP_AudioDecoderConfig & decoder_config,pp::Buffer_Dev extra_data_buffer)379 void CdmAdapter::InitializeAudioDecoder(
380 const PP_AudioDecoderConfig& decoder_config,
381 pp::Buffer_Dev extra_data_buffer) {
382 PP_DCHECK(!deferred_initialize_audio_decoder_);
383 PP_DCHECK(deferred_audio_decoder_config_id_ == 0);
384 cdm::Status status = cdm::kSessionError;
385 if (cdm_) {
386 cdm::AudioDecoderConfig cdm_decoder_config;
387 cdm_decoder_config.codec =
388 PpAudioCodecToCdmAudioCodec(decoder_config.codec);
389 cdm_decoder_config.channel_count = decoder_config.channel_count;
390 cdm_decoder_config.bits_per_channel = decoder_config.bits_per_channel;
391 cdm_decoder_config.samples_per_second = decoder_config.samples_per_second;
392 cdm_decoder_config.extra_data =
393 static_cast<uint8_t*>(extra_data_buffer.data());
394 cdm_decoder_config.extra_data_size = extra_data_buffer.size();
395 status = cdm_->InitializeAudioDecoder(cdm_decoder_config);
396 }
397
398 if (status == cdm::kDeferredInitialization) {
399 deferred_initialize_audio_decoder_ = true;
400 deferred_audio_decoder_config_id_ = decoder_config.request_id;
401 return;
402 }
403
404 CallOnMain(callback_factory_.NewCallback(
405 &CdmAdapter::DecoderInitializeDone,
406 PP_DECRYPTORSTREAMTYPE_AUDIO,
407 decoder_config.request_id,
408 status == cdm::kSuccess));
409 }
410
InitializeVideoDecoder(const PP_VideoDecoderConfig & decoder_config,pp::Buffer_Dev extra_data_buffer)411 void CdmAdapter::InitializeVideoDecoder(
412 const PP_VideoDecoderConfig& decoder_config,
413 pp::Buffer_Dev extra_data_buffer) {
414 PP_DCHECK(!deferred_initialize_video_decoder_);
415 PP_DCHECK(deferred_video_decoder_config_id_ == 0);
416 cdm::Status status = cdm::kSessionError;
417 if (cdm_) {
418 cdm::VideoDecoderConfig cdm_decoder_config;
419 cdm_decoder_config.codec =
420 PpVideoCodecToCdmVideoCodec(decoder_config.codec);
421 cdm_decoder_config.profile =
422 PpVCProfileToCdmVCProfile(decoder_config.profile);
423 cdm_decoder_config.format =
424 PpDecryptedFrameFormatToCdmVideoFormat(decoder_config.format);
425 cdm_decoder_config.coded_size.width = decoder_config.width;
426 cdm_decoder_config.coded_size.height = decoder_config.height;
427 cdm_decoder_config.extra_data =
428 static_cast<uint8_t*>(extra_data_buffer.data());
429 cdm_decoder_config.extra_data_size = extra_data_buffer.size();
430 status = cdm_->InitializeVideoDecoder(cdm_decoder_config);
431 }
432
433 if (status == cdm::kDeferredInitialization) {
434 deferred_initialize_video_decoder_ = true;
435 deferred_video_decoder_config_id_ = decoder_config.request_id;
436 return;
437 }
438
439 CallOnMain(callback_factory_.NewCallback(
440 &CdmAdapter::DecoderInitializeDone,
441 PP_DECRYPTORSTREAMTYPE_VIDEO,
442 decoder_config.request_id,
443 status == cdm::kSuccess));
444 }
445
DeinitializeDecoder(PP_DecryptorStreamType decoder_type,uint32_t request_id)446 void CdmAdapter::DeinitializeDecoder(PP_DecryptorStreamType decoder_type,
447 uint32_t request_id) {
448 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
449 if (cdm_) {
450 cdm_->DeinitializeDecoder(
451 PpDecryptorStreamTypeToCdmStreamType(decoder_type));
452 }
453
454 CallOnMain(callback_factory_.NewCallback(
455 &CdmAdapter::DecoderDeinitializeDone,
456 decoder_type,
457 request_id));
458 }
459
ResetDecoder(PP_DecryptorStreamType decoder_type,uint32_t request_id)460 void CdmAdapter::ResetDecoder(PP_DecryptorStreamType decoder_type,
461 uint32_t request_id) {
462 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
463 if (cdm_)
464 cdm_->ResetDecoder(PpDecryptorStreamTypeToCdmStreamType(decoder_type));
465
466 CallOnMain(callback_factory_.NewCallback(&CdmAdapter::DecoderResetDone,
467 decoder_type,
468 request_id));
469 }
470
DecryptAndDecode(PP_DecryptorStreamType decoder_type,pp::Buffer_Dev encrypted_buffer,const PP_EncryptedBlockInfo & encrypted_block_info)471 void CdmAdapter::DecryptAndDecode(
472 PP_DecryptorStreamType decoder_type,
473 pp::Buffer_Dev encrypted_buffer,
474 const PP_EncryptedBlockInfo& encrypted_block_info) {
475 PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
476 // Release a buffer that the caller indicated it is finished with.
477 allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
478
479 cdm::InputBuffer input_buffer;
480 std::vector<cdm::SubsampleEntry> subsamples;
481 if (cdm_ && !encrypted_buffer.is_null()) {
482 ConfigureInputBuffer(encrypted_buffer,
483 encrypted_block_info,
484 &subsamples,
485 &input_buffer);
486 }
487
488 cdm::Status status = cdm::kDecodeError;
489
490 switch (decoder_type) {
491 case PP_DECRYPTORSTREAMTYPE_VIDEO: {
492 LinkedVideoFrame video_frame(new VideoFrameImpl());
493 if (cdm_)
494 status = cdm_->DecryptAndDecodeFrame(input_buffer, video_frame.get());
495 CallOnMain(callback_factory_.NewCallback(
496 &CdmAdapter::DeliverFrame,
497 status,
498 video_frame,
499 encrypted_block_info.tracking_info));
500 return;
501 }
502
503 case PP_DECRYPTORSTREAMTYPE_AUDIO: {
504 LinkedAudioFrames audio_frames(new AudioFramesImpl());
505 if (cdm_) {
506 status = cdm_->DecryptAndDecodeSamples(input_buffer,
507 audio_frames.get());
508 }
509 CallOnMain(callback_factory_.NewCallback(
510 &CdmAdapter::DeliverSamples,
511 status,
512 audio_frames,
513 encrypted_block_info.tracking_info));
514 return;
515 }
516
517 default:
518 PP_NOTREACHED();
519 return;
520 }
521 }
522
Allocate(uint32_t capacity)523 cdm::Buffer* CdmAdapter::Allocate(uint32_t capacity) {
524 return allocator_.Allocate(capacity);
525 }
526
SetTimer(int64_t delay_ms,void * context)527 void CdmAdapter::SetTimer(int64_t delay_ms, void* context) {
528 // NOTE: doesn't really need to run on the main thread; could just as well run
529 // on a helper thread if |cdm_| were thread-friendly and care was taken. We
530 // only use CallOnMainThread() here to get delayed-execution behavior.
531 pp::Module::Get()->core()->CallOnMainThread(
532 delay_ms,
533 callback_factory_.NewCallback(&CdmAdapter::TimerExpired, context),
534 PP_OK);
535 }
536
TimerExpired(int32_t result,void * context)537 void CdmAdapter::TimerExpired(int32_t result, void* context) {
538 PP_DCHECK(result == PP_OK);
539 cdm_->TimerExpired(context);
540 }
541
GetCurrentWallTimeInSeconds()542 double CdmAdapter::GetCurrentWallTimeInSeconds() {
543 return pp::Module::Get()->core()->GetTime();
544 }
545
SendKeyMessage(const char * session_id,uint32_t session_id_length,const char * message,uint32_t message_length,const char * default_url,uint32_t default_url_length)546 void CdmAdapter::SendKeyMessage(
547 const char* session_id, uint32_t session_id_length,
548 const char* message, uint32_t message_length,
549 const char* default_url, uint32_t default_url_length) {
550 PP_DCHECK(!key_system_.empty());
551
552 std::string session_id_str(session_id, session_id_length);
553 PP_DCHECK(!session_id_str.empty());
554 uint32_t session_reference_id = cdm_->LookupSessionId(session_id_str);
555
556 OnSessionCreated(session_reference_id, session_id, session_id_length);
557 OnSessionMessage(session_reference_id,
558 message, message_length,
559 default_url, default_url_length);
560 }
561
SendKeyError(const char * session_id,uint32_t session_id_length,cdm::MediaKeyError error_code,uint32_t system_code)562 void CdmAdapter::SendKeyError(const char* session_id,
563 uint32_t session_id_length,
564 cdm::MediaKeyError error_code,
565 uint32_t system_code) {
566 std::string session_id_str(session_id, session_id_length);
567 uint32_t session_reference_id = cdm_->LookupSessionId(session_id_str);
568 OnSessionError(session_reference_id, error_code, system_code);
569 }
570
GetPrivateData(int32_t * instance,GetPrivateInterface * get_interface)571 void CdmAdapter::GetPrivateData(int32_t* instance,
572 GetPrivateInterface* get_interface) {
573 *instance = pp_instance();
574 *get_interface = pp::Module::Get()->get_browser_interface();
575 }
576
OnSessionCreated(uint32_t session_id,const char * web_session_id,uint32_t web_session_id_length)577 void CdmAdapter::OnSessionCreated(uint32_t session_id,
578 const char* web_session_id,
579 uint32_t web_session_id_length) {
580 PostOnMain(callback_factory_.NewCallback(
581 &CdmAdapter::SendSessionCreatedInternal,
582 session_id,
583 std::string(web_session_id, web_session_id_length)));
584 }
585
OnSessionMessage(uint32_t session_id,const char * message,uint32_t message_length,const char * destination_url,uint32_t destination_url_length)586 void CdmAdapter::OnSessionMessage(uint32_t session_id,
587 const char* message,
588 uint32_t message_length,
589 const char* destination_url,
590 uint32_t destination_url_length) {
591 PostOnMain(callback_factory_.NewCallback(
592 &CdmAdapter::SendSessionMessageInternal,
593 session_id,
594 std::vector<uint8>(message, message + message_length),
595 std::string(destination_url, destination_url_length)));
596 }
597
OnSessionReady(uint32_t session_id)598 void CdmAdapter::OnSessionReady(uint32_t session_id) {
599 PostOnMain(callback_factory_.NewCallback(
600 &CdmAdapter::SendSessionReadyInternal, session_id));
601 }
602
OnSessionClosed(uint32_t session_id)603 void CdmAdapter::OnSessionClosed(uint32_t session_id) {
604 PostOnMain(callback_factory_.NewCallback(
605 &CdmAdapter::SendSessionClosedInternal, session_id));
606 }
607
OnSessionError(uint32_t session_id,cdm::MediaKeyError error_code,uint32_t system_code)608 void CdmAdapter::OnSessionError(uint32_t session_id,
609 cdm::MediaKeyError error_code,
610 uint32_t system_code) {
611 PostOnMain(callback_factory_.NewCallback(
612 &CdmAdapter::SendSessionErrorInternal,
613 session_id,
614 error_code,
615 system_code));
616 }
617
SendSessionCreatedInternal(int32_t result,uint32_t session_id,const std::string & web_session_id)618 void CdmAdapter::SendSessionCreatedInternal(int32_t result,
619 uint32_t session_id,
620 const std::string& web_session_id) {
621 PP_DCHECK(result == PP_OK);
622 pp::ContentDecryptor_Private::SessionCreated(session_id, web_session_id);
623 }
624
SendSessionMessageInternal(int32_t result,uint32_t session_id,const std::vector<uint8> & message,const std::string & default_url)625 void CdmAdapter::SendSessionMessageInternal(int32_t result,
626 uint32_t session_id,
627 const std::vector<uint8>& message,
628 const std::string& default_url) {
629 PP_DCHECK(result == PP_OK);
630
631 pp::VarArrayBuffer message_array_buffer(message.size());
632 if (message.size() > 0) {
633 memcpy(message_array_buffer.Map(), message.data(), message.size());
634 }
635
636 pp::ContentDecryptor_Private::SessionMessage(
637 session_id, message_array_buffer, default_url);
638 }
639
SendSessionReadyInternal(int32_t result,uint32_t session_id)640 void CdmAdapter::SendSessionReadyInternal(int32_t result, uint32_t session_id) {
641 PP_DCHECK(result == PP_OK);
642 pp::ContentDecryptor_Private::SessionReady(session_id);
643 }
644
SendSessionClosedInternal(int32_t result,uint32_t session_id)645 void CdmAdapter::SendSessionClosedInternal(int32_t result,
646 uint32_t session_id) {
647 PP_DCHECK(result == PP_OK);
648 pp::ContentDecryptor_Private::SessionClosed(session_id);
649 }
650
SendSessionErrorInternal(int32_t result,uint32_t session_id,cdm::MediaKeyError error_code,uint32_t system_code)651 void CdmAdapter::SendSessionErrorInternal(int32_t result,
652 uint32_t session_id,
653 cdm::MediaKeyError error_code,
654 uint32_t system_code) {
655 PP_DCHECK(result == PP_OK);
656 pp::ContentDecryptor_Private::SessionError(
657 session_id, error_code, system_code);
658 }
659
DeliverBlock(int32_t result,const cdm::Status & status,const LinkedDecryptedBlock & decrypted_block,const PP_DecryptTrackingInfo & tracking_info)660 void CdmAdapter::DeliverBlock(int32_t result,
661 const cdm::Status& status,
662 const LinkedDecryptedBlock& decrypted_block,
663 const PP_DecryptTrackingInfo& tracking_info) {
664 PP_DCHECK(result == PP_OK);
665 PP_DecryptedBlockInfo decrypted_block_info;
666 decrypted_block_info.tracking_info = tracking_info;
667 decrypted_block_info.tracking_info.timestamp = decrypted_block->Timestamp();
668 decrypted_block_info.tracking_info.buffer_id = 0;
669 decrypted_block_info.data_size = 0;
670 decrypted_block_info.result = CdmStatusToPpDecryptResult(status);
671
672 pp::Buffer_Dev buffer;
673
674 if (decrypted_block_info.result == PP_DECRYPTRESULT_SUCCESS) {
675 PP_DCHECK(decrypted_block.get() && decrypted_block->DecryptedBuffer());
676 if (!decrypted_block.get() || !decrypted_block->DecryptedBuffer()) {
677 PP_NOTREACHED();
678 decrypted_block_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
679 } else {
680 PpbBuffer* ppb_buffer =
681 static_cast<PpbBuffer*>(decrypted_block->DecryptedBuffer());
682 buffer = ppb_buffer->buffer_dev();
683 decrypted_block_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
684 decrypted_block_info.data_size = ppb_buffer->Size();
685 }
686 }
687
688 pp::ContentDecryptor_Private::DeliverBlock(buffer, decrypted_block_info);
689 }
690
DecoderInitializeDone(int32_t result,PP_DecryptorStreamType decoder_type,uint32_t request_id,bool success)691 void CdmAdapter::DecoderInitializeDone(int32_t result,
692 PP_DecryptorStreamType decoder_type,
693 uint32_t request_id,
694 bool success) {
695 PP_DCHECK(result == PP_OK);
696 pp::ContentDecryptor_Private::DecoderInitializeDone(decoder_type,
697 request_id,
698 success);
699 }
700
DecoderDeinitializeDone(int32_t result,PP_DecryptorStreamType decoder_type,uint32_t request_id)701 void CdmAdapter::DecoderDeinitializeDone(int32_t result,
702 PP_DecryptorStreamType decoder_type,
703 uint32_t request_id) {
704 pp::ContentDecryptor_Private::DecoderDeinitializeDone(decoder_type,
705 request_id);
706 }
707
DecoderResetDone(int32_t result,PP_DecryptorStreamType decoder_type,uint32_t request_id)708 void CdmAdapter::DecoderResetDone(int32_t result,
709 PP_DecryptorStreamType decoder_type,
710 uint32_t request_id) {
711 pp::ContentDecryptor_Private::DecoderResetDone(decoder_type, request_id);
712 }
713
DeliverFrame(int32_t result,const cdm::Status & status,const LinkedVideoFrame & video_frame,const PP_DecryptTrackingInfo & tracking_info)714 void CdmAdapter::DeliverFrame(
715 int32_t result,
716 const cdm::Status& status,
717 const LinkedVideoFrame& video_frame,
718 const PP_DecryptTrackingInfo& tracking_info) {
719 PP_DCHECK(result == PP_OK);
720 PP_DecryptedFrameInfo decrypted_frame_info;
721 decrypted_frame_info.tracking_info.request_id = tracking_info.request_id;
722 decrypted_frame_info.tracking_info.buffer_id = 0;
723 decrypted_frame_info.result = CdmStatusToPpDecryptResult(status);
724
725 pp::Buffer_Dev buffer;
726
727 if (decrypted_frame_info.result == PP_DECRYPTRESULT_SUCCESS) {
728 if (!IsValidVideoFrame(video_frame)) {
729 PP_NOTREACHED();
730 decrypted_frame_info.result = PP_DECRYPTRESULT_DECODE_ERROR;
731 } else {
732 PpbBuffer* ppb_buffer =
733 static_cast<PpbBuffer*>(video_frame->FrameBuffer());
734
735 buffer = ppb_buffer->buffer_dev();
736
737 decrypted_frame_info.tracking_info.timestamp = video_frame->Timestamp();
738 decrypted_frame_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
739 decrypted_frame_info.format =
740 CdmVideoFormatToPpDecryptedFrameFormat(video_frame->Format());
741 decrypted_frame_info.width = video_frame->Size().width;
742 decrypted_frame_info.height = video_frame->Size().height;
743 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_Y] =
744 video_frame->PlaneOffset(cdm::VideoFrame::kYPlane);
745 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_U] =
746 video_frame->PlaneOffset(cdm::VideoFrame::kUPlane);
747 decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_V] =
748 video_frame->PlaneOffset(cdm::VideoFrame::kVPlane);
749 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_Y] =
750 video_frame->Stride(cdm::VideoFrame::kYPlane);
751 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_U] =
752 video_frame->Stride(cdm::VideoFrame::kUPlane);
753 decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_V] =
754 video_frame->Stride(cdm::VideoFrame::kVPlane);
755 }
756 }
757 pp::ContentDecryptor_Private::DeliverFrame(buffer, decrypted_frame_info);
758 }
759
DeliverSamples(int32_t result,const cdm::Status & status,const LinkedAudioFrames & audio_frames,const PP_DecryptTrackingInfo & tracking_info)760 void CdmAdapter::DeliverSamples(int32_t result,
761 const cdm::Status& status,
762 const LinkedAudioFrames& audio_frames,
763 const PP_DecryptTrackingInfo& tracking_info) {
764 PP_DCHECK(result == PP_OK);
765
766 PP_DecryptedSampleInfo decrypted_sample_info;
767 decrypted_sample_info.tracking_info = tracking_info;
768 decrypted_sample_info.tracking_info.timestamp = 0;
769 decrypted_sample_info.tracking_info.buffer_id = 0;
770 decrypted_sample_info.data_size = 0;
771 decrypted_sample_info.result = CdmStatusToPpDecryptResult(status);
772
773 pp::Buffer_Dev buffer;
774
775 if (decrypted_sample_info.result == PP_DECRYPTRESULT_SUCCESS) {
776 PP_DCHECK(audio_frames.get() && audio_frames->FrameBuffer());
777 if (!audio_frames.get() || !audio_frames->FrameBuffer()) {
778 PP_NOTREACHED();
779 decrypted_sample_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
780 } else {
781 PpbBuffer* ppb_buffer =
782 static_cast<PpbBuffer*>(audio_frames->FrameBuffer());
783 buffer = ppb_buffer->buffer_dev();
784 decrypted_sample_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
785 decrypted_sample_info.data_size = ppb_buffer->Size();
786 decrypted_sample_info.format =
787 CdmAudioFormatToPpDecryptedSampleFormat(audio_frames->Format());
788 }
789 }
790
791 pp::ContentDecryptor_Private::DeliverSamples(buffer, decrypted_sample_info);
792 }
793
IsValidVideoFrame(const LinkedVideoFrame & video_frame)794 bool CdmAdapter::IsValidVideoFrame(const LinkedVideoFrame& video_frame) {
795 if (!video_frame.get() ||
796 !video_frame->FrameBuffer() ||
797 (video_frame->Format() != cdm::kI420 &&
798 video_frame->Format() != cdm::kYv12)) {
799 CDM_DLOG() << "Invalid video frame!";
800 return false;
801 }
802
803 PpbBuffer* ppb_buffer = static_cast<PpbBuffer*>(video_frame->FrameBuffer());
804
805 for (uint32_t i = 0; i < cdm::VideoFrame::kMaxPlanes; ++i) {
806 int plane_height = (i == cdm::VideoFrame::kYPlane) ?
807 video_frame->Size().height : (video_frame->Size().height + 1) / 2;
808 cdm::VideoFrame::VideoPlane plane =
809 static_cast<cdm::VideoFrame::VideoPlane>(i);
810 if (ppb_buffer->Size() < video_frame->PlaneOffset(plane) +
811 plane_height * video_frame->Stride(plane)) {
812 return false;
813 }
814 }
815
816 return true;
817 }
818
819 #if !defined(NDEBUG)
LogToConsole(const pp::Var & value)820 void CdmAdapter::LogToConsole(const pp::Var& value) {
821 PP_DCHECK(IsMainThread());
822 const PPB_Console* console = reinterpret_cast<const PPB_Console*>(
823 pp::Module::Get()->GetBrowserInterface(PPB_CONSOLE_INTERFACE));
824 console->Log(pp_instance(), PP_LOGLEVEL_LOG, value.pp_var());
825 }
826 #endif // !defined(NDEBUG)
827
SendPlatformChallenge(const char * service_id,uint32_t service_id_length,const char * challenge,uint32_t challenge_length)828 void CdmAdapter::SendPlatformChallenge(
829 const char* service_id, uint32_t service_id_length,
830 const char* challenge, uint32_t challenge_length) {
831 #if defined(OS_CHROMEOS)
832 PP_DCHECK(!challenge_in_progress_);
833
834 // Ensure member variables set by the callback are in a clean state.
835 signed_data_output_ = pp::Var();
836 signed_data_signature_output_ = pp::Var();
837 platform_key_certificate_output_ = pp::Var();
838
839 pp::VarArrayBuffer challenge_var(challenge_length);
840 uint8_t* var_data = static_cast<uint8_t*>(challenge_var.Map());
841 memcpy(var_data, challenge, challenge_length);
842
843 std::string service_id_str(service_id, service_id_length);
844 int32_t result = platform_verification_.ChallengePlatform(
845 pp::Var(service_id_str), challenge_var, &signed_data_output_,
846 &signed_data_signature_output_, &platform_key_certificate_output_,
847 callback_factory_.NewCallback(&CdmAdapter::SendPlatformChallengeDone));
848 challenge_var.Unmap();
849 if (result == PP_OK_COMPLETIONPENDING) {
850 challenge_in_progress_ = true;
851 return;
852 }
853
854 // Fall through on error and issue an empty OnPlatformChallengeResponse().
855 PP_DCHECK(result != PP_OK);
856 #endif
857
858 cdm::PlatformChallengeResponse response = {};
859 cdm_->OnPlatformChallengeResponse(response);
860 }
861
EnableOutputProtection(uint32_t desired_protection_mask)862 void CdmAdapter::EnableOutputProtection(uint32_t desired_protection_mask) {
863 #if defined(OS_CHROMEOS)
864 int32_t result = output_protection_.EnableProtection(
865 desired_protection_mask, callback_factory_.NewCallback(
866 &CdmAdapter::EnableProtectionDone));
867
868 // Errors are ignored since clients must call QueryOutputProtectionStatus() to
869 // inspect the protection status on a regular basis.
870
871 if (result != PP_OK && result != PP_OK_COMPLETIONPENDING)
872 CDM_DLOG() << __FUNCTION__ << " failed!";
873 #endif
874 }
875
QueryOutputProtectionStatus()876 void CdmAdapter::QueryOutputProtectionStatus() {
877 #if defined(OS_CHROMEOS)
878 PP_DCHECK(!query_output_protection_in_progress_);
879
880 output_link_mask_ = output_protection_mask_ = 0;
881 const int32_t result = output_protection_.QueryStatus(
882 &output_link_mask_,
883 &output_protection_mask_,
884 callback_factory_.NewCallback(
885 &CdmAdapter::QueryOutputProtectionStatusDone));
886 if (result == PP_OK_COMPLETIONPENDING) {
887 query_output_protection_in_progress_ = true;
888 return;
889 }
890
891 // Fall through on error and issue an empty OnQueryOutputProtectionStatus().
892 PP_DCHECK(result != PP_OK);
893 #endif
894
895 cdm_->OnQueryOutputProtectionStatus(0, 0);
896 }
897
OnDeferredInitializationDone(cdm::StreamType stream_type,cdm::Status decoder_status)898 void CdmAdapter::OnDeferredInitializationDone(cdm::StreamType stream_type,
899 cdm::Status decoder_status) {
900 switch (stream_type) {
901 case cdm::kStreamTypeAudio:
902 PP_DCHECK(deferred_initialize_audio_decoder_);
903 CallOnMain(
904 callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
905 PP_DECRYPTORSTREAMTYPE_AUDIO,
906 deferred_audio_decoder_config_id_,
907 decoder_status == cdm::kSuccess));
908 deferred_initialize_audio_decoder_ = false;
909 deferred_audio_decoder_config_id_ = 0;
910 break;
911 case cdm::kStreamTypeVideo:
912 PP_DCHECK(deferred_initialize_video_decoder_);
913 CallOnMain(
914 callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
915 PP_DECRYPTORSTREAMTYPE_VIDEO,
916 deferred_video_decoder_config_id_,
917 decoder_status == cdm::kSuccess));
918 deferred_initialize_video_decoder_ = false;
919 deferred_video_decoder_config_id_ = 0;
920 break;
921 }
922 }
923
924 #if defined(OS_CHROMEOS)
SendPlatformChallengeDone(int32_t result)925 void CdmAdapter::SendPlatformChallengeDone(int32_t result) {
926 challenge_in_progress_ = false;
927
928 if (result != PP_OK) {
929 CDM_DLOG() << __FUNCTION__ << ": Platform challenge failed!";
930 cdm::PlatformChallengeResponse response = {};
931 cdm_->OnPlatformChallengeResponse(response);
932 return;
933 }
934
935 pp::VarArrayBuffer signed_data_var(signed_data_output_);
936 pp::VarArrayBuffer signed_data_signature_var(signed_data_signature_output_);
937 std::string platform_key_certificate_string =
938 platform_key_certificate_output_.AsString();
939
940 cdm::PlatformChallengeResponse response = {
941 static_cast<uint8_t*>(signed_data_var.Map()),
942 signed_data_var.ByteLength(),
943
944 static_cast<uint8_t*>(signed_data_signature_var.Map()),
945 signed_data_signature_var.ByteLength(),
946
947 reinterpret_cast<const uint8_t*>(platform_key_certificate_string.c_str()),
948 static_cast<uint32_t>(platform_key_certificate_string.length())
949 };
950 cdm_->OnPlatformChallengeResponse(response);
951
952 signed_data_var.Unmap();
953 signed_data_signature_var.Unmap();
954 }
955
EnableProtectionDone(int32_t result)956 void CdmAdapter::EnableProtectionDone(int32_t result) {
957 // Does nothing since clients must call QueryOutputProtectionStatus() to
958 // inspect the protection status on a regular basis.
959 CDM_DLOG() << __FUNCTION__ << " : " << result;
960 }
961
QueryOutputProtectionStatusDone(int32_t result)962 void CdmAdapter::QueryOutputProtectionStatusDone(int32_t result) {
963 PP_DCHECK(query_output_protection_in_progress_);
964 query_output_protection_in_progress_ = false;
965
966 // Return a protection status of none on error.
967 if (result != PP_OK)
968 output_link_mask_ = output_protection_mask_ = 0;
969
970 cdm_->OnQueryOutputProtectionStatus(output_link_mask_,
971 output_protection_mask_);
972 }
973 #endif
974
GetCdmHost(int host_interface_version,void * user_data)975 void* GetCdmHost(int host_interface_version, void* user_data) {
976 if (!host_interface_version || !user_data)
977 return NULL;
978
979 COMPILE_ASSERT(cdm::ContentDecryptionModule::Host::kVersion ==
980 cdm::ContentDecryptionModule_3::Host::kVersion,
981 update_code_below);
982
983 // Ensure IsSupportedCdmHostVersion matches implementation of this function.
984 // Always update this DCHECK when updating this function.
985 // If this check fails, update this function and DCHECK or update
986 // IsSupportedCdmHostVersion.
987 PP_DCHECK(
988 // Future version is not supported.
989 !IsSupportedCdmHostVersion(
990 cdm::ContentDecryptionModule::Host::kVersion + 1) &&
991 // Current version is supported.
992 IsSupportedCdmHostVersion(cdm::ContentDecryptionModule::Host::kVersion) &&
993 // Include all previous supported versions here.
994 IsSupportedCdmHostVersion(cdm::Host_1::kVersion) &&
995 // One older than the oldest supported version is not supported.
996 !IsSupportedCdmHostVersion(cdm::Host_1::kVersion - 1));
997 PP_DCHECK(IsSupportedCdmHostVersion(host_interface_version));
998
999 CdmAdapter* cdm_adapter = static_cast<CdmAdapter*>(user_data);
1000 CDM_DLOG() << "Create CDM Host with version " << host_interface_version;
1001 switch (host_interface_version) {
1002 case cdm::Host_3::kVersion:
1003 return static_cast<cdm::Host_3*>(cdm_adapter);
1004 case cdm::Host_2::kVersion:
1005 return static_cast<cdm::Host_2*>(cdm_adapter);
1006 case cdm::Host_1::kVersion:
1007 return static_cast<cdm::Host_1*>(cdm_adapter);
1008 default:
1009 PP_NOTREACHED();
1010 return NULL;
1011 }
1012 }
1013
1014 // This object is the global object representing this plugin library as long
1015 // as it is loaded.
1016 class CdmAdapterModule : public pp::Module {
1017 public:
CdmAdapterModule()1018 CdmAdapterModule() : pp::Module() {
1019 // This function blocks the renderer thread (PluginInstance::Initialize()).
1020 // Move this call to other places if this may be a concern in the future.
1021 INITIALIZE_CDM_MODULE();
1022 }
~CdmAdapterModule()1023 virtual ~CdmAdapterModule() {
1024 DeinitializeCdmModule();
1025 }
1026
CreateInstance(PP_Instance instance)1027 virtual pp::Instance* CreateInstance(PP_Instance instance) {
1028 return new CdmAdapter(instance, this);
1029 }
1030 };
1031
1032 } // namespace media
1033
1034 namespace pp {
1035
1036 // Factory function for your specialization of the Module object.
CreateModule()1037 Module* CreateModule() {
1038 return new media::CdmAdapterModule();
1039 }
1040
1041 } // namespace pp
1042