// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/cdm/ppapi/cdm_adapter.h"
#include "media/cdm/ppapi/cdm_helpers.h"
#include "media/cdm/ppapi/cdm_logging.h"
#include "media/cdm/ppapi/supported_cdm_versions.h"
#include "ppapi/c/ppb_console.h"
#if defined(CHECK_DOCUMENT_URL)
#include "ppapi/cpp/dev/url_util_dev.h"
#include "ppapi/cpp/instance_handle.h"
#endif // defined(CHECK_DOCUMENT_URL)
namespace {
#if !defined(NDEBUG)
#define DLOG_TO_CONSOLE(message) LogToConsole(message);
#else
#define DLOG_TO_CONSOLE(message) (void)(message);
#endif
bool IsMainThread() {
return pp::Module::Get()->core()->IsMainThread();
}
// Posts a task to run |cb| on the main thread. The task is posted even if the
// current thread is the main thread.
void PostOnMain(pp::CompletionCallback cb) {
pp::Module::Get()->core()->CallOnMainThread(0, cb, PP_OK);
}
// Ensures |cb| is called on the main thread, either because the current thread
// is the main thread or by posting it to the main thread.
void CallOnMain(pp::CompletionCallback cb) {
// TODO(tomfinegan): This is only necessary because PPAPI doesn't allow calls
// off the main thread yet. Remove this once the change lands.
if (IsMainThread())
cb.Run(PP_OK);
else
PostOnMain(cb);
}
// Configures a cdm::InputBuffer. |subsamples| must exist as long as
// |input_buffer| is in use.
void ConfigureInputBuffer(
const pp::Buffer_Dev& encrypted_buffer,
const PP_EncryptedBlockInfo& encrypted_block_info,
std::vector<cdm::SubsampleEntry>* subsamples,
cdm::InputBuffer* input_buffer) {
PP_DCHECK(subsamples);
PP_DCHECK(!encrypted_buffer.is_null());
input_buffer->data = static_cast<uint8_t*>(encrypted_buffer.data());
input_buffer->data_size = encrypted_block_info.data_size;
PP_DCHECK(encrypted_buffer.size() >= input_buffer->data_size);
input_buffer->data_offset = encrypted_block_info.data_offset;
PP_DCHECK(encrypted_block_info.key_id_size <=
arraysize(encrypted_block_info.key_id));
input_buffer->key_id_size = encrypted_block_info.key_id_size;
input_buffer->key_id = input_buffer->key_id_size > 0 ?
encrypted_block_info.key_id : NULL;
PP_DCHECK(encrypted_block_info.iv_size <= arraysize(encrypted_block_info.iv));
input_buffer->iv_size = encrypted_block_info.iv_size;
input_buffer->iv = encrypted_block_info.iv_size > 0 ?
encrypted_block_info.iv : NULL;
input_buffer->num_subsamples = encrypted_block_info.num_subsamples;
if (encrypted_block_info.num_subsamples > 0) {
subsamples->reserve(encrypted_block_info.num_subsamples);
for (uint32_t i = 0; i < encrypted_block_info.num_subsamples; ++i) {
subsamples->push_back(cdm::SubsampleEntry(
encrypted_block_info.subsamples[i].clear_bytes,
encrypted_block_info.subsamples[i].cipher_bytes));
}
input_buffer->subsamples = &(*subsamples)[0];
}
input_buffer->timestamp = encrypted_block_info.tracking_info.timestamp;
}
PP_DecryptResult CdmStatusToPpDecryptResult(cdm::Status status) {
switch (status) {
case cdm::kSuccess:
return PP_DECRYPTRESULT_SUCCESS;
case cdm::kNoKey:
return PP_DECRYPTRESULT_DECRYPT_NOKEY;
case cdm::kNeedMoreData:
return PP_DECRYPTRESULT_NEEDMOREDATA;
case cdm::kDecryptError:
return PP_DECRYPTRESULT_DECRYPT_ERROR;
case cdm::kDecodeError:
return PP_DECRYPTRESULT_DECODE_ERROR;
default:
PP_NOTREACHED();
return PP_DECRYPTRESULT_DECODE_ERROR;
}
}
PP_DecryptedFrameFormat CdmVideoFormatToPpDecryptedFrameFormat(
cdm::VideoFormat format) {
switch (format) {
case cdm::kYv12:
return PP_DECRYPTEDFRAMEFORMAT_YV12;
case cdm::kI420:
return PP_DECRYPTEDFRAMEFORMAT_I420;
default:
return PP_DECRYPTEDFRAMEFORMAT_UNKNOWN;
}
}
PP_DecryptedSampleFormat CdmAudioFormatToPpDecryptedSampleFormat(
cdm::AudioFormat format) {
switch (format) {
case cdm::kAudioFormatU8:
return PP_DECRYPTEDSAMPLEFORMAT_U8;
case cdm::kAudioFormatS16:
return PP_DECRYPTEDSAMPLEFORMAT_S16;
case cdm::kAudioFormatS32:
return PP_DECRYPTEDSAMPLEFORMAT_S32;
case cdm::kAudioFormatF32:
return PP_DECRYPTEDSAMPLEFORMAT_F32;
case cdm::kAudioFormatPlanarS16:
return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_S16;
case cdm::kAudioFormatPlanarF32:
return PP_DECRYPTEDSAMPLEFORMAT_PLANAR_F32;
default:
return PP_DECRYPTEDSAMPLEFORMAT_UNKNOWN;
}
}
cdm::AudioDecoderConfig::AudioCodec PpAudioCodecToCdmAudioCodec(
PP_AudioCodec codec) {
switch (codec) {
case PP_AUDIOCODEC_VORBIS:
return cdm::AudioDecoderConfig::kCodecVorbis;
case PP_AUDIOCODEC_AAC:
return cdm::AudioDecoderConfig::kCodecAac;
default:
return cdm::AudioDecoderConfig::kUnknownAudioCodec;
}
}
cdm::VideoDecoderConfig::VideoCodec PpVideoCodecToCdmVideoCodec(
PP_VideoCodec codec) {
switch (codec) {
case PP_VIDEOCODEC_VP8:
return cdm::VideoDecoderConfig::kCodecVp8;
case PP_VIDEOCODEC_H264:
return cdm::VideoDecoderConfig::kCodecH264;
default:
return cdm::VideoDecoderConfig::kUnknownVideoCodec;
}
}
cdm::VideoDecoderConfig::VideoCodecProfile PpVCProfileToCdmVCProfile(
PP_VideoCodecProfile profile) {
switch (profile) {
case PP_VIDEOCODECPROFILE_VP8_MAIN:
return cdm::VideoDecoderConfig::kVp8ProfileMain;
case PP_VIDEOCODECPROFILE_H264_BASELINE:
return cdm::VideoDecoderConfig::kH264ProfileBaseline;
case PP_VIDEOCODECPROFILE_H264_MAIN:
return cdm::VideoDecoderConfig::kH264ProfileMain;
case PP_VIDEOCODECPROFILE_H264_EXTENDED:
return cdm::VideoDecoderConfig::kH264ProfileExtended;
case PP_VIDEOCODECPROFILE_H264_HIGH:
return cdm::VideoDecoderConfig::kH264ProfileHigh;
case PP_VIDEOCODECPROFILE_H264_HIGH_10:
return cdm::VideoDecoderConfig::kH264ProfileHigh10;
case PP_VIDEOCODECPROFILE_H264_HIGH_422:
return cdm::VideoDecoderConfig::kH264ProfileHigh422;
case PP_VIDEOCODECPROFILE_H264_HIGH_444_PREDICTIVE:
return cdm::VideoDecoderConfig::kH264ProfileHigh444Predictive;
default:
return cdm::VideoDecoderConfig::kUnknownVideoCodecProfile;
}
}
cdm::VideoFormat PpDecryptedFrameFormatToCdmVideoFormat(
PP_DecryptedFrameFormat format) {
switch (format) {
case PP_DECRYPTEDFRAMEFORMAT_YV12:
return cdm::kYv12;
case PP_DECRYPTEDFRAMEFORMAT_I420:
return cdm::kI420;
default:
return cdm::kUnknownVideoFormat;
}
}
cdm::StreamType PpDecryptorStreamTypeToCdmStreamType(
PP_DecryptorStreamType stream_type) {
switch (stream_type) {
case PP_DECRYPTORSTREAMTYPE_AUDIO:
return cdm::kStreamTypeAudio;
case PP_DECRYPTORSTREAMTYPE_VIDEO:
return cdm::kStreamTypeVideo;
}
PP_NOTREACHED();
return cdm::kStreamTypeVideo;
}
} // namespace
namespace media {
CdmAdapter::CdmAdapter(PP_Instance instance, pp::Module* module)
: pp::Instance(instance),
pp::ContentDecryptor_Private(this),
#if defined(OS_CHROMEOS)
output_protection_(this),
platform_verification_(this),
challenge_in_progress_(false),
output_link_mask_(0),
output_protection_mask_(0),
query_output_protection_in_progress_(false),
#endif
allocator_(this),
cdm_(NULL),
deferred_initialize_audio_decoder_(false),
deferred_audio_decoder_config_id_(0),
deferred_initialize_video_decoder_(false),
deferred_video_decoder_config_id_(0) {
callback_factory_.Initialize(this);
}
CdmAdapter::~CdmAdapter() {}
bool CdmAdapter::CreateCdmInstance(const std::string& key_system) {
PP_DCHECK(!cdm_);
cdm_ = make_linked_ptr(CdmWrapper::Create(
key_system.data(), key_system.size(), GetCdmHost, this));
bool success = cdm_ != NULL;
const std::string message = "CDM instance for " + key_system +
(success ? "" : " could not be") + " created.";
DLOG_TO_CONSOLE(message);
CDM_DLOG() << message;
return success;
}
// No KeyErrors should be reported in this function because they cannot be
// bubbled up in the WD EME API. Those errors will be reported during session
// creation (CreateSession).
void CdmAdapter::Initialize(const std::string& key_system) {
PP_DCHECK(!key_system.empty());
PP_DCHECK(key_system_.empty() || (key_system_ == key_system && cdm_));
if (!cdm_ && !CreateCdmInstance(key_system))
return;
PP_DCHECK(cdm_);
key_system_ = key_system;
}
void CdmAdapter::CreateSession(uint32_t session_id,
const std::string& type,
pp::VarArrayBuffer init_data) {
// Initialize() doesn't report an error, so CreateSession() can be called
// even if Initialize() failed.
if (!cdm_) {
OnSessionError(session_id, cdm::kUnknownError, 0);
return;
}
#if defined(CHECK_DOCUMENT_URL)
PP_URLComponents_Dev url_components = {};
const pp::URLUtil_Dev* url_util = pp::URLUtil_Dev::Get();
if (!url_util) {
OnSessionError(session_id, cdm::kUnknownError, 0);
return;
}
pp::Var href = url_util->GetDocumentURL(
pp::InstanceHandle(pp_instance()), &url_components);
PP_DCHECK(href.is_string());
PP_DCHECK(!href.AsString().empty());
PP_DCHECK(url_components.host.begin);
PP_DCHECK(0 < url_components.host.len);
#endif // defined(CHECK_DOCUMENT_URL)
cdm_->CreateSession(session_id,
type.data(),
type.size(),
static_cast<const uint8_t*>(init_data.Map()),
init_data.ByteLength());
}
void CdmAdapter::UpdateSession(uint32_t session_id,
pp::VarArrayBuffer response) {
// TODO(jrummell): In EME WD, AddKey() can only be called on valid sessions.
// We should be able to DCHECK(cdm_) when addressing http://crbug.com/249976.
if (!cdm_) {
OnSessionError(session_id, cdm::kUnknownError, 0);
return;
}
const uint8_t* response_ptr = static_cast<const uint8_t*>(response.Map());
const uint32_t response_size = response.ByteLength();
if (!response_ptr || response_size <= 0) {
OnSessionError(session_id, cdm::kUnknownError, 0);
return;
}
CdmWrapper::Result result =
cdm_->UpdateSession(session_id, response_ptr, response_size);
switch (result) {
case CdmWrapper::NO_ACTION:
break;
case CdmWrapper::CALL_KEY_ADDED:
OnSessionReady(session_id);
break;
case CdmWrapper::CALL_KEY_ERROR:
OnSessionError(session_id, cdm::kUnknownError, 0);
break;
}
}
void CdmAdapter::ReleaseSession(uint32_t session_id) {
// TODO(jrummell): In EME WD, AddKey() can only be called on valid sessions.
// We should be able to DCHECK(cdm_) when addressing http://crbug.com/249976.
if (!cdm_) {
OnSessionError(session_id, cdm::kUnknownError, 0);
return;
}
CdmWrapper::Result result = cdm_->ReleaseSession(session_id);
switch (result) {
case CdmWrapper::NO_ACTION:
break;
case CdmWrapper::CALL_KEY_ADDED:
PP_NOTREACHED();
break;
case CdmWrapper::CALL_KEY_ERROR:
OnSessionError(session_id, cdm::kUnknownError, 0);
break;
}
}
// Note: In the following decryption/decoding related functions, errors are NOT
// reported via KeyError, but are reported via corresponding PPB calls.
void CdmAdapter::Decrypt(pp::Buffer_Dev encrypted_buffer,
const PP_EncryptedBlockInfo& encrypted_block_info) {
PP_DCHECK(!encrypted_buffer.is_null());
// Release a buffer that the caller indicated it is finished with.
allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
cdm::Status status = cdm::kDecryptError;
LinkedDecryptedBlock decrypted_block(new DecryptedBlockImpl());
if (cdm_) {
cdm::InputBuffer input_buffer;
std::vector<cdm::SubsampleEntry> subsamples;
ConfigureInputBuffer(encrypted_buffer, encrypted_block_info, &subsamples,
&input_buffer);
status = cdm_->Decrypt(input_buffer, decrypted_block.get());
PP_DCHECK(status != cdm::kSuccess ||
(decrypted_block->DecryptedBuffer() &&
decrypted_block->DecryptedBuffer()->Size()));
}
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DeliverBlock,
status,
decrypted_block,
encrypted_block_info.tracking_info));
}
void CdmAdapter::InitializeAudioDecoder(
const PP_AudioDecoderConfig& decoder_config,
pp::Buffer_Dev extra_data_buffer) {
PP_DCHECK(!deferred_initialize_audio_decoder_);
PP_DCHECK(deferred_audio_decoder_config_id_ == 0);
cdm::Status status = cdm::kSessionError;
if (cdm_) {
cdm::AudioDecoderConfig cdm_decoder_config;
cdm_decoder_config.codec =
PpAudioCodecToCdmAudioCodec(decoder_config.codec);
cdm_decoder_config.channel_count = decoder_config.channel_count;
cdm_decoder_config.bits_per_channel = decoder_config.bits_per_channel;
cdm_decoder_config.samples_per_second = decoder_config.samples_per_second;
cdm_decoder_config.extra_data =
static_cast<uint8_t*>(extra_data_buffer.data());
cdm_decoder_config.extra_data_size = extra_data_buffer.size();
status = cdm_->InitializeAudioDecoder(cdm_decoder_config);
}
if (status == cdm::kDeferredInitialization) {
deferred_initialize_audio_decoder_ = true;
deferred_audio_decoder_config_id_ = decoder_config.request_id;
return;
}
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DecoderInitializeDone,
PP_DECRYPTORSTREAMTYPE_AUDIO,
decoder_config.request_id,
status == cdm::kSuccess));
}
void CdmAdapter::InitializeVideoDecoder(
const PP_VideoDecoderConfig& decoder_config,
pp::Buffer_Dev extra_data_buffer) {
PP_DCHECK(!deferred_initialize_video_decoder_);
PP_DCHECK(deferred_video_decoder_config_id_ == 0);
cdm::Status status = cdm::kSessionError;
if (cdm_) {
cdm::VideoDecoderConfig cdm_decoder_config;
cdm_decoder_config.codec =
PpVideoCodecToCdmVideoCodec(decoder_config.codec);
cdm_decoder_config.profile =
PpVCProfileToCdmVCProfile(decoder_config.profile);
cdm_decoder_config.format =
PpDecryptedFrameFormatToCdmVideoFormat(decoder_config.format);
cdm_decoder_config.coded_size.width = decoder_config.width;
cdm_decoder_config.coded_size.height = decoder_config.height;
cdm_decoder_config.extra_data =
static_cast<uint8_t*>(extra_data_buffer.data());
cdm_decoder_config.extra_data_size = extra_data_buffer.size();
status = cdm_->InitializeVideoDecoder(cdm_decoder_config);
}
if (status == cdm::kDeferredInitialization) {
deferred_initialize_video_decoder_ = true;
deferred_video_decoder_config_id_ = decoder_config.request_id;
return;
}
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DecoderInitializeDone,
PP_DECRYPTORSTREAMTYPE_VIDEO,
decoder_config.request_id,
status == cdm::kSuccess));
}
void CdmAdapter::DeinitializeDecoder(PP_DecryptorStreamType decoder_type,
uint32_t request_id) {
PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
if (cdm_) {
cdm_->DeinitializeDecoder(
PpDecryptorStreamTypeToCdmStreamType(decoder_type));
}
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DecoderDeinitializeDone,
decoder_type,
request_id));
}
void CdmAdapter::ResetDecoder(PP_DecryptorStreamType decoder_type,
uint32_t request_id) {
PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
if (cdm_)
cdm_->ResetDecoder(PpDecryptorStreamTypeToCdmStreamType(decoder_type));
CallOnMain(callback_factory_.NewCallback(&CdmAdapter::DecoderResetDone,
decoder_type,
request_id));
}
void CdmAdapter::DecryptAndDecode(
PP_DecryptorStreamType decoder_type,
pp::Buffer_Dev encrypted_buffer,
const PP_EncryptedBlockInfo& encrypted_block_info) {
PP_DCHECK(cdm_); // InitializeXxxxxDecoder should have succeeded.
// Release a buffer that the caller indicated it is finished with.
allocator_.Release(encrypted_block_info.tracking_info.buffer_id);
cdm::InputBuffer input_buffer;
std::vector<cdm::SubsampleEntry> subsamples;
if (cdm_ && !encrypted_buffer.is_null()) {
ConfigureInputBuffer(encrypted_buffer,
encrypted_block_info,
&subsamples,
&input_buffer);
}
cdm::Status status = cdm::kDecodeError;
switch (decoder_type) {
case PP_DECRYPTORSTREAMTYPE_VIDEO: {
LinkedVideoFrame video_frame(new VideoFrameImpl());
if (cdm_)
status = cdm_->DecryptAndDecodeFrame(input_buffer, video_frame.get());
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DeliverFrame,
status,
video_frame,
encrypted_block_info.tracking_info));
return;
}
case PP_DECRYPTORSTREAMTYPE_AUDIO: {
LinkedAudioFrames audio_frames(new AudioFramesImpl());
if (cdm_) {
status = cdm_->DecryptAndDecodeSamples(input_buffer,
audio_frames.get());
}
CallOnMain(callback_factory_.NewCallback(
&CdmAdapter::DeliverSamples,
status,
audio_frames,
encrypted_block_info.tracking_info));
return;
}
default:
PP_NOTREACHED();
return;
}
}
cdm::Buffer* CdmAdapter::Allocate(uint32_t capacity) {
return allocator_.Allocate(capacity);
}
void CdmAdapter::SetTimer(int64_t delay_ms, void* context) {
// NOTE: doesn't really need to run on the main thread; could just as well run
// on a helper thread if |cdm_| were thread-friendly and care was taken. We
// only use CallOnMainThread() here to get delayed-execution behavior.
pp::Module::Get()->core()->CallOnMainThread(
delay_ms,
callback_factory_.NewCallback(&CdmAdapter::TimerExpired, context),
PP_OK);
}
void CdmAdapter::TimerExpired(int32_t result, void* context) {
PP_DCHECK(result == PP_OK);
cdm_->TimerExpired(context);
}
double CdmAdapter::GetCurrentWallTimeInSeconds() {
return pp::Module::Get()->core()->GetTime();
}
void CdmAdapter::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) {
PP_DCHECK(!key_system_.empty());
std::string session_id_str(session_id, session_id_length);
PP_DCHECK(!session_id_str.empty());
uint32_t session_reference_id = cdm_->LookupSessionId(session_id_str);
OnSessionCreated(session_reference_id, session_id, session_id_length);
OnSessionMessage(session_reference_id,
message, message_length,
default_url, default_url_length);
}
void CdmAdapter::SendKeyError(const char* session_id,
uint32_t session_id_length,
cdm::MediaKeyError error_code,
uint32_t system_code) {
std::string session_id_str(session_id, session_id_length);
uint32_t session_reference_id = cdm_->LookupSessionId(session_id_str);
OnSessionError(session_reference_id, error_code, system_code);
}
void CdmAdapter::GetPrivateData(int32_t* instance,
GetPrivateInterface* get_interface) {
*instance = pp_instance();
*get_interface = pp::Module::Get()->get_browser_interface();
}
void CdmAdapter::OnSessionCreated(uint32_t session_id,
const char* web_session_id,
uint32_t web_session_id_length) {
PostOnMain(callback_factory_.NewCallback(
&CdmAdapter::SendSessionCreatedInternal,
session_id,
std::string(web_session_id, web_session_id_length)));
}
void CdmAdapter::OnSessionMessage(uint32_t session_id,
const char* message,
uint32_t message_length,
const char* destination_url,
uint32_t destination_url_length) {
PostOnMain(callback_factory_.NewCallback(
&CdmAdapter::SendSessionMessageInternal,
session_id,
std::vector<uint8>(message, message + message_length),
std::string(destination_url, destination_url_length)));
}
void CdmAdapter::OnSessionReady(uint32_t session_id) {
PostOnMain(callback_factory_.NewCallback(
&CdmAdapter::SendSessionReadyInternal, session_id));
}
void CdmAdapter::OnSessionClosed(uint32_t session_id) {
PostOnMain(callback_factory_.NewCallback(
&CdmAdapter::SendSessionClosedInternal, session_id));
}
void CdmAdapter::OnSessionError(uint32_t session_id,
cdm::MediaKeyError error_code,
uint32_t system_code) {
PostOnMain(callback_factory_.NewCallback(
&CdmAdapter::SendSessionErrorInternal,
session_id,
error_code,
system_code));
}
void CdmAdapter::SendSessionCreatedInternal(int32_t result,
uint32_t session_id,
const std::string& web_session_id) {
PP_DCHECK(result == PP_OK);
pp::ContentDecryptor_Private::SessionCreated(session_id, web_session_id);
}
void CdmAdapter::SendSessionMessageInternal(int32_t result,
uint32_t session_id,
const std::vector<uint8>& message,
const std::string& default_url) {
PP_DCHECK(result == PP_OK);
pp::VarArrayBuffer message_array_buffer(message.size());
if (message.size() > 0) {
memcpy(message_array_buffer.Map(), message.data(), message.size());
}
pp::ContentDecryptor_Private::SessionMessage(
session_id, message_array_buffer, default_url);
}
void CdmAdapter::SendSessionReadyInternal(int32_t result, uint32_t session_id) {
PP_DCHECK(result == PP_OK);
pp::ContentDecryptor_Private::SessionReady(session_id);
}
void CdmAdapter::SendSessionClosedInternal(int32_t result,
uint32_t session_id) {
PP_DCHECK(result == PP_OK);
pp::ContentDecryptor_Private::SessionClosed(session_id);
}
void CdmAdapter::SendSessionErrorInternal(int32_t result,
uint32_t session_id,
cdm::MediaKeyError error_code,
uint32_t system_code) {
PP_DCHECK(result == PP_OK);
pp::ContentDecryptor_Private::SessionError(
session_id, error_code, system_code);
}
void CdmAdapter::DeliverBlock(int32_t result,
const cdm::Status& status,
const LinkedDecryptedBlock& decrypted_block,
const PP_DecryptTrackingInfo& tracking_info) {
PP_DCHECK(result == PP_OK);
PP_DecryptedBlockInfo decrypted_block_info;
decrypted_block_info.tracking_info = tracking_info;
decrypted_block_info.tracking_info.timestamp = decrypted_block->Timestamp();
decrypted_block_info.tracking_info.buffer_id = 0;
decrypted_block_info.data_size = 0;
decrypted_block_info.result = CdmStatusToPpDecryptResult(status);
pp::Buffer_Dev buffer;
if (decrypted_block_info.result == PP_DECRYPTRESULT_SUCCESS) {
PP_DCHECK(decrypted_block.get() && decrypted_block->DecryptedBuffer());
if (!decrypted_block.get() || !decrypted_block->DecryptedBuffer()) {
PP_NOTREACHED();
decrypted_block_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
} else {
PpbBuffer* ppb_buffer =
static_cast<PpbBuffer*>(decrypted_block->DecryptedBuffer());
buffer = ppb_buffer->buffer_dev();
decrypted_block_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
decrypted_block_info.data_size = ppb_buffer->Size();
}
}
pp::ContentDecryptor_Private::DeliverBlock(buffer, decrypted_block_info);
}
void CdmAdapter::DecoderInitializeDone(int32_t result,
PP_DecryptorStreamType decoder_type,
uint32_t request_id,
bool success) {
PP_DCHECK(result == PP_OK);
pp::ContentDecryptor_Private::DecoderInitializeDone(decoder_type,
request_id,
success);
}
void CdmAdapter::DecoderDeinitializeDone(int32_t result,
PP_DecryptorStreamType decoder_type,
uint32_t request_id) {
pp::ContentDecryptor_Private::DecoderDeinitializeDone(decoder_type,
request_id);
}
void CdmAdapter::DecoderResetDone(int32_t result,
PP_DecryptorStreamType decoder_type,
uint32_t request_id) {
pp::ContentDecryptor_Private::DecoderResetDone(decoder_type, request_id);
}
void CdmAdapter::DeliverFrame(
int32_t result,
const cdm::Status& status,
const LinkedVideoFrame& video_frame,
const PP_DecryptTrackingInfo& tracking_info) {
PP_DCHECK(result == PP_OK);
PP_DecryptedFrameInfo decrypted_frame_info;
decrypted_frame_info.tracking_info.request_id = tracking_info.request_id;
decrypted_frame_info.tracking_info.buffer_id = 0;
decrypted_frame_info.result = CdmStatusToPpDecryptResult(status);
pp::Buffer_Dev buffer;
if (decrypted_frame_info.result == PP_DECRYPTRESULT_SUCCESS) {
if (!IsValidVideoFrame(video_frame)) {
PP_NOTREACHED();
decrypted_frame_info.result = PP_DECRYPTRESULT_DECODE_ERROR;
} else {
PpbBuffer* ppb_buffer =
static_cast<PpbBuffer*>(video_frame->FrameBuffer());
buffer = ppb_buffer->buffer_dev();
decrypted_frame_info.tracking_info.timestamp = video_frame->Timestamp();
decrypted_frame_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
decrypted_frame_info.format =
CdmVideoFormatToPpDecryptedFrameFormat(video_frame->Format());
decrypted_frame_info.width = video_frame->Size().width;
decrypted_frame_info.height = video_frame->Size().height;
decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_Y] =
video_frame->PlaneOffset(cdm::VideoFrame::kYPlane);
decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_U] =
video_frame->PlaneOffset(cdm::VideoFrame::kUPlane);
decrypted_frame_info.plane_offsets[PP_DECRYPTEDFRAMEPLANES_V] =
video_frame->PlaneOffset(cdm::VideoFrame::kVPlane);
decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_Y] =
video_frame->Stride(cdm::VideoFrame::kYPlane);
decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_U] =
video_frame->Stride(cdm::VideoFrame::kUPlane);
decrypted_frame_info.strides[PP_DECRYPTEDFRAMEPLANES_V] =
video_frame->Stride(cdm::VideoFrame::kVPlane);
}
}
pp::ContentDecryptor_Private::DeliverFrame(buffer, decrypted_frame_info);
}
void CdmAdapter::DeliverSamples(int32_t result,
const cdm::Status& status,
const LinkedAudioFrames& audio_frames,
const PP_DecryptTrackingInfo& tracking_info) {
PP_DCHECK(result == PP_OK);
PP_DecryptedSampleInfo decrypted_sample_info;
decrypted_sample_info.tracking_info = tracking_info;
decrypted_sample_info.tracking_info.timestamp = 0;
decrypted_sample_info.tracking_info.buffer_id = 0;
decrypted_sample_info.data_size = 0;
decrypted_sample_info.result = CdmStatusToPpDecryptResult(status);
pp::Buffer_Dev buffer;
if (decrypted_sample_info.result == PP_DECRYPTRESULT_SUCCESS) {
PP_DCHECK(audio_frames.get() && audio_frames->FrameBuffer());
if (!audio_frames.get() || !audio_frames->FrameBuffer()) {
PP_NOTREACHED();
decrypted_sample_info.result = PP_DECRYPTRESULT_DECRYPT_ERROR;
} else {
PpbBuffer* ppb_buffer =
static_cast<PpbBuffer*>(audio_frames->FrameBuffer());
buffer = ppb_buffer->buffer_dev();
decrypted_sample_info.tracking_info.buffer_id = ppb_buffer->buffer_id();
decrypted_sample_info.data_size = ppb_buffer->Size();
decrypted_sample_info.format =
CdmAudioFormatToPpDecryptedSampleFormat(audio_frames->Format());
}
}
pp::ContentDecryptor_Private::DeliverSamples(buffer, decrypted_sample_info);
}
bool CdmAdapter::IsValidVideoFrame(const LinkedVideoFrame& video_frame) {
if (!video_frame.get() ||
!video_frame->FrameBuffer() ||
(video_frame->Format() != cdm::kI420 &&
video_frame->Format() != cdm::kYv12)) {
CDM_DLOG() << "Invalid video frame!";
return false;
}
PpbBuffer* ppb_buffer = static_cast<PpbBuffer*>(video_frame->FrameBuffer());
for (uint32_t i = 0; i < cdm::VideoFrame::kMaxPlanes; ++i) {
int plane_height = (i == cdm::VideoFrame::kYPlane) ?
video_frame->Size().height : (video_frame->Size().height + 1) / 2;
cdm::VideoFrame::VideoPlane plane =
static_cast<cdm::VideoFrame::VideoPlane>(i);
if (ppb_buffer->Size() < video_frame->PlaneOffset(plane) +
plane_height * video_frame->Stride(plane)) {
return false;
}
}
return true;
}
#if !defined(NDEBUG)
void CdmAdapter::LogToConsole(const pp::Var& value) {
PP_DCHECK(IsMainThread());
const PPB_Console* console = reinterpret_cast<const PPB_Console*>(
pp::Module::Get()->GetBrowserInterface(PPB_CONSOLE_INTERFACE));
console->Log(pp_instance(), PP_LOGLEVEL_LOG, value.pp_var());
}
#endif // !defined(NDEBUG)
void CdmAdapter::SendPlatformChallenge(
const char* service_id, uint32_t service_id_length,
const char* challenge, uint32_t challenge_length) {
#if defined(OS_CHROMEOS)
PP_DCHECK(!challenge_in_progress_);
// Ensure member variables set by the callback are in a clean state.
signed_data_output_ = pp::Var();
signed_data_signature_output_ = pp::Var();
platform_key_certificate_output_ = pp::Var();
pp::VarArrayBuffer challenge_var(challenge_length);
uint8_t* var_data = static_cast<uint8_t*>(challenge_var.Map());
memcpy(var_data, challenge, challenge_length);
std::string service_id_str(service_id, service_id_length);
int32_t result = platform_verification_.ChallengePlatform(
pp::Var(service_id_str), challenge_var, &signed_data_output_,
&signed_data_signature_output_, &platform_key_certificate_output_,
callback_factory_.NewCallback(&CdmAdapter::SendPlatformChallengeDone));
challenge_var.Unmap();
if (result == PP_OK_COMPLETIONPENDING) {
challenge_in_progress_ = true;
return;
}
// Fall through on error and issue an empty OnPlatformChallengeResponse().
PP_DCHECK(result != PP_OK);
#endif
cdm::PlatformChallengeResponse response = {};
cdm_->OnPlatformChallengeResponse(response);
}
void CdmAdapter::EnableOutputProtection(uint32_t desired_protection_mask) {
#if defined(OS_CHROMEOS)
int32_t result = output_protection_.EnableProtection(
desired_protection_mask, callback_factory_.NewCallback(
&CdmAdapter::EnableProtectionDone));
// Errors are ignored since clients must call QueryOutputProtectionStatus() to
// inspect the protection status on a regular basis.
if (result != PP_OK && result != PP_OK_COMPLETIONPENDING)
CDM_DLOG() << __FUNCTION__ << " failed!";
#endif
}
void CdmAdapter::QueryOutputProtectionStatus() {
#if defined(OS_CHROMEOS)
PP_DCHECK(!query_output_protection_in_progress_);
output_link_mask_ = output_protection_mask_ = 0;
const int32_t result = output_protection_.QueryStatus(
&output_link_mask_,
&output_protection_mask_,
callback_factory_.NewCallback(
&CdmAdapter::QueryOutputProtectionStatusDone));
if (result == PP_OK_COMPLETIONPENDING) {
query_output_protection_in_progress_ = true;
return;
}
// Fall through on error and issue an empty OnQueryOutputProtectionStatus().
PP_DCHECK(result != PP_OK);
#endif
cdm_->OnQueryOutputProtectionStatus(0, 0);
}
void CdmAdapter::OnDeferredInitializationDone(cdm::StreamType stream_type,
cdm::Status decoder_status) {
switch (stream_type) {
case cdm::kStreamTypeAudio:
PP_DCHECK(deferred_initialize_audio_decoder_);
CallOnMain(
callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
PP_DECRYPTORSTREAMTYPE_AUDIO,
deferred_audio_decoder_config_id_,
decoder_status == cdm::kSuccess));
deferred_initialize_audio_decoder_ = false;
deferred_audio_decoder_config_id_ = 0;
break;
case cdm::kStreamTypeVideo:
PP_DCHECK(deferred_initialize_video_decoder_);
CallOnMain(
callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
PP_DECRYPTORSTREAMTYPE_VIDEO,
deferred_video_decoder_config_id_,
decoder_status == cdm::kSuccess));
deferred_initialize_video_decoder_ = false;
deferred_video_decoder_config_id_ = 0;
break;
}
}
#if defined(OS_CHROMEOS)
void CdmAdapter::SendPlatformChallengeDone(int32_t result) {
challenge_in_progress_ = false;
if (result != PP_OK) {
CDM_DLOG() << __FUNCTION__ << ": Platform challenge failed!";
cdm::PlatformChallengeResponse response = {};
cdm_->OnPlatformChallengeResponse(response);
return;
}
pp::VarArrayBuffer signed_data_var(signed_data_output_);
pp::VarArrayBuffer signed_data_signature_var(signed_data_signature_output_);
std::string platform_key_certificate_string =
platform_key_certificate_output_.AsString();
cdm::PlatformChallengeResponse response = {
static_cast<uint8_t*>(signed_data_var.Map()),
signed_data_var.ByteLength(),
static_cast<uint8_t*>(signed_data_signature_var.Map()),
signed_data_signature_var.ByteLength(),
reinterpret_cast<const uint8_t*>(platform_key_certificate_string.c_str()),
static_cast<uint32_t>(platform_key_certificate_string.length())
};
cdm_->OnPlatformChallengeResponse(response);
signed_data_var.Unmap();
signed_data_signature_var.Unmap();
}
void CdmAdapter::EnableProtectionDone(int32_t result) {
// Does nothing since clients must call QueryOutputProtectionStatus() to
// inspect the protection status on a regular basis.
CDM_DLOG() << __FUNCTION__ << " : " << result;
}
void CdmAdapter::QueryOutputProtectionStatusDone(int32_t result) {
PP_DCHECK(query_output_protection_in_progress_);
query_output_protection_in_progress_ = false;
// Return a protection status of none on error.
if (result != PP_OK)
output_link_mask_ = output_protection_mask_ = 0;
cdm_->OnQueryOutputProtectionStatus(output_link_mask_,
output_protection_mask_);
}
#endif
void* GetCdmHost(int host_interface_version, void* user_data) {
if (!host_interface_version || !user_data)
return NULL;
COMPILE_ASSERT(cdm::ContentDecryptionModule::Host::kVersion ==
cdm::ContentDecryptionModule_3::Host::kVersion,
update_code_below);
// Ensure IsSupportedCdmHostVersion matches implementation of this function.
// Always update this DCHECK when updating this function.
// If this check fails, update this function and DCHECK or update
// IsSupportedCdmHostVersion.
PP_DCHECK(
// Future version is not supported.
!IsSupportedCdmHostVersion(
cdm::ContentDecryptionModule::Host::kVersion + 1) &&
// Current version is supported.
IsSupportedCdmHostVersion(cdm::ContentDecryptionModule::Host::kVersion) &&
// Include all previous supported versions here.
IsSupportedCdmHostVersion(cdm::Host_1::kVersion) &&
// One older than the oldest supported version is not supported.
!IsSupportedCdmHostVersion(cdm::Host_1::kVersion - 1));
PP_DCHECK(IsSupportedCdmHostVersion(host_interface_version));
CdmAdapter* cdm_adapter = static_cast<CdmAdapter*>(user_data);
CDM_DLOG() << "Create CDM Host with version " << host_interface_version;
switch (host_interface_version) {
case cdm::Host_3::kVersion:
return static_cast<cdm::Host_3*>(cdm_adapter);
case cdm::Host_2::kVersion:
return static_cast<cdm::Host_2*>(cdm_adapter);
case cdm::Host_1::kVersion:
return static_cast<cdm::Host_1*>(cdm_adapter);
default:
PP_NOTREACHED();
return NULL;
}
}
// This object is the global object representing this plugin library as long
// as it is loaded.
class CdmAdapterModule : public pp::Module {
public:
CdmAdapterModule() : pp::Module() {
// This function blocks the renderer thread (PluginInstance::Initialize()).
// Move this call to other places if this may be a concern in the future.
INITIALIZE_CDM_MODULE();
}
virtual ~CdmAdapterModule() {
DeinitializeCdmModule();
}
virtual pp::Instance* CreateInstance(PP_Instance instance) {
return new CdmAdapter(instance, this);
}
};
} // namespace media
namespace pp {
// Factory function for your specialization of the Module object.
Module* CreateModule() {
return new media::CdmAdapterModule();
}
} // namespace pp