diff options
Diffstat (limited to 'media/gmp-clearkey/0.1/ClearKeyCDM.cpp')
| -rw-r--r-- | media/gmp-clearkey/0.1/ClearKeyCDM.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/media/gmp-clearkey/0.1/ClearKeyCDM.cpp b/media/gmp-clearkey/0.1/ClearKeyCDM.cpp new file mode 100644 index 0000000000..8f1f3655ec --- /dev/null +++ b/media/gmp-clearkey/0.1/ClearKeyCDM.cpp @@ -0,0 +1,188 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "ClearKeyCDM.h" + +#include "ClearKeyUtils.h" + +using namespace cdm; + +ClearKeyCDM::ClearKeyCDM(Host_10* aHost) { + mHost = aHost; + mSessionManager = new ClearKeySessionManager(mHost); +} + +void ClearKeyCDM::Initialize(bool aAllowDistinctiveIdentifier, + bool aAllowPersistentState, + bool aUseHardwareSecureCodecs) { + mSessionManager->Init(aAllowDistinctiveIdentifier, aAllowPersistentState); + // We call mHost->OnInitialized() in the session manager once it has + // initialized. +} + +void ClearKeyCDM::GetStatusForPolicy(uint32_t aPromiseId, + const Policy& aPolicy) { + // MediaKeys::GetStatusForPolicy checks the keysystem and + // reject the promise with NS_ERROR_DOM_NOT_SUPPORTED_ERR without calling CDM. + // This function should never be called and is not supported. + assert(false); +} +void ClearKeyCDM::SetServerCertificate(uint32_t aPromiseId, + const uint8_t* aServerCertificateData, + uint32_t aServerCertificateDataSize) { + mSessionManager->SetServerCertificate(aPromiseId, aServerCertificateData, + aServerCertificateDataSize); +} + +void ClearKeyCDM::CreateSessionAndGenerateRequest(uint32_t aPromiseId, + SessionType aSessionType, + InitDataType aInitDataType, + const uint8_t* aInitData, + uint32_t aInitDataSize) { + mSessionManager->CreateSession(aPromiseId, aInitDataType, aInitData, + aInitDataSize, aSessionType); +} + +void ClearKeyCDM::LoadSession(uint32_t aPromiseId, SessionType aSessionType, + const char* aSessionId, uint32_t aSessionIdSize) { + mSessionManager->LoadSession(aPromiseId, aSessionId, aSessionIdSize); +} + +void ClearKeyCDM::UpdateSession(uint32_t aPromiseId, const char* aSessionId, + uint32_t aSessionIdSize, + const uint8_t* aResponse, + uint32_t aResponseSize) { + mSessionManager->UpdateSession(aPromiseId, aSessionId, aSessionIdSize, + aResponse, aResponseSize); +} + +void ClearKeyCDM::CloseSession(uint32_t aPromiseId, const char* aSessionId, + uint32_t aSessionIdSize) { + mSessionManager->CloseSession(aPromiseId, aSessionId, aSessionIdSize); +} + +void ClearKeyCDM::RemoveSession(uint32_t aPromiseId, const char* aSessionId, + uint32_t aSessionIdSize) { + mSessionManager->RemoveSession(aPromiseId, aSessionId, aSessionIdSize); +} + +void ClearKeyCDM::TimerExpired(void* aContext) { + // Clearkey is not interested in timers, so this method has not been + // implemented. + assert(false); +} + +Status ClearKeyCDM::Decrypt(const InputBuffer_2& aEncryptedBuffer, + DecryptedBlock* aDecryptedBuffer) { + if (mIsProtectionQueryEnabled) { + // Piggyback this check onto Decrypt calls. If Clearkey implements a timer + // based approach for firing events, we could instead trigger the check + // using that mechanism. + mSessionManager->QueryOutputProtectionStatusIfNeeded(); + } + return mSessionManager->Decrypt(aEncryptedBuffer, aDecryptedBuffer); +} + +Status ClearKeyCDM::InitializeAudioDecoder( + const AudioDecoderConfig_2& aAudioDecoderConfig) { + // Audio decoding is not supported by Clearkey because Widevine doesn't + // support it and Clearkey's raison d'etre is to provide test coverage + // for paths that Widevine will exercise in the wild. + return Status::kDecodeError; +} + +Status ClearKeyCDM::InitializeVideoDecoder( + const VideoDecoderConfig_2& aVideoDecoderConfig) { +#ifdef ENABLE_WMF + mVideoDecoder = new VideoDecoder(mHost); + return mVideoDecoder->InitDecode(aVideoDecoderConfig); +#else + return Status::kDecodeError; +#endif +} + +void ClearKeyCDM::DeinitializeDecoder(StreamType aDecoderType) { +#ifdef ENABLE_WMF + if (aDecoderType == StreamType::kStreamTypeVideo) { + mVideoDecoder->DecodingComplete(); + mVideoDecoder = nullptr; + } +#endif +} + +void ClearKeyCDM::ResetDecoder(StreamType aDecoderType) { +#ifdef ENABLE_WMF + if (aDecoderType == StreamType::kStreamTypeVideo) { + mVideoDecoder->Reset(); + } +#endif +} + +Status ClearKeyCDM::DecryptAndDecodeFrame(const InputBuffer_2& aEncryptedBuffer, + VideoFrame* aVideoFrame) { +#ifdef ENABLE_WMF + if (mIsProtectionQueryEnabled) { + // Piggyback this check onto Decrypt + Decode. If Clearkey implements a + // timer based approach for firing events, we could instead trigger the + // check using that mechanism. + mSessionManager->QueryOutputProtectionStatusIfNeeded(); + } + return mVideoDecoder->Decode(aEncryptedBuffer, aVideoFrame); +#else + return Status::kDecodeError; +#endif +} + +Status ClearKeyCDM::DecryptAndDecodeSamples( + const InputBuffer_2& aEncryptedBuffer, AudioFrames* aAudioFrame) { + // Audio decoding is not supported by Clearkey because Widevine doesn't + // support it and Clearkey's raison d'etre is to provide test coverage + // for paths that Widevine will exercise in the wild. + return Status::kDecodeError; +} + +void ClearKeyCDM::OnPlatformChallengeResponse( + const PlatformChallengeResponse& aResponse) { + // This function should never be called and is not supported. + assert(false); +} + +void ClearKeyCDM::OnQueryOutputProtectionStatus( + QueryResult aResult, uint32_t aLinkMask, uint32_t aOutputProtectionMask) { + // The higher level GMP machinery should not forward us query information + // unless we've requested it (even if mutiple CDMs exist at once and some + // others are reqeusting this info). If this assert fires we're violating + // that. + MOZ_ASSERT(mIsProtectionQueryEnabled, + "Should only receive a protection status " + "mIsProtectionQueryEnabled is true"); + // The session manager handles the guts of this for ClearKey. + mSessionManager->OnQueryOutputProtectionStatus(aResult, aLinkMask, + aOutputProtectionMask); +} + +void ClearKeyCDM::OnStorageId(uint32_t aVersion, const uint8_t* aStorageId, + uint32_t aStorageIdSize) { + // This function should never be called and is not supported. + assert(false); +} + +void ClearKeyCDM::Destroy() { + mSessionManager->DecryptingComplete(); +#ifdef ENABLE_WMF + // If we have called 'DeinitializeDecoder' mVideoDecoder will be null. + if (mVideoDecoder) { + mVideoDecoder->DecodingComplete(); + } +#endif + delete this; +} + +void ClearKeyCDM::EnableProtectionQuery() { + MOZ_ASSERT(!mIsProtectionQueryEnabled, + "Should not be called more than once per CDM"); + mIsProtectionQueryEnabled = true; +} |