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Widevine CENC drm engine update: enable decryption

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This import syncs to the widevine git repostiory change
commit ab3e1e43642cf36900f55169597a33f222709fdb

Change-Id: I3a6f1e2969e5fe7ed1ca12f90b0eb0a3b7899835
This commit is contained in:
Jeff Tinker
2013-04-09 13:24:32 -07:00
parent c0f1d6750e
commit 826576315c
14 changed files with 630 additions and 143 deletions
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50
libwvdrmengine/cdm/core/src/crypto_engine.cpp
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@@ -9,6 +9,7 @@
#include "log.h"
#include "OEMCryptoCENC.h"
#include "properties.h"
#include "wv_cdm_constants.h"
namespace wvcdm {
@@ -23,7 +24,11 @@ Lock CryptoEngine::crypto_engine_lock_;
// CryptoEngine methods
CryptoEngine::CryptoEngine() : initialized_(false) {}
CryptoEngine::CryptoEngine() : initialized_(false),
properties_valid_(false),
oem_crypto_use_secure_buffers_(false),
oem_crypto_use_fifo_(false),
oem_crypto_use_userspace_buffers_(false) {}
CryptoEngine::~CryptoEngine() {
if (initialized_) {
@@ -61,6 +66,29 @@ void CryptoEngine::DeleteInstance() {
}
bool CryptoEngine::Init() {
properties_valid_ = true;
if (!Properties::GetInstance()->GetProperty(
kPropertyKeyOemCryptoUseSecureBuffers,
oem_crypto_use_secure_buffers_)) {
LOGW("CryptoEngine::CryptoEngine: Unable to access property - oemcrypto use secure buffers");
properties_valid_ = false;
}
if (!Properties::GetInstance()->GetProperty(
kPropertyKeyOemCryptoUseFifo,
oem_crypto_use_fifo_)) {
LOGW("CryptoEngine::CryptoEngine: Unable to access property - oemcrypto use fifos");
properties_valid_ = false;
}
if (!Properties::GetInstance()->GetProperty(
kPropertyKeyOemCryptoUseUserSpaceBuffers,
oem_crypto_use_userspace_buffers_)) {
LOGW("CryptoEngine::CryptoEngine: Unable to access property - oemcrypto use userspace buffers");
properties_valid_ = false;
}
LOGV("CryptoEngine::Init: Lock");
AutoLock auto_lock(crypto_lock_);
if (!initialized_) {
@@ -175,10 +203,22 @@ bool CryptoEngine::GetToken(std::string* token) {
return true;
}
CdmResponseType CryptoEngine::Query(CdmQueryMap* key_info) {
LOGV("CryptoEngine::GetToken: Query");
(*key_info)[QUERY_KEY_SECURITY_LEVEL] = OEMCrypto_SecurityLevel();
return NO_ERROR;
CryptoEngine::SecurityLevel CryptoEngine::GetSecurityLevel() {
std::string security_level = OEMCrypto_SecurityLevel();
if ((security_level.size() != 2) ||
(security_level.at(0) != 'L')) {
return kSecurityLevelUnknown;
}
switch (security_level.at(1)) {
case '1': return kSecurityLevelL1;
case '2': return kSecurityLevelL2;
case '3': return kSecurityLevelL3;
default : return kSecurityLevelUnknown;
}
return kSecurityLevelUnknown;
}
}; // namespace wvcdm