gecko-dev/media/gmp-clearkey/0.1/ClearKeySession.cpp

81 строка
2.1 KiB
C++

/*
* Copyright 2015, Mozilla Foundation and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "BigEndian.h"
#include "ClearKeyDecryptionManager.h"
#include "ClearKeySession.h"
#include "ClearKeyUtils.h"
#include "ClearKeyStorage.h"
#include "psshparser/PsshParser.h"
#include <assert.h>
#include <string.h>
using namespace mozilla;
using namespace cdm;
using namespace std;
ClearKeySession::ClearKeySession(const std::string& aSessionId,
SessionType aSessionType)
: mSessionId(aSessionId)
, mSessionType(aSessionType)
{
CK_LOGD("ClearKeySession ctor %p", this);
}
ClearKeySession::~ClearKeySession()
{
CK_LOGD("ClearKeySession dtor %p", this);
}
bool
ClearKeySession::Init(InitDataType aInitDataType,
const uint8_t* aInitData,
uint32_t aInitDataSize)
{
CK_LOGD("ClearKeySession::Init");
if (aInitDataType == InitDataType::kCenc) {
ParseCENCInitData(aInitData, aInitDataSize, mKeyIds);
} else if (aInitDataType == InitDataType::kKeyIds) {
ClearKeyUtils::ParseKeyIdsInitData(aInitData, aInitDataSize, mKeyIds);
} else if (aInitDataType == InitDataType::kWebM &&
aInitDataSize <= kMaxWebmInitDataSize) {
// "webm" initData format is simply the raw bytes of the keyId.
vector<uint8_t> keyId;
keyId.assign(aInitData, aInitData+aInitDataSize);
mKeyIds.push_back(keyId);
}
if (mKeyIds.empty()) {
return false;
}
return true;
}
SessionType
ClearKeySession::Type() const
{
return mSessionType;
}
void
ClearKeySession::AddKeyId(const KeyId& aKeyId)
{
mKeyIds.push_back(aKeyId);
}