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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef __DRM_CONTENT_H__
     18 #define __DRM_CONTENT_H__
     19 
     20 #include <Drm2CommonTypes.h>
     21 #include <dcf/DrmDcfContainer.h>
     22 
     23 /////////////raw content
     24 class DrmRawContent
     25 {
     26 public:
     27     /**
     28      * constructor for DrmRawContent, used to parse DCF
     29      * \param inRawData  input stream of raw data.
     30      */
     31     DrmRawContent(istream& inRawData);
     32 
     33     /** Destructor for DrmRawContent */
     34     ~DrmRawContent();
     35 
     36     /**
     37      * get DCF container
     38      * \param none
     39      * \return
     40      *   the DCF container
     41      */
     42     vector<DcfContainer*> getContents(void) const;
     43 
     44     /**
     45      * get the length of DCF hash
     46      * \param none
     47      * \return
     48      *   the length of DCF hash
     49      */
     50     uint32_t getDcfHashLen() const;
     51 
     52     /**
     53      * get DCF hash
     54      * \param outDcfHash  the buffer to store DCF hash
     55      * \return
     56      *   none
     57      */
     58     void getDcfHash(uint8_t* outDcfHash) const;
     59 
     60 PRIVATE:
     61     static const uint32_t DCF_HASH_LEN = 20;
     62     static const uint32_t FIX_HEADER_LEN = 20;
     63     static const uint32_t MAX_PIECE_LEN = (100 * 1024);
     64 
     65     uint8_t mDcfHash[DCF_HASH_LEN];
     66     vector<DcfContainer*> mContainer;
     67 
     68 PRIVATE:
     69     bool parseDcfHeader(const uint8_t* dcfHead);
     70     DrmRawContent(const DrmRawContent& rawContent){}
     71     DrmRawContent& operator=(const DrmRawContent& other){return *this;}
     72 };
     73 
     74 #endif
     75