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      1 /*
      2  * Copyright (C) 2013 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 MEDIA_HTTP_H_
     18 
     19 #define MEDIA_HTTP_H_
     20 
     21 #include <media/stagefright/foundation/AString.h>
     22 
     23 #include "include/HTTPBase.h"
     24 
     25 namespace android {
     26 
     27 struct IMediaHTTPConnection;
     28 
     29 struct MediaHTTP : public HTTPBase {
     30     MediaHTTP(const sp<IMediaHTTPConnection> &conn);
     31 
     32     virtual status_t connect(
     33             const char *uri,
     34             const KeyedVector<String8, String8> *headers,
     35             off64_t offset);
     36 
     37     virtual void disconnect();
     38 
     39     virtual status_t initCheck() const;
     40 
     41     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
     42 
     43     virtual status_t getSize(off64_t *size);
     44 
     45     virtual uint32_t flags();
     46 
     47     virtual status_t reconnectAtOffset(off64_t offset);
     48 
     49 protected:
     50     virtual ~MediaHTTP();
     51 
     52     virtual sp<DecryptHandle> DrmInitialization(const char* mime);
     53     virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
     54     virtual String8 getUri();
     55     virtual String8 getMIMEType() const;
     56 
     57 private:
     58     status_t mInitCheck;
     59     sp<IMediaHTTPConnection> mHTTPConnection;
     60 
     61     KeyedVector<String8, String8> mLastHeaders;
     62     AString mLastURI;
     63 
     64     bool mCachedSizeValid;
     65     off64_t mCachedSize;
     66 
     67     sp<DecryptHandle> mDecryptHandle;
     68     DrmManagerClient *mDrmManagerClient;
     69 
     70     void clearDRMState_l();
     71 
     72     DISALLOW_EVIL_CONSTRUCTORS(MediaHTTP);
     73 };
     74 
     75 }  // namespace android
     76 
     77 #endif  // MEDIA_HTTP_H_
     78