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      1 /*
      2  * Copyright (C) 2012 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 SDP_LOADER_H_
     18 
     19 #define SDP_LOADER_H_
     20 
     21 #include <media/stagefright/foundation/AMessage.h>
     22 #include <media/stagefright/foundation/AHandler.h>
     23 #include <utils/String8.h>
     24 
     25 namespace android {
     26 
     27 struct HTTPBase;
     28 struct MediaHTTPService;
     29 
     30 struct SDPLoader : public AHandler {
     31     enum Flags {
     32         // Don't log any URLs.
     33         kFlagIncognito = 1,
     34     };
     35     enum {
     36         kWhatSDPLoaded = 'sdpl'
     37     };
     38     SDPLoader(
     39             const sp<AMessage> &notify,
     40             uint32_t flags,
     41             const sp<MediaHTTPService> &httpService);
     42 
     43     void load(const char* url, const KeyedVector<String8, String8> *headers);
     44 
     45     void cancel();
     46 
     47 protected:
     48     virtual ~SDPLoader() {}
     49 
     50     virtual void onMessageReceived(const sp<AMessage> &msg);
     51 
     52 private:
     53     enum {
     54         kWhatLoad = 'load',
     55     };
     56 
     57     void onLoad(const sp<AMessage> &msg);
     58 
     59     sp<AMessage> mNotify;
     60     const char* mUrl;
     61     uint32_t mFlags;
     62     sp<ALooper> mNetLooper;
     63     bool mCancelled;
     64 
     65     sp<HTTPBase> mHTTPDataSource;
     66 
     67     DISALLOW_EVIL_CONSTRUCTORS(SDPLoader);
     68 };
     69 
     70 }  // namespace android
     71 
     72 #endif  // SDP_LOADER_H_
     73