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      1 /*
      2  * Copyright (C) 2010 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 HTTP_LIVE_SOURCE_H_
     18 
     19 #define HTTP_LIVE_SOURCE_H_
     20 
     21 #include "NuPlayer.h"
     22 #include "NuPlayerSource.h"
     23 
     24 namespace android {
     25 
     26 struct LiveSession;
     27 
     28 struct NuPlayer::HTTPLiveSource : public NuPlayer::Source {
     29     HTTPLiveSource(
     30             const sp<AMessage> &notify,
     31             const sp<IMediaHTTPService> &httpService,
     32             const char *url,
     33             const KeyedVector<String8, String8> *headers);
     34 
     35     virtual void prepareAsync();
     36     virtual void start();
     37 
     38     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
     39     virtual sp<AMessage> getFormat(bool audio);
     40 
     41     virtual status_t feedMoreTSData();
     42     virtual status_t getDuration(int64_t *durationUs);
     43     virtual size_t getTrackCount() const;
     44     virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
     45     virtual status_t selectTrack(size_t trackIndex, bool select);
     46     virtual status_t seekTo(int64_t seekTimeUs);
     47 
     48 protected:
     49     virtual ~HTTPLiveSource();
     50 
     51     virtual void onMessageReceived(const sp<AMessage> &msg);
     52 
     53 private:
     54     enum Flags {
     55         // Don't log any URLs.
     56         kFlagIncognito = 1,
     57     };
     58 
     59     enum {
     60         kWhatSessionNotify,
     61         kWhatFetchSubtitleData,
     62     };
     63 
     64     sp<IMediaHTTPService> mHTTPService;
     65     AString mURL;
     66     KeyedVector<String8, String8> mExtraHeaders;
     67     uint32_t mFlags;
     68     status_t mFinalResult;
     69     off64_t mOffset;
     70     sp<ALooper> mLiveLooper;
     71     sp<LiveSession> mLiveSession;
     72     int32_t mFetchSubtitleDataGeneration;
     73 
     74     void onSessionNotify(const sp<AMessage> &msg);
     75 
     76     DISALLOW_EVIL_CONSTRUCTORS(HTTPLiveSource);
     77 };
     78 
     79 }  // namespace android
     80 
     81 #endif  // HTTP_LIVE_SOURCE_H_
     82