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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 STREAMING_SOURCE_H_
     18 
     19 #define STREAMING_SOURCE_H_
     20 
     21 #include "NuPlayer.h"
     22 #include "NuPlayerSource.h"
     23 
     24 namespace android {
     25 
     26 struct ABuffer;
     27 struct ATSParser;
     28 struct AnotherPacketSource;
     29 
     30 struct NuPlayer::StreamingSource : public NuPlayer::Source {
     31     StreamingSource(
     32             const sp<AMessage> &notify,
     33             const sp<IStreamSource> &source);
     34 
     35     virtual status_t getDefaultBufferingSettings(
     36             BufferingSettings* buffering /* nonnull */) override;
     37     virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
     38 
     39     virtual void prepareAsync();
     40     virtual void start();
     41 
     42     virtual status_t feedMoreTSData();
     43 
     44     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
     45 
     46     virtual bool isRealTime() const;
     47 
     48 protected:
     49     virtual ~StreamingSource();
     50 
     51     virtual void onMessageReceived(const sp<AMessage> &msg);
     52 
     53     virtual sp<AMessage> getFormat(bool audio);
     54 
     55 private:
     56     enum {
     57         kWhatReadBuffer,
     58     };
     59     sp<IStreamSource> mSource;
     60     status_t mFinalResult;
     61     sp<NuPlayerStreamListener> mStreamListener;
     62     sp<ATSParser> mTSParser;
     63 
     64     bool mBuffering;
     65     Mutex mBufferingLock;
     66     sp<ALooper> mLooper;
     67 
     68     void setError(status_t err);
     69     sp<AnotherPacketSource> getSource(bool audio);
     70     bool haveSufficientDataOnAllTracks();
     71     status_t postReadBuffer();
     72     void onReadBuffer();
     73 
     74     DISALLOW_EVIL_CONSTRUCTORS(StreamingSource);
     75 };
     76 
     77 }  // namespace android
     78 
     79 #endif  // STREAMING_SOURCE_H_
     80