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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 NUPLAYER_STREAM_LISTENER_H_
     18 
     19 #define NUPLAYER_STREAM_LISTENER_H_
     20 
     21 #include "NuPlayer.h"
     22 
     23 #include <media/IStreamSource.h>
     24 
     25 namespace android {
     26 
     27 class MemoryDealer;
     28 
     29 struct NuPlayer::NuPlayerStreamListener : public BnStreamListener {
     30     NuPlayerStreamListener(
     31             const sp<IStreamSource> &source,
     32             const sp<AHandler> &targetHandler);
     33 
     34     virtual void queueBuffer(size_t index, size_t size);
     35 
     36     virtual void issueCommand(
     37             Command cmd, bool synchronous, const sp<AMessage> &extra);
     38 
     39     void start();
     40     ssize_t read(void *data, size_t size, sp<AMessage> *extra);
     41 
     42 private:
     43     enum {
     44         kNumBuffers = 8,
     45         kBufferSize = 188 * 10
     46     };
     47 
     48     struct QueueEntry {
     49         bool mIsCommand;
     50 
     51         size_t mIndex;
     52         size_t mSize;
     53         size_t mOffset;
     54 
     55         Command mCommand;
     56         sp<AMessage> mExtra;
     57     };
     58 
     59     Mutex mLock;
     60 
     61     sp<IStreamSource> mSource;
     62     sp<AHandler> mTargetHandler;
     63     sp<MemoryDealer> mMemoryDealer;
     64     Vector<sp<IMemory> > mBuffers;
     65     List<QueueEntry> mQueue;
     66     bool mEOS;
     67     bool mSendDataNotification;
     68 
     69     DISALLOW_EVIL_CONSTRUCTORS(NuPlayerStreamListener);
     70 };
     71 
     72 }  // namespace android
     73 
     74 #endif // NUPLAYER_STREAM_LISTENER_H_
     75