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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 A_MPEG4_ELEM_ASSEMBLER_H_
     18 
     19 #define A_MPEG4_ELEM_ASSEMBLER_H_
     20 
     21 #include "ARTPAssembler.h"
     22 
     23 #include <media/stagefright/foundation/AString.h>
     24 
     25 #include <utils/List.h>
     26 #include <utils/RefBase.h>
     27 
     28 #include <OMX_Audio.h>
     29 
     30 namespace android {
     31 
     32 struct ABuffer;
     33 struct AMessage;
     34 
     35 struct AMPEG4ElementaryAssembler : public ARTPAssembler {
     36     AMPEG4ElementaryAssembler(
     37             const sp<AMessage> &notify, const AString &desc,
     38             const AString &params);
     39 
     40 protected:
     41     virtual ~AMPEG4ElementaryAssembler();
     42 
     43     virtual AssemblyStatus assembleMore(const sp<ARTPSource> &source);
     44     virtual void onByeReceived();
     45     virtual void packetLost();
     46 
     47 private:
     48     sp<AMessage> mNotifyMsg;
     49     bool mIsGeneric;
     50     AString mParams;
     51 
     52     unsigned mSizeLength;
     53     unsigned mIndexLength;
     54     unsigned mIndexDeltaLength;
     55     unsigned mCTSDeltaLength;
     56     unsigned mDTSDeltaLength;
     57     bool mRandomAccessIndication;
     58     unsigned mStreamStateIndication;
     59     unsigned mAuxiliaryDataSizeLength;
     60     bool mHasAUHeader;
     61 
     62     int32_t mChannelConfig;
     63     size_t mSampleRateIndex;
     64 
     65     uint32_t mAccessUnitRTPTime;
     66     bool mNextExpectedSeqNoValid;
     67     uint32_t mNextExpectedSeqNo;
     68     bool mAccessUnitDamaged;
     69     List<sp<ABuffer> > mPackets;
     70 
     71     AssemblyStatus addPacket(const sp<ARTPSource> &source);
     72     void submitAccessUnit();
     73 
     74     DISALLOW_EVIL_CONSTRUCTORS(AMPEG4ElementaryAssembler);
     75 };
     76 
     77 }  // namespace android
     78 
     79 #endif  // A_MPEG4_ELEM_ASSEMBLER_H_
     80