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_AUDIO_ASSEMBLER_H_
18 
19 #define A_MPEG4_AUDIO_ASSEMBLER_H_
20 
21 #include "ARTPAssembler.h"
22 
23 #include <utils/List.h>
24 
25 #include <stdint.h>
26 
27 namespace android {
28 
29 struct AMessage;
30 struct AString;
31 
32 struct AMPEG4AudioAssembler : public ARTPAssembler {
33     AMPEG4AudioAssembler(
34             const sp<AMessage> &notify, const AString &params);
35 
36 protected:
37     virtual ~AMPEG4AudioAssembler();
38 
39     virtual AssemblyStatus assembleMore(const sp<ARTPSource> &source);
40     virtual void onByeReceived();
41     virtual void packetLost();
42 
43 private:
44     sp<AMessage> mNotifyMsg;
45 
46     bool mMuxConfigPresent;
47     unsigned mNumSubFrames;
48     unsigned mFrameLengthType;
49     ssize_t mFixedFrameLength;
50     bool mOtherDataPresent;
51     unsigned mOtherDataLenBits;
52 
53     uint32_t mAccessUnitRTPTime;
54     bool mNextExpectedSeqNoValid;
55     uint32_t mNextExpectedSeqNo;
56     bool mAccessUnitDamaged;
57     List<sp<ABuffer> > mPackets;
58 
59     AssemblyStatus addPacket(const sp<ARTPSource> &source);
60     void submitAccessUnit();
61 
62     sp<ABuffer> removeLATMFraming(const sp<ABuffer> &buffer);
63 
64     DISALLOW_EVIL_CONSTRUCTORS(AMPEG4AudioAssembler);
65 };
66 
67 }  // namespace android
68 
69 #endif  // A_MPEG4_AUDIO_ASSEMBLER_H_
70