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_RTP_ASSEMBLER_H_
18
19#define A_RTP_ASSEMBLER_H_
20
21#include <media/stagefright/foundation/ABase.h>
22#include <utils/List.h>
23#include <utils/RefBase.h>
24
25namespace android {
26
27struct ABuffer;
28struct ARTPSource;
29
30struct ARTPAssembler : public RefBase {
31    enum AssemblyStatus {
32        MALFORMED_PACKET,
33        WRONG_SEQUENCE_NUMBER,
34        NOT_ENOUGH_DATA,
35        OK
36    };
37
38    ARTPAssembler();
39
40    void onPacketReceived(const sp<ARTPSource> &source);
41    virtual void onByeReceived() = 0;
42
43protected:
44    virtual AssemblyStatus assembleMore(const sp<ARTPSource> &source) = 0;
45    virtual void packetLost() = 0;
46
47    static void CopyTimes(const sp<ABuffer> &to, const sp<ABuffer> &from);
48
49    static sp<ABuffer> MakeADTSCompoundFromAACFrames(
50            unsigned profile,
51            unsigned samplingFreqIndex,
52            unsigned channelConfig,
53            const List<sp<ABuffer> > &frames);
54
55    static sp<ABuffer> MakeCompoundFromPackets(
56            const List<sp<ABuffer> > &frames);
57
58private:
59    int64_t mFirstFailureTimeUs;
60
61    DISALLOW_EVIL_CONSTRUCTORS(ARTPAssembler);
62};
63
64}  // namespace android
65
66#endif  // A_RTP_ASSEMBLER_H_
67