ARTPAssembler.h revision 39ddf8e0f18766f7ba1e3246b774aa6ebd93eea8 
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/RefBase.h>
23
24namespace android {
25
26struct ABuffer;
27struct ARTPSource;
28
29struct ARTPAssembler : public RefBase {
30    enum AssemblyStatus {
31        MALFORMED_PACKET,
32        WRONG_SEQUENCE_NUMBER,
33        NOT_ENOUGH_DATA,
34        OK
35    };
36
37    ARTPAssembler();
38
39    void onPacketReceived(const sp<ARTPSource> &source);
40    virtual void onByeReceived() = 0;
41
42protected:
43    static void PropagateTimes(
44        const sp<ABuffer> &from, const sp<ABuffer> &to);
45
46    virtual AssemblyStatus assembleMore(const sp<ARTPSource> &source) = 0;
47    virtual void packetLost() = 0;
48
49private:
50    int64_t mFirstFailureTimeUs;
51
52    DISALLOW_EVIL_CONSTRUCTORS(ARTPAssembler);
53};
54
55}  // namespace android
56
57#endif  // A_RTP_ASSEMBLER_H_
58