1 /**
2  * Copyright (C) 2023 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 RTPEXTENSION_H
18 #define RTPEXTENSION_H
19 
20 #include <binder/Parcel.h>
21 #include <binder/Parcelable.h>
22 #include <binder/Status.h>
23 #include <stdint.h>
24 
25 namespace android
26 {
27 
28 namespace telephony
29 {
30 
31 namespace imsmedia
32 {
33 
34 /** Native representation of android.telephony.imsmedia.RtpHeaderExtension */
35 
36 /**
37  * The class to encapsulate RTP header extension.
38  * Per RFC8285, an RTP header extension consists of both a local identifier in the range 1-14, an
39  * 8-bit length indicator and a number of extension data bytes equivalent to the stated length.
40  */
41 class RtpHeaderExtension : public Parcelable
42 {
43 public:
44     RtpHeaderExtension();
45     RtpHeaderExtension(const RtpHeaderExtension& extension);
46     virtual ~RtpHeaderExtension();
47     RtpHeaderExtension& operator=(const RtpHeaderExtension& extension);
48     bool operator==(const RtpHeaderExtension& extension) const;
49     bool operator!=(const RtpHeaderExtension& extension) const;
50     virtual status_t writeToParcel(Parcel* parcel) const;
51     virtual status_t readFromParcel(const Parcel* in);
52     int32_t getLocalIdentifier();
53     void setLocalIdentifier(int32_t id);
54     uint8_t* getExtensionData() const;
55     void setExtensionData(const uint8_t* data, const int32_t size);
56     int32_t getExtensionDataSize();
57     void setExtensionDataSize(int32_t size);
58 
59 protected:
60     // The local identifier for this RTP header extension.
61     int32_t mLocalIdentifier;
62     // The data for this RTP header extension.
63     uint8_t* mExtensionData;
64     // The length of the mExtensionData
65     int32_t mExtensionDataSize;
66 };
67 }  // namespace imsmedia
68 }  // namespace telephony
69 }  // namespace android
70 
71 #endif