1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
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
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18
19#ifndef RTSP_EMBEDDED_RTP_H_
20#define RTSP_EMBEDDED_RTP_H_
21
22//#include "oscl_types.h"
23#include "oscl_base.h"
24#include "rtp_packet.h"
25
26#ifdef RTSP_EMB_RTP_DOLLAR_SEQUENCE_BUFFER_SIZE
27#error Hey, somebody is using RTSP_EMB_RTP_DOLLAR_SEQUENCE_BUFFER_SIZE
28#else
29#define RTSP_EMB_RTP_DOLLAR_SEQUENCE_BUFFER_SIZE 4
30#endif
31
32#ifdef RTSP_EMB_RTP_MAX_NUM_BUFFER_FRAGMENTS
33#error Hey, somebody is using RTSP_EMB_RTP_MAX_NUM_BUFFER_FRAGMENTS
34#else
35#define RTSP_EMB_RTP_MAX_NUM_BUFFER_FRAGMENTS 32
36#endif
37
38class RtspEmbeddedRtpPacket
39{
40    public:
41
42        typedef enum
43        {
44            BOUND,
45            UNBOUND,
46            SEEK_ERROR,
47            NOT_ENOUGH_BUFFER_FRAGS,
48            INVALID_RTP_PACKET
49        } Status;
50
51    protected:
52
53        Status  status;
54
55    public:
56
57        inline Status
58        getStatus()
59        {
60            return  status;
61        }
62
63        inline bool
64        isOk()
65        {
66            return ((UNBOUND == status) || (BOUND == status));
67        }
68
69    public:
70
71        typedef uint8   ChannelIdType;
72        typedef uint16  LengthType;
73
74    private:
75
76        RtspEmbeddedRtpPacket(const RtspEmbeddedRtpPacket &);
77        RtspEmbeddedRtpPacket & operator= (const RtspEmbeddedRtpPacket &);
78
79    protected:
80
81//    RTPPacket *       rtpPacket;
82//    ChannelIdType     channelId;
83//    LengthType        length;
84
85        uint8             dollarSequenceBuffer[RTSP_EMB_RTP_DOLLAR_SEQUENCE_BUFFER_SIZE];
86        BufferFragment    fragments[ RTSP_EMB_RTP_MAX_NUM_BUFFER_FRAGMENTS ];
87
88//    LengthType        sizeRemaining;
89        int               currentBufferFragIdx;
90        int               totalNumFragments;
91
92        bool              boundaryReached;
93
94    public:
95
96        RtspEmbeddedRtpPacket()
97                : status(UNBOUND)
98        {}
99
100    protected:
101
102        inline bool checkSanity(RTPPacket *     newRtpPacket,
103                                ChannelIdType   newChannelId,
104                                LengthType      newLength
105                               );
106        inline void buildDollarSequenceBuffer(ChannelIdType   newChannelId,
107                                              LengthType      newLength
108                                             );
109        inline void fillOutBufferFragmentGroupFromPacket(RTPPacket * newRtpPacket);
110        inline void startAccounting();
111
112    public:
113
114        bool        bind(RTPPacket *     newRtpPacket,
115                         ChannelIdType   newChannelId,
116                         LengthType      newLength
117                        );
118
119        void        unbind();
120
121        bool        getRemainingFrags(BufferFragment * &,
122                                      uint32 &
123                                     );
124
125        bool        registerBytesWritten(uint32 bytesWritten);
126};
127
128#endif  // RTSP_EMBEDDED_RTP_H_
129