1/**********
2This library is free software; you can redistribute it and/or modify it under
3the terms of the GNU Lesser General Public License as published by the
4Free Software Foundation; either version 3 of the License, or (at your
5option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
6
7This library is distributed in the hope that it will be useful, but WITHOUT
8ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
9FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
10more details.
11
12You should have received a copy of the GNU Lesser General Public License
13along with this library; if not, write to the Free Software Foundation, Inc.,
1451 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15**********/
16// "liveMedia"
17// Copyright (c) 1996-2020 Live Networks, Inc. All rights reserved.
18// Raw Video RTP Sources (RFC 4175)
19// C++ header
20
21#ifndef _RAW_VIDEO_RTP_SOURCE_HH
22#define _RAW_VIDEO_RTP_SOURCE_HH
23
24#ifndef _MULTI_FRAMED_RTP_SOURCE_HH
25#include "MultiFramedRTPSource.hh"
26#endif
27
28class RawVideoRTPSource: public MultiFramedRTPSource {
29public:
30 static RawVideoRTPSource* createNew(UsageEnvironment& env, Groupsock* RTPgs,
31 unsigned char rtpPayloadFormat,
32 unsigned rtpTimestampFrequency);
33
34 u_int16_t currentLineNumber() const; // of the most recently-read/processed scan line
35 u_int8_t currentLineFieldId() const; // of the most recently-read/processed scan line (0 or 1)
36 u_int16_t currentOffsetWithinLine() const; // of the most recently-read/processed scan line
37
38protected:
39 RawVideoRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
40 unsigned char rtpPayloadFormat,
41 unsigned rtpTimestampFrequency = 90000);
42 // called only by createNew()
43
44 virtual ~RawVideoRTPSource();
45
46protected:
47 // redefined virtual functions:
48 virtual Boolean processSpecialHeader(BufferedPacket* packet,
49 unsigned& resultSpecialHeaderSize);
50 virtual char const* MIMEtype() const;
51
52private:
53 unsigned fNumLines; // in the most recently read packet
54 unsigned fNextLine; // index of the next AU Header to read
55 struct LineHeader* fLineHeaders;
56
57 friend class RawVideoBufferedPacket;
58};
59
60#endif
61