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// H.265 Video RTP Sources
19// C++ header
20
21#ifndef _H265_VIDEO_RTP_SOURCE_HH
22#define _H265_VIDEO_RTP_SOURCE_HH
23
24#ifndef _MULTI_FRAMED_RTP_SOURCE_HH
25#include "MultiFramedRTPSource.hh"
26#endif
27
28class H265VideoRTPSource: public MultiFramedRTPSource {
29public:
30 static H265VideoRTPSource*
31 createNew(UsageEnvironment& env, Groupsock* RTPgs,
32 unsigned char rtpPayloadFormat,
33 Boolean expectDONFields = False,
34 unsigned rtpTimestampFrequency = 90000);
35 // "expectDONFields" is True iff we expect incoming H.265/RTP packets to contain
36 // DONL and DOND fields. I.e., if "tx-mode == "MST" or sprop-depack-buf-nalus > 0".
37
38 u_int64_t currentNALUnitAbsDon() const { return fCurrentNALUnitAbsDon; }
39 // the 'absolute decoding order number (AbsDon)' for the most-recently delivered NAL unit
40
41protected:
42 H265VideoRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
43 unsigned char rtpPayloadFormat,
44 Boolean expectDONFields,
45 unsigned rtpTimestampFrequency);
46 // called only by createNew()
47
48 virtual ~H265VideoRTPSource();
49
50protected:
51 // redefined virtual functions:
52 virtual Boolean processSpecialHeader(BufferedPacket* packet,
53 unsigned& resultSpecialHeaderSize);
54 virtual char const* MIMEtype() const;
55
56private:
57 void computeAbsDonFromDON(u_int16_t DON);
58
59private:
60 friend class H265BufferedPacket;
61 Boolean fExpectDONFields;
62 unsigned char fCurPacketNALUnitType;
63 u_int16_t fPreviousNALUnitDON;
64 u_int64_t fCurrentNALUnitAbsDon;
65};
66
67#endif
68