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// RTP sink for AC3 audio
19// C++ header
20
21#ifndef _AC3_AUDIO_RTP_SINK_HH
22#define _AC3_AUDIO_RTP_SINK_HH
23
24#ifndef _AUDIO_RTP_SINK_HH
25#include "AudioRTPSink.hh"
26#endif
27
28class AC3AudioRTPSink: public AudioRTPSink {
29public:
30 static AC3AudioRTPSink* createNew(UsageEnvironment& env,
31 Groupsock* RTPgs,
32 u_int8_t rtpPayloadFormat,
33 u_int32_t rtpTimestampFrequency);
34
35protected:
36 AC3AudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
37 u_int8_t rtpPayloadFormat,
38 u_int32_t rtpTimestampFrequency);
39 // called only by createNew()
40
41 virtual ~AC3AudioRTPSink();
42
43private: // redefined virtual functions:
44 virtual Boolean frameCanAppearAfterPacketStart(unsigned char const* frameStart,
45 unsigned numBytesInFrame) const;
46 virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
47 unsigned char* frameStart,
48 unsigned numBytesInFrame,
49 struct timeval framePresentationTime,
50 unsigned numRemainingBytes);
51 virtual unsigned specialHeaderSize() const;
52
53private:
54 unsigned char fTotNumFragmentsUsed; // used only if a frame gets fragmented across multiple packets
55};
56
57#endif
58