/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// "liveMedia"
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// Copyright (c) 1996-2017 Live Networks, Inc. All rights reserved.
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// RTP sink for MPEG-4 audio, using LATM multiplexing (RFC 3016)
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// (Note that the initial 'size' field is assumed to be present at the start of
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// each frame.)
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// C++ header
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#ifndef _MPEG4_LATM_AUDIO_RTP_SINK_HH
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#define _MPEG4_LATM_AUDIO_RTP_SINK_HH
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#ifndef _AUDIO_RTP_SINK_HH
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#include "AudioRTPSink.hh"
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#endif
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class MPEG4LATMAudioRTPSink: public AudioRTPSink {
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public:
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static MPEG4LATMAudioRTPSink* createNew(UsageEnvironment& env,
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Groupsock* RTPgs,
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unsigned char rtpPayloadFormat,
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u_int32_t rtpTimestampFrequency,
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char const* streamMuxConfigString,
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unsigned numChannels,
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Boolean allowMultipleFramesPerPacket = False);
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protected:
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MPEG4LATMAudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
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unsigned char rtpPayloadFormat,
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u_int32_t rtpTimestampFrequency,
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char const* streamMuxConfigString,
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unsigned numChannels,
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Boolean allowMultipleFramesPerPacket);
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// called only by createNew()
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virtual ~MPEG4LATMAudioRTPSink();
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private: // redefined virtual functions:
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virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
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unsigned char* frameStart,
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unsigned numBytesInFrame,
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struct timeval framePresentationTime,
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unsigned numRemainingBytes);
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virtual Boolean
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frameCanAppearAfterPacketStart(unsigned char const* frameStart,
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unsigned numBytesInFrame) const;
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virtual char const* auxSDPLine(); // for the "a=fmtp:" SDP line
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private:
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char const* fStreamMuxConfigString;
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char* fFmtpSDPLine;
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Boolean fAllowMultipleFramesPerPacket;
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};
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#endif
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