/**********
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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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// MPEG4-GENERIC ("audio", "video", or "application") RTP stream sources
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// C++ header
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#ifndef _MPEG4_GENERIC_RTP_SOURCE_HH
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#define _MPEG4_GENERIC_RTP_SOURCE_HH
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#ifndef _MULTI_FRAMED_RTP_SOURCE_HH
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#include "MultiFramedRTPSource.hh"
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#endif
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class MPEG4GenericRTPSource: public MultiFramedRTPSource {
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public:
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static MPEG4GenericRTPSource*
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createNew(UsageEnvironment& env, Groupsock* RTPgs,
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unsigned char rtpPayloadFormat,
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unsigned rtpTimestampFrequency,
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char const* mediumName,
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char const* mode, unsigned sizeLength, unsigned indexLength,
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unsigned indexDeltaLength
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// add other parameters later
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);
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// mediumName is "audio", "video", or "application"
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// it *cannot* be NULL
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protected:
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virtual ~MPEG4GenericRTPSource();
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private:
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MPEG4GenericRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
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unsigned char rtpPayloadFormat,
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unsigned rtpTimestampFrequency,
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char const* mediumName,
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char const* mode,
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unsigned sizeLength, unsigned indexLength,
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unsigned indexDeltaLength
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);
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// called only by createNew()
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private:
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// redefined virtual functions:
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virtual Boolean processSpecialHeader(BufferedPacket* packet,
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unsigned& resultSpecialHeaderSize);
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virtual char const* MIMEtype() const;
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private:
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char* fMIMEType;
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char* fMode;
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unsigned fSizeLength, fIndexLength, fIndexDeltaLength;
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unsigned fNumAUHeaders; // in the most recently read packet
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unsigned fNextAUHeader; // index of the next AU Header to read
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struct AUHeader* fAUHeaders;
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friend class MPEG4GenericBufferedPacket;
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};
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// A function that looks up the sampling frequency from an
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// "AudioSpecificConfig" string. (0 means 'unknown')
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unsigned samplingFrequencyFromAudioSpecificConfig(char const* configStr);
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#endif
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