/usr/include/liveMedia/H264VideoRTPSink.hh is in liblivemedia-dev 2011.12.23-1.
This file is owned by root:root, with mode 0o644.
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This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**********/
// "liveMedia"
// Copyright (c) 1996-2012 Live Networks, Inc. All rights reserved.
// RTP sink for H.264 video (RFC 3984)
// C++ header
#ifndef _H264_VIDEO_RTP_SINK_HH
#define _H264_VIDEO_RTP_SINK_HH
#ifndef _VIDEO_RTP_SINK_HH
#include "VideoRTPSink.hh"
#endif
#ifndef _FRAMED_FILTER_HH
#include "FramedFilter.hh"
#endif
class H264FUAFragmenter;
class H264VideoRTPSink: public VideoRTPSink {
public:
static H264VideoRTPSink* createNew(UsageEnvironment& env,
Groupsock* RTPgs,
unsigned char rtpPayloadFormat);
protected:
H264VideoRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
unsigned char rtpPayloadFormat);
// called only by createNew()
virtual ~H264VideoRTPSink();
protected: // redefined virtual functions:
virtual char const* auxSDPLine();
private: // redefined virtual functions:
virtual Boolean sourceIsCompatibleWithUs(MediaSource& source);
virtual Boolean continuePlaying();
virtual void stopPlaying();
virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
unsigned char* frameStart,
unsigned numBytesInFrame,
struct timeval framePresentationTime,
unsigned numRemainingBytes);
virtual Boolean frameCanAppearAfterPacketStart(unsigned char const* frameStart,
unsigned numBytesInFrame) const;
protected:
H264FUAFragmenter* fOurFragmenter;
private:
char* fFmtpSDPLine;
};
////////// H264FUAFragmenter definition //////////
// Because of the ideosyncracies of the H.264 RTP payload format, we implement
// "H264VideoRTPSink" using a separate "H264FUAFragmenter" class that delivers,
// to the "H264VideoRTPSink", only fragments that will fit within an outgoing
// RTP packet. I.e., we implement fragmentation in this separate "H264FUAFragmenter"
// class, rather than in "H264VideoRTPSink".
// (Note: This class should be used only by "H264VideoRTPSink", or a subclass.)
class H264FUAFragmenter: public FramedFilter {
public:
H264FUAFragmenter(UsageEnvironment& env, FramedSource* inputSource,
unsigned inputBufferMax, unsigned maxOutputPacketSize);
virtual ~H264FUAFragmenter();
Boolean lastFragmentCompletedNALUnit() const { return fLastFragmentCompletedNALUnit; }
private: // redefined virtual functions:
virtual void doGetNextFrame();
private:
static void afterGettingFrame(void* clientData, unsigned frameSize,
unsigned numTruncatedBytes,
struct timeval presentationTime,
unsigned durationInMicroseconds);
void afterGettingFrame1(unsigned frameSize,
unsigned numTruncatedBytes,
struct timeval presentationTime,
unsigned durationInMicroseconds);
private:
unsigned fInputBufferSize;
unsigned fMaxOutputPacketSize;
unsigned char* fInputBuffer;
unsigned fNumValidDataBytes;
unsigned fCurDataOffset;
unsigned fSaveNumTruncatedBytes;
Boolean fLastFragmentCompletedNALUnit;
};
#endif
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