live: liveMedia/include/H263plusVideoRTPSink.hh Source File

00001 /**********
00002 This library is free software; you can redistribute it and/or modify it under
00003 the terms of the GNU Lesser General Public License as published by the
00004 Free Software Foundation; either version 2.1 of the License, or (at your
00005 option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
00006 
00007 This library is distributed in the hope that it will be useful, but WITHOUT
00008 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00009 FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
00010 more details.
00011 
00012 You should have received a copy of the GNU Lesser General Public License
00013 along with this library; if not, write to the Free Software Foundation, Inc.,
00014 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
00015 **********/
00016 // "liveMedia"
00017 // Copyright (c) 1996-2012 Live Networks, Inc.  All rights reserved.
00018 // RTP sink for H.263+ video (RFC 4629)
00019 // C++ header
00020 
00021 #ifndef _H263_PLUS_VIDEO_RTP_SINK_HH
00022 #define _H263_PLUS_VIDEO_RTP_SINK_HH
00023 
00024 #ifndef _VIDEO_RTP_SINK_HH
00025 #include "VideoRTPSink.hh"
00026 #endif
00027 
00028 class H263plusVideoRTPSink: public VideoRTPSink {
00029 public:
00030   static H263plusVideoRTPSink* createNew(UsageEnvironment& env, Groupsock* RTPgs,
00031                                          unsigned char rtpPayloadFormat,
00032                                          u_int32_t rtpTimestampFrequency = 90000);
00033 
00034 protected:
00035   H263plusVideoRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
00036                        unsigned char rtpPayloadFormat,
00037                        u_int32_t rtpTimestampFrequency);
00038         // called only by createNew()
00039 
00040   virtual ~H263plusVideoRTPSink();
00041 
00042 private: // redefined virtual functions:
00043   virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
00044                                       unsigned char* frameStart,
00045                                       unsigned numBytesInFrame,
00046                                       struct timeval framePresentationTime,
00047                                       unsigned numRemainingBytes);
00048   virtual
00049   Boolean frameCanAppearAfterPacketStart(unsigned char const* frameStart,
00050                                          unsigned numBytesInFrame) const;
00051   virtual unsigned specialHeaderSize() const;
00052 };
00053 
00054 #endif