/**********
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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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// A sink that generates an AVI file from a composite media session
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// C++ header
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#ifndef _AVI_FILE_SINK_HH
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#define _AVI_FILE_SINK_HH
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#ifndef _MEDIA_SESSION_HH
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#include "MediaSession.hh"
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#endif
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class AVIFileSink: public Medium {
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public:
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static AVIFileSink* createNew(UsageEnvironment& env,
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MediaSession& inputSession,
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char const* outputFileName,
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unsigned bufferSize = 20000,
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unsigned short movieWidth = 240,
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unsigned short movieHeight = 180,
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unsigned movieFPS = 15,
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Boolean packetLossCompensate = False);
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typedef void (afterPlayingFunc)(void* clientData);
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Boolean startPlaying(afterPlayingFunc* afterFunc,
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void* afterClientData);
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unsigned numActiveSubsessions() const { return fNumSubsessions; }
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private:
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AVIFileSink(UsageEnvironment& env, MediaSession& inputSession,
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char const* outputFileName, unsigned bufferSize,
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unsigned short movieWidth, unsigned short movieHeight,
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unsigned movieFPS, Boolean packetLossCompensate);
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// called only by createNew()
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virtual ~AVIFileSink();
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Boolean continuePlaying();
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static void afterGettingFrame(void* clientData, unsigned frameSize,
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unsigned numTruncatedBytes,
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struct timeval presentationTime,
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unsigned durationInMicroseconds);
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static void onSourceClosure(void* clientData);
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void onSourceClosure1();
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static void onRTCPBye(void* clientData);
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void addIndexRecord(class AVIIndexRecord* newIndexRecord);
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void completeOutputFile();
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private:
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friend class AVISubsessionIOState;
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MediaSession& fInputSession;
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FILE* fOutFid;
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class AVIIndexRecord *fIndexRecordsHead, *fIndexRecordsTail;
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unsigned fNumIndexRecords;
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unsigned fBufferSize;
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Boolean fPacketLossCompensate;
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Boolean fAreCurrentlyBeingPlayed;
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afterPlayingFunc* fAfterFunc;
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void* fAfterClientData;
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unsigned fNumSubsessions;
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unsigned fNumBytesWritten;
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struct timeval fStartTime;
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Boolean fHaveCompletedOutputFile;
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private:
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///// Definitions specific to the AVI file format:
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unsigned addWord(unsigned word); // outputs "word" in little-endian order
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unsigned addHalfWord(unsigned short halfWord);
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unsigned addByte(unsigned char byte) {
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putc(byte, fOutFid);
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return 1;
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}
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unsigned addZeroWords(unsigned numWords);
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unsigned add4ByteString(char const* str);
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void setWord(unsigned filePosn, unsigned size);
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// Define member functions for outputting various types of file header:
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#define _header(name) unsigned addFileHeader_##name()
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_header(AVI);
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_header(hdrl);
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_header(avih);
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_header(strl);
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_header(strh);
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_header(strf);
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_header(JUNK);
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// _header(JUNK);
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_header(movi);
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private:
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unsigned short fMovieWidth, fMovieHeight;
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unsigned fMovieFPS;
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unsigned fRIFFSizePosition, fRIFFSizeValue;
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unsigned fAVIHMaxBytesPerSecondPosition;
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unsigned fAVIHFrameCountPosition;
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unsigned fMoviSizePosition, fMoviSizeValue;
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class AVISubsessionIOState* fCurrentIOState;
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unsigned fJunkNumber;
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};
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#endif
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