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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 3 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) 1996-2017 Live Networks, Inc. All rights reserved. |
| | | // A sink that generates an AVI file from a composite media session |
| | | // C++ header |
| | | |
| | | #ifndef _AVI_FILE_SINK_HH |
| | | #define _AVI_FILE_SINK_HH |
| | | |
| | | #ifndef _MEDIA_SESSION_HH |
| | | #include "MediaSession.hh" |
| | | #endif |
| | | |
| | | class AVIFileSink: public Medium { |
| | | public: |
| | | static AVIFileSink* createNew(UsageEnvironment& env, |
| | | MediaSession& inputSession, |
| | | char const* outputFileName, |
| | | unsigned bufferSize = 20000, |
| | | unsigned short movieWidth = 240, |
| | | unsigned short movieHeight = 180, |
| | | unsigned movieFPS = 15, |
| | | Boolean packetLossCompensate = False); |
| | | |
| | | typedef void (afterPlayingFunc)(void* clientData); |
| | | Boolean startPlaying(afterPlayingFunc* afterFunc, |
| | | void* afterClientData); |
| | | |
| | | unsigned numActiveSubsessions() const { return fNumSubsessions; } |
| | | |
| | | private: |
| | | AVIFileSink(UsageEnvironment& env, MediaSession& inputSession, |
| | | char const* outputFileName, unsigned bufferSize, |
| | | unsigned short movieWidth, unsigned short movieHeight, |
| | | unsigned movieFPS, Boolean packetLossCompensate); |
| | | // called only by createNew() |
| | | virtual ~AVIFileSink(); |
| | | |
| | | Boolean continuePlaying(); |
| | | static void afterGettingFrame(void* clientData, unsigned frameSize, |
| | | unsigned numTruncatedBytes, |
| | | struct timeval presentationTime, |
| | | unsigned durationInMicroseconds); |
| | | static void onSourceClosure(void* clientData); |
| | | void onSourceClosure1(); |
| | | static void onRTCPBye(void* clientData); |
| | | void addIndexRecord(class AVIIndexRecord* newIndexRecord); |
| | | void completeOutputFile(); |
| | | |
| | | private: |
| | | friend class AVISubsessionIOState; |
| | | MediaSession& fInputSession; |
| | | FILE* fOutFid; |
| | | class AVIIndexRecord *fIndexRecordsHead, *fIndexRecordsTail; |
| | | unsigned fNumIndexRecords; |
| | | unsigned fBufferSize; |
| | | Boolean fPacketLossCompensate; |
| | | Boolean fAreCurrentlyBeingPlayed; |
| | | afterPlayingFunc* fAfterFunc; |
| | | void* fAfterClientData; |
| | | unsigned fNumSubsessions; |
| | | unsigned fNumBytesWritten; |
| | | struct timeval fStartTime; |
| | | Boolean fHaveCompletedOutputFile; |
| | | |
| | | private: |
| | | ///// Definitions specific to the AVI file format: |
| | | |
| | | unsigned addWord(unsigned word); // outputs "word" in little-endian order |
| | | unsigned addHalfWord(unsigned short halfWord); |
| | | unsigned addByte(unsigned char byte) { |
| | | putc(byte, fOutFid); |
| | | return 1; |
| | | } |
| | | unsigned addZeroWords(unsigned numWords); |
| | | unsigned add4ByteString(char const* str); |
| | | void setWord(unsigned filePosn, unsigned size); |
| | | |
| | | // Define member functions for outputting various types of file header: |
| | | #define _header(name) unsigned addFileHeader_##name() |
| | | _header(AVI); |
| | | _header(hdrl); |
| | | _header(avih); |
| | | _header(strl); |
| | | _header(strh); |
| | | _header(strf); |
| | | _header(JUNK); |
| | | // _header(JUNK); |
| | | _header(movi); |
| | | private: |
| | | unsigned short fMovieWidth, fMovieHeight; |
| | | unsigned fMovieFPS; |
| | | unsigned fRIFFSizePosition, fRIFFSizeValue; |
| | | unsigned fAVIHMaxBytesPerSecondPosition; |
| | | unsigned fAVIHFrameCountPosition; |
| | | unsigned fMoviSizePosition, fMoviSizeValue; |
| | | class AVISubsessionIOState* fCurrentIOState; |
| | | unsigned fJunkNumber; |
| | | }; |
| | | |
| | | #endif |