/usr/include/liveMedia/MPEGVideoStreamFramer.hh is in liblivemedia-dev 2011.12.23-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | /**********
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.
// A filter that breaks up an MPEG video elementary stream into
// headers and frames
// C++ header
#ifndef _MPEG_VIDEO_STREAM_FRAMER_HH
#define _MPEG_VIDEO_STREAM_FRAMER_HH
#ifndef _FRAMED_FILTER_HH
#include "FramedFilter.hh"
#endif
class TimeCode {
public:
TimeCode();
virtual ~TimeCode();
int operator==(TimeCode const& arg2);
unsigned days, hours, minutes, seconds, pictures;
};
class MPEGVideoStreamFramer: public FramedFilter {
public:
Boolean& pictureEndMarker() { return fPictureEndMarker; }
// a hack for implementing the RTP 'M' bit
void flushInput(); // called if there is a discontinuity (seeking) in the input
protected:
MPEGVideoStreamFramer(UsageEnvironment& env, FramedSource* inputSource);
// we're an abstract base class
virtual ~MPEGVideoStreamFramer();
void computePresentationTime(unsigned numAdditionalPictures);
// sets "fPresentationTime"
void setTimeCode(unsigned hours, unsigned minutes, unsigned seconds,
unsigned pictures, unsigned picturesSinceLastGOP);
private: // redefined virtual functions
virtual void doGetNextFrame();
private:
void reset();
static void continueReadProcessing(void* clientData,
unsigned char* ptr, unsigned size,
struct timeval presentationTime);
void continueReadProcessing();
protected:
double fFrameRate; // Note: For MPEG-4, this is really a 'tick rate'
unsigned fPictureCount; // hack used to implement doGetNextFrame()
Boolean fPictureEndMarker;
struct timeval fPresentationTimeBase;
// parsing state
class MPEGVideoStreamParser* fParser;
friend class MPEGVideoStreamParser; // hack
private:
TimeCode fCurGOPTimeCode, fPrevGOPTimeCode;
unsigned fPicturesAdjustment;
double fPictureTimeBase;
unsigned fTcSecsBase;
Boolean fHaveSeenFirstTimeCode;
};
#endif
|