/usr/include/liveMedia/MatroskaFileServerDemux.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.
// A server demultiplexor for a Matroska file
// C++ header
#ifndef _MATROSKA_FILE_SERVER_DEMUX_HH
#define _MATROSKA_FILE_SERVER_DEMUX_HH
#ifndef _SERVER_MEDIA_SESSION_HH
#include "ServerMediaSession.hh"
#endif
#ifndef _MATROSKA_FILE_HH
#include "MatroskaFile.hh"
#endif
class MatroskaFileServerDemux: public Medium {
public:
typedef void (onCreationFunc)(MatroskaFileServerDemux* newDemux, void* clientData);
static void createNew(UsageEnvironment& env, char const* fileName, onCreationFunc* onCreation, void* onCreationClientData);
// Note: Unlike most "createNew()" functions, this one doesn't return a new object immediately. Instead, because this class
// requires file reading (to parse the Matroska 'Track' headers) before a new object can be initialized, the creation of a new
// object is signalled by calling - from the event loop - an 'onCreationFunc' that is passed as a parameter to "createNew()".
ServerMediaSubsession* newServerMediaSubsession();
// Returns a new "ServerMediaSubsession" object that represents the next preferred media track
// (video, audio, subtitle - in that order) from the file. (Preferred media tracks are based on the file's language preference.)
// This function returns NULL when no more media tracks exist.
ServerMediaSubsession* newServerMediaSubsession(unsigned trackNumber);
// As above, but creates a new "ServerMediaSubsession" object for a specific track number within the Matroska file.
// (You should not call this function more than once with the same track number.)
// The following public: member functions are called only by the "ServerMediaSubsession" objects:
MatroskaFile* ourMatroskaFile() { return fOurMatroskaFile; }
char const* fileName() const { return fFileName; }
float fileDuration() const { return fOurMatroskaFile->fileDuration(); }
MatroskaTrack* lookup(unsigned trackNumber) { return fOurMatroskaFile->lookup(trackNumber); } // shortcut
FramedSource* newDemuxedTrack(unsigned clientSessionId, unsigned trackNumber);
// Used by the "ServerMediaSubsession" objects to implement their "createNewStreamSource()" virtual function.
private:
MatroskaFileServerDemux(UsageEnvironment& env, char const* fileName, onCreationFunc* onCreation, void* onCreationClientData);
// called only by createNew()
virtual ~MatroskaFileServerDemux();
static void onMatroskaFileCreation(MatroskaFile* newFile, void* clientData);
void onMatroskaFileCreation(MatroskaFile* newFile);
private:
char const* fFileName;
onCreationFunc* fOnCreation;
void* fOnCreationClientData;
MatroskaFile* fOurMatroskaFile;
// Used to implement "newServerMediaSubsession()":
u_int8_t fNextTrackTypeToCheck;
// Used to set up demuxing, to implement "newDemuxedTrack()":
unsigned fLastClientSessionId;
MatroskaDemux* fLastCreatedDemux;
};
#endif
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