/usr/include/liveMedia/Media.hh is in liblivemedia-dev 2018.02.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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) 1996-2018 Live Networks, Inc. All rights reserved.
// Medium
// C++ header
#ifndef _MEDIA_HH
#define _MEDIA_HH
#ifndef _LIVEMEDIA_VERSION_HH
#include "liveMedia_version.hh"
#endif
#ifndef _HASH_TABLE_HH
#include "HashTable.hh"
#endif
#ifndef _USAGE_ENVIRONMENT_HH
#include "UsageEnvironment.hh"
#endif
// Lots of files end up needing the following, so just #include them here:
#ifndef _NET_COMMON_H
#include "NetCommon.h"
#endif
#include <stdio.h>
// The following makes the Borland compiler happy:
#ifdef __BORLANDC__
#define _strnicmp strnicmp
#define fabsf(x) fabs(x)
#endif
#define mediumNameMaxLen 30
class Medium {
public:
static Boolean lookupByName(UsageEnvironment& env,
char const* mediumName,
Medium*& resultMedium);
static void close(UsageEnvironment& env, char const* mediumName);
static void close(Medium* medium); // alternative close() method using ptrs
// (has no effect if medium == NULL)
UsageEnvironment& envir() const {return fEnviron;}
char const* name() const {return fMediumName;}
// Test for specific types of media:
virtual Boolean isSource() const;
virtual Boolean isSink() const;
virtual Boolean isRTCPInstance() const;
virtual Boolean isRTSPClient() const;
virtual Boolean isRTSPServer() const;
virtual Boolean isMediaSession() const;
virtual Boolean isServerMediaSession() const;
protected:
friend class MediaLookupTable;
Medium(UsageEnvironment& env); // abstract base class
virtual ~Medium(); // instances are deleted using close() only
TaskToken& nextTask() {
return fNextTask;
}
private:
UsageEnvironment& fEnviron;
char fMediumName[mediumNameMaxLen];
TaskToken fNextTask;
};
// A data structure for looking up a Medium by its string name.
// (It is used only to implement "Medium", but we make it visible here, in case developers want to use it to iterate over
// the whole set of "Medium" objects that we've created.)
class MediaLookupTable {
public:
static MediaLookupTable* ourMedia(UsageEnvironment& env);
HashTable const& getTable() { return *fTable; }
protected:
MediaLookupTable(UsageEnvironment& env);
virtual ~MediaLookupTable();
private:
friend class Medium;
Medium* lookup(char const* name) const;
// Returns NULL if none already exists
void addNew(Medium* medium, char* mediumName);
void remove(char const* name);
void generateNewName(char* mediumName, unsigned maxLen);
private:
UsageEnvironment& fEnv;
HashTable* fTable;
unsigned fNameGenerator;
};
// The structure pointed to by the "liveMediaPriv" UsageEnvironment field:
class _Tables {
public:
static _Tables* getOurTables(UsageEnvironment& env, Boolean createIfNotPresent = True);
// returns a pointer to a "_Tables" structure (creating it if necessary)
void reclaimIfPossible();
// used to delete ourselves when we're no longer used
MediaLookupTable* mediaTable;
void* socketTable;
protected:
_Tables(UsageEnvironment& env);
virtual ~_Tables();
private:
UsageEnvironment& fEnv;
};
#endif
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