mirror of
https://github.com/tuxbox-neutrino/neutrino.git
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117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
/*
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* $Header: /cvs/tuxbox/apps/tuxbox/neutrino/daemons/sectionsd/dmx.h,v 1.17 2009/05/23 16:50:12 seife Exp $
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*
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* DMX class (sectionsd) - d-box2 linux project
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*
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* (C) 2003 by thegoodguy <thegoodguy@berlios.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef __sectionsd__dmx_h__
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#define __sectionsd__dmx_h__
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#include <pthread.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <vector>
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#include <config.h>
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#if HAVE_COOL_HARDWARE
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#include <dmx_cs.h>
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#endif
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#if HAVE_TRIPLEDRAGON || USE_STB_HAL
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#include <dmx_td.h>
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#endif
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typedef uint64_t sections_id_t;
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typedef unsigned char version_number_t;
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class DMX
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{
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private:
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int fd;
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cDemux * dmx;
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int dmx_num;
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pthread_mutex_t pauselock;
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unsigned short pID;
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unsigned short dmxBufferSizeInKB;
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sections_id_t first_skipped;
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int current_service;
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unsigned char eit_version;
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bool cache; /* should read sections be cached? true for all but dmxCN */
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inline bool isOpen(void) {
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return (fd != -1);
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}
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int immediate_start(void); /* mutex must be locked before and unlocked after this method */
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int immediate_stop(void); /* mutex must be locked before and unlocked after this method */
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bool check_complete(const unsigned char table_id, const unsigned short extension_id, const unsigned short onid, const unsigned short tsid, const unsigned char);
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sections_id_t create_sections_id(const unsigned char table_id, const unsigned short extension_id, const unsigned char section_number, const unsigned short onid, const unsigned short tsid);
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ssize_t readNbytes(int fd, char * buf, const size_t n, unsigned timeoutInMSeconds);
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public:
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struct s_filters
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{
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unsigned char filter;
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unsigned char mask;
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};
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std::vector<s_filters> filters;
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int filter_index;
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time_t lastChanged;
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int real_pauseCounter;
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pthread_cond_t change_cond;
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pthread_mutex_t start_stop_mutex;
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DMX(const unsigned short p, const unsigned short bufferSizeInKB, const bool cache = true, int dmx_source = 0);
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~DMX();
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int start(void);
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ssize_t read(char * const buf, const size_t buflength, const unsigned timeoutMInSeconds);
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void closefd(void);
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void addfilter(const unsigned char filter, const unsigned char mask);
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int stop(void);
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void close(void);
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int real_pause(void);
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int real_unpause(void);
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int request_pause(void);
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int request_unpause(void);
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int change(const int new_filter_index, const int new_current_service = -1); // locks while changing
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void lock(void);
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void unlock(void);
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int getSection(char *buf, const unsigned timeoutInMSeconds, int &timeouts);
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// section with size < 3 + 5 are skipped !
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int setPid(const unsigned short new_pid);
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int setCurrentService(int new_current_service);
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int dropCachedSectionIDs();
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unsigned char get_eit_version(void);
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// was useful for debugging...
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unsigned int get_current_service(void);
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};
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#endif /* __sectionsd__dmx_h__ */
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