libvlc.h
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上传日期:2020-07-06
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文件大小:11k
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midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * libvlc.h: Internal libvlc generic/misc declaration
- *****************************************************************************
- * Copyright (C) 1999, 2000, 2001, 2002 the VideoLAN team
- * Copyright © 2006-2007 Rémi Denis-Courmont
- * $Id: 16f9aee12a3db37a606e2d48107dcd7c69fc845b $
- *
- * Authors: Vincent Seguin <seguin@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifndef LIBVLC_LIBVLC_H
- # define LIBVLC_LIBVLC_H 1
- typedef struct variable_t variable_t;
- extern const char vlc_usage[];
- /* Actions (hot keys) */
- typedef struct action
- {
- char name[24];
- int value;
- } action_t;
- extern const struct action libvlc_actions[];
- extern const size_t libvlc_actions_count;
- extern int vlc_key_to_action (vlc_object_t *, const char *,
- vlc_value_t, vlc_value_t, void *);
- /*
- * OS-specific initialization
- */
- void system_Init ( libvlc_int_t *, int *, const char *[] );
- void system_Configure ( libvlc_int_t *, int *, const char *[] );
- void system_End ( libvlc_int_t * );
- /*
- * Legacy object stuff that is still used within libvlccore (only)
- */
- #define vlc_object_signal_unlocked( obj )
- vlc_list_t *vlc_list_find( vlc_object_t *, int, int );
- #define VLC_OBJECT_INTF (-4)
- #define VLC_OBJECT_PACKETIZER (-13)
- /*
- * Threads subsystem
- */
- /* Hopefully, no need to export this. There is a new thread API instead. */
- void vlc_thread_cancel (vlc_object_t *);
- int vlc_object_waitpipe (vlc_object_t *obj);
- void vlc_threads_setup (libvlc_int_t *);
- void vlc_trace (const char *fn, const char *file, unsigned line);
- #define vlc_backtrace() vlc_trace(__func__, __FILE__, __LINE__)
- #if defined (LIBVLC_USE_PTHREAD) && !defined (NDEBUG)
- void vlc_assert_locked (vlc_mutex_t *);
- #else
- # define vlc_assert_locked( m ) (void)m
- #endif
- /*
- * CPU capabilities
- */
- extern uint32_t cpu_flags;
- uint32_t CPUCapabilities( void );
- /*
- * Message/logging stuff
- */
- /**
- * Store all data required by messages interfaces.
- */
- typedef struct msg_bank_t
- {
- /** Message queue lock */
- vlc_mutex_t lock;
- vlc_cond_t wait;
- /* Subscribers */
- int i_sub;
- msg_subscription_t **pp_sub;
- /* Logfile for WinCE */
- #ifdef UNDER_CE
- FILE *logfile;
- #endif
- } msg_bank_t;
- void msg_Create (libvlc_int_t *);
- void msg_Destroy (libvlc_int_t *);
- /** Internal message stack context */
- void msg_StackSet ( int, const char*, ... );
- void msg_StackAdd ( const char*, ... );
- const char* msg_StackMsg ( void );
- void msg_StackDestroy (void *);
- /*
- * Unicode stuff
- */
- char *vlc_fix_readdir (const char *);
- /*
- * LibVLC objects stuff
- */
- /**
- * Creates a VLC object.
- *
- * Note that because the object name pointer must remain valid, potentially
- * even after the destruction of the object (through the message queues), this
- * function CANNOT be exported to plugins as is. In this case, the old
- * vlc_object_create() must be used instead.
- *
- * @param p_this an existing VLC object
- * @param i_size byte size of the object structure
- * @param i_type object type, usually VLC_OBJECT_CUSTOM
- * @param psz_type object type name
- * @return the created object, or NULL.
- */
- extern void *
- __vlc_custom_create (vlc_object_t *p_this, size_t i_size, int i_type,
- const char *psz_type);
- #define vlc_custom_create(o, s, t, n)
- __vlc_custom_create(VLC_OBJECT(o), s, t, n)
- /*
- * To be cleaned-up module stuff:
- */
- extern char *psz_vlcpath;
- /* Return a NULL terminated array with the names of the modules that have a
- * certain capability.
- * Free after uses both the string and the table. */
- char **module_GetModulesNamesForCapability (const char * psz_capability,
- char ***psz_longname);
- module_t *module_find_by_shortcut (const char *psz_shortcut);
- /**
- * Private LibVLC data for each object.
- */
- typedef struct vlc_object_internals_t
- {
- int i_object_type; /* Object type, deprecated */
- /* Object variables */
- variable_t * p_vars;
- vlc_mutex_t var_lock;
- vlc_cond_t var_wait;
- int i_vars;
- /* Thread properties, if any */
- vlc_thread_t thread_id;
- bool b_thread;
- /* Objects thread synchronization */
- int pipes[2];
- /* Objects management */
- vlc_spinlock_t ref_spin;
- unsigned i_refcount;
- vlc_destructor_t pf_destructor;
- /* Objects tree structure */
- vlc_object_t *prev, *next;
- vlc_object_t **pp_children;
- int i_children;
- } vlc_object_internals_t;
- #define ZOOM_SECTION N_("Zoom")
- #define ZOOM_QUARTER_KEY_TEXT N_("1:4 Quarter")
- #define ZOOM_HALF_KEY_TEXT N_("1:2 Half")
- #define ZOOM_ORIGINAL_KEY_TEXT N_("1:1 Original")
- #define ZOOM_DOUBLE_KEY_TEXT N_("2:1 Double")
- #define vlc_internals( obj ) (((vlc_object_internals_t*)(VLC_OBJECT(obj)))-1)
- typedef struct sap_handler_t sap_handler_t;
- /**
- * Private LibVLC instance data.
- */
- typedef struct libvlc_priv_t
- {
- libvlc_int_t public_data;
- vlc_cond_t exiting; ///< signaled when VLC wants to exit
- int i_last_input_id ; ///< Last id of input item
- /* Messages */
- msg_bank_t msg_bank; ///< The message bank
- int i_verbose; ///< info messages
- bool b_color; ///< color messages?
- vlc_dictionary_t msg_enabled_objects; ///< Enabled objects
- bool msg_all_objects_enabled; ///< Should we print all objects?
- /* Timer stats */
- vlc_mutex_t timer_lock; ///< Lock to protect timers
- counter_t **pp_timers; ///< Array of all timers
- int i_timers; ///< Number of timers
- bool b_stats; ///< Whether to collect stats
- /* Singleton objects */
- module_t *p_memcpy_module; ///< Fast memcpy plugin used
- playlist_t *p_playlist; //< the playlist singleton
- vlm_t *p_vlm; ///< the VLM singleton (or NULL)
- vlc_object_t *p_dialog_provider; ///< dialog provider
- httpd_t *p_httpd; ///< HTTP daemon (src/network/httpd.c)
- #ifdef ENABLE_SOUT
- sap_handler_t *p_sap; ///< SAP SDP advertiser
- #endif
- vlc_mutex_t structure_lock;
- } libvlc_priv_t;
- static inline libvlc_priv_t *libvlc_priv (libvlc_int_t *libvlc)
- {
- return (libvlc_priv_t *)libvlc;
- }
- void playlist_ServicesDiscoveryKillAll( playlist_t *p_playlist );
- #define libvlc_stats( o ) (libvlc_priv((VLC_OBJECT(o))->p_libvlc)->b_stats)
- /**
- * LibVLC "main module" configuration settings array.
- */
- extern module_config_t libvlc_config[];
- extern const size_t libvlc_config_count;
- /*
- * Variables stuff
- */
- void var_OptionParse (vlc_object_t *, const char *, bool trusted);
- /*
- * Stats stuff
- */
- #define stats_Update(a,b,c) __stats_Update( VLC_OBJECT(a), b, c )
- int __stats_Update (vlc_object_t*, counter_t *, vlc_value_t, vlc_value_t *);
- #define stats_CounterCreate(a,b,c) __stats_CounterCreate( VLC_OBJECT(a), b, c )
- counter_t * __stats_CounterCreate (vlc_object_t*, int, int);
- #define stats_Get(a,b,c) __stats_Get( VLC_OBJECT(a), b, c)
- int __stats_Get (vlc_object_t*, counter_t *, vlc_value_t*);
- void stats_CounterClean (counter_t * );
- #define stats_GetInteger(a,b,c) __stats_GetInteger( VLC_OBJECT(a), b, c )
- static inline int __stats_GetInteger( vlc_object_t *p_obj, counter_t *p_counter,
- int *value )
- {
- int i_ret;
- vlc_value_t val; val.i_int = 0;
- if( !p_counter ) return VLC_EGENERIC;
- i_ret = __stats_Get( p_obj, p_counter, &val );
- *value = val.i_int;
- return i_ret;
- }
- #define stats_GetFloat(a,b,c) __stats_GetFloat( VLC_OBJECT(a), b, c )
- static inline int __stats_GetFloat( vlc_object_t *p_obj, counter_t *p_counter,
- float *value )
- {
- int i_ret;
- vlc_value_t val; val.f_float = 0.0;
- if( !p_counter ) return VLC_EGENERIC;
- i_ret = __stats_Get( p_obj, p_counter, &val );
- *value = val.f_float;
- return i_ret;
- }
- #define stats_UpdateInteger(a,b,c,d) __stats_UpdateInteger( VLC_OBJECT(a),b,c,d )
- static inline int __stats_UpdateInteger( vlc_object_t *p_obj,counter_t *p_co,
- int i, int *pi_new )
- {
- int i_ret;
- vlc_value_t val;
- vlc_value_t new_val; new_val.i_int = 0;
- if( !p_co ) return VLC_EGENERIC;
- val.i_int = i;
- i_ret = __stats_Update( p_obj, p_co, val, &new_val );
- if( pi_new )
- *pi_new = new_val.i_int;
- return i_ret;
- }
- #define stats_UpdateFloat(a,b,c,d) __stats_UpdateFloat( VLC_OBJECT(a),b,c,d )
- static inline int __stats_UpdateFloat( vlc_object_t *p_obj, counter_t *p_co,
- float f, float *pf_new )
- {
- vlc_value_t val;
- int i_ret;
- vlc_value_t new_val;new_val.f_float = 0.0;
- if( !p_co ) return VLC_EGENERIC;
- val.f_float = f;
- i_ret = __stats_Update( p_obj, p_co, val, &new_val );
- if( pf_new )
- *pf_new = new_val.f_float;
- return i_ret;
- }
- VLC_EXPORT( void, stats_ComputeInputStats, (input_thread_t*, input_stats_t*) );
- VLC_EXPORT( void, stats_ReinitInputStats, (input_stats_t *) );
- VLC_EXPORT( void, stats_DumpInputStats, (input_stats_t *) );
- /*
- * Replacement functions
- */
- # ifndef HAVE_DIRENT_H
- typedef void DIR;
- # ifndef FILENAME_MAX
- # define FILENAME_MAX (260)
- # endif
- struct dirent
- {
- long d_ino; /* Always zero. */
- unsigned short d_reclen; /* Always zero. */
- unsigned short d_namlen; /* Length of name in d_name. */
- char d_name[FILENAME_MAX]; /* File name. */
- };
- # define opendir vlc_opendir
- # define readdir vlc_readdir
- # define closedir vlc_closedir
- # define rewinddir vlc_rewindir
- void *vlc_opendir (const char *);
- void *vlc_readdir (void *);
- int vlc_closedir(void *);
- void vlc_rewinddir(void *);
- # endif
- #if defined (WIN32)
- # include <dirent.h>
- void *vlc_wopendir (const wchar_t *);
- /* void *vlc_wclosedir (void *); in vlc's exported symbols */
- struct _wdirent *vlc_wreaddir (void *);
- void vlc_rewinddir (void *);
- # define _wopendir vlc_wopendir
- # define _wreaddir vlc_wreaddir
- # define _wclosedir vlc_wclosedir
- # define rewinddir vlc_rewinddir
- #endif
- #endif