mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
240 lines
6.9 KiB
C
240 lines
6.9 KiB
C
/*****************************************************************************
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* core.c: Core libvlc new API functions : initialization
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*****************************************************************************
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* Copyright (C) 2005 VLC authors and VideoLAN
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*
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* Authors: Clément Stenac <zorglub@videolan.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "libvlc_internal.h"
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#include <vlc_modules.h>
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#include <vlc/vlc.h>
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#include <vlc_interface.h>
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#include <stdarg.h>
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#include <limits.h>
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#include <assert.h>
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#include "../src/revision.c"
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libvlc_instance_t * libvlc_new( int argc, const char *const *argv )
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{
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libvlc_threads_init ();
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libvlc_instance_t *p_new = malloc (sizeof (*p_new));
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if (unlikely(p_new == NULL))
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return NULL;
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const char *my_argv[argc + 2];
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my_argv[0] = "libvlc"; /* dummy arg0, skipped by getopt() et al */
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for( int i = 0; i < argc; i++ )
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my_argv[i + 1] = argv[i];
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my_argv[argc + 1] = NULL; /* C calling conventions require a NULL */
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libvlc_int_t *p_libvlc_int = libvlc_InternalCreate();
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if (unlikely (p_libvlc_int == NULL))
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goto error;
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if (libvlc_InternalInit( p_libvlc_int, argc + 1, my_argv ))
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{
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libvlc_InternalDestroy( p_libvlc_int );
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goto error;
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}
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p_new->p_libvlc_int = p_libvlc_int;
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p_new->ref_count = 1;
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p_new->p_callback_list = NULL;
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vlc_mutex_init(&p_new->instance_lock);
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return p_new;
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error:
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free (p_new);
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libvlc_threads_deinit ();
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return NULL;
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}
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void libvlc_retain( libvlc_instance_t *p_instance )
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{
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assert( p_instance != NULL );
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assert( p_instance->ref_count < UINT_MAX );
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vlc_mutex_lock( &p_instance->instance_lock );
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p_instance->ref_count++;
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vlc_mutex_unlock( &p_instance->instance_lock );
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}
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void libvlc_release( libvlc_instance_t *p_instance )
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{
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vlc_mutex_t *lock = &p_instance->instance_lock;
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int refs;
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vlc_mutex_lock( lock );
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assert( p_instance->ref_count > 0 );
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refs = --p_instance->ref_count;
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vlc_mutex_unlock( lock );
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if( refs == 0 )
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{
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vlc_mutex_destroy( lock );
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libvlc_Quit( p_instance->p_libvlc_int );
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libvlc_InternalCleanup( p_instance->p_libvlc_int );
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libvlc_InternalDestroy( p_instance->p_libvlc_int );
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free( p_instance );
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libvlc_threads_deinit ();
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}
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}
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void libvlc_set_exit_handler( libvlc_instance_t *p_i, void (*cb) (void *),
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void *data )
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{
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libvlc_int_t *p_libvlc = p_i->p_libvlc_int;
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libvlc_SetExitHandler( p_libvlc, cb, data );
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}
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void libvlc_set_user_agent (libvlc_instance_t *p_i,
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const char *name, const char *http)
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{
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libvlc_int_t *p_libvlc = p_i->p_libvlc_int;
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char *str;
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var_SetString (p_libvlc, "user-agent", name);
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if ((http != NULL)
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&& (asprintf (&str, "%s LibVLC/"PACKAGE_VERSION, http) != -1))
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{
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var_SetString (p_libvlc, "http-user-agent", str);
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free (str);
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}
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}
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void libvlc_set_app_id(libvlc_instance_t *p_i, const char *id,
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const char *version, const char *icon)
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{
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libvlc_int_t *p_libvlc = p_i->p_libvlc_int;
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var_SetString(p_libvlc, "app-id", id ? id : "");
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var_SetString(p_libvlc, "app-version", version ? version : "");
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var_SetString(p_libvlc, "app-icon-name", icon ? icon : "");
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}
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const char * libvlc_get_version(void)
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{
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return VERSION_MESSAGE;
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}
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const char * libvlc_get_compiler(void)
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{
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return VLC_Compiler();
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}
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const char * libvlc_get_changeset(void)
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{
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extern const char psz_vlc_changeset[];
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return psz_vlc_changeset;
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}
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void libvlc_free( void *ptr )
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{
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free( ptr );
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}
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static libvlc_module_description_t *module_description_list_get(
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libvlc_instance_t *p_instance, const char *capability )
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{
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libvlc_module_description_t *p_list = NULL,
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*p_actual = NULL,
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*p_previous = NULL;
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size_t count;
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module_t **module_list = module_list_get( &count );
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for (size_t i = 0; i < count; i++)
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{
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module_t *p_module = module_list[i];
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if ( !module_provides( p_module, capability ) )
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continue;
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p_actual = ( libvlc_module_description_t * ) malloc( sizeof( libvlc_module_description_t ) );
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if ( p_actual == NULL )
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{
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libvlc_printerr( "Not enough memory" );
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libvlc_module_description_list_release( p_list );
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module_list_free( module_list );
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return NULL;
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}
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if ( p_list == NULL )
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p_list = p_actual;
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const char* name = module_get_object( p_module );
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const char* shortname = module_get_name( p_module, false );
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const char* longname = module_get_name( p_module, true );
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const char* help = module_get_help( p_module );
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p_actual->psz_name = name ? strdup( name ) : NULL;
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p_actual->psz_shortname = shortname ? strdup( shortname ) : NULL;
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p_actual->psz_longname = longname ? strdup( longname ) : NULL;
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p_actual->psz_help = help ? strdup( help ) : NULL;
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p_actual->p_next = NULL;
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if ( p_previous )
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p_previous->p_next = p_actual;
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p_previous = p_actual;
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}
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module_list_free( module_list );
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VLC_UNUSED( p_instance );
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return p_list;
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}
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void libvlc_module_description_list_release( libvlc_module_description_t *p_list )
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{
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libvlc_module_description_t *p_actual, *p_before;
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p_actual = p_list;
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while ( p_actual )
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{
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free( p_actual->psz_name );
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free( p_actual->psz_shortname );
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free( p_actual->psz_longname );
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free( p_actual->psz_help );
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p_before = p_actual;
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p_actual = p_before->p_next;
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free( p_before );
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}
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}
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libvlc_module_description_t *libvlc_audio_filter_list_get( libvlc_instance_t *p_instance )
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{
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return module_description_list_get( p_instance, "audio filter" );
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}
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libvlc_module_description_t *libvlc_video_filter_list_get( libvlc_instance_t *p_instance )
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{
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return module_description_list_get( p_instance, "video filter" );
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}
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int64_t libvlc_clock(void)
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{
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return US_FROM_VLC_TICK(vlc_tick_now());
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}
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const char vlc_module_name[] = "libvlc";
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