X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fcontrol%2Fcore.c;h=d8232d11a4be258ecde0e853f52903b595d4cb5e;hb=19091cce427c769cc586270d85ea2b448e61d6cc;hp=10a523bd480f9987a8161d7bbb29406b1a218a32;hpb=59a8d434fc6d3bfe190d51ec0a67636866044099;p=vlc diff --git a/src/control/core.c b/src/control/core.c index 10a523bd48..d8232d11a4 100644 --- a/src/control/core.c +++ b/src/control/core.c @@ -1,10 +1,10 @@ /***************************************************************************** - * core.c: Core functions : init, playlist, stream management + * core.c: Core libvlc new API functions : initialization, exceptions handling ***************************************************************************** * Copyright (C) 2005 the VideoLAN team * $Id$ * - * Authors: Olivier Aubert + * Authors: Clément Stenac * * 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 @@ -18,384 +18,185 @@ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -#include +#include "libvlc_internal.h" +#include -#include -#include -#include -#include +#include -#include +#include +#include +#include -#define HAS_SNAPSHOT 1 +static const char nomemstr[] = "Insufficient memory"; -#ifdef HAS_SNAPSHOT -#include -#endif - -#include /* malloc(), free() */ -#include - -#include /* ENOMEM */ -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif -#ifdef HAVE_SYS_TIME_H -# include -#endif -#ifdef HAVE_SYS_TYPES_H -# include -#endif - -#define RAISE( c, m ) exception->code = c; \ - exception->message = strdup(m); - -vlc_t * vlc_current_object( int ); - -mediacontrol_Instance* mediacontrol_new_from_object( int vlc_object_id, - mediacontrol_Exception *exception ) +/************************************************************************* + * Exceptions handling + *************************************************************************/ +void libvlc_exception_init( libvlc_exception_t *p_exception ) { - mediacontrol_Instance* retval; - vlc_object_t *p_vlc; - vlc_object_t *p_object; - - p_object = ( vlc_object_t* )vlc_current_object( vlc_object_id ); - if( ! p_object ) - { - RAISE( mediacontrol_InternalException, "Unable to find vlc object" ); - return NULL; - } - - p_vlc = vlc_object_find( p_object, VLC_OBJECT_ROOT, FIND_PARENT ); - if( ! p_vlc ) - { - RAISE( mediacontrol_InternalException, "Unable to initialize VLC" ); - return NULL; - } - retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) ); - retval->p_vlc = p_vlc; - retval->vlc_object_id = p_vlc->i_object_id; - - /* We can keep references on these, which should not change. Is it true ? */ - retval->p_playlist = vlc_object_find( p_vlc, - VLC_OBJECT_PLAYLIST, FIND_ANYWHERE ); - retval->p_intf = vlc_object_find( p_vlc, VLC_OBJECT_INTF, FIND_ANYWHERE ); + p_exception->b_raised = 0; + p_exception->psz_message = NULL; +} - if( ! retval->p_playlist || ! retval->p_intf ) - { - RAISE( mediacontrol_InternalException, "No available interface" ); - return NULL; - } - return retval; -}; - - -/************************************************************************** - * Playback management - **************************************************************************/ -mediacontrol_Position* -mediacontrol_get_media_position( mediacontrol_Instance *self, - const mediacontrol_PositionOrigin an_origin, - const mediacontrol_PositionKey a_key, - mediacontrol_Exception *exception ) +void libvlc_exception_clear( libvlc_exception_t *p_exception ) { - mediacontrol_Position* retval; - vlc_value_t val; - input_thread_t * p_input = self->p_playlist->p_input; - - exception = mediacontrol_exception_init( exception ); - - retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) ); - retval->origin = an_origin; - retval->key = a_key; + if( p_exception->psz_message != nomemstr ) + free( p_exception->psz_message ); + p_exception->psz_message = NULL; + p_exception->b_raised = 0; +} - if( ! p_input ) - { - /* - RAISE( mediacontrol_InternalException, "No input thread." ); - return( NULL ); - */ - retval->value = 0; - return retval; - } +int libvlc_exception_raised( const libvlc_exception_t *p_exception ) +{ + return (NULL != p_exception) && p_exception->b_raised; +} - if( an_origin == mediacontrol_RelativePosition - || an_origin == mediacontrol_ModuloPosition ) +const char * +libvlc_exception_get_message( const libvlc_exception_t *p_exception ) +{ + if( p_exception->b_raised == 1 && p_exception->psz_message ) { - /* Relative or ModuloPosition make no sense */ - retval->value = 0; - return retval; + return p_exception->psz_message; } - - /* We are asked for an AbsolutePosition. */ - val.i_time = 0; - var_Get( p_input, "time", &val ); - /* FIXME: check val.i_time > 0 */ - - retval->value = mediacontrol_unit_convert( p_input, - mediacontrol_MediaTime, - a_key, - val.i_time / 1000 ); - return retval; + return NULL; } -/* Sets the media position */ -void -mediacontrol_set_media_position( mediacontrol_Instance *self, - const mediacontrol_Position * a_position, - mediacontrol_Exception *exception ) +static void libvlc_exception_not_handled( const char *psz ) { - vlc_value_t val; - input_thread_t * p_input = self->p_playlist->p_input; + fprintf( stderr, "*** LibVLC Exception not handled: %s\nSet a breakpoint in '%s' to debug.\n", + psz, __func__ ); +} - exception=mediacontrol_exception_init( exception ); - if( ! p_input ) - { - RAISE( mediacontrol_InternalException, "No input thread." ); +void libvlc_exception_raise( libvlc_exception_t *p_exception, + const char *psz_format, ... ) +{ + va_list args; + char * psz; + + /* Unformat-ize the message */ + va_start( args, psz_format ); + if( vasprintf( &psz, psz_format, args ) == -1) + psz = (char *)nomemstr; + va_end( args ); + + /* Does caller care about exceptions ? */ + if( p_exception == NULL ) { + /* Print something, so lazy third-parties can easily + * notice that something may have gone unoticedly wrong */ + libvlc_exception_not_handled( psz ); return; } - if( !var_GetBool( p_input, "seekable" ) ) + /* Make sure that there is no unoticed previous exception */ + if( p_exception->b_raised ) { - RAISE( mediacontrol_InvalidPosition, "Stream not seekable" ); - return; + libvlc_exception_not_handled( p_exception->psz_message ); + libvlc_exception_clear( p_exception ); } - - val.i_time = mediacontrol_position2microsecond( p_input, a_position ); - var_Set( p_input, "time", val ); - return; + p_exception->psz_message = psz; + p_exception->b_raised = 1; } -/* Starts playing a stream */ -void -mediacontrol_start( mediacontrol_Instance *self, - const mediacontrol_Position * a_position, - mediacontrol_Exception *exception ) +libvlc_instance_t * libvlc_new( int argc, const char *const *argv, + libvlc_exception_t *p_e ) { - playlist_t * p_playlist = self->p_playlist; + libvlc_instance_t *p_new; - exception = mediacontrol_exception_init( exception ); - if( ! p_playlist ) - { - RAISE( mediacontrol_PlaylistException, "No available playlist" ); - return; - } + libvlc_int_t *p_libvlc_int = libvlc_InternalCreate(); + if( !p_libvlc_int ) RAISENULL( "VLC initialization failed" ); - vlc_mutex_lock( &p_playlist->object_lock ); - if( p_playlist->i_size ) - { - vlc_value_t val; + p_new = (libvlc_instance_t *)malloc( sizeof( libvlc_instance_t ) ); + if( !p_new ) RAISENULL( "Out of memory" ); - vlc_mutex_unlock( &p_playlist->object_lock ); + const char *my_argv[argc + 2]; - /* Set start time */ - val.i_int = mediacontrol_position2microsecond( p_playlist->p_input, a_position ) / 1000000; - var_Set( p_playlist, "start-time", val ); + my_argv[0] = "libvlc"; /* dummy arg0, skipped by getopt() et al */ + for( int i = 0; i < argc; i++ ) + my_argv[i + 1] = argv[i]; + my_argv[argc + 1] = NULL; /* C calling conventions require a NULL */ - playlist_Play( p_playlist ); - } - else - { - RAISE( mediacontrol_PlaylistException, "Empty playlist." ); - vlc_mutex_unlock( &p_playlist->object_lock ); - return; - } + /** \todo Look for interface settings. If we don't have any, add -I dummy */ + /* Because we probably don't want a GUI by default */ - return; -} + if( libvlc_InternalInit( p_libvlc_int, argc + 1, my_argv ) ) + RAISENULL( "VLC initialization failed" ); -void -mediacontrol_pause( mediacontrol_Instance *self, - const mediacontrol_Position * a_position, - mediacontrol_Exception *exception ) -{ - input_thread_t *p_input = self->p_playlist->p_input;; + p_new->p_libvlc_int = p_libvlc_int; + p_new->p_vlm = NULL; + p_new->b_playlist_locked = 0; + p_new->ref_count = 1; + p_new->p_callback_list = NULL; + vlc_mutex_init(&p_new->instance_lock); + vlc_mutex_init(&p_new->event_callback_lock); - /* FIXME: use the a_position parameter */ - exception=mediacontrol_exception_init( exception ); - if( p_input != NULL ) - { - var_SetInteger( p_input, "state", PAUSE_S ); - } - else - { - RAISE( mediacontrol_InternalException, "No input" ); - } - - return; + return p_new; } -void -mediacontrol_resume( mediacontrol_Instance *self, - const mediacontrol_Position * a_position, - mediacontrol_Exception *exception ) +void libvlc_retain( libvlc_instance_t *p_instance ) { - input_thread_t *p_input = self->p_playlist->p_input; + assert( p_instance != NULL ); + assert( p_instance->ref_count < UINT_MAX ); - /* FIXME: use the a_position parameter */ - exception=mediacontrol_exception_init( exception ); - if( p_input != NULL ) - { - var_SetInteger( p_input, "state", PAUSE_S ); - } - else - { - RAISE( mediacontrol_InternalException, "No input" ); - } + vlc_mutex_lock( &p_instance->instance_lock ); + p_instance->ref_count++; + vlc_mutex_unlock( &p_instance->instance_lock ); } -void -mediacontrol_stop( mediacontrol_Instance *self, - const mediacontrol_Position * a_position, - mediacontrol_Exception *exception ) +void libvlc_release( libvlc_instance_t *p_instance ) { - /* FIXME: use the a_position parameter */ - exception=mediacontrol_exception_init( exception ); - if( !self->p_playlist ) - { - RAISE( mediacontrol_PlaylistException, "No playlist" ); - return; - } + vlc_mutex_t *lock = &p_instance->instance_lock; + int refs; - playlist_Stop( self->p_playlist ); -} + assert( p_instance->ref_count > 0 ); -/************************************************************************** - * Playlist management - **************************************************************************/ + vlc_mutex_lock( lock ); + refs = --p_instance->ref_count; + vlc_mutex_unlock( lock ); -void -mediacontrol_playlist_add_item( mediacontrol_Instance *self, - const char * psz_file, - mediacontrol_Exception *exception ) -{ - exception=mediacontrol_exception_init( exception ); - if( !self->p_playlist ) + if( refs == 0 ) { - RAISE( mediacontrol_InternalException, "No playlist" ); - return; + vlc_mutex_destroy( lock ); + vlc_mutex_destroy( &p_instance->event_callback_lock ); + libvlc_InternalCleanup( p_instance->p_libvlc_int ); + libvlc_InternalDestroy( p_instance->p_libvlc_int, false ); + free( p_instance ); } - - playlist_Add( self->p_playlist, psz_file, psz_file , PLAYLIST_INSERT, - PLAYLIST_END ); } -void -mediacontrol_playlist_clear( mediacontrol_Instance *self, - mediacontrol_Exception *exception ) +void libvlc_add_intf( libvlc_instance_t *p_i, const char *name, + libvlc_exception_t *p_e ) { - exception=mediacontrol_exception_init( exception ); - if( !self->p_playlist ) - { - RAISE( mediacontrol_PlaylistException, "No playlist" ); - return; - } - - playlist_Clear( self->p_playlist ); - - return; + if( libvlc_InternalAddIntf( p_i->p_libvlc_int, name, false, true, 0, NULL ) ) + RAISEVOID( "Interface initialization failed" ); } -mediacontrol_PlaylistSeq * -mediacontrol_playlist_get_list( mediacontrol_Instance *self, - mediacontrol_Exception *exception ) +void libvlc_wait( libvlc_instance_t *p_i ) { - mediacontrol_PlaylistSeq *retval; - int i_index; - playlist_t * p_playlist = self->p_playlist; - int i_playlist_size; - - exception=mediacontrol_exception_init( exception ); - if( !p_playlist ) - { - RAISE( mediacontrol_PlaylistException, "No playlist" ); - return NULL; - } - - vlc_mutex_lock( &p_playlist->object_lock ); - i_playlist_size = p_playlist->i_size; - - retval = mediacontrol_PlaylistSeq__alloc( i_playlist_size ); - - for( i_index = 0 ; i_index < i_playlist_size ; i_index++ ) - { - retval->data[i_index] = strdup( p_playlist->pp_items[i_index]->input.psz_uri ); - } - vlc_mutex_unlock( &p_playlist->object_lock ); - - return retval; + libvlc_int_t *p_libvlc = p_i->p_libvlc_int; + vlc_object_lock( p_libvlc ); + while( !vlc_object_wait( p_libvlc ) ); + vlc_object_unlock( p_libvlc ); } -/*************************************************************************** - * Status feedback - ***************************************************************************/ +int libvlc_get_vlc_id( libvlc_instance_t *p_instance ) +{ + return p_instance->p_libvlc_int->i_object_id; +} -mediacontrol_StreamInformation * -mediacontrol_get_stream_information( mediacontrol_Instance *self, - mediacontrol_PositionKey a_key, - mediacontrol_Exception *exception ) +const char * libvlc_get_version() { - mediacontrol_StreamInformation *retval; - input_thread_t *p_input = self->p_playlist->p_input; - vlc_value_t val; + return VLC_Version(); +} - retval = ( mediacontrol_StreamInformation* )malloc( sizeof( mediacontrol_StreamInformation ) ); - if( ! retval ) - { - RAISE( mediacontrol_InternalException, "Out of memory" ); - return NULL; - } +const char * libvlc_get_compiler() +{ + return VLC_Compiler(); +} - if( ! p_input ) - { - /* No p_input defined */ - retval->streamstatus = mediacontrol_UndefinedStatus; - retval->url = strdup( "None" ); - retval->position = 0; - retval->length = 0; - } - else - { - switch( var_GetInteger( p_input, "state" ) ) - { - case PLAYING_S : - retval->streamstatus = mediacontrol_PlayingStatus; - break; - case PAUSE_S : - retval->streamstatus = mediacontrol_PauseStatus; - break; - case INIT_S : - retval->streamstatus = mediacontrol_InitStatus; - break; - case END_S : - retval->streamstatus = mediacontrol_EndStatus; - break; - default : - retval->streamstatus = mediacontrol_UndefinedStatus; - break; - } - - retval->url = strdup( p_input->input.p_item->psz_uri ); - - /* TIME and LENGTH are in microseconds. We want them in ms */ - var_Get( p_input, "time", &val); - retval->position = val.i_time / 1000; - - var_Get( p_input, "length", &val); - retval->length = val.i_time / 1000; - - retval->position = mediacontrol_unit_convert( p_input, - mediacontrol_MediaTime, a_key, - retval->position ); - retval->length = mediacontrol_unit_convert( p_input, - mediacontrol_MediaTime, a_key, - retval->length ); - } - return retval; +const char * libvlc_get_changeset() +{ + return VLC_Changeset(); }