/*****************************************************************************
- * 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 <olivier.aubert@liris.univ-lyon1.fr>
+ * Authors: Clément Stenac <zorglub@videolan.org>
*
* 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
*
* 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 <vlc/control.h>
+#include "libvlc_internal.h"
+#include <vlc/libvlc.h>
-#include <vlc/intf.h>
-#include <vlc/vout.h>
-#include <vlc/aout.h>
-#include <vlc_demux.h>
+#include <vlc_interface.h>
+#include <vlc_vlm.h>
-#include <vlc_osd.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <assert.h>
-#define HAS_SNAPSHOT 1
+static const char nomemstr[] = "Insufficient memory";
-#ifdef HAS_SNAPSHOT
-#include <snapshot.h>
-#endif
-
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h>
-
-#include <errno.h> /* ENOMEM */
-#include <stdio.h>
-#include <ctype.h>
+/*************************************************************************
+ * Exceptions handling
+ *************************************************************************/
+void libvlc_exception_init( libvlc_exception_t *p_exception )
+{
+ p_exception->b_raised = 0;
+}
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-#endif
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
+void libvlc_exception_clear( libvlc_exception_t *p_exception )
+{
+ if( NULL == p_exception )
+ return;
+ p_exception->b_raised = 0;
+ libvlc_clearerr ();
+}
-#define RAISE( c, m ) exception->code = c; \
- exception->message = strdup(m);
+int libvlc_exception_raised( const libvlc_exception_t *p_exception )
+{
+ return (NULL != p_exception) && p_exception->b_raised;
+}
-vlc_t * vlc_current_object( int );
+static void libvlc_exception_not_handled( const char *psz )
+{
+ fprintf( stderr, "*** LibVLC Exception not handled: %s\nSet a breakpoint in '%s' to debug.\n",
+ psz, __func__ );
+ abort();
+}
-mediacontrol_Instance* mediacontrol_new_from_object( int vlc_object_id,
- mediacontrol_Exception *exception )
+void libvlc_exception_raise( libvlc_exception_t *p_exception,
+ const char *psz_format, ... )
{
- mediacontrol_Instance* retval;
- vlc_object_t *p_vlc;
- vlc_object_t *p_object;
+ va_list args;
- p_object = ( vlc_object_t* )vlc_current_object( vlc_object_id );
- if( ! p_object )
+ /* Make sure that there is no unnoticed previous exception */
+ if( p_exception && p_exception->b_raised )
{
- RAISE( mediacontrol_InternalException, "Unable to find vlc object" );
- return NULL;
+ libvlc_exception_not_handled( libvlc_errmsg() );
+ libvlc_exception_clear( p_exception );
}
- p_vlc = vlc_object_find( p_object, VLC_OBJECT_ROOT, FIND_PARENT );
- if( ! p_vlc )
- {
- RAISE( mediacontrol_InternalException, "Unable to initialize VLC" );
- return NULL;
+ /* Unformat-ize the message */
+ va_start( args, psz_format );
+ libvlc_vprinterr( psz_format, args );
+ va_end( args );
+
+ /* Does caller care about exceptions ? */
+ if( p_exception == NULL ) {
+ /* Print something, so that lazy third-parties can easily
+ * notice that something may have gone unnoticedly wrong */
+ libvlc_exception_not_handled( libvlc_errmsg() );
+ return;
}
- 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 = 1;
+}
- 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 )
+libvlc_instance_t * libvlc_new( int argc, const char *const *argv,
+ libvlc_exception_t *p_e )
{
- mediacontrol_Position* retval;
- vlc_value_t val;
- input_thread_t * p_input = self->p_playlist->p_input;
-
- exception = mediacontrol_exception_init( exception );
+ libvlc_instance_t *p_new;
+ int i_ret;
- retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
- retval->origin = an_origin;
- retval->key = a_key;
+ libvlc_init_threads ();
- if( ! p_input )
+ libvlc_int_t *p_libvlc_int = libvlc_InternalCreate();
+ if( !p_libvlc_int )
{
- RAISE( mediacontrol_InternalException, "No input thread." );
- return NULL;
+ libvlc_deinit_threads ();
+ RAISENULL( "VLC initialization failed" );
}
- if( an_origin != mediacontrol_AbsolutePosition )
+ p_new = malloc( sizeof( libvlc_instance_t ) );
+ if( !p_new )
{
- /* Relative or ModuloPosition make no sense */
- RAISE( mediacontrol_PositionOriginNotSupported, "Only absolute position is valid." );
- return NULL;
+ libvlc_deinit_threads ();
+ RAISENULL( "Out of memory" );
}
- /* We are asked for an AbsolutePosition. */
- val.i_time = 0;
- var_Get( p_input, "time", &val );
- /* FIXME: check val.i_time > 0 */
+ const char *my_argv[argc + 2];
- retval->value = mediacontrol_unit_convert( p_input,
- mediacontrol_MediaTime,
- a_key,
- val.i_time / 1000 );
- return retval;
-}
+ 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 */
-/* Sets the media position */
-void
-mediacontrol_set_media_position( mediacontrol_Instance *self,
- const mediacontrol_Position * a_position,
- mediacontrol_Exception *exception )
-{
- vlc_value_t val;
- input_thread_t * p_input = self->p_playlist->p_input;
+ /** \todo Look for interface settings. If we don't have any, add -I dummy */
+ /* Because we probably don't want a GUI by default */
- exception=mediacontrol_exception_init( exception );
- if( ! p_input )
+ i_ret = libvlc_InternalInit( p_libvlc_int, argc + 1, my_argv );
+ if( i_ret )
{
- RAISE( mediacontrol_InternalException, "No input thread." );
- return;
- }
+ libvlc_InternalDestroy( p_libvlc_int );
+ free( p_new );
+ libvlc_deinit_threads ();
- if( !var_GetBool( p_input, "seekable" ) )
- {
- RAISE( mediacontrol_InvalidPosition, "Stream not seekable" );
- return;
+ if( i_ret == VLC_EEXITSUCCESS )
+ return NULL;
+ else
+ RAISENULL( "VLC initialization failed" );
}
- val.i_time = mediacontrol_position2microsecond( p_input, a_position );
- var_Set( p_input, "time", val );
- return;
+ p_new->p_libvlc_int = p_libvlc_int;
+ p_new->libvlc_vlm.p_vlm = NULL;
+ p_new->libvlc_vlm.p_event_manager = NULL;
+ p_new->libvlc_vlm.pf_release = NULL;
+ p_new->b_playlist_locked = 0;
+ p_new->ref_count = 1;
+ p_new->verbosity = 1;
+ p_new->p_callback_list = NULL;
+ vlc_mutex_init(&p_new->instance_lock);
+ vlc_mutex_init(&p_new->event_callback_lock);
+
+ return p_new;
}
-/* Starts playing a stream */
-void
-mediacontrol_start( mediacontrol_Instance *self,
- const mediacontrol_Position * a_position,
- mediacontrol_Exception *exception )
+void libvlc_retain( libvlc_instance_t *p_instance )
{
- playlist_t * p_playlist = self->p_playlist;
+ assert( p_instance != NULL );
+ assert( p_instance->ref_count < UINT_MAX );
- exception = mediacontrol_exception_init( exception );
- if( ! p_playlist )
- {
- RAISE( mediacontrol_PlaylistException, "No available playlist" );
- return;
- }
-
- vlc_mutex_lock( &p_playlist->object_lock );
- if( p_playlist->i_size )
- {
- int i_from;
-
- vlc_mutex_unlock( &p_playlist->object_lock );
+ vlc_mutex_lock( &p_instance->instance_lock );
+ p_instance->ref_count++;
+ vlc_mutex_unlock( &p_instance->instance_lock );
+}
- i_from = mediacontrol_position2microsecond( p_playlist->p_input, a_position ) / 1000000;
+void libvlc_release( libvlc_instance_t *p_instance )
+{
+ vlc_mutex_t *lock = &p_instance->instance_lock;
+ int refs;
- if( p_playlist->status.p_item )
- {
- char psz_from[20];
- snprintf( psz_from, 20, "start-time=%i", i_from);
- playlist_ItemAddOption( p_playlist->status.p_item, psz_from);
- }
+ vlc_mutex_lock( lock );
+ assert( p_instance->ref_count > 0 );
+ refs = --p_instance->ref_count;
+ vlc_mutex_unlock( lock );
- playlist_Play( p_playlist );
- }
- else
+ if( refs == 0 )
{
- RAISE( mediacontrol_PlaylistException, "Empty playlist." );
- vlc_mutex_unlock( &p_playlist->object_lock );
- return;
+ vlc_mutex_destroy( lock );
+ vlc_mutex_destroy( &p_instance->event_callback_lock );
+ if( p_instance->libvlc_vlm.pf_release )
+ p_instance->libvlc_vlm.pf_release( p_instance );
+ libvlc_InternalCleanup( p_instance->p_libvlc_int );
+ libvlc_InternalDestroy( p_instance->p_libvlc_int );
+ free( p_instance );
+ libvlc_deinit_threads ();
}
-
- return;
}
-void
-mediacontrol_pause( mediacontrol_Instance *self,
- const mediacontrol_Position * a_position,
- mediacontrol_Exception *exception )
+int libvlc_add_intf( libvlc_instance_t *p_i, const char *name,
+ libvlc_exception_t *p_e )
{
- input_thread_t *p_input = self->p_playlist->p_input;
-
- /* FIXME: use the a_position parameter */
- exception=mediacontrol_exception_init( exception );
- if( p_input != NULL )
- {
- var_SetInteger( p_input, "state", PAUSE_S );
- }
- else
+ if( libvlc_InternalAddIntf( p_i->p_libvlc_int, name ) )
{
- RAISE( mediacontrol_InternalException, "No input" );
+ libvlc_exception_raise( p_e, "Interface initialization failed" );
+ return -1;
}
-
- return;
+ return 0;
}
-void
-mediacontrol_resume( mediacontrol_Instance *self,
- const mediacontrol_Position * a_position,
- mediacontrol_Exception *exception )
+void libvlc_wait( libvlc_instance_t *p_i )
{
- input_thread_t *p_input = self->p_playlist->p_input;
-
- /* 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" );
- }
+ libvlc_int_t *p_libvlc = p_i->p_libvlc_int;
+ libvlc_InternalWait( p_libvlc );
}
-void
-mediacontrol_stop( mediacontrol_Instance *self,
- const mediacontrol_Position * a_position,
- mediacontrol_Exception *exception )
+const char * libvlc_get_version(void)
{
- /* FIXME: use the a_position parameter */
- exception=mediacontrol_exception_init( exception );
- if( !self->p_playlist )
- {
- RAISE( mediacontrol_PlaylistException, "No playlist" );
- return;
- }
-
- playlist_Stop( self->p_playlist );
+ return VLC_Version();
}
-/**************************************************************************
- * Playlist management
- **************************************************************************/
-
-void
-mediacontrol_playlist_add_item( mediacontrol_Instance *self,
- const char * psz_file,
- mediacontrol_Exception *exception )
+const char * libvlc_get_compiler(void)
{
- exception=mediacontrol_exception_init( exception );
- if( !self->p_playlist )
- {
- RAISE( mediacontrol_InternalException, "No playlist" );
- return;
- }
-
- playlist_Add( self->p_playlist, psz_file, psz_file , PLAYLIST_INSERT,
- PLAYLIST_END );
+ return VLC_Compiler();
}
-void
-mediacontrol_playlist_clear( mediacontrol_Instance *self,
- mediacontrol_Exception *exception )
+const char * libvlc_get_changeset(void)
{
- exception=mediacontrol_exception_init( exception );
- if( !self->p_playlist )
- {
- RAISE( mediacontrol_PlaylistException, "No playlist" );
- return;
- }
-
- playlist_Clear( self->p_playlist );
-
- return;
+ extern const char psz_vlc_changeset[];
+ return psz_vlc_changeset;
}
-mediacontrol_PlaylistSeq *
-mediacontrol_playlist_get_list( mediacontrol_Instance *self,
- mediacontrol_Exception *exception )
+/* export internal libvlc_instance for ugly hacks with libvlccore */
+vlc_object_t *libvlc_get_vlc_instance( libvlc_instance_t* p_instance )
{
- 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;
+ vlc_object_hold( p_instance->p_libvlc_int ) ;
+ return (vlc_object_t*) p_instance->p_libvlc_int ;
}
-/***************************************************************************
- * Status feedback
- ***************************************************************************/
-
-mediacontrol_StreamInformation *
-mediacontrol_get_stream_information( mediacontrol_Instance *self,
- mediacontrol_PositionKey a_key,
- mediacontrol_Exception *exception )
+void libvlc_free( void *ptr )
{
- mediacontrol_StreamInformation *retval;
- input_thread_t *p_input = self->p_playlist->p_input;
- vlc_value_t val;
-
- retval = ( mediacontrol_StreamInformation* )malloc( sizeof( mediacontrol_StreamInformation ) );
- if( ! retval )
- {
- RAISE( mediacontrol_InternalException, "Out of memory" );
- return NULL;
- }
-
- 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;
+ free( ptr );
}
projects / vlc / blobdiff