* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include "libvlc_internal.h"
#include <vlc/libvlc.h>
#include <vlc_demux.h>
#include <vlc_input.h>
#include "input/input_internal.h"
+#include "libvlc_internal.h"
+
+/*
+ * Release the associated input thread
+ *
+ * Object lock is NOT held.
+ */
+static void release_input_thread( libvlc_media_instance_t *p_mi )
+{
+ input_thread_t *p_input_thread;
+ vlc_bool_t should_destroy;
+
+ if( !p_mi || p_mi->i_input_id == -1 )
+ return;
+
+ p_input_thread = (input_thread_t*)vlc_object_get(
+ p_mi->p_libvlc_instance->p_libvlc_int,
+ p_mi->i_input_id );
+
+ p_mi->i_input_id = -1;
+
+ if( !p_input_thread )
+ return;
+
+ /* release for previous vlc_object_get */
+ vlc_object_release( p_input_thread );
+
+ should_destroy = p_input_thread->i_refcount == 1;
+
+ /* release for initial p_input_thread yield (see _new()) */
+ vlc_object_release( p_input_thread );
+
+ /* No one is tracking this input_thread appart us. Destroy it */
+ if( should_destroy )
+ {
+ /* We owned this one */
+ input_StopThread( p_input_thread );
+ var_Destroy( p_input_thread, "drawable" );
+ input_DestroyThread( p_input_thread );
+ }
+ else
+ {
+ /* XXX: hack the playlist doesn't retain the input thread,
+ * so we did it for the playlist (see _new_from_input_thread),
+ * revert that here. */
+ vlc_object_release( p_input_thread );
+ }
+}
/*
* Retrieve the input thread. Be sure to release the object
* once you are done with it. (libvlc Internal)
+ *
+ * Object lock is held.
*/
input_thread_t *libvlc_get_input_thread( libvlc_media_instance_t *p_mi,
- libvlc_exception_t *p_e )
+ libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
+ vlc_mutex_lock( &p_mi->object_lock );
+
if( !p_mi || p_mi->i_input_id == -1 )
+ {
+ vlc_mutex_unlock( &p_mi->object_lock );
RAISENULL( "Input is NULL" );
+ }
p_input_thread = (input_thread_t*)vlc_object_get(
p_mi->p_libvlc_instance->p_libvlc_int,
p_mi->i_input_id );
if( !p_input_thread )
+ {
+ vlc_mutex_unlock( &p_mi->object_lock );
RAISENULL( "Input does not exist" );
+ }
+ vlc_mutex_unlock( &p_mi->object_lock );
return p_input_thread;
}
+/*
+ * input_state_changed (Private) (input var "state" Callback)
+ */
+static int
+input_state_changed( vlc_object_t * p_this, char const * psz_cmd,
+ vlc_value_t oldval, vlc_value_t newval,
+ void * p_userdata )
+{
+ libvlc_media_instance_t * p_mi = p_userdata;
+ libvlc_event_t event;
+
+ if( newval.i_int == oldval.i_int )
+ return VLC_SUCCESS; /* No change since last time, don't propagate */
+
+ switch ( newval.i_int )
+ {
+ case END_S:
+ event.type = libvlc_MediaInstanceReachedEnd;
+ break;
+ case PAUSE_S:
+ event.type = libvlc_MediaInstancePaused;
+ break;
+ case PLAYING_S:
+ event.type = libvlc_MediaInstancePlayed;
+ break;
+ default:
+ return VLC_SUCCESS;
+ }
+
+ libvlc_event_send( p_mi->p_event_manager, &event );
+ return VLC_SUCCESS;
+}
+
+/*
+ * input_position_changed (Private) (input var "intf-change" Callback)
+ */
+static int
+input_position_changed( vlc_object_t * p_this, char const * psz_cmd,
+ vlc_value_t oldval, vlc_value_t newval,
+ void * p_userdata )
+{
+ libvlc_media_instance_t * p_mi = p_userdata;
+ vlc_value_t val;
+
+ if (!strcmp(psz_cmd, "intf" /* "-change" no need to go further */))
+ {
+ input_thread_t * p_input = (input_thread_t *)p_this;
+ var_Get( p_input, "position", &val );
+
+ if ((val.i_time % I64C(500000)) != 0)
+ return VLC_SUCCESS; /* No need to have a better precision */
+ var_Get( p_input, "state", &val );
+
+ if( val.i_int != PLAYING_S )
+ return VLC_SUCCESS; /* Don't send the position while stopped */
+ }
+ else
+ val.i_time = newval.i_time;
+
+ libvlc_event_t event;
+ event.type = libvlc_MediaInstancePositionChanged;
+ event.u.media_instance_position_changed.new_position = val.i_time;
+
+ libvlc_event_send( p_mi->p_event_manager, &event );
+ return VLC_SUCCESS;
+}
+
/**************************************************************************
* Create a Media Instance object
**************************************************************************/
libvlc_media_instance_t *
-libvlc_media_instance_new( libvlc_media_descriptor_t *p_md )
+libvlc_media_instance_new( libvlc_instance_t * p_libvlc_instance,
+ libvlc_exception_t * p_e )
{
libvlc_media_instance_t * p_mi;
- if( !p_md )
+ if( !p_libvlc_instance )
+ {
+ libvlc_exception_raise( p_e, "invalid libvlc instance" );
return NULL;
+ }
p_mi = malloc( sizeof(libvlc_media_instance_t) );
- p_mi->p_md = libvlc_media_descriptor_duplicate( p_md );
- p_mi->p_libvlc_instance = p_mi->p_md->p_libvlc_instance;
+ p_mi->p_md = NULL;
+ p_mi->drawable = 0;
+ p_mi->p_libvlc_instance = p_libvlc_instance;
p_mi->i_input_id = -1;
+ /* refcount strategy:
+ * - All items created by _new start with a refcount set to 1
+ * - Accessor _release decrease the refcount by 1, if after that
+ * operation the refcount is 0, the object is destroyed.
+ * - Accessor _retain increase the refcount by 1 (XXX: to implement) */
+ p_mi->i_refcount = 1;
+ /* object_lock strategy:
+ * - No lock held in constructor
+ * - Lock when accessing all variable this lock is held
+ * - Lock when attempting to destroy the object the lock is also held */
+ vlc_mutex_init( p_mi->p_libvlc_instance->p_libvlc_int,
+ &p_mi->object_lock );
+ p_mi->p_event_manager = libvlc_event_manager_new( p_mi,
+ p_libvlc_instance, p_e );
+ if( libvlc_exception_raised( p_e ) )
+ {
+ free( p_mi );
+ return NULL;
+ }
+
+ libvlc_event_manager_register_event_type( p_mi->p_event_manager,
+ libvlc_MediaInstanceReachedEnd, p_e );
+
+ return p_mi;
+}
+
+/**************************************************************************
+ * Create a Media Instance object with a media descriptor
+ **************************************************************************/
+libvlc_media_instance_t *
+libvlc_media_instance_new_from_media_descriptor(
+ libvlc_media_descriptor_t * p_md,
+ libvlc_exception_t *p_e )
+{
+ libvlc_media_instance_t * p_mi;
+ p_mi = libvlc_media_instance_new( p_md->p_libvlc_instance, p_e );
+
+ if( !p_mi )
+ return NULL;
+
+ libvlc_media_descriptor_retain( p_md );
+ p_mi->p_md = p_md;
return p_mi;
}
{
libvlc_media_instance_t * p_mi;
- p_mi = malloc( sizeof(libvlc_media_instance_t) );
+ if( !p_input )
+ {
+ libvlc_exception_raise( p_e, "invalid input thread" );
+ return NULL;
+ }
+
+ p_mi = libvlc_media_instance_new( p_libvlc_instance, p_e );
+
+ if( !p_mi )
+ return NULL;
+
p_mi->p_md = libvlc_media_descriptor_new_from_input_item(
p_libvlc_instance,
p_input->p->input.p_item, p_e );
- if( libvlc_exception_raised( p_e ) )
+ if( !p_mi->p_md )
{
- free( p_mi );
+ libvlc_media_instance_destroy( p_mi );
return NULL;
}
- p_mi->p_libvlc_instance = p_libvlc_instance;
p_mi->i_input_id = p_input->i_object_id;
-
+
/* will be released in media_instance_release() */
vlc_object_yield( p_input );
+ /* XXX: Hack as the playlist doesn't yield the input thread we retain
+ * the input for the playlist. (see corresponding hack in _release) */
+ vlc_object_yield( p_input );
+
return p_mi;
}
/**************************************************************************
- * Destroy a Media Instance object
+ * Destroy a Media Instance object (libvlc internal)
+ *
+ * Warning: No lock held here, but hey, this is internal.
**************************************************************************/
void libvlc_media_instance_destroy( libvlc_media_instance_t *p_mi )
{
input_thread_t *p_input_thread;
libvlc_exception_t p_e;
- /* XXX: locking */
libvlc_exception_init( &p_e );
if( !p_mi )
p_input_thread = libvlc_get_input_thread( p_mi, &p_e );
if( libvlc_exception_raised( &p_e ) )
+ {
+ libvlc_event_manager_release( p_mi->p_event_manager );
+ free( p_mi );
return; /* no need to worry about no input thread */
-
+ }
+ vlc_mutex_destroy( &p_mi->object_lock );
+
input_DestroyThread( p_input_thread );
- libvlc_media_descriptor_destroy( p_mi->p_md );
+ libvlc_media_descriptor_release( p_mi->p_md );
free( p_mi );
}
**************************************************************************/
void libvlc_media_instance_release( libvlc_media_instance_t *p_mi )
{
- input_thread_t *p_input_thread;
- libvlc_exception_t p_e;
+ if( !p_mi )
+ return;
- /* XXX: locking */
- libvlc_exception_init( &p_e );
+ vlc_mutex_lock( &p_mi->object_lock );
+
+ p_mi->i_refcount--;
+
+ if( p_mi->i_refcount > 0 )
+ {
+ vlc_mutex_unlock( &p_mi->object_lock );
+ return;
+ }
+ vlc_mutex_unlock( &p_mi->object_lock );
+ vlc_mutex_destroy( &p_mi->object_lock );
+ libvlc_event_manager_release( p_mi->p_event_manager );
+
+ release_input_thread( p_mi );
+
+ libvlc_media_descriptor_release( p_mi->p_md );
+
+ free( p_mi );
+}
+
+/**************************************************************************
+ * Retain a Media Instance object
+ **************************************************************************/
+void libvlc_media_instance_retain( libvlc_media_instance_t *p_mi )
+{
if( !p_mi )
return;
- p_input_thread = libvlc_get_input_thread( p_mi, &p_e );
+ p_mi->i_refcount++;
+}
+/**************************************************************************
+ * Set the Media descriptor associated with the instance
+ **************************************************************************/
+void libvlc_media_instance_set_media_descriptor(
+ libvlc_media_instance_t *p_mi,
+ libvlc_media_descriptor_t *p_md,
+ libvlc_exception_t *p_e )
+{
+ (void)p_e;
- if( !libvlc_exception_raised( &p_e ) )
- {
- /* release for previous libvlc_get_input_thread */
- vlc_object_release( p_input_thread );
+ if( !p_mi )
+ return;
- /* release for initial p_input_thread yield (see _new()) */
- vlc_object_release( p_input_thread );
+ vlc_mutex_lock( &p_mi->object_lock );
+
+ release_input_thread( p_mi );
+
+ libvlc_media_descriptor_release( p_mi->p_md );
- /* No one is tracking this input_thread appart us. Destroy it */
- if( p_input_thread->i_refcount <= 0 )
- input_DestroyThread( p_input_thread );
- /* btw, we still have an XXX locking here */
+ if( !p_md )
+ {
+ p_mi->p_md = NULL;
+ vlc_mutex_unlock( &p_mi->object_lock );
+ return; /* It is ok to pass a NULL md */
}
- libvlc_media_descriptor_destroy( p_mi->p_md );
+ libvlc_media_descriptor_retain( p_md );
+ p_mi->p_md = p_md;
+
+ /* The policy here is to ignore that we were created using a different
+ * libvlc_instance, because we don't really care */
+ p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
- free( p_mi );
+ vlc_mutex_unlock( &p_mi->object_lock );
+}
+
+/**************************************************************************
+ * Get the Media descriptor associated with the instance
+ **************************************************************************/
+libvlc_media_descriptor_t *
+libvlc_media_instance_get_media_descriptor(
+ libvlc_media_instance_t *p_mi,
+ libvlc_exception_t *p_e )
+{
+ (void)p_e;
+
+ if( !p_mi->p_md )
+ return NULL;
+
+ libvlc_media_descriptor_retain( p_mi->p_md );
+ return p_mi->p_md;
+}
+
+/**************************************************************************
+ * Get the event Manager
+ **************************************************************************/
+libvlc_event_manager_t *
+libvlc_media_instance_event_manager(
+ libvlc_media_instance_t *p_mi,
+ libvlc_exception_t *p_e )
+{
+ (void)p_e;
+
+ return p_mi->p_event_manager;
}
/**************************************************************************
{
input_thread_t * p_input_thread;
- if( p_mi->i_input_id != -1)
+ if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
{
+ /* A thread alread exists, send it a play message */
vlc_value_t val;
val.i_int = PLAYING_S;
- /* A thread alread exists, send it a play message */
- p_input_thread = libvlc_get_input_thread( p_mi, p_e );
-
- if( libvlc_exception_raised( p_e ) )
- return;
-
input_Control( p_input_thread, INPUT_CONTROL_SET_STATE, PLAYING_S );
vlc_object_release( p_input_thread );
return;
}
+ /* Ignore previous exception */
+ libvlc_exception_clear( p_e );
+
+ vlc_mutex_lock( &p_mi->object_lock );
+
+ if( !p_mi->p_md )
+ {
+ libvlc_exception_raise( p_e, "no associated media descriptor" );
+ vlc_mutex_unlock( &p_mi->object_lock );
+ return;
+ }
+
p_input_thread = input_CreateThread( p_mi->p_libvlc_instance->p_libvlc_int,
p_mi->p_md->p_input_item );
p_mi->i_input_id = p_input_thread->i_object_id;
+ if( p_mi->drawable )
+ {
+ vlc_value_t val;
+ val.i_int = p_mi->drawable;
+ var_Create( p_input_thread, "drawable", VLC_VAR_DOINHERIT );
+ var_Set( p_input_thread, "drawable", val );
+ }
+ var_AddCallback( p_input_thread, "state", input_state_changed, p_mi );
+ var_AddCallback( p_input_thread, "intf-change", input_position_changed, p_mi );
+
/* will be released in media_instance_release() */
vlc_object_yield( p_input_thread );
+
+ vlc_mutex_unlock( &p_mi->object_lock );
}
/**************************************************************************
p_input_thread = libvlc_get_input_thread( p_mi, p_e );
- if( libvlc_exception_raised( p_e ) )
+ if( !p_input_thread )
return;
input_Control( p_input_thread, INPUT_CONTROL_SET_STATE, val );
vlc_object_release( p_input_thread );
}
+/**************************************************************************
+ * Stop
+ **************************************************************************/
+void libvlc_media_instance_stop( libvlc_media_instance_t *p_mi,
+ libvlc_exception_t *p_e )
+{
+ //libvlc_exception_raise( p_e, "Not implemented" );
+}
+
+/**************************************************************************
+ * Set Drawable
+ **************************************************************************/
+void libvlc_media_instance_set_drawable( libvlc_media_instance_t *p_mi,
+ libvlc_drawable_t drawable,
+ libvlc_exception_t *p_e )
+{
+ p_mi->drawable = drawable;
+}
+
/**************************************************************************
* Getters for stream information
**************************************************************************/
void libvlc_media_instance_set_position(
libvlc_media_instance_t *p_mi,
float position,
- libvlc_exception_t *p_e )
+ libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
float libvlc_media_instance_get_fps(
libvlc_media_instance_t *p_mi,
- libvlc_exception_t *p_e)
+ libvlc_exception_t *p_e)
{
double f_fps = 0.0;
input_thread_t *p_input_thread;
vlc_bool_t libvlc_media_instance_will_play(
libvlc_media_instance_t *p_mi,
- libvlc_exception_t *p_e)
+ libvlc_exception_t *p_e)
{
input_thread_t *p_input_thread =
libvlc_get_input_thread ( p_mi, p_e);
if ( !p_input_thread )
return VLC_FALSE;
- if ( !p_input_thread->b_die && !p_input_thread->b_dead )
+ if ( !p_input_thread->b_die && !p_input_thread->b_dead )
{
vlc_object_release( p_input_thread );
return VLC_TRUE;
void libvlc_media_instance_set_rate(
libvlc_media_instance_t *p_mi,
float rate,
- libvlc_exception_t *p_e )
+ libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
return val.i_int;
}
-
projects / vlc / blobdiff