vlc/src/control/media_player.c

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/*****************************************************************************
* media_player.c: Libvlc API Media Instance management functions
*****************************************************************************
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* Copyright (C) 2005-2009 the VideoLAN team
* $Id$
*
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* 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
* 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
2006-01-13 00:10:04 +01:00
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <vlc/libvlc.h>
#include <vlc/libvlc_media.h>
#include <vlc/libvlc_events.h>
#include <vlc_demux.h>
#include <vlc_input.h>
#include <vlc_vout.h>
#include "libvlc.h"
#include "libvlc_internal.h"
#include "media_internal.h" // libvlc_media_set_state()
#include "media_player_internal.h"
static int
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int
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input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int SnapshotTakenCallback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data );
static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
/*
* Release the associated input thread.
*
* Object lock is NOT held.
*/
static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
{
input_thread_t * p_input_thread;
if( !p_mi || !p_mi->p_input_thread )
return;
p_input_thread = p_mi->p_input_thread;
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var_DelCallback( p_input_thread, "can-seek",
input_seekable_changed, p_mi );
var_DelCallback( p_input_thread, "can-pause",
input_pausable_changed, p_mi );
var_DelCallback( p_input_thread, "intf-event",
input_event_changed, p_mi );
/* We owned this one */
input_Stop( p_input_thread, b_input_abort );
vlc_thread_join( p_input_thread );
var_Destroy( p_input_thread, "drawable-hwnd" );
var_Destroy( p_input_thread, "drawable-xid" );
var_Destroy( p_input_thread, "drawable-agl" );
vlc_object_release( p_input_thread );
p_mi->p_input_thread = NULL;
}
/*
* Retrieve the input thread. Be sure to release the object
* once you are done with it. (libvlc Internal)
*
* Function will lock the object.
*/
input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi,
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libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
if( !p_mi ) RAISENULL( "Media Instance is NULL" );
vlc_mutex_lock( &p_mi->object_lock );
if( !p_mi->p_input_thread )
{
vlc_mutex_unlock( &p_mi->object_lock );
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RAISENULL( "Input is NULL" );
}
p_input_thread = p_mi->p_input_thread;
vlc_object_hold( p_input_thread );
vlc_mutex_unlock( &p_mi->object_lock );
return p_input_thread;
}
static int
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
VLC_UNUSED(p_this);
VLC_UNUSED(psz_cmd);
libvlc_media_player_t * p_mi = p_userdata;
libvlc_event_t event;
libvlc_media_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
event.type = libvlc_MediaPlayerSeekableChanged;
event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
libvlc_event_send( p_mi->p_event_manager, &event );
return VLC_SUCCESS;
}
static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
VLC_UNUSED(p_this);
VLC_UNUSED(psz_cmd);
libvlc_media_player_t * p_mi = p_userdata;
libvlc_event_t event;
libvlc_media_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
event.type = libvlc_MediaPlayerPausableChanged;
event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
libvlc_event_send( p_mi->p_event_manager, &event );
return VLC_SUCCESS;
}
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static int
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input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
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vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
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input_thread_t * p_input = (input_thread_t *)p_this;
libvlc_media_player_t * p_mi = p_userdata;
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libvlc_event_t event;
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assert( !strcmp( psz_cmd, "intf-event" ) );
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if( newval.i_int == INPUT_EVENT_STATE )
{
libvlc_state_t libvlc_state;
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switch ( var_GetInteger( p_input, "state" ) )
{
case INIT_S:
libvlc_state = libvlc_NothingSpecial;
event.type = libvlc_MediaPlayerNothingSpecial;
break;
case OPENING_S:
libvlc_state = libvlc_Opening;
event.type = libvlc_MediaPlayerOpening;
break;
case PLAYING_S:
libvlc_state = libvlc_Playing;
event.type = libvlc_MediaPlayerPlaying;
break;
case PAUSE_S:
libvlc_state = libvlc_Paused;
event.type = libvlc_MediaPlayerPaused;
break;
case END_S:
libvlc_state = libvlc_Ended;
event.type = libvlc_MediaPlayerEndReached;
break;
case ERROR_S:
libvlc_state = libvlc_Error;
event.type = libvlc_MediaPlayerEncounteredError;
break;
default:
return VLC_SUCCESS;
}
libvlc_media_set_state( p_mi->p_md, libvlc_state, NULL );
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libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_ABORT )
{
libvlc_state_t libvlc_state = libvlc_Stopped;
event.type = libvlc_MediaPlayerStopped;
libvlc_media_set_state( p_mi->p_md, libvlc_state, NULL );
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_POSITION )
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{
if( var_GetInteger( p_input, "state" ) != PLAYING_S )
return VLC_SUCCESS; /* Don't send the position while stopped */
/* */
event.type = libvlc_MediaPlayerPositionChanged;
event.u.media_player_position_changed.new_position =
var_GetFloat( p_input, "position" );
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libvlc_event_send( p_mi->p_event_manager, &event );
/* */
event.type = libvlc_MediaPlayerTimeChanged;
event.u.media_player_time_changed.new_time =
var_GetTime( p_input, "time" );
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libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_LENGTH )
{
event.type = libvlc_MediaPlayerLengthChanged;
event.u.media_player_length_changed.new_length =
var_GetTime( p_input, "length" );
libvlc_event_send( p_mi->p_event_manager, &event );
}
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return VLC_SUCCESS;
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}
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static void libvlc_media_player_destroy( libvlc_media_player_t * );
/**************************************************************************
* Create a Media Instance object.
*
* 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)
*
* Object locking strategy:
* - No lock held while in constructor.
* - When accessing any member variable this lock is held. (XXX who locks?)
* - When attempting to destroy the object the lock is also held.
**************************************************************************/
libvlc_media_player_t *
libvlc_media_player_new( libvlc_instance_t * p_libvlc_instance,
libvlc_exception_t * p_e )
{
libvlc_media_player_t * p_mi;
if( !p_libvlc_instance )
{
libvlc_exception_raise( p_e, "invalid libvlc instance" );
return NULL;
}
p_mi = malloc( sizeof(libvlc_media_player_t) );
if( !p_mi )
{
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libvlc_exception_raise( p_e, "not enough memory" );
return NULL;
}
p_mi->p_md = NULL;
p_mi->drawable.agl = 0;
p_mi->drawable.xid = 0;
p_mi->drawable.hwnd = NULL;
p_mi->drawable.nsobject = NULL;
p_mi->p_libvlc_instance = p_libvlc_instance;
p_mi->p_input_thread = NULL;
p_mi->i_refcount = 1;
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vlc_mutex_init( &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 ) )
{
vlc_mutex_destroy( &p_mi->object_lock );
free( p_mi );
return NULL;
}
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerNothingSpecial, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerOpening, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerBuffering, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerPlaying, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerPaused, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerStopped, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerForward, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerBackward, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerEndReached, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerEncounteredError, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerPositionChanged, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerTimeChanged, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerLengthChanged, p_e );
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libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerTitleChanged, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerSeekableChanged, p_e );
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerPausableChanged, p_e );
/* Snapshot initialization */
libvlc_event_manager_register_event_type( p_mi->p_event_manager,
libvlc_MediaPlayerSnapshotTaken, p_e );
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/* Attach a var callback to the global object to provide the glue between
vout_thread that generates the event and media_player that re-emits it
with its own event manager
*/
var_Create( p_libvlc_instance->p_libvlc_int, "vout-snapshottaken",
VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
var_AddCallback( p_libvlc_instance->p_libvlc_int, "vout-snapshottaken",
SnapshotTakenCallback, p_mi );
return p_mi;
}
/**************************************************************************
* Create a Media Instance object with a media descriptor.
**************************************************************************/
libvlc_media_player_t *
libvlc_media_player_new_from_media(
libvlc_media_t * p_md,
libvlc_exception_t *p_e )
{
libvlc_media_player_t * p_mi;
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p_mi = libvlc_media_player_new( p_md->p_libvlc_instance, p_e );
if( !p_mi )
return NULL;
libvlc_media_retain( p_md );
p_mi->p_md = p_md;
return p_mi;
}
/**************************************************************************
* Destroy a Media Instance object (libvlc internal)
*
* Warning: No lock held here, but hey, this is internal. Caller must lock.
**************************************************************************/
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static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
{
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assert( p_mi );
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/* Detach Callback from the main libvlc object */
var_DelCallback( p_mi->p_libvlc_instance->p_libvlc_int,
"vout-snapshottaken", SnapshotTakenCallback, p_mi );
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/* Realease the input thread */
release_input_thread( p_mi, true );
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libvlc_event_manager_release( p_mi->p_event_manager );
libvlc_media_release( p_mi->p_md );
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vlc_mutex_destroy( &p_mi->object_lock );
free( p_mi );
}
/**************************************************************************
* Release a Media Instance object.
*
* Function does the locking.
**************************************************************************/
void libvlc_media_player_release( libvlc_media_player_t *p_mi )
{
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bool destroy;
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assert( p_mi );
vlc_mutex_lock( &p_mi->object_lock );
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destroy = !--p_mi->i_refcount;
vlc_mutex_unlock( &p_mi->object_lock );
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if( destroy )
libvlc_media_player_destroy( p_mi );
}
/**************************************************************************
* Retain a Media Instance object.
*
* Caller must hold the lock.
**************************************************************************/
void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
{
assert( p_mi );
vlc_mutex_lock( &p_mi->object_lock );
p_mi->i_refcount++;
vlc_mutex_unlock( &p_mi->object_lock );
}
/**************************************************************************
* Set the Media descriptor associated with the instance.
*
* Enter without lock -- function will lock the object.
**************************************************************************/
void libvlc_media_player_set_media(
libvlc_media_player_t *p_mi,
libvlc_media_t *p_md,
libvlc_exception_t *p_e )
{
VLC_UNUSED(p_e);
if( !p_mi )
return;
vlc_mutex_lock( &p_mi->object_lock );
/* FIXME I am not sure if it is a user request or on die(eof/error)
* request here */
release_input_thread( p_mi,
p_mi->p_input_thread &&
!p_mi->p_input_thread->b_eof &&
!p_mi->p_input_thread->b_error );
if( p_mi->p_md )
libvlc_media_set_state( p_mi->p_md, libvlc_NothingSpecial, p_e );
libvlc_media_release( p_mi->p_md );
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_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;
vlc_mutex_unlock( &p_mi->object_lock );
}
/**************************************************************************
* Get the Media descriptor associated with the instance.
**************************************************************************/
libvlc_media_t *
libvlc_media_player_get_media(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
libvlc_media_t *p_m;
VLC_UNUSED(p_e);
vlc_mutex_lock( &p_mi->object_lock );
p_m = p_mi->p_md;
if( p_m )
libvlc_media_retain( p_mi->p_md );
vlc_mutex_unlock( &p_mi->object_lock );
return p_mi->p_md;
}
/**************************************************************************
* Get the event Manager.
**************************************************************************/
libvlc_event_manager_t *
libvlc_media_player_event_manager(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
VLC_UNUSED(p_e);
return p_mi->p_event_manager;
}
/**************************************************************************
* Trigger a snapshot Taken Event.
*************************************************************************/
static int SnapshotTakenCallback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
VLC_UNUSED(p_this) ;
libvlc_media_player_t* p_mi = (libvlc_media_player_t*) p_data ;
libvlc_event_t event ;
event.type = libvlc_MediaPlayerSnapshotTaken ;
event.u.media_player_snapshot_taken.psz_filename = newval.psz_string ;
/* Snapshot psz data is a vlc_variable owned by libvlc object .
Its memmory management is taken care by the obj*/
msg_Dbg( p_this, "about to emit libvlc_snapshot_taken.make psz_str=0x%p"
" (%s)", event.u.media_player_snapshot_taken.psz_filename,
event.u.media_player_snapshot_taken.psz_filename );
libvlc_event_send( p_mi->p_event_manager, &event );
return VLC_SUCCESS;
}
/**************************************************************************
* Tell media player to start playing.
**************************************************************************/
void libvlc_media_player_play( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t * p_input_thread;
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if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
{
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/* A thread already exists, send it a play message */
input_Control( p_input_thread, INPUT_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_mi->p_input_thread = input_Create( p_mi->p_libvlc_instance->p_libvlc_int,
p_mi->p_md->p_input_item, NULL, NULL );
if( !p_mi->p_input_thread )
{
vlc_mutex_unlock( &p_mi->object_lock );
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return;
}
p_input_thread = p_mi->p_input_thread;
var_Create( p_input_thread, "drawable-agl", VLC_VAR_INTEGER );
if( p_mi->drawable.agl )
var_SetInteger( p_input_thread, "drawable-agl", p_mi->drawable.agl );
var_Create( p_input_thread, "drawable-xid", VLC_VAR_INTEGER );
if( p_mi->drawable.xid )
var_SetInteger( p_input_thread, "drawable-xid", p_mi->drawable.xid );
var_Create( p_input_thread, "drawable-hwnd", VLC_VAR_ADDRESS );
if( p_mi->drawable.hwnd != NULL )
var_SetAddress( p_input_thread, "drawable-hwnd", p_mi->drawable.hwnd );
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var_Create( p_input_thread, "drawable-nsobject", VLC_VAR_ADDRESS );
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if( p_mi->drawable.nsobject != NULL )
var_SetAddress( p_input_thread, "drawable-nsobject", p_mi->drawable.nsobject );
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var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
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var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
if( input_Start( p_input_thread ) )
{
vlc_object_release( p_input_thread );
p_mi->p_input_thread = NULL;
}
vlc_mutex_unlock( &p_mi->object_lock );
}
/**************************************************************************
* Pause.
**************************************************************************/
void libvlc_media_player_pause( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
if( !p_input_thread )
return;
libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
if( state == libvlc_Playing || state == libvlc_Buffering )
{
if( libvlc_media_player_can_pause( p_mi, p_e ) )
input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
else
libvlc_media_player_stop( p_mi, p_e );
}
else
input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
vlc_object_release( p_input_thread );
}
/**************************************************************************
* Tells whether the media player is currently playing.
*
* Enter with lock held.
**************************************************************************/
int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
return (libvlc_Playing == state) || (libvlc_Buffering == state);
}
/**************************************************************************
* Stop playing.
**************************************************************************/
void libvlc_media_player_stop( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
if( state == libvlc_Playing ||
state == libvlc_Paused ||
state == libvlc_Buffering )
{
/* Send a stop notification event only if we are in playing,
* buffering or paused states */
libvlc_media_set_state( p_mi->p_md, libvlc_Stopped, p_e );
/* Construct and send the event */
libvlc_event_t event;
event.type = libvlc_MediaPlayerStopped;
libvlc_event_send( p_mi->p_event_manager, &event );
}
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vlc_mutex_lock( &p_mi->object_lock );
release_input_thread( p_mi, true ); /* This will stop the input thread */
vlc_mutex_unlock( &p_mi->object_lock );
}
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/**************************************************************************
* set_nsobject
**************************************************************************/
void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
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void * drawable,
libvlc_exception_t *p_e )
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{
(void) p_e;
p_mi->drawable.nsobject = drawable;
}
/**************************************************************************
2009-05-01 16:31:37 +02:00
* get_nsobject
2009-04-11 19:29:35 +02:00
**************************************************************************/
2009-05-25 12:04:23 +02:00
void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
2009-04-11 19:29:35 +02:00
{
return p_mi->drawable.nsobject;
}
/**************************************************************************
* set_agl
**************************************************************************/
void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
uint32_t drawable,
libvlc_exception_t *p_e )
{
(void) p_e;
p_mi->drawable.agl = drawable;
}
/**************************************************************************
* get_agl
**************************************************************************/
uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
{
return p_mi->drawable.agl;
}
/**************************************************************************
* set_xwindow
**************************************************************************/
void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
uint32_t drawable,
libvlc_exception_t *p_e )
{
(void) p_e;
p_mi->drawable.xid = drawable;
}
/**************************************************************************
* get_xwindow
**************************************************************************/
uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
{
return p_mi->drawable.xid;
}
/**************************************************************************
* set_hwnd
**************************************************************************/
void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
void *drawable,
libvlc_exception_t *p_e )
{
(void) p_e;
p_mi->drawable.hwnd = drawable;
}
/**************************************************************************
* get_hwnd
**************************************************************************/
void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
{
return p_mi->drawable.hwnd;
}
/**************************************************************************
* Set Drawable
**************************************************************************/
void libvlc_media_player_set_drawable( libvlc_media_player_t *p_mi,
libvlc_drawable_t drawable,
libvlc_exception_t *p_e )
{
#ifdef WIN32
if (sizeof (HWND) <= sizeof (libvlc_drawable_t))
p_mi->drawable.hwnd = (HWND)drawable;
else
libvlc_exception_raise(p_e, "Operation not supported");
#elif defined(__APPLE__)
p_mi->drawable.agl = drawable;
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(void) p_e;
#else
p_mi->drawable.xid = drawable;
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(void) p_e;
#endif
}
/**************************************************************************
* Get Drawable
**************************************************************************/
libvlc_drawable_t
libvlc_media_player_get_drawable ( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
VLC_UNUSED(p_e);
#ifdef WIN32
if (sizeof (HWND) <= sizeof (libvlc_drawable_t))
return (libvlc_drawable_t)p_mi->drawable.hwnd;
else
return 0;
#elif defined(__APPLE__)
return p_mi->drawable.agl;
#else
return p_mi->drawable.xid;
#endif
}
/**************************************************************************
* Getters for stream information
**************************************************************************/
libvlc_time_t libvlc_media_player_get_length(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
libvlc_time_t i_time;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
2006-10-29 10:35:43 +01:00
return -1;
i_time = var_GetTime( p_input_thread, "length" );
vlc_object_release( p_input_thread );
return (i_time+500LL)/1000LL;
}
libvlc_time_t libvlc_media_player_get_time(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
libvlc_time_t i_time;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
2006-10-29 10:35:43 +01:00
return -1;
i_time = var_GetTime( p_input_thread , "time" );
vlc_object_release( p_input_thread );
return (i_time+500LL)/1000LL;
}
void libvlc_media_player_set_time(
libvlc_media_player_t *p_mi,
libvlc_time_t i_time,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
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return;
var_SetTime( p_input_thread, "time", i_time*1000LL );
vlc_object_release( p_input_thread );
}
void libvlc_media_player_set_position(
libvlc_media_player_t *p_mi,
float position,
2007-09-10 20:56:52 +02:00
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
2006-10-29 10:35:43 +01:00
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
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return;
var_SetFloat( p_input_thread, "position", position );
vlc_object_release( p_input_thread );
}
float libvlc_media_player_get_position(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
2006-10-29 10:35:43 +01:00
return -1.0;
var_Get( p_input_thread, "position", &val );
vlc_object_release( p_input_thread );
return val.f_float;
}
void libvlc_media_player_set_chapter(
libvlc_media_player_t *p_mi,
int chapter,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
return;
var_SetInteger( p_input_thread, "chapter", chapter );
vlc_object_release( p_input_thread );
}
int libvlc_media_player_get_chapter(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return -1;
var_Get( p_input_thread, "chapter", &val );
vlc_object_release( p_input_thread );
return val.i_int;
}
int libvlc_media_player_get_chapter_count(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return -1;
var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
vlc_object_release( p_input_thread );
return val.i_int;
}
int libvlc_media_player_get_chapter_count_for_title(
libvlc_media_player_t *p_mi,
int i_title,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return -1;
2008-10-11 16:44:10 +02:00
char *psz_name;
if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
{
vlc_object_release( p_input_thread );
return -1;
}
var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
vlc_object_release( p_input_thread );
free( psz_name );
return val.i_int;
}
void libvlc_media_player_set_title(
libvlc_media_player_t *p_mi,
int i_title,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
return;
var_SetInteger( p_input_thread, "title", i_title );
vlc_object_release( p_input_thread );
//send event
libvlc_event_t event;
event.type = libvlc_MediaPlayerTitleChanged;
event.u.media_player_title_changed.new_title = i_title;
libvlc_event_send( p_mi->p_event_manager, &event );
}
int libvlc_media_player_get_title(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return -1;
var_Get( p_input_thread, "title", &val );
vlc_object_release( p_input_thread );
return val.i_int;
}
int libvlc_media_player_get_title_count(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return -1;
var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
vlc_object_release( p_input_thread );
return val.i_int;
}
void libvlc_media_player_next_chapter(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
return;
int i_type = var_Type( p_input_thread, "next-chapter" );
var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
"next-chapter":"next-title", true );
vlc_object_release( p_input_thread );
}
void libvlc_media_player_previous_chapter(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
if( !p_input_thread )
return;
int i_type = var_Type( p_input_thread, "next-chapter" );
var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
"prev-chapter":"prev-title", true );
vlc_object_release( p_input_thread );
}
float libvlc_media_player_get_fps(
libvlc_media_player_t *p_mi,
2007-09-10 20:56:52 +02:00
libvlc_exception_t *p_e)
{
input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
double f_fps = 0.0;
if( p_input_thread )
2006-06-10 19:36:22 +02:00
{
if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
f_fps = 0.0;
2006-06-10 19:36:22 +02:00
vlc_object_release( p_input_thread );
}
return f_fps;
}
int libvlc_media_player_will_play( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e)
{
input_thread_t *p_input_thread =
libvlc_get_input_thread ( p_mi, p_e);
if ( !p_input_thread )
return false;
2007-09-10 20:56:52 +02:00
if ( !p_input_thread->b_die && !p_input_thread->b_dead )
{
vlc_object_release( p_input_thread );
return true;
}
vlc_object_release( p_input_thread );
return false;
}
void libvlc_media_player_set_rate(
libvlc_media_player_t *p_mi,
float rate,
2007-09-10 20:56:52 +02:00
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
bool b_can_rewind;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
2006-10-29 10:35:43 +01:00
return;
b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
if( (rate < 0.0) && !b_can_rewind )
{
vlc_object_release( p_input_thread );
libvlc_exception_raise( p_e, "Rate value is invalid" );
return;
}
var_SetInteger( p_input_thread, "rate", 1000.0f/rate );
vlc_object_release( p_input_thread );
}
float libvlc_media_player_get_rate(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
bool b_can_rewind;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
return 0.0; /* rate < 0 indicates rewind */
var_Get( p_input_thread, "rate", &val );
b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
if( (val.i_int < 0) && !b_can_rewind )
{
libvlc_exception_raise( p_e, "invalid rate" );
return 0.0;
}
vlc_object_release( p_input_thread );
return (float)1000.0f/val.i_int;
}
libvlc_state_t libvlc_media_player_get_state(
libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
libvlc_state_t state = libvlc_Ended;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if( !p_input_thread )
{
/* We do return the right value, no need to throw an exception */
if( libvlc_exception_raised( p_e ) )
libvlc_exception_clear( p_e );
return state;
}
state = libvlc_media_get_state( p_mi->p_md, NULL );
2009-03-10 16:01:17 +01:00
if( state == libvlc_Playing )
{
float caching;
caching = var_GetFloat( p_input_thread, "cache" );
if( caching > 0.0 && caching < 1.0 )
state = libvlc_Buffering;
}
vlc_object_release( p_input_thread );
return state;
}
int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if ( !p_input_thread )
{
/* We do return the right value, no need to throw an exception */
if( libvlc_exception_raised( p_e ) )
libvlc_exception_clear( p_e );
return false;
}
var_Get( p_input_thread, "can-seek", &val );
vlc_object_release( p_input_thread );
return val.b_bool;
}
/* internal function, used by audio, video */
libvlc_track_description_t *
libvlc_get_track_description( libvlc_media_player_t *p_mi,
const char *psz_variable,
libvlc_exception_t *p_e )
{
input_thread_t *p_input = libvlc_get_input_thread( p_mi, p_e );
2009-05-20 22:06:07 +02:00
libvlc_track_description_t *p_track_description = NULL,
*p_actual, *p_previous;
if( !p_input )
return NULL;
vlc_value_t val_list, text_list;
var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
2009-05-20 22:06:07 +02:00
/* no tracks */
if( val_list.p_list->i_count <= 0 )
goto end;
p_track_description = ( libvlc_track_description_t * )
malloc( sizeof( libvlc_track_description_t ) );
if ( !p_track_description )
{
2009-05-22 15:13:45 +02:00
libvlc_exception_raise( p_e, "not enough memory" );
2009-05-20 22:06:07 +02:00
goto end;
}
p_actual = p_track_description;
p_previous = NULL;
for( int i = 0; i < val_list.p_list->i_count; i++ )
{
if( !p_actual )
{
p_actual = ( libvlc_track_description_t * )
malloc( sizeof( libvlc_track_description_t ) );
if ( !p_actual )
{
libvlc_track_description_release( p_track_description );
2009-05-22 15:13:45 +02:00
libvlc_exception_raise( p_e, "not enough memory" );
2009-05-20 22:06:07 +02:00
goto end;
}
}
p_actual->i_id = val_list.p_list->p_values[i].i_int;
p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
p_actual->p_next = NULL;
if( p_previous )
p_previous->p_next = p_actual;
p_previous = p_actual;
p_actual = NULL;
}
2009-05-20 22:06:07 +02:00
end:
var_FreeList( &val_list, &text_list );
vlc_object_release( p_input );
return p_track_description;
}
void libvlc_track_description_release( libvlc_track_description_t *p_td )
{
libvlc_track_description_t *p_actual, *p_before;
p_actual = p_td;
while ( p_actual )
{
free( p_actual->psz_name );
p_before = p_actual;
p_actual = p_before->p_next;
free( p_before );
}
}
int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi,
libvlc_exception_t *p_e )
{
input_thread_t *p_input_thread;
vlc_value_t val;
p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
if ( !p_input_thread )
{
/* We do return the right value, no need to throw an exception */
if( libvlc_exception_raised( p_e ) )
libvlc_exception_clear( p_e );
return false;
}
var_Get( p_input_thread, "can-pause", &val );
vlc_object_release( p_input_thread );
return val.b_bool;
}