/*****************************************************************************
* core.c: Core functions : init, playlist, stream management
*****************************************************************************
* Copyright (C) 2005 the VideoLAN team
* $Id$
*
* Authors: Olivier Aubert <olivier.aubert@liris.univ-lyon1.fr>
*
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "mediacontrol_internal.h"
#include <vlc/mediacontrol.h>
#include <vlc/libvlc.h>
#include <vlc_common.h>
#include <vlc_interface.h>
#include <vlc_playlist.h>
#include <vlc_vout.h>
#include <vlc_aout.h>
#include <vlc_input.h>
#include <vlc_osd.h>
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <errno.h> /* ENOMEM */
#include <stdio.h>
#include <ctype.h>
#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
mediacontrol_Instance* mediacontrol_new( int argc, char** argv, mediacontrol_Exception *exception )
{
mediacontrol_Instance* retval;
libvlc_exception_t ex;
libvlc_exception_init( &ex );
mediacontrol_exception_init( exception );
retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
if( !retval )
RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
retval->p_instance = libvlc_new( argc, (const char**)argv, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
retval->p_media_player = libvlc_media_player_new( retval->p_instance, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
return retval;
}
void
mediacontrol_exit( mediacontrol_Instance *self )
{
libvlc_release( self->p_instance );
}
libvlc_instance_t*
mediacontrol_get_libvlc_instance( mediacontrol_Instance *self )
{
return self->p_instance;
}
libvlc_media_player_t*
mediacontrol_get_media_player( mediacontrol_Instance *self )
{
return self->p_media_player;
}
mediacontrol_Instance *
mediacontrol_new_from_instance( libvlc_instance_t* p_instance,
mediacontrol_Exception *exception )
{
mediacontrol_Instance* retval;
libvlc_exception_t ex;
libvlc_exception_init( &ex );
retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
if( ! retval )
{
RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
}
retval->p_instance = p_instance;
retval->p_media_player = libvlc_media_player_new( retval->p_instance, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
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 )
{
mediacontrol_Position* retval = NULL;
libvlc_exception_t ex;
int64_t pos;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
retval->origin = an_origin;
retval->key = a_key;
if( an_origin != mediacontrol_AbsolutePosition )
{
free( retval );
/* Relative or ModuloPosition make no sense */
RAISE_NULL( mediacontrol_PositionOriginNotSupported,
"Only absolute position is valid." );
}
/* We are asked for an AbsolutePosition. */
pos = libvlc_media_player_get_time( self->p_media_player, &ex );
if( a_key == mediacontrol_MediaTime )
{
retval->value = pos;
}
else
{
retval->value = private_mediacontrol_unit_convert( self->p_media_player,
mediacontrol_MediaTime,
a_key,
pos );
}
return retval;
}
/* Sets the media position */
void
mediacontrol_set_media_position( mediacontrol_Instance *self,
const mediacontrol_Position * a_position,
mediacontrol_Exception *exception )
{
libvlc_exception_t ex;
int64_t i_pos;
libvlc_exception_init( &ex );
mediacontrol_exception_init( exception );
i_pos = private_mediacontrol_position2microsecond( self->p_media_player, a_position );
libvlc_media_player_set_time( self->p_media_player, i_pos / 1000, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
/* Starts playing a stream */
/*
* Known issues: since moving in the playlist using playlist_Next
* or playlist_Prev implies starting to play items, the a_position
* argument will be only honored for the 1st item in the list.
*
* XXX:FIXME split moving in the playlist and playing items two
* different actions or make playlist_<Next|Prev> accept a time
* value to start to play from.
*/
void
mediacontrol_start( mediacontrol_Instance *self,
const mediacontrol_Position * a_position,
mediacontrol_Exception *exception )
{
libvlc_media_t * p_media;
char * psz_name;
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
if ( ! p_media )
{
/* No media was defined. */
RAISE( mediacontrol_PlaylistException, "No defined media." );
}
else
{
/* A media was defined. Get its mrl to reuse it, but reset the options
(because start-time may have been set on the previous invocation */
psz_name = libvlc_media_get_mrl( p_media, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
/* Create a new media */
p_media = libvlc_media_new( self->p_instance, psz_name, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
if( a_position->value )
{
char * psz_from;
libvlc_time_t i_from;
/* A start position was specified. Add it to media options */
psz_from = ( char * )malloc( 20 * sizeof( char ) );
i_from = private_mediacontrol_position2microsecond( self->p_media_player, a_position ) / 1000000;
snprintf( psz_from, 20, "start-time=%"PRId64, i_from );
libvlc_media_add_option( p_media, psz_from, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
libvlc_media_player_set_media( self->p_media_player, p_media, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
libvlc_media_player_play( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
}
void
mediacontrol_pause( mediacontrol_Instance *self,
mediacontrol_Exception *exception )
{
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
libvlc_media_player_pause( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
void
mediacontrol_resume( mediacontrol_Instance *self,
mediacontrol_Exception *exception )
{
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
libvlc_media_player_pause( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
void
mediacontrol_stop( mediacontrol_Instance *self,
mediacontrol_Exception *exception )
{
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
libvlc_media_player_stop( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
/**************************************************************************
* File management
**************************************************************************/
void
mediacontrol_set_mrl( mediacontrol_Instance *self,
const char * psz_file,
mediacontrol_Exception *exception )
{
libvlc_media_t * p_media;
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
p_media = libvlc_media_new( self->p_instance, psz_file, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
libvlc_media_player_set_media( self->p_media_player, p_media, &ex );
HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
}
char *
mediacontrol_get_mrl( mediacontrol_Instance *self,
mediacontrol_Exception *exception )
{
libvlc_media_t * p_media;
libvlc_exception_t ex;
mediacontrol_exception_init( exception );
libvlc_exception_init( &ex );
p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
if ( ! p_media )
{
return strdup( "" );
}
else
{
char * psz_mrl;
psz_mrl = libvlc_media_get_mrl( p_media, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
return psz_mrl;
}
}
/***************************************************************************
* Status feedback
***************************************************************************/
mediacontrol_StreamInformation *
mediacontrol_get_stream_information( mediacontrol_Instance *self,
mediacontrol_PositionKey a_key,
mediacontrol_Exception *exception )
{
(void)a_key;
mediacontrol_StreamInformation *retval = NULL;
libvlc_media_t * p_media;
libvlc_exception_t ex;
libvlc_exception_init( &ex );
retval = ( mediacontrol_StreamInformation* )
malloc( sizeof( mediacontrol_StreamInformation ) );
if( ! retval )
{
RAISE( mediacontrol_InternalException, "Out of memory" );
return NULL;
}
p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
if( ! p_media )
{
/* No p_media defined */
retval->streamstatus = mediacontrol_UndefinedStatus;
retval->url = strdup( "" );
retval->position = 0;
retval->length = 0;
}
else
{
libvlc_state_t state;
state = libvlc_media_player_get_state( self->p_media_player, &ex );
HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
switch( state )
{
case libvlc_NothingSpecial:
retval->streamstatus = mediacontrol_UndefinedStatus;
break;
case libvlc_Opening :
retval->streamstatus = mediacontrol_InitStatus;
break;
case libvlc_Buffering:
retval->streamstatus = mediacontrol_BufferingStatus;
break;
case libvlc_Playing:
retval->streamstatus = mediacontrol_PlayingStatus;
break;
case libvlc_Paused:
retval->streamstatus = mediacontrol_PauseStatus;
break;
case libvlc_Stopped:
retval->streamstatus = mediacontrol_StopStatus;
break;
case libvlc_Forward:
retval->streamstatus = mediacontrol_ForwardStatus;
break;
case libvlc_Backward:
retval->streamstatus = mediacontrol_BackwardStatus;
break;
case libvlc_Ended:
retval->streamstatus = mediacontrol_EndStatus;
break;
case libvlc_Error:
retval->streamstatus = mediacontrol_ErrorStatus;
break;
default :
retval->streamstatus = mediacontrol_UndefinedStatus;
break;
}
retval->url = libvlc_media_get_mrl( p_media, &ex );
retval->position = libvlc_media_player_get_time( self->p_media_player, &ex );
if( libvlc_exception_raised( &ex ) )
{
libvlc_exception_clear( &ex );
retval->position = 0;
}
retval->length = libvlc_media_player_get_length( self->p_media_player, &ex );
if( libvlc_exception_raised( &ex ) )
{
libvlc_exception_clear( &ex );
retval->length = 0;
}
}
return retval;
}
