You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
mlt/src/modules/avformat/factory.c

129 lines
3.1 KiB

/*
* factory.c -- the factory method interfaces
* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include <pthread.h>
#include <framework/mlt_factory.h>
#include "producer_avformat.h"
#include "consumer_avformat.h"
#include "filter_avcolour_space.h"
#include "filter_avdeinterlace.h"
#include "filter_avresample.h"
// ffmpeg Header files
#include <avformat.h>
// A static flag used to determine if avformat has been initialised
static int avformat_initialised = 0;
// A locking mutex
static pthread_mutex_t avformat_mutex;
#if 0
// These 3 functions should override the alloc functions in libavformat
// but some formats or codecs seem to crash when used (wmv in particular)
void *av_malloc( unsigned int size )
{
return mlt_pool_alloc( size );
}
void *av_realloc( void *ptr, unsigned int size )
{
return mlt_pool_realloc( ptr, size );
}
void av_free( void *ptr )
{
return mlt_pool_release( ptr );
}
#endif
void avformat_destroy( void *ignore )
{
// Clean up
// av_free_static( ); -XXX this is deprecated
// Destroy the mutex
pthread_mutex_destroy( &avformat_mutex );
}
void avformat_lock( )
{
// Lock the mutex now
pthread_mutex_lock( &avformat_mutex );
}
void avformat_unlock( )
{
// Unlock the mutex now
pthread_mutex_unlock( &avformat_mutex );
}
static void avformat_init( )
{
// Initialise avformat if necessary
if ( avformat_initialised == 0 )
{
avformat_initialised = 1;
pthread_mutex_init( &avformat_mutex, NULL );
av_register_all( );
mlt_factory_register_for_clean_up( NULL, avformat_destroy );
av_log_set_level( -1 );
}
}
void *mlt_create_producer( char *id, void *arg )
{
avformat_init( );
if ( !strcmp( id, "avformat" ) )
return producer_avformat_init( arg );
return NULL;
}
void *mlt_create_filter( char *id, void *arg )
{
avformat_init( );
if ( !strcmp( id, "avcolour_space" ) )
return filter_avcolour_space_init( arg );
#ifdef USE_MMX
if ( !strcmp( id, "avdeinterlace" ) )
return filter_avdeinterlace_init( arg );
#endif
if ( !strcmp( id, "avresample" ) )
return filter_avresample_init( arg );
return NULL;
}
void *mlt_create_transition( char *id, void *arg )
{
return NULL;
}
void *mlt_create_consumer( char *id, void *arg )
{
avformat_init( );
if ( !strcmp( id, "avformat" ) )
return consumer_avformat_init( arg );
return NULL;
}