static void attach_normalisers( mlt_profile profile, mlt_producer producer )
{
// Loop variable
int i;
// Tokeniser
mlt_tokeniser tokeniser = mlt_tokeniser_init( );
// We only need to load the normalising properties once
if ( normalisers == NULL )
{
char temp[ 1024 ];
sprintf( temp, "%s/core/loader.ini", mlt_environment( "MLT_DATA" ) );
normalisers = mlt_properties_load( temp );
mlt_factory_register_for_clean_up( normalisers, ( mlt_destructor )mlt_properties_close );
}
// Apply normalisers
for ( i = 0; i < mlt_properties_count( normalisers ); i ++ )
{
int j = 0;
int created = 0;
char *value = mlt_properties_get_value( normalisers, i );
mlt_tokeniser_parse_new( tokeniser, value, "," );
for ( j = 0; !created && j < mlt_tokeniser_count( tokeniser ); j ++ )
create_filter( profile, producer, mlt_tokeniser_get_string( tokeniser, j ), &created );
}
// Close the tokeniser
mlt_tokeniser_close( tokeniser );
}
dv_decoder_t *dv_decoder_alloc( )
{
// We'll return a dv_decoder
dv_decoder_t *this = NULL;
// Lock the mutex
pthread_mutex_lock( &decoder_lock );
// Create the properties if necessary
if ( dv_decoders == NULL )
{
// Create the properties
dv_decoders = mlt_properties_new( );
// Create the stack
mlt_properties_set_data( dv_decoders, "stack", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
// Register the properties for clean up
mlt_factory_register_for_clean_up( dv_decoders, ( mlt_destructor )mlt_properties_close );
}
// Now try to obtain a decoder
if ( dv_decoders != NULL )
{
// Obtain the stack
mlt_deque stack = mlt_properties_get_data( dv_decoders, "stack", NULL );
// Pop the top of the stack
this = mlt_deque_pop_back( stack );
// Create a new decoder if none available
if ( this == NULL )
{
// We'll need a unique property ID for this
char label[ 256 ];
// Configure the decoder
this = dv_decoder_new( FALSE, FALSE, FALSE );
this->quality = DV_QUALITY_COLOR | DV_QUALITY_AC_2;
this->audio->arg_audio_emphasis = 2;
dv_set_audio_correction( this, DV_AUDIO_CORRECT_AVERAGE );
dv_set_error_log( this, NULL );
// Register it with the properties to ensure clean up
sprintf( label, "%p", this );
mlt_properties_set_data( dv_decoders, label, this, 0, ( mlt_destructor )dv_decoder_free, NULL );
}
}
// Unlock the mutex
pthread_mutex_unlock( &decoder_lock );
return this;
}
static mlt_slices mlt_slices_get_global( mlt_schedule_policy policy )
{
pthread_mutex_lock( &g_lock );
if ( !globals[policy] )
{
int posix_policy;
switch (policy) {
case mlt_policy_rr:
posix_policy = SCHED_RR;
break;
case mlt_policy_fifo:
posix_policy = SCHED_FIFO;
break;
default:
posix_policy = SCHED_OTHER;
}
globals[policy] = mlt_slices_init( 0, posix_policy, -1 );
mlt_factory_register_for_clean_up( globals[policy], (mlt_destructor) mlt_slices_close );
}
pthread_mutex_unlock( &g_lock );
return globals[policy];
}
static void avformat_init( )
{
// Initialise avformat if necessary
if ( avformat_initialised == 0 )
{
avformat_initialised = 1;
av_lockmgr_register( &avformat_lockmgr );
mlt_factory_register_for_clean_up( &avformat_lockmgr, unregister_lockmgr );
av_register_all( );
#ifdef AVDEVICE
avdevice_register_all();
#endif
#if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(13<<8))
avformat_network_init();
#endif
av_log_set_level( mlt_log_get_level() );
if ( getenv("MLT_AVFORMAT_PRODUCER_CACHE") )
{
int n = atoi( getenv("MLT_AVFORMAT_PRODUCER_CACHE" ) );
mlt_service_cache_set_size( NULL, "producer_avformat", n );
}
}
}
static mlt_producer create_producer( mlt_profile profile, char *file )
{
mlt_producer result = NULL;
// 1st Line - check for service:resource handling
if ( strchr( file, ':' ) )
{
char *temp = strdup( file );
char *service = temp;
char *resource = strchr( temp, ':' );
*resource ++ = '\0';
result = mlt_factory_producer( profile, service, resource );
free( temp );
}
// 2nd Line preferences
if ( result == NULL )
{
int i = 0;
char *lookup = strdup( file );
char *p = lookup;
// Make backup of profile for determining if we need to use 'consumer' producer.
mlt_profile backup_profile = mlt_profile_clone( profile );
// We only need to load the dictionary once
if ( dictionary == NULL )
{
char temp[ 1024 ];
sprintf( temp, "%s/core/loader.dict", mlt_environment( "MLT_DATA" ) );
dictionary = mlt_properties_load( temp );
mlt_factory_register_for_clean_up( dictionary, ( mlt_destructor )mlt_properties_close );
}
// Convert the lookup string to lower case
while ( *p )
{
*p = tolower( *p );
p ++;
}
// Iterate through the dictionary
for ( i = 0; result == NULL && i < mlt_properties_count( dictionary ); i ++ )
{
char *name = mlt_properties_get_name( dictionary, i );
if ( fnmatch( name, lookup, 0 ) == 0 )
result = create_from( profile, file, mlt_properties_get_value( dictionary, i ) );
}
// Check if the producer changed the profile - xml does this.
// The consumer producer does not handle frame rate differences.
if ( result && backup_profile->is_explicit && (
profile->width != backup_profile->width ||
profile->height != backup_profile->height ||
profile->sample_aspect_num != backup_profile->sample_aspect_num ||
profile->sample_aspect_den != backup_profile->sample_aspect_den ||
profile->colorspace != backup_profile->colorspace ) )
{
// Restore the original profile attributes.
profile->display_aspect_den = backup_profile->display_aspect_den;
profile->display_aspect_num = backup_profile->display_aspect_num;
profile->frame_rate_den = backup_profile->frame_rate_den;
profile->frame_rate_num = backup_profile->frame_rate_num;
profile->height = backup_profile->height;
profile->progressive = backup_profile->progressive;
profile->sample_aspect_den = backup_profile->sample_aspect_den;
profile->sample_aspect_num = backup_profile->sample_aspect_num;
profile->width = backup_profile->width;
// Use the 'consumer' producer.
mlt_producer_close( result );
result = mlt_factory_producer( profile, "consumer", file );
}
mlt_profile_close( backup_profile );
free( lookup );
}
// Finally, try just loading as service
if ( result == NULL )
result = mlt_factory_producer( profile, file, NULL );
return result;
}
