#include <stdlib.h>
#include <string.h>
-static int filter_get_frame( mlt_service this, mlt_frame_ptr frame, int index );
+static int filter_get_frame( mlt_service self, mlt_frame_ptr frame, int index );
/** Initialize a new filter.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \param child the object of a subclass
* \return true if there was an error
*/
-int mlt_filter_init( mlt_filter this, void *child )
+int mlt_filter_init( mlt_filter self, void *child )
{
- mlt_service service = &this->parent;
- memset( this, 0, sizeof( struct mlt_filter_s ) );
- this->child = child;
- if ( mlt_service_init( service, this ) == 0 )
+ mlt_service service = &self->parent;
+ memset( self, 0, sizeof( struct mlt_filter_s ) );
+ self->child = child;
+ if ( mlt_service_init( service, self ) == 0 )
{
mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
// Define the destructor
service->close = ( mlt_destructor )mlt_filter_close;
- service->close_object = this;
+ service->close_object = self;
// Default in, out, track properties
mlt_properties_set_position( properties, "in", 0 );
mlt_filter mlt_filter_new( )
{
- mlt_filter this = calloc( 1, sizeof( struct mlt_filter_s ) );
- if ( this != NULL )
- mlt_filter_init( this, NULL );
- return this;
+ mlt_filter self = calloc( 1, sizeof( struct mlt_filter_s ) );
+ if ( self != NULL )
+ mlt_filter_init( self, NULL );
+ return self;
}
/** Get the service class interface.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \return the service parent class
* \see MLT_FILTER_SERVICE
*/
-mlt_service mlt_filter_service( mlt_filter this )
+mlt_service mlt_filter_service( mlt_filter self )
{
- return this != NULL ? &this->parent : NULL;
+ return self != NULL ? &self->parent : NULL;
}
/** Get the filter properties.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \return the properties list for the filter
* \see MLT_FILTER_PROPERTIES
*/
-mlt_properties mlt_filter_properties( mlt_filter this )
+mlt_properties mlt_filter_properties( mlt_filter self )
{
- return MLT_SERVICE_PROPERTIES( MLT_FILTER_SERVICE( this ) );
+ return MLT_SERVICE_PROPERTIES( MLT_FILTER_SERVICE( self ) );
}
/** Connect this filter to a producers track. Note that a filter only operates
* on a single track, and by default it operates on the entirety of that track.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \param producer the producer to which to connect this filter
* \param index which of potentially multiple producers to this service (0 based)
*/
-int mlt_filter_connect( mlt_filter this, mlt_service producer, int index )
+int mlt_filter_connect( mlt_filter self, mlt_service producer, int index )
{
- int ret = mlt_service_connect_producer( &this->parent, producer, index );
+ int ret = mlt_service_connect_producer( &self->parent, producer, index );
// If the connection was successful, grab the producer, track and reset in/out
if ( ret == 0 )
{
- mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
mlt_properties_set_position( properties, "in", 0 );
mlt_properties_set_position( properties, "out", 0 );
mlt_properties_set_int( properties, "track", index );
/** Set the starting and ending time.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \param in the time relative to the producer at which start applying the filter
* \param out the time relative to the producer at which to stop applying the filter
*/
-void mlt_filter_set_in_and_out( mlt_filter this, mlt_position in, mlt_position out )
+void mlt_filter_set_in_and_out( mlt_filter self, mlt_position in, mlt_position out )
{
- mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
mlt_properties_set_position( properties, "in", in );
mlt_properties_set_position( properties, "out", out );
}
/** Return the track that this filter is operating on.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \return true on error
*/
-int mlt_filter_get_track( mlt_filter this )
+int mlt_filter_get_track( mlt_filter self )
{
- mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
return mlt_properties_get_int( properties, "track" );
}
/** Get the in point.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \return the start time for the filter relative to the producer
*/
-mlt_position mlt_filter_get_in( mlt_filter this )
+mlt_position mlt_filter_get_in( mlt_filter self )
{
- mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
return mlt_properties_get_position( properties, "in" );
}
/** Get the out point.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \return the ending time for the filter relative to the producer
*/
-mlt_position mlt_filter_get_out( mlt_filter this )
+mlt_position mlt_filter_get_out( mlt_filter self )
{
- mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
return mlt_properties_get_position( properties, "out" );
}
/** Process the frame.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
* \param frame a frame
* \return a frame
*/
-mlt_frame mlt_filter_process( mlt_filter this, mlt_frame frame )
+mlt_frame mlt_filter_process( mlt_filter self, mlt_frame frame )
{
- int disable = mlt_properties_get_int( MLT_FILTER_PROPERTIES( this ), "disable" );
- if ( disable || this->process == NULL )
+ int disable = mlt_properties_get_int( MLT_FILTER_PROPERTIES( self ), "disable" );
+ if ( disable || self->process == NULL )
return frame;
else
- return this->process( this, frame );
+ return self->process( self, frame );
}
/** Get a frame from this filter.
static int filter_get_frame( mlt_service service, mlt_frame_ptr frame, int index )
{
- mlt_filter this = service->child;
+ mlt_filter self = service->child;
// Get coords in/out/track
- int track = mlt_filter_get_track( this );
- int in = mlt_filter_get_in( this );
- int out = mlt_filter_get_out( this );
+ int track = mlt_filter_get_track( self );
+ int in = mlt_filter_get_in( self );
+ int out = mlt_filter_get_out( self );
// Get the producer this is connected to
- mlt_service producer = mlt_service_producer( &this->parent );
+ mlt_service producer = mlt_service_producer( &self->parent );
// If the frame request is for this filters track, we need to process it
if ( index == track || track == -1 )
{
mlt_position position = mlt_frame_get_position( *frame );
if ( position >= in && ( out == 0 || position <= out ) )
- *frame = mlt_filter_process( this, *frame );
+ *frame = mlt_filter_process( self, *frame );
return 0;
}
else
/** Close and destroy the filter.
*
* \public \memberof mlt_filter_s
- * \param this a filter
+ * \param self a filter
*/
-void mlt_filter_close( mlt_filter this )
+void mlt_filter_close( mlt_filter self )
{
- if ( this != NULL && mlt_properties_dec_ref( MLT_FILTER_PROPERTIES( this ) ) <= 0 )
+ if ( self != NULL && mlt_properties_dec_ref( MLT_FILTER_PROPERTIES( self ) ) <= 0 )
{
- if ( this->close != NULL )
+ if ( self->close != NULL )
{
- this->close( this );
+ self->close( self );
}
else
{
- this->parent.close = NULL;
- mlt_service_close( &this->parent );
+ self->parent.close = NULL;
+ mlt_service_close( &self->parent );
}
- free( this );
+ free( self );
}
}
projects / mlt / blobdiff