*/
static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int track );
-static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor this );
+static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor self );
/** Construct a tractor without a field or multitrack.
*
mlt_tractor mlt_tractor_init( )
{
- mlt_tractor this = calloc( sizeof( struct mlt_tractor_s ), 1 );
- if ( this != NULL )
+ mlt_tractor self = calloc( sizeof( struct mlt_tractor_s ), 1 );
+ if ( self != NULL )
{
- mlt_producer producer = &this->parent;
- if ( mlt_producer_init( producer, this ) == 0 )
+ mlt_producer producer = &self->parent;
+ if ( mlt_producer_init( producer, self ) == 0 )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )mlt_tractor_close;
- producer->close_object = this;
+ producer->close_object = self;
}
else
{
- free( this );
- this = NULL;
+ free( self );
+ self = NULL;
}
}
- return this;
+ return self;
}
/** Construct a tractor as well as a field and multitrack.
mlt_tractor mlt_tractor_new( )
{
- mlt_tractor this = calloc( sizeof( struct mlt_tractor_s ), 1 );
- if ( this != NULL )
+ mlt_tractor self = calloc( sizeof( struct mlt_tractor_s ), 1 );
+ if ( self != NULL )
{
- mlt_producer producer = &this->parent;
- if ( mlt_producer_init( producer, this ) == 0 )
+ mlt_producer producer = &self->parent;
+ if ( mlt_producer_init( producer, self ) == 0 )
{
mlt_multitrack multitrack = mlt_multitrack_init( );
- mlt_field field = mlt_field_new( multitrack, this );
+ mlt_field field = mlt_field_new( multitrack, self );
mlt_properties props = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_set( props, "resource", "<tractor>" );
mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL );
mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL );
- mlt_events_listen( MLT_MULTITRACK_PROPERTIES( multitrack ), this, "producer-changed", ( mlt_listener )mlt_tractor_listener );
+ mlt_events_listen( MLT_MULTITRACK_PROPERTIES( multitrack ), self, "producer-changed", ( mlt_listener )mlt_tractor_listener );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )mlt_tractor_close;
- producer->close_object = this;
+ producer->close_object = self;
}
else
{
- free( this );
- this = NULL;
+ free( self );
+ self = NULL;
}
}
- return this;
+ return self;
}
/** Get the service object associated to the tractor.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \return the parent service object
* \see MLT_TRACTOR_SERVICE
*/
-mlt_service mlt_tractor_service( mlt_tractor this )
+mlt_service mlt_tractor_service( mlt_tractor self )
{
- return MLT_PRODUCER_SERVICE( &this->parent );
+ return MLT_PRODUCER_SERVICE( &self->parent );
}
/** Get the producer object associated to the tractor.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \return the parent producer object
* \see MLT_TRACTOR_PRODUCER
*/
-mlt_producer mlt_tractor_producer( mlt_tractor this )
+mlt_producer mlt_tractor_producer( mlt_tractor self )
{
- return this != NULL ? &this->parent : NULL;
+ return self != NULL ? &self->parent : NULL;
}
/** Get the properties object associated to the tractor.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \return the tractor's property list
* \see MLT_TRACTOR_PROPERTIES
*/
-mlt_properties mlt_tractor_properties( mlt_tractor this )
+mlt_properties mlt_tractor_properties( mlt_tractor self )
{
- return MLT_PRODUCER_PROPERTIES( &this->parent );
+ return MLT_PRODUCER_PROPERTIES( &self->parent );
}
-/** Get the field this tractor is harvesting.
+/** Get the field self tractor is harvesting.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \return a field or NULL if there is no field for this tractor
*/
-mlt_field mlt_tractor_field( mlt_tractor this )
+mlt_field mlt_tractor_field( mlt_tractor self )
{
- return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( this ), "field", NULL );
+ return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( self ), "field", NULL );
}
-/** Get the multitrack this tractor is pulling.
+/** Get the multitrack a tractor is pulling.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \return a multitrack or NULL if there is none
*/
-mlt_multitrack mlt_tractor_multitrack( mlt_tractor this )
+mlt_multitrack mlt_tractor_multitrack( mlt_tractor self )
{
- return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( this ), "multitrack", NULL );
+ return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( self ), "multitrack", NULL );
}
/** Ensure the tractors in/out points match the multitrack.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
*/
-void mlt_tractor_refresh( mlt_tractor this )
+void mlt_tractor_refresh( mlt_tractor self )
{
- mlt_multitrack multitrack = mlt_tractor_multitrack( this );
- mlt_properties properties = MLT_MULTITRACK_PROPERTIES( multitrack );
- mlt_properties self = MLT_TRACTOR_PROPERTIES( this );
- mlt_events_block( properties, self );
- mlt_events_block( self, self );
+ mlt_multitrack multitrack = mlt_tractor_multitrack( self );
+ mlt_properties multitrack_props = MLT_MULTITRACK_PROPERTIES( multitrack );
+ mlt_properties properties = MLT_TRACTOR_PROPERTIES( self );
+ mlt_events_block( multitrack_props, properties );
+ mlt_events_block( properties, properties );
mlt_multitrack_refresh( multitrack );
- mlt_properties_set_position( self, "in", 0 );
- mlt_properties_set_position( self, "out", mlt_properties_get_position( properties, "out" ) );
- mlt_events_unblock( self, self );
- mlt_events_unblock( properties, self );
- mlt_properties_set_position( self, "length", mlt_properties_get_position( properties, "length" ) );
+ mlt_properties_set_position( properties, "in", 0 );
+ mlt_properties_set_position( properties, "out", mlt_properties_get_position( multitrack_props, "out" ) );
+ mlt_events_unblock( properties, properties );
+ mlt_events_unblock( multitrack_props, properties );
+ mlt_properties_set_position( properties, "length", mlt_properties_get_position( multitrack_props, "length" ) );
}
-static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor this )
+static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor self )
{
- mlt_tractor_refresh( this );
+ mlt_tractor_refresh( self );
}
/** Connect the tractor.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \param producer a producer
* \return true on error
*/
-int mlt_tractor_connect( mlt_tractor this, mlt_service producer )
+int mlt_tractor_connect( mlt_tractor self, mlt_service producer )
{
- int ret = mlt_service_connect_producer( MLT_TRACTOR_SERVICE( this ), producer, 0 );
+ int ret = mlt_service_connect_producer( MLT_TRACTOR_SERVICE( self ), producer, 0 );
// This is the producer we're going to connect to
if ( ret == 0 )
- this->producer = producer;
+ self->producer = producer;
return ret;
}
/** Set the producer for a specific track.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \param producer a producer
* \param index the 0-based track index
* \return true on error
*/
-int mlt_tractor_set_track( mlt_tractor this, mlt_producer producer, int index )
+int mlt_tractor_set_track( mlt_tractor self, mlt_producer producer, int index )
{
- return mlt_multitrack_connect( mlt_tractor_multitrack( this ), producer, index );
+ return mlt_multitrack_connect( mlt_tractor_multitrack( self ), producer, index );
}
/** Get the producer for a specific track.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
* \param index the 0-based track index
* \return the producer for track \p index
*/
-mlt_producer mlt_tractor_get_track( mlt_tractor this, int index )
+mlt_producer mlt_tractor_get_track( mlt_tractor self, int index )
{
- return mlt_multitrack_track( mlt_tractor_multitrack( this ), index );
+ return mlt_multitrack_track( mlt_tractor_multitrack( self ), index );
}
-static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
+static int producer_get_image( mlt_frame self, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
uint8_t *data = NULL;
int size = 0;
- mlt_properties properties = MLT_FRAME_PROPERTIES( this );
- mlt_frame frame = mlt_frame_pop_service( this );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( self );
+ mlt_frame frame = mlt_frame_pop_service( self );
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale.interp" ) );
mlt_properties_set_int( frame_properties, "resize_alpha", mlt_properties_get_int( properties, "resize_alpha" ) );
data = mlt_frame_get_alpha_mask( frame );
mlt_properties_get_data( frame_properties, "alpha", &size );
mlt_properties_set_data( properties, "alpha", data, size, NULL, NULL );
- this->convert_image = frame->convert_image;
- this->convert_audio = frame->convert_audio;
+ self->convert_image = frame->convert_image;
+ self->convert_audio = frame->convert_audio;
return 0;
}
-static int producer_get_audio( mlt_frame this, void **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
+static int producer_get_audio( mlt_frame self, void **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
{
- mlt_properties properties = MLT_FRAME_PROPERTIES( this );
- mlt_frame frame = mlt_frame_pop_audio( this );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( self );
+ mlt_frame frame = mlt_frame_pop_audio( self );
mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples );
mlt_properties_set_data( properties, "audio", *buffer, 0, NULL, NULL );
mlt_properties_set_int( properties, "frequency", *frequency );
static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int track )
{
- mlt_tractor this = parent->child;
+ mlt_tractor self = parent->child;
// We only respond to the first track requests
- if ( track == 0 && this->producer != NULL )
+ if ( track == 0 && self->producer != NULL )
{
int i = 0;
int done = 0;
for ( i = 0; !done; i ++ )
{
// Get a frame from the producer
- mlt_service_get_frame( this->producer, &temp, i );
+ mlt_service_get_frame( self->producer, &temp, i );
// Get the temporary properties
temp_properties = MLT_FRAME_PROPERTIES( temp );
{
mlt_producer_seek( producer, mlt_producer_frame( parent ) );
mlt_producer_set_speed( producer, mlt_producer_get_speed( parent ) );
- mlt_service_get_frame( this->producer, frame, track );
+ mlt_service_get_frame( self->producer, frame, track );
}
else
{
mlt_log( MLT_PRODUCER_SERVICE( parent ), MLT_LOG_ERROR, "tractor without a multitrack!!\n" );
- mlt_service_get_frame( this->producer, frame, track );
+ mlt_service_get_frame( self->producer, frame, track );
}
// Prepare the next frame
/** Close the tractor and free its resources.
*
* \public \memberof mlt_tractor_s
- * \param this a tractor
+ * \param self a tractor
*/
-void mlt_tractor_close( mlt_tractor this )
+void mlt_tractor_close( mlt_tractor self )
{
- if ( this != NULL && mlt_properties_dec_ref( MLT_TRACTOR_PROPERTIES( this ) ) <= 0 )
+ if ( self != NULL && mlt_properties_dec_ref( MLT_TRACTOR_PROPERTIES( self ) ) <= 0 )
{
- this->parent.close = NULL;
- mlt_producer_close( &this->parent );
- free( this );
+ self->parent.close = NULL;
+ mlt_producer_close( &self->parent );
+ free( self );
}
}
projects / mlt / blobdiff