X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_transition.c;h=435fdb6c62a94b863c53ff1c36623f172838b13f;hb=2d71618ab696a31fabfbc2265b2ad0d5cc9171b2;hp=9eb0c46d9df571e7dc24035d359df2ec82af41b3;hpb=1fd5d30c5326f73a3889e3bf4f377f96e551a6d1;p=melted

diff --git a/src/framework/mlt_transition.c b/src/framework/mlt_transition.c
index 9eb0c46..435fdb6 100644
--- a/src/framework/mlt_transition.c
+++ b/src/framework/mlt_transition.c
@@ -42,27 +42,39 @@ int mlt_transition_init( mlt_transition this, void *child )
 	this->child = child;
 	if ( mlt_service_init( service, this ) == 0 )
 	{
-		mlt_properties properties = mlt_transition_properties( this );
+		mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
 		service->get_frame = transition_get_frame;
+		service->close = ( mlt_destructor )mlt_transition_close;
+		service->close_object = this;
 
 		mlt_properties_set_position( properties, "in", 0 );
 		mlt_properties_set_position( properties, "out", 0 );
 		mlt_properties_set_int( properties, "a_track", 0 );
 		mlt_properties_set_int( properties, "b_track", 1 );
-		mlt_properties_set( properties, "resource", "<transition>" );
 
 		return 0;
 	}
 	return 1;
 }
 
+/** Create a new transition.
+*/
+
+mlt_transition mlt_transition_new( )
+{
+	mlt_transition this = calloc( 1, sizeof( struct mlt_transition_s ) );
+	if ( this != NULL )
+		mlt_transition_init( this, NULL );
+	return this;
+}
+
 /** Get the service associated to the transition.
 */
 
 mlt_service mlt_transition_service( mlt_transition this )
 {
-	return &this->parent;
+	return this != NULL ? &this->parent : NULL;
 }
 
 /** Get the properties interface.
@@ -70,7 +82,7 @@ mlt_service mlt_transition_service( mlt_transition this )
 
 mlt_properties mlt_transition_properties( mlt_transition this )
 {
-	return mlt_service_properties( mlt_transition_service( this ) );
+	return MLT_TRANSITION_PROPERTIES( this );
 }
 
 /** Connect this transition with a producers a and b tracks.
@@ -81,7 +93,7 @@ int mlt_transition_connect( mlt_transition this, mlt_service producer, int a_tra
 	int ret = mlt_service_connect_producer( &this->parent, producer, a_track );
 	if ( ret == 0 )
 	{
-		mlt_properties properties = mlt_transition_properties( this );
+		mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 		this->producer = producer;
 		mlt_properties_set_int( properties, "a_track", a_track );
 		mlt_properties_set_int( properties, "b_track", b_track );
@@ -94,7 +106,7 @@ int mlt_transition_connect( mlt_transition this, mlt_service producer, int a_tra
 
 void mlt_transition_set_in_and_out( mlt_transition this, mlt_position in, mlt_position out )
 {
-	mlt_properties properties = mlt_transition_properties( this );
+	mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 	mlt_properties_set_position( properties, "in", in );
 	mlt_properties_set_position( properties, "out", out );
 }
@@ -104,7 +116,7 @@ void mlt_transition_set_in_and_out( mlt_transition this, mlt_position in, mlt_po
 
 int mlt_transition_get_a_track( mlt_transition this )
 {
-	return mlt_properties_get_int( mlt_transition_properties( this ), "a_track" );
+	return mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "a_track" );
 }
 
 /** Get the index of the b track.
@@ -112,7 +124,7 @@ int mlt_transition_get_a_track( mlt_transition this )
 
 int mlt_transition_get_b_track( mlt_transition this )
 {
-	return mlt_properties_get_int( mlt_transition_properties( this ), "b_track" );
+	return mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "b_track" );
 }
 
 /** Get the in point.
@@ -120,7 +132,7 @@ int mlt_transition_get_b_track( mlt_transition this )
 
 mlt_position mlt_transition_get_in( mlt_transition this )
 {
-	return mlt_properties_get_position( mlt_transition_properties( this ), "in" );
+	return mlt_properties_get_position( MLT_TRANSITION_PROPERTIES( this ), "in" );
 }
 
 /** Get the out point.
@@ -128,7 +140,7 @@ mlt_position mlt_transition_get_in( mlt_transition this )
 
 mlt_position mlt_transition_get_out( mlt_transition this )
 {
-	return mlt_properties_get_position( mlt_transition_properties( this ), "out" );
+	return mlt_properties_get_position( MLT_TRANSITION_PROPERTIES( this ), "out" );
 }
 
 /** Process the frame.
@@ -136,7 +148,7 @@ mlt_position mlt_transition_get_out( mlt_transition this )
   	If we have no process method (unlikely), we simply return the a_frame unmolested.
 */
 
-static mlt_frame transition_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
+mlt_frame mlt_transition_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
 {
 	if ( this->process == NULL )
 		return a_frame;
@@ -163,14 +175,15 @@ static int transition_get_frame( mlt_service service, mlt_frame_ptr frame, int i
 {
 	mlt_transition this = service->child;
 
-	mlt_properties properties = mlt_transition_properties( this );
+	mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
+	int accepts_blanks = mlt_properties_get_int( properties, "_accepts_blanks" );
 	int a_track = mlt_properties_get_int( properties, "a_track" );
 	int b_track = mlt_properties_get_int( properties, "b_track" );
 	mlt_position in = mlt_properties_get_position( properties, "in" );
 	mlt_position out = mlt_properties_get_position( properties, "out" );
+	int always_active = mlt_properties_get_int( properties, "always_active" );
 
-	// Fetch a and b frames together...
 	if ( ( index == a_track || index == b_track ) && !( this->a_held || this->b_held ) )
 	{
 		mlt_service_get_frame( this->producer, &this->a_frame, a_track );
@@ -184,10 +197,29 @@ static int transition_get_frame( mlt_service service, mlt_frame_ptr frame, int i
 	{
 		// Determine if we're in the right time zone
 		mlt_position position = mlt_frame_get_position( this->a_frame );
-		if ( position >= in && position <= out )
+		if ( always_active || ( position >= in && position <= out ) )
 		{
-			// Process the transition
-			*frame = transition_process( this, this->a_frame, this->b_frame );
+			if ( !accepts_blanks && ( this->b_frame == NULL || ( mlt_frame_is_test_card( this->b_frame ) && mlt_frame_is_test_audio( this->b_frame ) ) ) )
+			{
+				*frame = this->a_frame;
+			}
+			else if ( !accepts_blanks && ( this->a_frame == NULL || ( mlt_frame_is_test_card( this->a_frame ) && mlt_frame_is_test_audio( this->a_frame ) ) ) )
+			{
+				mlt_frame t = this->a_frame;
+				this->a_frame = this->b_frame;
+				this->b_frame = t;
+				*frame = this->a_frame;
+			}
+			else
+			{
+				int hide = 0;
+				*frame = mlt_transition_process( this, this->a_frame, this->b_frame );
+				if ( !mlt_properties_get_int( MLT_FRAME_PROPERTIES( this->a_frame ), "test_image" ) )
+					hide = 1;
+				if ( !mlt_properties_get_int( MLT_FRAME_PROPERTIES( this->a_frame ), "test_audio" ) )
+					hide |= 2;
+				mlt_properties_set_int( MLT_FRAME_PROPERTIES( this->b_frame ), "hide", hide );
+			}
 			this->a_held = 0;
 		}
 		else
@@ -217,8 +249,17 @@ static int transition_get_frame( mlt_service service, mlt_frame_ptr frame, int i
 
 void mlt_transition_close( mlt_transition this )
 {
-	if ( this->close != NULL )
-		this->close( this );
-	else
-		mlt_service_close( &this->parent );
+	if ( this != NULL && mlt_properties_dec_ref( MLT_TRANSITION_PROPERTIES( this ) ) <= 0 )
+	{
+		this->parent.close = NULL;
+		if ( this->close != NULL )
+		{
+			this->close( this );
+		}
+		else
+		{
+			mlt_service_close( &this->parent );
+			free( this );
+		}
+	}
 }