From: lilo_booter <lilo_booter@d19143bc-622f-0410-bfdd-b5b2a6649095>
Date: Sun, 26 Jun 2005 20:38:10 +0000 (+0000)
Subject: CUSTOMISING
X-Git-Url: http://research.m1stereo.tv/gitweb?a=commitdiff_plain;h=6468e1ff9f9e9aeed0aa9eadb0a0491cd994b979;p=melted

CUSTOMISING
+ Added an example of how to hide a track on reception

swig/ruby/thumbs.rb
+ Changed generator to run, rather than sleep and poll


git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt++@741 d19143bc-622f-0410-bfdd-b5b2a6649095
---

diff --git a/mlt++/CUSTOMISING b/mlt++/CUSTOMISING
index 1fc4f2c..30d11a8 100644
--- a/mlt++/CUSTOMISING
+++ b/mlt++/CUSTOMISING
@@ -320,7 +320,33 @@ OTHER MANIPULATIONS
 	manipulated in the push method - for example, to remove a track from the 
 	output, we could do something like:
 
-	TBD
+		Response *push( char *command, Service *service )
+		{
+			Playlist playlist( ( mlt_playlist )( unit( 0 )->get_data( "playlist" ) ) );
+			Tractor *tractor( *service );
+			if ( tractor.is_valid( ) && playlist.is_valid( ) )
+			{
+				// Remove track 2 (NB: tracks are indexed from 0 like everything else)
+				Producer *producer = tractor.track( 2 );
+				Playlist track( producer );
+
+				// If we have a valid track then hide video and audio
+				// This is a bit pattern - 1 is video, 2 is audio
+				if ( track.is_valid( ) )
+					track.set( "hide", 3 );
+
+				// You need to delete the reference to the playlist producer here
+				delete producer;
+
+				// Play it
+				playlist.lock( );
+				playlist.clear( );
+				playlist.append( producer );
+				playlist.unlock( );
+				return new Response( 200, "OK" );
+			}
+			return new Response( 400, "Invalid" );
+		}
 
 
 EVENT HANDLING
diff --git a/mlt++/swig/ruby/thumbs.rb b/mlt++/swig/ruby/thumbs.rb
index 0d0f9a4..9e28782 100755
--- a/mlt++/swig/ruby/thumbs.rb
+++ b/mlt++/swig/ruby/thumbs.rb
@@ -34,10 +34,5 @@ generator.set( "size", size )
 
 # Connect the consumer
 generator.connect( playlist );
-generator.start
-
-# Wait until we're done
-while !generator.is_stopped 
-	sleep 1
-end
+generator.run