From: ddennedy <ddennedy@d19143bc-622f-0410-bfdd-b5b2a6649095>
Date: Wed, 4 Jun 2008 08:16:54 +0000 (+0000)
Subject: mlt_playlist.c: added an "autoclose" property for sequential processing of very large... 
X-Git-Url: http://research.m1stereo.tv/gitweb?a=commitdiff_plain;h=467f981c523481500c5df1a12c4cf6f586c11ace;hp=ae6bde093802eb711b3f54c3f20e93d03fd04bed;p=melted

mlt_playlist.c: added an "autoclose" property for sequential processing of very large playlists. If set, it automatically closes previous producers to reduce resources (file handles and threads if using producer_avformat with threads).

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@1134 d19143bc-622f-0410-bfdd-b5b2a6649095
---

diff --git a/src/framework/mlt_playlist.c b/src/framework/mlt_playlist.c
index e2adc63..4183506 100644
--- a/src/framework/mlt_playlist.c
+++ b/src/framework/mlt_playlist.c
@@ -333,6 +333,36 @@ static mlt_service mlt_playlist_virtual_seek( mlt_playlist this, int *progressiv
 	// Get the properties
 	mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
 
+	// Automatically close previous producers if requested
+	if ( i > 1 // keep immediate previous in case app wants to get info about what just finished
+		&& position < 2 // tolerate off-by-one error on going to next clip
+		&& mlt_properties_get_int( properties, "autoclose" ) )
+	{
+		int j;
+		// They might have jumped ahead!
+		for ( j = 0; j < i - 1; j++ )
+		{
+			mlt_service_lock( MLT_PRODUCER_SERVICE( this->list[ j ]->producer ) );
+			mlt_producer p = this->list[ j ]->producer;
+			if ( p )
+			{
+				mlt_properties p_properties = MLT_PRODUCER_PROPERTIES( p );
+				// Prevent closing previously autoclosed to maintain integrity of references
+				if ( ! mlt_properties_get_int( p_properties, "_autoclosed" ) )
+				{
+					mlt_properties_set_int( p_properties, "_autoclosed", 1 );
+					mlt_service_unlock( MLT_PRODUCER_SERVICE( p ) );
+					mlt_producer_close( p );
+					this->list[ j ]->producer = NULL;
+				}
+				else
+				{
+					mlt_service_unlock( MLT_PRODUCER_SERVICE( p ) );
+				}
+			}
+		}
+	}
+
 	// Get the eof handling
 	char *eof = mlt_properties_get( properties, "eof" );