Mutable watermark producer and small optimisation

[mlt] / src / modules / core / filter_watermark.c

diff --git a/src/modules/core/filter_watermark.c b/src/modules/core/filter_watermark.c
index 4f1c5be35646ae376a792a9a8b1ef0b4f303d78f..f23ac60bebddc46867cc97e09096d6746e0c4aef 100644 (file)
--- a/src/modules/core/filter_watermark.c
+++ b/src/modules/core/filter_watermark.c
@@ -27,6 +27,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 /** Do it :-).
 */
@@ -48,6 +49,12 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format
        // Get the composite from the filter
        mlt_transition composite = mlt_properties_get_data( properties, "composite", NULL );
 
+       // Get the resource to use
+       char *resource = mlt_properties_get( properties, "resource" );
+
+       // Get the old resource
+       char *old_resource = mlt_properties_get( properties, "old_resource" );
+
        // Create a composite if we don't have one
        if ( composite == NULL )
        {
@@ -70,11 +77,8 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format
        }
 
        // Create a producer if don't have one
-       if ( producer == NULL )
+       if ( producer == NULL || ( old_resource != NULL && strcmp( resource, old_resource ) ) )
        {
-               // Get the resource to use
-               char *resource = mlt_properties_get( properties, "resource" );
-
                // Get the factory producer service
                char *factory = mlt_properties_get( properties, "factory" );
 
@@ -89,6 +93,9 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format
 
                        // Ensure that we loop
                        mlt_properties_set( mlt_producer_properties( producer ), "eof", "loop" );
+
+                       // Set the old resource
+                       mlt_properties_set( properties, "old_resource", resource );
                }
        }