X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fmodules%2Fopengl%2Ftransition_movit_mix.cpp;h=3e7ef964879c59faab70fb477508e4bd591428db;hb=09923c8a08da705269f3b6c105fcbedd4d09ae67;hp=4adc810e9dc7f83cc14ec9b09e138699d16a66f6;hpb=ef7206c302e89aac5acaadda09c149838e6d9653;p=mlt

diff --git a/src/modules/opengl/transition_movit_mix.cpp b/src/modules/opengl/transition_movit_mix.cpp
index 4adc810e..3e7ef964 100644
--- a/src/modules/opengl/transition_movit_mix.cpp
+++ b/src/modules/opengl/transition_movit_mix.cpp
@@ -49,7 +49,8 @@ static int get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *form
 	mlt_position position = mlt_transition_get_position( transition, a_frame );
 	mlt_position length = mlt_transition_get_length( transition );
 	int reverse = mlt_properties_get_int( properties, "reverse" );
-	double mix = mlt_properties_get( properties, "mix" ) ?
+	const char* mix_str = mlt_properties_get( properties, "mix" );
+	double mix = ( mix_str && strlen( mix_str ) > 0 ) ?
 		mlt_properties_anim_get_double( properties, "mix", position, length ) :
 		mlt_transition_get_progress( transition, a_frame );
 	double inverse = 1.0 - mix;