image-source: Add webp to file filter

plugins/image-source/image-source.c

@@ -218,6 +218,7 @@ static const char *image_filter =
 	"JPEG Files (*.jpeg *.jpg);;"
 	"GIF Files (*.gif);;"
 	"PSD Files (*.psd);;"
+	"WebP Files (*.webp);;"
 	"All Files (*.*)";
 
 static obs_properties_t *image_source_properties(void *data)

plugins/image-source/obs-slideshow.c

@@ -848,7 +848,7 @@ static void ss_defaults(obs_data_t *settings)
 }
 
 static const char *file_filter =
-	"Image files (*.bmp *.tga *.png *.jpeg *.jpg *.gif)";
+	"Image files (*.bmp *.tga *.png *.jpeg *.jpg *.gif *.webp)";
 
 static const char *aspects[] = {"16:9", "16:10", "4:3", "1:1"};