+ : DCPReadError (
+ type == MAIN_PICTURE ? String::compose ("Missing asset %1 for main picture", path.string()) :
+ (type == MAIN_SOUND ? String::compose ("Missing asset %1 for main sound", path.string()) :
+ (type == MAIN_SUBTITLE ? String::compose ("Missing asset %1 for main subtitle", path.string()) :
+ String::compose ("Missing asset %1", path.string()))))