#ifndef FF_API_OLD_FILTER_OPTS
#define FF_API_OLD_FILTER_OPTS (LIBAVFILTER_VERSION_MAJOR < 6)
#endif
-#ifndef FF_API_ACONVERT_FILTER
-#define FF_API_ACONVERT_FILTER (LIBAVFILTER_VERSION_MAJOR < 5)
-#endif
#ifndef FF_API_AVFILTER_OPEN
#define FF_API_AVFILTER_OPEN (LIBAVFILTER_VERSION_MAJOR < 6)
#endif