Added interpolateframe

Author: Tiziano Bacocco

configure

@@ -2683,6 +2683,7 @@ cover_rect_filter_deps="avcodec avformat gpl"
 cropdetect_filter_deps="gpl"
 delogo_filter_deps="gpl"
 deshake_filter_select="pixelutils"
+intepolateframes_filter_select="pixelutils"
 drawtext_filter_deps="libfreetype"
 ebur128_filter_deps="gpl"
 eq_filter_deps="gpl"

libavfilter/Makefile

@@ -220,6 +220,7 @@ OBJS-$(CONFIG_XBR_FILTER)                    += vf_xbr.o
 OBJS-$(CONFIG_YADIF_FILTER)                  += vf_yadif.o
 OBJS-$(CONFIG_ZMQ_FILTER)                    += f_zmq.o
 OBJS-$(CONFIG_ZOOMPAN_FILTER)                += vf_zoompan.o
+OBJS-$(CONFIG_FRAMEINTERP_FILTER)             += vf_interpolateframes.o
 
 OBJS-$(CONFIG_CELLAUTO_FILTER)               += vsrc_cellauto.o
 OBJS-$(CONFIG_COLOR_FILTER)                  += vsrc_testsrc.o

libavfilter/allfilters.c

@@ -147,6 +147,7 @@ void avfilter_register_all(void)
     REGISTER_FILTER(FIND_RECT,      find_rect,      vf);
     REGISTER_FILTER(FORMAT,         format,         vf);
     REGISTER_FILTER(FPS,            fps,            vf);
+    REGISTER_FILTER(FRAMEINTERP,    frameinterp,    vf);
     REGISTER_FILTER(FRAMEPACK,      framepack,      vf);
     REGISTER_FILTER(FRAMESTEP,      framestep,      vf);
     REGISTER_FILTER(FREI0R,         frei0r,         vf);