EXT_INFINITY       54 libavfilter/dualinput.c     in[0].after  = EXT_INFINITY;
EXT_INFINITY       57 libavfilter/dualinput.c     in[1].after  = EXT_INFINITY;
EXT_INFINITY      144 libavfilter/framesync.c                 (fs->in[i].before == EXT_INFINITY &&
EXT_INFINITY      187 libavfilter/framesync.c         pts = fs->in[in].state != STATE_RUN || fs->in[in].after == EXT_INFINITY