CTX_NP_F2          74 libavcodec/dirac_arith.c     [CTX_NPZN_F1]   = CTX_NP_F2,
CTX_NP_F2          75 libavcodec/dirac_arith.c     [CTX_NPNN_F1]   = CTX_NP_F2,
CTX_NP_F2          76 libavcodec/dirac_arith.c     [CTX_NP_F2]     = CTX_NP_F3,