remove FFDECSA code

- the code is almost unmaintained and horrible
- no proper support for ARM CPUs
- it is not much optimized for the current TVH's code

Makefile

@@ -2,7 +2,7 @@
 #  Tvheadend streaming server.
 #  Copyright (C) 2007-2009 Andreas Öman
 #  Copyright (C) 2012-2015 Adam Sutton
-#  Copyright (C) 2012-2017 Jaroslav Kysela
+#  Copyright (C) 2012-2018 Jaroslav Kysela
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -603,22 +603,6 @@ SRCS-TSDEBUG = \
 SRCS-${CONFIG_TSDEBUG} += $(SRCS-TSDEBUG)
 I18N-C += $(SRCS-TSDEBUG)
 
-# FFdecsa
-ifneq ($(CONFIG_DVBCSA),yes)
-FFDECSA-$(CONFIG_CAPMT)   = yes
-FFDECSA-$(CONFIG_CWC)     = yes
-FFDECSA-$(CONFIG_CONSTCW) = yes
-endif
-
-ifeq ($(FFDECSA-yes),yes)
-SRCS-yes += src/descrambler/ffdecsa/ffdecsa_interface.c \
-	src/descrambler/ffdecsa/ffdecsa_int.c
-SRCS-${CONFIG_MMX}  += src/descrambler/ffdecsa/ffdecsa_mmx.c
-SRCS-${CONFIG_SSE2} += src/descrambler/ffdecsa/ffdecsa_sse2.c
-${BUILDDIR}/src/descrambler/ffdecsa/ffdecsa_mmx.o  : CFLAGS += -mmmx
-${BUILDDIR}/src/descrambler/ffdecsa/ffdecsa_sse2.o : CFLAGS += -msse2
-endif
-
 # crypto algorithms
 SRCS-${CONFIG_SSL} += src/descrambler/algo/libaesdec.c
 SRCS-${CONFIG_SSL} += src/descrambler/algo/libaes128dec.c

configure

@@ -66,7 +66,6 @@ OPTIONS=(
   "tvhcsa:auto"
   "bundle:no"
   "pngquant:no"
-  "dvbcsa:no"
   "kqueue:no"
   "dbus_1:auto"
   "android:no"
@@ -648,10 +647,11 @@ fi
 #
 if enabled cwc || enabled cccam || enabled capmt || enabled constcw; then
   enable tvhcsa
+  enable dvbcsa
   if enabled dvbcsa; then
     (check_cc_header "dvbcsa/dvbcsa" dvbcsa_h &&\
      check_cc_lib    dvbcsa dvbcsa_l) ||\
-    die "Failed to find dvbcsa support (use --disable-dvbcsa)"
+    die "Failed to find dvbcsa library"
     LDFLAGS="$LDFLAGS -ldvbcsa"
   fi
 fi