-################################################################################
-# vlc (VideoLAN Client) main makefile
-# (c)1998 VideoLAN
-################################################################################
-# This makefile is the main makefile for the VideoLAN client.
-################################################################################
-
-################################################################################
-# Configuration
-################################################################################
-
-# Environment
-#CC = gcc
-#SHELL = /bin/sh
-
-# Video output settings
-VIDEO=X11
-#VIDEO=DGA (not yet supported)
-#VIDEO=FB
-#VIDEO=GGI
-#VIDEO=BEOS (not yet supported)
-
-# Target architecture and optimization
-#ARCH=
-ARCH=MMX
-#ARCH=PPC
-#ARCH=SPARC
-
-# Decoder choice - ?? old decoder will be removed soon
-#DECODER=old
-DECODER=new
-# !!! don't forget to run this command after changing decoder type !!!
-# touch input/input.c input/input_ctrl.c include/vlc.h include/video_decoder.h
-
-#----------------- do not change anything below this line ----------------------
-
-################################################################################
-# Configuration pre-processing
-################################################################################
-
-# DEFINE will contain all the constants definitions decided in Makefile
-DEFINE = -DVIDEO_$(VIDEO)
-
-# video is a lowercase version of VIDEO used for filenames
-video = $(shell echo $(VIDEO) | tr 'A-Z' 'a-z')
-
-################################################################################
-# Tunning and other variables
-################################################################################
+###############################################################################
+# vlc (VideoLAN Client) main Makefile - (c)1998 VideoLAN
+###############################################################################
-#
-# Transformation for video decompression (Fourier or cosine)
-#
-TRANSFORM=vdec_idct
-#TRANSFORM=vdec_idft
+-include Makefile.opts
-#
-# C headers directories
-#
-INCLUDE += -Iinclude
+###############################################################################
+# Objects and files
+###############################################################################
-ifeq ($(VIDEO),X11)
-INCLUDE += -I/usr/X11R6/include
-endif
+#
+# All possible plugin directories, needed for make clean
+#
+PLUGINS_DIR := alsa beos darwin dsp dummy \
+ dvd esd fb ggi glide gnome gtk \
+ idct \
+ macosx mga \
+ motion \
+ mpeg null qt sdl \
+ text x11 yuv
#
-# Libraries
+# All possible plugin objects
#
-LIB += -lpthread
-LIB += -lm
-
-ifeq ($(VIDEO),X11)
-LIB += -L/usr/X11R6/lib
-LIB += -lX11
-LIB += -lXext
-endif
-ifeq ($(VIDEO),GGI)
-LIB += -lggi
-endif
+PLUGINS_TARGETS := alsa/alsa beos/beos darwin/darwin dsp/dsp dummy/dummy \
+ dvd/dvd esd/esd fb/fb ggi/ggi glide/glide gnome/gnome gtk/gtk \
+ idct/idct idct/idctclassic idct/idctmmx idct/idctmmxext \
+ macosx/macosx mga/mga \
+ motion/motion motion/motionmmx motion/motionmmxext \
+ mpeg/ps mpeg/ts null/null qt/qt sdl/sdl \
+ text/text x11/x11 x11/xvideo yuv/yuv yuv/yuvmmx
-# System dependant libraries
-#??LIB += -lXxf86dga
-
-#
-# C compiler flags: compilation
#
-CCFLAGS += $(DEFINE) $(INCLUDE)
-CCFLAGS += -Wall
-CCFLAGS += -D_REENTRANT
-CCFLAGS += -D_GNU_SOURCE
-
-# Optimizations : don't compile debug versions with them
-#CCFLAGS += -g
-CCFLAGS += -O6
-CCFLAGS += -ffast-math -funroll-loops -fargument-noalias-global
-CCFLAGS += -fomit-frame-pointer
-
-# Optimizations for x86 familiy, without MMX
-ifeq ($(ARCH),)
-CCFLAGS += -malign-double
-CCFLAGS += -march=pentiumpro
-#CCFLAGS += -march=pentium
-endif
+# C Objects
+#
+INTERFACE = src/interface/main.o \
+ src/interface/interface.o \
+ src/interface/intf_msg.o \
+ src/interface/intf_cmd.o \
+ src/interface/intf_ctrl.o \
+ src/interface/intf_playlist.o \
+ src/interface/intf_channels.o \
+ src/interface/intf_console.o \
+ src/interface/intf_urldecode.o \
+
+INPUT = src/input/input_ext-dec.o \
+ src/input/input_ext-intf.o \
+ src/input/input_dec.o \
+ src/input/input_programs.o \
+ src/input/input_netlist.o \
+ src/input/input_clock.o \
+ src/input/input.o \
+ src/input/mpeg_system.o
+
+AUDIO_OUTPUT = src/audio_output/audio_output.o \
+ src/audio_output/aout_fifo.o \
+ src/audio_output/aout_u8.o \
+ src/audio_output/aout_s8.o \
+ src/audio_output/aout_u16.o \
+ src/audio_output/aout_s16.o
+
+VIDEO_OUTPUT = src/video_output/video_output.o \
+ src/video_output/video_text.o \
+ src/video_output/video_spu.o \
+ src/video_output/video_yuv.o
+
+AC3_DECODER = src/ac3_decoder/ac3_decoder_thread.o \
+ src/ac3_decoder/ac3_decoder.o \
+ src/ac3_decoder/ac3_parse.o \
+ src/ac3_decoder/ac3_exponent.o \
+ src/ac3_decoder/ac3_bit_allocate.o \
+ src/ac3_decoder/ac3_mantissa.o \
+ src/ac3_decoder/ac3_rematrix.o \
+ src/ac3_decoder/ac3_imdct.o \
+ src/ac3_decoder/ac3_downmix.o \
+ src/ac3_decoder/ac3_downmix_c.o
+
+LPCM_DECODER = src/lpcm_decoder/lpcm_decoder_thread.o \
+ src/lpcm_decoder/lpcm_decoder.o
+
+AUDIO_DECODER = src/audio_decoder/audio_decoder.o \
+ src/audio_decoder/adec_generic.o \
+ src/audio_decoder/adec_layer1.o \
+ src/audio_decoder/adec_layer2.o \
+ src/audio_decoder/adec_math.o
+
+SPU_DECODER = src/spu_decoder/spu_decoder.o
+
+#GEN_DECODER = src/generic_decoder/generic_decoder.o
+
+VIDEO_PARSER = src/video_parser/video_parser.o \
+ src/video_parser/vpar_headers.o \
+ src/video_parser/vpar_blocks.o \
+ src/video_parser/vpar_synchro.o \
+ src/video_parser/video_fifo.o
+
+VIDEO_DECODER = src/video_decoder/video_decoder.o
+
+MISC = src/misc/mtime.o \
+ src/misc/tests.o \
+ src/misc/rsc_files.o \
+ src/misc/modules.o \
+ src/misc/netutils.o
+
+C_OBJ = $(INTERFACE) \
+ $(INPUT) \
+ $(VIDEO_OUTPUT) \
+ $(AUDIO_OUTPUT) \
+ $(AC3_DECODER) \
+ $(LPCM_DECODER) \
+ $(AUDIO_DECODER) \
+ $(SPU_DECODER) \
+ $(GEN_DECODER) \
+ $(VIDEO_PARSER) \
+ $(VIDEO_DECODER) \
+ $(MISC)
-# Optimization for x86 with MMX support
-ifeq ($(ARCH),MMX)
-CCFLAGS += -malign-double
-CCFLAGS += -march=pentiumpro
+#
+# Misc Objects
+#
+ifeq ($(GETOPT),1)
+C_OBJ += extras/GNUgetopt/getopt.o extras/GNUgetopt/getopt1.o
endif
-# Optimizations for PowerPC
-ifeq ($(ARCH),PPC)
-CCFLAGS += -mcpu=604e -mmultiple -mhard-float -mstring
+ifeq ($(SYS),beos)
+CPP_OBJ = src/misc/beos_specific.o
endif
-# Optimizations for Sparc
-ifeq ($(ARCH),SPARC)
-CCFLAGS += -mhard-float
+ifneq (,$(findstring darwin,$(SYS)))
+C_OBJ += src/misc/darwin_specific.o
endif
#
-# C compiler flags: dependancies
-#
-DCFLAGS += $(INCLUDE)
-DCFLAGS += -MM
-
-#
-# C compiler flags: linking
-#
-LCFLAGS += $(LIB)
-LCFLAGS += -Wall
-#LCFLAGS += -s
-
-#
-# C compiler flags: common flags
+# Generated header
#
-
-# Optimizations for x86 with MMX support
-ifeq ($(ARCH),MMX)
-CFLAGS += -DHAVE_MMX
-endif
+H_OBJ = include/modules_builtin.h
#
-# Additionnal debugging flags
-#
-# Debugging settings: electric fence, debuging symbols and profiling support.
-# Note that electric fence and accurate profiling are quite uncompatible.
-#CCFLAGS += -g
-#CCFLAGS += -pg
-#LCFLAGS += -g
-#LCFLAGS += -pg
-#LIB += -ldmalloc
-#LIB += -lefence
-
-#################################################################################
-# Objects and files
-#################################################################################
-
+# Other lists of files
#
-# Objects
-#
-interface_obj = interface/main.o \
- interface/interface.o \
- interface/intf_msg.o \
- interface/intf_cmd.o \
- interface/intf_ctrl.o \
- interface/control.o \
- interface/intf_console.o \
- interface/intf_$(video).o
-
-input_obj = input/input_vlan.o \
- input/input_file.o \
- input/input_netlist.o \
- input/input_network.o \
- input/input_ctrl.o \
- input/input_pcr.o \
- input/input_psi.o \
- input/input.o
-
-audio_output_obj = audio_output/audio_output.o \
- audio_output/audio_dsp.o
-
-video_output_obj = video_output/video_output.o \
- video_output/video_$(video).o \
- video_output/video_yuv.o
-
-ac3_decoder_obj = ac3_decoder/ac3_decoder.o \
- ac3_decoder/ac3_parse.o \
- ac3_decoder/ac3_exponent.o \
- ac3_decoder/ac3_bit_allocate.o \
- ac3_decoder/ac3_mantissa.o \
- ac3_decoder/ac3_rematrix.o \
- ac3_decoder/ac3_imdct.o \
- ac3_decoder/ac3_downmix.o
-
-audio_decoder_obj = audio_decoder/audio_decoder.o \
- audio_decoder/audio_math.o
-
-subtitle_decoder_obj = subtitle_decoder/subtitle_decoder.o
-
-#??generic_decoder_obj = generic_decoder/generic_decoder.o
-# remeber to add it to OBJ
-
-ifeq ($(DECODER),old)
-CFLAGS += -DOLD_DECODER
-video_decoder_obj = video_decoder_ref/video_decoder.o \
- video_decoder_ref/display.o \
- video_decoder_ref/getblk.o \
- video_decoder_ref/gethdr.o \
- video_decoder_ref/getpic.o \
- video_decoder_ref/getvlc.o \
- video_decoder_ref/idct.o \
- video_decoder_ref/motion.o \
- video_decoder_ref/mpeg2dec.o \
- video_decoder_ref/recon.o \
- video_decoder_ref/spatscal.o
-else
-video_parser_obj = video_parser/video_parser.o \
- video_parser/vpar_headers.o \
- video_parser/vpar_blocks.o \
- video_parser/vpar_motion.o \
- video_parser/vpar_synchro.o \
- video_parser/video_fifo.o
-
-video_decoder_obj = video_decoder/video_decoder.o \
- video_decoder/vdec_motion.o \
- video_decoder/$(TRANSFORM).o
-endif
-
-misc_obj = misc/mtime.o \
- misc/rsc_files.o \
- misc/netutils.o
-
-ifeq ($(ARCH),MMX)
-ifeq ($(DECODER),old)
-ASM_OBJ = video_decoder_ref/idctmmx.o \
- video_output/video_yuv_mmx.o
-else
-ASM_OBJ = video_decoder/idctmmx.o \
- video_output/video_yuv_mmx.o
-endif
-
-endif
-
-C_OBJ = $(interface_obj) \
- $(input_obj) \
- $(audio_output_obj) \
- $(video_output_obj) \
- $(ac3_decoder_obj) \
- $(audio_decoder_obj) \
- $(subtitle_decoder_obj) \
- $(generic_decoder_obj) \
- $(video_parser_obj) \
- $(video_decoder_obj) \
- $(vlan_obj) \
- $(misc_obj)
+C_DEP := $(C_OBJ:%.o=.dep/%.d)
+CPP_DEP := $(CPP_OBJ:%.o=.dep/%.dpp)
#
-# Other lists of files
+# Translate plugin names
#
-sources := $(C_OBJ:%.o=%.c)
-dependancies := $(sources:%.c=dep/%.d)
+PLUGIN_OBJ := $(shell for i in : $(PLUGINS) ; do echo " "$(PLUGINS_TARGETS)" " | sed -e 's@.*/\('$$i'\) .*@lib/\1.so@' -e 's@^ .*@@' ; done)
+BUILTIN_OBJ := $(shell for i in : $(BUILTINS) ; do echo " "$(PLUGINS_TARGETS)" " | sed -e 's@.*/\('$$i'\) .*@lib/\1.a@' -e 's@^ .*@@' ; done)
# All symbols must be exported
export
-################################################################################
+###############################################################################
# Targets
-################################################################################
+###############################################################################
#
# Virtual targets
#
-all: vlc
+all: vlc ${ALIASES} plugins vlc.app
clean:
- rm -f $(C_OBJ) $(ASM_OBJ)
+ for d in $(PLUGINS_DIR) ; do ( cd plugins/$${d} && $(MAKE) clean ) ; done
+ rm -f plugins/*/*.o plugins/*/*.moc plugins/*/*.bak
+ rm -f $(C_OBJ) $(CPP_OBJ)
+ rm -f src/*/*.o extras/*/*.o
+ rm -f lib/*.so lib/*.a vlc gnome-vlc gvlc kvlc qvlc
+ rm -rf vlc.app
distclean: clean
rm -f **/*.o **/*~ *.log
- rm -f vlc gmon.out core
- rm -rf dep
+ rm -f Makefile.opts Makefile.modules
+ rm -f include/defs.h include/config.h include/modules_builtin.h
+ rm -f config.status config.cache config.log
+ rm -f gmon.out core build-stamp
+ rm -Rf .dep
+ rm -f .gdb_history
+
+install:
+ mkdir -p $(DESTDIR)$(bindir)
+ $(INSTALL) vlc $(DESTDIR)$(bindir)
+# ugly
+ for alias in "" ${ALIASES} ; do if test $$alias ; then rm -f $(DESTDIR)$(bindir)/$$alias && ln -s vlc $(DESTDIR)$(bindir)/$$alias ; fi ; done
+ mkdir -p $(DESTDIR)$(libdir)/videolan/vlc
+ $(INSTALL) -m 644 $(PLUGINS:%=lib/%.so) $(DESTDIR)$(libdir)/videolan/vlc
+ mkdir -p $(DESTDIR)$(datadir)/videolan
+ $(INSTALL) -m 644 share/*.psf $(DESTDIR)$(datadir)/videolan
+ $(INSTALL) -m 644 share/*.png $(DESTDIR)$(datadir)/videolan
+ $(INSTALL) -m 644 share/*.xpm $(DESTDIR)$(datadir)/videolan
+
+show:
+ @echo CC: $(CC)
+ @echo CFLAGS: $(CFLAGS)
+ @echo DCFLAGS: $(DCFLAGS)
+ @echo LCFLAGS: $(LCFLAGS)
+ @echo C_OBJ: $(C_OBJ)
+ @echo CPP_OBJ: $(CPP_OBJ)
+ @echo objects: $(objects)
+ @echo cppobjects: $(cppobjects)
+ @echo PLUGIN_OBJ: $(PLUGIN_OBJ)
+ @echo BUILTIN_OBJ: $(BUILTIN_OBJ)
+
+
+# ugliest of all, but I have no time to do it -- sam
+snapshot:
+ rm -Rf /tmp/vlc-${PROGRAM_VERSION}* /tmp/vlc-${PROGRAM_VERSION}nocss*
+ # copy archive in /tmp
+ find -type d | grep -v CVS | grep -v '\.dep' | while read i ; \
+ do mkdir -p /tmp/vlc-${PROGRAM_VERSION}/$$i ; \
+ done
+ find debian -mindepth 1 -maxdepth 1 -type d | \
+ while read i ; do rm -Rf /tmp/vlc-${PROGRAM_VERSION}/$$i ; done
+ # .c .h .in .cpp .glade
+ find include src plugins -type f -name '*.[chig]*' | while read i ; \
+ do cp $$i /tmp/vlc-${PROGRAM_VERSION}/$$i ; done
+ # Makefiles
+ find . plugins -type f -name Makefile | while read i ; \
+ do cp $$i /tmp/vlc-${PROGRAM_VERSION}/$$i ; done
+ # extra files
+ cp -a extras/* /tmp/vlc-${PROGRAM_VERSION}/extras
+ cp -a doc/* /tmp/vlc-${PROGRAM_VERSION}/doc
+ find /tmp/vlc-${PROGRAM_VERSION}/extras \
+ /tmp/vlc-${PROGRAM_VERSION}/doc \
+ -type d -name CVS | while read i ; \
+ do rm -Rf $$i ; \
+ done
+ # copy misc files
+ cp vlc.spec AUTHORS COPYING ChangeLog INSTALL README TODO todo.pl \
+ Makefile.opts.in Makefile.dep Makefile.modules.in \
+ configure configure.in install-sh config.sub config.guess \
+ /tmp/vlc-${PROGRAM_VERSION}/
+ for file in control control-css vlc-gtk.menu vlc.copyright vlc.docs \
+ changelog changelog-css rules rules-css vlc.dirs \
+ vlc.menu ; do \
+ cp debian/$$file /tmp/vlc-${PROGRAM_VERSION}/debian/ ; \
+ done
+ for file in default8x16.psf default8x9.psf vlc_beos.rsrc vlc.icns ; do \
+ cp share/$$file /tmp/vlc-${PROGRAM_VERSION}/share/ ; done
+ for icon in vlc gvlc qvlc gnome-vlc kvlc ; do \
+ cp share/$$icon.xpm share/$$icon.png \
+ /tmp/vlc-${PROGRAM_VERSION}/share/ ; done
+
+ # build css-enabled archives
+ (cd /tmp ; tar cf vlc-${PROGRAM_VERSION}.tar vlc-${PROGRAM_VERSION} ; \
+ bzip2 -f -9 < vlc-${PROGRAM_VERSION}.tar \
+ > vlc-${PROGRAM_VERSION}.tar.bz2 ; \
+ gzip -f -9 vlc-${PROGRAM_VERSION}.tar )
+ mv /tmp/vlc-${PROGRAM_VERSION}.tar.gz \
+ /tmp/vlc-${PROGRAM_VERSION}.tar.bz2 ..
+
+ # clean up
+ rm -Rf /tmp/vlc-${PROGRAM_VERSION}*
+
+.PHONY: vlc.app
+vlc.app:
+ifneq (,$(findstring darwin,$(SYS)))
+ rm -rf vlc.app
+ mkdir -p vlc.app/Contents/Resources
+ mkdir -p vlc.app/Contents/MacOS/lib
+ mkdir -p vlc.app/Contents/MacOS/share
+ $(INSTALL) -m 644 extras/MacOSX_app/Contents/Info.plist vlc.app/Contents/
+ $(INSTALL) -m 644 extras/MacOSX_app/Contents/PkgInfo vlc.app/Contents/
+ $(INSTALL) vlc vlc.app/Contents/MacOS/
+ $(INSTALL) share/vlc.icns vlc.app/Contents/Resources/
+ $(INSTALL) $(PLUGINS:%=lib/%.so) vlc.app/Contents/MacOS/lib
+ $(INSTALL) -m 644 share/*.psf vlc.app/Contents/MacOS/share
+endif
FORCE:
#
-# Real targets
+# GTK/Gnome aliases - don't add too many aliases which could bloat
+# the namespace
#
-vlc: $(C_OBJ) $(ASM_OBJ)
- $(CC) $(LCFLAGS) $(CFLAGS) -o $@ $(C_OBJ) $(ASM_OBJ)
+gnome-vlc gvlc kvlc qvlc: vlc
+ rm -f $@ && ln -s vlc $@
#
# Generic rules (see below)
#
-$(dependancies): %.d: FORCE
+$(C_DEP): %.d: FORCE
@$(MAKE) -s --no-print-directory -f Makefile.dep $@
-$(C_OBJ): %.o: dep/%.d
+$(CPP_DEP): %.dpp: FORCE
+ @$(MAKE) -s --no-print-directory -f Makefile.dep $@
+$(H_OBJ): Makefile.opts Makefile.dep Makefile
+ rm -f $@ && cp $@.in $@
+ for i in $(BUILTINS) ; do \
+ echo "int module_"$$i"_InitModule (module_t *);" >> $@ ; \
+ echo "int module_"$$i"_ActivateModule (module_t *);" >> $@ ; \
+ echo "int module_"$$i"_DeactivateModule (module_t *);" >> $@ ; \
+ done
+ echo "#define ALLOCATE_ALL_BUILTINS() \\" >> $@ ;
+ echo "{ \\" >> $@ ;
+ for i in $(BUILTINS) ; do \
+ echo " ALLOCATE_BUILTIN("$$i"); \\" >> $@ ; \
+ done
+ echo "};" >> $@ ;
+
+$(C_OBJ): %.o: Makefile.opts Makefile.dep Makefile
+$(C_OBJ): %.o: .dep/%.d
$(C_OBJ): %.o: %.c
- $(CC) $(CCFLAGS) $(CFLAGS) -c -o $@ $<
-$(ASM_OBJ): %.o: %.S
+ifneq (,$(findstring darwin,$(SYS)))
+#this is uglier of all
+ @if test "src/ac3_decoder/ac3_imdct.c" = "$<"; then $(CC) `echo $(CFLAGS) | sed -e 's/-O3/-O/'` -c -o $@ $<; echo "(CC) `echo $(CFLAGS) | sed -e 's/-O3/-O/'` -c -o $@ $<"; else $(CC) $(CFLAGS) -c -o $@ $<; echo "$(CC) $(CFLAGS) -c -o $@ $<"; fi
+else
+ $(CC) $(CFLAGS) -c -o $@ $<
+endif
+
+$(CPP_OBJ): %.o: Makefile.opts Makefile.dep Makefile
+$(CPP_OBJ): %.o: .dep/%.dpp
+$(CPP_OBJ): %.o: %.cpp
$(CC) $(CFLAGS) -c -o $@ $<
-################################################################################
-# Note on generic rules and dependancies
-################################################################################
-
-# Note on dependancies: each .c file is associated with a .d file, which
-# depends of it. The .o file associated with a .c file depends of the .d, of the
-# .c itself, and of Makefile. The .d files are stored in a separate dep/
-# directory.
-# The dep directory should be ignored by CVS.
-
-# Note on inclusions: depending of the target, the dependancies files must
-# or must not be included. The problem is that if we ask make to include a file,
-# and this file does not exist, it is made before it can be included. In a
-# general way, a .d file should be included if and only if the corresponding .o
-# needs to be re-made.
-
-# Two makefiles are used: the main one (this one) has regular generic rules,
-# except for .o files, for which it calls the object Makefile. Dependancies
-# are not included in this file.
-# The object Makefile known how to make a .o from a .c, and includes
-# dependancies for the target, but only those required.
+#
+# Main application target
+#
+vlc: Makefile.opts Makefile.dep Makefile $(H_OBJ) $(C_OBJ) $(CPP_OBJ) $(BUILTIN_OBJ)
+ $(CC) $(CFLAGS) -o $@ $(C_OBJ) $(CPP_OBJ) $(BUILTIN_OBJ) $(LCFLAGS)
+ifeq ($(SYS),beos)
+ rm -f ./lib/_APP_
+ ln -s ../vlc ./lib/_APP_
+ xres -o $@ ./share/vlc_beos.rsrc
+ mimeset -f $@
+endif
+
+#
+# Plugins target
+#
+plugins: Makefile.modules Makefile.opts Makefile.dep Makefile $(PLUGIN_OBJ)
+$(PLUGIN_OBJ): FORCE
+ cd $(shell echo " "$(PLUGINS_TARGETS)" " | sed -e 's@.* \([^/]*/\)'$(@:lib/%.so=%)' .*@plugins/\1@' -e 's@^ .*@@') && $(MAKE) $(@:%=../../%)
+
+#
+# Built-in modules target
+#
+builtins: Makefile.modules Makefile.opts Makefile.dep Makefile $(BUILTIN_OBJ)
+$(BUILTIN_OBJ): FORCE
+ cd $(shell echo " "$(PLUGINS_TARGETS)" " | sed -e 's@.* \([^/]*/\)'$(@:lib/%.a=%)' .*@plugins/\1@' -e 's@^ .*@@') && $(MAKE) $(@:%=../../%)
+
projects / vlc / blobdiff