include config.mak

vpath %.c    $(SRC_PATH)
vpath %.h    $(SRC_PATH)
vpath %.S    $(SRC_PATH)
vpath %.asm  $(SRC_PATH)
vpath %.v    $(SRC_PATH)
vpath %.texi $(SRC_PATH)

ifndef V
Q      = @
ECHO   = printf "$(1)\t%s\n" $(2)
BRIEF  = CC AS YASM AR LD HOSTCC
SILENT = DEPCC YASMDEP RM RANLIB
MSG    = $@
M      = @$(call ECHO,$(TAG),$@);
$(foreach VAR,$(BRIEF), \
    $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_PATH)/%=%)); $(INSTALL))
endif

IFLAGS     := -I. -I$(SRC_PATH)
CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
CFLAGS     += $(ECFLAGS)
CCFLAGS     = $(CFLAGS)
YASMFLAGS  += $(IFLAGS) -Pconfig.asm
HOSTCFLAGS += $(IFLAGS)
LDFLAGS    += $(ALLFFLIBS:%=-Llib%)

define COMPILE
	$($(1)DEP)
	$($(1)) $(CPPFLAGS) $($(1)FLAGS) $($(1)_DEPFLAGS) -c $($(1)_O) $<
endef

COMPILE_C = $(call COMPILE,CC)
COMPILE_S = $(call COMPILE,AS)

%.o: %.c
	$(COMPILE_C)

%.o: %.S
	$(COMPILE_S)

%.ho: %.h
	$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<

%.ver: %.v
	$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@

%.c %.h: TAG = GEN

PROGS-$(CONFIG_FFMPEG)   += ffmpeg
PROGS-$(CONFIG_FFPLAY)   += ffplay
PROGS-$(CONFIG_FFPROBE)  += ffprobe
PROGS-$(CONFIG_FFSERVER) += ffserver

PROGS      := $(PROGS-yes:%=%$(EXESUF))
OBJS        = $(PROGS-yes:%=%.o) cmdutils.o
TESTTOOLS   = audiogen videogen rotozoom tiny_psnr base64
HOSTPROGS  := $(TESTTOOLS:%=tests/%)
TOOLS       = qt-faststart trasher
TOOLS-$(CONFIG_ZLIB) += cws2fws

BASENAMES   = ffmpeg ffplay ffprobe ffserver
ALLPROGS    = $(BASENAMES:%=%$(EXESUF))
ALLMANPAGES = $(BASENAMES:%=%.1)

ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale

FFLIBS-$(CONFIG_AVDEVICE) += avdevice
FFLIBS-$(CONFIG_AVFILTER) += avfilter
FFLIBS-$(CONFIG_AVFORMAT) += avformat
FFLIBS-$(CONFIG_AVCODEC)  += avcodec
FFLIBS-$(CONFIG_POSTPROC) += postproc
FFLIBS-$(CONFIG_SWSCALE)  += swscale

FFLIBS := avutil

DATA_FILES := $(wildcard $(SRC_PATH)/ffpresets/*.ffpreset)

SKIPHEADERS = cmdutils_common_opts.h

include $(SRC_PATH)/common.mak

FF_EXTRALIBS := $(FFEXTRALIBS)
FF_DEP_LIBS  := $(DEP_LIBS)

all: $(FF_DEP_LIBS) $(PROGS)

$(TOOLS): %$(EXESUF): %.o
	$(LD) $(LDFLAGS) -o $@ $< $(ELIBS)

tools/cws2fws$(EXESUF): ELIBS = -lz

config.h: .config
.config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
	@-tput bold 2>/dev/null
	@-printf '\nWARNING: $(?F) newer than config.h, rerun configure\n\n'
	@-tput sgr0 2>/dev/null

SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \
               ALTIVEC-OBJS MMX-OBJS NEON-OBJS X86-OBJS YASM-OBJS-FFT YASM-OBJS \
               HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS ARMV6-OBJS TOOLS

define RESET
$(1) :=
$(1)-yes :=
endef

define DOSUBDIR
$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
SUBDIR := $(1)/
include $(SRC_PATH)/$(1)/Makefile
endef

$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))

ffplay.o: CFLAGS += $(SDL_CFLAGS)
ffplay$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS)
ffserver$(EXESUF): LDFLAGS += $(FFSERVERLDFLAGS)

$(PROGS): %$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
	$(LD) $(LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)

OBJDIRS += tools

-include $(wildcard tools/*.d)

VERSION_SH  = $(SRC_PATH)/version.sh
GIT_LOG     = $(SRC_PATH)/.git/logs/HEAD

.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) config.mak
.version: M=@

version.h .version:
	$(M)$(VERSION_SH) $(SRC_PATH) version.h $(EXTRA_VERSION)
	$(Q)touch .version

# force version.sh to run whenever version might have changed
-include .version

ifdef PROGS
install: install-progs install-data
endif

install: install-libs install-headers

install-libs: install-libs-yes

install-progs-yes:
install-progs-$(CONFIG_SHARED): install-libs

install-progs: install-progs-yes $(PROGS)
	$(Q)mkdir -p "$(BINDIR)"
	$(INSTALL) -c -m 755 $(PROGS) "$(BINDIR)"

install-data: $(DATA_FILES)
	$(Q)mkdir -p "$(DATADIR)"
	$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"

uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data

uninstall-progs:
	$(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))

uninstall-data:
	$(RM) -r "$(DATADIR)"

clean::
	$(RM) $(ALLPROGS)
	$(RM) $(CLEANSUFFIXES)
	$(RM) $(TOOLS)
	$(RM) $(CLEANSUFFIXES:%=tools/%)

distclean::
	$(RM) $(DISTCLEANSUFFIXES)
	$(RM) config.* .version version.h libavutil/avconfig.h

config:
	$(SRC_PATH)/configure $(value LIBAV_CONFIGURATION)

include $(SRC_PATH)/doc/Makefile
include $(SRC_PATH)/tests/Makefile

$(sort $(OBJDIRS)):
	$(Q)mkdir -p $@

# Dummy rule to stop make trying to rebuild removed or renamed headers
%.h:
	@:

# Disable suffix rules.  Most of the builtin rules are suffix rules,
# so this saves some time on slow systems.
.SUFFIXES:

.PHONY: all all-yes alltools *clean config examples install*
.PHONY: testprogs uninstall*