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LIBRARIES-$(CONFIG_AVUTIL)     += libavutil
LIBRARIES-$(CONFIG_SWSCALE)    += libswscale
LIBRARIES-$(CONFIG_SWRESAMPLE) += libswresample
LIBRARIES-$(CONFIG_AVCODEC)    += libavcodec
LIBRARIES-$(CONFIG_AVFORMAT)   += libavformat
LIBRARIES-$(CONFIG_AVDEVICE)   += libavdevice
LIBRARIES-$(CONFIG_AVFILTER)   += libavfilter
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COMPONENTS-$(CONFIG_AVUTIL)     += ffmpeg-utils
COMPONENTS-$(CONFIG_SWSCALE)    += ffmpeg-scaler
COMPONENTS-$(CONFIG_SWRESAMPLE) += ffmpeg-resampler
COMPONENTS-$(CONFIG_AVCODEC)    += ffmpeg-codecs ffmpeg-bitstream-filters
COMPONENTS-$(CONFIG_AVFORMAT)   += ffmpeg-formats ffmpeg-protocols
COMPONENTS-$(CONFIG_AVDEVICE)   += ffmpeg-devices
COMPONENTS-$(CONFIG_AVFILTER)   += ffmpeg-filters
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MANPAGES1   = $(PROGS-yes:%=doc/%.1)    $(PROGS-yes:%=doc/%-all.1)    $(COMPONENTS-yes:%=doc/%.1)
MANPAGES3   = $(LIBRARIES-yes:%=doc/%.3)
MANPAGES    = $(MANPAGES1) $(MANPAGES3)
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PODPAGES    = $(PROGS-yes:%=doc/%.pod)  $(PROGS-yes:%=doc/%-all.pod)  $(COMPONENTS-yes:%=doc/%.pod)  $(LIBRARIES-yes:%=doc/%.pod)
HTMLPAGES   = $(PROGS-yes:%=doc/%.html) $(PROGS-yes:%=doc/%-all.html) $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html) \
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              doc/developer.html                                        \
              doc/faq.html                                              \
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              doc/fate.html                                             \
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              doc/general.html                                          \
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              doc/git-howto.html                                        \
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              doc/nut.html                                              \
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              doc/platform.html                                         \
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TXTPAGES    = doc/fate.txt                                              \


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DOCS-$(CONFIG_HTMLPAGES) += $(HTMLPAGES)
DOCS-$(CONFIG_PODPAGES)  += $(PODPAGES)
DOCS-$(CONFIG_MANPAGES)  += $(MANPAGES)
DOCS-$(CONFIG_TXTPAGES)  += $(TXTPAGES)
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DOCS = $(DOCS-yes)
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all-$(CONFIG_DOC): doc

doc: documentation
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apidoc: doc/doxy/html
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documentation: $(DOCS)

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TEXIDEP = awk '/^@(verbatim)?include/ { printf "$@: $(@D)/%s\n", $$2 }' <$< >$(@:%=%.d)
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doc/%.txt: TAG = TXT
doc/%.txt: doc/%.texi
	$(Q)$(TEXIDEP)
	$(M)makeinfo --force --no-headers -o $@ $< 2>/dev/null

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GENTEXI  = format codec
GENTEXI := $(GENTEXI:%=doc/avoptions_%.texi)

$(GENTEXI): TAG = GENTEXI
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$(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
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	$(M)doc/print_options $* > $@

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doc/%.html: TAG = HTML
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doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
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	$(Q)$(TEXIDEP)
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	$(M)texi2html -I doc -monolithic --D=config-not-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<

doc/%-all.html: TAG = HTML
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
	$(Q)$(TEXIDEP)
	$(M)texi2html -I doc -monolithic --D=config-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
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doc/%.pod: TAG = POD
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doc/%.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
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	$(Q)$(TEXIDEP)
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	$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-not-all=yes -Idoc $< $@

doc/%-all.pod: TAG = POD
doc/%-all.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
	$(Q)$(TEXIDEP)
	$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-all=yes -Idoc $< $@
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doc/%.1 doc/%.3: TAG = MAN
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doc/%.1: doc/%.pod $(GENTEXI)
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	$(M)pod2man --section=1 --center=" " --release=" " $< > $@
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doc/%.3: doc/%.pod $(GENTEXI)
	$(M)pod2man --section=3 --center=" " --release=" " $< > $@
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$(DOCS) doc/doxy/html: | doc/

doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(INSTHEADERS)
	$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $^
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install-man:

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ifdef CONFIG_MANPAGES
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install-progs-$(CONFIG_DOC): install-man

install-man: $(MANPAGES)
	$(Q)mkdir -p "$(MANDIR)/man1"
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	$(INSTALL) -m 644 $(MANPAGES1) "$(MANDIR)/man1"
	$(Q)mkdir -p "$(MANDIR)/man3"
	$(INSTALL) -m 644 $(MANPAGES3) "$(MANDIR)/man3"
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endif
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uninstall: uninstall-man

uninstall-man:
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	$(RM) $(addprefix "$(MANDIR)/man1/",$(MANPAGES1))
	$(RM) $(addprefix "$(MANDIR)/man3/",$(MANPAGES3))
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clean:: docclean
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distclean:: docclean
	$(RM) doc/config.texi

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docclean:
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	$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 $(CLEANSUFFIXES:%=doc/%) doc/avoptions_*.texi
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	$(RM) -r doc/doxy/html
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-include $(wildcard $(DOCS:%=%.d))

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.PHONY: apidoc doc documentation