Makefile
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 include config.mak
 
 SRC_DIR = $(SRC_PATH_BARE)
 
 vpath %.texi $(SRC_PATH_BARE)
 
 PROGS-$(CONFIG_FFMPEG)   += ffmpeg
 PROGS-$(CONFIG_FFPLAY)   += ffplay
 PROGS-$(CONFIG_FFSERVER) += ffserver
 
 PROGS       = $(addsuffix   $(EXESUF), $(PROGS-yes))
 PROGS_G     = $(addsuffix _g$(EXESUF), $(PROGS-yes))
 OBJS        = $(addsuffix .o,          $(PROGS-yes)) cmdutils.o
 MANPAGES    = $(addprefix doc/, $(addsuffix .1, $(PROGS-yes)))
 
 BASENAMES   = ffmpeg ffplay ffserver
 ALLPROGS    = $(addsuffix   $(EXESUF), $(BASENAMES))
 ALLPROGS_G  = $(addsuffix _g$(EXESUF), $(BASENAMES))
 ALLMANPAGES = $(addsuffix .1, $(BASENAMES))
 
 FFLIBS-$(CONFIG_AVFILTER) += avfilter
 FFLIBS-$(CONFIG_POSTPROC) += postproc
 FFLIBS-$(CONFIG_SWSCALE)  += swscale
 
 FFLIBS := avdevice avformat avcodec avutil
 
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 DATA_FILES := $(wildcard $(SRC_DIR)/ffpresets/*.ffpreset)
 
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 include common.mak
 
 FF_LDFLAGS   := $(FFLDFLAGS)
 FF_EXTRALIBS := $(FFEXTRALIBS)
 FF_DEP_LIBS  := $(DEP_LIBS)
 
 ALL_TARGETS-$(CONFIG_VHOOK) += videohook
 ALL_TARGETS-$(BUILD_DOC)    += documentation
 
 INSTALL_TARGETS-$(CONFIG_VHOOK) += install-vhook
 ifneq ($(PROGS),)
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 INSTALL_TARGETS-yes             += install-progs install-data
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 INSTALL_TARGETS-$(BUILD_DOC)    += install-man
 endif
 INSTALL_PROGS_TARGETS-$(BUILD_SHARED) = install-libs
 
 all: $(FF_DEP_LIBS) $(PROGS) $(ALL_TARGETS-yes)
 
 $(PROGS): %$(EXESUF): %_g$(EXESUF)
 	cp -p $< $@
 	$(STRIP) $@
 
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 SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTS
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 define RESET
 $(1) :=
 $(1)-yes :=
 endef
 
 define DOSUBDIR
 $(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
 SUBDIR := $(1)/
 include $(1)/Makefile
 endef
 
 $(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
 
 ffplay_g$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS)
 ffserver_g$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS)
 
 %_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
 	$(CC) $(FF_LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)
 
 output_example$(EXESUF): output_example.o $(FF_DEP_LIBS)
 	$(CC) $(CFLAGS) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
 
 tools/%$(EXESUF): tools/%.c
 	$(CC) $(CFLAGS) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
 
 ffplay.o ffplay.d: CFLAGS += $(SDL_CFLAGS)
 
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 cmdutils.o cmdutils.d: version.h
 
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 alltools: $(addsuffix $(EXESUF),$(addprefix tools/, cws2fws pktdumper qt-faststart trasher))
 
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 VHOOKCFLAGS += $(filter-out -mdynamic-no-pic,$(CFLAGS))
 
 BASEHOOKS = fish null watermark
 ALLHOOKS = $(BASEHOOKS) drawtext imlib2 ppm
 ALLHOOKS_SRCS = $(addprefix vhook/, $(addsuffix .c, $(ALLHOOKS)))
 
 HOOKS-$(HAVE_FORK)      += ppm
 HOOKS-$(HAVE_IMLIB2)    += imlib2
 HOOKS-$(HAVE_FREETYPE2) += drawtext
 
 HOOKS = $(addprefix vhook/, $(addsuffix $(SLIBSUF), $(BASEHOOKS) $(HOOKS-yes)))
 
 VHOOKCFLAGS-$(HAVE_IMLIB2) += `imlib2-config --cflags`
 LIBS_imlib2$(SLIBSUF)       = `imlib2-config --libs`
 
 VHOOKCFLAGS-$(HAVE_FREETYPE2) += `freetype-config --cflags`
 LIBS_drawtext$(SLIBSUF)        = `freetype-config --libs`
 
 VHOOKCFLAGS += $(VHOOKCFLAGS-yes)
 
 vhook/%.o vhook/%.d: CFLAGS:=$(VHOOKCFLAGS)
 
 # vhooks compile fine without libav*, but need them nonetheless.
 videohook: $(FF_DEP_LIBS) $(HOOKS)
 
 $(eval VHOOKSHFLAGS=$(VHOOKSHFLAGS))
 vhook/%$(SLIBSUF): vhook/%.o
 	$(CC) $(LDFLAGS) -o $@ $(VHOOKSHFLAGS) $< $(VHOOKLIBS) $(LIBS_$(@F))
 
 VHOOK_DEPS = $(HOOKS:$(SLIBSUF)=.d)
 depend dep: $(VHOOK_DEPS)
 
 documentation: $(addprefix doc/, ffmpeg-doc.html faq.html ffserver-doc.html \
                                  ffplay-doc.html general.html hooks.html \
                                  $(ALLMANPAGES))
 
 doc/%.html: doc/%.texi
 	texi2html -monolithic -number $<
 	mv $(@F) $@
 
 doc/%.pod: doc/%-doc.texi
 	doc/texi2pod.pl $< $@
 
 doc/%.1: doc/%.pod
 	pod2man --section=1 --center=" " --release=" " $< > $@
 
 install: $(INSTALL_TARGETS-yes)
 
 install-progs: $(PROGS) $(INSTALL_PROGS_TARGETS-yes)
 	install -d "$(BINDIR)"
 	install -c -m 755 $(PROGS) "$(BINDIR)"
 
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 install-data: $(DATA_FILES)
 	install -d "$(DATADIR)"
 	install -m 644 $(DATA_FILES) "$(DATADIR)"
 
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 install-man: $(MANPAGES)
 	install -d "$(MANDIR)/man1"
 	install -m 644 $(MANPAGES) "$(MANDIR)/man1"
 
 install-vhook: videohook
 	install -d "$(SHLIBDIR)/vhook"
 	install -m 755 $(HOOKS) "$(SHLIBDIR)/vhook"
 
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 uninstall: uninstall-progs uninstall-data uninstall-man uninstall-vhook
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 uninstall-progs:
 	rm -f $(addprefix "$(BINDIR)/", $(ALLPROGS))
 
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 uninstall-data:
 	rm -rf "$(DATADIR)"
 
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 uninstall-man:
 	rm -f $(addprefix "$(MANDIR)/man1/",$(ALLMANPAGES))
 
 uninstall-vhook:
 	rm -f $(addprefix "$(SHLIBDIR)/",$(ALLHOOKS_SRCS:.c=$(SLIBSUF)))
 	-rmdir "$(SHLIBDIR)/vhook/"
 
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 testclean:
 	rm -rf tests/vsynth1 tests/vsynth2 tests/data tests/asynth1.sw tests/*~
 
 clean:: testclean
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 	rm -f $(ALLPROGS) $(ALLPROGS_G) output_example$(EXESUF)
 	rm -f doc/*.html doc/*.pod doc/*.1
 	rm -f $(addprefix tests/,$(addsuffix $(EXESUF),audiogen videogen rotozoom seek_test tiny_psnr))
 	rm -f $(addprefix tools/,$(addsuffix $(EXESUF),cws2fws pktdumper qt-faststart trasher))
 	rm -f vhook/*.o vhook/*~ vhook/*.so vhook/*.dylib vhook/*.dll
 
 distclean::
 	rm -f version.h config.* vhook/*.d
 
 # regression tests
 
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 check: test checkheaders
 
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 fulltest test: codectest libavtest seektest
 
 FFMPEG_REFFILE   = $(SRC_PATH)/tests/ffmpeg.regression.ref
 FFSERVER_REFFILE = $(SRC_PATH)/tests/ffserver.regression.ref
 LIBAV_REFFILE    = $(SRC_PATH)/tests/libav.regression.ref
 ROTOZOOM_REFFILE = $(SRC_PATH)/tests/rotozoom.regression.ref
 SEEK_REFFILE     = $(SRC_PATH)/tests/seek.regression.ref
 
 CODEC_TESTS = $(addprefix regtest-,             \
         mpeg                                    \
         mpeg2                                   \
         mpeg2thread                             \
         msmpeg4v2                               \
         msmpeg4                                 \
         wmv1                                    \
         wmv2                                    \
         h261                                    \
         h263                                    \
         h263p                                   \
         mpeg4                                   \
         huffyuv                                 \
         rc                                      \
         mpeg4adv                                \
         mpeg4thread                             \
         error                                   \
         mpeg4nr                                 \
         mpeg1b                                  \
         mjpeg                                   \
         ljpeg                                   \
         jpegls                                  \
         rv10                                    \
         rv20                                    \
         asv1                                    \
         asv2                                    \
         flv                                     \
         ffv1                                    \
         snow                                    \
         snowll                                  \
         dv                                      \
         dv50                                    \
         svq1                                    \
         flashsv                                 \
         mp2                                     \
         ac3                                     \
         g726                                    \
         adpcm_ima_wav                           \
         adpcm_ima_qt                            \
         adpcm_ms                                \
         adpcm_yam                               \
         adpcm_swf                               \
         flac                                    \
         wma                                     \
         pcm                                     \
     )
 
 LAVF_TESTS = $(addprefix regtest-,              \
         avi                                     \
         asf                                     \
         rm                                      \
         mpg                                     \
         ts                                      \
         swf                                     \
         ffm                                     \
         flv_fmt                                 \
         mov                                     \
         dv_fmt                                  \
         gxf                                     \
         nut                                     \
         mkv                                     \
         pbmpipe                                 \
         pgmpipe                                 \
         ppmpipe                                 \
         gif                                     \
         yuv4mpeg                                \
         pgm                                     \
         ppm                                     \
         bmp                                     \
         tga                                     \
         tiff                                    \
         sgi                                     \
         jpg                                     \
         wav                                     \
         alaw                                    \
         mulaw                                   \
         au                                      \
         mmf                                     \
         aiff                                    \
         voc                                     \
         ogg                                     \
         pixfmt                                  \
     )
 
 REGFILES = $(addprefix tests/data/,$(addsuffix .$(1),$(2:regtest-%=%)))
 
 CODEC_ROTOZOOM = $(call REGFILES,rotozoom.regression,$(CODEC_TESTS))
 CODEC_VSYNTH   = $(call REGFILES,vsynth.regression,$(CODEC_TESTS))
 
 LAVF_REGFILES = $(call REGFILES,lavf.regression,$(LAVF_TESTS))
 
 LAVF_REG     = tests/data/lavf.regression
 ROTOZOOM_REG = tests/data/rotozoom.regression
 VSYNTH_REG   = tests/data/vsynth.regression
 
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 ifneq ($(CONFIG_SWSCALE),yes)
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 servertest codectest $(CODEC_TESTS) libavtest: swscale-error
 swscale-error:
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 	@echo
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 	@echo "This regression test requires --enable-swscale."
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 	@echo
 	@exit 1
 endif
 
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 ifneq ($(CONFIG_ZLIB),yes)
 regtest-flashsv codectest: zlib-error
 endif
 zlib-error:
 	@echo
 	@echo "This regression test requires zlib."
 	@echo
 	@exit 1
 
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 codectest: $(VSYNTH_REG) $(ROTOZOOM_REG)
 	diff -u -w $(FFMPEG_REFFILE)   $(VSYNTH_REG)
 	diff -u -w $(ROTOZOOM_REFFILE) $(ROTOZOOM_REG)
 
 libavtest: $(LAVF_REG)
 	diff -u -w $(LIBAV_REFFILE) $(LAVF_REG)
 
 $(VSYNTH_REG) $(ROTOZOOM_REG) $(LAVF_REG):
 	cat $^ > $@
 
 $(LAVF_REG):     $(LAVF_REGFILES)
 $(ROTOZOOM_REG): $(CODEC_ROTOZOOM)
 $(VSYNTH_REG):   $(CODEC_VSYNTH)
 
 $(CODEC_VSYNTH) $(CODEC_ROTOZOOM): $(CODEC_TESTS)
 
 $(LAVF_REGFILES): $(LAVF_TESTS)
 
 $(CODEC_TESTS) $(LAVF_TESTS): regtest-ref
 
 regtest-ref: ffmpeg$(EXESUF) tests/vsynth1/00.pgm tests/vsynth2/00.pgm tests/asynth1.sw
 
 $(CODEC_TESTS) regtest-ref: tests/tiny_psnr$(EXESUF)
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 	$(SRC_PATH)/tests/regression.sh $@ vsynth   tests/vsynth1 a "$(TARGET_EXEC)" "$(TARGET_PATH)"
 	$(SRC_PATH)/tests/regression.sh $@ rotozoom tests/vsynth2 a "$(TARGET_EXEC)" "$(TARGET_PATH)"
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 $(LAVF_TESTS):
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 	$(SRC_PATH)/tests/regression.sh $@ lavf tests/vsynth1 b "$(TARGET_EXEC)" "$(TARGET_PATH)"
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 seektest: codectest libavtest tests/seek_test$(EXESUF)
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 	$(SRC_PATH)/tests/seek_test.sh $(SEEK_REFFILE) "$(TARGET_EXEC)" "$(TARGET_PATH)"
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 servertest: ffserver$(EXESUF) tests/vsynth1/00.pgm tests/asynth1.sw
 	@echo
 	@echo "Unfortunately ffserver is broken and therefore its regression"
 	@echo "test fails randomly. Treat the results accordingly."
 	@echo
 	$(SRC_PATH)/tests/server-regression.sh $(FFSERVER_REFFILE) $(SRC_PATH)/tests/test.conf
 
 tests/vsynth1/00.pgm: tests/videogen$(EXESUF)
 	mkdir -p tests/vsynth1
 	$(BUILD_ROOT)/$< 'tests/vsynth1/'
 
 tests/vsynth2/00.pgm: tests/rotozoom$(EXESUF)
 	mkdir -p tests/vsynth2
 	$(BUILD_ROOT)/$< 'tests/vsynth2/' $(SRC_PATH)/tests/lena.pnm
 
 tests/asynth1.sw: tests/audiogen$(EXESUF)
 	$(BUILD_ROOT)/$< $@
 
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 tests/%$(EXESUF): tests/%.c
 	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $< $(HOSTLIBS)
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 tests/seek_test$(EXESUF): tests/seek_test.c $(FF_DEP_LIBS)
 	$(CC) $(FF_LDFLAGS) $(CFLAGS) -o $@ $< $(FF_EXTRALIBS)
 
 
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 .PHONY: lib videohook documentation *test regtest-* swscale-error zlib-error alltools check
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 -include $(VHOOK_DEPS)