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    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

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    13 avril 2011, par

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    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
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Sur d’autres sites (3498)

  • 4 ways to create more effective funnels

    24 février 2020, par Jake Thornton — Uncategorized

    Accurately measuring the success of your customer’s journey on your website is vital to increasing conversions and having the best outcome for your business. When it comes to website analytics, the Funnels feature is the best place to start measuring each touch point in the customer journey. From here you’ll find out where you lose your visitors so you can make changes to your website and convert more in the future.

    The funnels feature lets you measure the steps (actions, events and pages) your users go through to reach the desired outcomes you want them to achieve. This gives you valuable insights into the desired journey for your customers. 

    When creating a funnel with the funnels feature, you anticipate the customer journey that you want to measure, for example : 

    Step 1 – Visitor lands on your homepage and sees the promotion you’re offering. 
    Step 2 – They click the call-to-action (CTA) button which leads them to information on the product
    Step 3 – They add the product to their cart
    Step 4 – They fill in their personal information and credit card details
    Step 5 – They click the “pay now” button

    From here you can see exactly how many visitors you lose between each step. Then you can implement new techniques to decrease these drop-offs and evaluate the success of your changes over time.

    But what about the non-conventional routes to conversion ?

    That’s right, visitors can end up in all different directions on your website. It’s important to use other features in Matomo to discover these popular pathways your visitors may be taking before the point of conversion.

    Here are 4 Matomo features for discovering important alternative funnels on your website :

    Transitions

    The transitions feature lets you visualise mini funnels on selected pages. You can see how visitors landed on a specific page, and then where they moved on to from this specific page.

    First you need to identify the page(s) that sells your product or service the most. 

    Whether it’s your homepage, a product page or an information page on your services. The transitions feature will then show you the before and after pathways visitors are already taking to get from page to page

    The transitions feature is located under Behaviour – Pages. Find the important page you would like to analyse and click on the Transitions icon.

    In the example above, you’ll see 18% of visitors who entered from internal pages came from the homepage, which you may have already suspected as the first step in your conversion funnel.

    However, the exact same % of visitors are also entering through a blog post article called /best-of-the-best/

    In this case, it highlights the importance of creating funnels with popular blog posts as the first step in the funnel. Your visitors may have found this post through social media, a search engine etc. Whatever the case, your blog posts could be your biggest influencer for conversions on your website.

    >> Learn more about Transitions

    Page Overlay

    The overlay feature lets you see exactly where visitors are clicking on your landing pages which moves them either in the right or wrong direction in the conversion funnel. 

    If you see a high percentage of clicks to a page that’s off the beaten track from your desired conversion funnel, use the Funnels feature to follow this pathway and analyse how they get back to the pathway you initially intended them to take.

    The best thing about the page overlay feature is the visualisation showing the results on the landing page itself. This gives you an idea of where they may be getting distracted by the wrong content.

    You can locate the page overlay feature beside the transitions feature, shown in the screenshot below.

    The page overlay feature also gives you a summary of the pageviews, clicks, bounce rates, exit rates and average time spent on page, so you can measure the overall success of each page in the display menu.

    >> Learn more about Page Overlay

    Users Flow

    If you’re looking to see many of the most popular pathways your visitors are taking all at once, then Users Flow is a powerful feature which shows this visualisation.

    Note : For Matomo On-Premise users, Users Flow is a premium feature. More information here.

    The thicker the blue line between interactions means the more popular the pathway is. 

    Here you can see how visitors are navigating their way through your website before converting, this presenting clear steps in the conversion funnel that require monitoring and improving on to ensure your efforts are going into the right areas on your website.

    >> Learn more about Users Flow

    Row Evolution

    Another important feature to use which is integrated within the funnels feature, is row evolution which shows you important changes in your user’s behaviour over time.

    Having row evolution integrated within the funnels feature gives you a big advantage as it lets you measure the specific metrics and landing pages within your conversion funnel.

    You’ll be able to see the increases and decreases in entries and exits to your landing page, as well as increases and decreases in the number of visitors who proceed to the next step in the funnel, and the conversion rate %.

    You’ll also be able to add annotations so you can note all the changes you make to your landing pages over time and quickly identify how these changes impacted your conversion funnels.

    >>Learn more about Row Evolution

    Continually create more and more funnels !

    Measuring the success of the desired pathway you want your customers to take is crucial to ensure you are presenting the best possible user experience for your visitors.

    However, creating funnels for the less desired pathways is equally important. This way you’ll discover popular journeys your visitors are taking within your website you weren’t previously aware of, and can monitor them to make sure they still work in the future. You’ll be able to fix pain points easier and find faster ways to get visitors back on the right track to converting.

  • FFMPEG build on Windows using MSVC - make fails

    28 août 2024, par Maya Sela

    I am trying to build FFMPEG on Windows with MSVC. I am following this guide.
    
I have managed to setup the environment in order to configure successfully, but make doesn't work.
    
From VS2013 x64 Native Tools Command Prompt I run

    


    msys2_shell.cmd -use-full-path


    


    and from msys2_shell.cmd I go to the ffmpeg folder and run

    


    mingw32-make


    


    which outputs :

    


    awk: cmd. line:1:                                                                                                        ^ syntax error
awk: cmd. line:1: /including/ { sub(/^.*file: */, ""); gsub(/\/, "/"); if (!match($0, / /)) print "libavdevice/alldevices.o:", $0 }
awk: cmd. line:1:                                                                                                           ^ unterminated string
ffbuild/common.mak:67: recipe for target 'libavdevice/alldevices.o' failed
mingw32-make: *** [libavdevice/alldevices.o] Error 1


    


    Some more info :

    


    $ mingw32-make --version
GNU Make 3.82.90
Built for i686-pc-mingw32
Copyright (C) 1988-2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later /gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


    


    FFMPEG snapshot version N-100459-ga7f9b3b
    
The Makefile :

    


    MAIN_MAKEFILE=1
include ffbuild/config.mak

vpath %.c    $(SRC_PATH)
vpath %.cpp  $(SRC_PATH)
vpath %.h    $(SRC_PATH)
vpath %.inc  $(SRC_PATH)
vpath %.m    $(SRC_PATH)
vpath %.S    $(SRC_PATH)
vpath %.asm  $(SRC_PATH)
vpath %.rc   $(SRC_PATH)
vpath %.v    $(SRC_PATH)
vpath %.texi $(SRC_PATH)
vpath %.cu   $(SRC_PATH)
vpath %.ptx  $(SRC_PATH)
vpath %/fate_config.sh.template $(SRC_PATH)

TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch
HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options

# $(FFLIBS-yes) needs to be in linking order
FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
FFLIBS-$(CONFIG_AVFILTER)   += avfilter
FFLIBS-$(CONFIG_AVFORMAT)   += avformat
FFLIBS-$(CONFIG_AVCODEC)    += avcodec
FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
FFLIBS-$(CONFIG_POSTPROC)   += postproc
FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
FFLIBS-$(CONFIG_SWSCALE)    += swscale

FFLIBS := avutil

DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd

SKIPHEADERS = compat/w32pthreads.h

# first so "all" becomes default target
all: all-yes

include $(SRC_PATH)/tools/Makefile
include $(SRC_PATH)/ffbuild/common.mak

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

$(TOOLS): %$(EXESUF): %.o
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(EXTRALIBS-$(*F)) $(EXTRALIBS) $(ELIBS)

target_dec_%_fuzzer$(EXESUF): target_dec_%_fuzzer.o $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)

tools/target_bsf_%_fuzzer$(EXESUF): tools/target_bsf_%_fuzzer.o $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)

target_dem_%_fuzzer$(EXESUF): target_dem_%_fuzzer.o $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)

tools/target_dem_fuzzer$(EXESUF): tools/target_dem_fuzzer.o $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)

tools/target_io_dem_fuzzer$(EXESUF): tools/target_io_dem_fuzzer.o $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)


tools/enum_options$(EXESUF): ELIBS = $(FF_EXTRALIBS)
tools/enum_options$(EXESUF): $(FF_DEP_LIBS)
tools/sofa2wavs$(EXESUF): ELIBS = $(FF_EXTRALIBS)
tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS)
tools/target_dec_%_fuzzer$(EXESUF): $(FF_DEP_LIBS)
tools/target_dem_%_fuzzer$(EXESUF): $(FF_DEP_LIBS)

CONFIGURABLE_COMPONENTS =                                           \
    $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))                 \
    $(SRC_PATH)/libavcodec/bitstream_filters.c                      \
    $(SRC_PATH)/libavcodec/parsers.c                                \
    $(SRC_PATH)/libavformat/protocols.c                             \

config.h: ffbuild/.config
ffbuild/.config: $(CONFIGURABLE_COMPONENTS)
    @-tput bold 2>/dev/null
    @-printf '\nWARNING: $(?) newer than config.h, rerun configure\n\n'
    @-tput sgr0 2>/dev/null

SUBDIR_VARS := CLEANFILES FFLIBS HOSTPROGS TESTPROGS TOOLS               \
               HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS            \
               ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS     \
               ALTIVEC-OBJS VSX-OBJS MMX-OBJS X86ASM-OBJS                \
               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSP-OBJS MSA-OBJS         \
               MMI-OBJS OBJS SLIBOBJS HOSTOBJS TESTOBJS

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

define DOSUBDIR
$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
SUBDIR := $(1)/
include $(SRC_PATH)/$(1)/Makefile
-include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
-include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
include $(SRC_PATH)/ffbuild/library.mak
endef

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

include $(SRC_PATH)/fftools/Makefile
include $(SRC_PATH)/doc/Makefile
include $(SRC_PATH)/doc/examples/Makefile

libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h

$(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
ifeq ($(STRIPTYPE),direct)
    $(STRIP) -o $@ $<
else
    $(CP) $< $@
    $(STRIP) $@
endif

%$(PROGSSUF)_g$(EXESUF): $(FF_DEP_LIBS)
    $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)

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

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

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

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

install: install-libs install-headers

install-libs: install-libs-yes

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

uninstall: uninstall-data uninstall-headers uninstall-libs uninstall-pkgconfig

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

clean::
    $(RM) $(CLEANSUFFIXES)
    $(RM) $(addprefix compat/,$(CLEANSUFFIXES)) $(addprefix compat/*/,$(CLEANSUFFIXES)) $(addprefix compat/*/*/,$(CLEANSUFFIXES))
    $(RM) -r coverage-html
    $(RM) -rf coverage.info coverage.info.in lcov

distclean:: clean
    $(RM) .version avversion.h config.asm config.h mapfile  \
        ffbuild/.config ffbuild/config.* libavutil/avconfig.h \
        version.h libavutil/ffversion.h libavcodec/codec_names.h \
        libavcodec/bsf_list.c libavformat/protocol_list.c \
        libavcodec/codec_list.c libavcodec/parser_list.c \
        libavfilter/filter_list.c libavdevice/indev_list.c libavdevice/outdev_list.c \
        libavformat/muxer_list.c libavformat/demuxer_list.c
ifeq ($(SRC_LINK),src)
    $(RM) src
endif
    $(RM) -rf doc/examples/pc-uninstalled

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

build: all alltools examples testprogs
check: all alltools examples testprogs fate

include $(SRC_PATH)/tests/Makefile

$(sort $(OUTDIRS)):
    $(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 build check config testprogs
.PHONY: *clean install* uninstall*


    


    Any suggestions ?
    
Thanks !

    


    EDIT
    
Tried starting with x64 Native Tools Command Prompt for VS 2019 and got the same result.

    


    EDIT #2 (because this is too long for a comment)

    


    $ mingw32-make Q=
mkdir -p libavutil/
mkdir -p libswscale/
mkdir -p libswresample/
mkdir -p libavcodec/
mkdir -p libavformat/
mkdir -p libavfilter/
mkdir -p libavdevice/
awk: cmd. line:1: /including/ { sub(/^.*file: */, ""); gsub(/\/, "/"); if (!match($0, / /)) print "libavdevice/alldevices.o:", $0 }
awk: cmd. line:1:                                                                                                        ^ syntax error
awk: cmd. line:1: /including/ { sub(/^.*file: */, ""); gsub(/\/, "/"); if (!match($0, / /)) print "libavdevice/alldevices.o:", $0 }
awk: cmd. line:1:                                                                                                           ^ unterminated string
ffbuild/common.mak:67: recipe for target 'libavdevice/alldevices.o' failed
mingw32-make: *** [libavdevice/alldevices.o] Error 1


    


    ffbuild/common.mak is :

    


    #
# common bits used by all libraries
#

DEFAULT_X86ASMD=.dbg

ifeq ($(DBG),1)
X86ASMD=$(DEFAULT_X86ASMD)
else
X86ASMD=
endif

ifndef SUBDIR

ifndef V
Q      = @
ECHO   = printf "$(1)\t%s\n" $(2)
BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD STRIP CP WINDRES NVCC
SILENT = DEPCC DEPHOSTCC DEPAS DEPX86ASM RANLIB RM

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_DIR)/%=%)); $(INSTALL))
endif

ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample

# NASM requires -I path terminated with /
IFLAGS     := -I. -I$(SRC_LINK)/
CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
CFLAGS     += $(ECFLAGS)
CCFLAGS     = $(CPPFLAGS) $(CFLAGS)
OBJCFLAGS  += $(EOBJCFLAGS)
OBJCCFLAGS  = $(CPPFLAGS) $(CFLAGS) $(OBJCFLAGS)
ASFLAGS    := $(CPPFLAGS) $(ASFLAGS)
CXXFLAGS   := $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS)
X86ASMFLAGS += $(IFLAGS:%=%/) -I$( -Pconfig.asm

HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
LDFLAGS    := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)

define COMPILE
       $(call $(1)DEP,$(1))
       $($(1)) $($(1)FLAGS) $($(2)) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
endef

COMPILE_C = $(call COMPILE,CC)
COMPILE_CXX = $(call COMPILE,CXX)
COMPILE_S = $(call COMPILE,AS)
COMPILE_M = $(call COMPILE,OBJCC)
COMPILE_X86ASM = $(call COMPILE,X86ASM)
COMPILE_HOSTC = $(call COMPILE,HOSTCC)
COMPILE_NVCC = $(call COMPILE,NVCC)
COMPILE_MMI = $(call COMPILE,CC,MMIFLAGS)
COMPILE_MSA = $(call COMPILE,CC,MSAFLAGS)

%_mmi.o: %_mmi.c
    $(COMPILE_MMI)

%_msa.o: %_msa.c
    $(COMPILE_MSA)

%.o: %.c
    $(COMPILE_C)

%.o: %.cpp
    $(COMPILE_CXX)

%.o: %.m
    $(COMPILE_M)

%.s: %.c
    $(CC) $(CCFLAGS) -S -o $@ $<

%.o: %.S
    $(COMPILE_S)

%_host.o: %.c
    $(COMPILE_HOSTC)

%$(DEFAULT_X86ASMD).asm: %.asm
    $(DEPX86ASM) $(X86ASMFLAGS) -M -o $@ $< > $(@:.asm=.d)
    $(X86ASM) $(X86ASMFLAGS) -e $< | sed '/^%/d;/^$$/d;' > $@

%.o: %.asm
    $(COMPILE_X86ASM)
    -$(if $(ASMSTRIPFLAGS), $(STRIP) $(ASMSTRIPFLAGS) $@)

%.o: %.rc
    $(WINDRES) $(IFLAGS) --preprocessor "$(DEPWINDRES) -E -xc-header -DRC_INVOKED $(CC_DEPFLAGS)" -o $@ $<

%.i: %.c
    $(CC) $(CCFLAGS) $(CC_E) $<

%.h.c:
    $(Q)echo '#include "$*.h"' >$@

%.ptx: %.cu $(SRC_PATH)/compat/cuda/cuda_runtime.h
    $(COMPILE_NVCC)

%.ptx.c: %.ptx
    $(Q)sh $(SRC_PATH)/compat/cuda/ptx2c.sh $@ $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)

%.c %.h %.pc %.ver %.version: TAG = GEN

# 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:

# Do not delete intermediate files from chains of implicit rules
$(OBJS):
endif

include $(SRC_PATH)/ffbuild/arch.mak

OBJS      += $(OBJS-yes)
SLIBOBJS  += $(SLIBOBJS-yes)
FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
TESTPROGS += $(TESTPROGS-yes)

LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(foreach lib,EXTRALIBS-$(NAME) $(FFLIBS:%=EXTRALIBS-%),$($(lib))) $(EXTRALIBS)

OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
SLIBOBJS  := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)tests/%) $(TESTPROGS:%=$(SUBDIR)tests/%.o)
TESTPROGS := $(TESTPROGS:%=$(SUBDIR)tests/%$(EXESUF))
HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)
HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
TOOLS     += $(TOOLS-yes)
TOOLOBJS  := $(TOOLS:%=tools/%.o)
TOOLS     := $(TOOLS:%=tools/%$(EXESUF))
HEADERS   += $(HEADERS-yes)

PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(2)LIBNAME))
DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib),$(CONFIG_SHARED:yes=S)))
STATIC_DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))

SRC_DIR    := $(SRC_PATH)/lib$(NAME)
ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
HOBJS        = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
PTXOBJS      = $(filter %.ptx.o,$(OBJS))
$(HOBJS):     CCFLAGS += $(CFLAGS_HEADERS)
checkheaders: $(HOBJS)
.SECONDARY:   $(HOBJS:.o=.c) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=)

alltools: $(TOOLS)

$(HOSTOBJS): %.o: %.c
    $(COMPILE_HOSTC)

$(HOSTPROGS): %$(HOSTEXESUF): %.o
    $(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTEXTRALIBS)

$(OBJS):     | $(sort $(dir $(OBJS)))
$(HOBJS):    | $(sort $(dir $(HOBJS)))
$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
$(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
$(TOOLOBJS): | tools

OUTDIRS := $(OUTDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))

CLEANSUFFIXES     = *.d *.gcda *.gcno *.h.c *.ho *.map *.o *.pc *.ptx *.ptx.c *.ver *.version *$(DEFAULT_X86ASMD).asm *~ *.ilk *.pdb
LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a

define RULES
clean::
    $(RM) $(HOSTPROGS) $(TESTPROGS) $(TOOLS)
endef

$(eval $(RULES))

-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_X86ASMD).d)


    


  • Android : FFMpeg (video creation) crashes with no exception when loading binaries in lower APIs (18 in my case) but works in newer ones

    6 mai 2019, par Diego Perez

    I have an app that uses FFMpeg for video creation (these next lines are the relevant build.gradle plugin files) :

    //writingminds
    
api 'com.writingminds:FFmpegAndroid:0.3.2'
    
//JavaCV video
    
api group: 'org.bytedeco', name: 'javacv', version: '1.4.4'
    
api group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '4.0.1-1.4.4', classifier: 'android-arm'
    
api group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '4.1-1.4.4', classifier: 'android-arm'

    And my app is working (and creating video) just fine in my phone with a newer Android 8 version but I’m having weird problems in my old API 18 tablet (where, as a note, I had to install multidex).

    These next lines are the main part of FFMpeg video creation, where binaries are loaded, and, in fact, binaries load are where app crashes in my tablet in the line "ffmpeg.loadBinary(new LoadBinaryResponseHandler()..."

    As you can see, I have a try/catch where the app crashes, but it crashes with no aparent exception, as catch blocks are never hit.

    public static String recordVideo(JSONObject objJSON) {
    

    
    String strReturn = Enum.Result.OK;
    

    
    try {
    
        fileName = objJSON.has("file_name") ? String.valueOf(objJSON.getString("file_name")) : "";
    
        videoPath = objJSON.has("video_path") ? String.valueOf(objJSON.getString("video_path")) : "";
    
    } catch (JSONException e) {
    
        ExceptionHandler.logException(e);
    
    }
    

    
    FFmpeg ffmpeg = FFmpeg.getInstance(ApplicationContext.get());
    
    try {
    
        ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
    

    
            @Override
    
            public void onStart() {}
    

    
            @Override
    
            public void onFailure() {}
    

    
            @Override
    
            public void onSuccess() {}
    

    
            @Override
    
            public void onFinish() {}
    
        });
    
    } catch (FFmpegNotSupportedException e) {
    
        // Handle if FFmpeg is not supported by device
    
    } catch (Exception e) {
    

    
    }
    
...

    These next lines are the relevant part of the LogCat, but I cannot figure out where the problem resides, maybe an out of memory problem ?

    Any help will be much appreciated.

    04-28 21:44:45.873 13743-13964/com.artandwords.thoughtoftheday A/libc: Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 13964 (AsyncTask #4)
    
04-28 21:44:45.973 144-144/? I/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
    
04-28 21:44:45.983 144-144/? I/DEBUG: Build fingerprint: 'asus/WW_epad/ME302C:4.3/JSS15Q/WW_epad-V5.0.21-20140701:user/release-keys'
    
04-28 21:44:45.983 144-144/? I/DEBUG: Revision: '0'
    
04-28 21:44:45.983 144-144/? I/DEBUG: pid: 13743, tid: 13964, name: AsyncTask #4  >>> com.artandwords.thoughtoftheday <<<
    
04-28 21:44:45.983 144-144/? I/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000000
    
04-28 21:44:46.003 144-144/? I/DEBUG:     eax 00000000  ebx 000000c6  ecx 00000000  edx 00000000
    
04-28 21:44:46.003 144-144/? I/DEBUG:     esi 00000e59  edi 00000000
    
04-28 21:44:46.003 144-144/? I/DEBUG:     xcs 00000073  xds 0000007b  xes 0000007b  xfs 00000043  xss 0000007b
    
04-28 21:44:46.003 144-144/? I/DEBUG:     eip 784ed378  ebp 2200ff0c  esp 2200fec4  flags 00210246
    
04-28 21:44:46.003 144-144/? I/DEBUG: backtrace:
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #00  pc 00087378  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #01  pc 00085d0e  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #02  pc 00073328  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #03  pc 0006f7ff  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #04  pc 0006f3bf  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #05  pc 000b92de  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #06  pc ffffffff  <unknown>
    
04-28 21:44:46.003 144-144/? I/DEBUG:     #07  pc 001445aa  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.013 144-144/? I/DEBUG: stack:
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436850  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436854  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436858  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b43685c  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436860  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436864  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436868  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b43686c  3822676c  /system/lib/arm/libc.so
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436870  7b436a98  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436874  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436878  7b4368c8  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b43687c  7b436a98  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436880  383003a0  /system/lib/arm/libdl.so
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436884  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436888  7b4368c8  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b43688c  785aa5ab  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.013 144-144/? I/DEBUG:     #07  7b436890  7b4368a0  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436894  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b436898  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b43689c  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368a0  7b4368c8  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368a4  7b436890  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368a8  785aa59d  /system/lib/libhoudini.so.3.4.7.44914
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368ac  7b436a98  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368b0  7b437930  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368b4  220001d0  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368b8  7b436a70  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368bc  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368c0  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368c4  00000000  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368c8  7b436a88  
    
04-28 21:44:46.013 144-144/? I/DEBUG:          7b4368cc  785f3141  /system/lib/libhoudini.so.3.4.7.44914
    

    

    
    --------- beginning of /dev/log/system
    
04-28 21:44:46.063 450-470/? I/BootReceiver: Copying /data/tombstones/tombstone_03 to DropBox (SYSTEM_TOMBSTONE)
    
04-28 21:44:46.063 450-13973/? W/ActivityManager:   Force finishing activity com.artandwords.thoughtoftheday/.activities.DisplayThoughtActivity
    
04-28 21:44:46.073 145-862/? E/IMGSRV: :0: PVRDRMOpen: TP3, ret = 75
    
04-28 21:44:46.093 450-13973/? E/JavaBinder: !!! FAILED BINDER TRANSACTION !!!
    
04-28 21:44:46.093 450-483/? W/InputDispatcher: channel '21edd9e8 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.main.MainActivity (server)' ~ Consumer closed input channel or an error occurred.  events=0x9
    
04-28 21:44:46.093 450-483/? E/InputDispatcher: channel '21edd9e8 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.main.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
    
04-28 21:44:46.093 155-13945/? W/TimedEventQueue: Event 25 was not found in the queue, already cancelled?
    
04-28 21:44:46.093 155-3134/? W/AudioFlinger: session id 324 not found for pid 155
    
04-28 21:44:46.103 450-450/? W/InputDispatcher: Attempted to unregister already unregistered input channel '21edd9e8 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.main.MainActivity (server)'
    
04-28 21:44:46.103 450-755/? I/WindowState: WIN DEATH: Window{21b33a28 u0 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.DisplayThoughtActivity}
    
04-28 21:44:46.103 450-13973/? W/ActivityManager: Exception thrown during pause
    
    android.os.TransactionTooLargeException
    
        at android.os.BinderProxy.transact(Native Method)
    
        at android.app.ApplicationThreadProxy.schedulePauseActivity(ApplicationThreadNative.java:642)
    
        at com.android.server.am.ActivityStack.startPausingLocked(ActivityStack.java:1007)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3905)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3837)
    
        at com.android.server.am.ActivityManagerService.handleAppCrashLocked(ActivityManagerService.java:8588)
    
        at com.android.server.am.ActivityManagerService.makeAppCrashingLocked(ActivityManagerService.java:8465)
    
        at com.android.server.am.ActivityManagerService.crashApplication(ActivityManagerService.java:9170)
    
        at com.android.server.am.ActivityManagerService.handleApplicationCrashInner(ActivityManagerService.java:8699)
    
        at com.android.server.am.NativeCrashListener$NativeCrashReporter.run(NativeCrashListener.java:86)
    
04-28 21:44:46.103 450-450/? I/WindowState: WIN DEATH: Window{21edd9e8 u0 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.main.MainActivity}
    
04-28 21:44:46.103 450-636/? I/WindowState: WIN DEATH: Window{21be0690 u0 com.artandwords.thoughtoftheday/com.artandwords.thoughtoftheday.activities.DisplayThoughtActivity}
    
04-28 21:44:46.113 450-13973/? I/WindowManager: computeScreenConfigurationLocked() Enter {1.15 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/?}
    
04-28 21:44:46.113 450-13973/? I/WindowManager: dw=1200, dh=1920
    
04-28 21:44:46.113 450-13973/? I/WindowManager: appWidth=1200, appHeight=1848
    
04-28 21:44:46.113 450-13973/? I/WindowManager: tempdm=DisplayMetrics{density=1.5, width=1200, height=1848, scaledDensity=1.5, xdpi=221.201, ydpi=220.591}
    
04-28 21:44:46.113 450-13973/? I/WindowManager: dm=DisplayMetrics{density=1.5, width=1200, height=1848, scaledDensity=1.5, xdpi=221.201, ydpi=220.591}, ro.product.device=ME302C
    
04-28 21:44:46.113 450-13973/? I/WindowManager: getConfigDisplayWidth=1200, getConfigDisplayHeight=1810
    
04-28 21:44:46.113 450-13973/? I/WindowManager: screenWidthDp=800, screenHeightDp=1206
    
04-28 21:44:46.113 450-13973/? I/WindowManager: computeScreenConfigurationLocked() Leave {1.15 ?mcc?mnc ?locale ?layoutDir sw800dp w800dp h1206dp 240dpi xlrg port ?uimode ?night finger -keyb/v/h -nav/h}
    
04-28 21:44:46.113 450-13973/? I/ActivityManager: Restarting because process died: ActivityRecord{21ab1f80 u0 com.artandwords.thoughtoftheday/.activities.main.MainActivity}
    
04-28 21:44:46.113 450-13973/? W/ActivityManager: Exception when starting activity com.artandwords.thoughtoftheday/.activities.main.MainActivity
    
    android.os.DeadObjectException
    
        at android.os.BinderProxy.transact(Native Method)
    
        at android.app.ApplicationThreadProxy.scheduleLaunchActivity(ApplicationThreadNative.java:730)
    
        at com.android.server.am.ActivityStack.realStartActivityLocked(ActivityStack.java:733)
    
        at com.android.server.am.ActivityStack.startSpecificActivityLocked(ActivityStack.java:840)
    
        at com.android.server.am.ActivityStack.resumeTopActivityLocked(ActivityStack.java:1790)
    
        at com.android.server.am.ActivityStack.resumeTopActivityLocked(ActivityStack.java:1449)
    
        at com.android.server.am.ActivityStack.startPausingLocked(ActivityStack.java:1058)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3905)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3837)
    
        at com.android.server.am.ActivityManagerService.handleAppCrashLocked(ActivityManagerService.java:8588)
    
        at com.android.server.am.ActivityManagerService.makeAppCrashingLocked(ActivityManagerService.java:8465)
    
        at com.android.server.am.ActivityManagerService.crashApplication(ActivityManagerService.java:9170)
    
        at com.android.server.am.ActivityManagerService.handleApplicationCrashInner(ActivityManagerService.java:8699)
    
        at com.android.server.am.NativeCrashListener$NativeCrashReporter.run(NativeCrashListener.java:86)
    
04-28 21:44:46.123 450-13973/? W/ContextImpl: Calling a method in the system process without a qualified user: android.app.ContextImpl.startService:1396 com.android.server.am.ActivityStack.sendActivityBroadcastLocked:4923 com.android.server.am.ActivityStack.removeActivityFromHistoryLocked:4089 com.android.server.am.ActivityStack.removeHistoryRecordsForAppLocked:4346 com.android.server.am.ActivityManagerService.handleAppDiedLocked:3163 
    
04-28 21:44:46.123 450-13973/? I/ActivityManager: Start proc com.artandwords.thoughtoftheday for activity com.artandwords.thoughtoftheday/.activities.main.MainActivity: pid=13975 
    
</unknown>

    Edit 1 :

    Still investigating and entered FFmpeg.java to the method loadBinary while debugging, which code I’ll paste below and the line making the crash is switch (CpuArchHelper.getCpuArch())

    @Override
    
public void loadBinary(FFmpegLoadBinaryResponseHandler ffmpegLoadBinaryResponseHandler) throws FFmpegNotSupportedException {
    
    String cpuArchNameFromAssets = null;
    
    switch (CpuArchHelper.getCpuArch()) {
    
        case x86:
    
            Log.i("Loading FFmpeg for x86 CPU");
    
            cpuArchNameFromAssets = "x86";
    
            break;
    
        case ARMv7:
    
            Log.i("Loading FFmpeg for armv7 CPU");
    
            cpuArchNameFromAssets = "armeabi-v7a";
    
            break;
    
        case NONE:
    
            throw new FFmpegNotSupportedException("Device not supported");
    
    }
    

    
    if (!TextUtils.isEmpty(cpuArchNameFromAssets)) {
    
        ffmpegLoadLibraryAsyncTask = new FFmpegLoadLibraryAsyncTask(context, cpuArchNameFromAssets, ffmpegLoadBinaryResponseHandler);
    
        ffmpegLoadLibraryAsyncTask.execute();
    
    } else {
    
        throw new FFmpegNotSupportedException("Device not supported");
    
    }
    
}

    I’ll keep on investigating...

    Edit 2 :

    Further debugging has just lead me to the exact line where app crashes, and it’s CpuArchHelper.java from FFmpeg library :

    The line causing the crash is the next :

    String archInfo = cpuNativeArchHelper.cpuArchFromJNI();

    and I cannot even go inside cpuArchFromJNI() with F7 as it just crashes.

    package com.github.hiteshsondhi88.libffmpeg;
    

    
import android.os.Build;
    

    
class CpuArchHelper {
    

    
    static CpuArch getCpuArch() {
    
        Log.d("Build.CPU_ABI : " + Build.CPU_ABI);
    
        // check if device is x86 or x86_64
    
        if (Build.CPU_ABI.equals(getx86CpuAbi()) || Build.CPU_ABI.equals(getx86_64CpuAbi())) {
    
            return CpuArch.x86;
    
        } else {
    
            // check if device is armeabi
    
            if (Build.CPU_ABI.equals(getArmeabiv7CpuAbi())) {
    
                ArmArchHelper cpuNativeArchHelper = new ArmArchHelper();
    
                String archInfo = cpuNativeArchHelper.cpuArchFromJNI();
    
                // check if device is arm v7
    
                if (cpuNativeArchHelper.isARM_v7_CPU(archInfo)) {
    
                    // check if device is neon
    
                    return CpuArch.ARMv7;
    
                }
    
                // check if device is arm64 which is supported by ARMV7
    
            } else if (Build.CPU_ABI.equals(getArm64CpuAbi())) {
    
                return CpuArch.ARMv7;
    
            }
    
        }
    
        return CpuArch.NONE;
    
    }
    

    
    static String getx86CpuAbi() {
    
        return "x86";
    
    }
    

    
    static String getx86_64CpuAbi() {
    
        return "x86_64";
    
    }
    

    
    static String getArm64CpuAbi() {
    
        return "arm64-v8a";
    
    }
    

    
    static String getArmeabiv7CpuAbi() {
    
        return "armeabi-v7a";
    
    }
    
}

    This is ArmArchHelper.java class :

    package com.github.hiteshsondhi88.libffmpeg;
    

    
class ArmArchHelper {
    
    static {
    
        System.loadLibrary("ARM_ARCH");
    
    }
    

    
    native String cpuArchFromJNI();
    

    
    boolean isARM_v7_CPU(String cpuInfoString) {
    
        return cpuInfoString.contains("v7");
    
    }
    

    
    boolean isNeonSupported(String cpuInfoString) {
    
        // check cpu arch for loading correct ffmpeg lib
    
        return cpuInfoString.contains("-neon");
    
    }
    

    
}

    Edit 3 :

    Reading carefully LogCat I’ve noticed there is a TransactionTooLarge Exception :

    04-28 21:44:46.103 450-13973/? W/ActivityManager: Exception thrown during pause
    
    android.os.TransactionTooLargeException
    
        at android.os.BinderProxy.transact(Native Method)
    
        at android.app.ApplicationThreadProxy.schedulePauseActivity(ApplicationThreadNative.java:642)
    
        at com.android.server.am.ActivityStack.startPausingLocked(ActivityStack.java:1007)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3905)
    
        at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:3837)
    
        at com.android.server.am.ActivityManagerService.handleAppCrashLocked(ActivityManagerService.java:8588)
    
        at com.android.server.am.ActivityManagerService.makeAppCrashingLocked(ActivityManagerService.java:8465)
    
        at com.android.server.am.ActivityManagerService.crashApplication(ActivityManagerService.java:9170)
    
        at com.android.server.am.ActivityManagerService.handleApplicationCrashInner(ActivityManagerService.java:8699)
    
        at com.android.server.am.NativeCrashListener$NativeCrashReporter.run(NativeCrashListener.java:86)

    Maybe this is what makes my app to crash, but I don’t know what to do with that, as it happens inside the FFMpeg library :s

    Edit 3 :

    As a note, I’ve tried in an old Android 4.2.2 (API 17) phone I also own and it’s working just fine, the video is generated without crashing.

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