Recherche avancée

Médias (0)

Mot : - Tags -/signalement

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (107)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (9556)

  • ffmpeg-python outputs black screen when trying to save as mp4

    3 mars 2023, par Saya

    This is my code. I am trying to make a video out of all pictures in the pics2 directory using ffmpeg.

    


    import subprocess

command = 'ffmpeg -framerate 1 -i "pics2/Image%02d.png" -r 1 -vcodec libx264 -s 1280x720 -pix_fmt yuv420p Output.mp4'
p = subprocess.call(command, shell=True)


    


    This saves an Output.mp4 successfully but the video has no frames (It is completely black)

    


    How do I solve this ?

    


  • ffmpeg says "No JPEG data found in image" when reading image paths from Linux pipe

    18 septembre 2021, par user16945608

    I'm trying to convert a set of pictures into a video, and I want to read the file paths of the pictures from the pipe. The command I would like to run looks like this :

    


    find dir/*.JPG | sort | ffmpeg -f image2pipe -r 1 -vcodec mjpeg -s 6000x4000 -pix_fmt yuvj422p -i - -vcodec libx264 -s 1080x720 -r 20 -pix_fmt yuv420p out.mkv

    


    But I keep obtaining the No JPEG data found in image error. Here is the full log :

    


    Input #0, image2pipe, from 'pipe:':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: mjpeg, yuvj422p(bt470bg/unknown/unknown), 6000x4000, 1 fps, 1 tbr, 1 tbn, 1 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
[mjpeg @ 0x558e98cd7300] No JPEG data found in image
Error while decoding stream #0:0: Invalid data found when processing input
[swscaler @ 0x558e98ce9440] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x558e98cdaac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x558e98cdaac0] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x558e98cdaac0] 264 - core 161 r3039 544c61f - H.264/MPEG-4 AVC codec - Copyleft
2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=20 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'out.mkv':
  Metadata:
    encoder         : Lavf58.76.100
  Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 1080x720, q=2-31, 20 fps, 1k tbn
    Metadata:
      encoder         : Lavc58.134.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!


    


    The pictures are in the following format (with mediainfo) and the filenames are in the form DSC_1234.JPG :

    


    Format                                   : JPEG
Video
Format                                   : JPEG
Width                                    : 6 000 pixels
Height                                   : 4 000 pixels
Display aspect ratio                     : 3:2
Color space                              : YUV
Chroma subsampling                       : 4:2:2
Bit depth                                : 8 bits
Compression mode                         : Lossy


    


    Also, I would like to avoid using a solution without piping the paths (with -f image2 -i DSC_%04d.JPG for example). Do you have any idea what's happening ?

    


  • FFMPEG facing issue while compiling common.mak file

    9 juin 2016, par sumit singh

    I am compiling the ffmpeg library i am facing some issues while compiling this.

    I follow the steps of compilation form here.But i am failed to compile.
    The issues are as below.

    WARNING: /home/sumit/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
    
libavcodec/bsf_list.c is unchanged
    
libavformat/protocol_list.c is unchanged
    
common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
    
common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
    
common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
    
sumit@sumit-H81M-S:~/android-ndk-r10e/sources/ffmpeg$

    here is my build_android.sh file-

    #!/bin/bash
    

    
NDK=$HOME/android-ndk-r10e
    

    
SYSROOT=$NDK/platforms/android-19/arch-arm/
    

    
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
    

    
function build_one
    

    
{
    
./configure --prefix=$PREFIX --enable-shared --disable-static --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --disable-doc --disable-symver --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- --target-os=linux --arch=arm --enable-cross-compile --sysroot=$SYSROOT --extra-cflags="-Os -fpic $ADDI_CFLAGS" --extra-ldflags="$ADDI_LDFLAGS" 
    
$ADDITIONAL_CONFIGURE_FLAG
    
make clean
    
make
    
make install
    
}
    

    
CPU=arm
    

    
PREFIX=$(pwd)/android/$CPU 
    

    
ADDI_CFLAGS="-marm"
    

    
build_one

    common.mak-

    #
    
# common bits used by all libraries
    
#
    

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

    
DEFAULT_YASMD=.dbg
    

    
ifeq ($(DBG),1)
    
YASMD=$(DEFAULT_YASMD)
    
else
    
YASMD=
    
endif
    

    
ifndef SUBDIR
    

    
ifndef V
    
Q      = @
    
ECHO   = printf "$(1)\t%s\n" $(2)
    
BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS YASM AR LD STRIP CP WINDRES
    
SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM 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)
    
YASMFLAGS  += $(IFLAGS:%=%/) -Pconfig.asm
    

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

    
define COMPILE
    
       $(call $(1)DEP,$(1))
    
       $($(1)) $($(1)FLAGS) $($(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_HOSTC = $(call COMPILE,HOSTCC)
    

    
%.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)
    

    
%.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"' >$@
    

    
%.ver: %.v
    
    $(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ | sed -e 's/:/:\
    
/' -e 's/; /;\
    
/g' > $@
    

    
%.c %.h: 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)/arch.mak
    

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

    
LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
    
FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
    

    
OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
    
SLIBOBJS  := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
    
TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
    
TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(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))
    
checkheaders: $(HOBJS)
    
.SECONDARY:   $(HOBJS:.o=.c)
    

    
alltools: $(TOOLS)
    

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

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

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

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

    
CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ver-sol2 *.ho *.gcno *.gcda *$(DEFAULT_YASMD).asm
    
DISTCLEANSUFFIXES = *.pc
    
LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
    

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

    
$(eval $(RULES))
    

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

Navigation