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• Error installing pHash on Ubuntu

  7 octobre 2015, par Hyperion

  So I was trying to install the pHash libraries on Ubuntu. I’ve installed all the required packages running this command :

  apt-get install libavformat-dev libmpg123-dev libsamplerate-dev libsndfile-dev cimg-dev libavcodec-dev ffmpeg libswscale-dev

  Then I run ./configure and everything seems ok, I got this :

  francesco@francesco-VirtualBox:~$ cd '/home/francesco/Scrivania/pHash-0.9.6' 
  
  francesco@francesco-VirtualBox:~/Scrivania/pHash-0.9.6$ ./configure
  
  checking for a BSD-compatible install... /usr/bin/install -c
  
  checking whether build environment is sane... yes
  
  checking for a thread-safe mkdir -p... /bin/mkdir -p
  
  checking for gawk... no
  
  checking for mawk... mawk
  
  checking whether make sets $(MAKE)... yes
  
  checking for g++... g++
  
  checking whether the C++ compiler works... yes
  
  checking for C++ compiler default output file name... a.out
  
  checking for suffix of executables... 
  
  checking whether we are cross compiling... no
  
  checking for suffix of object files... o
  
  checking whether we are using the GNU C++ compiler... yes
  
  checking whether g++ accepts -g... yes
  
  checking for style of include used by make... GNU
  
  checking dependency style of g++... gcc3
  
  checking for gcc... gcc
  
  checking whether we are using the GNU C compiler... yes
  
  checking whether gcc accepts -g... yes
  
  checking for gcc option to accept ISO C89... none needed
  
  checking dependency style of gcc... gcc3
  
  checking for /etc/gentoo-release... no
  
  checking for /etc/redhat-release... no
  
  checking for /etc/slackware-version... no
  
  checking for /etc/debian_version... yes
  
  checking for /etc/SuSErelease... no
  
  checking build system type... x86_64-unknown-linux-gnu
  
  checking host system type... x86_64-unknown-linux-gnu
  
  checking for the pthreads library -lpthreads... no
  
  checking whether pthreads work without any flags... no
  
  checking whether pthreads work with -Kthread... no
  
  checking whether pthreads work with -kthread... no
  
  checking for the pthreads library -llthread... no
  
  checking whether pthreads work with -pthread... yes
  
  checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE
  
  checking if more special flags are required for pthreads... no
  
  checking how to run the C preprocessor... gcc -E
  
  checking for grep that handles long lines and -e... /bin/grep
  
  checking for egrep... /bin/grep -E
  
  checking for ANSI C header files... yes
  
  checking for sys/types.h... yes
  
  checking for sys/stat.h... yes
  
  checking for stdlib.h... yes
  
  checking for string.h... yes
  
  checking for memory.h... yes
  
  checking for strings.h... yes
  
  checking for inttypes.h... yes
  
  checking for stdint.h... yes
  
  checking for unistd.h... yes
  
  checking whether ln -s works... yes
  
  checking how to print strings... printf
  
  checking for a sed that does not truncate output... /bin/sed
  
  checking for fgrep... /bin/grep -F
  
  checking for ld used by gcc... /usr/bin/ld
  
  checking if the linker (/usr/bin/ld) is GNU ld... yes
  
  checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
  
  checking the name lister (/usr/bin/nm -B) interface... BSD nm
  
  checking the maximum length of command line arguments... 1572864
  
  checking whether the shell understands some XSI constructs... yes
  
  checking whether the shell understands "+="... yes
  
  checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop
  
  checking how to convert x86_64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop
  
  checking for /usr/bin/ld option to reload object files... -r
  
  checking for objdump... objdump
  
  checking how to recognize dependent libraries... pass_all
  
  checking for dlltool... no
  
  checking how to associate runtime and link libraries... printf %s\n
  
  checking for ar... ar
  
  checking for archiver @FILE support... @
  
  checking for strip... strip
  
  checking for ranlib... ranlib
  
  checking command to parse /usr/bin/nm -B output from gcc object... ok
  
  checking for sysroot... no
  
  checking for mt... mt
  
  checking if mt is a manifest tool... no
  
  checking for dlfcn.h... yes
  
  checking for objdir... .libs
  
  checking if gcc supports -fno-rtti -fno-exceptions... no
  
  checking for gcc option to produce PIC... -fPIC -DPIC
  
  checking if gcc PIC flag -fPIC -DPIC works... yes
  
  checking if gcc static flag -static works... yes
  
  checking if gcc supports -c -o file.o... yes
  
  checking if gcc supports -c -o file.o... (cached) yes
  
  checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
  
  checking whether -lc should be explicitly linked in... no
  
  checking dynamic linker characteristics... GNU/Linux ld.so
  
  checking how to hardcode library paths into programs... immediate
  
  checking whether stripping libraries is possible... yes
  
  checking if libtool supports shared libraries... yes
  
  checking whether to build shared libraries... yes
  
  checking whether to build static libraries... yes
  
  checking how to run the C++ preprocessor... g++ -E
  
  checking for ld used by g++... /usr/bin/ld -m elf_x86_64
  
  checking if the linker (/usr/bin/ld -m elf_x86_64) is GNU ld... yes
  
  checking whether the g++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
  
  checking for g++ option to produce PIC... -fPIC -DPIC
  
  checking if g++ PIC flag -fPIC -DPIC works... yes
  
  checking if g++ static flag -static works... yes
  
  checking if g++ supports -c -o file.o... yes
  
  checking if g++ supports -c -o file.o... (cached) yes
  
  checking whether the g++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
  
  checking dynamic linker characteristics... (cached) GNU/Linux ld.so
  
  checking how to hardcode library paths into programs... immediate
  
  
  
  *** Configuring image hash ***
  
  
  
  checking CImg.h usability... yes
  
  checking CImg.h presence... yes
  
  checking for CImg.h... yes
  
  
  
  *** Configuring video Hash ***
  
  
  
  checking whether FFmpeg is present... checking for avcodec_alloc_frame in -lavcodec... yes
  
  checking for av_log_set_level in -lavutil... yes
  
  checking for av_read_frame in -lavformat... yes
  
  checking for sws_getContext in -lswscale... yes
  
  
  
  *** Configuring audio hash ***
  
  
  
  checking whether sndfile lib is present... checking for sf_readf_float in -lsndfile... yes
  
  checking whether samplerate lib is present... checking for src_process in -lsamplerate... yes
  
  checking whether libmpg123 is present... checking for mpg123_init in -lmpg123... yes
  
  checking for png_create_read_struct in -lpng... yes
  
  checking for jpeg_read_header in -ljpeg... yes
  
  checking for fftw_plan_dft_r2c_1d in -lfftw3... no
  
  checking for size_t... yes
  
  checking for uint32_t... yes
  
  checking for uint8_t... yes
  
  checking for uint64_t... yes
  
  checking that generated files are newer than configure... done
  
  configure: creating ./config.status
  
  config.status: creating Makefile
  
  config.status: creating src/Makefile
  
  config.status: creating examples/Makefile
  
  config.status: creating pHash.pc
  
  config.status: creating bindings/Makefile
  
  config.status: creating bindings/java/Makefile
  
  config.status: creating config.h
  
  config.status: creating pHash-config.h
  
  config.status: pHash-config.h is unchanged
  
  config.status: executing depfiles commands
  
  config.status: executing libtool commands
  
  francesco@francesco-VirtualBox:~/Scrivania/pHash-0.9.6$ ^C
  
  francesco@francesco-VirtualBox:~/Scrivania/pHash-0.9.6$ 

  But when I try the make command I get these errors :

  francesco@francesco-VirtualBox:~/Scrivania/pHash-0.9.6$ make
  
  make  all-recursive
  
  make[1]: ingresso nella directory "/home/francesco/Scrivania/pHash-0.9.6"
  
  Making all in src
  
  make[2]: ingresso nella directory "/home/francesco/Scrivania/pHash-0.9.6/src"
  
  /bin/bash ../libtool --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I..   -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg  -O2 -ffast-math -O3 -MT pHash.lo -MD -MP -MF .deps/pHash.Tpo -c -o pHash.lo pHash.cpp
  
  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT pHash.lo -MD -MP -MF .deps/pHash.Tpo -c pHash.cpp  -fPIC -DPIC -o .libs/pHash.o
  
  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT pHash.lo -MD -MP -MF .deps/pHash.Tpo -c pHash.cpp -o pHash.o >/dev/null 2>&1
  
  mv -f .deps/pHash.Tpo .deps/pHash.Plo
  
  /bin/bash ../libtool --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I..   -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg  -O2 -ffast-math -O3 -MT audiophash.lo -MD -MP -MF .deps/audiophash.Tpo -c -o audiophash.lo audiophash.cpp
  
  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT audiophash.lo -MD -MP -MF .deps/audiophash.Tpo -c audiophash.cpp  -fPIC -DPIC -o .libs/audiophash.o
  
  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT audiophash.lo -MD -MP -MF .deps/audiophash.Tpo -c audiophash.cpp -o audiophash.o >/dev/null 2>&1
  
  mv -f .deps/audiophash.Tpo .deps/audiophash.Plo
  
  /bin/bash ../libtool --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I..   -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg  -O2 -ffast-math -O3 -MT ph_fft.lo -MD -MP -MF .deps/ph_fft.Tpo -c -o ph_fft.lo ph_fft.c
  
  libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT ph_fft.lo -MD -MP -MF .deps/ph_fft.Tpo -c ph_fft.c  -fPIC -DPIC -o .libs/ph_fft.o
  
  libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT ph_fft.lo -MD -MP -MF .deps/ph_fft.Tpo -c ph_fft.c -o ph_fft.o >/dev/null 2>&1
  
  mv -f .deps/ph_fft.Tpo .deps/ph_fft.Plo
  
  /bin/bash ../libtool --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I..   -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg  -O2 -ffast-math -O3 -MT cimgffmpeg.lo -MD -MP -MF .deps/cimgffmpeg.Tpo -c -o cimgffmpeg.lo cimgffmpeg.cpp
  
  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -pthread -I/usr/local/include -I/usr/include/ffmpeg -Dcimg_use_png -Dcimg_use_jpeg -O2 -ffast-math -O3 -MT cimgffmpeg.lo -MD -MP -MF .deps/cimgffmpeg.Tpo -c cimgffmpeg.cpp  -fPIC -DPIC -o .libs/cimgffmpeg.o
  
  cimgffmpeg.cpp: In function 'int ReadFrames(VFInfo*, cimg_library::CImgList<unsigned char="char">*, unsigned int, unsigned int)':
  
  cimgffmpeg.cpp:103:9: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    pFrame=avcodec_alloc_frame();
  
           ^
  
  cimgffmpeg.cpp:103:29: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    pFrame=avcodec_alloc_frame();
  
                               ^
  
  cimgffmpeg.cpp:108:29: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    AVFrame *pConvertedFrame = avcodec_alloc_frame();
  
                               ^
  
  cimgffmpeg.cpp:108:49: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    AVFrame *pConvertedFrame = avcodec_alloc_frame();
  
                                                   ^
  
  cimgffmpeg.cpp: In function 'int NextFrames(VFInfo*, cimg_library::CImgList<unsigned char="char">*)':
  
  cimgffmpeg.cpp:257:9: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    pFrame=avcodec_alloc_frame();
  
           ^
  
  cimgffmpeg.cpp:257:29: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    pFrame=avcodec_alloc_frame();
  
                               ^
  
  cimgffmpeg.cpp:260:29: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    AVFrame *pConvertedFrame = avcodec_alloc_frame();
  
                               ^
  
  cimgffmpeg.cpp:260:49: warning: 'AVFrame* avcodec_alloc_frame()' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3195) [-Wdeprecated-declarations]
  
    AVFrame *pConvertedFrame = avcodec_alloc_frame();
  
                                                   ^
  
  cimgffmpeg.cpp: In function 'float fps(const char*)':
  
  cimgffmpeg.cpp:434:47: error: 'AVStream' has no member named 'r_frame_rate'
  
    int num = (pFormatCtx->streams[videoStream]->r_frame_rate).num;
  
                                                 ^
  
  cimgffmpeg.cpp:435:47: error: 'AVStream' has no member named 'r_frame_rate'
  
    int den = (pFormatCtx->streams[videoStream]->r_frame_rate).den;
  
                                                 ^
  
  Makefile:388: set di istruzioni per l'obiettivo "cimgffmpeg.lo" non riuscito
  
  make[2]: *** [cimgffmpeg.lo] Errore 1
  
  make[2]: uscita dalla directory "/home/francesco/Scrivania/pHash-0.9.6/src"
  
  Makefile:419: set di istruzioni per l'obiettivo "all-recursive" non riuscito
  
  make[1]: *** [all-recursive] Errore 1
  
  make[1]: uscita dalla directory "/home/francesco/Scrivania/pHash-0.9.6"
  
  Makefile:298: set di istruzioni per l'obiettivo "all" non riuscito
  
  make: *** [all] Errore 2
  
  francesco@francesco-VirtualBox:~/Scrivania/pHash-0.9.6$ 
  
  </unsigned></unsigned>

  Some can help me to understamd what’s wrong ?

• libav gives audio duration as negative

  5 novembre 2016, par Amit

  I am trying to make a simple av player, and in some cases I am getting values correctly as below :

  checking /media/timecapsule/Music/02 Baawre.mp3
  
  [mp3 @ 0x7f0698005660] Skipping 0 bytes of junk at 2102699.
  
  dur is 4396400640
  
  duration is 311

  However, in other places, I am getting negative durations :

  checking /media/timecapsule/Music/01 Just Chill.mp3
  
  [mp3 @ 0x7f0694005f20] Skipping 0 bytes of junk at 1318922.
  
  dur is -9223372036854775808
  
  duration is -653583619391

  I am not sure what’s causing the duration to end up negative only in some audio files. Any ideas to where I might be wrong are welcome !

  Source code here https://github.com/heroic/musika/blob/master/player/library.c

• Attempting to Process.Start("ffmpeg.exe") ; unhandled exception [duplicate]

  7 janvier 2016, par hallwayRaptor

  This question already has an answer here :

  • Can Process.Start() take the system PATH into account ?
    
    7 answers
    

  I’m attempting to create a Windows Forms Application that will

  Process.Start("ffmpeg.exe");

  I’ve added the path (C :\Program Files (x86)\ffmpeg\bin) in the environment variables in Windows, and I can launch ffmpeg from anywhere in the CMD prompt with just ffmpeg or ffmpeg.exe.

  When I change the line to open something else that I’ve added to the environment variables manually such as Livestreamer the application launches no problem.

  It’s driving me crazy trying to figure out why this particular executable won’t launch when others that have been added the exact same way launch without problem.

  An unhandled exception of type ’System.ComponentModel.Win32Exception’
  occurred in System.dll