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• where is this wrong in ffmpeg installation and php configuration

  23 juillet 2015, par sonam Sharma

  hello all i have successfully installed ffmpeg to my computer i can check it by checking ffmpeg-version it returns something logical.

  which means the ffmpeg is running successfully on my pac but when i run this code by php i get error in ffmpeg loading

  <?php
  
   extension_loaded('ffmpeg') or die('Error in loading ffmpeg'); 
  
   // Determine the full path for our video
  
    $vid = realpath('./test/Sample.mp4');
  
  
  
   // Create the ffmpeg instance and then display the information about the video clip.
  
   $ffmpegInstance = new ffmpeg_movie($vid);
  
   echo "getDuration: " . $ffmpegInstance->getDuration() . "<br />".
  
    "getFrameCount: " . $ffmpegInstance->getFrameCount() . "<br />".
  
     "getFrameRate: " . $ffmpegInstance->getFrameRate() . "<br />".
  
     "getFilename: " . $ffmpegInstance->getFilename() . "<br />".
  
      "getComment: " . $ffmpegInstance->getComment() . "<br />".
  
     "getTitle: " . $ffmpegInstance->getTitle() . "<br />".
  
     "getAuthor: " . $ffmpegInstance->getAuthor() . "<br />".
  
          "getCopyright: " . $ffmpegInstance->getCopyright() . "<br />".
  
       "getArtist: " . $ffmpegInstance->getArtist() . "<br />".
  
       "getGenre: " . $ffmpegInstance->getGenre() . "<br />".
  
       "getTrackNumber: " . $ffmpegInstance->getTrackNumber() . "<br />".
  
      "getYear: " . $ffmpegInstance->getYear() . "<br />".
  
    "getFrameHeight: " . $ffmpegInstance->getFrameHeight() . "<br />". 
  
       "getAudioChannels: " . $ffmpegInstance->getAudioChannels() . "<br />".
  
     "hasAudio: " . $ffmpegInstance->hasAudio();
  
        ?>

  please tell me where i am doing wrong

• aacenc : implement Intensity Stereo encoding support

  2 juillet 2015, par Rostislav Pehlivanov

  aacenc : implement Intensity Stereo encoding support
  This commit implements intensity stereo coding support
  
  to the native aac encoder. This is a way to increase the efficiency
  
  of the encoder by zeroing the right channel’s spectral coefficients
  
  (in a channel pair) and rederiving them in the decoder using information
  
  from the scalefactor indices of special band types. This commit
  
  confomrs to the official ISO 13818-7 specifications, although due to
  
  their ambiguity certain deviations have been taken to ensure maximum
  
  sound quality. This commit has been extensively tested and has shown
  
  to not result in audiable audio artifacts unless in extreme cases.
  
  This commit also adds an option, aac_is, which has the value of
  
  0 by default. Intensity Stereo is part of the scalable aac profile
  
  and is thus non-default.
  The way IS coding works is that it rederives the right channel’s
  
  spectral coefficients from the left channel via the scalefactor
  
  index values left in the right channel. Since an entire band’s
  
  spectral coefficients do not need to be coded, the encoder’s
  
  efficiency jumps up and it unzeroes some high frequency values
  
  which it previously did not have enough bits to encode. That way
  
  less information is lost than the information lost by rederiving
  
  the spectral coefficients with some error. This is why the
  
  filesize of files encoded with IS do not decrease significantly.
  
  Users wishing that IS coding should reduce filesize are expected
  
  to reduce their encoding bitrates appropriately.
  This is V2 of the commit. The old version did not mark ms_mask as
  
  0 since M/S and IS coding are incompactible, which resulted in
  
  distortions with M/S coding enabled. This version also improves
  
  phase detection by measuring it for every spectral coefficient in
  
  the band and using a simple majority rule to determine whether the
  
  coefficients are in or out of phase. Also, the energy values per
  
  spectral coefficient were changed as to reflect the
  
  official specifications.
  Reviewed-by : Claudio Freire <klaussfreire@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/aaccoder.c
  • [DH] libavcodec/aacenc.c
  • [DH] libavcodec/aacenc.h

• Installing Opencv on mac with brew link error

  18 mars 2016, par Pieter Bosma

  I am having trouble installing openCV on mac os. ffmpeg was not installed, so I did :

  frew install ffmpeg

  Error : You must ’brew link x264 lame libvo-aacenc xvid’ before ffmpeg can be installed.

  So I did :

  brew link x264 lame libvo-aacenc xvid

  It keeps saying,
  /usr/local/lib/ is not writable.

  I already tried :

  sudo chown -R $USER /usr/local/lib

  still the same error. I am not familiar with Mac os, so any help is welcome !

  When I run :

  brew doctor

  I get the following :

  Please note that these warnings are just used to help the Homebrew maintainers
  with debugging if you file an issue. If everything you use Homebrew for is
  working fine : please don’t worry and just ignore them. Thanks !

  Warning: /usr/local/lib isn't writable.
  
  
  
  This can happen if you "sudo make install" software that isn't managed by
  
  by Homebrew. If a formula tries to write a file to this directory, the
  
  install will fail during the link step.
  
  
  
  You should probably `chown` /usr/local/lib
  
  
  
  Warning: /usr/local/lib/pkgconfig isn't writable.
  
  
  
  This can happen if you "sudo make install" software that isn't managed by
  
  by Homebrew. If a formula tries to write a file to this directory, the
  
  install will fail during the link step.
  
  
  
  You should probably `chown` /usr/local/lib/pkgconfig
  
  
  
  Warning: Broken symlinks were found. Remove them with `brew prune`:
  
    /usr/local/lib/libopencv_calib3d.2.4.dylib
  
    /usr/local/lib/libopencv_calib3d.dylib
  
    /usr/local/lib/libopencv_contrib.2.4.dylib
  
    /usr/local/lib/libopencv_contrib.dylib
  
    /usr/local/lib/libopencv_core.2.4.dylib
  
    /usr/local/lib/libopencv_core.dylib
  
    /usr/local/lib/libopencv_features2d.2.4.dylib
  
    /usr/local/lib/libopencv_features2d.dylib
  
    /usr/local/lib/libopencv_flann.2.4.dylib
  
    /usr/local/lib/libopencv_flann.dylib
  
    /usr/local/lib/libopencv_gpu.2.4.dylib
  
    /usr/local/lib/libopencv_gpu.dylib
  
    /usr/local/lib/libopencv_highgui.2.4.dylib
  
    /usr/local/lib/libopencv_highgui.dylib
  
    /usr/local/lib/libopencv_imgproc.2.4.dylib
  
    /usr/local/lib/libopencv_imgproc.dylib
  
    /usr/local/lib/libopencv_legacy.2.4.dylib
  
    /usr/local/lib/libopencv_legacy.dylib
  
    /usr/local/lib/libopencv_ml.2.4.dylib
  
    /usr/local/lib/libopencv_ml.dylib
  
    /usr/local/lib/libopencv_nonfree.2.4.dylib
  
    /usr/local/lib/libopencv_nonfree.dylib
  
    /usr/local/lib/libopencv_objdetect.2.4.dylib
  
    /usr/local/lib/libopencv_objdetect.dylib
  
    /usr/local/lib/libopencv_ocl.2.4.dylib
  
    /usr/local/lib/libopencv_ocl.dylib
  
    /usr/local/lib/libopencv_photo.2.4.dylib
  
    /usr/local/lib/libopencv_photo.dylib
  
    /usr/local/lib/libopencv_stitching.2.4.dylib
  
    /usr/local/lib/libopencv_stitching.dylib
  
    /usr/local/lib/libopencv_superres.2.4.dylib
  
    /usr/local/lib/libopencv_superres.dylib
  
    /usr/local/lib/libopencv_video.2.4.dylib
  
    /usr/local/lib/libopencv_video.dylib
  
    /usr/local/lib/libopencv_videostab.2.4.dylib
  
    /usr/local/lib/libopencv_videostab.dylib
  
  
  
  Warning: "config" scripts exist outside your system or Homebrew directories.
  
  `./configure` scripts often look for *-config scripts to determine if
  
  software packages are installed, and what additional flags to use when
  
  compiling and linking.
  
  
  
  Having additional scripts in your path can confuse software installed via
  
  Homebrew if the config script overrides a system or Homebrew provided
  
  script of the same name. We found the following "config" scripts:
  
  
  
    /opt/local/bin/curl-config
  
    /opt/local/bin/freetype-config
  
    /opt/local/bin/libpng-config
  
    /opt/local/bin/libpng16-config
  
    /opt/local/bin/ncurses5-config
  
    /opt/local/bin/ncursesw5-config
  
    /opt/local/bin/pkg-config
  
    /opt/local/bin/python2.7-config
  
    /opt/local/bin/sdl-config
  
    /opt/local/bin/xml2-config
  
    /opt/local/bin/xslt-config
  
    /Library/Frameworks/Python.framework/Versions/2.7/bin/python-config
  
    /Library/Frameworks/Python.framework/Versions/2.7/bin/python2-config
  
    /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config
  
  
  
  Warning: Your XQuartz (2.7.5) is outdated
  
  Please install XQuartz 2.7.7:
  
    https://xquartz.macosforge.org
  
  
  
  Warning: Python is installed at /Library/Frameworks/Python.framework
  
  
  
  Homebrew only supports building against the System-provided Python or a
  
  brewed Python. In particular, Pythons installed to /Library can interfere
  
  with other software installs.
  
  
  
  Warning: You have MacPorts or Fink installed:
  
    /opt/local/bin/port
  
  
  
  This can cause trouble. You don't have to uninstall them, but you may want to
  
  temporarily move them out of the way, e.g.
  
  
  
    sudo mv /opt/local ~/macports
  
  
  
  Warning: Unbrewed dylibs were found in /usr/local/lib.
  
  If you didn't put them there on purpose they could cause problems when
  
  building Homebrew formulae, and may need to be deleted.
  
  
  
  Unexpected dylibs:
  
      /usr/local/lib/libdc1394.22.dylib
  
      /usr/local/lib/libtcl8.6.dylib
  
      /usr/local/lib/libtk8.6.dylib
  
  
  
  Warning: Unbrewed header files were found in /usr/local/include.
  
  If you didn't put them there on purpose they could cause problems when
  
  building Homebrew formulae, and may need to be deleted.
  
  
  
  Unexpected header files:
  
      /usr/local/include/fakemysql.h
  
      /usr/local/include/fakepq.h
  
      /usr/local/include/fakesql.h
  
      /usr/local/include/itcl.h
  
      /usr/local/include/itcl2TclOO.h
  
      /usr/local/include/itclDecls.h
  
      /usr/local/include/itclInt.h
  
      /usr/local/include/itclIntDecls.h
  
      /usr/local/include/itclMigrate2TclCore.h
  
      /usr/local/include/itclTclIntStubsFcn.h
  
      /usr/local/include/mysqlStubs.h
  
      /usr/local/include/odbcStubs.h
  
      /usr/local/include/pqStubs.h
  
      /usr/local/include/tcl.h
  
      /usr/local/include/tclDecls.h
  
      /usr/local/include/tclOO.h
  
      /usr/local/include/tclOODecls.h
  
      /usr/local/include/tclPlatDecls.h
  
      /usr/local/include/tclThread.h
  
      /usr/local/include/tclTomMath.h
  
      /usr/local/include/tclTomMathDecls.h
  
      /usr/local/include/tdbc.h
  
      /usr/local/include/tdbcDecls.h
  
      /usr/local/include/tdbcInt.h
  
      /usr/local/include/tk.h
  
      /usr/local/include/tkDecls.h
  
      /usr/local/include/tkPlatDecls.h
  
  
  
  Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig.
  
  If you didn't put them there on purpose they could cause problems when
  
  building Homebrew formulae, and may need to be deleted.
  
  
  
  Unexpected .pc files:
  
      /usr/local/lib/pkgconfig/tcl.pc
  
      /usr/local/lib/pkgconfig/tk.pc
  
  
  
  Warning: Unbrewed static libraries were found in /usr/local/lib.
  
  If you didn't put them there on purpose they could cause problems when
  
  building Homebrew formulae, and may need to be deleted.
  
  
  
  Unexpected static libraries:
  
      /usr/local/lib/libtclstub8.6.a
  
      /usr/local/lib/libtkstub8.6.a
  
  
  
  Warning: You have unlinked kegs in your Cellar
  
  Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
  
  those kegs to fail to run properly once built. Run `brew link` on these:
  
  
  
      apple-gcc42
  
      eigen
  
      gcc
  
      gdbm
  
      gmp
  
      isl
  
      jpeg
  
      lame
  
      libmpc
  
      libvo-aacenc
  
      mpfr
  
      python
  
      x264
  
      xvid
  
  
  
  Warning: Some installed formula are missing dependencies.
  
  You should `brew install` the missing dependencies:
  
  
  
      brew install libxml2
  
  
  
  Run `brew missing` for more details.
  
  
  
  Warning: You have a non-Homebrew 'pkg-config' in your PATH:
  
    /opt/local/bin/pkg-config
  
  
  
  `./configure` may have problems finding brew-installed packages using
  
  this other pkg-config.