Recherche avancée

Médias (1)

Mot : - Tags -/MediaSPIP 0.2

Autres articles (69)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

Sur d’autres sites (6654)

  • FFmpeg cannot extract correct first frame - always extract the second frame [closed]

    21 octobre 2024, par Cai Yu

    I am on macos Ventura 13.2.1, on Macbook Pro M1Max.

    


    The video is number counting animation video. From 2 to 125. The number on first frame is 2. The number on last frame is 125. The number plus one on each frame. You can download the video here.

    


    NOTE that :
First, you hit space bar to play it in Finder, you can see the first frame of the video is number 2.

    


    Second, in professional Video editing software - davinci resolve, on the timeline, you can see the first frame is number 2.

    


    Now I try to use FFmpeg to extract the first frame of the video.
First Try :

    


    ffmpeg -i /Users/chris/Downloads/2to125.mov -vframes 1 /Users/chris/Downloads/1.png


    


    The output png image is number 3. So it's actually the second frame.

    


    Second try :

    


    ffmpeg -i /Users/chris/Downloads/2to125.mov -frames:v 1 /Users/chris/Downloads/1.png


    


    The output png image is still the second frame - the number 3.

    


    Third try :

    


    ffmpeg -i /Users/chris/Downloads/2to125.mov -vf "select=eq(n\,0)" -q:v 3 /Users/chris/Downloads/1.png


    


    The output image is sitll the wrong second frame.

    


    NOTE that :

    


    first : all these three method are from internet. And a lot of people voted correct answer for this question.

    


    second : all their output on my system is the incorrect second frame, not the first frame.

    


    I cannot find what's wrong. Hope friend here help me.

    


  • Unable to use Makefile on ffmpegthumbnailer setup files with Cygwin for Windows 10

    21 août 2018, par Cole Phiper

    I am currently trying to build the exe/binary files to support ffmpegthumbnailer on Windows 10. I read multiple posts on getting it to work, but none seem to satisfy my needs. I currently have ffmpegthumbnailer-2.2.0 stored at C :\ffmpegthumbnailer-2.2.0 I see a folder named CMakeFiles, dist, kffmpegthumbnailer, libffmpegthumbnailer, man, test and thunar files. When I run make in the directory, I receive

    User@User-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0/man
    
$ make
    
make: *** No targets specified and no makefile found.  Stop.

    How do I build/make the exec files, so that I can use the PATH variable to find ffmpegthumbnailer ?

    UPDATE 1 :
    I tried the automake command, but I received the message below

    $ automake
    
/cygdrive/c/RubyDevKit/mingw/bin/automake: /cygdrive/c/RubyDevKit/mingw/bin/automake-1.11: /bin/perl: bad interpreter: No such file or directory
    
/cygdrive/c/RubyDevKit/mingw/bin/automake: line 156: /cygdrive/c/RubyDevKit/mingw/bin/automake-1.11: No error

    UPDATE 2 :

    I ran cmake and received the message below.

    Coder@Coder-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build
    
$ cmake ../
    
-- Building for: Visual Studio 15 2017
    
-- The C compiler identification is MSVC 19.14.26428.1
    
-- The CXX compiler identification is MSVC 19.14.26428.1
    
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio2017/Professional/VC/Tools/MSVC/14.14.26428/bin/Hostx86/x86/cl.exe
    
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio2017/Professional/VC/Tools/MSVC/14.14.26428/bin/Hostx86/x86/cl.exe -- works
    
-- Detecting C compiler ABI info
    
-- Detecting C compiler ABI info - done
    
-- Detecting C compile features
    
-- Detecting C compile features - done
    
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studo/2017/Professional/VC/Tools/MSVC/14.14.26428/bin/Hostx86/x86/cl.exe
    
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studo/2017/Professional/VC/Tools/MSVC/14.14.26428/bin/Hostx86/x86/cl.exe -- works
    
-- Detecting CXX compiler ABI info
    
-- Detecting CXX compiler ABI info - done
    
-- Detecting CXX compile features
    
-- Detecting CXX compile features - done
    
-- Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
    
-- Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
    
-- Could NOT find PNG (missing: PNG_LIBRARY PNG_PNG_INCLUDE_DIR)
    
-- Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
    
CMake Error at C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmke:489 (message):
    
  pkg-config tool not found
    
Call Stack (most recent call first):
    
  C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmake:602 (_pkgcheck_modules_internal)
    
  CMakeLists.txt:58 (PKG_CHECK_MODULES)
    

    

    
CMake Error at C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmke:489 (message):
    
  pkg-config tool not found
    
Call Stack (most recent call first):
    
  C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmake:602 (_pkgcheck_modules_internal)
    
  CMakeLists.txt:59 (PKG_CHECK_MODULES)
    

    

    
CMake Error at C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmke:489 (message):
    
  pkg-config tool not found
    
Call Stack (most recent call first):
    
  C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmake:602 (_pkgcheck_modules_internal)
    
  CMakeLists.txt:60 (PKG_CHECK_MODULES)
    

    

    
CMake Error at C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmke:489 (message):
    
  pkg-config tool not found
    
Call Stack (most recent call first):
    
  C:/Program Files/CMake/share/cmake-3.12/Modules/FindPkgConfig.cmake:602 (_pkgcheck_modules_internal)
    
  CMakeLists.txt:61 (PKG_CHECK_MODULES)
    

    

    
--
    
-- CONFIGURATION SUMMARY
    
-- png support          : disabled
    
-- jpeg support         : disabled
    
-- gio support          : disabled
    
-- register thumbnailer : disabled
    
-- unittests            : enabled
    
-- debug mode           : disabled
    
CMake Error: The following variables are used in this project, but they are setto NOTFOUND.
    
Please set them or make sure they are set and tested correctly in the CMake fils:
    
AVCODEC_INCLUDE_DIR
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
AVCODEC_LIBRARY
    
    linked by target "libffmpegthumbnailer" in directory C:/ffmpegthumbnailer-22.0
    
AVFILTER_INCLUDE_DIR
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
AVFILTER_LIBRARY
    
    linked by target "libffmpegthumbnailer" in directory C:/ffmpegthumbnailer-22.0
    
AVFORMAT_INCLUDE_DIR
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
AVFORMAT_LIBRARY
    
    linked by target "libffmpegthumbnailer" in directory C:/ffmpegthumbnailer-22.0
    
AVUTIL_INCLUDE_DIR
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
   used as include directory in directory C:/ffmpegthumbnailer-2.2.0/test
    
AVUTIL_LIBRARY
    
    linked by target "libffmpegthumbnailer" in directory C:/ffmpegthumbnailer-22.0
    

    
-- Configuring incomplete, errors occurred!
    
See also "C:/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build/CMakeFiles/CMakeOuput.log".
    

    
Coder@Coder-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build
    
$

    UPDATE 3

    Coder@Coder-WIN10 ~
    
$ cd C:\ffmpegthumbnailer-2.2.0
    

    
Coder@Coder-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0
    
$ cd ffmpegthumbnailer_build
    

    
Coder@Coder-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build
    
$ cmake ../
    
-- The C compiler identification is GNU 7.3.0
    
-- The CXX compiler identification is GNU 7.3.0
    
CMake Warning at /usr/share/cmake-3.6.2/Modules/Platform/CYGWIN.cmake:15 (message):
    
  CMake no longer defines WIN32 on Cygwin!
    

    
  (1) If you are just trying to build this project, ignore this warning or
    
  quiet it by setting CMAKE_LEGACY_CYGWIN_WIN32=0 in your environment or in
    
  the CMake cache.  If later configuration or build errors occur then this
    
  project may have been written under the assumption that Cygwin is WIN32.
    
  In that case, set CMAKE_LEGACY_CYGWIN_WIN32=1 instead.
    

    
  (2) If you are developing this project, add the line
    

    
    set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required
    

    
  at the top of your top-level CMakeLists.txt file or set the minimum
    
  required version of CMake to 2.8.4 or higher.  Then teach your project to
    
  build on Cygwin without WIN32.
    
Call Stack (most recent call first):
    
  /usr/share/cmake-3.6.2/Modules/CMakeSystemSpecificInformation.cmake:36 (include)
    
  CMakeLists.txt:26 (PROJECT)
    

    

    
-- Check for working C compiler: /usr/bin/cc
    
-- Check for working C compiler: /usr/bin/cc -- works
    
-- Detecting C compiler ABI info
    
-- Detecting C compiler ABI info - done
    
-- Detecting C compile features
    
-- Detecting C compile features - done
    
-- Check for working CXX compiler: /usr/bin/c++.exe
    
-- Check for working CXX compiler: /usr/bin/c++.exe -- works
    
-- Detecting CXX compiler ABI info
    
-- Detecting CXX compiler ABI info - done
    
-- Detecting CXX compile features
    
-- Detecting CXX compile features - done
    
-- Found JPEG: /usr/lib/libjpeg.dll.a
    
-- Found ZLIB: /usr/lib/libz.dll.a (found version "1.2.11")
    
-- Found PNG: /usr/lib/libpng.dll.a (found version "1.6.34")
    
-- Found PkgConfig: /usr/bin/pkg-config.exe (found version "0.29.1")
    
-- Checking for module 'libavcodec'
    
--   No package 'libavcodec' found
    
CMake Error at /usr/share/cmake-3.6.2/Modules/FindPkgConfig.cmake:424 (message):
    
  A required package was not found
    
Call Stack (most recent call first):
    
  /usr/share/cmake-3.6.2/Modules/FindPkgConfig.cmake:597 (_pkg_check_modules_internal)
    
  CMakeLists.txt:58 (PKG_CHECK_MODULES)
    

    

    
-- Configuring incomplete, errors occurred!
    
See also "/cygdrive/c/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build/CMakeFiles/CMakeOutput.log".
    

    
Coder@Coder-WIN10 /cygdrive/c/ffmpegthumbnailer-2.2.0/ffmpegthumbnailer_build
    
$

  • dpxenc : enforce alignment requirement

    13 août 2014, par Christophe Gisquet
    dpxenc : enforce alignment requirement

    S268M-2003 specifies that each line start is aligned on a 4-byte boundary.
    

    Reviewed-by : Paul B Mahol <onemda@gmail.com>
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/dpxenc.c

Navigation