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Autres articles (37)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (6759)

  • Museum of Multimedia Software, Part 1

    14 août 2010, par Multimedia Mike — Software Museum

    Many years ago, I found a boneyard of old software, much of it related to the creation and processing of multimedia. I was permitted to liberate anything of my choosing from this cache. This is the same pile where I found this Apple QuickTime format spec as well as this perfect form factor floppy disc box. So I have been sitting on the stuff for awhile.

    I thought I might get the chance to study it a bit more closely one day. But now I’m interested in getting rid of it. Before I do, it’s more or less traditional for me to photograph it and post it on one blog or another. Also, if you know of any software collection groups who would be interested in taking this stuff off my hands, do let me know.

    As usual, click a picture for a much larger image.

    Paracomp FilmMaker
    This is easily the most distinctive piece in this collection and it’s easy to see why— the software is packaged in a film cannister. Still sealed, and I don’t have a good reason to open it now.



    "The Professional Animation/Presentation Program for the Macintosh." No copyright date on the packaging, though the front does mention a 1990 award. System requirements : Mac OS 6.0.5, 5 MB RAM, 32-bit QuickDraw, math coprocessor.

    Strata VideoShop
    Version 4.5 (and not for resale), still shrink-wrapped. "The Digital Video Editor for Creative Professionals."



    System requirements : PowerMac with 5 MB RAM (8 MB recommended), Mac OS 7.5.

    BeatWare e-Picture
    "The Professional’s Choice for Designing Animated Web Graphics." Claims a best of show award for 1999 MacWorld New York Expo.



    System requirements : PowerMac with Mac OS 8, 32MB RAM, 10 MB of HD space and a 256-color adapter.

    BeatWare eZ-Motion
    Another offering from BeatWare. "The fastest and easiest way to create animations and graphics for the Web."



    This one is for either Mac or Windows. 32 MB RAM and 25 MB HD space required. Works with Mac OS 8.5, 8.6, or 9.0, or Windows 98, NT, or 2000.

    Much more to come...

  • 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
    $