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  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • 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 (...)

Sur d’autres sites (6038)

  • How can I convert a mp4 into an ogv with ffmpeg ? I am getting a "segmentation fault"

    8 mars 2020, par xrainbowuk

    I am trying to use ffmpeg to convert a mp4 video into an ogv and a webm. I am using a Mac and this is what I am putting into the terminal :

    ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora -codec:a libvorbis -f ogv output.ogv

    This is what I am getting in response :

       ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
     built with Apple clang version 11.0.0 (clang-1100.0.33.17)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
     libavutil      56. 31.100 / 56. 31.100
     libavcodec     58. 54.100 / 58. 54.100
     libavformat    58. 29.100 / 58. 29.100
     libavdevice    58.  8.100 / 58.  8.100
     libavfilter     7. 57.100 /  7. 57.100
     libavresample   4.  0.  0 /  4.  0.  0
     libswscale      5.  5.100 /  5.  5.100
     libswresample   3.  5.100 /  3.  5.100
     libpostproc    55.  5.100 / 55.  5.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Hands-typing-(mobile-1080p-loop) copy.mp4':
     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: mp42mp41
       creation_time   : 2020-03-04T20:14:21.000000Z
     Duration: 00:00:21.18, start: 0.000000, bitrate: 8201 kb/s
       Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 8085 kb/s, 30 fps, 30 tbr, 30k tbn, 60k tbc (default)
       Metadata:
         creation_time   : 2020-03-04T20:14:21.000000Z
         handler_name    : ?Mainconcept Video Media Handler
         encoder         : AVC Coding
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)
       Metadata:
         creation_time   : 2020-03-04T20:14:21.000000Z
         handler_name    : #Mainconcept MP4 Sound Media Handler
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 (native) -> theora (libtheora))
     Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
    Press [q] to stop, [?] for help
    zsh: segmentation fault  ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora   -f

    I have also tried this, which doesn’t work :

    ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora -qscale:v 3 -codec:a libvorbis \
     -qscale:a 3 -f ogv output.ogv

    I am struggling to find the answer to my question. Especially as there are so many posts about "segmentation faults".

    Any help is very much appreciated.

  • avformat/movenc : Check pal_size before use

    29 mai 2021, par Michael Niedermayer
    avformat/movenc : Check pal_size before use
    

    Fixes : assertion failure
    Fixes : out of array read
    Fixes : Ticket8190
    Fixes : CVE-2020-22015

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>

    • [DH] libavformat/movenc.c
  • Why does javaFx run converted mp4 but not original ?

    20 février 2020, par brat

    Simply put, I have this issue where I have a mp4 file with a video. If I run it directly in the code posted here, the window opens but its white/blank. No movie showing.
    But if I run the original movie through ffmpeg it works.

    ffmpeg -i original.mp4 -s hd720 converted.mp4

    Note that Im converting from mp4 to mp4, I just change the size to hd720.
    So, the question is, why do I need to do that ?

    My code :

    package mypack;

    import javafx.application.Application;
    import javafx.scene.Group;
    import javafx.scene.Scene;
    import javafx.scene.layout.BorderPane;
    import javafx.scene.media.Media;
    import javafx.scene.media.MediaPlayer;
    import javafx.scene.media.MediaView;
    import javafx.stage.Stage;

    public class MyPlayer extends Application{

       public static void main(String[] args) {
           launch(args);
       }


       public void start(Stage primaryStage) throws Exception {
           BorderPane content = new BorderPane();

            Scene scene = new Scene(content, 540, 209);
            primaryStage.setScene(scene);
            primaryStage.setScene(scene);

            primaryStage.setTitle("Hello Media");

            String source;
            source = "file:///C:/Users/Noob/Desktop/Movies/original.mp4";
    //       source = "file:///C:/Users/Noob/Desktop/Movies/converted.mp4";


            Media media = new Media(source);

            MediaPlayer mediaPlayer = new MediaPlayer(media);
            mediaPlayer.setAutoPlay(true);

            MediaView mediaView = new MediaView(mediaPlayer);
            ((BorderPane) scene.getRoot()).getChildren().add(mediaView);
            primaryStage.show();

       }

    }

    For those audio/video afficionados/ffmpeg pros out there. This is what gets output from the original.

    ffprobe -i original.mp4

    ffprobe version 4.2.2 Copyright (c) 2007-2019 the FFmpeg developers
     built with gcc 9.2.1 (GCC) 20200122
     configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
     libavutil      56. 31.100 / 56. 31.100
     libavcodec     58. 54.100 / 58. 54.100
     libavformat    58. 29.100 / 58. 29.100
     libavdevice    58.  8.100 / 58.  8.100
     libavfilter     7. 57.100 /  7. 57.100
     libswscale      5.  5.100 /  5.  5.100
     libswresample   3.  5.100 /  3.  5.100
     libpostproc    55.  5.100 / 55.  5.100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0000029bc02bc540] st: 0 edit list: 1 Missing key frame while searching for timestamp: 0
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0000029bc02bc540] st: 0 edit list 1 Cannot find an index entry before timestamp: 0.
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'original.mp4':
     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: mp42mp41
       creation_time   : 2020-02-18T17:09:21.000000Z
     Duration: 00:00:22.56, start: 0.000000, bitrate: 1631 kb/s
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 1624 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc (default)
       Metadata:
         creation_time   : 2020-02-18T17:09:21.000000Z
         handler_name    : Mainconcept MP4 Video Media Handler
         encoder         : AVC Coding

    Could it have to do with size ? To big ? Since it sayes 3840x2160 in the original ? And Im making it smaller with hd720 ?
    If so, I would expect at least a corner of the movie showing, instead of a totally blank window.
    Im new at this, so if you also give some good link to ffmpeg (excluding official manpages) and/or a good tutorial/info page on video formatting pointed towards beginners it would be much appreciated. My understanding this far is there are containers which hold streams and each stream can have different codecs depending on the container.