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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

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  • Why Do Some of the Codecs in FFMPEG's Supported Codec List Show "encoders :" or "decoders :" in Parenthesis ?

    4 mai 2020, par spaceman

    If you open the Command Prompt, and run ffmpeg -codecs,
    
you will get a long list of Codecs that FFMPEG supports.

    



    Here's a small sample of the list :

    



     DEV.L. h261                 H.261
 DEV.L. h263                 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2
 D.V.L. h263i                Intel H.263
 DEV.L. h263p                H.263+ / H.263-1998 / H.263 version 2
 DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (encoders: libx264 libx264rgb)
 D.V.LS hevc                 H.265 / HEVC


    



    Now If you briefly go over the whole list,
    
you see that most Codecs in this list appear with their Name and Description,
    
but some of the Codecs also include parenthesis in the Description, and in the parenthesis,
    
they specify "encoders :" or "decoders :".

    



    For example :

    



    1)

    



     DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (encoders: libx264 libx264rgb)


    



    2)

    



     DEVILS jpeg2000             JPEG 2000 (decoders: jpeg2000 libopenjpeg) (encoders: jpeg2000 libopenjpeg)


    



    3)

    



     DEV.L. msmpeg4v3            MPEG-4 part 2 Microsoft variant version 3 (decoders: msmpeg4) (encoders: msmpeg4)


    



    4)

    



     DEA.L. aac                  AAC (Advanced Audio Coding) (encoders: aac libvo_aacenc)


    



    5)

    



     DEA.L. amr_nb               AMR-NB (Adaptive Multi-Rate NarrowBand) (decoders: amrnb libopencore_amrnb) (encoders: libopencore_amrnb)
 DEA.L. amr_wb               AMR-WB (Adaptive Multi-Rate WideBand) (decoders: amrwb libopencore_amrwb) (encoders: libvo_amrwbenc)


    



    My question :

    



    Why do some Codecs have those parenthesis, specifying Encoders/Decoders,
    
while other (in fact : most) codecs don't have these parenthesis ?

    


  • ffmpeg show wrong with/height of video

    6 mai 2020, par boygiandi

    I have this video : https://media.gostream.co/uploads/gostream/9wkBeGM7lOfxT902V86hzI22Baj2/23-4-2020/videos/263a34c5a2fe61b33fe17e090893c04e-1587640618504_fs.mp4

    



    When I play it on Google Chrome, it's vertical video. But when I check with ffmpeg

    



    ffmpeg -i "https://media.gostream.co/uploads/gostream/9wkBeGM7lOfxT902V86hzI22Baj2/23-4-2020/videos/263a34c5a2fe61b33fe17e090893c04e-1587640618504_fs.mp4"


    



    It show video dimensions are 1080x1080

    



    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'a.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.35.101
  Duration: 00:00:39.51, start: 0.000000, bitrate: 1577 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x1080 [SAR 9:16 DAR 9:16], 1464 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
At least one output file must be specified


    



    And when I livestream this video to Facebook, it scaled vertical video into square form : https://imgur.com/a/A8dQ7j7

    



    How can I correct video size when livestream ?

    


  • FFMPEG show audio frequency waves with border

    13 juillet 2020, par Nikhil Solanki

    I am trying to generate sine waves or audio frequency like this using this command :

    


    ffmpeg -i combine2.mp4 -i image1.png -i song.mp3 -t 20 -filter_complex "[0]split=2[color][alpha]; [color]crop=iw/2:ih:0:0[color]; [alpha]crop=iw/2:ih:iw/2:ih[alpha]; [color][alpha]alphamerge[v1];
[1]scale=540:960, setsar=1[v2];
[2]showfreqs=s=540x100:mode=line:ascale=sqrt:colors=white|red[v3];
[v2][v3] overlay=main_w-overlay_w:main_h-overlay_h-10[v4];
[v4][v1] overlay=1" output_video2.mp4 -y


    


    This command shows frequency of audio with white colour only and also its not smooth as above image. So, how can I generate waves like above image smooth and bordered ?

    


    Output video :
screenshot

    


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