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Autres articles (75)

  • 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 (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • 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.

Sur d’autres sites (6559)

  • fate : add one select filter test

    17 novembre 2013, par Vittorio Giovara
    fate : add one select filter test

    This test selects alternate frames from input.
    • [DH] tests/fate/filter-video.mak
    • [DH] tests/filtergraphs/select-alternate
    • [DH] tests/ref/fate/filter-select-alternate

  • How can I amplify volume with Audacity and ffmpeg ?

    18 octobre 2019, par Christos Hayward

    I have an MP4 recording where the video is present, but much too quiet. What I’ve done before is :

    ffmpeg -i master.mp4 -i amplified.wav -vcodec copy output.mp4

    I’ve tried various permutations, and the output ffmpeg builds is, as viewed by my browser, at the original overly quiet volume. If I load the Audacity-generated .wav, it plays as loudly as intended. (N.B. I have enabled clipping in Audacity, and I have not noticed it to fail at the amplifications I’ve tried with it.) However, the final result seems to retain unaltered the original audio track along in the video.

    How, with present software or other software, can I assign amplified.wav to be the new audio track to master.mp4 in output.mp4 ?

  • FFMPEG Amix filter volume is not constant

    24 mars 2017, par HernanLeandro

    I’m having an issue with FFMPEG and amix filter. Turns out that the volume ins’t constant, the generated audio starts with a lower volume and after each mixed sound ends the volume is higher and higher. I’m having a headache right now hahaha.

    I’m adding the sounds over base.mp3 that is input 0.

    Thank’s !

    Here’s an example of a command line :

    ffmpeg -i /Applications/MAMP/htdocs/public/audio/base.mp3
    
       -i /Applications/MAMP/htdocs/public/audio/n7.mp3
    
       -i /Applications/MAMP/htdocs/public/audio/n7.mp3
    
       -i /Applications/MAMP/htdocs/public/audio/n7.mp3
    
       -i /Applications/MAMP/htdocs/public/audio/n7.mp3
    
       -i /Applications/MAMP/htdocs/public/audio/n7.mp3
    
-filter_complex
    
 "[0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=30[tud0];
    
 [tud0]volume=1[aud0];
    
  [1:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=0.944[bud1];
    
 [bud1]adelay=1544[aud1];
    
 [2:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=0.215[bud2];
    
 [bud2]adelay=2488[aud2];
    
 [3:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=0.2[bud3];
    
 [bud3]adelay=2703[aud3];
    
 [4:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=0.209[bud4];
    
 [bud4]adelay=2903[aud4];
    
 [5:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono[bud5];
    
 [bud5]adelay=3112[aud5];
    
 [aud0][aud1][aud2][aud3][aud4][aud5]amix=inputs=6:duration=first:dropout_transition=0,dynaudnorm"
    
-map 0:a -c:a libmp3lame /Applications/MAMP/htdocs/public/server/temp/c685db3c87e801d049d13d702d9a0ddd.mp3

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