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  • 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 (...)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (8868)

  • Detecting video volume

    27 décembre 2016, par Johnathan Kanarek

    I’m streaming few RTMP streams through nginx and I want to check every few seconds what stream has the highest volume.
    Specifically these streams are of talking heads and I assume that usually only one of them is speaking at a time, and I’m trying to find which one.
    Since nginx can output hls (Apple http live streaming) I decided to check every few seconds the last segment of each stream using ffmpeg.
    Example :

    ffmpeg -f mp3 -i /my/path/camera67/123.ts -af "volumedetect" -f null /dev/null

    For some reason the max_volume is always zero (max_volume : 0.0 dB) and mean_volume seems meaningless regarding the volume.

    1. Do you have any idea why it’s always zero ?
    2. Is there a helpful way to understand mean_volume ?
    3. Can you think of a different tool that may give me the volume (e.g. mediainfo or ffprobe) ?

    I also tried :

    ffmpeg -f lavfi -i amovie=/my/path/camera67/123.ts,volumedetect

    This time I got :

    [mpegts @ 0x130bf40] start time for stream 1 is not set in estimate_timings_from_pts
    [mpegts @ 0x130bf40] Could not find codec parameters for stream 1 (Audio : aac ([15][0][0][0] / 0x000F), 0 channels, fltp) : unspecified sample rate
    Consider increasing the value for the ’analyzeduration’ and ’probesize’ options
    [Parsed_amovie_0 @ 0x130bcc0] No audio stream with index ’-1’ found
    [lavfi @ 0x130abc0] Error initializing filter ’amovie’ with args ’/my/path/camera67/123.ts’
    amovie=/my/path/camera67/123.ts,volumedetect : Invalid argument

    Any idea ?

    Thanks,
    T.

  • Adjust volume of both input audio files while concat using ffmpeg

    1er avril 2020, par Mozhgan Javadzadeh

    I am using the following command to concatenate(append second wav to end of first wav) two audio files (input can be any audio : mp3,wav etc) into one output.mp3 , and it works fine :

    



    ffmpeg -y -i first.wav -i second.wav -filter_complex "[0:0][1:0]concat=n=2:v=0:a=1[out]" -map "[out]" output.mp3


    



    but how can adjust volume for each of input audios separately so my output.mp3 will have two audio files with different volume that i set ? for example i want my output contains volume 0.5 for first audio and volume 1 for second audio.be aware that i don't want mix two audio files , Just concatenate two audio files into output with different volume.

    


  • Increase volume of one channel in 8channel .wav file ffmpeg

    19 février 2016, par Zwierzak

    I have 8-channel .wav file with sine wave in there. I would like to increase the volume of only 4th channel in this file. I don’t know how to do it though.

    ffmpeg -i input.wav -af "volume=1.5" output.wav

    This will increase volume for all 8 channels. How can i apply it only to 1 channel (4th one) but still maintain the 8-channel .wav file ?

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