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  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    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 (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (10812)

  • FFMPEG concat leaves audio gapes between clips

    14 novembre 2022, par GotCubes

    I'm writing a python script that uses subprocess to invoke FFMPEG, not using pyffmpeg.

    



    My script generates a variable number of MP4 files using the AAC audio codec, and concatenates them together using FFMPEG. Here is how I'm constructing each clip :

    



    ffmpeg -loop 1 -i image.jpg -i recording.mp3 -tune stillimage -c:a aac -b:a 256k -shortest clip.mp4


    



    The command I'm using to concatenate them is :

    



    ffmpeg -f concat -i clip_names.txt -c copy video_raw.mp4


    



    I then take that resulting video, and mix a looping audio track over it, and adjust the volume. (Sorry for the awful formatting)

    



    ffmpeg -i video_raw -filter_complex
                 "amovie=Tracks/Breaktime.mp3:loop=0,
                  volume=0.1,
                  asetpts=N/SR/TB[aud];
                  [0:a][aud]amix[a]"
-map 0:v -map [a] -b:a 256k -shortest final_video.mp4


    



    These commands seem to work as I intend them to. When I play the resulting MP4 from my local machine, everything plays without issue.

    



    However, I uploaded the video to YouTube, and ran into issues. When the video is played from YouTube, there is about a second of silence at every timestamp where two clips were concatenated, before the next clip begins. I've tried this from Chrome, IE, and Firefox, all with the same issues.

    



    Based on what I've looked into so far, I think it could be an issue with how the priming samples of each individual clip are handled. I'm not obligated to keep using MP4 or AAC, so if using a different audio/video codec would work better, feel free to suggest !

    



    Is there some type of manipulation I can do in FFMPEG to get rid of the priming samples, or somehow process them differently ? In the end, I'm looking for each clip to play back to back without the delay that the concat operation seems to insert. Thank you !

    


  • timeshift Jumps in Live Streaming HLS Playback

    8 avril 2024, par matin

    some times in live streaming with hls (h264) client show a jump back in time shift
but index.m3u8 and playlist.m3u8 is ok and segments are correctly generated
I see this problem in our player and hls demo too
is there any thing related too transcoding and ffmpeg cause or prevent this problem

    


  • How to decode an MPEG Dash Widevine

    5 janvier 2016, par Martijn

    I have a video stream that I’d like to save to disk so I can play this back at a later time when I don’t have an internet connection at my disposal.

    The stream is a MPEG Dash Stream that uses Common Encryption, PlayReady, Widevine or Marlin.

    Is this possible in language like Go or NodeJS ?
    Could this be done using a command line utility like ffmpeg ?

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