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  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (12994)

  • How to convert webm/mp4 file to mp3 with ffmpeg in a script (pycharm) ?

    27 mai 2022, par Das Typ

    I'm working on a YouTube-Downloader project and I'm having issues with my audio files.
My code uses pytube to download the audio from a video.

    


    The problem is that the downloaded audio file is either a .webm or a .mp4 file, which I'd like to convert to a .mp3 file.
Is there a way to read the filetype (webm/mp4) first and then run a code that converts it to a mp3 file ?

    


    I'd like to run it as a script in pycharm. Not as a command in the console.

    


    Thanks for your answers.

    


    Das Typ

    


  • Trim with ffmpeg without re-encoding gives issues on the trimming point

    3 mai 2022, par Oleg Merkulov

    I have a video file with following parameters :

    


    Container: mp4
Video: h264
Audio: AAC
Duration: 00:29:38.03


    


    I need to extract 2 parts from it and merge it into one video. I want to keep the quality and make the operation as fast as possible. Thus -> I don't want to re-encode.

    


    I'm using the following :

    


    ffmpeg -y -ss 00:01:00 -to 00:03:00 -i 30.mp4 -c copy part-1.mp4
ffmpeg -y -ss 00:21:00 -to 00:29:00 -i 30.mp4 -c copy part-2.mp4
ffmpeg -y -f concat -safe 0 -i parts.txt -c copy merged.mp4
parts.txt:
file 'part-1.mp4'
file 'part-2.mp4'


    


    the output has 103 warnings like that :

    


    [mp4 @ 0x7fa91d707e40] Non-monotonous DTS in output stream 0:1; previous: 5759491, current: 5719904; changing to 5759492. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7fa91d707e40] Non-monotonous DTS in output stream 0:0; previous: 3598631, current: 3574391; changing to 3598632. This may result in incorrect timestamps in the output file.


    


    merged.mp4 has an issue on 00:02:00, right after the cut.
The audio is not in sync with video for around 5 seconds and then after that it goes perfectly.

    


    What can cause such an issue ? Is there is a way to trim without losing quality ?

    


  • Cutting of an video by timestamps from a subtitle ?

    7 janvier 2018, par zick

    I have a subtitle script , I copied the timestamps from that subtitle into text file.From those timestamps I want to modify the original video , cutting of pieces from that original video.I’m not interested on the parts that I’m cutting of , I only care of the remains.I’m seeking the pauses between the subtitle.

    Here are the first 20 timestamps.I’m interested in the pauses between the lines , 1 and 2 , 2 and 3 , 3 and 4 and so on.
    ffmpeg commands to cut or copy is only outputing the result of those timestamps but is not changing the original video.That is what I want to edit that video by deliting the parts between those timestamps.Is it possible ?

    1.00:00:45,366 —> 00:00:47,499

    2.00:00:47,500 —> 00:00:51,165

    3.00:00:51,166 —> 00:00:56,132

    4.00:01:47,000 —> 00:01:49,265

    5.00:01:49,266 —> 00:01:51,365

    6.00:02:06,366 —> 00:02:11,665

    7.00:02:11,666 —> 00:02:13,799

    8.00:02:16,766 —> 00:02:20,999

    9.00:02:21,000 —> 00:02:24,732

    10.00:02:24,733 —> 00:02:26,999

    11.00:02:27,000 —> 00:02:30,932

    12.00:02:30,933 —> 00:02:33,465

    13.00:02:33,466 —> 00:02:36,465

    14.00:02:36,466 —> 00:02:37,732

    15.00:02:37,733 —> 00:02:40,299

    16.00:02:40,300 —> 00:02:42,265

    17.00:02:45,300 —> 00:02:48,265

    18.00:02:48,266 —> 00:02:50,532

    19.00:02:50,533 —> 00:02:55,365

    20.00:02:55,366 —> 00:03:02,132

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