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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

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  • Loss of audio when using concat demuxer

    1er décembre 2013, par HarryChil

    I'm trying to simply add a .mp4 introduction to a .mp4 video using concat demuxer :

    input.txt :

    file 'C:\Vid\UT.mp4'
    

    
file 'C:\Vid\1.mp4'

    script.bat

    ffmpeg -f concat -i input.txt -codec copy output.mp4

    When I run the .bat, I loose the audio of '1.mp4'.
    Also, is there a way to process a batch of videos this way ? i.e. add 'UT.mp4' to '1.mp4' and '2.mp4' and '3.mp4' (and so on) in one batch...

    Many thanks,
    Harry

  • ffmpeg images-to-video script anyone ?

    3 février 2014, par danja

    I'm wanting to take a bunch of images and make a video slideshow out of them. There'll be an app for that, right ? Yup, quite a few it seems. The problem is I want the slides synced to a piece of music, and all the apps I've seen only allow you to show each slide for a multiple of a whole second. I want them to show for multiples of 1.714285714 seconds to fit with 140 bpm.

    The tools I've seen generally seem to have ffmpeg under the hood, so presumably this kind of thing could be done with a script. But ffmpeg has sooo many options...I'm hoping someone will have something close.

    I'll have up to about 100 slides, the ones that have to show for 3.428571428 secs or whatever I guess I can simply show twice.

  • ffmpeg images-to-video script anyone ?

    6 juillet 2017, par danja

    I’m wanting to take a bunch of images and make a video slideshow out of them. There’ll be an app for that, right ? Yup, quite a few it seems. The problem is I want the slides synced to a piece of music, and all the apps I’ve seen only allow you to show each slide for a multiple of a whole second. I want them to show for multiples of 1.714285714 seconds to fit with 140 bpm.

    The tools I’ve seen generally seem to have ffmpeg under the hood, so presumably this kind of thing could be done with a script. But ffmpeg has sooo many options...I’m hoping someone will have something close.

    I’ll have up to about 100 slides, the ones that have to show for 3.428571428 secs or whatever I guess I can simply show twice.

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