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  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
    Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)

  • 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 (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (6218)

  • Redact parts of an audio file using python (FFMPEG)

    18 août 2020, par K3rn3l5

    I have a use case where I need to dynamically redact parts of an audio file using python. For example sometimes I may have to remove between timestamps 10 to 15 and other times between 5 to 7, 12 to 16 and 21 to 26 . I have tried looking at FFMPEG and think it may be possible with filters or chaining filters, but I am having trouble figuring out which ones to use and the combination. Any help or pointers will be highly appreciated. TIA !

    


  • ffmpeg generate video from images timestamped

    11 février 2020, par user3262532

    I have a set of timestamped image as input and I want to generate a output video from it.

    My command is :

    ffmpeg   -f image2 -ts_from_file 1 -i './%*.jpeg'    './video.avi'

    As output I get many errors :

    ....
    
[mjpeg @ 0x5591f1d5f100] bits 121 is invalid
    
Error while decoding stream #0:0: Invalid data found when processing input
    
[mjpeg @ 0x5591f1d5f100] mjpeg: unsupported coding type (c5)
    
frame=  983 fps=130 q=31.0 size=    3078kB time=00:00:49.15 bitrate= 512.9kbits/[mjpeg @ 0x5591f1d5f100] EOI missing, emulating
    
    Last message repeated 4 times
    
frame= 1048 fps=130 q=31.0 size=    3334kB time=00:00:52.40 bitrate= 521.2kbits/[mjpeg @ 0x5591f1d5f100] mjpeg: unsupported coding type (c8)
    
frame= 1118 fps=130 q=31.0 size=    3590kB time=00:00:55.90 bitrate= 526.0kbits/[mjpeg @ 0x5591f1d5f100] bits 178 is invalid
    
Error while decoding stream #0:0: Invalid data found when processing input
    
[mjpeg @ 0x5591f1d5f100] mjpeg: unsupported coding type (c7)
    
[mjpeg @ 0x5591f1d5f100] EOI missing, emulating
    
    Last message repeated 5 times
    
frame= 1165 fps=130 q=24.8 Lsize=    3904kB time=00:00:58.25 bitrate= 549.0kbits/s speed=6.52x    
    
video:3870kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.864412%

    The output video is not properly generates, the video file has the good framerate but visually the video is run too quick.

    I try many commands to get proper output but I can get it.

  • Precise syncronized stream Recording

    15 octobre 2020, par LuckyLuke1984

    I have multiple streams from cameras and I would like to capture an event from different point of views. My program opens at the moment X at once for each of these streams a different process that is calling an instance of ffmpeg to record the stream.
The problem is that the moment Y where the event happens is not exactly after Z seconds in each recorded file. There is a mismatch between each stream, resulting from different starting times of the videos.

    


    How can I trigger the start of the recording more precisely ?

    


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