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Autres articles (26)

  • 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 (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (4915)

  • opencv3.1 python VideoCapture black screen

    3 mai 2017, par alex

    i’m trying to use opencv3.1 with python3.5
    following this official)tutorial
    http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_gui/py_video_display/py_video_display.html#display-video

    the camera led is "on" but the window doesn’t show any image (black)

    my current enviroment :
    - windows 10
    - python 3.5.2 (32bit)
    - numpy 1.12.0b1 (32bit) binaries downloaded from : http://www.lfd.uci.edu/ gohlke/pythonlibs/
    - opencv 3.1.0 (32bit) binaries downloaded from : http://www.lfd.uci.edu/ gohlke/pythonlibs/

    they seem installed correctly !

    as the tutorial says :

    Note Make sure proper versions of ffmpeg or gstreamer is installed. Sometimes, it is a headache to work with Video Capture mostly due to wrong installation of ffmpeg/gstreamer.

    i’ve no ffmpeg installed !!! so i suppose this is the cause of my problem
    so the questions are :
    1) which version of ffmpeg is needed ?
    2) how install ffmpeg on windows ? it seems a setup doesn’t exist(there is a binary section with a zip file ? how to use it after unzipped ?)
    3) is possible to see(in some way) if the opencv binaries(that i’ve downloaded) were compiled with ffmpeg support(flag ?)

    PS : i’ve tried to add the ffmpeg folder path the the PATH enviroment variable but nothing change

  • Rotate video adding black bars with ffmpeg [closed]

    24 juillet 2020, par MrMoog

    I have a lot of mp4 full hd videos made with a smartphone that looks rotated 90°.

    



    These files have proper rotation metadata and they plays correctly on VLC or other desktop mediaplayers, but I want to display them on my dvd player that does not handles mp4 metadata.

    



    So I tried to transpose with ffmpeg but I obtain 1080x1920 files, resolution obviously not recognized by tv/dvd-player.

    



    How can I transpose, resize and add black side (left/right) bars of the correct dimensions to get "correct" 1920x1080 videos ?

    


  • ffmpeg video splitting less then 10 sec gives black clip - ubuntu 18.04 LTS

    9 juillet 2020, par vipin

    I am using FFmpeg version 4.3-2 18.04.york0 on AWS EC2 server for video splitting, while I split video less then 11 seconds the output.mp4 gives a blank video. I have tried the same thing with my local MAC and Ubuntu 19 but it works fine.

    


    ffmpeg -i input.mp4 -ss 00:01:10 -to 00:01:15 -c:v copy -c:a copy output.mp4


    


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