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  • Les formats acceptés

    28 January 2010, by

    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 April 2011, by

    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 (...)

  • Ajouter notes et légendes aux images

    7 February 2011, by

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

On other websites (5354)

  • FFMPEG overlay video with black background over an image not working without any errors

    19 June 2018, by bil80

    I have a snow effect video with black background snow.mp4, and i want to overlay it over a fixed jpeg image.jpg
    The generated output video result was only with the image without the snow effect, my ffmpeg version is: 3.2.10, i don’t understand why it is not working with me, have you an idea?

    This is my command line:

    ffmpeg -i image.jpg -i snow.mp4 -filter_complex '[1:v]scale=1280x768,setdar=16:9,colorkey=0x000000:0.3:0.2[ckout];[0:v]scale=1280x768,setdar=16:9,[ckout]overlay[out]' -map '[out]' output.mp4

    I tried also with the chromakey instead of colorkey, without success :/

    This is the result video that i got:
    output.mp4

    What i want is this result with snow effect: output_with_snow_effect.mp4

  • ffmpeg auto crop black frame and watermark

    4 June 2018, by rbarab

    We are processing short videos. Most of them are 640x480, recorded by mobile. Many of them have a black frame on left and right.
    I would like to watermark the videos and currently using this command.

    ffmpeg -i IN.mp4 -i WATERMARK.png -filter_complex "overlay=main_w-overlay_w-10:main_h-overlay_h-10" OUT.mp4

    The problem is that if there is a frame, part of the watermark goes on the frame and only a part is on the actual content. Would like to place the watermark on the bottom right of the actual content.

    Are any of these possible, or any other ideas?

    a, Dynamically detect the black frames and adjust the watermark position accordingly.

    b, Crop the black frame and watermark the content correctly in the same step.

    Thanks a lot for your help!

  • Creating video from images produces black screen video for certain image formats [duplicate]

    30 May 2018, by varmashrivastava

    This question already has an answer here:

    I am using below command to create video from images.The command works fine for most images but for png images the video created cannot be played and I just get a black screen.

     String[]  command = new String[]{"-y", "-f", "concat", "-safe", "0", "-i", src.getAbsolutePath(), "-vsync", "vfr", "-vf", "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2", dest.getAbsolutePath()};

    Here destination file path has mp4 format..
    Whats wrong with my command?

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