Recherche avancée

Médias (91)

Autres articles (67)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • 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

Sur d’autres sites (8653)

  • Making a video with opencv and ffmpeg. How to find the right color format ?

    17 mai 2024, par luc

    I have a webcam video recorder program built with python, opencv and ffmpeg

    



    It works ok except that the color of the video is more blue than the reality. The problem seems to come from color format of images.

    



    It seems that OpenCv is giving BGR images and ffmpeg+libx264 is expecting YUV420p. I've read that YUV420p correspond to YCbCr.

    



    opencv has no conversion from BGR to YCbCr. It only has a conversion to YCrCb.

    



    I have made some searchs and tried different alternatives to try converting opencv image to something that could be ok for ffmpeg+libx264. None is working. At this point, I am a bit lost and I would appreciate any pointer that could help me to fix this color issue.

    


  • Making a video with opencv and ffmpeg. How to find the right color format ?

    19 décembre 2014, par luc

    I have a webcam video recorder program built with python, opencv and ffmpeg

    It works ok except that the color of the video is more blue than the reality. The problem seems to come from color format of images.

    It seems that OpenCv is giving BGR images and ffmpeg+libx264 is expecting YUV420p. I’ve read that YUV420p correspond to YCbCr.

    opencv has no conversion from BGR to YCbCr. It only has a conversion to YCrCb.

    I have made some searchs and tried different alternatives to try converting opencv image to something that could be ok for ffmpeg+libx264. None is working. At this point, I am a bit lost and I would appreciate any pointer that could help me to fix this color issue.

  • How to Create videos from txt with ffmpeg ?

    27 avril 2016, par thora.graham

    I want to create a list of videos from txt files.
    I find a code on stackoverflow

    ffmpeg -f lavfi -i color=c=blue:s=1024x768:d=150 -vf "drawtext=fontfile='C\:\\Windows\\Fonts\\arial.ttf':fontsize=45: fontcolor=white:x=(w-text_w)/2:y=(h-text_h)/2:textfile=1.txt" output.mp4

    But its only can create 1 video at a time with the same duration.

    Is it possible to create several videos at a time ?

    Anyone could help me to create bat file which could create videos from the txt file(1 txt to 1 video), and also each video have the different length(randomly from 180s to 240s)..

    I create a folder named txt, which have 1.txt 2.txt. 3.txt, the save the videos to a folder named video, and the videos name will be 1.mp4 2.mp4 3.mp4

    Thanks...

Navigation