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Autres articles (53)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Les images

    15 mai 2013

  • Mediabox : ouvrir les images dans l’espace maximal pour l’utilisateur

    8 février 2011, par

    La visualisation des images est restreinte par la largeur accordée par le design du site (dépendant du thème utilisé). Elles sont donc visibles sous un format réduit. Afin de profiter de l’ensemble de la place disponible sur l’écran de l’utilisateur, il est possible d’ajouter une fonctionnalité d’affichage de l’image dans une boite multimedia apparaissant au dessus du reste du contenu.
    Pour ce faire il est nécessaire d’installer le plugin "Mediabox".
    Configuration de la boite multimédia
    Dès (...)

Sur d’autres sites (7337)

  • Why ffmpeg is skipping some images ?

    17 décembre 2019, par niyasc

    I’m trying to create a slideshow with cross-fade effect using ffmpeg.

    As mentioned, another SE question, I’m using the following line for this purpose.

    ffmpeg -i SEQ_%03d.png -i $AUDIO -vf zoompan=d=$TOTAL_DURATION:fps=1/$FADE_DURATION,framerate=25:interp_start=0:interp_end=255:scene=100 -c:v mpeg4 -shortest -maxrate 5M -q:v 2 "temp_file.mp4"

    Full script is stored in Github.

    This works well. But, it is skipping some of my images. It is skipping the images that I created using GIMP. These images are appearing, If i keep it at the beginning of the sequence. But, not at the end.

    I have created a MVP for the same.

    The issue can be reproduced with following command.

    ffmpeg -i %02d.png -vf zoompan=d=4:fps=1,framerate=25 out.mp4

    Input images are available in Github.

    Please help me to understand why this script is not taking some of my images.

    Thanks.

  • Join images and audio to result video

    15 octobre 2017, par Arthur Alves

    I have a lot of images with different sizes (i.e. 1024x768 and 900x942) and an audio file (audio.mp3) of 30 seconds and I need to create a video from them.

    I’m trying it now with : result%d.png (1 to 4) and audio.mp3

    ffmpeg -y -i result%d.png -i audio.mp3 -r 30 -b 2500k -vframes 900
    
-acodec libvo_aacenc -ab 160k video.mp4

    The video video.mp4 has 30 seconds but the 3 first images is showed very quickly when the last image remains until the end of the audio.

    Each image needs to be showed in a equal time until the end of the audio. Anyone knows how to do it ?

    The number of the images will vary sometimes.

  • How does one encode a series of images into H264 using the x264 C API ?

    23 septembre 2016, par Rella

    How does one use the x264 C API to encode RBG images into H264 frames ? I already created a sequence of RBG images, how can I now transform that sequence into a sequence of H264 frames ? In particular, how do I encode this sequence of RGB images into a sequence of H264 frame consisting of a single initial H264 keyframe followed by dependent H264 frames ?

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