Recherche avancée

Médias (17)

Mot : - Tags -/wired

Autres articles (45)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (8431)

  • Run 3 Docker images together as a single service

    20 juin 2018, par kitce

    I want to run 3 Docker images as a single service. They are the official nginx, jrottenberg/ffmpeg and a custom image.

    The custom image will return video files for HTTP requests on port 80, e.g. http:////video.mp4.

    I want to make the video files available for HLS in M3U8 playlist (or other better formats ?).

    The main idea is as follows :

    • Encode video.mp4, output video.m3u8 and segment files with ffmpeg
    • Serve the video.m3u8 and segment files with Nginx
    • The final and the only available web service of the container is http:///.m3u8.
    • Encode only when someone is requesting it (i.e. trigger the encoding when the first request comes, stop encoding and delete segment files when nobody requests it)

    I tested the HLS part with ffmpeg and it works. I am just not sure about how to put Nginx and ffmpeg to work together.

  • How can I best utilize an AWS service to segment a video into smaller chunks and then combine them back to together ? [on hold]

    19 avril 2018, par Justin Malin

    I am trying to do processing on videos uploaded to AWS S3 using an AWS Lambda function in Python. However, FFmpeg and ffmpeg-python (as far as I am aware) are unable to process objects and must do processing on stored files. Lambda only allows for 500 MB of storage in the /tmp/ folder, thus limiting the size of video that I can do processing on.

    If there is an alternative to FFmpeg that allows me to work on object files that I am unaware of, that would be a reasonable solution because I can scale up the memory of the Lambda function (although there is still a limit).

    Alternatively, I have looked into segmenting the video using AWS Elastic Transcoder, but I do not think I can dynamically segment the video using that service. If there is a service similar to this that could segment the video into individual frames (and back), that would be even better.

    I have also considered using AWS EC2, but I would only be using the EC2 service to segment videos sporadically, so it would be a waste to constantly have a server that capable running. If I use the AWS Elastic Beanstalk, would it automatically start a more powerful instance of EC2 to do the video segmentation (and reformation) when that is called and revert back to a much smaller instance when dormant ?

    Essentially, I would like to know if there are any services (preferably within AWS) that allow me to segment a video into shorter videos or into each frame at-will.

  • aac : Register the mime type

    13 mars 2014, par Luca Barbato
    aac : Register the mime type

    Speed up probing ADTS live streams that are not frame-aligned such
    
as http://mp3.streampower.be/radio1.aac .
    • [DH] libavformat/aacdec.c

Navigation