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Autres articles (51)

  • 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 (...)

  • 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

  • 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 (9009)

  • How to stream frames from ffmpeg to a process ?

    7 mars, par Vorac

    I would like to encrypt camera frames before transmitting. For that purpose the encrypting process needs to get the raw frames through some mode of IPC. I tried reading through the steaming API docs but got lost. This is an "what approach" question instead of a "working solution" one.

    


  • How to specify the GPU to be used by nvenc in ffmpeg [closed]

    25 septembre 2022, par Gio

    I'm using compiled ffmpeg executable for transcoding mpegts stream from h264 to h265 with nvenc. I have two nvidia Graphics Cards installed on my motherboard : GeForce GTX 690 and Tesla k-10. Is there any codec specific parameters for nvenc to choose the GPU I want to encode with ?

    


  • ffmpeg encode single input to multiple outputs simultaneously

    23 août 2019, par jippyjoe4

    Suppose I have a single input file that I would like to transcode into two different formats (ProRes and Mp4). Individually, the two commands I would use look like this :

    To convert it to mp4, I would use :

    ffmpeg -i in.mov -c:v libx264 -x264-params "nal-hrd=cbr" -b:v 30M -minrate 30M -maxrate 30M -bufsize 60M "out.mp4"

    And to convert it to ProRes, I would use :

    ffmpeg -i in.mov -c:v prores_ks -profile:v 2 -bits_per_mb 540 -vendor apl0 -pix_fmt yuv422p10le "out.mov"

    Rather than running these two commands sequentially to do the conversion, I think ffmpeg can encode to both formats simultaneously and save time. I’ve read this page (https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs), but I find it confusing. I tried something along the lines of :

    ffmpeg -i "in.mov" \
    
 -c:v libx264 -x264-params "nal-hrd=cbr" -b:v 30M -minrate 30M -maxrate 30M -bufsize 60M "out.mp4" \
    
 -c:v prores_ks -profile:v 2 -bits_per_mb 540 -vendor apl0 -pix_fmt yuv422p10le "out.mov"

    But attempting to run this just gives me the error :

    Unable to find a suitable output format for '\

    I don’t quite understand what’s going wrong. How can I encode my single input to both outputs simultaneously ?

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