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  • 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 vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

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  • FFMPEG : How to extract a PNG sequence from a video, remove duplicate frames in the process and keep the original frame number ?

    16 mai 2020, par Simon

    I have a recording of an old game which has variable framerate. Since I want to process individual frames to upscale and modernize the footage I would like to avoid any duplicate frames. I know that I can use this function to extract all frames from a video :

    



    ffmpeg -i input.mov -r 60/1 out%04d.png


    



    And I know that I can remove duplicate frames using this function :

    



    ffmpeg -i input.mov -vf mpdecimate,setpts=N/FRAME_RATE/TB output.mov


    



    However, the above command removes duplicate frames and puts frames next to each other whereas in order to keep a timecode of sorts it would be a lot more useful to be able to extract PNGs with frame number (video is progressive 60fps) but without all of the duplicates.

    



    So, the question is : what if I want to extract PNG files BUT maintain the original corresponding framenumber within the sequence ? So, if we have a video with 10 frames and frames 2-8 are duplicates it spits out 1.png 2.png 9.png and 10.png ? How do I combine both bits of code listed above ?

    


  • WebRTC H264 video live streaming (w FFMPEG) from OpenGL

    25 novembre 2022, par OBI

    I am trying to make a peer-to-peer game streaming platform. At this point I managed to capture the OpenGL frames and I have a functional Java websockets server, I can have 2 clients that establish a peer to peer connection (I have solved the STUN/TURN servers part) and transfer text at this point.

    



    I do not quite understand how I could stream a video made out of the Opengl frames with a low latency (<100ms). The problem mainly lies in the FFMPEG part, I want to use this to encode the frames, get the result (stdin/stdout redirect for ffmpeg ?), somehow link to the the JS API of the host (maybe a local websocket to which the JS of the hoster will connect to).

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    I tried several FFMPEG arguements/commands with stdin and stdout pipes and they did not work.

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  • moviepy problem with audio export : AttributeError : 'FFMPEG_AudioWriter' object has no attribute 'proc'

    3 novembre 2018, par Jaivin Wylde

    In this example, I need to create an audio export for speech recognition.

    clips = moviepy.editor.concatenate_videoclips(videoPart, method="compose")
    

    
clips.audio.write_audiofile("Clips/", game.replace(" ", "_") +
    
                            "/audio_export.mp3", verbose=False, codec="libmp3lame")

    Then I get this error message.

    Traceback (most recent call last):
    
File "/usr/local/lib/python3.5/dist-packages/moviepy/audio/io/ffmpeg_audiowriter.py", line 134, in __del__
    
self.close()
    
File "/usr/local/lib/python3.5/dist-packages/moviepy/audio/io/ffmpeg_audiowriter.py", line 122, in close
    
if self.proc:
    
AttributeError: 'FFMPEG_AudioWriter' object has no attribute 'proc'

    I would appreciate any help, thank you.

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