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Autres articles (46)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • MediaSPIP Player : problèmes potentiels

    22 février 2011, par

    Le lecteur ne fonctionne pas sur Internet Explorer
    Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
    Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)

  • MediaSPIP Player : les contrôles

    26 mai 2010, par

    Les contrôles à la souris du lecteur
    En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)

Sur d’autres sites (5311)

  • creating a video from images

    12 septembre 2022, par ALAEDDIN

    My goal is to create a video from images using videoshow : a utility for node/io.js to create straightforward video slideshows based on images using FFmpeg.

    


    The problem i have is when i add more images like 3 with a display resolution of 1024x instead of 640x as in default the program/virtual machine (aws - t3.micro) freezes..until i force a restart in the console.. , but with 2 images the video is rendered just fine..

    


    I guess it's related to the memory.. how i can solve the issue and where i can see the logs ?

    


  • How to reduce latency in WebRTC streaming with ffmpeg [closed]

    14 septembre 2024, par Artem

    I have a backend written in Go that captures the screen using ffmpeg and streams it to the frontend via WebRTC. The goal is to reduce the latency in the stream.

    


    For WebRTC, I'm using the pion library, and the H264 codec. The implementation is based on this example.

    


    I’m not including the ffmpeg command since the question is more about WebRTC. Based on the logs, ffmpeg starts sending data fairly quickly (within half a second), and these bytes are sent to WebRTC immediately. However, the video does not start playing right away. I added some debug messages, and I can see that the bytes are being transmitted, but the video playback is delayed. It seems like WebRTC has some sort of buffer that needs to fill up before the video starts playing.

    


    The delay is more noticeable when using -framerate 5 with ffmpeg. If I increase the framerate to 25, the delay is much smaller, which aligns with the buffer theory, as more frequent data transmission seems to reduce the buffer filling time. However, I would prefer not to increase the framerate, as this would increase CPU usage.

    


    I experimented by sending more data as follows :

    


    rtc.videoTrack.WriteSample(media.Sample{Data: nal.Data, Duration: time.Second}) 
rtc.videoTrack.WriteSample(media.Sample{Data: nal.Data, Duration: time.Second}) 
rtc.videoTrack.WriteSample(media.Sample{Data: nal.Data, Duration: time.Second}) 


    


    This did reduce the delay, but it naturally caused errors in the video (my goal was to understand whether the delay was related to the amount of transmitted data).

    


    Could you please advise if there's something that can be done to address this issue ? Is there any way to configure the Pion library, or do you have any other ideas ?

    


    Thank you !

    


  • Debian killing ffmpeg

    3 juillet 2017, par Viktor Joras

    It must be some kind of Linux update because all of a sudden, after years of ffmpeg usage with Debian, ffmpeg gets killed without a logic reason. The funny part is there is no trace of killings in log files inside /var/log. Nothing !

    The killings are more or less random, sometimes it happens after 1 second, other times after 50 seconds.

    While transcoding ffmpegs outputs "Killed" and after few rows it outputs "Exiting normally, received signal 15".

    The same behaviour happens with 4 different machines with Debian, kernel 3.16 and 4.9 with a lot of RAM, so memory is not the issue.

    Is there a kind of setting that limits CPU or some other devilry that is ruining my happiness ?

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