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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

Sur d’autres sites (18242)

  • Scaling Application for video decoding using ffmpeg

    6 juillet 2020, par jasoos

    I am building an application to read multiple IP camera streams (rtsp) and run different Machine Learning Algorithms over it in real time. For each camera stream,

    


      

    1. I spawn an ffmpeg process which continuously break the rtsp streams
into frames and store them as images (JPEG). The streams use H.264
encoding. I am taking 1 frame every second as output.

      2. 


    2. Message queues corresponding to models are given the message
containing location of the file.

      3. 


    3. Models keep on picking up the file and drawing inferences

      4. 


    


    The problem I am facing is the CPU usage by ffmpeg decoding process. For real time inference without any loss of frames, I have to beef up my server by a core for every 2 camera streams. Is there any optimization I am missing for ffmpeg ?

    


    I am using Intel Xeon Gold processor with Ubuntu 18.04 OS

    


  • How to get video start time with libvlc

    7 juillet 2015, par 0xbaadf00d

    I’m trying to sync multiple videos based on the real time they were saved at.

    For playing the video, I ended up with libvlc, but now i’m unable to read the metadata that contains the time at which the video starts.

    I would use the start time to calculate offsets for videos, so that i can sync them with each other.

    I created the video from an rtsp stream with the ffmpeg command

    ffmpeg -i <stream path="path"> -timestamp now output.mp4
    
</stream>

    looking at the file with ffprobe, I can see that it contains the correct timestamp in creation_time.

    But this I am unable to read with libvlc.

    Is there a way to save the real wallclock start time on the video in such a way that i can read it from libvlc ?

    Other suggestions that tell me how to sync two videos are welcome as well.

  • ffmpeg command to is throwing error

    25 février 2013, par Bhargav Shah

    I am new to ffmpeg usage.
    I am trying to merge two video file.
    The below bullets will provide you more details about it.

    1. I-ball usb camera
    2. Screen capture utility named UScreenCapture.

    The below command i am using on DOS.

    ffmpeg -f dshow  -i video="iBall Face2Face Webcam C12.0" -f dshow -i video="UScreenCapture"  -r 25 -vcodec mpeg4 -q 12 -f mpegts test.ts

    This command captures only from Uscreencapture source.

    while grabbing frames from Camera it is giving me an error saying that
    real-time buffer 90% full ! frame dropped !
    real-time buffer 121% full ! frame dropped !

    Can any one provide me the solution for this issue ?

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