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  • 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

  • Création définitive du canal

    12 mars 2010, par

    Lorsque votre demande est validée, vous pouvez alors procéder à la création proprement dite du canal. Chaque canal est un site à part entière placé sous votre responsabilité. Les administrateurs de la plateforme n’y ont aucun accès.
    A la validation, vous recevez un email vous invitant donc à créer votre canal.
    Pour ce faire il vous suffit de vous rendre à son adresse, dans notre exemple "http://votre_sous_domaine.mediaspip.net".
    A ce moment là un mot de passe vous est demandé, il vous suffit d’y (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (4847)

  • Android video encoding with fr and resolution manipulation

    24 février 2017, par apSTRK

    I want to be able to take a video recorded with an Android device and encode it to a new Resolution and Frame Rate using my app. The purpose is to upload a much smaller version of the original video (in size), since this will be videos 30 min long or more.

    So far, I’ve read of people saying FFmpeg is they way to go. However, the documentation seems to be lacking.

    I have also considered using http opencv http://opencv.org/platforms/android.html

    Considering I need to manipulate the video resolution and frame rate, which tool do you think can do such things better ? Are there any other technologies to consider ?

    An important question is, since this will be long videos, is it reasonable to do the encoding in an android device (Consider power resources, time, etc.)

    Thanks in advance !

  • Change bitrate of USB camera

    12 décembre 2018, par Nick Saw

    I use ELP USB camera with h264-codec output.

    Ffmpeg-command to take the video stream :

    ffmpeg -i /dev/video1 -c:v copy output.ts

    As result I have a video with 4Mb bitrate - this value is too high for my task.

    There is the same situation when I use GSTreamer :

    gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-h264,width=1280,height=720,framerate=30/1 ! mpegtsmux ! filesink location=output.ts

    I know that it’s possible to change the bitrate if we decode h264 the stream firstly and then encode it to h264 again. This operation requires too much CPU-power of my NanoPI device.

    The main question is :
    Is it possible to change a USB-camera’s bitrate without decoding ?

    Thanks in advance !

  • How to calulate PTS and DTS ? C++

    27 janvier 2024, par kodoma

    I have a mkv file where I want to extract the video stream. While extracting, I got the "... non monotonically increasing dts to muxer ..." Warning/Error. I have tried multiple solutions that I found online, but I could never get the timing to be right.

    


    This is the beginning of the video stream :

    


    DTS: 0    PTS: 0    Duration: 41 
DTS: 375  PTS: 375  Duration: 41 
DTS: 209  PTS: 209  Duration: 41 
DTS: 42   PTS: 42   Duration: 41 
DTS: 83   PTS: 83   Duration: 41 
DTS: 125  PTS: 125  Duration: 41 


    


    I also extracted the stream via the FFmpeg executable, and the extracted video file has the same DTS and PTS as the source.

    


    So how do I calculate the DTS and PTS correctly ? If I don't change the timings, the video is the same length, but it is total garbage.

    


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