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Autres articles (111)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 (10343)

  • ffmpeg latency even on 127.0.0.1 udp

    3 juin 2016, par KKKk

    I’ve got a problem with ffmpeg video stream(udp). Thing is I’ve got about 2 sec delay on live stream even on loopback(!).

    I use those parameters :

    ffmpeg -f dshow -i video="screen-capture-recorder" -vcodec libx264 -preset ultrafast -tune zerolatency -r 10 -maxrate 750k -bufsize 3000k -f mpegts udp://127.0.0.1:1234

    I tried also those :

    ffmpeg -f dshow -i video="screen-capture-recorder" -framerate 30 -c:v libx264 -preset veryfast -tune zerolatency -pix_fmt yuv444p -x264opts crf=20:vbv-maxrate=3000:vbv-bufsize=100:intra-refresh=1:slice-max-size=1500:keyint=30:ref=1 -f mpegts udp://127.0.0.1:1234

    but it’s even worse.
    I tried to raise framerate, or decrease GOP value, but it didn’t help me. Any ideas ? Maybe I did some basic mistakes since I’m beginner yet..
    (probesize at 32 didn’t help me too).

  • Taking a high resolution picture with FFMPEG and Webcam

    13 mai 2016, par user2088176

    I have a Microsoft LifeCam VX-3000 and I want to capture a single image from this video source.

    I have tried DirectShow :

    ffmpeg -f dshow -video_size 1280x960 -i video="Microsoft LifeCam VX-3000" -vframes 1 file.jpg
    

    
[dshow @ 01D69340] Could not set video options

    and
    Microsoft WDM Image Capture :

    ffmpeg -f vfwcap -video_size 1280x960 -i video="Microsoft LifeCam VX-3000" -vframes 1 file.jpg
    

    
[vfwcap @ 01D79340] Could not set Video Format.

    If I lower the video size to 640x480, it works, but every sites tells me that 640x480 is the maximum video resolution, but the still picture maximum resolution is 1280x960. Like here

    I would like to capture the image at the highest resolution possible. Is there a way to do it with FFMPEG ? What command-line options should I give it ?

    Thank you very much.

  • ffmper with vlc - too heavy screen grabbing, resulting injumpy file, frame loss

    15 mai 2016, par OGP

    I’m using ’vlc/ffmpeg’ package to grab the screen and convert it to H.264 file.

    The problem arises when the host is heavily loaded. I need to maintain correct time stamps and use the 5 fps (relatively low frame rate). Yet sometimes the resulting file jumps few seconds forward, apparently due to frame loss.
    I can deal with the frame loss, it’s OK, but I need to duplicate lost frames to maintain correct timing.

    My configuration file :

    vlc.exe screen :// -I dummy —verbose=2 —one-instance :screen-fps=5 :screen-caching=10000 :sout=#transcodevenc=x264preset=ultrafast,tune=zerolatency,vcodec=h264,fps=5,vb=3000,width=1024,height=576,acodec=none:filedst="C :\tmp\output.mp4"

    What should I add/config to preserve proper time stamps and clip duration ?

    Many thanks for your help.

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