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  • 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.

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

Sur d’autres sites (13030)

  • ffmpeg command leads to audio stream lost in conversion

    3 janvier 2023, par Sebastien Boulnois

    I have been exploring at a high level the concept of 360 videos for VR purposes and have been searching how to compress them in a way that my Oculus Quest 2 likes.

    


    I have been advised to use ffmpeg to do these kind of conversion. My initial file is a .mov file that I exported using ProRes422. My desired output is a compressed, optimized mp4 file for Oculus purposes.

    


    Here is the command line I used (simple copy paste from a person who was doing what I wanted to achieve) :

    


    ffmpeg -i input.mov -c:v libx264 -preset slow -crf 18 -maxrate 100M -bufsize 200M -pix_fmt yuv420p -an -movflags faststart output.mp4

    


    The compression works, the video quality is amazing. However, I lose the audio stream, which I really need.

    


    Here is the version of ffmpeg I currently have on my Mac :
ffmpeg current version on my mac

    


    Do you people know how to fix this issue ?

    


    I am just not sure how to proceed from here. I did not try anything specific.

    


  • Why ffmpeg/ffserver does not crop video before streaming ?

    23 juin 2023, par Lyudmila

    I want to stream webcam video to dashboard in Grafana.
I run an ffmpeg command :

    


    /usr/bin/ffmpeg -rtsp_transport tcp -i "rtsp://user:password@IP_camera:554/RVi/1/2" -an -filter:v "crop=192:108:100:100" -c:v libvpx -threads 4 -r 10 http://localhost:5070/feed_webm.ffm


    


    In ffserver.conf :

    


    HTTPPort 5070&#xA;HTTPBindAddress 0.0.0.0&#xA;CustomLog /var/log/ffserver-access.log&#xA;&#xA;<feed>&#xA;   File /tmp/feed_webm.ffm&#xA;   FileMaxSize 200M&#xA;   ACL allow 127.0.0.1&#xA;</feed>&#xA;&#xA;<stream>&#xA;   Feed feed_webm.ffm&#xA;   Format webm&#xA;&#xA;   NoAudio&#xA;&#xA;   VideoCodec libvpx&#xA;   VideoSize 704x576&#xA;   VideoFrameRate 8&#xA;&#xA;   AVOptionVideo flags &#x2B;global_header&#xA;   AVOptionVideo qmin 1&#xA;   AVOptionVideo qmax 31&#xA;&#xA;   PreRoll 15&#xA;   StartSendOnKey&#xA;   VideoBitRate 400&#xA;</stream>&#xA;&#xA;<stream>&#xA;    Format status&#xA;</stream>&#xA;

    &#xA;

    After that, the stream is visible on the dashboard without сrop.

    &#xA;

    If I run an ffmpeg command with save at PC, video is recorded and played with crop :

    &#xA;

    /usr/bin/ffmpeg -rtsp_transport tcp -i "rtsp://user:password@IP_camera:554/RVi/1/2" -an -filter:v "crop=192:108:100:100" -c:v libvpx -threads 4 -r 10 path_to_save/feed.webm&#xA;

    &#xA;

  • avutil/eval : Use even better PRNG

    2 janvier 2024, par Michael Niedermayer
    avutil/eval : Use even better PRNG

    This is the 64bit version of Chris Doty-Humphreys SFC64
    

    Compared to the LCGs these produce much better quality numbers.
    
Compared to LFGs this needs less state. (our LFG has 224 byte
    
state for its 32bit version) this has 32byte state
    
Also the initialization for our LFG is slower.
    
This is also much faster than KISS or PCG.
    

    This commit replaces the broken LCG used before.
    
(broken as it had only a period 200M due to being put in a double)
    

    This changes the output from random() which is why libswresample.mak
    
is updated, update was done using the command in libswresample.mak
    

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavutil/eval.c
    • [DH] libavutil/sfc64.h
    • [DH] tests/fate/libswresample.mak
    • [DH] tests/ref/fate/eval

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