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Autres articles (64)

  • 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.

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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 (10018)

  • problem with moviepy.video.io.ffmpeg_tools.ffmpeg_movie_from_frames

    7 mars 2023, par fjal

    when i try using this code it gives me this error

    


    from moviepy.video.io.ffmpeg_tools import ffmpeg_movie_from_frames as a
a('file.mp4','New folder',24)


    


    Traceback (most recent call last) :
File "C :\Users\lenovo\Desktop\fr.py", line 2, in 
a('file.mp4','New folder',24)
File "C :\Users\lenovo\AppData\Local\Programs\Python\Python37-32\lib\site-packages\moviepy\video\io\ffmpeg_tools.py", line 20, in ffmpeg_movie_from_frames
"-b", "%dk"%bitrate,
TypeError : %d format : a number is required, not str

    


  • Problem to capture a video in 4K with FFmpeg

    16 mars 2020, par Ale7

    I am a new user of FFmpeg. I am trying to capture a ten minutes video in mp4 format, on 4 4K’s slot and 4 FHD’s slot with cards video Pro Capture by Magewell.
    My machine has the following characteristics :

    • OS : Windows Server 2012
    • RAM : 64 GB
    • CPU : 2 processors Intel Xeon E5-2640 v3 @ 2.60 GHz

    The FFmpeg script, for slot 4K (I change resolution for FHD), used is the following :

    ffmpeg -rtbufsize 2048M -re -y -thread_queue_size 20384 -pix_fmt yuv420p -f dshow -video_size 3840x2160 -r 50 -i video="Video (05-0 Pro Capture HDMI 4K+)"  -codec:v libx264  -preset ultrafast -threads 8 -pix_fmt yuv420p -tune fastdecode -bufsize 2048M output.mp4

    This command is the best solution found at the moment, but the CPU goes up to 100% and the buffer fills up quickly and starts to drop the frames.
    So, my question : Is there a way to improve it or is a limit, principally, of the my machine ?
    If it is a machine limit, you would indicate me the minium requirments to do that.

    Thanks in advance to everyone.

  • Problem while building libffmpeg.so from ffmpeg sources (undefined symbol : avcodec_version)

    10 octobre 2023, par serggt1

    I'm trying to build libffmpeg.so shared library from sources on Linux. Sources are here FFmpeg.git.

    


    I run

    


    ./configure
make -j4

gcc -shared \
    libavcodec/libavcodec.a \
    libavdevice/libavdevice.a \
    libavfilter/libavfilter.a \
    libavformat/libavformat.a \
    libavutil/libavutil.a \
    libswresample/libswresample.a \
    libswscale/libswscale.a \
    -o libffmpeg.so


    


    The problem is the resulting libffmpeg.so is only 15 KB and says

    


    dlsym fail : /opt/yandex/browser/libffmpeg.so: undefined symbol: avcodec_version


    


    What do I wrong and how to link the library in correct way ?

    


    UPD :

    


    Now trying with this :

    


    ./configure --enable-pic --disable-programs  --enable-gpl --enable-version3 --enable-nonfree

make -j4

ld \
    -rpath-link=/usr/lib \
    -L/usr/lib \
    -L/lib \
    --library=c --library=m --library=z --library=dl --library=log \
    -soname libffmpeg.so -shared -nostdlib -Bsymbolic --whole-archive --no-undefined \
    libavcodec/libavcodec.a \
    libavdevice/libavdevice.a \
    libavfilter/libavfilter.a \
    libavformat/libavformat.a \
    libavutil/libavutil.a \
    libswresample/libswresample.a \
    libswscale/libswscale.a \
    -o libffmpeg.so


    


    Error is ld: cannot find -lc: No such file or directory

    


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