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Autres articles (23)

  • 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 (...)

  • 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

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (5979)

  • Problem about get the video from webcam in julia

    12 août 2020, par Wendy Chen

    I used this code to get the video from webcam in julia, but it was unstable when I setting the time exceed 4 and one half minutes(ex. -t 00:05:00). Why is that so ? And what should I do ?
Thanks.

    


    using  PyCall
run(`$(PyCall.python) -m pip install ffmpy`)
ffmpy = pyimport("ffmpy")
ff=ffmpy.FFmpeg(
     inputs=Dict("rtsp://......@....."=>nothing),
     outputs=Dict("./Video.mp4"=>"-t 00:01:00"))
println(ff.cmd)
ENV["PATH"]="PATH/TO/ffmpeg.executable;"*ENV["PATH"]
ff.run()


    


  • Revision 5c808ba13a : Add max burst bitrate control. Applies an upper limit on burst bitrate for any

    10 janvier 2014, par Paul Wilkins

    Changed Paths :
     Modify /vp9/encoder/vp9_firstpass.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_onyx_int.h


     Modify /vp9/encoder/vp9_ratectrl.c



    Add max burst bitrate control.

    Applies an upper limit on burst bitrate for any
    frame. This is to insure that typical encodes for YT
    do not produce frames that are so large that they
    risk stalling HW implementations. Such frames
    could also cause playback problems in SW.

    For now the limit is set at 250 bits per MB for 1080P
    and larger (with the 1080P limit used for smaller frames).

    Setting maxQ, constant quality mode or targeting a
    very high bandwidth will have precedence over this limit.

    Change-Id : Ie6f776c38b06ac7cec043d034085f4b79ee46a38

  • ffmpeg - compilation problem with g++

    22 août 2014, par Sun

    I am trying to run a program which uses ffmpeg libraries to decode a mp3 file. I am using following options for compiling the program :

    g++ -c play.cpp -o play.o
    
g++ -o play play.o -L/usr/local/lib -lavutil -lavcodec -lavformat -lavdevice \
    
                   -lavfilter -ldl -lasound -L/usr/lib -lSDL -lpthread -lz -lswscale -lm

    But while linking I am gettign following errors :

    play.cpp:(.text+0x49): undefined reference to `av_dup_packet(AVPacket*)'
    
play.cpp:(.text+0x66): undefined reference to `av_malloc(unsigned int)'
    
play.cpp:(.text+0x324): undefined reference to `avcodec_decode_audio3(AVCodecContext*, short*, int*, AVPacket*)'
    
play.cpp:(.text+0x387): undefined reference to `av_free_packet(AVPacket*)'

    and so on...
    These reported functions are available in the libavcodec.a etc. which i have already specified with the link options.
    Can anyone please tell me what could be wrong here or suggest how to approach debugging this ?

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