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  • 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

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (6574)

  • Revision 06510d1ff9 : Enable encoding and bit-stream writing based on mode_info array This commit ena

    13 juin 2014, par Jingning Han

    Changed Paths :
     Modify /vp9/common/vp9_onyxc_int.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/decoder/vp9_decodemv.c


     Modify /vp9/decoder/vp9_decoder.c


     Modify /vp9/encoder/vp9_context_tree.c


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_encoder.c



    Enable encoding and bit-stream writing based on mode_info array

    This commit enables vpxenc to encode and write out bit-stream from
    coding information provided by external mode_info array file. It
    currently assumes single reference frame and 8-tap switchable
    prediction filters at frame header level.

    Tested using the mode_info array dumped at VP9 decoder into the
    external file, where the bit-stream was generated by VP9 encoder
    at speed -6. The coding statics remain the same.

    Note that the compression performance will be affected quite a lot
    in the two pass coding setting, where at this point the rate
    control scheme can not be updated properly without statistics
    gathered during rate distortion optimization search.

    Change-Id : Ide979d08d3ce6167c1f2e513c34fd8440f3e2aaf

  • avcodec/pthread_frame : fix setting hwaccel with threads and get_format()

    9 juillet 2014, par Michael Niedermayer
    avcodec/pthread_frame : fix setting hwaccel with threads and get_format()

    Fixes assertion failure with vdpau and vlc
    
Fixes Ticket3742
    

    Tested-by : oromit
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/pthread_frame.c

  • FFMPEG - How to transcode and segment to multiple bitrates ?

    25 juillet 2014, par ipegasus

    I would like to know how to use FFMPEG to transcode video (Prores codec) and segment videos to multiple bitrates. Is it possible to do it in one command ?

    Current working solution with X264 :

    1. Encode Videos Using X264.

      /home/ubuntu/bin/ffmpeg -y -i "$video_path" -threads 1 -f mpegts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=12:keyint=36:bitrate=200" -s 416x234 "$DIR_VIDEO_OUTPUT/$filename"/p1.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=12:keyint=36:bitrate=400" -s 480x270 "$DIR_VIDEO_OUTPUT/$filename"/p2.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=24:keyint=72:bitrate=600" -s 640x360 "$DIR_VIDEO_OUTPUT/$filename"/p3.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=24:keyint=72:bitrate=1200" -s 640x360 "$DIR_VIDEO_OUTPUT/$filename"/p4.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=1800" -s 960x540 "$DIR_VIDEO_OUTPUT/$filename"/p5.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=2500" -s 960x540 "$DIR_VIDEO_OUTPUT/$filename"/p6.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=4500" -s 1280x720 "$DIR_VIDEO_OUTPUT/$filename"/p7.ts

    2. Using an extrenal segmenter

      cd $DIR_VIDEO_OUTPUT/$filename
      mkdir M3U8
      for p in p1 p2 p3 p4 p5 p6 p7 ; do mkdir $DIR_VIDEO_OUTPUT/$filename/M3U8/$p.seg ; (cd M3U8 ; m3u8-segmenter —input $DIR_VIDEO_OUTPUT/$filename/$p.ts —duration 7 —output-prefix $p.seg/$p —m3u8-file $p.m3u8 —url-prefix "") ; done

    3. And finally manualy the individual playlists are joined into one

      echo ’

      EXTM3U

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=264000,RESOLUTION=416x234

      p1.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=464000,RESOLUTION=480x270

      p2.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=664000,RESOLUTION=640x360

      p3.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1264000,RESOLUTION=640x360

      p4.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1864000,RESOLUTION=960x540

      p5.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2564000,RESOLUTION=960x540

      p6.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=4564000,RESOLUTION=1280x720

      p7.m3u8’ >> $filename.m3u8
      cd "$DIR_VIDEO_OUTPUT/$filename"/
      sudo rm *.ts

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