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    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 ;

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    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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.
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    A discussion list is available for all exchanges between users.

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  • Merge branch ’master’ of https://github.com/upsuper/ffmpeg-vdadec

    3 juin 2013, par Michael Niedermayer
    Merge branch ’master’ of https://github.com/upsuper/ffmpeg-vdadec

    * ’master’ of https://github.com/upsuper/ffmpeg-vdadec:
    
  vda_h264_dec : remove check_format
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/vda_h264_dec.c

  • Merge branch ’vdpau’ of https://github.com/FernetMenta/FFmpeg

    5 mai 2013, par Michael Niedermayer
    Merge branch ’vdpau’ of https://github.com/FernetMenta/FFmpeg

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/mpeg12dec.c

  • How do I alter my FFMPEG command to make my HTTP Live Streams more efficient ?

    17 octobre 2014, par Robert

    I want to reduce the muxing overhead when creating .ts files using FFMPEG.

    Im using FFMPEG to create a series of transport stream files used for HTTP live streaming.

    ./ffmpeg -i myInputFile.ismv \
    
         -vcodec copy \
    
         -acodec copy \
    
         -bsf h264_mp4toannexb \
    
         -map 0 \
    
         -f segment \
    
         -segment_time 10\
    
         -segment_list_size 999999 \
    
         -segment_list output/myVarientPlaylist.m3u8 \
    
         -segment_format mpegts \
    
         output/myAudioVideoFile-%04d.ts

    My input is in ismv format and contains a video and audio stream :

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x240, 348 kb/s, 29.97 tbr, 10000k tbn, 59.94 tbc
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 63 kb/s

    There is an issues related to muxing that is causing a large amout of overhead to be added to the streams. This is how the issue was described to me for the audio :

    enter image description here

    So for a given aac stream, the overhead will be 88% (since 200 bytes will map to 2 x 188 byte packets).

    For video, the iframe packets are quite large, so they translate nicely into .ts packets, however, the diffs can be as small as an audio packet, therefore they suffer from the same issue.

    The solution is to combine several aac packets into one larger stream before packaging them into .ts. Is this possible out of the box with FFMPEG ?

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