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  • 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

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (6949)

  • Flashblock improvement : Use width/height : auto on SWF instead of 100%, latter does not fall within ClickToFlash’s 8x8px "invisible flash" (and if allowed, OK to load) rules. Better chance of load success with this approach.

    3 juillet 2011

    m script/soundmanager2-jsmin.js m script/soundmanager2-nodebug-jsmin.js m script/soundmanager2-nodebug.js m script/soundmanager2.js Flashblock improvement : Use width/height : auto on SWF instead of 100%, latter does not fall within ClickToFlash’s 8x8px "invisible flash" (and if allowed, OK to (...)

  • avcodec/pafvideo : Check input space for decode_0() before slow operations

    29 avril 2019, par Michael Niedermayer
    avcodec/pafvideo : Check input space for decode_0() before slow operations

    Fixes : Timeout (11sec -> 2sec)
    
Fixes : 14403/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAF_VIDEO_fuzzer-5697465698746368
    

    Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/pafvideo.c

  • Why seek on ts file is so slow ?

    2 juillet 2015, par skipper

    I am dealing with a ts file, following is ffprobe output :

    ffprobe version N-45589-gb6a0b8b-   http://johnvansickle.com/ffmpeg/    Copyright (c) 2007-2014 the FFmpeg developers
    
  built on Aug 28 2014 02:30:32 with gcc 4.8 (Debian 4.8.3-9)
    
  configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --disable-ffserver --enable-libass --enable-gnutls --cc=gcc-4.8
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  0.101 / 56.  0.101
    
  libavformat    56.  3.100 / 56.  3.100
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  0.103 /  5.  0.103
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
[hevc @ 0x298b4a0] No start code is found.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] No start code is found.
    
    Last message repeated 2 times
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] No start code is found.
    
    Last message repeated 7 times
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] No start code is found.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[hevc @ 0x298b4a0] PPS id out of range: 0
    
[hevc @ 0x298b4a0] Error parsing NAL unit #2.
    
[mpegts @ 0x2987560] decoding for stream 0 failed
    
[mpegts @ 0x2987560] Could not find codec parameters for stream 0 (Video: hevc ([36][0][0][0] / 0x0024)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mpegts, from 'mp4box-jlsj-4k.ts':
    
  Duration: 00:02:15.00, start: 0.001111, bitrate: 31116 kb/s
    
  Program 1
    
    Stream #0:0[0x65]: Video: hevc ([36][0][0][0] / 0x0024), 25 tbr, 90k tbn, 90k tbc
    
    Stream #0:1[0x66]: Audio: eac3, 48000 Hz, 5.1(side), fltp, 448 kb/s

    The problem I’m having is that seeking on this file is extremely slow, it took more than 1 minute to complete seek operation.

    This ts file is 500MB in size, has 2,793,052 ts packets, 2,750,469 video packets, 137 video packets with random_acces_indicator.
    What’s the possible reason for the slow seek ? Why is ffmpeg reporting these errors ? What do I need to do for the analysis ?

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