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  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (4772)

  • avcodec/h264_mp4toannexb_bsf : refactor start_code_size handling

    18 mai 2023, par Zhao Zhili
    avcodec/h264_mp4toannexb_bsf : refactor start_code_size handling

    start_code_size depends on whether PS comes from out-of-band or
    
in-band. Make the code more readable.
    

    Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
    • [DH] libavcodec/h264_mp4toannexb_bsf.c

  • avcodec/h264_mp4toannexb : Fix heap buffer overflow

    25 mars 2024, par Zhao Zhili
    avcodec/h264_mp4toannexb : Fix heap buffer overflow

    Fixes : out of array write
    
Fixes : 64407/clusterfuzz-testcase-minimized-ffmpeg_BSF_H264_MP4TOANNEXB_fuzzer-4966763443650560
    

    mp4toannexb_filter counts the number of bytes needed in the first
    
pass and allocate the memory, then do memcpy in the second pass.
    
Update sps/pps size in the loop makes the count invalid in the
    
case of SPS/PPS occur after IDR slice. This patch process in-band
    
SPS/PPS before the two pass loops.
    

    Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
    • [DH] libavcodec/bsf/h264_mp4toannexb.c

  • aacdec : move from scalefactor ranged arrays to flat arrays

    14 mai 2024, par Lynne
    aacdec : move from scalefactor ranged arrays to flat arrays

    AAC uses an unconventional system to send scalefactors
    
(the volume+quantization value for each band).
    
Each window is split into either 1 or 8 blocks (long vs short),
    
and transformed separately from one another, with the coefficients
    
for each being also completely independent. The scalefactors
    
slightly increase from 64 (long) to 128 (short) to accomodate
    
better per-block-per-band volume for each window.
    

    To reduce overhead, the codec signals scalefactor sizes in an obtuse way,
    
where each group's scalefactor types are sent via a variable length decoding,
    
with a range.
    
But our decoder was written in a way where those ranges were carried through
    
the entire decoder, and to actually read them you had to use the range.
    

    Instead of having a dedicated array with a range for each scalefactor,
    
just let the decoder directly index each scalefactor.
    

    This also switches the form of quantized scalefactors to the format
    
the spec uses, where for intensity stereo and regular, scalefactors
    
are stored in a scalefactor - 100 form, rather than as-is.
    

    USAC gets rid of the complex scalefactor handling. This commit permits
    
for code sharing between both.
    • [DH] libavcodec/aac/aacdec.c
    • [DH] libavcodec/aac/aacdec.h
    • [DH] libavcodec/aac/aacdec_dsp_template.c

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