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  • Qu’est ce qu’un masque de formulaire

    13 juin 2013, par

    Un masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
    Chaque formulaire de publication d’objet peut donc être personnalisé.
    Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
    Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (6909)

  • avcodec/dts2pts_bsf : Eliminate some 64bit corner cases

    21 novembre 2022, par Michael Niedermayer
    avcodec/dts2pts_bsf : Eliminate some 64bit corner cases

    Fixes : negation of -2147483648 cannot be represented in type 'int' ; cast to an unsigned type to negate this value to itself
    
Fixes : 53364/clusterfuzz-testcase-minimized-ffmpeg_BSF_DTS2PTS_fuzzer-4693772269387776
    

    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/dts2pts_bsf.c

  • avutil/aes : Don't use misaligned pointers

    21 octobre 2022, par Andreas Rheinhardt
    avutil/aes : Don't use misaligned pointers

    The AES code uses av_aes_block, a union consisting of
    
uint64_t[2], uint32_t[4], uint8_t[4][4] and uint8_t[16].
    
subshift() performs byte-wise manipulations of two av_aes_blocks,
    
but when encrypting, it does so with a shift of two bytes ;
    
more precisely, it uses
    
"av_aes_block *s1 = (av_aes_block *) (s0[0].u8 - s)"
    
and lateron uses the uint8_t[16] member to access s0.
    
Yet av_aes_block requires to be suitably aligned for
    
the uint64_t[2] member, which s0[0].u8 - 2 is certainly
    
not. This is in violation of 6.3.2.3 (7) of C11. UBSan
    
reports this in the aes_ctr, mov-3elist-encrypted,
    
mov-frag-encrypted, mov-tenc-only-encrypted and srtp
    
tests.
    
Furthermore, there is another issue here : The pointer points
    
outside of s0 ; this works, because all the accesses lateron
    
use an index >= 3. (Clang-)UBSan reports this as
    
"runtime error : index -2 out of bounds for type 'uint8_t[16]'".
    

    This commit fixes both of these issues : The latter issue
    
is fixed by applying an offset of "+ 3" during the cast
    
and subtracting this from the indices used lateron.
    
The former issue is solved by not casting to av_aes_block*
    
at all ; instead simply cast to unsigned char*.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavutil/aes.c

  • avutil/aes : Don't use out-of-bounds index

    21 octobre 2022, par Andreas Rheinhardt
    avutil/aes : Don't use out-of-bounds index

    Up until now, av_aes_init() uses a->round_key[0].u8 + t
    
as dst of memcpy where it is intended for t to greater
    
than 16 (u8 is an uint8_t[16]) ; given that round_key itself
    
is an array, it is actually intended for the dst to be
    
in a latter round_key member. To do this properly,
    
just cast a->round_key to unsigned char*.
    

    This fixes the srtp, aes, aes_ctr, mov-3elist-encrypted,
    
mov-frag-encrypted and mov-tenc-only-encrypted
    
FATE-tests with (Clang-)UBSan.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavutil/aes.c

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