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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
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    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
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  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
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Sur d’autres sites (3787)

  • avutil : remove deprecated FF_API_H274_FILM_GRAIN_VCS

    19 février, par James Almer
    avutil : remove deprecated FF_API_H274_FILM_GRAIN_VCS

    Deprecated since 2024-03-23.
    

    Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] libavcodec/h2645_sei.c
    • [DH] libavutil/film_grain_params.h
    • [DH] libavutil/version.h

  • ffmpeg not available on Oracle Linux 9 update 3 [closed]

    19 janvier 2024, par Red Cricket

    I cannot figure out how to install ffmpeg on a Oracle Linux 9 update 3 (RHCK).

    &#xA;

    [root@snc-ol93-rhck ~]# dnf install ffmpeg-free&#xA;Last metadata expiration check: 0:14:16 ago on Wed 17 Jan 2024 04:48:34 PM UTC.&#xA;Error:&#xA; Problem: package ffmpeg-free-5.1.4-2.el9.x86_64 from ol9_developer_EPEL requires libavfilter.so.8()(64bit), but none of the providers can be installed&#xA;  - package ffmpeg-free-5.1.4-2.el9.x86_64 from ol9_developer_EPEL requires libavfilter.so.8(LIBAVFILTER_8)(64bit), but none of the providers can be installed&#xA;  - package libavfilter-free-5.1.3-1.el9.x86_64 from ol9_developer_EPEL requires librubberband.so.2()(64bit), but none of the providers can be installed&#xA;  - package libavfilter-free-5.1.4-1.el9.x86_64 from ol9_developer_EPEL requires librubberband.so.2()(64bit), but none of the providers can be installed&#xA;  - package libavfilter-free-5.1.4-2.el9.x86_64 from ol9_developer_EPEL requires librubberband.so.2()(64bit), but none of the providers can be installed&#xA;  - cannot install the best candidate for the job&#xA;  - nothing provides ladspa needed by rubberband-2.0.1-1.el9.x86_64 from ol9_developer_EPEL&#xA;  - nothing provides ladspa needed by rubberband-3.1.0-2.el9.x86_64 from ol9_developer_EPEL&#xA;  - nothing provides ladspa needed by rubberband-3.1.3-1.el9.x86_64 from ol9_developer_EPEL&#xA;(try to add &#x27;--skip-broken&#x27; to skip uninstallable packages or &#x27;--nobest&#x27; to use not only best candidate packages)&#xA;

    &#xA;

    Turns out I needed to install the repo like so in my ansible playbook

    &#xA;

    dnf install https://mirrors.rpmfusion.org/free/el/rpmfusion-free-release-9.noarch.rpm&#xA;

    &#xA;

  • lavc/vvc : Check slice structure

    10 janvier, par Frank Plowman
    lavc/vvc : Check slice structure

    The criteria for slice structure validity is similar to that of
    
subpicture structure validity that we saw not too long ago [1].
    
The relationship between tiles and slices must satisfy the following
    
properties :
    

    * Exhaustivity.  All tiles in a picture must belong to a slice.  The
    
  tiles cover the picture, so this implies the slices must cover the
    
  picture.
    
* Mutual exclusivity.  No tile may belong to more than one slice, i.e.
    
  slices may not overlap.
    

    In most cases these properties are guaranteed by the syntax.  There is
    
one noticable exception however : when pps_tile_idx_delta_present_flag is
    
equal to one, each slice is associated with a syntax element
    
pps_tile_idx_delta_val[i] which "specifies the difference between the
    
tile index of the tile containing the first CTU in the ( i + 1 )-th
    
rectangular slice and the tile index of the tile containing the first
    
CTU in the i-th rectangular slice" [2].  When these syntax elements are
    
present, the i-th slice can begin anywhere and the usual guarantees
    
provided by the syntax are lost.
    

    The patch detects slice structures which violate either of the two
    
properties above, and are therefore invalid, while building the
    
slice map.  Should the slice map be determined to be invalid, an
    
AVERROR_INVALIDDATA is returned.  This prevents issues including
    
segmentation faults when trying to decode,  invalid bitstreams.
    

    [1] : https://ffmpeg.org//pipermail/ffmpeg-devel/2024-October/334470.html
    
[2] : H.266 (V3) Section 7.4.3.5, Picture parameter set RBSP semantics
    

    Signed-off-by : Frank Plowman <post@frankplowman.com>
    • [DH] libavcodec/vvc/ps.c

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