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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
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  • Les images

    15 mai 2013

  • Taille des images et des logos définissables

    9 février 2011, par

    Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
    Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)

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  • avformat/matroskaenc : Avoid unnecessary seek

    29 décembre 2019, par Andreas Rheinhardt
    avformat/matroskaenc : Avoid unnecessary seek

    When writing the SeekHead (a form of index) at the end of the muxing
    
process, mkv_write_seekhead() would first seek to the position where the
    
SeekHead ought to be written, then write it there and seek back to the
    
original position afterwards. Which means : To the end of the file.
    
Afterwards, a seek to the beginning of the file is performed to update
    
further values. This of course means that the second seek in
    
mkv_write_seekhead() was unnecessary.
    

    This has been changed : A new parameter was added to mkv_write_seekhead()
    
containing the destination for the second seek, effectively eliminating
    
the seek to the end of the file after writing the SeekHead.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavformat/matroskaenc.c

  • FFmpeg Single Input, Seek to Multiple Outputs

    2 avril 2020, par shesharp

    I'm trying to get multiple snapshots of a single input file using Input Seeking.&#xA;I want to seek to different keyframes and save each to different output images.

    &#xA;&#xA;

    I can use this using multiple calls :

    &#xA;&#xA;

    ffmpeg -ss 280 -i sample.mp4 -aspect 1.7777777777778 -vframes 1 -qmax 9 -qmin 8 -bt 10000000 -y -pix_fmt yuv420p out1.jpg&#xA;ffmpeg -ss 300 -i sample.mp4 -aspect 1.7777777777778 -vframes 1 -qmax 9 -qmin 8 -bt 10000000 -y -pix_fmt yuv420p out2.jpg&#xA;ffmpeg -ss 302 -i sample.mp4 -aspect 1.7777777777778 -vframes 1 -qmax 9 -qmin 8 -bt 10000000 -y -pix_fmt yuv420p out3.jpg&#xA;

    &#xA;&#xA;

    Unfortunately I have to call ffmpeg programmatically using exec. Is there a way to batch process the tasks above ? It has to use input seeking. Thanks.

    &#xA;

  • avformat/matroskaenc : Avoid seek when writing Cues at the front

    29 décembre 2019, par Andreas Rheinhardt
    avformat/matroskaenc : Avoid seek when writing Cues at the front

    When the Cues are written in front of the Cluster, the muxer would seek
    
to the beginning (to where the Cues ought to be written) and write the
    
Cues ; afterwards it would seek back to the end of the file only to seek
    
to the beginning once again to update several elements there. This
    
commit removes the seek to the end.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavformat/matroskaenc.c

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