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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
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Diogene : création de masques spécifiques de formulaires d’édition de contenus

    26 octobre 2010, par

    Diogene est un des plugins ? SPIP activé par défaut (extension) lors de l’initialisation de MediaSPIP.
    A quoi sert ce plugin
    Création de masques de formulaires
    Le plugin Diogène permet de créer des masques de formulaires spécifiques par secteur sur les trois objets spécifiques SPIP que sont : les articles ; les rubriques ; les sites
    Il permet ainsi de définir en fonction d’un secteur particulier, un masque de formulaire par objet, ajoutant ou enlevant ainsi des champs afin de rendre le formulaire (...)

Sur d’autres sites (5011)

  • ffmpeg-Error "Buffer queue overflow, dropping." when merging two videos with delay

    20 septembre 2016, par Stefan Urbansky

    I want to merge two videos (as example the iphone video from https://peach.blender.org/trailer-page/). The videos are placed on an background image with the overlay filter and the second video starts 3 seconds later.

    And I need that the audio is mixed.

    Here is my code :

    ffmpeg \
    
    -loop 1 -i background.png  \
    
    -itsoffset 0  -i trailer_iphone.m4v \
    
    -itsoffset 3  -i trailer_iphone.m4v \
    
    \
    
    -y \
    
    -t 36 \
    
    -filter_complex "
    
        [2:a] adelay=3000 [2delayed];
    
        [1:a][2delayed] amerge=inputs=2 [audio];
    
        [0][1:v] overlay=10:10:enable='between(t,0,33)' [lv1];
    
        [lv1][2:v] overlay=10:300:enable='between(t,0,36)' [video]
    
    " \
    
    \
    
    -threads 0 \
    
    -map "[video]" -map "[audio]" \
    
    -vcodec libx264 -acodec aac \
    
    merged-video.mp4

    I get the error message :

    [Parsed_overlay_3 @ 0x7fe892502ac0] [framesync @ 0x7fe892502b88] Buffer queue overflow, dropping.

    And the merged video has many dropped frames.

    I know that are some other posting with this error message. But the suggested solutions doesn’t work for me.

    How can I fix the problem ?

  • Yes or no, will ffmpeg api do hardware decoding on iOS ?

    15 janvier 2019, par Fattie

    There seems to be conflicting information on this.

    https://trac.ffmpeg.org/wiki/HWAccelIntro

    notice the first diagram, it firmly marks iOS as “Y” on VideoToolbox

    enter image description here

    however in the comments down the bottom it says

    VideoToolbox. ​VideoToolbox, only supported on macOS. H.264 decoding is available in FFmpeg/libavcodec.

    And in the confusing second diagram it says "Standalone" is not done for VideoToolbox.

    We have found that using ffmpeg compiled in to iOS .... it seems to not use hardware decoding, which is really a pain.

    1. With avcodec_get_hw_config() we get AV_PIX_FMT_VIDEOTOOLBOX, AV_HWDEVICE_TYPE_VIDEOTOOLBOX which is seemingly correct.

    2. But usage and framerates clearly shows everything is being done in CPU. The code is in ff_hevc_hls_residual_coding all the time. (That’s fffmpeg’s software decoder.)

    3. This very diff very long git.videolan.org URL here seems to suggest again it should all be working.

    4. Have tried every iPhone etc. of course

  • Merge remote-tracking branch ’cehoyos/master’

    25 juillet 2013, par Michael Niedermayer
    Merge remote-tracking branch ’cehoyos/master’

    * cehoyos/master :
    
  Show max bitrate for mpeg2 video streams in avcodec_string().
    
  Allow native compilation on the iPhone.
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] configure
    • [DH] libavcodec/utils.c

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