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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    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 (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

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  • avcodec/mediacodecdec : warn when input buffers are not configured with proper size

    5 septembre 2019, par Aman Gupta
    avcodec/mediacodecdec : warn when input buffers are not configured with proper size

    In rare circumstances, if the codec is not configured with the
    
proper parameters the input buffers can be allocated with a size
    
that's too small to hold an individual packet. Since MediaCodec
    
expects exactly one incoming buffer with a given PTS, it is not
    
valid to split data for a given PTS across two input buffers.
    

    See https://developer.android.com/reference/android/media/MediaCodec#data-processing:
    

      > Do not submit multiple input buffers with the same timestamp
    

    Signed-off-by : Aman Gupta <aman@tmm1.net>
    • [DH] libavcodec/mediacodecdec.c

  • fftools/ffmpeg_dec : abort if avcodec_send_packet() returns EAGAIN

    22 mai 2023, par James Almer
    fftools/ffmpeg_dec : abort if avcodec_send_packet() returns EAGAIN

    As the comment in the code mentions, EAGAIN is not an expected value here
    
because we call avcodec_receive_frame() until all frames have been returned.
    
avcodec_send_packet() returning EAGAIN means a packet is still buffered, which
    
hints that the underlying decoder is buggy and not fetching packets as it
    
should.
    

    An example of this behavior was in the libdav1d wrapper before f209614290,
    
where feeding it split frames (or individual OBUs) would result in the CLI
    
eventually printing the confusing "Error submitting packet to decoder : Resource
    
temporarily unavailable" error message, and just keep going until EOF without
    
returning new frames.
    

    Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] fftools/ffmpeg_dec.c

  • How to convert from AV_PIX_FMT_BGRA to PIX_FMT_PAL8 ?

    29 juillet 2014, par Jona

    I’m having a hard time converting my images from AV_PIX_FMT_BGRA to PIX_FMT_PAL8. Unfortunately sws_getCachedContext doesn’t support the conversion to PIX_FMT_PAL8.

    What I’m trying to do is convert my images into a GIF video with higher quality output. It seems that PIX_FMT_PAL8 could potentially provide the higher quality output I’m looking for.

    According to this documentation I need to palettize the pixel data, but I have no clue how to do that.

    When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
    image data is stored in AVFrame.data[0]. The palette is transported in
    AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
    formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
    also endian-specific). Note also that the individual RGB palette
    components stored in AVFrame.data[1] should be in the range 0..255.
    This is important as many custom PAL8 video codecs that were designed
    to run on the IBM VGA graphics adapter use 6-bit palette components.

    Any help or direction would be appreciated.

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