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Autres articles (35)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

Sur d’autres sites (5073)

  • avformat/tls : Fix windows build with openSSL enabled.

    20 janvier 2014, par Matt Oliver
    avformat/tls : Fix windows build with openSSL enabled.

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/tls.c

  • Using OpenCV 2.4.4 with FFmpeg in Windows

    22 décembre 2015, par aardvarkk

    I know there are other questions dealing with FFmpeg usage in OpenCV, but most of them appear to be outdated.

    By opening up the makefiles in CMake, I can verify that I’ve got the WITH_FFMPEG flag on. My output folder for the OpenCV build contains a bin folder, within which are Debug and Release folders, each containing a copy of a .dll file entitled opencv_ffmpeg244.dll. I can step into the source code of OpenCV when I create a VideoWriter and verify that the function pointers to the .dll get filled correctly. That much appears to be working.

    If I use the FOURCC code of CV_FOURCC_PROMPT, the following codecs work properly :

    • Microsoft Video 1
    • Intel IYUV codec
    • Logitech Video (I420)
    • Cinepak Codec by Radius
    • Full Frames (Uncompressed)

    The following codecs do not work properly (ie. produce a 0kb video file) :

    • Microsoft RLE

    If my understanding is correct, using FFMPEG should allow for encoding video using a whole bunch of new codecs (x264, DIVX, XVID, and so on). However, none of these appear in the prompt. Manually setting them by their FOURCC codes using the macro CV_FOURCC(...) also doesn’t work. For instance, using this : CV_FOURCC('X','2','6','4') produces the message :

    Could not find encoder for codec id 28: Encoder not found

    and makes a video file of size 0kb.

    Using this : CV_FOURCC('X','V','I','D') produces no error message, and makes a video file of 6kb that will not play in Windows Media Player or VLC.

    I tried manually downloaded the Xvid codec from Xvid.org. Once that was installed, it appeared under the VFW selection in the prompt, and the encoding worked properly. So it’s close to a solution, but if I try to set the FOURCC code directly, it still fails as above ! I have to pick it from the prompt every time. Isn’t FFmpeg supposed to include a whole bunch of codecs ? If so, why am I manually downloading the codec instead of using the one built into FFmpeg ?

    What am I missing here ? Is there a way to check that FFMPEG is "enabled" ? It seems like the only codecs available in the prompt are VFW codecs, not the FFMPEG ones. The .dll has been built and is sitting in the same folder as the executable, but it appears it’s not being used in any way.

    Lots of related questions here. Hoping to find somebody knowledgeable about the FFmpeg implementation in OpenCV and with some knowledge of how all of these pieces fit together.

  • How to compile Android FFMpeg by cygwin at windows [on hold]

    8 février 2014, par user3286579

    All Developer

    I want to receive your help really.

    Because I don't know about how to compile ffmpeg for android by cygwin at windows.

    Thanks

    Yang.

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