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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (10077)

  • Writing decoded YUV420P data into a file with FFmpeg ?

    9 mai 2016, par Sir DrinksCoffeeALot

    I’ve read frame which is encoded with H264, decoded it, and converted it to YUV420P and the data is stored in frameYUV420->data, (type of frame is AVFrame). I want to save that data into a file that can be displayed with GIMP for example.

    I know how to save RGB25 pixel format but i’m not quite sure how to do YUV420P. Though i know that Y component will take width x height , and Cb/Cr will take (width/2) x (height/2) amount of space needed to save the data. So i’m guessing i need to first write Y data, and after that i need to write Cb and Cr data. Does anyone have finished code that i could take a look at ?

  • FFmpeg AVFrame Audio Data Modification

    5 septembre 2016, par Arlind

    I’m trying to figure out how FFmpeg saves data in an AVFrame after the audio has been decoded.

    Basically, if I print the data in the AVFrame->data[] array I get a number of unsigned 8 bit integers that is the audio in raw format.

    From what I can understand from the FFmpeg doxygen, the format of the data is expressed in the enum AVSampleFormat and there are 2 main categories : interleaved and planar. In the interleaved type, the data is all kept in the first row of the AVFrame->data array with size AVFrame->linesize[0] while in the planar type each channel of the audio file is kept in a separate row of the AVFrame->data array and the arrays have as size AVFrame->linesize[0].

    Is there a guide/tutorial that explains what do the numbers in the array mean for each of the formats ?

  • How to do reprocessing H264 data to image/video

    3 octobre 2017, par somethingunexpected

    I have been working on a project which blows my mind.

    First of all, I have an IP camera that streams H264 data. I am able to stream it with its RTSP url via VLC/ffmpeg/python (rtsp ://ip:port/PSIA/Streaming/channels/2 ?videoCodecType=H.264). So, there is nothing to worry about streaming.

    However, on the project, camera is connected to the another system. This system gives the H264 data via ethernet to my PC, so camera is not connected directly to the PC.
    The system gives the data in every 10 ms at 1000 bytes. For example, if incoming data is 800 bytes, it adds 200 null bytes.

    What I can do is to extract these null bytes and take the raw data via a socket. For latency, I use thread module so there is no data leakage.

    What I gotta do is to turn these raw H264 data to an image sequence or a video that can be displayed via VLC, ffmpeg, Classic Media Player etc.

    I preferrebly want to write my code in Python and every operation has to be in real-time. So, any help would be appreciated.

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