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Autres articles (29)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

Sur d’autres sites (2456)

  • Muxing two video streams without transcoding with ffpmeg and making vlc overlay them during play

    20 octobre 2016, par Laars Camot

    There is a software that claims it can be done but it’s two expensive for me for a try. Basically it muxes two video streams in one and makes the second transparent video stream overlay on top of the first like it would be a subtitle stream without video filters. The software author states that the resulting output should be playable with all players, including VLC. I’ve tried this :

    ffmpeg -i first.ts -i second.ts -vcodec copy -acodec copy -map 0 -map 1:0 -f mpegts out.ts

    But it simply adds a second video stream to the resulting file. Playing it with VLC makes the player open two separate VLC instances.. no overlay at all. Is there a way to make VLC show two separate videos concurrently in the same window ?

  • Recording video with unknown framerate with libav

    3 novembre 2016, par Chris

    I am recording video with libav and I would like the framerate it is written with to at least be in the right ballpark. Right now I get the framerate that my input claims to have and use that to set the framerate (time_base) for my output video stream. However this is sometimes wildly different from the actual framerate that I am getting (I have seen a stream claiming 50 fps but publishing at 9 fps).

    What I would like to do is use a elapsed timer and count the frames I record to calculate the actual framerate I recorded at. I would seem though that the framerate is set in my AVStream is used in avcodec_open2 before I write any frames. If I set it later (such as while I am writing frames) while ffplay can play it (complaining that the time increment bits is 6 not 4) other video players cannot. Is there a way to set the framerate for the whole file after writing the frames ? If not is there a way to tell the frames themselves some sort of timestamp or framerate while I am recording that will result in a valid recorded file ?

  • Recording video with unknown framerate with FFmpeg

    7 novembre 2016, par Chris

    I am recording video with FFmpeg and I would like the frame rate it is written with to at least be in the right ballpark. Right now I take the frame rate that my input claims to have and use that to set the frame rate (time_base) for my output video stream. However this is sometimes wildly different from the actual frame rate that I am getting (I have seen a stream claiming 50 fps but publishing at 9 fps).

    What I would like to do is use a elapsed timer and count the frames I record to calculate the actual frame rate I recorded at when I am finished recording. I would seem though that the frame rate is set in my AVStream is used in avcodec_open2 before I write any frames. If I set it later (such as while I am writing frames) while ffplay can play it (complaining that the time increment bits is 6 not 4) other video players cannot. Is there a way to set the frame rate for the whole file after writing the frames ? If not is there a way to tell the frames themselves some sort of timestamp or frame rate while I am recording that will result in a valid recorded file ?

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