Recherche avancée

Médias (1)

Mot : - Tags -/censure

Autres articles (36)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • 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 (...)

Sur d’autres sites (9318)

  • How to live stream from Windows 10 app to Youtube ?

    12 août 2015, par Boland

    I’m playing around with the YouTube Live Stream API. That’s working fine so far, but the next step is to stream the web cam data to YouTube via RTMP.

    In the (excellent) documentation at Google Dev, it outlines the Life of a Broadcast. However, all steps are documented in detail, except the step I’m interested in :

    Step 3.2 : Start your video

    Start transmitting video on your video stream.

    I was able to use Open Broadcasting Software to stream to a manually created YouTube Live Event, but I have no idea how to do it from my Windows 10 App. I’ve looked at the MediaElement class, and was able to capture the web cam preview in my app. But I can only find methods to save as a file.

    Also found information about FFMPEG, which should probably be able to do the job, but I cannot find a library / DLL to use FFMPEG in my App.

    I just need some guidance where to look next, because now I’m just clueless what to do.

    /edit : I came across MPlatform SDK, which sounds exactly what I want, but it costs $5000.... Not for a hobby :(

  • ffmpeg - output 5.1 AAC without lowpass on the LFE channel

    1er janvier 2023, par blendmaster

    I'm trying to encode 6 arbitrary mono audio streams into a single AAC 5.1 track in an mp4 container (here with test streams) :

    


    ffmpeg -f lavfi -i testsrc=duration=10:size=100x100:rate=30 -f lavfi -i aevalsrc="-2+random(0)" -filter_complex "[1:a][1:a][1:a][1:a][1:a][1:a]join=inputs=6:channel_layout=5.1:map=0.0-FL|1.0-FR|2.0-FC|3.0-LFE|4.0-BL|5.0-BR[a]" -map '0:v' -map "[a]" -c:a aac -channel_layout 5.1 -t 10 testlfe.mp4


    


    5 of the channels replicate the input audio just fine (modulo encoding). However, the LFE channel is lowpassed. Extracting with :

    


    ffmpeg -i testlfe.mp4 -filter_complex "channelsplit=channel_layout=5.1:channels=LFE[LFE]" -map '[LFE]' testlfe.wav


    


    I get a lowpassed rumble, instead of the original full white noise

    


    output spectrogram

    


    (from ffmpeg -i testlfe.wav -lavfi showspectrumpic=s=640x320 testlfe.png)

    


    Is there a way to prevent the lowpass from happening ?

    


    I couldn't find any references whether that's inherent to the AAC 5.1 encoding, something that ffmpeg does, or inherent to the decoding process. (I did decode my same test files using something that uses Microsoft MediaFoundation and the LFE channel was still lowpassed).

    


  • How do I send buffer to a virtual camera driver ?

    15 juin 2022, par rvega01

    I'm currently working on a project in a Windows environment where I have a Node.js application that accepts an RTSP video stream from a button click and I would like to stream the video data to a virtual camera driver and have it displayed within Microsoft Teams and Skype. The driver that I'm using and have installed (https://github.com/robot9706/VirtualCameraDriver) mentions that the filter implemented in the driver contains a property with a GUID that I can send buffer to.

    


    I was wondering if anyone know of a javascript/node.js library, ffmpeg/gstreamer command, or any solution that comes to mind that can allow me to send video data to that GUID. I have tried outputting the RTSP stream to a videosink with g-streamer but I was unable to specify the display name for the output to be directed to.

    


    With ffmpeg, I was able to find the driver info with DShow but I can only implement the driver as an video input and I'm unable to select the driver as an output through DShow. If there is an gstreamer/ffmpeg solution, please let me know as I'm inexperienced with video streaming and I have looked through many threads here but I'm unable to find an answer.

    


Navigation