Recherche avancée

Médias (0)

Mot : - Tags -/utilisateurs

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (111)

  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (12049)

  • How to use FFTools to determine actual FPS of an RTMP stream

    17 mai 2016, par Dexter1759

    I’m trying to determine the best way to analyse any RTMP stream. I’m currently settled upon the FFMPEG suite of tools, however, I find myself in need of help before I drive myself crazy.

    I’m trying to validate a stream, I’ve been asked to determine the following :

    • Can I connect to the stream ? - this can be done easily with FFProbe
    • Is there video ? (i.e. it’s not all black) - I’ve managed to build a POC so don’t think this will be a problem.
    • Is there audio ? (i.e. not all silent) - Again, don’t think this is a problem based on my POC.
    • Actual FPS - here’s where I get stuck because the meta data shows 25fps and that’s what FFTools return.

    However, using FFPlay I can see the odd message of "no frame !" and would prefer to calculate the actual FPS for comparison.

    Any help/advice with this toolset would be useful.

    (Note : I’ve also had other issues/questions with this toolset but have started with this one rather than dump a list here)

    Many thanks.

    EDIT - Forgot to mention the stream is of a live feed so things like "duration" and "nb_frames" return "N/A"

  • Can't get ffmpeg to generate an MP4 file on iOS

    7 avril 2017, par user92238

    I’m having serious problems trying to get an iOS app to create an MP4 file from an RTSP stream using ffmpeg.

    I can open the stream, decode it, show the video on screen and play the live audio without any issues. The problems arise when I try to output the AV stream to a file.

    If I ask ffmpeg to create an MP4 file, it fails, informing me that the audio codec in the stream is incompatible with MP4 files. If I attempt to transcode the audio into acc, then ffmpeg lets me continue, but during the file output I get multiple "aac bitstream error" messages, and the recording is silent.

    I also tried having ffmpeg create a mov (Quicktime) file instead of MP4. If I do that, it seems to work : I get a mov file that plays back with audio. That being done, I tried to transcode the mov file to mp4 using AVAssetExportSession. But this doesn’t work : it reports that the decode failed.

    I’m not sure what to try next.

  • Silence out quiet periods in audio file with ffmpeg

    11 août 2015, par nolt2232

    I’m using ffmpeg to do some audio processing on phone calls. The raw calls have a left and right channel and my desired result is two mono files, one for each channel. I was able to use ffmpeg’s map_channel to split the file by channel but I’m noticing the resulting files have a bit of cross talk that I would like to remove.

    Each channel has the primary speaker talking very loud and clear but you can also hear the person from the other channel talking very quietly. I’d like to silence out these sections of the audio (i.e. make them perfectly silent but not remove them as I want to preserve the original length and pauses in the audio).

    Does ffmpeg have a filter I can use to convert periods of low volume (or some other measurement that would isolate these sections of the recording) into total silence ?

Navigation