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Médias (29)

Mot : - Tags -/Musique

Autres articles (58)

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

Sur d’autres sites (4004)

  • How to include vtt file in m3u8 file [closed]

    20 octobre 2020, par Noweh

    I'm trying to include a .VTT file in an already generated m3u8 file.

    


    the translation file is uploaded separately on the server.

    


    I am therefore trying to merge everything live after the upload.

    


    I tried some commands with ffmpeg without success.

    


    My files :

    


      

    • subtitles.vtt

      • 


    • out.m3u8

      • 


    • v0/

      • 


    • v0_index.m3u8

      • 


    • ...

      • 


    


    out.m3u8 contains :

    


    #EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=655600,RESOLUTION=640x360,CODECS="avc1.4d401e,mp4a.40.2"
v0_index.m3u8

#EXT-X-STREAM-INF:BANDWIDTH=1449112,RESOLUTION=842x480,CODECS="avc1.4d401e,mp4a.40.2"
v1_index.m3u8

...


    


    could you help me to merge those files ?

    


    Thanks.

    


  • Problem in the audio file created by converting the wav audio file to amr-wb using ffmpeg

    31 juillet 2019, par starlord

    I want to compress the wav audio file for which I am converting it into amr-wb file (not using simple amr because I need better quality audio files).

    For a few audio files there is some noise after conversion (wav file to amr-wb file with 16k Hz sampling rate and 12.65kbits/s bit rate) due to which android music player is crashing while playing these files.

    But if I convert these audio files with sampling rate of 16k Hz and 19.85kbits/s then the audio file is playing on android but increasing the file size by 30-40%.

    What is the reason of this behavior and how to create compressed amr audio file with maximum quality ?

    The command used to create the amr file :

    ffmpeg -i "0.wav"   -acodec libvo_amrwbenc -ar 16000 -ab 12.65k   "0.amr"

    Also is there a tool to check the validity of headers of amr audio file ?

  • How to know if uploaded file is a video file [closed]

    20 octobre 2012, par Gage Thomson

    Possible Duplicate :
    How do I validate that an uploaded file is a video ?

    How to know using exec with ffmpeg and php if the uploaded file or any file on the hard disk is a video or not ?

    Turned out to use finfo for checking the mime, unsure if it is the best solution, but it appears everyone is happy by giving down votes instead of reasoning.

    Well, some of my videos have a mime of application octet-stream which makes finfo not the solution, LIKE I ASKED. I suppose with ffmpeg there might be an is_video() function somehow just that I couldn't find it.

    Trouble : http://mimeapplication.net/octet-stream

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