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Médias (3)

Mot : - Tags -/Valkaama

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  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5536)

  • ffmpeg - Not outputting Opus audio

    3 mars 2016, par Dustin

    I’m currently writing a small script that coverts an MP4 to Opus audio on the fly and sends it to Discord in golang. Initially my script would pass an MP4 as it was downloading to ffmpeg through stdin and then pass stdout to an Opus encoder, then to Discord (exactly like this). After learning I could build ffmpeg with Opus, I’d like to cut out the opus encoder I previous had and pass ffmpeg’s output directly to Discord.

    Previous, my ffmpeg command looked like this (with using the second opus encoder)

    ffmpeg -i - -f s16le -ar 48000 -ac 2 pipe:1

    Now, without the encoder and letting ffmpeg do all the work, this is what I’ve come up with so far.

    ffmpeg -i - -f s16le -ar 48000 -ac 2 -acodec libopus -b:a 192k -vbr on -compression_level 10 pipe:1

    With this command however the audio doesn’t get accepted by Discord’s server, meaning I’m suspecting opus audio isn’t coming out the other end. No errors outputted. Have I done something wrong with ffmpeg that could of caused this ?

  • Not outputting Opus raw audio

    3 mars 2016, par Dustin

    I’m currently writing a small script that coverts an MP4 to Opus audio on the fly and sends it to Discord in golang. Initially my script would pass an MP4 as it was downloading to ffmpeg through stdin and then pass stdout to an Opus encoder, then to Discord (exactly like this). After learning I could build ffmpeg with Opus, I’d like to cut out the opus encoder I previous had and pass ffmpeg’s output directly to Discord.

    Previous, my ffmpeg command looked like this (with using the second opus encoder)

    ffmpeg -i - -f s16le -ar 48000 -ac 2 pipe:1

    Now, without the encoder and letting ffmpeg do all the work, this is what I’ve come up with so far.

    ffmpeg -i - -f s16le -ar 48000 -ac 2 -acodec libopus -b:a 192k -vbr on -compression_level 10 pipe:1

    With this command however the audio doesn’t get accepted by Discord’s server, meaning I’m suspecting opus audio isn’t coming out the other end. No errors outputted. Have I done something wrong with ffmpeg that could of caused this ?

  • Ffmpeg burnt in subtitles out of sync when converting to hls

    19 mai 2020, par user1503606

    I have a file that has subtitles burn into it and they are perfectly in sync.

    



    Here is the file. https://983yqbz442.s3.amazonaws.com/little-mermaid-captions.mp4

    



    I run this command to convert to hls and it creates the .ts files and the .vtt files.

    



    ffmpeg -i little-mermaid-captions.mp4 -profile:v baseline -level 3.0 -s 640x360 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8


    



    I also then create a master.m3u8 file in the same folder with the following.

    



    #EXTM3U
#EXT-X-VERSION:3
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-STREAM-INF:BANDWIDTH=800000,RESOLUTION=640x360,SUBTITLES="subtitles"
index.m3u8
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subtitles",NAME="English",DEFAULT=YES,AUTOSELECT=YES,FORCED=NO,LANGUAGE="ENG",URI="index_vtt.m3u8"


    



    Now if I play the master.m3u8 file the subtitles are now out of sync and are about 1 sec to quick. I understand this is probably a setting I am missing through FFmpeg but really stuck on this and would appreciate any insight.

    



    Thanks

    



    More info.

    



    Here is a link to the direct .m3u8 this can be opened in Safari.

    



    https://983yqbz442.s3.amazonaws.com/hlstests/master.m3u8

    



    The generated vtt file is here.

    



    https://983yqbz442.s3.amazonaws.com/hlstests/subs-0.vtt

    



    If you look at the start of the .vtt file you will see this.

    



    WEBVTT

00:06.840 --> 00:10.320
once long ago in the deep blue below


    



    It should start at 00:06.840 but when playing the .m3u8 file in Safari you should see it starts at around 5 seconds not 6 about a second too early.

    


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