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Autres articles (47)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Les vidéos
21 avril 2011, parComme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
Sur d’autres sites (4466)
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Converting FLAC to AAC outputs no sound using ffmpeg
29 décembre 2023, par AleksandarI am trying to convert a FLAC audio input file to AAC using
ffmpeg
, but the output.aac
seems to have no sound when opening in VLC. The input container is a.mka
containing only the one single audio stream.

I am using this command :


ffmpeg -i en.mka -c:a aac -b:a 512k -map 0:a:0 en4.aac


I tried with
map -0
and both320k
and512k
- nothing seems to produce an output file with sound and VLC seemingly can't even determine the length of the file constantly shifting how long it is ?

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avformat/mxfdec : Detect XYZ pixel format for digital cinema files
4 mars 2015, par Vilius Grigaliūnasavformat/mxfdec : Detect XYZ pixel format for digital cinema files
While the native jpeg2000 decoder can determine pixel format correctly
from the codestream, libopenjpeg wrapper cannot. To make sure that
the output is correct when using libopenjpeg to decode digital
cinema files, we do detection from the metadata included in the MXF
wrapper.If the container has "JPEG 2000 Coding Parameters" metadata element
with Rsiz value set to one of digital cinema profiles, we can safely
assume that the given input file is DCI compliant, therefore the
pixel format should be XYZ.Reviewed-by : Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by : Michael Niedermayer <michaelni@gmx.at> -
ffmpeg connection reset by peer
8 mars 2015, par Quentin SpottiswoodeI have a problem when using ffmpeg :
quite often my clients will have slightly dodgy internet connections but they subscribe to a service which is designed to record a stream that they are hosting, and record it for hosting on something like a wordpress site.
ffmpeg is called by a python script. I would like, ideally, to know if ffmpeg will throw an exception or return a value that can be accessed by the python script and used as a variable to determine if there was a problem recording the audio.
at the moment python calls ffmpeg using :
os.system('ffmpeg -i [stream address] -t 1:00 -acodec copy ')
when I simulate a connection loss (turning off the NIC on the virtual machine) ffmpeg prints to the terminal
Connection reset by peer