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Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (98)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 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, parMultilang 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. -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)
Sur d’autres sites (10074)
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ffmpeg : Split MP3 in 1 second chunks fast ?
30 décembre 2019, par NikoI want to split mp3 into one second chunks fast. I have the mp3 already in memory (in crystal lang) and want to process it further (so I need it in memory after splitting). I got two possiblities working :
- Saving the file to ram disk, calling
ffmpeg -segment
on it, reading all the segement files into memory. - Piping the file into
ffprobe --show_frames
and parsing thepkt_pos
fields from the result.
Both are slow about one second due to unnescessary overhead. Writing to disk and reading hundrets of files in the first case, outputting a lot of unneeded information about a lot of unneeded frames in the second.
I see two possibilities to improve :
- a custom filter for
ffmpeg
that outputs the segements with a separator to stdout. - a custom filter for
ffprobe
similar to--show_frames
but with aframestep
parameter (the existing framestep filter only seems to work with video files) which outputs only the byte offset of the frames.
Perhaps I’m missing possibilites with the existing filters. Perhaps there is a tool better fitted for my needs than ffmpeg. I’d be happy for any hints.
- Saving the file to ram disk, calling
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lavc/hevc/parser : only split packets on NALUs with nuh_layer_id=0
7 juin 2024, par Anton Khirnov -
avcodec/utils : split side-data in new decode API too
28 avril 2016, par wm4avcodec/utils : split side-data in new decode API too
The deprecated avcodec_decode_video2() and avcodec_decode_audio4()
functions called av_packet_split_side_data() on the input packets. This
is required for packets produced by libavformat with the
AVFMT_FLAG_KEEP_SIDE_DATA flag unset (which is unfortunately the
default).The new API didn’t do this yet, although it didn’t matter as no decoder
supports the new API yet. The emulation layer for the old API calls the
old API functions, which took care of the splitting. Add this code to
the new API codec entrypoints too, because we shouldn’t send essentially
corrupted data to decoders.