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Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe 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" ; -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP 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 (...)
Sur d’autres sites (14149)
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How to make ffmpeg write its output to a named pipe
15 septembre 2015, par Bastian35022I know i can make
ffmpeg
put its output tostdout
andstderr
usingpipe:1
andpipe:2
, respectively, asoutput_file
parameter. (Docs)But what about named pipes, can i make it write to one ?
If not, is there a way to redirect the data in
stdout
to a named pipe in Linux ? (something likeffmpeg <parameters> | pipe123</parameters>
)This question is a follow-up of this question.
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ffmpeg in Python subprocess - Unable to find a suitable output format for 'pipe :'
12 juillet 2016, par SpencerTrying to burn subs into video with ffmpeg via Python. Works fine in the command line, but when calling from Python subprocess with :
p = subprocess.Popen('cd ~/Downloads/yt/; ffmpeg -i ./{video} -vf subtitles=./{subtitles} {out}.mp4'.format(video=vid.replace(' ', '\ '), subtitles=subs, out='out.mp4'), shell=True)
I get :
Unable to find a suitable output format for 'pipe:'
Full traceback :
'ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2_1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libvpx --enable-libass --enable-libfdk-aac --enable-nonfree --enable-vda
libavutil 54. 27.100 / 54. 27.100
libavcodec 56. 41.100 / 56. 41.100
libavformat 56. 36.100 / 56. 36.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.100 / 1. 2.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './OnHub - a router for the new way to Wi-Fi-HNnfHP7VDP8.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf56.36.100
Duration: 00:00:53.94, start: 0.000000, bitrate: 2092 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1961 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
[NULL @ 0x7fc07b077600] Unable to find a suitable output format for 'pipe:'
pipe:: Invalid argument' -
ffmpeg output pipeing to named windows pipe
23 août 2015, par LucasThis question is related to my previous question : Converting raw frames into webm live stream
I want to pipe a video to ffmpeg and read it back through another pipe, but I cannot pipe the output of
ffmpeg.exe
to a named pipe on windows.My definition of the pipes in C# :
NamedPipeServerStream p_to_ffmpeg;
NamedPipeServerStream p_from_ffmpeg;
p_to_ffmpeg = new NamedPipeServerStream("to_ffmpeg", PipeDirection.Out, 1, PipeTransmissionMode.Byte);
p_from_ffmpeg = new NamedPipeServerStream("from_ffmpeg", PipeDirection.In, 1, PipeTransmissionMode.Byte);And then I start
ffmpeg.exe
in a separate process with the following options :-f rawvideo -vcodec rawvideo -video_size 656x492 -r 10 -pix_fmt rgb24 -i \\.\pipe\to_ffmpeg -c:v libvpx -pass 1 -f webm \\.\pipe\from_ffmpeg
ffmpeg.exe refuses to write to the pipe with the following error :
File '\\.\pipe\from_ffmpeg' already exists. Overwrite ? [y/N]
When I replace the "output pipe" with a file name, it works like charm :
-f rawvideo -vcodec rawvideo -video_size 656x492 -r 10 -pix_fmt rgb24 -i \\.\pipe\to_ffmpeg -c:v libvpx -pass 1 -f webm output.webm
How do I get ffmpeg to write to a named pipe in windows ?
Edit : When I force to write to the pipe with ffmpeg’s
-y
option, I get the following error :Could not write header for output file #0 (incorrect codec parameters ?): Error number -32 occurred