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Autres articles (2)
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Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...) -
Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...)
Sur d’autres sites (1933)
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Evolution #3962 : Générer des JPEG progressifs
18 juin 2017, par Michel BystranowskiMmm, ça a l’air un peu plus compliqué qu’au premier abord effectivement. J’ai trouvé cet article qui compare le taux de compression et recommande de ne le faire que pour les fichiers de plus de 10k, sous peine d’obtenir des fichiers plus gros (https://yuiblog.com/blog/2008/12/05/imageopt-4/). Du coup il faudrait s’arranger pour ne cibler que les gros JPEGs.
Par côté compatibilité des navigateurs ça semble ok pour tous les navigateurs récents (https://en.wikipedia.org/wiki/Comparison_of_layout_engines_%28graphics%29#JPEG_support).
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What H.264 encoding profile is considered "safe" in 2017 ?
12 avril 2017, par degenerateHave streaming services adopted a certain H.264 profile as "standard" or "safe" for use in 2017 ? For example are all modern Youtube videos at least "High" profile for H.264 ?
Or does Youtube continue to serve all encoding profiles, down to "Baseline" depending on hardware ?
I would like to start encoding my videos with "High" profile or higher, but cannot find any recent documentation on which profile is standard practice or safe to use.
Searching google is not fruitful :
Old blog post from 2008 :
http://blog.mediacoderhq.com/h264-profiles-and-levels/Old blog post from 2014 :
http://leightronix.com/blog/when-to-choose-high-main-and-baseline-while-encoding-h-264/I cannot find any updated 2017 information on this.
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Trying to convert an mp3 file to a Numpy Array, and ffmpeg just hangs
5 juillet 2016, par RichI’m working on a music classification methodology with Scikit-learn, and the first step in that process is converting a music file to a numpy array.
After unsuccessfully trying to call ffmpeg from a python script, I decided to simply pipe the file in directly :
FFMPEG_BIN = "ffmpeg"
cwd = (os.getcwd())
dcwd = (cwd + "/temp")
if not os.path.exists(dcwd): os.makedirs(dcwd)
folder_path = sys.argv[1]
f = open("test.txt","a")
for f in glob.glob(os.path.join(folder_path, "*.mp3")):
ff = f.replace("./", "/")
print("Name: " + ff)
aa = (cwd + ff)
command = [ FFMPEG_BIN,
'-i', aa,
'-f', 's16le',
'-acodec', 'pcm_s16le',
'-ar', '22000', # ouput will have 44100 Hz
'-ac', '1', # stereo (set to '1' for mono)
'-']
pipe = sp.Popen(command, stdout=sp.PIPE, bufsize=10**8)
raw_audio = pipe.proc.stdout.read(88200*4)
audio_array = numpy.fromstring(raw_audio, dtype="int16")
print (str(audio_array))
f.write(audio_array + "\n")The problem is, when I run the file, it starts ffmpeg and then does nothing :
[mp3 @ 0x1446540] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from '/home/don/Code/Projects/MC/Music/Spaz.mp3':
Metadata:
title : Spaz
album : Seeing souns
artist : N*E*R*D
genre : Hip-Hop
encoder : Audiograbber 1.83.01, LAME dll 3.96, 320 Kbit/s, Joint Stereo, Normal quality
track : 5/12
date : 2008
Duration: 00:03:50.58, start: 0.000000, bitrate: 320 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
Output #0, s16le, to 'pipe:':
Metadata:
title : Spaz
album : Seeing souns
artist : N*E*R*D
genre : Hip-Hop
date : 2008
track : 5/12
encoder : Lavf56.4.101
Stream #0:0: Audio: pcm_s16le, 22000 Hz, mono, s16, 352 kb/s
Metadata:
encoder : Lavc56.1.100 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (native) -> pcm_s16le (native))
Press [q] to stop, [?] for helpIt just sits there, hanging, for far longer than the song is. What am I doing wrong here ?,