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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
Autres articles (55)
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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 -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
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 (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (10859)
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Trouble with the ffmpeg -ss flag when capturing one frame from a Macbook iSight webcam
1er mars 2014, par AndyFor about five years I've used ffmpeg in a shell script to grab one frame from my linux'd-up Macbook's iSight :
ffmpeg -f video4linux2 -s 640x480 -r 15 -i /dev/video0 -an -vframes 1 -vcodec mjpeg -y -sameq -ss 1.5 snapshot.jpg
I just upgraded my Ubuntu distro from Lucid to Natty (ffmpeg ver. 0.6.2-4:0.6.2-1ubuntu1).
Now that syntax turns the iSight on but hangs indefinitely.[output snipped, ending with:]
frame= 0 fps= 0 q=0.0 Lsize= -0kB time=10000000000.00 bitrate= -0.0kbits/s
video:0kB audio:0kB global headers:0kB muxing overhead -inf%Without the '-ss' flag it seems to successfully grab the first frame and exit immediately - the only difference in output being :
frame= 1 fps= 0 q=0.0 Lsize= -0kB time=0.07 bitrate= -2.6kbits/s
video:16kB audio:0kB global headers:0kB muxing overhead -100.132730%However, the '-ss 1.5' was necessary to delay the frame capture by 1.5 seconds to allow the cam sufficient time to adjust the exposure.
The -itsoffset flag seemed promising, but doesn't seem to change ffmpeg's behavior (ie doesn't hang, but no delay).
Any ideas ?
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Revision e337322e63 : Merge "improved speed of 4x4 sse2 fdct."
5 mars 2014, par Andrew RussellMerge "improved speed of 4x4 sse2 fdct."
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Revision a46f5459c3 : improved speed of 4x4 sse2 fdct. * speed improvment of 30 percent achieved * mu
3 mars 2014, par Andrew RussellChanged Paths :
Modify /vp9/encoder/x86/vp9_dct_sse2.c
improved speed of 4x4 sse2 fdct.* speed improvment of 30 percent achieved
* multiplies and adds remain the same
* non-arithmetic instructions minimized by hand, by :
-expanding 2 pass loop
-removing irrelivant "shuffles"
-combining last two rounding steps
* further improvments may be possibleChange-Id : Idec2c3f52910c48e6a0e0f9aefed5cae31b0b8c0