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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
Autres articles (112)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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 (...)
Sur d’autres sites (15995)
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FFmpeg process killed when press poweroff button
11 avril 2018, par dastanI am using the WritingMinds/ffmpeg-android-java library for ffmpeg. When I press the Power button of Asus T00J (4.4), the ffmpeg process is canceled. How can I prevent process to being killed ?
process = shellCommand.run(cmd);
The only solution I have in my mind is to recompile ffmpeg with all supported libraries in the shared library format (.so) instead of the executable binary and write JNI to access the ffmpeg main method. But it will take so much time. So, I am looking for alternative solutions.
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imdct15 : replace the FFT with a faster PFA FFT algorithm
4 janvier 2017, par Rostislav Pehlivanovimdct15 : replace the FFT with a faster PFA FFT algorithm
This commit replaces the current inefficient non-power-of-two FFT with a
much faster FFT based on the Prime Factor Algorithm.
Although it is already much faster than the old algorithm without SIMD,
the new algorithm makes use of the already very throughouly SIMD’d power
of two FFT, which improves performance even more across all platforms
which we have SIMD support for.Most of the work was done by Peter Barfuss, who passed the code to me to
implement into the iMDCT and the current codebase. The code for a
5-point and 15-point FFT was derived from the previous implementation,
although it was optimized and simplified, which will make its future
SIMD easier. The 15-point FFT is currently using 6% of the current
overall decoder overhead.The FFT can now easily be used as a forward transform by simply not
multiplying the 5-point FFT’s imaginary component by -1 (which comes
from the fact that changing the complex exponential’s angle by -1 also
changes the output by that) and by multiplying the "theta" angle of the
main exptab by -1. Hence the deliberately left multiplication by -1 at
the end.FATE passes, and performance reports on other platforms/CPUs are
welcome.Performance comparisons :
iMDCT, PFA :
101127 decicycles in speed, 32765 runs, 3 skips
iMDCT, Old :
211022 decicycles in speed, 32768 runs, 0 skipsStandalone FFT, 300000 transforms of size 960 :
PFA Old FFT kiss_fft libfftw3f
3.659695s, 15.726912s, 13.300789s, 1.182222sBeing only 3x slower than libfftw3f is a big achievement by itself.
There appears to be something capping the performance in the iMDCT side
of things, possibly during the pre-stage reindexing. However, it is
certainly fast enough for now.Signed-off-by : Rostislav Pehlivanov <atomnuker@gmail.com>
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libavcodec/ppc/hpeldsp_altivec.c : fix ff_put_pixels16_altivec() put_no_rnd_pixels16_...
7 novembre 2014, par Rong Yanlibavcodec/ppc/hpeldsp_altivec.c : fix ff_put_pixels16_altivec() put_no_rnd_pixels16_xy2_altivec() put_no_rnd_pixels8_xy2_altivec() avg_pixels8_altivec() avg_pixels8_xy2_altivec() put_pixels16_xy2_altivec() put_pixels8_xy2_altivec() ff_avg_pixels16_altivec() for POWER LE
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>