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Autres articles (15)
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La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
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aarch64 : vp9itxfm : Do separate functions for half/quarter idct16 and idct32
22 novembre 2016, par Martin Storsjöaarch64 : vp9itxfm : Do separate functions for half/quarter idct16 and idct32
This work is sponsored by, and copyright, Google.
This avoids loading and calculating coefficients that we know will
be zero, and avoids filling the temp buffer with zeros in places
where we know the second pass won’t read.This gives a pretty substantial speedup for the smaller subpartitions.
The code size increases from 14740 bytes to 24292 bytes.
The idct16/32_end macros are moved above the individual functions ; the
instructions themselves are unchanged, but since new functions are added
at the same place where the code is moved from, the diff looks rather
messy.Before :
vp9_inv_dct_dct_16x16_sub1_add_neon : 236.7
vp9_inv_dct_dct_16x16_sub2_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub4_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub8_add_neon : 1051.0
vp9_inv_dct_dct_16x16_sub12_add_neon : 1387.4
vp9_inv_dct_dct_16x16_sub16_add_neon : 1387.6
vp9_inv_dct_dct_32x32_sub1_add_neon : 554.1
vp9_inv_dct_dct_32x32_sub2_add_neon : 5198.5
vp9_inv_dct_dct_32x32_sub4_add_neon : 5198.6
vp9_inv_dct_dct_32x32_sub8_add_neon : 5196.3
vp9_inv_dct_dct_32x32_sub12_add_neon : 6183.4
vp9_inv_dct_dct_32x32_sub16_add_neon : 6174.3
vp9_inv_dct_dct_32x32_sub20_add_neon : 7151.4
vp9_inv_dct_dct_32x32_sub24_add_neon : 7145.3
vp9_inv_dct_dct_32x32_sub28_add_neon : 8119.3
vp9_inv_dct_dct_32x32_sub32_add_neon : 8118.7After :
vp9_inv_dct_dct_16x16_sub1_add_neon : 236.7
vp9_inv_dct_dct_16x16_sub2_add_neon : 640.8
vp9_inv_dct_dct_16x16_sub4_add_neon : 639.0
vp9_inv_dct_dct_16x16_sub8_add_neon : 842.0
vp9_inv_dct_dct_16x16_sub12_add_neon : 1388.3
vp9_inv_dct_dct_16x16_sub16_add_neon : 1389.3
vp9_inv_dct_dct_32x32_sub1_add_neon : 554.1
vp9_inv_dct_dct_32x32_sub2_add_neon : 3685.5
vp9_inv_dct_dct_32x32_sub4_add_neon : 3685.1
vp9_inv_dct_dct_32x32_sub8_add_neon : 3684.4
vp9_inv_dct_dct_32x32_sub12_add_neon : 5312.2
vp9_inv_dct_dct_32x32_sub16_add_neon : 5315.4
vp9_inv_dct_dct_32x32_sub20_add_neon : 7154.9
vp9_inv_dct_dct_32x32_sub24_add_neon : 7154.5
vp9_inv_dct_dct_32x32_sub28_add_neon : 8126.6
vp9_inv_dct_dct_32x32_sub32_add_neon : 8127.2Signed-off-by : Martin Storsjö <martin@martin.st>
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lavf : Add an MPEG-DASH ISOFF segmenting muxer
6 octobre 2014, par Martin Storsjölavf : Add an MPEG-DASH ISOFF segmenting muxer
This is mostly to serve as a reference example on how to segment
the output from the mp4 muxer, capable of writing the segment
list in four different ways :SegmentTemplate with SegmentTimeline
SegmentTemplate with implicit segments
SegmentList with individual files
SegmentList with one single file per track, and byte ranges
The muxer is able to serve live content (with optional windowing)
or create a static segmented MPD.In advanced cases, users will probably want to do the segmenting
in their own application code.Signed-off-by : Martin Storsjö <martin@martin.st>
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lavu : add an API function to return the Libav version string
2 juillet 2015, par wm4lavu : add an API function to return the Libav version string
This returns something like "v12_dev0-1332-g333a27c". This is much more
useful than the individual library versions, of which there are too
many, and which are very hard to map back to releases or git commits.Signed-off-by : Janne Grunau <janne-libav@jannau.net>