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Autres articles (52)
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MediaSPIP Core : La Configuration
9 novembre 2010, parMediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...) -
Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
Récupération du script
Le script d’installation peut être récupéré de deux manières différentes.
Via svn en utilisant la commande pour récupérer le code source à jour :
svn co (...) -
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
Sur d’autres sites (9772)
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Is there any way to edit just the metadata of an AVI file, like mkvpropedit does with MKV files ?
20 juillet 2016, par hmj6jmhI am trying to swap the order of 2 audio tracks of an AVI file using
ffmpeg.ffmpeg -i "infile.avi" -map 0:0 -map 0:2 -map 0:1 -c copy "outfile.avi"This works but the file is being re-encoded, not copied. It takes much longer than a straight copy to finish and the resulting file is larger than the original.
Is there any way to edit just the metadata of an AVI file, like mkvpropedit does with MKV files ? Command line tool preferred.
General
Complete name : infile.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 451 MiB
Duration : 43mn 11s
Overall bit rate : 1 460 Kbps
Writing application : VirtualDubMod 1.5.10.2 (build 2540/release)
Writing library : VirtualDubMod build 2540/release
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Advanced Simple@L5
Format settings, BVOP : 3
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (MPEG)
Muxing mode : Packed bitstream
Codec ID : XVID
Codec ID/Hint : XviD
Duration : 43mn 11s
Bit rate : 1 190 Kbps
Width : 656 pixels
Height : 368 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.206
Stream size : 367 MiB (82%)
Writing library : XviD 1.2.1 (UTC 2008-12-04)
Audio #1
ID : 1
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Codec ID : 55
Codec ID/Hint : MP3
Duration : 43mn 11s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel count : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 39.5 MiB (9%)
Alignment : Aligned on interleaves
Interleave, duration : 42 ms (1.00 video frame)
Interleave, preload duration : 504 ms
Writing library : LAME3.98r
Encoding settings : -m s -V 4 -q 2 -lowpass 17 -b 128
Audio #2
ID : 2
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Codec ID : 55
Codec ID/Hint : MP3
Duration : 43mn 11s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel count : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 39.5 MiB (9%)
Alignment : Aligned on interleaves
Interleave, duration : 42 ms (1.00 video frame)
Interleave, preload duration : 504 ms
Writing library : LAME3.98r
Encoding settings : -m s -V 4 -q 2 -lowpass 17 -b 128 -
avcodec : Remove libaacplus
24 janvier 2016, par Timothy Guavcodec : Remove libaacplus
TODO : bump minor
It’s inferior in quality to fdk-aac and has an arguably more problematic
license.As early as 2012, a HydrogenAudio user reported :
> It has however one huge advantage : much better quality at low bitrates than
> faac and libaacplus.I myself have made a few spectrograms for a comparison of the two
encoders as well. The FDK output is consistently better than the
libaacplus one, in all bitrates I tested.libaacplus license is 3GPP + LGPLv2. 3GPP copyright notice is completely
proprietory, as follows :> No part may be reproduced except as authorized by written permission.
>
> The copyright and the foregoing restriction extend to reproduction in
> all media.
>
> © 2008, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC).
>
> All rights reserved.(The latest 26410-d00 zip from 3GPP has the same notice, but the copyright
year is changed to 2015)The copyright part of the FDK AAC license (section 2) is a copyleft
license that permits redistribution under certain conditions (and
therefore the LGPL + libfdk-aac combination is not prohibited by
configure) :> Redistribution and use in source and binary forms, with or without
> modification, are permitted without payment of copyright license fees
> provided that you satisfy the following conditions :
>
> You must retain the complete text of this software license in
> redistributions of the FDK AAC Codec or your modifications thereto in
> source code form.
>
> You must retain the complete text of this software license in the
> documentation and/or other materials provided with redistributions of
> the FDK AAC Codec or your modifications thereto in binary form.
>
> You must make available free of charge copies of the complete source
> code of the FDK AAC Codec and your modifications thereto to recipients
> of copies in binary form.
>
> The name of Fraunhofer may not be used to endorse or promote products
> derived from this library without prior written permission.
>
> You may not charge copyright license fees for anyone to use, copy or
> distribute the FDK AAC Codec software or your modifications thereto.
>
> Your modified versions of the FDK AAC Codec must carry prominent
> notices stating that you changed the software and the date of any
> change. For modified versions of the FDK AAC Codec, the term
> "Fraunhofer FDK AAC Codec Library for Android" must be replaced by the
> term "Third-Party Modified Version of the Fraunhofer FDK AAC Codec
> Library for Android." -
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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