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• Anomalie #3576 : a travaillé sur cet article ...

  8 novembre 2015, par b b

  Ok, le problème est dans inc_marquer_doublons_doc_dist() qui appelle bien trois fois l’édition de liens, ce qui déclenche le pipeline revisions_post_edition_lien :

  http://zone.spip.org/trac/spip-zone/browser/_core_/plugins/medias/inc/marquer_doublons_doc.php#L74

  Deux solutions :
  - modifier marquer_doublons pour qu’elle ne modifie les liens que quand il y a modification
  - modifier le code du pipeline revisions_post_edition_lien

  Avec la première on corrige le problème à la source...

• FFMPEG android is processing slow

  23 novembre 2015, par jpc

  I’m using https://github.com/WritingMinds/ffmpeg-android-java as my framework for FFMPEG

  I’m trying to convert an image to a video using this command

  ffmpeg -y -loop 1 -i input.jpg -strict -2 -vcodec mpeg4 -t 5 -pix_fmt yuv420p out.mp4

  It took about 32 seconds to finish the process which is very slow for my requirements.

  Is there a way to speed this up ? I’m thinking of something around 5 seconds, perhaps approximately equal to the specified length of the video

  here’s the log btw

  11-23 12:12:13.587 4228-4228/com.lo.and.dev W/com.lo.and.util: WARNING: linker: /data/data/com.lo.and.dev/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   libavutil      54.  7.100 / 54.  7.100
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   libavcodec     56.  1.100 / 56.  1.100
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   libavformat    56.  4.101 / 56.  4.101
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   libavdevice    56.  0.100 / 56.  0.100
  
  11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util:   libavfilter     5.  1.100 /  5.  1.100
  
  11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util:   libswscale      3.  0.100 /  3.  0.100
  
  11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util:   libswresample   1.  1.100 /  1.  1.100
  
  11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util:   libpostproc    53.  0.100 / 53.  0.100
  
  11-23 12:12:13.707 4228-4228/com.lo.and.dev W/com.lo.and.util: Input #0, image2, from '/storage/emulated/0/DCIM/Camera/20151122_172809.jpg':
  
  11-23 12:12:13.707 4228-4228/com.lo.and.dev W/com.lo.and.util:   Duration: 00:00:00.04, start: 0.000000, bitrate: 95165 kb/s
  
  11-23 12:12:13.717 4228-4228/com.lo.and.dev W/com.lo.and.util:     Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  11-23 12:12:13.727 4228-4228/com.lo.and.dev W/com.lo.and.util: [swscaler @ 0xb5d89000] deprecated pixel format used, make sure you did set range correctly
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Output #0, mp4, to '/storage/emulated/0/DCIM/out.mp4':
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:   Metadata:
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:     encoder         : Lavf56.4.101
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:     Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:     Metadata:
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:       encoder         : Lavc56.1.100 mpeg4
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Stream mapping:
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util:   Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
  
  11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Press [q] to stop, [?] for help
  
  11-23 12:12:14.707 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=    3 fps=0.0 q=2.0 size=     343kB time=00:00:00.12 bitrate=23400.5kbits/s    
  
  11-23 12:12:15.247 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=    5 fps=4.2 q=4.9 size=     345kB time=00:00:00.20 bitrate=14125.9kbits/s    
  
  11-23 12:12:15.737 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=    7 fps=4.0 q=10.2 size=     347kB time=00:00:00.28 bitrate=10149.8kbits/s    
  
  11-23 12:12:16.467 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   10 fps=4.1 q=18.9 size=     350kB time=00:00:00.40 bitrate=7167.7kbits/s    
  
  11-23 12:12:17.037 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   12 fps=4.0 q=24.8 size=     352kB time=00:00:00.48 bitrate=6007.9kbits/s    
  
  11-23 12:12:17.567 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   14 fps=3.9 q=27.8 size=     403kB time=00:00:00.56 bitrate=5893.7kbits/s    
  
  11-23 12:12:18.337 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   17 fps=4.0 q=31.0 size=     406kB time=00:00:00.68 bitrate=4891.5kbits/s    
  
  11-23 12:12:18.847 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   19 fps=3.9 q=31.0 size=     408kB time=00:00:00.76 bitrate=4398.6kbits/s    
  
  11-23 12:12:19.607 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   22 fps=3.9 q=31.0 size=     411kB time=00:00:00.88 bitrate=3827.4kbits/s    
  
  11-23 12:12:20.107 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   24 fps=3.9 q=31.0 size=     413kB time=00:00:00.96 bitrate=3525.9kbits/s    
  
  11-23 12:12:20.637 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   26 fps=3.9 q=31.0 size=     460kB time=00:00:01.04 bitrate=3624.3kbits/s    
  
  11-23 12:12:21.157 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   28 fps=3.9 q=31.0 size=     462kB time=00:00:01.12 bitrate=3381.1kbits/s    
  
  11-23 12:12:21.667 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   30 fps=3.9 q=31.0 size=     464kB time=00:00:01.20 bitrate=3169.7kbits/s    
  
  11-23 12:12:22.167 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   32 fps=3.9 q=31.0 size=     466kB time=00:00:01.28 bitrate=2984.6kbits/s    
  
  11-23 12:12:22.897 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   35 fps=3.9 q=31.0 size=     469kB time=00:00:01.40 bitrate=2746.8kbits/s    
  
  11-23 12:12:23.657 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   38 fps=3.9 q=31.0 size=     517kB time=00:00:01.52 bitrate=2788.3kbits/s    
  
  11-23 12:12:24.387 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   41 fps=4.0 q=31.0 size=     521kB time=00:00:01.64 bitrate=2600.1kbits/s    
  
  11-23 12:12:24.887 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   43 fps=3.9 q=31.0 size=     523kB time=00:00:01.72 bitrate=2488.9kbits/s    
  
  11-23 12:12:25.417 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   45 fps=3.9 q=31.0 size=     525kB time=00:00:01.80 bitrate=2387.6kbits/s    
  
  11-23 12:12:25.967 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   47 fps=3.9 q=31.0 size=     527kB time=00:00:01.88 bitrate=2294.9kbits/s    
  
  11-23 12:12:26.477 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   49 fps=3.9 q=24.8 size=     572kB time=00:00:01.96 bitrate=2390.0kbits/s    
  
  11-23 12:12:27.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   52 fps=3.9 q=31.0 size=     577kB time=00:00:02.08 bitrate=2271.5kbits/s    
  
  11-23 12:12:27.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   55 fps=3.9 q=31.0 size=     580kB time=00:00:02.20 bitrate=2159.1kbits/s    
  
  11-23 12:12:28.737 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   58 fps=3.9 q=31.0 size=     583kB time=00:00:02.32 bitrate=2058.2kbits/s    
  
  11-23 12:12:29.247 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   60 fps=3.9 q=31.0 size=     585kB time=00:00:02.40 bitrate=1996.6kbits/s    
  
  11-23 12:12:30.017 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   63 fps=3.9 q=31.0 size=     633kB time=00:00:02.52 bitrate=2057.7kbits/s    
  
  11-23 12:12:30.557 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   65 fps=3.9 q=31.0 size=     635kB time=00:00:02.60 bitrate=2000.8kbits/s    
  
  11-23 12:12:31.057 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   67 fps=3.9 q=31.0 size=     637kB time=00:00:02.68 bitrate=1947.4kbits/s    
  
  11-23 12:12:31.627 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   69 fps=3.9 q=31.0 size=     639kB time=00:00:02.76 bitrate=1897.0kbits/s    
  
  11-23 12:12:32.167 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   71 fps=3.9 q=31.0 size=     641kB time=00:00:02.84 bitrate=1849.5kbits/s    
  
  11-23 12:12:32.927 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   74 fps=3.9 q=31.0 size=     689kB time=00:00:02.96 bitrate=1907.2kbits/s    
  
  11-23 12:12:33.407 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   76 fps=3.9 q=31.0 size=     691kB time=00:00:03.04 bitrate=1862.8kbits/s    
  
  11-23 12:12:34.157 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   79 fps=3.9 q=31.0 size=     694kB time=00:00:03.16 bitrate=1800.0kbits/s    
  
  11-23 12:12:34.657 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   81 fps=3.9 q=31.0 size=     696kB time=00:00:03.24 bitrate=1760.7kbits/s    
  
  11-23 12:12:35.217 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   83 fps=3.9 q=31.0 size=     698kB time=00:00:03.32 bitrate=1723.3kbits/s    
  
  11-23 12:12:35.777 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   85 fps=3.9 q=24.8 size=     744kB time=00:00:03.40 bitrate=1791.6kbits/s    
  
  11-23 12:12:36.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   87 fps=3.9 q=31.0 size=     747kB time=00:00:03.48 bitrate=1759.6kbits/s    
  
  11-23 12:12:36.827 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   89 fps=3.9 q=31.0 size=     750kB time=00:00:03.56 bitrate=1724.8kbits/s    
  
  11-23 12:12:37.547 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   92 fps=3.9 q=31.0 size=     753kB time=00:00:03.68 bitrate=1675.4kbits/s    
  
  11-23 12:12:38.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   95 fps=3.9 q=31.0 size=     756kB time=00:00:03.80 bitrate=1629.1kbits/s    
  
  11-23 12:12:38.797 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=   97 fps=3.9 q=24.8 size=     801kB time=00:00:03.88 bitrate=1690.8kbits/s    
  
  11-23 12:12:39.547 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  100 fps=3.9 q=31.0 size=     806kB time=00:00:04.00 bitrate=1650.2kbits/s    
  
  11-23 12:12:40.047 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  102 fps=3.9 q=31.0 size=     808kB time=00:00:04.08 bitrate=1621.9kbits/s    
  
  11-23 12:12:40.807 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  105 fps=3.9 q=31.0 size=     811kB time=00:00:04.20 bitrate=1581.6kbits/s    
  
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  11-23 12:12:42.057 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  110 fps=3.9 q=31.0 size=     861kB time=00:00:04.40 bitrate=1602.8kbits/s    
  
  11-23 12:12:42.557 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  112 fps=3.9 q=31.0 size=     863kB time=00:00:04.48 bitrate=1578.1kbits/s    
  
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  11-23 12:12:45.277 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  123 fps=3.9 q=31.0 size=     919kB time=00:00:04.92 bitrate=1530.6kbits/s    
  
  11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  125 fps=3.9 q=31.0 size=     921kB time=00:00:05.00 bitrate=1509.4kbits/s    
  
  11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame=  125 fps=3.9 q=31.0 Lsize=     923kB time=00:00:05.00 bitrate=1511.6kbits/s    
  
  11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: video:921kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.148301%

• Catalyst Open Source Academy

  16 janvier 2015, par Matthieu Aubry — Community

  The Open Source Academy is an initiative designed to provide training and work experience for young New Zealand technologists. Catalyst organises the Academy to show young technologists how to participate in open source communities and to fully explore their passion for IT through freely available open source tools.

  It has been running annually since 2011. We are proud that Piwik project could participate in the Academy again this year !

  What students got done

  It’s amazing what a few young students can get done in four days of participating in an open source project like Piwik ! They were able to quickly get started with Piwik, and continued to make useful contributions to the Piwik analytics platform.

  New Darkness theme

  Liam has created a new dark theme for Piwik called Darkness.

  

  To create the theme, Liam had to improve Piwik core stylesheets and created this pull request : Reuse the LESS variable for white color across all stylesheets.

  Accessibility improvements

  We were lucky to spend time with Julius, a Catalyst employee who is blind. He showed us in great detail how difficult and time consuming it can be for a blind user to use Piwik. For example we noticed how complicated it was for Julius to navigate the menus, to get to the main content, and to use the calendar and the Website selector. During this presentation we also noticed that Piwik was not yet usable with the keyboard.

  As a result of this session with Julius we got to work with the students to improve accessibility in Piwik.

  

  (photo source)

  List of accessibility improvements

  All these pull requests were created by the students and have been successfully merged into Piwik :

  • see the focus of menu items when tabbing through the page
  • Tweaks to improve accessibility (section around graph, better tooltip, set language in html)
  • Added h3 tags to widget headers
  • when main Menu is focused, display submenu
  • Add “Skip to content” feature when user presses tab key
  • Improved accessibility by putting offscreen text in the widget title

  To learn more about accessibility in Piwik check out this issue on our tracker.

  Summary

  Working with young students was fun and interesting. We were excited to see how much they got done in such a short time !

  At Piwik and Piwik PRO we are committed to building the best open analytics platform, and we will continue to support students who want to take part in the Piwik adventure.

  Be well,