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--- projects:nogold [2011/11/18 16:44] – 79.132.232.142
+++ projects:nogold [2013/09/03 15:17] (current) – [Ubuntu bugs and other things] Julien Deswaef
@@ Line 1: / Line 1: @@
 ===== Nogold =====
+==== Streaming server ====
+Gstreamer + Icecast2
+Stream a Xwindow into an Icecast server:
+<code=bash>gst-launch ximagesrc ! videoscale ! video/x-raw-rgb,width=720,height=576 ! \
+    ffmpegcolorspace ! theoraenc quality=16 ! oggmux ! \
+    shout2send ip=localhost port=8000 password=hackme mount=test.ogg</code>
+Theoraenc quality goes from 0 (bad) to 63 (excellent).
+Stream a Fluxus window to icecast:
+<code=bash>gst-launch ximagesrc xname="fluxus scratchpad 0.18" ! \
+    ffmpegcolorspace ! theoraenc quality=16 ! oggmux ! \
+    shout2send ip=localhost port=8000 password=hackme mount=test.ogg</code>
+Stream from a video capture card to icecast:
+<code=bash>gst-launch v4l2src ! videoscale ! video/x-raw-yuv,width=768,height=576 ! \
+    ffmpegcolorspace ! theoraenc quality=16 ! oggmux ! \
+    shout2send ip=localhost port=8000 password=hackme mount=test.ogg</code>
+Launch VLC with no interface, fullscreen, without OnScreenDisplay and cropped (left+top+right+bottom)
+<code=bash>cvlc -f --no-osd --crop 0+2+400+300 http://localhost:8000/test.ogg</code>
+==== Ubuntu bugs and other things ====
+=== White screen on second, third and fourth monitor ===
+Especially with multiple sessions of Xwindow and Xinerama **disabled**.\\
+BUG: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/885989 \\
+Nautilus is buggy. Replaced with Thunar.
+:!: Removing Nautilus from a clean Ubuntu will remove gnome-session and break the desktop. You don't want that. To keep a working gnome-session, I added the gnome3 ppa before removing nautilus. Which actually updated gnome-session in the process.
+<code=bash>sudo add-apt-repository ppa:gnome3-team/gnome3</code>
+And to get something like DISPLAY:=0.1 in the command line, you need to bee in Unity2D. Geez.
+=== Cropping source videos ===
+Since Noemie has done some editing to the videos. She has brought letterboxed videos to display. And since we wanted the image to be fullscreen. I cropped the video using FFMpeg:
+<code=bash>ffmpeg -i input.dvd -vf "cropdetect=24:16:0" dummy.mpeg
+</code>
+detects where the cropping should happend. I could make calculations myself, but it was more fun to have it done by FFMpeg.
+<code=bash>ffmpeg -i input.dvd -vf "crop=720:432:0:72" -sameq -an cropped.dvd</code>
+Crops the video while keeping the quality the same, though removing the unecessary audio.
+==== Combat Naval ====
   * [[https://fr.wikipedia.org/wiki/Bataille_navale_%28jeu%29|Combat naval]]
@@ Line 9: / Line 63: @@
   * Décryptage (cryptologie) [[https://fr.wikipedia.org/wiki/Grille_de_Cardan| Grille de Cardan]]
   * [[https://fr.wikipedia.org/wiki/Grille_de_calcul| Grille de calcul]] (informatique)
+==== Grille Nogold ====
+  * ne bouge pas
+  * se transforme
+  * continue - discontinue
+  * vide -plein
+  * qqch circule
+  * changement de couleur
+  * pulsation colorée
+  * disparition - appariton
+  * pointillé - épaisseur ligne