Package: xscreensaver
Version: 4.23-4
Severity: normal
Tags: patch
Hi!
I have a webcam working with the spca5xx driver. To grab an image from my
webcam, xscreensaver-getimage-video calls streamer.
By the way it is called in xscreensaver-getimage-video, streamer only grabs
the very first frame sent by the webcam. But as there is a hardware automatic
brightness adjustment made by the webcam, the first frame sent is black...
and it takes 2 seconds before having a correct image!
I made a quick hack in xscreensaver-getimage-video that enables taking
the picture 2 seconds after the webcam has been enabled.
I don't know if this issue is really specific to my hardware, but maybe
xscreensaver should have an option to ask after how many seconds the picture
should be grabbed. Or maybe can/should this be handled by the spca5xx driver?
Ask me if if you need more information, screenshots, etc...
Cheers,
--
Steph
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (990, 'testing'), (970, 'stable'), (950, 'unstable'), (930,
'experimental'), (890, 'breezy'), (870, 'dapper'), (500, 'dapper-updates'),
(500, 'dapper-security'), (500, 'dapper-backports'), (500, 'breezy-updates'),
(500, 'breezy-security'), (500, 'breezy-backports')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages xscreensaver depends on:
ii libatk1.0-0 1.10.3-1 The ATK accessibility toolkit
ii libc6 2.3.6-3 GNU C Library: Shared libraries an
ii libcairo2 1.0.2-3 The Cairo 2D vector graphics libra
ii libfontconfig1 2.3.2-1.1 generic font configuration library
ii libglade2-0 1:2.5.1-2 library to load .glade files at ru
ii libglib2.0-0 2.10.1-1 The GLib library of C routines
ii libgtk2.0-0 2.8.13-1 The GTK+ graphical user interface
ii libice6 6.9.0.dfsg.1-4 Inter-Client Exchange library
ii libjpeg62 6b-12 The Independent JPEG Group's JPEG
ii libpam0g 0.79-3.1 Pluggable Authentication Modules l
ii libpango1.0-0 1.12.0-0ubuntu1 Layout and rendering of internatio
ii libsm6 6.9.0.dfsg.1-4 X Window System Session Management
ii libx11-6 6.9.0.dfsg.1-4 X Window System protocol client li
ii libxcursor1 1.1.3-1 X cursor management library
ii libxext6 6.9.0.dfsg.1-4 X Window System miscellaneous exte
ii libxi6 6.9.0.dfsg.1-4 X Window System Input extension li
ii libxinerama1 6.9.0.dfsg.1-4 X Window System multi-head display
ii libxml2 2.6.23.dfsg.2-2 GNOME XML library
ii libxmu6 6.9.0.dfsg.1-4 X Window System miscellaneous util
ii libxpm4 6.9.0.dfsg.1-4 X pixmap library
ii libxrandr2 6.9.0.dfsg.1-4 X Window System Resize, Rotate and
ii libxrender1 1:0.9.0.2-1 X Rendering Extension client libra
ii libxt6 6.9.0.dfsg.1-4 X Toolkit Intrinsics
ii libxxf86misc1 6.9.0.dfsg.1-4 X miscellaneous extensions library
ii libxxf86vm1 6.9.0.dfsg.1-4 X Video Mode selection library
ii zlib1g 1:1.2.3-9 compression library - runtime
Versions of packages xscreensaver recommends:
pn libjpeg-progs <none> (no description available)
ii perl [perl5] 5.8.8-2 Larry Wall's Practical Extraction
ii wamerican [wordlist] 6-2 American English dictionary words
ii xloadimage 4.1-16 Graphics file viewer under X11
-- no debconf information
--- xscreensaver-4.23/driver/xscreensaver-getimage-video 2005-02-23
02:01:41.000000000 -0800
+++ /usr/bin/xscreensaver-getimage-video 2006-03-19 22:54:06.000000000
-0800
@@ -34,6 +34,8 @@
my $verbose = 0;
my $tmpdir = $ENV{TMPDIR} || "/tmp";
+my $tmpfile1 = sprintf ("%s/xssgv01.ppm", $tmpdir, rand(0xFFFFFFFF));
+my $tmpfile3 = sprintf ("%s/xssgv03.ppm", $tmpdir, rand(0xFFFFFFFF));
my $tmpfile = sprintf ("%s/xssgv.%08x.ppm", $tmpdir, rand(0xFFFFFFFF));
@@ -45,6 +47,7 @@
# If you add other programs to this list, please let me know!
#
my @programs = (
+ "streamer -a -t3 -r1 -o $tmpfile1; mv $tmpfile3 $tmpfile", # XawTV
after 2 sec
"bttvgrab -d q -Q -l 1 -o ppm -f $tmpfile", # BTTV
"qcam > $tmpfile", # Connectix Qcam
