I recently emerged camorama 0.17 and usb-pwc-re 10.0.7 on my Pentium 4 laptop, got camera capture working, but then noticed I can't enable the "laplace" or "mirror image" effects without the application crashing. Recompiling with +debug, and running with -D, does not seem to produce any useful output (nothing other than the initial startup output appears on the terminal prior to the crash). A week or two ago, I went through the same get-the-webcam-working dance on my Athlon 64 desktop, and I'm pretty sure I didn't get this problem there. Reproducible: Always Steps to Reproduce: 1. Start camorama 2. Enable "laplace" or "mirror image" Actual Results: Application crashes, with the GNOME crash dialogue ("Application X has quit unexpectedly") Expected Results: Program keeps running, with specified effect enabled Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5-20050130, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r11 i686) ================================================================= System uname: 2.6.11-gentoo-r11 i686 Intel(R) Pentium(R) 4 CPU 2.80GHz Gentoo Base System version 1.6.12 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Jun 11 2005, 15:20:55)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.5, 1.7.9-r1, 1.9.5, 1.6.3, 1.4_p6, 1.8.5-r3 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium4 -O3 -funroll-loops -fomit-frame-pointer -fprefetch-loop-arrays -pipe -ftracer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium4 -O3 -funroll-loops -fomit-frame-pointer -fprefetch-loop-arrays -pipe -ftracer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://gentoo.ccccom.com/ http://www.die.unipd.it/pub/Linux/distributions/gentoo-sources/ http://ftp-mirror.internap.com/pub/gentoo/" LC_ALL="en_GB.utf8" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X aalib acpi adns alsa apache2 avi bitmap-fonts cdr crypt cscope cups curl dga divx4linux dvd dvdread eds emboss encode flac foomaticdb gdbm gif gnome gpm gstreamer gtk gtk2 hal imagemagick imap imlib java joystick jpeg libg++ libwww mad matroska mikmod mmx mng mozilla moznocompose moznoirc mozsvg mp3 mpeg ncurses nls nptl nptlonly offensive ogg oggvorbis openal opengl pam pcmcia pdflib png quicktime readline samba sdl slang speex spell sse sse2 ssl tcltk tcpd tetex theora tiff truetype truetype-fonts type1-fonts unicode vorbis win32codecs wmf xine xml2 xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LDFLAGS, LINGUAS
to get laplace working you have to change laplace function in filter.c like this void laplace (unsigned char *image, int z, int x, int y) { int i; int neighbours; int total0, total1, total2; unsigned char *image2, *image3; image2 = (unsigned char *) malloc (sizeof (unsigned char) * x * y * z); memcpy (image2, image, x * y * z); image3 = image2; image2+=(x + 1) * 3; // this was missing in the original file for (i = 1; i < x * (y - 1); i++) { total0 = 0; total1 = 0; total2 = 0; neighbours = 0; image2 -= (x + 1) * 3; total0 = total0 + (int)image2[0]; total1 = total1 + (int)image2[1]; total2 = total2 + (int)image2[2]; total0 = total0 + (int)image2[3]; total1 = total1 + (int)image2[4]; total2 = total2 + (int)image2[5]; total0 = total0 + (int)image2[6]; total1 = total1 + (int)image2[7]; total2 = total2 + (int)image2[8]; image2 += (x + 1) * 3; image2 += (x - 1) * 3; total0 = total0 + image2[0]; total1 = total1 + image2[1]; total2 = total2 + image2[2]; total0 = total0 + image2[3]; total1 = total1 + image2[4]; total2 = total2 + image2[5]; total0 = total0 + image2[6]; total1 = total1 + image2[7]; total2 = total2 + image2[8]; image2 -= (x - 1) * 3; image2 += 3; total0 = total0 + image2[0]; total1 = total1 + image2[1]; total2 = total2 + image2[2]; image2 -= 3; image2 -= 3; total0 = total0 + image2[0]; total1 = total1 + image2[1]; total2 = total2 + image2[2]; image2 += 3; if (image[0] * 8 < total0) { image[0] = 0; } else { image[0] = (image[0] * 8) - total0; } if (image[1] * 8 < total1) { image[1] = 0; } else { image[1] = (image[1] * 8) - total1; } if (image[2] * 8 < total2) { image[2] = 0; } else { image[2] = (image[2] * 8) - total2; } image += 3; image2 += 3; } free (image3); }
Does release camorama-0.18 solves that issue?
needinfo
(In reply to comment #2) > Does release camorama-0.18 solves that issue? > Not sure - the machine in question (P4 laptop) isn't running Gentoo any more. Still working without problems on the other machine mentioned (Athlon 64 desktop), though.
