Webcam with cheese not working - shader fails to compile

apport information

apport information

apport information

I can confirm this bug. Seems it is also seen in debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690852

Ah sorry,

I mark mine report as dub, because this here has more usfull information.

BTW this is already reported upstream.

I link this ticket to the upstream report.

I have compiled cogl with --enable-debug=yes and attached the output. A shader for clutter-gst can't be compiled (seems like clutter-gst-video-sink.c) This is on a laptop with intel video (Mesa) on raring.
Work's fine on a desktop with proprietary ATI drivers.

Same problem with Intel graphics card. Console output:

(cheese:19481): Cogl-WARNING **: Failed to compile GLSL program:
src:
precision mediump float;
uniform sampler2D tex;void main () { vec4 color = texture2D (tex, vec2(cogl_tex_coord_in[0])); float y = 1.1640625 * (color.g - 0.0625); float u = color.b - 0.5; float v = color.a - 0.5; color.a = color.r; color.r = y + 1.59765625 * v; color.g = y - 0.390625 * u - 0.8125 * v; color.b = y + 2.015625 * u; gl_FragColor = color; gl_FragColor = gl_FragColor * cogl_color_in;}
error:
0:23(1): error: Illegal use of reserved word `precision'
0:23(1): error: syntax error, unexpected ERROR_TOK, expecting $end

(cheese:19481): Cogl-WARNING **: Failed to link GLSL program:
error: linking with uncompiled shader

xnox tested the new clutter-gst-2.0 which I'm about to upload and it fixes this problem for him. I think it's possible there are multiple bugs here, so if someone continues to experience similar issues please do file another bug.

This bug was fixed in the package clutter-gst-2.0 - 2.0.2-0ubuntu1

---------------
clutter-gst-2.0 (2.0.2-0ubuntu1) raring; urgency=low

  * New upstream release
    + Remove usage of ClutterStage/ClutterContainer deprecated APIs
    + Depend on Cogl 1.10 for shaders boilerplate (LP: #1101951)
    + Improve video-player player example on enter/leave event handling
    + Fix a bug a autocluttersink that would lead to playbin not considering it
      as a sink any more when removing the actual sink from the bin
  * Drop Debian patch; upstream now.
 -- Iain Lane <email address hidden> Thu, 07 Mar 2013 15:58:21 +0000