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Bug 757938 - glcolorconvert fails on OSX
glcolorconvert fails on OSX
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
git master
Other Mac OS
: Normal normal
: 1.7.1
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Reported: 2015-11-11 11:01 UTC by Heinrich Fink
Modified: 2015-11-11 12:56 UTC
See Also:
GNOME target: ---
GNOME version: ---

Log of crash (4.49 KB, application/x-xz)
2015-11-11 11:01 UTC, Heinrich Fink

Description Heinrich Fink 2015-11-11 11:01:10 UTC
Created attachment 315248 [details]
Log of crash

Using gst-play-1.0 on OSX, I get the following error:

0:00:00.205942000 51423 0x7fbd860585e0 ERROR              glslstage gstglslstage.c:467:_compile_shader:<glslstage1> fragment shader compilation failed:ERROR: 0:45: Use of undeclared identifier 'gl_FragColor'

This can be reproduced by playing the file using gst-play-1.0 available at

Attached is a debug log of gl*:6 playing that file.
Comment 1 Matthew Waters (ystreet00) 2015-11-11 12:46:21 UTC

Note I couldn't actually reproduce this on my Intel hardware and switching to my nvidia card is a hassle so this is actually untested but it should work ;)

commit aada44cc091f8442821523499fc74df555ac361d
Author: Matthew Waters <>
Date:   Wed Nov 11 23:39:35 2015 +1100

    glcolorconvert: mangle gl_FragColor for GL3
    Some drivers don't provide the compatibility definition and we need to provide
    our own 'out vec4' variable to put the results of the fragment shader into.
Comment 2 Heinrich Fink 2015-11-11 12:53:35 UTC
Thanks, that fixes it for me :)