[FFmpeg-cvslog] lavd/opengl_enc_shaders: fix gray* shader

[Lukasz Marek]

ffmpeg | branch: master | Lukasz Marek <lukasz.m.luki at gmail.com> | Sun Feb 16 19:56:25 2014 +0100| [d3cf9b24cf80eb4d317964e887c591809a149cef] | committer: Lukasz Marek

lavd/opengl_enc_shaders: fix gray* shader

Signed-off-by: Lukasz Marek <lukasz.m.luki at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d3cf9b24cf80eb4d317964e887c591809a149cef
---

 libavdevice/opengl_enc_shaders.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavdevice/opengl_enc_shaders.h b/libavdevice/opengl_enc_shaders.h
index 6378dfb..ed8b3d3 100644
--- a/libavdevice/opengl_enc_shaders.h
+++ b/libavdevice/opengl_enc_shaders.h
@@ -181,7 +181,7 @@ static const char * const FF_OPENGL_FRAGMENT_SHADER_GRAY =
     "varying vec2 texture_coordinate;"
     "void main()"
     "{"
-        "float c = texture2D(u_texture0, texture_coordinate);"
+        "float c = texture2D(u_texture0, texture_coordinate).r;"
         "gl_FragColor = vec4(c, c, c, 1.0);"
     "}";