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Make YUV/RGB conversion more accurate

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This commit is contained in:
Florian Märkl 2019-09-22 21:21:41 +02:00
parent 2b6a41957a
commit c40b5a95d1
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GPG key ID: 125BC8A5A6A1E857
1 changed files with 5 additions and 5 deletions
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10
gui/src/avopenglwidget.cpp
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@ -54,13 +54,13 @@ out vec4 out_color;
void main()
{
vec3 yuv = vec3(
texture(tex_y, uv_var).r,
texture(tex_u, uv_var).r - 0.5,
texture(tex_v, uv_var).r - 0.5);
(texture(tex_y, uv_var).r - (16.0 / 255.0)) / ((235.0 - 16.0) / 255.0),
(texture(tex_u, uv_var).r - (16.0 / 255.0)) / ((240.0 - 16.0) / 255.0) - 0.5,
(texture(tex_v, uv_var).r - (16.0 / 255.0)) / ((240.0 - 16.0) / 255.0) - 0.5);
vec3 rgb = mat3(
1.0, 1.0, 1.0,
0.0, -0.39393, 2.02839,
1.14025, -0.58081, 0.0) * yuv;
0.0, -0.21482, 2.12798,
1.28033, -0.38059, 0.0) * yuv;
out_color = vec4(rgb, 1.0);
}
)glsl";