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gltransformation: support negative scales

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A scale of -1.0 means to flip the video.
This commit is contained in:
Matthew Waters 2016-01-14 19:03:04 +11:00
parent 12f013c8d7
commit f721499371
1 changed files with 4 additions and 2 deletions
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6
ext/gl/gstgltransformation.c
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@ -199,12 +199,14 @@ gst_gl_transformation_class_init (GstGLTransformationClass * klass)
g_object_class_install_property (gobject_class, PROP_SCALE_X,
g_param_spec_float ("scale-x", "X Scale",
"Scale multiplier for the X-Axis.",
0.0, G_MAXFLOAT, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-G_MAXFLOAT, G_MAXFLOAT, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SCALE_Y,
g_param_spec_float ("scale-y", "Y Scale",
"Scale multiplier for the Y-Axis.",
0.0, G_MAXFLOAT, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-G_MAXFLOAT, G_MAXFLOAT, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Pivot */
g_object_class_install_property (gobject_class, PROP_PIVOT_X,