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videolevels: make lower and upper histogram saturation fractions into properties

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This commit is contained in:
Joshua M. Doe 2021-07-08 14:34:59 -04:00
parent b705e93cb3
commit a0d62b4651
2 changed files with 30 additions and 5 deletions
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31
gst/videoadjust/gstvideolevels.c
View File

@ -61,6 +61,8 @@ enum
PROP_HIGHOUT,
PROP_AUTO,
PROP_INTERVAL,
PROP_LOWER_SATURATION,
PROP_UPPER_SATURATION,
PROP_LAST
};
@ -72,6 +74,8 @@ static GParamSpec *properties[PROP_LAST];
#define DEFAULT_PROP_HIGHOUT 255
#define DEFAULT_PROP_AUTO 0
#define DEFAULT_PROP_INTERVAL (GST_SECOND / 2)
#define DEFAULT_PROP_LOW_SAT 0.01
#define DEFAULT_PROP_HIGH_SAT 0.01
/* the capabilities of the inputs and outputs */
static GstStaticPadTemplate gst_videolevels_src_template =
@ -224,6 +228,14 @@ gst_videolevels_class_init (GstVideoLevelsClass * klass)
g_param_spec_uint64 ("interval", "Interval",
"Interval of time between adjustments (in nanoseconds)", 1,
G_MAXUINT64, DEFAULT_PROP_INTERVAL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_LOWER_SATURATION,
g_param_spec_double ("lower-saturation", "Lower saturation",
"The fraction of the histogram to saturate on the low end when auto is enabled",
0, 0.99, DEFAULT_PROP_LOW_SAT, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_UPPER_SATURATION,
g_param_spec_double ("upper-saturation", "Upper saturation",
"The fraction of the histogram to saturate on the upper end when auto is enabled",
0, 0.99, DEFAULT_PROP_HIGH_SAT, G_PARAM_READWRITE));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_videolevels_sink_template));
@ -305,6 +317,14 @@ gst_videolevels_set_property (GObject * object, guint prop_id,
videolevels->interval = g_value_get_uint64 (value);
videolevels->last_auto_timestamp = GST_CLOCK_TIME_NONE;
break;
case PROP_LOWER_SATURATION:
videolevels->lower_pix_sat = g_value_get_double (value);
gst_videolevels_calculate_lut (videolevels);
break;
case PROP_UPPER_SATURATION:
videolevels->upper_pix_sat = g_value_get_double (value);
gst_videolevels_calculate_lut (videolevels);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -346,6 +366,12 @@ gst_videolevels_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_INTERVAL:
g_value_set_uint64 (value, videolevels->interval);
break;
case PROP_LOWER_SATURATION:
g_value_set_double (value, videolevels->lower_pix_sat);
break;
case PROP_UPPER_SATURATION:
g_value_set_double (value, videolevels->upper_pix_sat);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -689,14 +715,13 @@ gst_videolevels_reset (GstVideoLevels * videolevels)
videolevels->upper_input = DEFAULT_PROP_HIGHIN;
videolevels->lower_output = DEFAULT_PROP_LOWOUT;
videolevels->upper_output = DEFAULT_PROP_HIGHOUT;
videolevels->lower_pix_sat = DEFAULT_PROP_LOW_SAT;
videolevels->upper_pix_sat = DEFAULT_PROP_HIGH_SAT;
videolevels->auto_adjust = DEFAULT_PROP_AUTO;
videolevels->interval = DEFAULT_PROP_INTERVAL;
videolevels->last_auto_timestamp = GST_CLOCK_TIME_NONE;
videolevels->lower_pix_sat = 0.01f;
videolevels->upper_pix_sat = 0.01f;
/* if GRAY8, this will be set in set_info */
videolevels->nbins = 4096;

4
gst/videoadjust/gstvideolevels.h
View File

@ -83,14 +83,14 @@ struct _GstVideoLevels
gint upper_input;
gint lower_output;
gint upper_output;
gfloat lower_pix_sat;
gfloat upper_pix_sat;
/* tables */
gpointer lookup_table;
GstVideoLevelsAuto auto_adjust;
guint64 interval;
gfloat lower_pix_sat;
gfloat upper_pix_sat;
gint nbins;
gint * histogram;