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Add gain control support to IDS uEye camera driver

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- Added 'gain' property to gstidsueyesrc element (0-100, 0=auto)
- Implemented hardware gain control using is_SetHardwareGain() API
- Added --gain/-g command-line argument to launch-ids.py
- Added SET_GAIN and GET_GAIN UDP control commands
- Updated STATUS command to include gain value
- Added get-gain and set-gain commands to camera_control.py test client
- Gain can be set at startup or adjusted dynamically during runtime
This commit is contained in:
yair
2025-11-16 03:54:29 +02:00
parent e09938a5a1
commit acbd8ec416
4 changed files with 107 additions and 4 deletions
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35
sys/idsueye/gstidsueyesrc.c
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@@ -73,7 +73,8 @@ enum
PROP_NUM_CAPTURE_BUFFERS,
PROP_TIMEOUT,
PROP_EXPOSURE,
PROP_FRAMERATE
PROP_FRAMERATE,
PROP_GAIN
};
#define DEFAULT_PROP_CAMERA_ID 0
@@ -83,6 +84,7 @@ enum
#define DEFAULT_PROP_TIMEOUT 1000
#define DEFAULT_PROP_EXPOSURE 0
#define DEFAULT_PROP_FRAMERATE 0
#define DEFAULT_PROP_GAIN 0
/* pad templates */
@@ -162,6 +164,11 @@ gst_idsueyesrc_class_init (GstIdsueyeSrcClass * klass)
"Framerate in frames per second", 0, G_MAXDOUBLE,
DEFAULT_PROP_FRAMERATE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_GAIN,
g_param_spec_int ("gain", "Master Gain",
"Master gain (0-100, 0 for auto)", 0, 100,
DEFAULT_PROP_GAIN,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
}
static void
@@ -196,6 +203,7 @@ gst_idsueyesrc_init (GstIdsueyeSrc * src)
src->timeout = DEFAULT_PROP_TIMEOUT;
src->exposure = DEFAULT_PROP_EXPOSURE;
src->framerate = DEFAULT_PROP_FRAMERATE;
src->gain = DEFAULT_PROP_GAIN;
src->stop_requested = FALSE;
src->caps = NULL;
@@ -240,6 +248,17 @@ gst_idsueyesrc_set_property (GObject * object, guint property_id,
gst_idsueyesrc_set_framerate_exposure (src);
}
break;
case PROP_GAIN:
src->gain = g_value_get_int (value);
if (src->is_started) {
INT ret = is_SetHardwareGain (src->hCam, src->gain, IS_IGNORE_PARAMETER,
IS_IGNORE_PARAMETER, IS_IGNORE_PARAMETER);
if (ret != IS_SUCCESS) {
GST_WARNING_OBJECT (src, "Failed to set gain to %d (error %d)",
src->gain, ret);
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@@ -277,6 +296,9 @@ gst_idsueyesrc_get_property (GObject * object, guint property_id,
case PROP_FRAMERATE:
g_value_set_double (value, src->framerate);
break;
case PROP_GAIN:
g_value_set_int (value, src->gain);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@@ -911,6 +933,17 @@ gst_idsueyesrc_set_framerate_exposure (GstIdsueyeSrc * src)
success = FALSE;
}
/* Set gain if specified (0 means use default/auto) */
if (src->gain > 0) {
ret = is_SetHardwareGain (src->hCam, src->gain, IS_IGNORE_PARAMETER,
IS_IGNORE_PARAMETER, IS_IGNORE_PARAMETER);
if (ret != IS_SUCCESS) {
GST_WARNING_OBJECT (src, "Failed to set gain to %d (error %d)",
src->gain, ret);
success = FALSE;
}
}
return success;
}