ahc2src: implement flicker-mode

Signed-off-by: Justin Kim <justin.kim@collabora.com>

sys/androidmedia/gstahc2src.c

@@ -630,6 +630,83 @@ gst_ahc2_src_set_flash_mode (GstPhotography * photo,
   return TRUE;
 }
 
+static gboolean
+gst_ahc2_src_get_flicker_mode (GstPhotography * photo,
+    GstPhotographyFlickerReductionMode * flicker_mode)
+{
+  GstAHC2Src *self = GST_AHC2_SRC (photo);
+  GstAHC2SrcPrivate *priv = GST_AHC2_SRC_GET_PRIVATE (self);
+  ACameraMetadata_const_entry entry;
+
+  g_return_val_if_fail (priv->capture_request != NULL, FALSE);
+
+  if (ACaptureRequest_getConstEntry (priv->capture_request,
+      ACAMERA_CONTROL_AE_ANTIBANDING_MODE, &entry) != ACAMERA_OK) {
+    GST_ERROR_OBJECT (self, "Failed to get ANTIBANDING MODE");
+    return FALSE;
+  }
+
+  switch (entry.data.u8[0]) {
+    case ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF:
+      *flicker_mode = GST_PHOTOGRAPHY_FLICKER_REDUCTION_OFF; 
+      break;
+    case ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ:
+      *flicker_mode = GST_PHOTOGRAPHY_FLICKER_REDUCTION_50HZ;
+      break;
+    case ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ:
+      *flicker_mode = GST_PHOTOGRAPHY_FLICKER_REDUCTION_60HZ;
+      break;
+    case ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO:
+      *flicker_mode = GST_PHOTOGRAPHY_FLICKER_REDUCTION_AUTO;
+      break;
+    default:
+      g_assert_not_reached ();
+      break;
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_ahc2_src_set_flicker_mode (GstPhotography * photo,
+    GstPhotographyFlickerReductionMode flicker_mode)
+{
+  GstAHC2Src *self = GST_AHC2_SRC (photo);
+  GstAHC2SrcPrivate *priv = GST_AHC2_SRC_GET_PRIVATE (self);
+  guint8 mode;
+
+  g_return_val_if_fail (priv->capture_request != NULL, FALSE);
+
+  switch (flicker_mode) {
+    case GST_PHOTOGRAPHY_FLICKER_REDUCTION_OFF:
+      mode = ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF;
+      break;
+    case GST_PHOTOGRAPHY_FLICKER_REDUCTION_50HZ:
+      mode = ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ;
+      break;
+    case GST_PHOTOGRAPHY_FLICKER_REDUCTION_60HZ:
+      mode = ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ;
+      break;
+    case GST_PHOTOGRAPHY_FLICKER_REDUCTION_AUTO:
+      mode = ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO;
+      break;
+    default:
+      GST_WARNING_OBJECT (self, "Unsupported flicker-mode (%d)", flicker_mode);
+      break;
+  }
+
+  ACameraCaptureSession_stopRepeating (priv->camera_capture_session);
+
+  ACaptureRequest_setEntry_u8 (priv->capture_request,
+      ACAMERA_CONTROL_AE_ANTIBANDING_MODE, 1, &mode);
+
+  ACameraCaptureSession_setRepeatingRequest (priv->camera_capture_session,
+    NULL, 1, &priv->capture_request, NULL);
+ 
+  return TRUE;
+}
+ 
+ 
 static gboolean
 gst_ahc2_src_get_scene_mode (GstPhotography * photo,
     GstPhotographySceneMode * scene_mode)
@@ -1414,6 +1491,11 @@ gst_ahc2_src_set_property (GObject * object,
       gst_ahc2_src_set_flash_mode (GST_PHOTOGRAPHY (self), flash);
       break;
     }
+    case PROP_FLICKER_MODE:{
+      GstPhotographyFlickerReductionMode flicker = g_value_get_enum (value);
+      gst_ahc2_src_set_flicker_mode (GST_PHOTOGRAPHY (self), flicker);
+      break;
+    }
     case PROP_FOCUS_MODE: {
       GstPhotographyFocusMode focus = g_value_get_enum (value);
       gst_ahc2_src_set_focus_mode (GST_PHOTOGRAPHY (self), focus);
@@ -1481,6 +1563,12 @@ gst_ahc2_src_get_property (GObject * object,
         g_value_set_enum (value, flash);
       break;
     }
+    case PROP_FLICKER_MODE:{
+      GstPhotographyFlickerReductionMode flicker;
+      if (gst_ahc2_src_get_flicker_mode (GST_PHOTOGRAPHY (self), &flicker))
+        g_value_set_enum (value, flicker);
+      break;
+    }
     case PROP_FOCUS_MODE: {
       GstPhotographyFocusMode focus;
       if (gst_ahc2_src_get_focus_mode (GST_PHOTOGRAPHY (self), &focus))
@@ -1962,6 +2050,9 @@ gst_ahc2_src_photography_init (gpointer g_iface, gpointer iface_data)
   iface->get_flash_mode = gst_ahc2_src_get_flash_mode;
   iface->set_flash_mode = gst_ahc2_src_set_flash_mode;
 
+  iface->get_flicker_mode = gst_ahc2_src_get_flicker_mode;
+  iface->set_flicker_mode = gst_ahc2_src_set_flicker_mode;
+
   iface->get_scene_mode = gst_ahc2_src_get_scene_mode;
   iface->set_scene_mode = gst_ahc2_src_set_scene_mode;