tag: Adds GST_TAG_CAPTURING_SHARPNESS

Adds new tag for tagging sharpness processing used
when capturing an image. Also maps it in the exif
tags.

Tests included.

API: GST_TAG_CAPTURING_SHARPNESS

https://bugzilla.gnome.org/show_bug.cgi?id=631773

docs/libs/gst-plugins-base-libs-sections.txt

@@ -1666,6 +1666,7 @@ GST_TAG_CAPTURING_GAIN_ADJUSTMENT
 GST_TAG_CAPTURING_WHITE_BALANCE
 GST_TAG_CAPTURING_CONTRAST
 GST_TAG_CAPTURING_SATURATION
+GST_TAG_CAPTURING_SHARPNESS
 GST_TAG_CAPTURING_FLASH_FIRED
 GST_TAG_CAPTURING_FLASH_MODE
 GST_TAG_IMAGE_HORIZONTAL_PPI

gst-libs/gst/tag/gstexiftag.c

@@ -238,6 +238,7 @@ EXIF_SERIALIZATION_DESERIALIZATION_FUNC (orientation);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (saturation);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (scene_capture_type);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (sensitivity_type);
+EXIF_SERIALIZATION_DESERIALIZATION_FUNC (sharpness);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (shutter_speed);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (speed);
 EXIF_SERIALIZATION_DESERIALIZATION_FUNC (white_balance);
@@ -293,6 +294,7 @@ EXIF_DESERIALIZATION_FUNC (add_to_pending_tags);
 #define EXIF_TAG_GAIN_CONTROL 0xA407
 #define EXIF_TAG_CONTRAST 0xA408
 #define EXIF_TAG_SATURATION 0xA409
+#define EXIF_TAG_SHARPNESS 0xA40A
 
 /* IFD pointer tags */
 #define EXIF_IFD_TAG 0x8769
@@ -390,6 +392,8 @@ static const GstExifTagMatch tag_map_exif[] = {
       serialize_contrast, deserialize_contrast},
   {GST_TAG_CAPTURING_SATURATION, EXIF_TAG_SATURATION, EXIF_TYPE_SHORT, 0,
       serialize_saturation, deserialize_saturation},
+  {GST_TAG_CAPTURING_SHARPNESS, EXIF_TAG_SHARPNESS, EXIF_TYPE_SHORT, 0,
+      serialize_sharpness, deserialize_sharpness},
   {NULL, 0, 0, 0, NULL, NULL}
 };
 
@@ -1761,6 +1765,8 @@ EXIF_SERIALIZATION_DESERIALIZATION_MAP_STRING_TO_INT_FUNC (saturation,
     capturing_saturation);
 EXIF_SERIALIZATION_DESERIALIZATION_MAP_STRING_TO_INT_FUNC (scene_capture_type,
     capturing_scene_capture_type);
+EXIF_SERIALIZATION_DESERIALIZATION_MAP_STRING_TO_INT_FUNC (sharpness,
+    capturing_sharpness);
 EXIF_SERIALIZATION_DESERIALIZATION_MAP_STRING_TO_INT_FUNC (white_balance,
     capturing_white_balance);
 

gst-libs/gst/tag/gsttageditingprivate.c

@@ -277,8 +277,9 @@ __exif_tag_capturing_white_balance_from_exif_value (gint value)
   }
 }
 
-gint
-__exif_tag_capturing_contrast_to_exif_value (const gchar * str)
+static gint
+__exif_tag_capturing_contrast_sharpness_to_exif_value (const gchar * str,
+    const gchar * tag_name)
 {
   if (str == NULL)
     goto end;
@@ -291,12 +292,13 @@ __exif_tag_capturing_contrast_to_exif_value (const gchar * str)
     return 2;
 
 end:
-  GST_WARNING ("Invalid contrast type: %s", str);
+  GST_WARNING ("Invalid %s type: %s", tag_name, str);
   return -1;
 }
 
-const gchar *
-__exif_tag_capturing_contrast_from_exif_value (gint value)
+static const gchar *
+__exif_tag_capturing_contrast_sharpness_from_exif_value (gint value,
+    const gchar * tag_name)
 {
   switch (value) {
     case 0:
@@ -306,11 +308,25 @@ __exif_tag_capturing_contrast_from_exif_value (gint value)
     case 2:
       return "hard";
     default:
-      GST_WARNING ("Invalid contrast type: %d", value);
+      GST_WARNING ("Invalid %s type: %d", tag_name, value);
       return NULL;
   }
 }
 
+gint
+__exif_tag_capturing_contrast_to_exif_value (const gchar * str)
+{
+  return __exif_tag_capturing_contrast_sharpness_to_exif_value (str,
+      "contrast");
+}
+
+const gchar *
+__exif_tag_capturing_contrast_from_exif_value (gint value)
+{
+  return __exif_tag_capturing_contrast_sharpness_from_exif_value (value,
+      "contrast");
+}
+
 gint
 __exif_tag_capturing_saturation_to_exif_value (const gchar * str)
 {
@@ -344,3 +360,17 @@ __exif_tag_capturing_saturation_from_exif_value (gint value)
       return NULL;
   }
 }
+
+gint
+__exif_tag_capturing_sharpness_to_exif_value (const gchar * str)
+{
+  return __exif_tag_capturing_contrast_sharpness_to_exif_value (str,
+      "sharpness");
+}
+
+const gchar *
+__exif_tag_capturing_sharpness_from_exif_value (gint value)
+{
+  return __exif_tag_capturing_contrast_sharpness_from_exif_value (value,
+      "sharpness");
+}

gst-libs/gst/tag/gsttageditingprivate.h

@@ -59,6 +59,9 @@ const gchar * __exif_tag_capturing_contrast_from_exif_value (gint value);
 gint __exif_tag_capturing_saturation_to_exif_value (const gchar * str);
 const gchar * __exif_tag_capturing_saturation_from_exif_value (gint value);
 
+gint __exif_tag_capturing_sharpness_to_exif_value (const gchar * str);
+const gchar * __exif_tag_capturing_sharpness_from_exif_value (gint value);
+
 G_END_DECLS
 
 #endif /* __GST_TAG_EDIT_PRIVATE_H__ */

gst-libs/gst/tag/tag.h

@@ -280,6 +280,20 @@ G_BEGIN_DECLS
  */
 #define GST_TAG_CAPTURING_SATURATION          "capturing-saturation"
 
+/**
+ * GST_TAG_CAPTURING_SHARPNESS:
+ *
+ * Direction of sharpness processing applied when capturing an image. (string)
+ *
+ * The allowed values are:
+ *  "normal"
+ *  "soft"
+ *  "hard"
+ *
+ * Since: 0.10.31
+ */
+#define GST_TAG_CAPTURING_SHARPNESS          "capturing-sharpness"
+
 /**
  * GST_TAG_CAPTURING_FLASH_FIRED:
  *

gst-libs/gst/tag/tags.c

@@ -155,6 +155,11 @@ gst_tag_register_tags_internal (gpointer unused)
       _("The direction of saturation processing applied when "
           "capturing an image"), NULL);
 
+  gst_tag_register (GST_TAG_CAPTURING_SHARPNESS, GST_TAG_FLAG_META,
+      G_TYPE_STRING, _("capturing sharpness"),
+      _("The direction of sharpness processing applied "
+          "when capturing an image"), NULL);
+
   gst_tag_register (GST_TAG_CAPTURING_FLASH_FIRED, GST_TAG_FLAG_META,
       G_TYPE_BOOLEAN, _("capturing flash fired"),
       _("If the flash fired while capturing and image"), NULL);

tests/check/libs/tag.c

@@ -1384,6 +1384,16 @@ GST_START_TEST (test_exif_tags_serialization_deserialization)
   g_value_set_static_string (&value, "high-saturation");
   do_simple_exif_tag_serialization_deserialization
       (GST_TAG_CAPTURING_SATURATION, &value);
+
+  g_value_set_static_string (&value, "normal");
+  do_simple_exif_tag_serialization_deserialization (GST_TAG_CAPTURING_SHARPNESS,
+      &value);
+  g_value_set_static_string (&value, "hard");
+  do_simple_exif_tag_serialization_deserialization (GST_TAG_CAPTURING_SHARPNESS,
+      &value);
+  g_value_set_static_string (&value, "soft");
+  do_simple_exif_tag_serialization_deserialization (GST_TAG_CAPTURING_SHARPNESS,
+      &value);
   g_value_unset (&value);
 
   g_value_init (&value, G_TYPE_DOUBLE);