Add GParamSpecs for GstVaapiID.

diff --git a/gst-libs/gst/vaapi/Makefile.am b/gst-libs/gst/vaapi/Makefile.am
index 0b3cb93743e315f478dfb8a394fd34ac00f1b3ad..4b8280d7005ea064cf860c6eb43fdeeba5d4fd3c 100644 (file)
--- a/gst-libs/gst/vaapi/Makefile.am
+++ b/gst-libs/gst/vaapi/Makefile.am
@@ -13,6 +13,7 @@ libgstvaapi_source_c =                                \
        gstvaapiimagepool.c                     \
        gstvaapimarshal.c                       \
        gstvaapiobject.c                        \
+       gstvaapiparamspecs.c                    \
        gstvaapisubpicture.c                    \
        gstvaapisurface.c                       \
        gstvaapisurfacepool.c                   \
@@ -30,6 +31,7 @@ libgstvaapi_source_h =                                \
        gstvaapiimageformat.h                   \
        gstvaapiimagepool.h                     \
        gstvaapiobject.h                        \
+       gstvaapiparamspecs.h                    \
        gstvaapisubpicture.h                    \
        gstvaapisurface.h                       \
        gstvaapisurfacepool.h                   \

diff --git a/gst-libs/gst/vaapi/gstvaapiparamspecs.c b/gst-libs/gst/vaapi/gstvaapiparamspecs.c
new file mode 100644 (file)
index 0000000..f297a9c
--- /dev/null
+++ b/gst-libs/gst/vaapi/gstvaapiparamspecs.c
@@ -0,0 +1,134 @@
+/*
+ *  gstvaapiparamspecs.c - GParamSpecs for some of our types
+ *
+ *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include "config.h"
+#include <va/va.h>
+#include "gstvaapiparamspecs.h"
+
+/* --- GstVaapiParamSpecID --- */
+
+static void
+gst_vaapi_param_id_init(GParamSpec *pspec)
+{
+    GST_VAAPI_PARAM_SPEC_ID(pspec)->default_value = VA_INVALID_ID;
+}
+
+static void
+gst_vaapi_param_id_set_default(GParamSpec *pspec, GValue *value)
+{
+    gst_vaapi_value_set_id(value, GST_VAAPI_PARAM_SPEC_ID(pspec)->default_value);
+}
+
+static gboolean
+gst_vaapi_param_id_validate(GParamSpec *pspec, GValue *value)
+{
+    /* Return FALSE if everything is OK, otherwise TRUE */
+    return FALSE;
+}
+
+static gint
+gst_vaapi_param_id_compare(
+    GParamSpec   *pspec,
+    const GValue *value1,
+    const GValue *value2
+)
+{
+    const GstVaapiID v1 = gst_vaapi_value_get_id(value1);
+    const GstVaapiID v2 = gst_vaapi_value_get_id(value2);
+
+    return (v1 < v2 ? -1 : (v1 > v2 ? 1 : 0));
+}
+
+GType
+gst_vaapi_param_spec_id_get_type(void)
+{
+    static GType type;
+
+    if (G_UNLIKELY(type == 0)) {
+        static GParamSpecTypeInfo pspec_info = {
+            sizeof(GstVaapiParamSpecID),        /* instance_size     */
+            0,                                  /* n_preallocs       */
+            gst_vaapi_param_id_init,            /* instance_init     */
+            G_TYPE_INVALID,                     /* value_type        */
+            NULL,                               /* finalize          */
+            gst_vaapi_param_id_set_default,     /* value_set_default */
+            gst_vaapi_param_id_validate,        /* value_validate    */
+            gst_vaapi_param_id_compare,         /* values_cmp        */
+        };
+        pspec_info.value_type = GST_VAAPI_TYPE_ID;
+        type = g_param_type_register_static("GstVaapiParamSpecID", &pspec_info);
+    }
+    return type;
+}
+
+/**
+ * gst_vaapi_param_spec_id:
+ * @name: canonical name of the property specified
+ * @nick: nick name for the property specified
+ * @blurb: description of the property specified
+ * @default_value: default value
+ * @flags: flags for the property specified
+ *
+ * This function creates an ID GParamSpec for use by #GstVaapiObject
+ * objects. This function is typically used in connection with
+ * g_object_class_install_property() in a GObjects's instance_init
+ * function.
+ *
+ * Return value: a newly created parameter specification
+ */
+GParamSpec *
+gst_vaapi_param_spec_id(
+    const gchar *name,
+    const gchar *nick,
+    const gchar *blurb,
+    GstVaapiID   default_value,
+    GParamFlags  flags
+)
+{
+    GstVaapiParamSpecID *ispec;
+    GParamSpec *pspec;
+    GValue value = { 0, };
+
+    ispec = g_param_spec_internal(
+        GST_VAAPI_TYPE_PARAM_ID,
+        name,
+        nick,
+        blurb,
+        flags
+    );
+    if (!ispec)
+        return NULL;
+
+    ispec->default_value = default_value;
+    pspec = G_PARAM_SPEC(ispec);
+
+    /* Validate default value */
+    g_value_init(&value, GST_VAAPI_TYPE_ID);
+    gst_vaapi_value_set_id(&value, default_value);
+    if (gst_vaapi_param_id_validate(pspec, &value)) {
+        g_param_spec_ref(pspec);
+        g_param_spec_sink(pspec);
+        g_param_spec_unref(pspec);
+        pspec = NULL;
+    }
+    g_value_unset(&value);
+
+    return pspec;
+}

diff --git a/gst-libs/gst/vaapi/gstvaapiparamspecs.h b/gst-libs/gst/vaapi/gstvaapiparamspecs.h
new file mode 100644 (file)
index 0000000..96cee24
--- /dev/null
+++ b/gst-libs/gst/vaapi/gstvaapiparamspecs.h
@@ -0,0 +1,70 @@
+/*
+ *  gstvaapiparamspecs.h - GParamSpecs for some of our types
+ *
+ *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#ifndef GST_VAAPI_PARAM_SPECS_H
+#define GST_VAAPI_PARAM_SPECS_H
+
+#include <gst/vaapi/gstvaapitypes.h>
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GstVaapiParamSpecID:
+ * @parent_instance: super class
+ * @default_value: default value
+ *
+ * A GParamSpec derived structure that contains the meta data for
+ * #GstVaapiID properties.
+ */
+typedef struct _GstVaapiParamSpecID GstVaapiParamSpecID;
+struct _GstVaapiParamSpecID {
+    GParamSpec  parent_instance;
+
+    GstVaapiID  default_value;
+};
+
+#define GST_VAAPI_TYPE_PARAM_ID \
+    (gst_vaapi_param_spec_id_get_type())
+
+#define GST_VAAPI_IS_PARAM_SPEC_ID(pspec)                       \
+    (G_TYPE_CHECK_INSTANCE_TYPE((pspec),                        \
+                                GST_VAAPI_TYPE_PARAM_ID))
+
+#define GST_VAAPI_PARAM_SPEC_ID(pspec)                          \
+    (G_TYPE_CHECK_INSTANCE_CAST((pspec),                        \
+                                GST_VAAPI_TYPE_PARAM_ID,        \
+                                GstVaapiParamSpecID))
+
+GType
+gst_vaapi_param_spec_id_get_type(void);
+
+GParamSpec *
+gst_vaapi_param_spec_id(
+    const gchar *name,
+    const gchar *nick,
+    const gchar *blurb,
+    GstVaapiID   default_value,
+    GParamFlags  flags
+);
+
+G_END_DECLS
+
+#endif /* GST_VAAPI_PARAM_SPECS_H */