From 8593fb619c970143ddcacc798f4b5a5384c569db Mon Sep 17 00:00:00 2001
From: Holger Kaelberer <holger.k@elberer.de>
Date: Tue, 7 Feb 2012 15:54:15 +0100
Subject: [PATCH] surfaceproxy: add TFF property.

Add TFF (top-field-first) property to GstVaapiSurfaceProxy.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
---
 docs/reference/libs/libs-sections.txt     |  2 ++
 gst-libs/gst/vaapi/gstvaapisurfaceproxy.c | 51 ++++++++++++++++++++++++++++++-
 gst-libs/gst/vaapi/gstvaapisurfaceproxy.h | 15 +++++++++
 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/docs/reference/libs/libs-sections.txt b/docs/reference/libs/libs-sections.txt
index b4fd513..29fa8c0 100644
--- a/docs/reference/libs/libs-sections.txt
+++ b/docs/reference/libs/libs-sections.txt
@@ -499,6 +499,8 @@ gst_vaapi_surface_proxy_get_surface_id
 gst_vaapi_surface_proxy_set_surface
 gst_vaapi_surface_proxy_get_timestamp
 gst_vaapi_surface_proxy_set_timestamp
+gst_vaapi_surface_proxy_get_tff
+gst_vaapi_surface_proxy_set_tff
 <SUBSECTION Standard>
 GST_VAAPI_SURFACE_PROXY
 GST_VAAPI_IS_SURFACE_PROXY
diff --git a/gst-libs/gst/vaapi/gstvaapisurfaceproxy.c b/gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
index 404583c..9b01ac3 100644
--- a/gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
+++ b/gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
@@ -43,6 +43,7 @@ struct _GstVaapiSurfaceProxyPrivate {
     GstVaapiContext    *context;
     GstVaapiSurface    *surface;
     GstClockTime        timestamp;
+    gboolean            tff;
 };
 
 enum {
@@ -50,7 +51,8 @@ enum {
 
     PROP_CONTEXT,
     PROP_SURFACE,
-    PROP_TIMESTAMP
+    PROP_TIMESTAMP,
+    PROP_TFF
 };
 
 static void
@@ -84,6 +86,9 @@ gst_vaapi_surface_proxy_set_property(
     case PROP_TIMESTAMP:
         gst_vaapi_surface_proxy_set_timestamp(proxy, g_value_get_uint64(value));
         break;
+    case PROP_TFF:
+        gst_vaapi_surface_proxy_set_tff(proxy, g_value_get_boolean(value));
+        break;
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
         break;
@@ -110,6 +115,9 @@ gst_vaapi_surface_proxy_get_property(
     case PROP_TIMESTAMP:
         g_value_set_uint64(value, gst_vaapi_surface_proxy_get_timestamp(proxy));
         break;
+    case PROP_TFF:
+        g_value_set_boolean(value, gst_vaapi_surface_proxy_get_tff(proxy));
+        break;
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
         break;
@@ -151,6 +159,15 @@ gst_vaapi_surface_proxy_class_init(GstVaapiSurfaceProxyClass *klass)
                              "The presentation time of the surface",
                              0, G_MAXUINT64, GST_CLOCK_TIME_NONE,
                              G_PARAM_READWRITE));
+
+    g_object_class_install_property
+        (object_class,
+         PROP_TFF,
+         g_param_spec_boolean("tff",
+                              "Top-Field-First",
+                              "Flag indicating for interlaced surfaces whether Top Field is First",
+                              FALSE,
+                              G_PARAM_READWRITE));
 }
 
 static void
@@ -163,6 +180,7 @@ gst_vaapi_surface_proxy_init(GstVaapiSurfaceProxy *proxy)
     priv->context       = NULL;
     priv->surface       = NULL;
     priv->timestamp     = GST_CLOCK_TIME_NONE;
+    priv->tff           = FALSE;
 }
 
 /**
@@ -332,3 +350,34 @@ gst_vaapi_surface_proxy_set_timestamp(
 
     proxy->priv->timestamp = timestamp;
 }
+
+/**
+ * gst_vaapi_surface_proxy_get_tff:
+ * @proxy: a #GstVaapiSurfaceProxy
+ *
+ * Returns the TFF flag of the #GstVaapiSurface held by @proxy.
+ *
+ * Return value: the TFF flag of the surface
+ */
+gboolean
+gst_vaapi_surface_proxy_get_tff(GstVaapiSurfaceProxy *proxy)
+{
+    g_return_val_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy), FALSE);
+
+    return proxy->priv->tff;
+}
+
+/**
+ * gst_vaapi_surface_proxy_set_tff:
+ * @proxy: a #GstVaapiSurfaceProxy
+ * @tff: the new value of the TFF flag
+ *
+ * Sets the TFF flag of the @proxy surface to @tff.
+ */
+void
+gst_vaapi_surface_proxy_set_tff(GstVaapiSurfaceProxy *proxy, gboolean tff)
+{
+    g_return_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy));
+
+    proxy->priv->tff = tff;
+}
diff --git a/gst-libs/gst/vaapi/gstvaapisurfaceproxy.h b/gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
index 6cc4dea..a6d9630 100644
--- a/gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
+++ b/gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
@@ -72,6 +72,15 @@ G_BEGIN_DECLS
 #define GST_VAAPI_SURFACE_PROXY_TIMESTAMP(surface) \
     gst_vaapi_surface_proxy_get_timestamp(surface)
 
+/**
+ * GST_VAAPI_SURFACE_PROXY_TFF:
+ * @surface: a #GstVaapiSurfaceProxy
+ *
+ * Macro that evaluates to the tff flag of the @surface
+ */
+#define GST_VAAPI_SURFACE_PROXY_TFF(surface) \
+    gst_vaapi_surface_proxy_get_tff(surface)
+
 typedef struct _GstVaapiSurfaceProxy            GstVaapiSurfaceProxy;
 typedef struct _GstVaapiSurfaceProxyPrivate     GstVaapiSurfaceProxyPrivate;
 typedef struct _GstVaapiSurfaceProxyClass       GstVaapiSurfaceProxyClass;
@@ -134,6 +143,12 @@ gst_vaapi_surface_proxy_set_timestamp(
     GstClockTime          timestamp
 );
 
+gboolean
+gst_vaapi_surface_proxy_get_tff(GstVaapiSurfaceProxy *proxy);
+
+void
+gst_vaapi_surface_proxy_set_tff(GstVaapiSurfaceProxy *proxy, gboolean tff);
+
 G_END_DECLS
 
 #endif /* GST_VAAPI_SURFACE_PROXY_H */
-- 
2.7.4