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Add surface proxy that holds a reference to the parent surface

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and that returns the surface to that context on destruction.
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gb 2010-04-23 16:00:50 +00:00
parent ecf60d2284
commit 5fb146c298
2 changed files with 354 additions and 0 deletions
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246
gst-libs/gst/vaapi/gstvaapisurfaceproxy.c Normal file
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/*
* gstvaapisurfaceproxy.c - VA surface proxy
*
* 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
*/
/**
* SECTION:gstvaapisurfaceproxy
* @short_description: VA surface proxy
*/
#include "config.h"
#include "gstvaapisurfaceproxy.h"
#define DEBUG 1
#include "gstvaapidebug.h"
G_DEFINE_TYPE(GstVaapiSurfaceProxy, gst_vaapi_surface_proxy, G_TYPE_OBJECT);
enum {
PROP_0,
PROP_CONTEXT,
PROP_SURFACE
};
static void
gst_vaapi_surface_proxy_finalize(GObject *object)
{
GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
if (proxy->surface) {
if (proxy->context)
gst_vaapi_context_put_surface(proxy->context, proxy->surface);
g_object_unref(proxy->surface);
proxy->surface = NULL;
}
if (proxy->context) {
g_object_unref(proxy->context);
proxy->context = NULL;
}
G_OBJECT_CLASS(gst_vaapi_surface_proxy_parent_class)->finalize(object);
}
static void
gst_vaapi_surface_proxy_set_property(
GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec
)
{
GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
switch (prop_id) {
case PROP_CONTEXT:
gst_vaapi_surface_proxy_set_context(proxy, g_value_get_pointer(value));
break;
case PROP_SURFACE:
gst_vaapi_surface_proxy_set_surface(proxy, g_value_get_pointer(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void
gst_vaapi_surface_proxy_get_property(
GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec
)
{
GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
switch (prop_id) {
case PROP_CONTEXT:
g_value_set_pointer(value, gst_vaapi_surface_proxy_get_context(proxy));
break;
case PROP_SURFACE:
g_value_set_pointer(value, gst_vaapi_surface_proxy_get_surface(proxy));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void
gst_vaapi_surface_proxy_class_init(GstVaapiSurfaceProxyClass *klass)
{
GObjectClass * const object_class = G_OBJECT_CLASS(klass);
object_class->finalize = gst_vaapi_surface_proxy_finalize;
object_class->set_property = gst_vaapi_surface_proxy_set_property;
object_class->get_property = gst_vaapi_surface_proxy_get_property;
g_object_class_install_property
(object_class,
PROP_CONTEXT,
g_param_spec_pointer("context",
"Context",
"The context stored in the proxy",
G_PARAM_READWRITE));
g_object_class_install_property
(object_class,
PROP_SURFACE,
g_param_spec_pointer("surface",
"Surface",
"The surface stored in the proxy",
G_PARAM_READWRITE));
}
static void
gst_vaapi_surface_proxy_init(GstVaapiSurfaceProxy *proxy)
{
proxy->context = NULL;
proxy->surface = NULL;
}
/**
* gst_vaapi_surface_proxy_new:
* @context: a #GstVaapiContext
* @surface: a #GstVaapiSurface
*
* Creates a new #GstVaapiSurfaceProxy with the specified context and
* surface.
*
* Return value: the newly allocated #GstVaapiSurfaceProxy object
*/
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new(GstVaapiContext *context, GstVaapiSurface *surface)
{
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), NULL);
g_return_val_if_fail(GST_VAAPI_IS_SURFACE(surface), NULL);
return g_object_new(GST_VAAPI_TYPE_SURFACE_PROXY,
"context", context,
"surface", surface,
NULL);
}
/**
* gst_vaapi_surface_proxy_get_context:
* @proxy: a #GstVaapiSurfaceProxy
*
* Returns the #GstVaapiContext stored in the @proxy.
*
* Return value: the #GstVaapiContext
*/
GstVaapiContext *
gst_vaapi_surface_proxy_get_context(GstVaapiSurfaceProxy *proxy)
{
g_return_val_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy), NULL);
return proxy->context;
}
/**
* gst_vaapi_surface_proxy_set_context:
* @proxy: a #GstVaapiSurfaceProxy
* @context: the new #GstVaapiContext to be stored in @proxy
*
* Stores a new @context into the @proxy. The proxy releases the
* previous reference, if any, and then holds a reference to the new
* @context.
*/
void
gst_vaapi_surface_proxy_set_context(
GstVaapiSurfaceProxy *proxy,
GstVaapiContext *context
)
{
g_return_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy));
g_return_if_fail(GST_VAAPI_IS_CONTEXT(context));
if (proxy->context) {
g_object_unref(proxy->context);
proxy->context = NULL;
}
if (context)
proxy->context = g_object_ref(context);
}
/**
* gst_vaapi_surface_proxy_get_surface:
* @proxy: a #GstVaapiSurfaceProxy
*
* Returns the #GstVaapiSurface stored in the @proxy.
*
* Return value: the #GstVaapiSurface
*/
GstVaapiSurface *
gst_vaapi_surface_proxy_get_surface(GstVaapiSurfaceProxy *proxy)
{
g_return_val_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy), NULL);
return proxy->surface;
}
/**
* gst_vaapi_surface_proxy_set_surface:
* @proxy: a #GstVaapiSurfaceProxy
* @surface: the new #GstVaapiSurface to be stored in @proxy
*
* Stores a new @surface into the @proxy. The proxy releases the
* previous reference, if any, and then holds a reference to the new
* @surface.
*/
void
gst_vaapi_surface_proxy_set_surface(
GstVaapiSurfaceProxy *proxy,
GstVaapiSurface *surface
)
{
g_return_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy));
g_return_if_fail(GST_VAAPI_IS_SURFACE(surface));
if (proxy->surface) {
g_object_unref(proxy->surface);
proxy->surface = NULL;
}
if (surface)
proxy->surface = g_object_ref(surface);
}

108
gst-libs/gst/vaapi/gstvaapisurfaceproxy.h Normal file
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/*
* gstvaapisurfaceproxy.h - VA surface proxy
*
* 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_SURFACE_PROXY_H
#define GST_VAAPI_SURFACE_PROXY_H
#include <glib-object.h>
#include <gst/vaapi/gstvaapicontext.h>
#include <gst/vaapi/gstvaapisurface.h>
G_BEGIN_DECLS
#define GST_VAAPI_TYPE_SURFACE_PROXY \
(gst_vaapi_surface_proxy_get_type())
#define GST_VAAPI_SURFACE_PROXY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
GST_VAAPI_TYPE_SURFACE_PROXY, \
GstVaapiSurfaceProxy))
#define GST_VAAPI_SURFACE_PROXY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
GST_VAAPI_TYPE_SURFACE_PROXY, \
GstVaapiSurfaceProxyClass))
#define GST_VAAPI_IS_SURFACE_PROXY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_SURFACE_PROXY))
#define GST_VAAPI_IS_SURFACE_PROXY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_SURFACE_PROXY))
#define GST_VAAPI_SURFACE_PROXY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
GST_VAAPI_TYPE_SURFACE_PROXY, \
GstVaapiSurfaceProxyClass))
typedef struct _GstVaapiSurfaceProxy GstVaapiSurfaceProxy;
typedef struct _GstVaapiSurfaceProxyClass GstVaapiSurfaceProxyClass;
/**
* GstVaapiSurfaceProxy:
* @surface: a #GstVaapiSurface
* @context: the #GstVaapiContext to which the @surface is bound
*
* A wrapper around a VA surface and context.
*/
struct _GstVaapiSurfaceProxy {
/*< private >*/
GObject parent_instance;
GstVaapiContext *context;
GstVaapiSurface *surface;
};
/**
* GstVaapiSurfaceProxyClass:
*
* A wrapper around a VA surface and context.
*/
struct _GstVaapiSurfaceProxyClass {
/*< private >*/
GObjectClass parent_class;
};
GType
gst_vaapi_surface_proxy_get_type(void);
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new(GstVaapiContext *context, GstVaapiSurface *surface);
GstVaapiContext *
gst_vaapi_surface_proxy_get_context(GstVaapiSurfaceProxy *proxy);
void
gst_vaapi_surface_proxy_set_context(
GstVaapiSurfaceProxy *proxy,
GstVaapiContext *context
);
GstVaapiSurface *
gst_vaapi_surface_proxy_get_surface(GstVaapiSurfaceProxy *proxy);
void
gst_vaapi_surface_proxy_set_surface(
GstVaapiSurfaceProxy *proxy,
GstVaapiSurface *surface
);
G_END_DECLS
#endif /* GST_VAAPI_SURFACE_PROXY_H */