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Add surface proxy that holds a reference to the parent surface
and that returns the surface to that context on destruction.
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246
gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
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246
gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
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/*
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* gstvaapisurfaceproxy.c - VA surface proxy
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*
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* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* SECTION:gstvaapisurfaceproxy
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* @short_description: VA surface proxy
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*/
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#include "config.h"
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#include "gstvaapisurfaceproxy.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE(GstVaapiSurfaceProxy, gst_vaapi_surface_proxy, G_TYPE_OBJECT);
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enum {
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PROP_0,
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PROP_CONTEXT,
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PROP_SURFACE
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};
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static void
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gst_vaapi_surface_proxy_finalize(GObject *object)
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{
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GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
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if (proxy->surface) {
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if (proxy->context)
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gst_vaapi_context_put_surface(proxy->context, proxy->surface);
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g_object_unref(proxy->surface);
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proxy->surface = NULL;
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}
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if (proxy->context) {
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g_object_unref(proxy->context);
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proxy->context = NULL;
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}
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G_OBJECT_CLASS(gst_vaapi_surface_proxy_parent_class)->finalize(object);
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}
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static void
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gst_vaapi_surface_proxy_set_property(
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GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
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switch (prop_id) {
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case PROP_CONTEXT:
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gst_vaapi_surface_proxy_set_context(proxy, g_value_get_pointer(value));
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break;
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case PROP_SURFACE:
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gst_vaapi_surface_proxy_set_surface(proxy, g_value_get_pointer(value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_surface_proxy_get_property(
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GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(object);
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switch (prop_id) {
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case PROP_CONTEXT:
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g_value_set_pointer(value, gst_vaapi_surface_proxy_get_context(proxy));
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break;
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case PROP_SURFACE:
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g_value_set_pointer(value, gst_vaapi_surface_proxy_get_surface(proxy));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_surface_proxy_class_init(GstVaapiSurfaceProxyClass *klass)
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{
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GObjectClass * const object_class = G_OBJECT_CLASS(klass);
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object_class->finalize = gst_vaapi_surface_proxy_finalize;
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object_class->set_property = gst_vaapi_surface_proxy_set_property;
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object_class->get_property = gst_vaapi_surface_proxy_get_property;
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g_object_class_install_property
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(object_class,
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PROP_CONTEXT,
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g_param_spec_pointer("context",
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"Context",
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"The context stored in the proxy",
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G_PARAM_READWRITE));
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g_object_class_install_property
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(object_class,
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PROP_SURFACE,
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g_param_spec_pointer("surface",
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"Surface",
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"The surface stored in the proxy",
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G_PARAM_READWRITE));
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}
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static void
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gst_vaapi_surface_proxy_init(GstVaapiSurfaceProxy *proxy)
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{
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proxy->context = NULL;
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proxy->surface = NULL;
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}
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/**
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* gst_vaapi_surface_proxy_new:
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* @context: a #GstVaapiContext
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* @surface: a #GstVaapiSurface
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*
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* Creates a new #GstVaapiSurfaceProxy with the specified context and
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* surface.
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*
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* Return value: the newly allocated #GstVaapiSurfaceProxy object
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*/
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GstVaapiSurfaceProxy *
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gst_vaapi_surface_proxy_new(GstVaapiContext *context, GstVaapiSurface *surface)
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{
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g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), NULL);
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g_return_val_if_fail(GST_VAAPI_IS_SURFACE(surface), NULL);
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return g_object_new(GST_VAAPI_TYPE_SURFACE_PROXY,
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"context", context,
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"surface", surface,
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NULL);
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}
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/**
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* gst_vaapi_surface_proxy_get_context:
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* @proxy: a #GstVaapiSurfaceProxy
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*
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* Returns the #GstVaapiContext stored in the @proxy.
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*
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* Return value: the #GstVaapiContext
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*/
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GstVaapiContext *
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gst_vaapi_surface_proxy_get_context(GstVaapiSurfaceProxy *proxy)
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{
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g_return_val_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy), NULL);
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return proxy->context;
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}
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/**
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* gst_vaapi_surface_proxy_set_context:
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* @proxy: a #GstVaapiSurfaceProxy
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* @context: the new #GstVaapiContext to be stored in @proxy
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*
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* Stores a new @context into the @proxy. The proxy releases the
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* previous reference, if any, and then holds a reference to the new
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* @context.
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*/
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void
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gst_vaapi_surface_proxy_set_context(
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GstVaapiSurfaceProxy *proxy,
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GstVaapiContext *context
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)
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{
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g_return_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy));
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g_return_if_fail(GST_VAAPI_IS_CONTEXT(context));
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if (proxy->context) {
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g_object_unref(proxy->context);
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proxy->context = NULL;
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}
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if (context)
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proxy->context = g_object_ref(context);
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}
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/**
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* gst_vaapi_surface_proxy_get_surface:
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* @proxy: a #GstVaapiSurfaceProxy
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*
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* Returns the #GstVaapiSurface stored in the @proxy.
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*
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* Return value: the #GstVaapiSurface
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*/
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GstVaapiSurface *
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gst_vaapi_surface_proxy_get_surface(GstVaapiSurfaceProxy *proxy)
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{
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g_return_val_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy), NULL);
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return proxy->surface;
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}
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/**
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* gst_vaapi_surface_proxy_set_surface:
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* @proxy: a #GstVaapiSurfaceProxy
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* @surface: the new #GstVaapiSurface to be stored in @proxy
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*
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* Stores a new @surface into the @proxy. The proxy releases the
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* previous reference, if any, and then holds a reference to the new
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* @surface.
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*/
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void
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gst_vaapi_surface_proxy_set_surface(
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GstVaapiSurfaceProxy *proxy,
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GstVaapiSurface *surface
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)
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{
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g_return_if_fail(GST_VAAPI_IS_SURFACE_PROXY(proxy));
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g_return_if_fail(GST_VAAPI_IS_SURFACE(surface));
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if (proxy->surface) {
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g_object_unref(proxy->surface);
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proxy->surface = NULL;
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}
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if (surface)
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proxy->surface = g_object_ref(surface);
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}
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108
gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
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108
gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
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@ -0,0 +1,108 @@
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/*
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* gstvaapisurfaceproxy.h - VA surface proxy
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*
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* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef GST_VAAPI_SURFACE_PROXY_H
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#define GST_VAAPI_SURFACE_PROXY_H
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#include <glib-object.h>
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#include <gst/vaapi/gstvaapicontext.h>
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#include <gst/vaapi/gstvaapisurface.h>
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G_BEGIN_DECLS
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#define GST_VAAPI_TYPE_SURFACE_PROXY \
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(gst_vaapi_surface_proxy_get_type())
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#define GST_VAAPI_SURFACE_PROXY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), \
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GST_VAAPI_TYPE_SURFACE_PROXY, \
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GstVaapiSurfaceProxy))
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#define GST_VAAPI_SURFACE_PROXY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), \
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GST_VAAPI_TYPE_SURFACE_PROXY, \
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GstVaapiSurfaceProxyClass))
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#define GST_VAAPI_IS_SURFACE_PROXY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_SURFACE_PROXY))
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#define GST_VAAPI_IS_SURFACE_PROXY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_SURFACE_PROXY))
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#define GST_VAAPI_SURFACE_PROXY_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), \
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GST_VAAPI_TYPE_SURFACE_PROXY, \
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GstVaapiSurfaceProxyClass))
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typedef struct _GstVaapiSurfaceProxy GstVaapiSurfaceProxy;
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typedef struct _GstVaapiSurfaceProxyClass GstVaapiSurfaceProxyClass;
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/**
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* GstVaapiSurfaceProxy:
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* @surface: a #GstVaapiSurface
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* @context: the #GstVaapiContext to which the @surface is bound
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*
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* A wrapper around a VA surface and context.
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*/
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struct _GstVaapiSurfaceProxy {
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/*< private >*/
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GObject parent_instance;
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GstVaapiContext *context;
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GstVaapiSurface *surface;
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};
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/**
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* GstVaapiSurfaceProxyClass:
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*
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* A wrapper around a VA surface and context.
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*/
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struct _GstVaapiSurfaceProxyClass {
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/*< private >*/
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GObjectClass parent_class;
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};
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GType
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gst_vaapi_surface_proxy_get_type(void);
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GstVaapiSurfaceProxy *
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gst_vaapi_surface_proxy_new(GstVaapiContext *context, GstVaapiSurface *surface);
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GstVaapiContext *
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gst_vaapi_surface_proxy_get_context(GstVaapiSurfaceProxy *proxy);
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void
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gst_vaapi_surface_proxy_set_context(
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GstVaapiSurfaceProxy *proxy,
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GstVaapiContext *context
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);
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GstVaapiSurface *
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gst_vaapi_surface_proxy_get_surface(GstVaapiSurfaceProxy *proxy);
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void
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gst_vaapi_surface_proxy_set_surface(
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GstVaapiSurfaceProxy *proxy,
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GstVaapiSurface *surface
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);
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G_END_DECLS
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#endif /* GST_VAAPI_SURFACE_PROXY_H */
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