gstreamer/gst-libs/gst/vaapi/gstvaapisurfacepool.c

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/*
* gstvaapisurfacepool.c - Gst VA surface pool
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
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*
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* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
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*
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* This library 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 GNU
* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
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*/
/**
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* SECTION:gstvaapisurfacepool
* @short_description: VA surface pool
*/
#include "sysdeps.h"
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#include "gstvaapisurfacepool.h"
#define DEBUG 1
#include "gstvaapidebug.h"
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G_DEFINE_TYPE(
GstVaapiSurfacePool,
gst_vaapi_surface_pool,
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GST_VAAPI_TYPE_VIDEO_POOL)
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#define GST_VAAPI_SURFACE_POOL_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE((obj), \
GST_VAAPI_TYPE_SURFACE_POOL, \
GstVaapiSurfacePoolPrivate))
struct _GstVaapiSurfacePoolPrivate {
GstVaapiChromaType chroma_type;
guint width;
guint height;
};
static void
gst_vaapi_surface_pool_set_caps(GstVaapiVideoPool *pool, GstCaps *caps)
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{
GstVaapiSurfacePoolPrivate *priv = GST_VAAPI_SURFACE_POOL(pool)->priv;
GstStructure *structure;
gint width, height;
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structure = gst_caps_get_structure(caps, 0);
gst_structure_get_int(structure, "width", &width);
gst_structure_get_int(structure, "height", &height);
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priv->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
priv->width = width;
priv->height = height;
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}
gpointer
gst_vaapi_surface_pool_alloc_object(
GstVaapiVideoPool *pool,
GstVaapiDisplay *display
)
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{
GstVaapiSurfacePoolPrivate *priv = GST_VAAPI_SURFACE_POOL(pool)->priv;
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return gst_vaapi_surface_new(display,
priv->chroma_type,
priv->width,
priv->height);
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}
static void
gst_vaapi_surface_pool_finalize(GObject *object)
{
G_OBJECT_CLASS(gst_vaapi_surface_pool_parent_class)->finalize(object);
}
static void
gst_vaapi_surface_pool_class_init(GstVaapiSurfacePoolClass *klass)
{
GObjectClass * const object_class = G_OBJECT_CLASS(klass);
GstVaapiVideoPoolClass * const pool_class = GST_VAAPI_VIDEO_POOL_CLASS(klass);
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g_type_class_add_private(klass, sizeof(GstVaapiSurfacePoolPrivate));
object_class->finalize = gst_vaapi_surface_pool_finalize;
pool_class->set_caps = gst_vaapi_surface_pool_set_caps;
pool_class->alloc_object = gst_vaapi_surface_pool_alloc_object;
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}
static void
gst_vaapi_surface_pool_init(GstVaapiSurfacePool *pool)
{
GstVaapiSurfacePoolPrivate *priv = GST_VAAPI_SURFACE_POOL_GET_PRIVATE(pool);
pool->priv = priv;
priv->chroma_type = 0;
priv->width = 0;
priv->height = 0;
}
/**
* gst_vaapi_surface_pool_new:
* @display: a #GstVaapiDisplay
* @caps: a #GstCaps
*
* Creates a new #GstVaapiVideoPool of #GstVaapiSurface with the
* specified dimensions in @caps.
*
* Return value: the newly allocated #GstVaapiVideoPool
*/
GstVaapiVideoPool *
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gst_vaapi_surface_pool_new(GstVaapiDisplay *display, GstCaps *caps)
{
return g_object_new(GST_VAAPI_TYPE_SURFACE_POOL,
"display", display,
"caps", caps,
NULL);
}