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

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/*
* gstvaapiimagepool.c - Gst VA image pool
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Copyright (C) 2012 Intel Corporation
*
* 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.
*
* This library 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
* Lesser General Public License for more details.
*
* 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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* SECTION:gstvaapiimagepool
* @short_description: VA image pool
*/
#include "sysdeps.h"
#include "gstvaapiimagepool.h"
#include "gstvaapivideopool_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/**
* GstVaapiImagePool:
*
* A pool of lazily allocated #GstVaapiImage objects.
*/
struct _GstVaapiImagePool {
/*< private >*/
GstVaapiVideoPool parent_instance;
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GstVideoFormat format;
guint width;
guint height;
};
static gboolean
image_pool_init(GstVaapiVideoPool *base_pool, const GstVideoInfo *vip)
{
GstVaapiImagePool * const pool = GST_VAAPI_IMAGE_POOL(base_pool);
pool->format = GST_VIDEO_INFO_FORMAT(vip);
pool->width = GST_VIDEO_INFO_WIDTH(vip);
pool->height = GST_VIDEO_INFO_HEIGHT(vip);
return gst_vaapi_display_has_image_format(base_pool->display, pool->format);
}
static gpointer
gst_vaapi_image_pool_alloc_object(GstVaapiVideoPool *base_pool)
{
GstVaapiImagePool * const pool = GST_VAAPI_IMAGE_POOL(base_pool);
return gst_vaapi_image_new(base_pool->display, pool->format,
pool->width, pool->height);
}
static inline const GstVaapiMiniObjectClass *
gst_vaapi_image_pool_class(void)
{
static const GstVaapiVideoPoolClass GstVaapiImagePoolClass = {
{ sizeof(GstVaapiImagePool),
(GDestroyNotify)gst_vaapi_video_pool_finalize },
.alloc_object = gst_vaapi_image_pool_alloc_object
};
return GST_VAAPI_MINI_OBJECT_CLASS(&GstVaapiImagePoolClass);
}
/**
* gst_vaapi_image_pool_new:
* @display: a #GstVaapiDisplay
* @vip: the #GstVideoInfo
*
* Creates a new #GstVaapiVideoPool of #GstVaapiImage with the
* specified format and dimensions in @vip.
*
* Return value: the newly allocated #GstVaapiVideoPool
*/
GstVaapiVideoPool *
gst_vaapi_image_pool_new(GstVaapiDisplay *display, const GstVideoInfo *vip)
{
GstVaapiVideoPool *pool;
g_return_val_if_fail(display != NULL, NULL);
g_return_val_if_fail(vip != NULL, NULL);
pool = (GstVaapiVideoPool *)
gst_vaapi_mini_object_new(gst_vaapi_image_pool_class());
if (!pool)
return NULL;
gst_vaapi_video_pool_init(pool, display,
GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_IMAGE);
if (!image_pool_init(pool, vip))
goto error;
return pool;
error:
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(pool));
return NULL;
}