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117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/*
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* gstvaapiimagepool.c - Gst VA image pool
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2012 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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
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* 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
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapiimagepool
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* @short_description: VA image pool
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*/
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#include "sysdeps.h"
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#include "gstvaapiimagepool.h"
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#include "gstvaapivideopool_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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/**
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* GstVaapiImagePool:
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*
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* A pool of lazily allocated #GstVaapiImage objects.
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*/
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struct _GstVaapiImagePool {
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/*< private >*/
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GstVaapiVideoPool parent_instance;
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GstVaapiImageFormat format;
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guint width;
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guint height;
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};
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static gboolean
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gst_vaapi_image_pool_set_caps(GstVaapiVideoPool *base_pool, GstCaps *caps)
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{
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GstVaapiImagePool * const pool = GST_VAAPI_IMAGE_POOL(base_pool);
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GstVideoInfo vi;
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if (!gst_video_info_from_caps(&vi, caps))
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return FALSE;
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pool->format = gst_vaapi_image_format_from_video(GST_VIDEO_INFO_FORMAT(&vi));
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pool->width = GST_VIDEO_INFO_WIDTH(&vi);
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pool->height = GST_VIDEO_INFO_HEIGHT(&vi);
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return TRUE;
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}
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static gpointer
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gst_vaapi_image_pool_alloc_object(GstVaapiVideoPool *base_pool)
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{
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GstVaapiImagePool * const pool = GST_VAAPI_IMAGE_POOL(base_pool);
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return gst_vaapi_image_new(base_pool->display, pool->format,
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pool->width, pool->height);
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}
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static inline const GstVaapiMiniObjectClass *
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gst_vaapi_image_pool_class(void)
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{
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static const GstVaapiVideoPoolClass GstVaapiImagePoolClass = {
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{ sizeof(GstVaapiImagePool),
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(GDestroyNotify)gst_vaapi_video_pool_finalize },
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.alloc_object = gst_vaapi_image_pool_alloc_object
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};
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return GST_VAAPI_MINI_OBJECT_CLASS(&GstVaapiImagePoolClass);
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}
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/**
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* gst_vaapi_image_pool_new:
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* @display: a #GstVaapiDisplay
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* @caps: a #GstCaps
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*
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* Creates a new #GstVaapiVideoPool of #GstVaapiImage with the
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* specified dimensions in @caps.
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*
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* Return value: the newly allocated #GstVaapiVideoPool
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*/
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GstVaapiVideoPool *
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gst_vaapi_image_pool_new(GstVaapiDisplay *display, GstCaps *caps)
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{
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GstVaapiVideoPool *pool;
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g_return_val_if_fail(display != NULL, NULL);
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g_return_val_if_fail(GST_IS_CAPS(caps), NULL);
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pool = (GstVaapiVideoPool *)
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gst_vaapi_mini_object_new(gst_vaapi_image_pool_class());
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if (!pool)
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return NULL;
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gst_vaapi_video_pool_init(pool, display,
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GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_IMAGE);
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if (!gst_vaapi_image_pool_set_caps(pool, caps))
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goto error;
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return pool;
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error:
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gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(pool));
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return NULL;
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}
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