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/*
* gstvaapisurfacepool.c - Gst VA surface pool
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2012-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* 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
*/
/**
* SECTION:gstvaapisurfacepool
* @short_description: VA surface pool
*/
#include "sysdeps.h"
#include "gstvaapisurfacepool.h"
#include "gstvaapivideopool_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/**
* GstVaapiSurfacePool:
*
* A pool of lazily allocated #GstVaapiSurface objects.
*/
struct _GstVaapiSurfacePool
{
/*< private > */
GstVaapiVideoPool parent_instance;
GstVaapiChromaType chroma_type;
GstVideoInfo video_info;
guint alloc_flags;
};
static gboolean
surface_pool_init (GstVaapiSurfacePool * pool, const GstVideoInfo * vip,
guint surface_allocation_flags)
{
const GstVideoFormat format = GST_VIDEO_INFO_FORMAT (vip);
pool->video_info = *vip;
pool->alloc_flags = surface_allocation_flags;
if (format == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
if (format == GST_VIDEO_FORMAT_ENCODED)
pool->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
else
pool->chroma_type = gst_vaapi_video_format_get_chroma_type (format);
if (!pool->chroma_type)
return FALSE;
return TRUE;
}
static gpointer
gst_vaapi_surface_pool_alloc_object (GstVaapiVideoPool * base_pool)
{
GstVaapiSurfacePool *const pool = GST_VAAPI_SURFACE_POOL (base_pool);
/* Try to allocate a surface with an explicit pixel format first */
if (GST_VIDEO_INFO_FORMAT (&pool->video_info) != GST_VIDEO_FORMAT_ENCODED) {
GstVaapiSurface *const surface =
gst_vaapi_surface_new_full (base_pool->display, &pool->video_info,
pool->alloc_flags);
if (surface)
return surface;
}
/* Otherwise, fallback to the original interface, based on chroma format */
return gst_vaapi_surface_new (base_pool->display,
pool->chroma_type, GST_VIDEO_INFO_WIDTH (&pool->video_info),
GST_VIDEO_INFO_HEIGHT (&pool->video_info));
}
static inline const GstVaapiMiniObjectClass *
gst_vaapi_surface_pool_class (void)
{
static const GstVaapiVideoPoolClass GstVaapiSurfacePoolClass = {
{sizeof (GstVaapiSurfacePool),
(GDestroyNotify) gst_vaapi_video_pool_finalize}
,
.alloc_object = gst_vaapi_surface_pool_alloc_object
};
return GST_VAAPI_MINI_OBJECT_CLASS (&GstVaapiSurfacePoolClass);
}
/**
* gst_vaapi_surface_pool_new:
* @display: a #GstVaapiDisplay
* @format: a #GstVideoFormat
* @width: the desired width, in pixels
* @height: the desired height, in pixels
*
* Creates a new #GstVaapiVideoPool of #GstVaapiSurface with the specified
* format and dimensions. If @format is GST_VIDEO_FORMAT_ENCODED, then
* surfaces with best "native" format would be created. Typically, this is
* NV12 format, but this is implementation (driver) defined.
*
* Return value: the newly allocated #GstVaapiVideoPool
*/
GstVaapiVideoPool *
gst_vaapi_surface_pool_new (GstVaapiDisplay * display, GstVideoFormat format,
guint width, guint height)
{
GstVideoInfo vi;
g_return_val_if_fail (display != NULL, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
gst_video_info_set_format (&vi, format, width, height);
return gst_vaapi_surface_pool_new_full (display, &vi, 0);
}
/**
* gst_vaapi_surface_pool_new_full:
* @display: a #GstVaapiDisplay
* @vip: a #GstVideoInfo
* @surface_allocation_flags: (optional) allocation flags
*
* Creates a new #GstVaapiVideoPool of #GstVaapiSurface with the
* specified format and dimensions in @vip.
*
* Return value: the newly allocated #GstVaapiVideoPool
*/
GstVaapiVideoPool *
gst_vaapi_surface_pool_new_full (GstVaapiDisplay * display,
const GstVideoInfo * vip, guint surface_allocation_flags)
{
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_surface_pool_class ());
if (!pool)
return NULL;
gst_vaapi_video_pool_init (pool, display,
GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_SURFACE);
if (!surface_pool_init (GST_VAAPI_SURFACE_POOL (pool), vip,
surface_allocation_flags))
goto error;
return pool;
/* ERRORS */
error:
{
gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (pool));
return NULL;
}
}
/**
* gst_vaapi_surface_pool_new_with_chroma_type:
* @display: a #GstVaapiDisplay
* @chroma_type: a #GstVaapiChromatype
* @width: the desired width, in pixels
* @height: the desired height, in pixels
*
* Creates a new #GstVaapiVideoPool of #GstVaapiSurface with the specified
* chroma type and dimensions. The underlying format of the surfaces is
* implementation (driver) defined.
*
* Return value: the newly allocated #GstVaapiVideoPool
*/
GstVaapiVideoPool *
gst_vaapi_surface_pool_new_with_chroma_type (GstVaapiDisplay * display,
GstVaapiChromaType chroma_type, guint width, guint height)
{
GstVaapiVideoPool *pool;
GstVideoInfo vi;
g_return_val_if_fail (display != NULL, NULL);
g_return_val_if_fail (chroma_type > 0, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
gst_video_info_set_format (&vi, GST_VIDEO_FORMAT_ENCODED, width, height);
pool = gst_vaapi_surface_pool_new_full (display, &vi, 0);
if (!pool)
return NULL;
GST_VAAPI_SURFACE_POOL (pool)->chroma_type = chroma_type;
return pool;
}
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