gstreamer/gst-libs/gst/vaapi/gstvaapisurfacepool.c
Gwenole Beauchesne 7fa4973f8a Fix new video format API.
Fix new internal video format API, based on GstVideoFormat, to not
clobber with system symbols. So replace the gst_video_format_* prefix
with gst_vaapi_video_format_ prefix, even if the format type remains
GstVideoFormat.
2013-07-15 14:42:33 +02:00

131 lines
3.9 KiB
C

/*
* gstvaapisurfacepool.c - Gst VA surface 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
*/
/**
* 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;
GstVideoFormat format;
guint width;
guint height;
};
static gboolean
surface_pool_init(GstVaapiSurfacePool *pool, const GstVideoInfo *vip)
{
pool->format = GST_VIDEO_INFO_FORMAT(vip);
pool->width = GST_VIDEO_INFO_WIDTH(vip);
pool->height = GST_VIDEO_INFO_HEIGHT(vip);
if (pool->format == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
if (pool->format == GST_VIDEO_FORMAT_ENCODED)
pool->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
else
pool->chroma_type = gst_vaapi_video_format_get_chroma_type(pool->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 (pool->format != GST_VIDEO_FORMAT_ENCODED) {
GstVaapiSurface * const surface = gst_vaapi_surface_new_with_format(
base_pool->display, pool->format, pool->width, pool->height);
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, pool->width, pool->height);
}
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
* @vip: a #GstVideoInfo
*
* 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(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_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))
goto error;
return pool;
error:
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(pool));
return NULL;
}