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/* GStreamer
* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_VIDEO_POOL_H__
#define __GST_VIDEO_POOL_H__
#include <gst/gst.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
/**
* GST_BUFFER_POOL_OPTION_VIDEO_META:
*
* An option that can be activated on bufferpool to request video metadata
* on buffers from the pool.
*/
#define GST_BUFFER_POOL_OPTION_VIDEO_META "GstBufferPoolOptionVideoMeta"
/**
* GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT:
*
* A bufferpool option to enable extra padding. When a bufferpool supports this
* option, gst_buffer_pool_set_video_alignment() can be called.
*/
#define GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT "GstBufferPoolOptionVideoAlignment"
typedef struct _GstVideoAlignment GstVideoAlignment;
/**
* GstVideoAlignment:
* @padding_left: extra pixels on the left side
* @padding_right: extra pixels on the right side
* @padding_top: extra pixels on the top
* @padding_bottom: extra pixels on the bottom
* @stride_align: array with extra alignment requirements for the strides
*
* Extra alignment paramters for the memory of video buffers. This
* structure is usually used to configure the bufferpool if it supports the
* #GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT.
*/
struct _GstVideoAlignment
{
guint padding_top;
guint padding_bottom;
guint padding_left;
guint padding_right;
guint stride_align[GST_VIDEO_MAX_PLANES];
};
void gst_video_alignment_reset (GstVideoAlignment *align);
/* setting a bufferpool config */
void gst_buffer_pool_config_set_video_alignment (GstStructure *config, GstVideoAlignment *align);
gboolean gst_buffer_pool_config_get_video_alignment (GstStructure *config, GstVideoAlignment *align);
/* video bufferpool */
typedef struct _GstVideoBufferPool GstVideoBufferPool;
typedef struct _GstVideoBufferPoolClass GstVideoBufferPoolClass;
typedef struct _GstVideoBufferPoolPrivate GstVideoBufferPoolPrivate;
#define GST_TYPE_VIDEO_BUFFER_POOL (gst_video_buffer_pool_get_type())
#define GST_IS_VIDEO_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_BUFFER_POOL))
#define GST_VIDEO_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_BUFFER_POOL, GstVideoBufferPool))
#define GST_VIDEO_BUFFER_POOL_CAST(obj) ((GstVideoBufferPool*)(obj))
struct _GstVideoBufferPool
{
GstBufferPool bufferpool;
GstVideoBufferPoolPrivate *priv;
};
struct _GstVideoBufferPoolClass
{
GstBufferPoolClass parent_class;
};
GType gst_video_buffer_pool_get_type (void);
GstBufferPool * gst_video_buffer_pool_new (void);
const GstAllocator * gst_video_buffer_pool_get_allocator (GstVideoBufferPool *pool);
void gst_video_buffer_pool_set_allocator (GstVideoBufferPool *pool,
const GstAllocator *allocator);
G_END_DECLS
#endif /* __GST_VIDEO_POOL_H__ */
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