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videopool: add stuff related to bufferpools

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Add bufferpool options and extra config parameters.
This commit is contained in:
Wim Taymans 2011-07-29 17:14:07 +02:00
parent b0c64a10f8
commit cfea7a74fd
1 changed files with 76 additions and 0 deletions
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gst-libs/gst/video/gstvideopool.h Normal file
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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_META_VIDEO:
*
* An option that can be activated on bufferpool to request video metadata
* on buffers from the pool.
*/
#define GST_BUFFER_POOL_OPTION_META_VIDEO "GstBufferPoolOptionMetaVideo"
/**
* GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT:
*
* A bufferpool option to enable extra padding. When a bufferpool supports this
* option, gst_buffer_pool_set_video_layout() can be called.
*/
#define GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT "GstBufferPoolOptionVideoLayout"
typedef struct _GstBufferPoolOptionVideoLayout GstBufferPoolOptionVideoLayout;
/**
* GstBufferPoolOptionVideoLayout:
* @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 parameters to configure the memory layout for video buffers. This
* structure is used to configure the bufferpool if it supports the
* #GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT.
*/
struct _GstBufferPoolOptionVideoLayout
{
guint padding_left;
guint padding_right;
guint padding_top;
guint padding_bottom;
gint stride_align[GST_VIDEO_MAX_PLANES];
};
void gst_buffer_pool_config_set_video_layout (GstStructure *config,
GstBufferPoolOptionVideoLayout *layout);
gboolean gst_buffer_pool_config_get_video_layout (GstStructure *config,
GstBufferPoolOptionVideoLayout *layout);
G_END_DECLS
#endif /* __GST_VIDEO_POOL_H__ */