gstreamer/sys/xvimage/xvimagepool.h
Wim Taymans 66142747bd xv: apply cropping on padded images
Store the dimensions of the unpadded image in the metadata and use that info to
display the valid region of the image.
2011-08-01 18:36:33 +02:00

117 lines
3.3 KiB
C

/* GStreamer
* Copyright (C) <2005> Julien Moutte <julien@moutte.net>
*
* 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_XVIMAGEPOOL_H__
#define __GST_XVIMAGEPOOL_H__
#ifdef HAVE_XSHM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#endif /* HAVE_XSHM */
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#ifdef HAVE_XSHM
#include <X11/extensions/XShm.h>
#endif /* HAVE_XSHM */
#include <string.h>
#include <math.h>
G_BEGIN_DECLS
typedef struct _GstMetaXvImage GstMetaXvImage;
typedef struct _GstXvImageBufferPool GstXvImageBufferPool;
typedef struct _GstXvImageBufferPoolClass GstXvImageBufferPoolClass;
typedef struct _GstXvImageBufferPoolPrivate GstXvImageBufferPoolPrivate;
#include "xvimagesink.h"
const GstMetaInfo * gst_meta_xvimage_get_info (void);
#define GST_META_INFO_XVIMAGE (gst_meta_xvimage_get_info())
#define gst_buffer_get_meta_xvimage(b) ((GstMetaXvImage*)gst_buffer_get_meta((b),GST_META_INFO_XVIMAGE))
/**
* GstMetaXvImage:
* @sink: a reference to the our #GstXvImageSink
* @xvimage: the XvImage of this buffer
* @width: the width in pixels of XvImage @xvimage
* @height: the height in pixels of XvImage @xvimage
* @im_format: the format of XvImage @xvimage
* @size: the size in bytes of XvImage @xvimage
*
* Subclass of #GstMeta containing additional information about an XvImage.
*/
struct _GstMetaXvImage
{
GstMeta meta;
/* Reference to the xvimagesink we belong to */
GstXvImageSink *sink;
XvImage *xvimage;
#ifdef HAVE_XSHM
XShmSegmentInfo SHMInfo;
#endif /* HAVE_XSHM */
gint x, y;
gint width, height;
gint im_format;
size_t size;
};
/* buffer pool functions */
#define GST_TYPE_XVIMAGE_BUFFER_POOL (gst_xvimage_buffer_pool_get_type())
#define GST_IS_XVIMAGE_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_XVIMAGE_BUFFER_POOL))
#define GST_XVIMAGE_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_XVIMAGE_BUFFER_POOL, GstXvImageBufferPool))
#define GST_XVIMAGE_BUFFER_POOL_CAST(obj) ((GstXvImageBufferPool*)(obj))
struct _GstXvImageBufferPool
{
GstBufferPool bufferpool;
GstXvImageSink *sink;
GstXvImageBufferPoolPrivate *priv;
};
struct _GstXvImageBufferPoolClass
{
GstBufferPoolClass parent_class;
};
GType gst_xvimage_buffer_pool_get_type (void);
GstBufferPool *gst_xvimage_buffer_pool_new (GstXvImageSink * xvimagesink);
gboolean gst_xvimagesink_check_xshm_calls (GstXvImageSink * xvimagesink,
GstXContext * xcontext);
gint gst_xvimagesink_get_format_from_caps (GstXvImageSink * xvimagesink,
GstCaps * caps);
G_END_DECLS
#endif /*__GST_XVIMAGEPOOL_H__*/