gstreamer/gst/base/gstbasetransform.h
Tim-Philipp Müller 46cc9bc152 gst/: Add padding to our base elements' class and instance structs and to GstIterator (you will need to rebuild all p...
Original commit message from CVS:
* gst/base/gstadapter.h:
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.h:
* gst/base/gstbasetransform.h:
* gst/base/gstcollectpads.h:
* gst/base/gstpushsrc.h:
* gst/gstiterator.h:
Add padding to our base elements' class and instance structs and
to GstIterator (you will need to rebuild all plugins and apps!)
2005-08-08 13:31:09 +00:00

104 lines
3.6 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2005 Wim Taymans <wim@fluendo.com>
*
* gstbasetransform.h:
*
* 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_BASE_TRANSFORM_H__
#define __GST_BASE_TRANSFORM_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_TRANSFORM (gst_base_transform_get_type())
#define GST_BASE_TRANSFORM(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_TRANSFORM,GstBaseTransform))
#define GST_BASE_TRANSFORM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_TRANSFORM,GstBaseTransformClass))
#define GST_BASE_TRANSFORM_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_BASE_TRANSFORM,GstBaseTransformClass))
#define GST_IS_BASE_TRANSFORM(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_TRANSFORM))
#define GST_IS_BASE_TRANSFORM_CLASS(obj)(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_TRANSFORM))
/* the names of the templates for the sink and source pads */
#define GST_BASE_TRANSFORM_SINK_NAME "sink"
#define GST_BASE_TRANSFORM_SRC_NAME "src"
typedef struct _GstBaseTransform GstBaseTransform;
typedef struct _GstBaseTransformClass GstBaseTransformClass;
struct _GstBaseTransform {
GstElement element;
/* source and sink pads */
GstPad *sinkpad;
GstPad *srcpad;
gboolean passthrough;
gboolean in_place;
guint out_size;
gboolean delay_configure;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstBaseTransformClass {
GstElementClass parent_class;
/*< public >*/
/* virtual methods for subclasses */
/* given caps on one pad, what can I do on the other pad */
GstCaps* (*transform_caps) (GstBaseTransform *trans, GstPad *pad,
GstCaps *caps);
/* notify the subclass of new caps */
gboolean (*set_caps) (GstBaseTransform *trans, GstCaps *incaps,
GstCaps *outcaps);
/* get the byte size of a given caps, -1 on error */
guint (*get_size) (GstBaseTransform *trans, GstCaps *caps);
/* start and stop processing, ideal for opening/closing the resource */
gboolean (*start) (GstBaseTransform *trans);
gboolean (*stop) (GstBaseTransform *trans);
gboolean (*event) (GstBaseTransform *trans, GstEvent *event);
/* transform one incoming buffer to one outgoing buffer */
GstFlowReturn (*transform) (GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf);
/* transform a buffer inplace */
GstFlowReturn (*transform_ip) (GstBaseTransform *trans, GstBuffer *buf);
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
void gst_base_transform_set_passthrough (GstBaseTransform *trans, gboolean passthrough);
gboolean gst_base_transform_is_passthrough (GstBaseTransform *trans);
GType gst_base_transform_get_type (void);
G_END_DECLS
#endif /* __GST_BASE_TRANSFORM_H__ */