mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-30 20:20:38 +00:00
cd76217ce5
Original commit message from CVS: * gst/base/gstbasetransform.c: (gst_base_transform_setcaps), (gst_base_transform_handle_buffer): * gst/base/gstbasetransform.h: Remove broken delay_configure (fixes renegotiation of software scaling pipelines); remove some leftover printf()s.
97 lines
3.4 KiB
C
97 lines
3.4 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;
|
|
};
|
|
|
|
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 size of the output buffer, -1 on error */
|
|
guint (*get_size) (GstBaseTransform *trans);
|
|
|
|
/* 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);
|
|
};
|
|
|
|
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__ */
|