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Since we started depending on GLib 2.44, we can be sure this macro is defined (it will be a no-op on compilers that don't support it). For plugins we should just start using `G_DECLARE_FINAL_TYPE` which means we no longer need the macro there, but for most types in base/gst-libs we don't want to break ABI, which means it's better to just keep it like it is (and use the `#ifdef` instead).
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_FILTER_H__
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#define __GST_VIDEO_FILTER_H__
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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typedef struct _GstVideoFilter GstVideoFilter;
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typedef struct _GstVideoFilterClass GstVideoFilterClass;
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#define GST_TYPE_VIDEO_FILTER \
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(gst_video_filter_get_type())
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#define GST_VIDEO_FILTER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_FILTER,GstVideoFilter))
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#define GST_VIDEO_FILTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_FILTER,GstVideoFilterClass))
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#define GST_VIDEO_FILTER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_VIDEO_FILTER, GstVideoFilterClass))
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#define GST_IS_VIDEO_FILTER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_FILTER))
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#define GST_IS_VIDEO_FILTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_FILTER))
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#define GST_VIDEO_FILTER_CAST(obj) ((GstVideoFilter *)(obj))
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struct _GstVideoFilter {
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GstBaseTransform element;
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gboolean negotiated;
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GstVideoInfo in_info;
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GstVideoInfo out_info;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstVideoFilterClass:
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* @parent_class: the parent class structure
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* @set_info: function to be called with the negotiated caps and video infos
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* @transform_frame: transform a video frame
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* @transform_frame_ip: transform a video frame in place
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*
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* The video filter class structure.
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*/
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struct _GstVideoFilterClass {
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GstBaseTransformClass parent_class;
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gboolean (*set_info) (GstVideoFilter *filter,
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GstCaps *incaps, GstVideoInfo *in_info,
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GstCaps *outcaps, GstVideoInfo *out_info);
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/* transform */
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GstFlowReturn (*transform_frame) (GstVideoFilter *filter,
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GstVideoFrame *inframe, GstVideoFrame *outframe);
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GstFlowReturn (*transform_frame_ip) (GstVideoFilter *trans, GstVideoFrame *frame);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_VIDEO_API
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GType gst_video_filter_get_type (void);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVideoFilter, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_VIDEO_FILTER_H__ */
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