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bayerutils: add new plugin with bayer2gray, to do caps conversion

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This is a convenience function to avoid using a capssetter when we want to treat
Bayer as gray. In the future we can add properties to balance each element of the
CFA.

Note there's a bug with the in-place transform, so currently a memcpy is being used.
This commit is contained in:
Joshua M. Doe
2020-02-27 10:11:53 -05:00
parent 37aaea1022
commit 8ff872e634
4 changed files with 480 additions and 0 deletions
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78
gst/bayerutils/gstbayer2gray.h Normal file
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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
* Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
* Copyright (C) 2020 United States Government, Joshua M. Doe <oss@nvl.army.mil>
*
* 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_BAYER2GRAY_H__
#define __GST_BAYER2GRAY_H__
#include <gst/video/gstvideofilter.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_BAYER2GRAY \
(gst_bayer2gray_get_type())
#define GST_BAYER2GRAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BAYER2GRAY,GstBayer2Gray))
#define GST_BAYER2GRAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BAYER2GRAY,GstBayer2GrayClass))
#define GST_IS_BAYER2GRAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BAYER2GRAY))
#define GST_IS_BAYER2GRAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BAYER2GRAY))
typedef struct _GstBayer2Gray GstBayer2Gray;
typedef struct _GstBayer2GrayClass GstBayer2GrayClass;
/**
* GstBayer2Gray:
* @element: the parent element.
*
*
* The opaque GstBayer2Gray data structure.
*/
struct _GstBayer2Gray
{
GstBaseTransform element;
/* format */
GstVideoInfo vinfo;
gint width;
gint height;
gint depth;
gint bpp;
gint fps_n;
gint fps_d;
};
struct _GstBayer2GrayClass
{
GstBaseTransformClass parent_class;
};
GType gst_bayer2gray_get_type(void);
G_END_DECLS
#endif /* __GST_BAYER2GRAY_H__ */