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This effect converts all colors except a single one to grey. The color is selected by an RGB triple and a tolerance for the color matching in hue degree can be specified.
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/* GStreamer
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*
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* Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) 2007 Wim Taymans <wim.taymans@collabora.co.uk>
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* Copyright (C) 2007 Edward Hervey <edward.hervey@collabora.co.uk>
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* Copyright (C) 2007 Jan Schmidt <thaytan@noraisin.net>
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* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_CHROMA_HOLD_H__
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#define __GST_CHROMA_HOLD_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideofilter.h>
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#include <gst/controller/gstcontroller.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CHROMA_HOLD \
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(gst_chroma_hold_get_type())
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#define GST_CHROMA_HOLD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CHROMA_HOLD,GstChromaHold))
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#define GST_CHROMA_HOLD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CHROMA_HOLD,GstChromaHoldClass))
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#define GST_IS_CHROMA_HOLD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CHROMA_HOLD))
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#define GST_IS_CHROMA_HOLD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CHROMA_HOLD))
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typedef struct _GstChromaHold GstChromaHold;
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typedef struct _GstChromaHoldClass GstChromaHoldClass;
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struct _GstChromaHold
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{
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GstVideoFilter parent;
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/* <private> */
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/* caps */
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GStaticMutex lock;
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GstVideoFormat format;
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gint width, height;
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guint target_r;
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guint target_g;
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guint target_b;
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guint tolerance;
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/* processing function */
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void (*process) (guint8 *dest, gint width, gint height, GstChromaHold *chroma_hold);
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/* pre-calculated values */
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gint hue;
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};
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struct _GstChromaHoldClass
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{
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GstVideoFilterClass parent_class;
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};
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GType gst_chroma_hold_get_type (void);
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G_END_DECLS
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#endif /* __GST_CHROMA_HOLD_H__ */
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