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3bdd50c93b
This makes sure that we don't get any gaps between rectangles because of chroma subsampling for example.
89 lines
2.6 KiB
C
89 lines
2.6 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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#ifndef __GST_VIDEO_BOX_H__
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#define __GST_VIDEO_BOX_H__
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#define GST_TYPE_VIDEO_BOX \
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(gst_video_box_get_type())
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#define GST_VIDEO_BOX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_BOX,GstVideoBox))
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#define GST_VIDEO_BOX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_BOX,GstVideoBoxClass))
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#define GST_IS_VIDEO_BOX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_BOX))
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#define GST_IS_VIDEO_BOX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_BOX))
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typedef struct _GstVideoBox GstVideoBox;
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typedef struct _GstVideoBoxClass GstVideoBoxClass;
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typedef enum
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{
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VIDEO_BOX_FILL_BLACK,
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VIDEO_BOX_FILL_GREEN,
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VIDEO_BOX_FILL_BLUE,
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VIDEO_BOX_FILL_LAST
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}
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GstVideoBoxFill;
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struct _GstVideoBox
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{
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GstBaseTransform element;
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/* <private> */
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/* Guarding everything below */
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GMutex *mutex;
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/* caps */
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GstVideoFormat in_format;
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gint in_width, in_height;
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gboolean in_sdtv;
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GstVideoFormat out_format;
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gint out_width, out_height;
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gboolean out_sdtv;
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gint box_left, box_right, box_top, box_bottom;
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gint border_left, border_right, border_top, border_bottom;
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gint crop_left, crop_right, crop_top, crop_bottom;
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gdouble alpha;
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gdouble border_alpha;
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GstVideoBoxFill fill_type;
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gboolean autocrop;
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void (*fill) (GstVideoBoxFill fill_type, guint b_alpha, guint8 *dest, gboolean sdtv, gint width, gint height);
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void (*copy) (guint i_alpha, guint8 *dest, gboolean dest_sdtv, gint dest_width, gint dest_height, gint dest_x, gint dest_y, const guint8 *src, gboolean src_sdtv, gint src_width, gint src_height, gint src_x, gint src_y, gint w, gint h);
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};
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struct _GstVideoBoxClass
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{
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GstBaseTransformClass parent_class;
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};
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GType gst_video_box_get_type (void);
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#endif /* __GST_VIDEO_BOX_H__ */
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