mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 18:50:48 +00:00
140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/* GStreamer
|
|
* Copyright (C) <2009> Руслан Ижбулатов <lrn1986 _at_ gmail _dot_ com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 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
|
|
* Lesser General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef __GST_SSIM_H__
|
|
#define __GST_SSIM_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstcollectpads.h>
|
|
#include <gst/video/video.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_SSIM_TYPE,
|
|
PROP_WINDOW_TYPE,
|
|
PROP_WINDOW_SIZE,
|
|
PROP_GAUSS_SIGMA,
|
|
};
|
|
|
|
|
|
#define GST_TYPE_SSIM (gst_ssim_get_type())
|
|
#define GST_SSIM(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), \
|
|
GST_TYPE_SSIM,GstSSim))
|
|
#define GST_IS_SSIM(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), \
|
|
GST_TYPE_SSIM))
|
|
#define GST_SSIM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , \
|
|
GST_TYPE_SSIM,GstSSimClass))
|
|
#define GST_IS_SSIM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , \
|
|
GST_TYPE_SSIM))
|
|
#define GST_SSIM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , \
|
|
GST_TYPE_SSIM,GstSSimClass))
|
|
|
|
typedef struct _GstSSim GstSSim;
|
|
typedef struct _GstSSimClass GstSSimClass;
|
|
|
|
typedef struct _GstSSimWindowCache {
|
|
gint x_window_start;
|
|
gint x_weight_start;
|
|
gint x_window_end;
|
|
gint y_window_start;
|
|
gint y_weight_start;
|
|
gint y_window_end;
|
|
gfloat element_summ;
|
|
} GstSSimWindowCache;
|
|
|
|
typedef void (*GstSSimFunction) (GstSSim *ssim, guint8 *org, gfloat *orgmu,
|
|
guint8 *mod, guint8 *out, gfloat *mean, gfloat *lowest, gfloat *highest);
|
|
|
|
typedef struct _GstSSimOutputContext GstSSimOutputContext;
|
|
|
|
/* TODO: check if all fields are used */
|
|
struct _GstSSimOutputContext {
|
|
GstPad *pad;
|
|
gboolean segment_pending;
|
|
};
|
|
|
|
/**
|
|
* GstSSim:
|
|
*
|
|
* The ssim object structure.
|
|
*/
|
|
struct _GstSSim {
|
|
GstElement element;
|
|
|
|
/* Array of GstSSimOutputContext */
|
|
GPtrArray *src;
|
|
|
|
gint padcount;
|
|
|
|
GstCollectPads *collect;
|
|
GstPad *orig;
|
|
|
|
gint frame_rate;
|
|
gint frame_rate_base;
|
|
gint width;
|
|
gint height;
|
|
GstCaps *sinkcaps;
|
|
GstCaps *srccaps;
|
|
|
|
/* SSIM type (0 - canonical; 1 - without mu) */
|
|
gint ssimtype;
|
|
|
|
/* Size of a window, windows are square */
|
|
gint windowsize;
|
|
|
|
/* Type of a weight-generator. 0 - no weighting. 1 - Gaussian weighting */
|
|
gint windowtype;
|
|
|
|
/* Array of width*height GstSSimWindowCaches */
|
|
GstSSimWindowCache *windows;
|
|
|
|
/* Array of windowsize*windowsize gfloats */
|
|
gfloat *weights;
|
|
|
|
/* For Gaussian function */
|
|
gfloat sigma;
|
|
|
|
GstSSimFunction func;
|
|
|
|
gfloat const1;
|
|
gfloat const2;
|
|
|
|
/* counters to keep track of timestamps */
|
|
gint64 timestamp;
|
|
gint64 offset;
|
|
|
|
/* sink event handling */
|
|
GstPadEventFunction collect_event;
|
|
GstSegment segment;
|
|
guint64 segment_position;
|
|
gdouble segment_rate;
|
|
};
|
|
|
|
struct _GstSSimClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_ssim_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_SSIM_H__ */
|