gstreamer/subprojects/gst-plugins-good/gst/deinterlace/tvtime/scalerbob.c
Jan Alexander Steffens (heftig) 2db283499e deinterlace: scalerbob: Reduce latency to 0
We only need the current field, just like `linear`.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1926>
2022-03-12 22:48:39 +00:00

118 lines
4.8 KiB
C

/*
* Double lines
* Copyright (C) 2008,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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 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 St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gstdeinterlacemethod.h"
#include <string.h>
#define GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB (gst_deinterlace_method_scaler_bob_get_type ())
#define GST_IS_DEINTERLACE_METHOD_SCALER_BOB(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB))
#define GST_IS_DEINTERLACE_METHOD_SCALER_BOB_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB))
#define GST_DEINTERLACE_METHOD_SCALER_BOB_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB, GstDeinterlaceMethodScalerBobClass))
#define GST_DEINTERLACE_METHOD_SCALER_BOB(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB, GstDeinterlaceMethodScalerBob))
#define GST_DEINTERLACE_METHOD_SCALER_BOB_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_SCALER_BOB, GstDeinterlaceMethodScalerBobClass))
#define GST_DEINTERLACE_METHOD_SCALER_BOB_CAST(obj) ((GstDeinterlaceMethodScalerBob*)(obj))
GType gst_deinterlace_method_scaler_bob_get_type (void);
typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodScalerBob;
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodScalerBobClass;
static void
deinterlace_scanline_scaler_bob_packed (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->t0, size);
}
static void
deinterlace_scanline_scaler_bob_planar_y (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->t0, size);
}
static void
deinterlace_scanline_scaler_bob_planar_u (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->t0, size);
}
static void
deinterlace_scanline_scaler_bob_planar_v (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->t0, size);
}
G_DEFINE_TYPE (GstDeinterlaceMethodScalerBob, gst_deinterlace_method_scaler_bob,
GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
static void
gst_deinterlace_method_scaler_bob_class_init (GstDeinterlaceMethodScalerBobClass
* klass)
{
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
GstDeinterlaceSimpleMethodClass *dism_class =
(GstDeinterlaceSimpleMethodClass *) klass;
dim_class->fields_required = 1;
dim_class->name = "Double lines";
dim_class->nick = "scalerbob";
dim_class->latency = 0;
dism_class->interpolate_scanline_ayuv =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_yuy2 =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_yvyu =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_uyvy =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_nv12 =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_nv21 =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_argb =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_abgr =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_rgba =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_bgra =
deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_rgb = deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_bgr = deinterlace_scanline_scaler_bob_packed;
dism_class->interpolate_scanline_planar_y =
deinterlace_scanline_scaler_bob_planar_y;
dism_class->interpolate_scanline_planar_u =
deinterlace_scanline_scaler_bob_planar_u;
dism_class->interpolate_scanline_planar_v =
deinterlace_scanline_scaler_bob_planar_v;
}
static void
gst_deinterlace_method_scaler_bob_init (GstDeinterlaceMethodScalerBob * self)
{
}