gstreamer/gst/deinterlace/tvtime/weave.c
Wim Taymans abd7e33db6 deinterlace: add support for strides
Implement stride support correctly by taking it from the GstVideoFrame.
Propose a bufferpool upstream when not operating in passthrough.
2012-12-11 13:00:46 +01:00

173 lines
6.6 KiB
C

/*
* Weave frames
* Copyright (C) 2002 Billy Biggs <vektor@dumbterm.net>.
* 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.
*/
/*
* Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
* See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gstdeinterlacemethod.h"
#include <string.h>
#define GST_TYPE_DEINTERLACE_METHOD_WEAVE (gst_deinterlace_method_weave_get_type ())
#define GST_IS_DEINTERLACE_METHOD_WEAVE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE))
#define GST_IS_DEINTERLACE_METHOD_WEAVE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE))
#define GST_DEINTERLACE_METHOD_WEAVE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeaveClass))
#define GST_DEINTERLACE_METHOD_WEAVE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeave))
#define GST_DEINTERLACE_METHOD_WEAVE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeaveClass))
#define GST_DEINTERLACE_METHOD_WEAVE_CAST(obj) ((GstDeinterlaceMethodWeave*)(obj))
GType gst_deinterlace_method_weave_get_type (void);
typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeave;
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveClass;
static void
deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
if (scanlines->m1 == NULL) {
memcpy (out, scanlines->t0, size);
} else {
memcpy (out, scanlines->m1, size);
}
}
static void
deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
if (scanlines->m1 == NULL) {
memcpy (out, scanlines->t0, size);
} else {
memcpy (out, scanlines->m1, size);
}
}
static void
deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
if (scanlines->m1 == NULL) {
memcpy (out, scanlines->t0, size);
} else {
memcpy (out, scanlines->m1, size);
}
}
static void
deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
if (scanlines->m1 == NULL) {
memcpy (out, scanlines->t0, size);
} else {
memcpy (out, scanlines->m1, size);
}
}
static void
copy_scanline_packed (GstDeinterlaceSimpleMethod * self, guint8 * out,
const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->m0, size);
}
static void
copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self, guint8 * out,
const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->m0, size);
}
static void
copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self, guint8 * out,
const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->m0, size);
}
static void
copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self, guint8 * out,
const GstDeinterlaceScanlineData * scanlines, guint size)
{
memcpy (out, scanlines->m0, size);
}
G_DEFINE_TYPE (GstDeinterlaceMethodWeave, gst_deinterlace_method_weave,
GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
static void
gst_deinterlace_method_weave_class_init (GstDeinterlaceMethodWeaveClass * klass)
{
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
GstDeinterlaceSimpleMethodClass *dism_class =
(GstDeinterlaceSimpleMethodClass *) klass;
dim_class->fields_required = 2;
dim_class->name = "Weave";
dim_class->nick = "weave";
dim_class->latency = 1;
dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
dism_class->interpolate_scanline_planar_y =
deinterlace_scanline_weave_planar_y;
dism_class->interpolate_scanline_planar_u =
deinterlace_scanline_weave_planar_u;
dism_class->interpolate_scanline_planar_v =
deinterlace_scanline_weave_planar_v;
dism_class->copy_scanline_ayuv = copy_scanline_packed;
dism_class->copy_scanline_yuy2 = copy_scanline_packed;
dism_class->copy_scanline_yvyu = copy_scanline_packed;
dism_class->copy_scanline_uyvy = copy_scanline_packed;
dism_class->copy_scanline_nv12 = copy_scanline_packed;
dism_class->copy_scanline_nv21 = copy_scanline_packed;
dism_class->copy_scanline_argb = copy_scanline_packed;
dism_class->copy_scanline_abgr = copy_scanline_packed;
dism_class->copy_scanline_rgba = copy_scanline_packed;
dism_class->copy_scanline_bgra = copy_scanline_packed;
dism_class->copy_scanline_rgb = copy_scanline_packed;
dism_class->copy_scanline_bgr = copy_scanline_packed;
dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
}
static void
gst_deinterlace_method_weave_init (GstDeinterlaceMethodWeave * self)
{
}