gst/deinterlace/tvtime/weave.c

   1 /*
   2  * Weave frames
   3  * Copyright (C) 2002 Billy Biggs <vektor@dumbterm.net>.
   4  * Copyright (C) 2008,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 /*
  23  * Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
  24  * See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include "gstdeinterlacemethod.h"
  32 #include <string.h>
  33
  34 #define GST_TYPE_DEINTERLACE_METHOD_WEAVE       (gst_deinterlace_method_weave_get_type ())
  35 #define GST_IS_DEINTERLACE_METHOD_WEAVE(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE))
  36 #define GST_IS_DEINTERLACE_METHOD_WEAVE_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE))
  37 #define GST_DEINTERLACE_METHOD_WEAVE_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeaveClass))
  38 #define GST_DEINTERLACE_METHOD_WEAVE(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeave))
  39 #define GST_DEINTERLACE_METHOD_WEAVE_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE, GstDeinterlaceMethodWeaveClass))
  40 #define GST_DEINTERLACE_METHOD_WEAVE_CAST(obj)  ((GstDeinterlaceMethodWeave*)(obj))
  41
  42 GType gst_deinterlace_method_weave_get_type (void);
  43
  44 typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeave;
  45 typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveClass;
  46
  47 static void
  48 deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,
  49     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  50 {
  51   if (scanlines->m1 == NULL) {
  52     memcpy (out, scanlines->t0, self->parent.row_stride[0]);
  53   } else {
  54     memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  55   }
  56 }
  57
  58 static void
  59 deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
  60     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  61 {
  62   if (scanlines->m1 == NULL) {
  63     memcpy (out, scanlines->t0, self->parent.row_stride[0]);
  64   } else {
  65     memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  66   }
  67 }
  68
  69 static void
  70 deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
  71     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  72 {
  73   if (scanlines->m1 == NULL) {
  74     memcpy (out, scanlines->t0, self->parent.row_stride[1]);
  75   } else {
  76     memcpy (out, scanlines->m1, self->parent.row_stride[1]);
  77   }
  78 }
  79
  80 static void
  81 deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
  82     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  83 {
  84   if (scanlines->m1 == NULL) {
  85     memcpy (out, scanlines->t0, self->parent.row_stride[2]);
  86   } else {
  87     memcpy (out, scanlines->m1, self->parent.row_stride[2]);
  88   }
  89 }
  90
  91 static void
  92 copy_scanline_packed (GstDeinterlaceSimpleMethod * self, guint8 * out,
  93     const GstDeinterlaceScanlineData * scanlines)
  94 {
  95   memcpy (out, scanlines->m0, self->parent.row_stride[0]);
  96 }
  97
  98 static void
  99 copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self, guint8 * out,
 100     const GstDeinterlaceScanlineData * scanlines)
 101 {
 102   memcpy (out, scanlines->m0, self->parent.row_stride[0]);
 103 }
 104
 105 static void
 106 copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self, guint8 * out,
 107     const GstDeinterlaceScanlineData * scanlines)
 108 {
 109   memcpy (out, scanlines->m0, self->parent.row_stride[1]);
 110 }
 111
 112 static void
 113 copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self, guint8 * out,
 114     const GstDeinterlaceScanlineData * scanlines)
 115 {
 116   memcpy (out, scanlines->m0, self->parent.row_stride[2]);
 117 }
 118
 119 G_DEFINE_TYPE (GstDeinterlaceMethodWeave, gst_deinterlace_method_weave,
 120     GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
 121
 122 static void
 123 gst_deinterlace_method_weave_class_init (GstDeinterlaceMethodWeaveClass * klass)
 124 {
 125   GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
 126   GstDeinterlaceSimpleMethodClass *dism_class =
 127       (GstDeinterlaceSimpleMethodClass *) klass;
 128
 129   dim_class->fields_required = 2;
 130   dim_class->name = "Weave";
 131   dim_class->nick = "weave";
 132   dim_class->latency = 1;
 133
 134   dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
 135   dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
 136   dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
 137   dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
 138   dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
 139   dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
 140   dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
 141   dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
 142   dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
 143   dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
 144   dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
 145   dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
 146   dism_class->interpolate_scanline_planar_y =
 147       deinterlace_scanline_weave_planar_y;
 148   dism_class->interpolate_scanline_planar_u =
 149       deinterlace_scanline_weave_planar_u;
 150   dism_class->interpolate_scanline_planar_v =
 151       deinterlace_scanline_weave_planar_v;
 152
 153   dism_class->copy_scanline_ayuv = copy_scanline_packed;
 154   dism_class->copy_scanline_yuy2 = copy_scanline_packed;
 155   dism_class->copy_scanline_yvyu = copy_scanline_packed;
 156   dism_class->copy_scanline_uyvy = copy_scanline_packed;
 157   dism_class->copy_scanline_nv12 = copy_scanline_packed;
 158   dism_class->copy_scanline_nv21 = copy_scanline_packed;
 159   dism_class->copy_scanline_argb = copy_scanline_packed;
 160   dism_class->copy_scanline_abgr = copy_scanline_packed;
 161   dism_class->copy_scanline_rgba = copy_scanline_packed;
 162   dism_class->copy_scanline_bgra = copy_scanline_packed;
 163   dism_class->copy_scanline_rgb = copy_scanline_packed;
 164   dism_class->copy_scanline_bgr = copy_scanline_packed;
 165   dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
 166   dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
 167   dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
 168 }
 169
 170 static void
 171 gst_deinterlace_method_weave_init (GstDeinterlaceMethodWeave * self)
 172 {
 173 }