gst/deinterlace/tvtime/weavetff.c

   1 /*
   2  * Weave frames, top-field-first.
   3  * Copyright (C) 2003 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
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include "gstdeinterlacemethod.h"
  33 #include <string.h>
  34
  35 #define GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF   (gst_deinterlace_method_weave_tff_get_type ())
  36 #define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF(obj)                (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
  37 #define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass)        (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
  38 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
  39 #define GST_DEINTERLACE_METHOD_WEAVE_TFF(obj)           (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFF))
  40 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
  41 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_CAST(obj)      ((GstDeinterlaceMethodWeaveTFF*)(obj))
  42
  43 GType gst_deinterlace_method_weave_tff_get_type (void);
  44
  45 typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveTFF;
  46 typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveTFFClass;
  47
  48 static void
  49 deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,
  50     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  51 {
  52   if (scanlines->m1 == NULL) {
  53     memcpy (out, scanlines->t0, self->parent.row_stride[0]);
  54   } else {
  55     memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  56   }
  57 }
  58
  59 static void
  60 deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
  61     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  62 {
  63   if (scanlines->m1 == NULL) {
  64     memcpy (out, scanlines->t0, self->parent.row_stride[0]);
  65   } else {
  66     memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  67   }
  68 }
  69
  70 static void
  71 deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
  72     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  73 {
  74   if (scanlines->m1 == NULL) {
  75     memcpy (out, scanlines->t0, self->parent.row_stride[1]);
  76   } else {
  77     memcpy (out, scanlines->m1, self->parent.row_stride[1]);
  78   }
  79 }
  80
  81 static void
  82 deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
  83     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  84 {
  85   if (scanlines->m1 == NULL) {
  86     memcpy (out, scanlines->t0, self->parent.row_stride[2]);
  87   } else {
  88     memcpy (out, scanlines->m1, self->parent.row_stride[2]);
  89   }
  90 }
  91
  92 static void
  93 copy_scanline_packed (GstDeinterlaceSimpleMethod * self,
  94     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  95 {
  96   memcpy (out, scanlines->m0, self->parent.row_stride[0]);
  97 }
  98
  99 static void
 100 copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self,
 101     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
 102 {
 103   memcpy (out, scanlines->m0, self->parent.row_stride[0]);
 104 }
 105
 106 static void
 107 copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self,
 108     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
 109 {
 110   memcpy (out, scanlines->m0, self->parent.row_stride[1]);
 111 }
 112
 113 static void
 114 copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self,
 115     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
 116 {
 117   memcpy (out, scanlines->m0, self->parent.row_stride[2]);
 118 }
 119
 120 G_DEFINE_TYPE (GstDeinterlaceMethodWeaveTFF, gst_deinterlace_method_weave_tff,
 121     GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
 122
 123 static void
 124 gst_deinterlace_method_weave_tff_class_init (GstDeinterlaceMethodWeaveTFFClass *
 125     klass)
 126 {
 127   GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
 128   GstDeinterlaceSimpleMethodClass *dism_class =
 129       (GstDeinterlaceSimpleMethodClass *) klass;
 130
 131   dim_class->fields_required = 2;
 132   dim_class->name = "Progressive: Top Field First";
 133   dim_class->nick = "weavetff";
 134   dim_class->latency = 1;
 135
 136   dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
 137   dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
 138   dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
 139   dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
 140   dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
 141   dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
 142   dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
 143   dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
 144   dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
 145   dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
 146   dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
 147   dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
 148   dism_class->interpolate_scanline_planar_y =
 149       deinterlace_scanline_weave_planar_y;
 150   dism_class->interpolate_scanline_planar_u =
 151       deinterlace_scanline_weave_planar_u;
 152   dism_class->interpolate_scanline_planar_v =
 153       deinterlace_scanline_weave_planar_v;
 154
 155   dism_class->copy_scanline_ayuv = copy_scanline_packed;
 156   dism_class->copy_scanline_yuy2 = copy_scanline_packed;
 157   dism_class->copy_scanline_yvyu = copy_scanline_packed;
 158   dism_class->copy_scanline_uyvy = copy_scanline_packed;
 159   dism_class->copy_scanline_nv12 = copy_scanline_packed;
 160   dism_class->copy_scanline_nv21 = copy_scanline_packed;
 161   dism_class->copy_scanline_argb = copy_scanline_packed;
 162   dism_class->copy_scanline_abgr = copy_scanline_packed;
 163   dism_class->copy_scanline_rgba = copy_scanline_packed;
 164   dism_class->copy_scanline_bgra = copy_scanline_packed;
 165   dism_class->copy_scanline_rgb = copy_scanline_packed;
 166   dism_class->copy_scanline_bgr = copy_scanline_packed;
 167   dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
 168   dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
 169   dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
 170 }
 171
 172 static void
 173 gst_deinterlace_method_weave_tff_init (GstDeinterlaceMethodWeaveTFF * self)
 174 {
 175 }