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   memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  53 }
  54
  55 static void
  56 deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
  57     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  58 {
  59   memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  60 }
  61
  62 static void
  63 deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
  64     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  65 {
  66   memcpy (out, scanlines->m1, self->parent.row_stride[1]);
  67 }
  68
  69 static void
  70 deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
  71     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  72 {
  73   memcpy (out, scanlines->m1, self->parent.row_stride[2]);
  74 }
  75
  76 static void
  77 copy_scanline_packed (GstDeinterlaceSimpleMethod * self,
  78     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  79 {
  80   /* FIXME: original code used m2 and m0 but this looks really bad */
  81   if (scanlines->bottom_field) {
  82     memcpy (out, scanlines->bb0, self->parent.row_stride[0]);
  83   } else {
  84     memcpy (out, scanlines->bb2, self->parent.row_stride[0]);
  85   }
  86 }
  87
  88 static void
  89 copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self,
  90     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  91 {
  92   /* FIXME: original code used m2 and m0 but this looks really bad */
  93   if (scanlines->bottom_field) {
  94     memcpy (out, scanlines->bb0, self->parent.row_stride[0]);
  95   } else {
  96     memcpy (out, scanlines->bb2, self->parent.row_stride[0]);
  97   }
  98 }
  99
 100 static void
 101 copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self,
 102     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
 103 {
 104   /* FIXME: original code used m2 and m0 but this looks really bad */
 105   if (scanlines->bottom_field) {
 106     memcpy (out, scanlines->bb0, self->parent.row_stride[1]);
 107   } else {
 108     memcpy (out, scanlines->bb2, self->parent.row_stride[1]);
 109   }
 110 }
 111
 112 static void
 113 copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self,
 114     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
 115 {
 116   /* FIXME: original code used m2 and m0 but this looks really bad */
 117   if (scanlines->bottom_field) {
 118     memcpy (out, scanlines->bb0, self->parent.row_stride[2]);
 119   } else {
 120     memcpy (out, scanlines->bb2, self->parent.row_stride[2]);
 121   }
 122 }
 123
 124 G_DEFINE_TYPE (GstDeinterlaceMethodWeaveTFF, gst_deinterlace_method_weave_tff,
 125     GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
 126
 127 static void
 128 gst_deinterlace_method_weave_tff_class_init (GstDeinterlaceMethodWeaveTFFClass *
 129     klass)
 130 {
 131   GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
 132   GstDeinterlaceSimpleMethodClass *dism_class =
 133       (GstDeinterlaceSimpleMethodClass *) klass;
 134
 135   dim_class->fields_required = 3;
 136   dim_class->name = "Progressive: Top Field First";
 137   dim_class->nick = "weavetff";
 138   dim_class->latency = 0;
 139
 140   dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
 141   dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
 142   dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
 143   dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
 144   dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
 145   dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
 146   dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
 147   dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
 148   dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
 149   dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
 150   dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
 151   dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
 152   dism_class->interpolate_scanline_planar_y =
 153       deinterlace_scanline_weave_planar_y;
 154   dism_class->interpolate_scanline_planar_u =
 155       deinterlace_scanline_weave_planar_u;
 156   dism_class->interpolate_scanline_planar_v =
 157       deinterlace_scanline_weave_planar_v;
 158
 159   dism_class->copy_scanline_ayuv = copy_scanline_packed;
 160   dism_class->copy_scanline_yuy2 = copy_scanline_packed;
 161   dism_class->copy_scanline_yvyu = copy_scanline_packed;
 162   dism_class->copy_scanline_uyvy = copy_scanline_packed;
 163   dism_class->copy_scanline_nv12 = copy_scanline_packed;
 164   dism_class->copy_scanline_nv21 = copy_scanline_packed;
 165   dism_class->copy_scanline_argb = copy_scanline_packed;
 166   dism_class->copy_scanline_abgr = copy_scanline_packed;
 167   dism_class->copy_scanline_rgba = copy_scanline_packed;
 168   dism_class->copy_scanline_bgra = copy_scanline_packed;
 169   dism_class->copy_scanline_rgb = copy_scanline_packed;
 170   dism_class->copy_scanline_bgr = copy_scanline_packed;
 171   dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
 172   dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
 173   dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
 174 }
 175
 176 static void
 177 gst_deinterlace_method_weave_tff_init (GstDeinterlaceMethodWeaveTFF * self)
 178 {
 179 }