gst/deinterlace/tvtime/weavebff.c

   1 /*
   2  * Weave frames, bottom-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 #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_BFF   (gst_deinterlace_method_weave_bff_get_type ())
  35 #define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF(obj)                (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))
  36 #define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass)        (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))
  37 #define GST_DEINTERLACE_METHOD_WEAVE_BFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))
  38 #define GST_DEINTERLACE_METHOD_WEAVE_BFF(obj)           (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFF))
  39 #define GST_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))
  40 #define GST_DEINTERLACE_METHOD_WEAVE_BFF_CAST(obj)      ((GstDeinterlaceMethodWeaveBFF*)(obj))
  41
  42 GType gst_deinterlace_method_weave_bff_get_type (void);
  43
  44 typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveBFF;
  45 typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveBFFClass;
  46
  47 static void
  48 deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,
  49     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  50 {
  51   memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  52 }
  53
  54 static void
  55 deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
  56     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  57 {
  58   memcpy (out, scanlines->m1, self->parent.row_stride[0]);
  59 }
  60
  61 static void
  62 deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
  63     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  64 {
  65   memcpy (out, scanlines->m1, self->parent.row_stride[1]);
  66 }
  67
  68 static void
  69 deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
  70     guint8 * out, const GstDeinterlaceScanlineData * scanlines)
  71 {
  72   memcpy (out, scanlines->m1, self->parent.row_stride[2]);
  73 }
  74
  75 static void
  76 copy_scanline_packed (GstDeinterlaceSimpleMethod * self, guint8 * out,
  77     const GstDeinterlaceScanlineData * scanlines)
  78 {
  79   /* FIXME: original code used m2 and m0 but this looks really bad */
  80   if (scanlines->bottom_field) {
  81     memcpy (out, scanlines->bb2, self->parent.row_stride[0]);
  82   } else {
  83     memcpy (out, scanlines->bb0, self->parent.row_stride[0]);
  84   }
  85 }
  86
  87 static void
  88 copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self, guint8 * out,
  89     const GstDeinterlaceScanlineData * scanlines)
  90 {
  91   /* FIXME: original code used m2 and m0 but this looks really bad */
  92   if (scanlines->bottom_field) {
  93     memcpy (out, scanlines->bb2, self->parent.row_stride[0]);
  94   } else {
  95     memcpy (out, scanlines->bb0, self->parent.row_stride[0]);
  96   }
  97 }
  98
  99 static void
 100 copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self, guint8 * out,
 101     const GstDeinterlaceScanlineData * scanlines)
 102 {
 103   /* FIXME: original code used m2 and m0 but this looks really bad */
 104   if (scanlines->bottom_field) {
 105     memcpy (out, scanlines->bb2, self->parent.row_stride[1]);
 106   } else {
 107     memcpy (out, scanlines->bb0, self->parent.row_stride[1]);
 108   }
 109 }
 110
 111 static void
 112 copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self, guint8 * out,
 113     const GstDeinterlaceScanlineData * scanlines)
 114 {
 115   /* FIXME: original code used m2 and m0 but this looks really bad */
 116   if (scanlines->bottom_field) {
 117     memcpy (out, scanlines->bb2, self->parent.row_stride[2]);
 118   } else {
 119     memcpy (out, scanlines->bb0, self->parent.row_stride[2]);
 120   }
 121 }
 122
 123 G_DEFINE_TYPE (GstDeinterlaceMethodWeaveBFF, gst_deinterlace_method_weave_bff,
 124     GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
 125
 126 static void
 127 gst_deinterlace_method_weave_bff_class_init (GstDeinterlaceMethodWeaveBFFClass *
 128     klass)
 129 {
 130   GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
 131   GstDeinterlaceSimpleMethodClass *dism_class =
 132       (GstDeinterlaceSimpleMethodClass *) klass;
 133
 134   dim_class->fields_required = 3;
 135   dim_class->name = "Progressive: Bottom Field First";
 136   dim_class->nick = "weavebff";
 137   dim_class->latency = 0;
 138
 139   dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
 140   dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
 141   dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
 142   dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
 143   dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
 144   dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
 145   dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
 146   dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
 147   dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
 148   dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
 149   dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
 150   dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
 151   dism_class->interpolate_scanline_planar_y =
 152       deinterlace_scanline_weave_planar_y;
 153   dism_class->interpolate_scanline_planar_u =
 154       deinterlace_scanline_weave_planar_u;
 155   dism_class->interpolate_scanline_planar_v =
 156       deinterlace_scanline_weave_planar_v;
 157
 158   dism_class->copy_scanline_ayuv = copy_scanline_packed;
 159   dism_class->copy_scanline_yuy2 = copy_scanline_packed;
 160   dism_class->copy_scanline_yvyu = copy_scanline_packed;
 161   dism_class->copy_scanline_uyvy = copy_scanline_packed;
 162   dism_class->copy_scanline_nv12 = copy_scanline_packed;
 163   dism_class->copy_scanline_nv21 = copy_scanline_packed;
 164   dism_class->copy_scanline_argb = copy_scanline_packed;
 165   dism_class->copy_scanline_abgr = copy_scanline_packed;
 166   dism_class->copy_scanline_rgba = copy_scanline_packed;
 167   dism_class->copy_scanline_bgra = copy_scanline_packed;
 168   dism_class->copy_scanline_rgb = copy_scanline_packed;
 169   dism_class->copy_scanline_bgr = copy_scanline_packed;
 170   dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
 171   dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
 172   dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
 173 }
 174
 175 static void
 176 gst_deinterlace_method_weave_bff_init (GstDeinterlaceMethodWeaveBFF * self)
 177 {
 178 }