adding hermes

Original commit message from CVS:
adding hermes

7 files changed, 1747 insertions, 0 deletions

diff --git a/ext/hermes/Makefile.am b/ext/hermes/Makefile.am
new file mode 100644
index 00000000..b7447e5e
--- /dev/null
+++ b/ext/hermes/Makefile.am
@@ -0,0 +1,17 @@
+plugindir = $(libdir)/gst
+
+plugin_LTLIBRARIES = libgstcolorspace.la
+
+if HAVE_CPU_I386
+ARCHSRCS = yuv2rgb_mmx16.s
+else
+ARCHSRCS =
+endif
+
+libcolorspace_la_SOURCES = gstcolorspace.c yuv2yuv.c yuv2rgb.c $(ARCHSRCS)
+libcolorspace_la_CFLAGS = $(GST_CFLAGS)
+if HAVE_LIBHERMES
+libcolorspace_la_LIBADD = $(HERMES_LIBS)
+endif
+
+noinst_HEADERS = gstcolorspace.h yuv2rgb.h
diff --git a/ext/hermes/gstcolorspace.c b/ext/hermes/gstcolorspace.c
new file mode 100644
index 00000000..eebe19b6
--- /dev/null
+++ b/ext/hermes/gstcolorspace.c
@@ -0,0 +1,501 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gst/gst.h>
+
+#include "gstcolorspace.h"
+#include "yuv2rgb.h"
+
+
+static GstElementDetails colorspace_details = {
+  "Colorspace converter",
+  "Filter/Effect",
+  "Converts video from one colorspace to another",
+  VERSION,
+  "Wim Taymans <wim.taymans@chello.be>",
+  "(C) 2001",
+};
+
+
+/* Stereo signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  ARG_SOURCE,
+  ARG_DEST,
+};
+
+GST_PADTEMPLATE_FACTORY (colorspace_src_template_factory,
+  "src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "colorspace_src",
+    "video/raw",
+     NULL
+  )
+)
+
+GST_PADTEMPLATE_FACTORY (colorspace_sink_template_factory,
+  "sink",
+  GST_PAD_SINK,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "colorspace_sink",
+    "video/raw",
+    NULL
+  )
+)
+
+static void		gst_colorspace_class_init		(GstColorspaceClass *klass);
+static void		gst_colorspace_init			(GstColorspace *space);
+
+static void		gst_colorspace_set_property			(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
+static void		gst_colorspace_get_property			(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+
+static void		gst_colorspace_chain			(GstPad *pad, GstBuffer *buf);
+
+// FIXME
+extern void gst_colorspace_yuy2_to_i420(unsigned char *src, unsigned char *dest, guint width, guint height);
+
+static GstElementClass *parent_class = NULL;
+//static guint gst_colorspace_signals[LAST_SIGNAL] = { 0 };
+
+static GstBufferPool* 
+colorspace_get_bufferpool (GstPad *pad)
+{
+  GstColorspace *space;
+
+  space = GST_COLORSPACE (gst_pad_get_parent (pad));
+
+  if (space->type == GST_COLORSPACE_NONE)
+    return gst_pad_get_bufferpool (space->srcpad);
+  else
+    return NULL;
+}
+
+static gboolean 
+colorspace_setup_converter (GstColorspace *space)
+{
+  gulong from_space, to_space;
+  GstCaps *from_caps, *to_caps;
+
+  from_caps = space->sinkcaps;
+  to_caps = space->srccaps;
+
+  g_return_val_if_fail (to_caps != NULL, FALSE);
+  g_return_val_if_fail (from_caps != NULL, FALSE);
+
+  from_space = gst_caps_get_fourcc_int (from_caps, "format");
+  to_space = gst_caps_get_fourcc_int (to_caps, "format");
+
+  g_warning ("set up converter for %08lx to %08lx\n", from_space, to_space);
+
+  switch (from_space) {
+    case GST_MAKE_FOURCC ('R','G','B',' '):
+      switch (to_space) {
+#ifdef HAVE_LIBHERMES
+        case GST_MAKE_FOURCC ('R','G','B',' '):
+        {
+	  space->source.r = gst_caps_get_int (from_caps, "red_mask");
+	  space->source.g = gst_caps_get_int (from_caps, "green_mask");
+	  space->source.b = gst_caps_get_int (from_caps, "blue_mask");
+	  space->source.a = 0;
+	  space->srcbpp = space->source.bits = gst_caps_get_int (from_caps, "bpp");
+	  space->source.indexed = 0;
+	  space->source.has_colorkey = 0;
+
+	  GST_INFO (0,"source red mask   %08x\n", space->source.r);
+	  GST_INFO (0, "source green mask %08x\n", space->source.g);
+	  GST_INFO (0, "source blue mask  %08x\n", space->source.b);
+	  GST_INFO (0, "source bpp        %08x\n", space->srcbpp);
+
+	  space->dest.r = gst_caps_get_int (to_caps, "red_mask");
+	  space->dest.g = gst_caps_get_int (to_caps, "green_mask");
+	  space->dest.b = gst_caps_get_int (to_caps, "blue_mask");
+	  space->dest.a = 0;
+	  space->destbpp = space->dest.bits = gst_caps_get_int (to_caps, "bpp");
+	  space->dest.indexed = 0;
+	  space->dest.has_colorkey = 0;
+
+	  GST_INFO (0, "dest red mask   %08x\n", space->dest.r);
+	  GST_INFO (0, "dest green mask %08x\n", space->dest.g);
+	  GST_INFO (0, "dest blue mask  %08x\n", space->dest.b);
+	  GST_INFO (0, "dest bpp        %08x\n", space->destbpp);
+
+	  if (!Hermes_ConverterRequest (space->h_handle, &space->source, &space->dest)) {
+	    g_warning ("could not get converter\n");
+	    return FALSE;
+	  }
+	  GST_INFO (0, "converter set up\n");
+          space->type = GST_COLORSPACE_HERMES;
+          break;
+	}
+#endif
+        case GST_MAKE_FOURCC ('Y','U','Y','2'):
+        case GST_MAKE_FOURCC ('I','4','2','0'):
+          g_error ("colorspace: RGB to YUV implement me");
+          break;
+      }
+      break;
+    case GST_MAKE_FOURCC ('Y','U','Y','2'):
+    case GST_MAKE_FOURCC ('I','4','2','0'):
+      switch (to_space) {
+        case GST_MAKE_FOURCC ('R','G','B',' '):
+          g_warning ("colorspace: YUV to RGB");
+
+	  space->destbpp = gst_caps_get_int (to_caps, "bpp");
+	  space->converter = gst_colorspace_yuv2rgb_get_converter (from_caps, to_caps);
+          space->type = GST_COLORSPACE_YUV_RGB;
+          break;
+        case GST_MAKE_FOURCC ('I','4','2','0'):
+          space->type = GST_COLORSPACE_YUY2_I420;
+	  space->destbpp = 12;
+          break;
+      }
+      break;
+  }
+  return TRUE;
+}
+
+static GstPadNegotiateReturn
+colorspace_negotiate_src (GstPad *pad, GstCaps **caps, gpointer *data)
+{
+  GstColorspace* space = GST_COLORSPACE (gst_object_get_parent (GST_OBJECT (pad)));
+  GstCaps *original;
+  gint src_width, src_height;
+
+  GST_DEBUG (GST_CAT_NEGOTIATION, "colorspace: src negotiate\n");
+
+  g_return_val_if_fail (space->sinkcaps != NULL, GST_PAD_NEGOTIATE_FAIL);
+
+  src_width = gst_caps_get_int (space->sinkcaps, "width");
+  src_height = gst_caps_get_int (space->sinkcaps, "height");
+
+  space->width = src_width;
+  space->height = src_height;
+
+  if (*caps==NULL)  {
+    *caps = gst_caps_new ("colorspace_caps",
+		    "video/raw",
+		    gst_props_new (
+			    "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+			    "width",  GST_PROPS_INT (src_width),
+			    "height",  GST_PROPS_INT (src_height),
+			    NULL));
+    space->srccaps = gst_caps_ref (*caps);
+    return GST_PAD_NEGOTIATE_TRY;
+    //return gst_pad_negotiate_proxy (pad, space->sinkpad, caps);
+  }
+
+
+  original = gst_caps_copy (*caps);
+  //g_print ("%d %d\n", src_width, src_height);
+
+  // peers couldn't agree, we need to help
+  switch (gst_caps_get_fourcc_int (original, "format")) {
+    case GST_MAKE_FOURCC ('R','G','B',' '):
+      gst_caps_ref (*caps);
+      if (gst_caps_get_int (*caps, "width") == src_width &&
+          gst_caps_get_int (*caps, "height") == src_height) 
+      {
+        space->srccaps = *caps;
+        if (colorspace_setup_converter (space)) {
+          return GST_PAD_NEGOTIATE_AGREE;
+	}
+      }
+      else {
+        gst_caps_set (*caps, "width", GST_PROPS_INT (src_width));
+        gst_caps_set (*caps, "height", GST_PROPS_INT (src_height));
+
+        space->srccaps = *caps;
+	// FIXME
+	GST_PAD_CAPS (space->srcpad) = gst_caps_ref (*caps);
+
+        return GST_PAD_NEGOTIATE_TRY;
+      }
+      break;
+    case GST_MAKE_FOURCC ('Y','U','Y','2'):
+    case GST_MAKE_FOURCC ('I','4','2','0'):
+      //space->srccaps = original;
+      //fprintf (stderr, "found something suitable\n");
+      return GST_PAD_NEGOTIATE_AGREE;
+    default:
+      *caps = NULL;
+      return GST_PAD_NEGOTIATE_TRY;
+      break;
+  }
+  return GST_PAD_NEGOTIATE_FAIL;
+}
+
+static GstPadNegotiateReturn
+colorspace_negotiate_sink (GstPad *pad, GstCaps **caps, gpointer *data)
+{
+  GstColorspace* space = GST_COLORSPACE (gst_object_get_parent (GST_OBJECT (pad)));
+  GstCaps *original;
+
+  GST_DEBUG (GST_CAT_NEGOTIATION, "colorspace: sink negotiate\n");
+  
+  if (*caps==NULL) 
+    return gst_pad_negotiate_proxy (pad, space->srcpad, caps);
+    //return GST_PAD_NEGOTIATE_FAIL;
+
+
+  space->type = GST_COLORSPACE_NONE;
+
+  original = gst_caps_copy (*caps);
+
+  // see if a common format exists between both peers...
+  switch (gst_pad_negotiate_proxy (pad, space->srcpad, caps)) {
+    case GST_PAD_NEGOTIATE_AGREE:
+      //g_print ("colorspace: common format found\n");
+      return GST_PAD_NEGOTIATE_AGREE;
+    default:
+      break;
+  }
+  g_warning ("colorspace: no common format found\n");
+  g_warning ("colorspace: src: %08lx\n", gst_caps_get_fourcc_int (original, "format"));
+
+  // peers couldn't agree, we need to help
+  space->sinkcaps = original;
+
+  /*
+  space->width = gst_caps_get_int (original, "width");
+  space->height = gst_caps_get_int (original, "height");
+
+  space->srccaps = gst_caps_new (
+		  "testcaps",
+		  "video/raw",
+		  gst_props_new (
+		    "format",   GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+		     "width",   GST_PROPS_INT (gst_caps_get_int (original, "width")),
+		     "height",  GST_PROPS_INT (gst_caps_get_int (original, "height")),
+		     NULL
+		     ));
+
+  GST_PAD_CAPS (space->srcpad) = space->srccaps;
+  */
+
+  if (gst_pad_renegotiate (space->srcpad)) {
+    g_warning ("found something suitable\n");
+    if (colorspace_setup_converter (space)) {
+      return GST_PAD_NEGOTIATE_AGREE;
+    }
+  }
+
+  return GST_PAD_NEGOTIATE_FAIL;
+}		
+
+GType
+gst_colorspace_get_type (void)
+{
+  static GType colorspace_type = 0;
+
+  if (!colorspace_type) {
+    static const GTypeInfo colorspace_info = {
+      sizeof(GstColorspaceClass),      NULL,
+      NULL,
+      (GClassInitFunc)gst_colorspace_class_init,
+      NULL,
+      NULL,
+      sizeof(GstColorspace),
+      0,
+      (GInstanceInitFunc)gst_colorspace_init,
+    };
+    colorspace_type = g_type_register_static(GST_TYPE_ELEMENT, "GstColorspace", &colorspace_info, 0);
+  }
+  return colorspace_type;
+}
+
+static void
+gst_colorspace_class_init (GstColorspaceClass *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*)klass;
+  gstelement_class = (GstElementClass*)klass;
+
+  parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+  gobject_class->set_property = gst_colorspace_set_property;
+  gobject_class->get_property = gst_colorspace_get_property;
+}
+
+static void
+gst_colorspace_init (GstColorspace *space)
+{
+  space->sinkpad = gst_pad_new_from_template (
+		  GST_PADTEMPLATE_GET (colorspace_sink_template_factory), "sink");
+  gst_pad_set_negotiate_function (space->sinkpad, colorspace_negotiate_sink);
+  gst_pad_set_bufferpool_function (space->sinkpad, colorspace_get_bufferpool);
+  gst_pad_set_chain_function(space->sinkpad,gst_colorspace_chain);
+  gst_element_add_pad(GST_ELEMENT(space),space->sinkpad);
+
+  space->srcpad = gst_pad_new_from_template (
+		  GST_PADTEMPLATE_GET (colorspace_src_template_factory), "src");
+  gst_pad_set_negotiate_function (space->srcpad, colorspace_negotiate_src);
+  gst_element_add_pad(GST_ELEMENT(space),space->srcpad);
+
+#ifdef HAVE_LIBHERMES
+  space->h_handle = Hermes_ConverterInstance (0);
+#endif
+  space->pool = NULL;
+  space->converter = NULL;
+}
+
+static void
+gst_colorspace_chain (GstPad *pad,GstBuffer *buf)
+{
+  GstColorspace *space;
+  gint size;
+  GstBuffer *outbuf = NULL;
+
+  g_return_if_fail (pad != NULL);
+  g_return_if_fail (GST_IS_PAD (pad));
+  g_return_if_fail (buf != NULL);
+
+  space = GST_COLORSPACE (gst_pad_get_parent (pad));
+  
+  g_return_if_fail (space != NULL);
+  g_return_if_fail (GST_IS_COLORSPACE (space));
+
+  if (space->type == GST_COLORSPACE_NONE) {
+    outbuf = buf;
+  }
+  else {
+    gint dest_bytes, src_bytes;
+
+    if (!space->pool) {
+      space->pool = gst_pad_get_bufferpool (space->srcpad);
+    }
+
+    size = space->width * space->height;
+    dest_bytes = ((space->destbpp+7)/8);
+    src_bytes = ((space->srcbpp+7)/8);
+
+    if (space->pool) {
+      outbuf = gst_buffer_new_from_pool (space->pool, 0, 0);
+    }
+
+    if (!outbuf) {
+      outbuf = gst_buffer_new ();
+
+      GST_BUFFER_SIZE (outbuf) = (size * space->destbpp)/8;
+      GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
+    }
+
+    if (space->type == GST_COLORSPACE_YUV_RGB) {
+      gst_colorspace_convert (space->converter, GST_BUFFER_DATA (buf), GST_BUFFER_DATA (outbuf));
+    }
+#ifdef HAVE_LIBHERMES
+    else if (space->type == GST_COLORSPACE_HERMES) {
+      Hermes_ConverterCopy (space->h_handle, 
+		    GST_BUFFER_DATA (buf), 0, 0, space->width, space->height, space->width * src_bytes, 
+	  	    GST_BUFFER_DATA (outbuf), 0, 0, space->width, space->height, space->width * dest_bytes);
+    }
+#endif
+    else if (space->type == GST_COLORSPACE_YUY2_I420) {
+      gst_colorspace_yuy2_to_i420 (GST_BUFFER_DATA (buf),
+		                   GST_BUFFER_DATA (outbuf),
+				   space->width,
+				   space->height);
+    }
+
+    GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
+
+    gst_buffer_unref (buf);
+  }
+  gst_pad_push (space->srcpad, outbuf);
+}
+
+static void
+gst_colorspace_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+  GstColorspace *space;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_COLORSPACE(object));
+  space = GST_COLORSPACE(object);
+
+  switch (prop_id) {
+    default:
+      break;
+  }
+}
+
+static void
+gst_colorspace_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstColorspace *space;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_COLORSPACE(object));
+  space = GST_COLORSPACE(object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+#ifdef HAVE_LIBHERMES
+  gint hermes_res;
+
+  hermes_res = Hermes_Init();
+  g_return_val_if_fail (hermes_res != 0, FALSE);
+#endif
+
+  factory = gst_elementfactory_new ("colorspace", GST_TYPE_COLORSPACE,
+                                    &colorspace_details);
+  g_return_val_if_fail (factory != NULL, FALSE);
+  
+  gst_elementfactory_add_padtemplate (factory, 
+		  GST_PADTEMPLATE_GET (colorspace_src_template_factory));
+  gst_elementfactory_add_padtemplate (factory, 
+		  GST_PADTEMPLATE_GET (colorspace_sink_template_factory));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "colorspace",
+  plugin_init
+};
+
+
+
+
+
+
+
+
diff --git a/ext/hermes/gstcolorspace.h b/ext/hermes/gstcolorspace.h
new file mode 100644
index 00000000..8d780b41
--- /dev/null
+++ b/ext/hermes/gstcolorspace.h
@@ -0,0 +1,95 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_COLORSPACE_H__
+#define __GST_COLORSPACE_H__
+
+
+#include <config.h>
+#include <gst/gst.h>
+#include "yuv2rgb.h"
+
+#ifdef HAVE_LIBHERMES
+#  include <Hermes/Hermes.h>
+#endif
+
+// #include <gst/meta/audioraw.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#define GST_TYPE_COLORSPACE \
+  (gst_colorspace_get_type())
+#define GST_COLORSPACE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLORSPACE,GstColorspace))
+#define GST_COLORSPACE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstColorspace))
+#define GST_IS_COLORSPACE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLORSPACE))
+#define GST_IS_COLORSPACE_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLORSPACE))
+
+typedef struct _GstColorspace GstColorspace;
+typedef struct _GstColorspaceClass GstColorspaceClass;
+
+typedef enum {
+  GST_COLORSPACE_NONE,
+  GST_COLORSPACE_HERMES,
+  GST_COLORSPACE_YUV_RGB,
+  GST_COLORSPACE_YUY2_I420,
+} GstColorSpaceConverterType;
+
+struct _GstColorspace {
+  GstElement element;
+
+  GstPad *sinkpad,*srcpad;
+
+#ifdef HAVE_LIBHERMES
+  HermesHandle h_handle;
+  HermesFormat source, dest;
+#endif
+
+  GstColorSpaceConverter *converter;
+
+  GstColorSpaceConverterType type;
+  gint width, height;
+  gint srcbpp, destbpp;
+
+  GstCaps *srccaps;
+  GstCaps *sinkcaps;
+
+  GstBufferPool *pool;
+};
+
+struct _GstColorspaceClass {
+  GstElementClass parent_class;
+};
+
+GType gst_colorspace_get_type(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __GST_COLORSPACE_H */
diff --git a/ext/hermes/yuv2rgb.c b/ext/hermes/yuv2rgb.c
new file mode 100644
index 00000000..0b5a9b4c
--- /dev/null
+++ b/ext/hermes/yuv2rgb.c
@@ -0,0 +1,823 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "yuv2rgb.h"
+
+//#undef HAVE_LIBMMX
+
+#ifdef HAVE_LIBMMX
+#include "mmx.h"
+#endif
+
+#define CB_BASE 1
+#define CR_BASE (CB_BASE*CB_RANGE)
+#define LUM_BASE (CR_BASE*CR_RANGE)
+
+#define Min(x,y) (((x) < (y)) ? (x) : (y))
+#define Max(x,y) (((x) > (y)) ? (x) : (y))
+
+#define GAMMA_CORRECTION(x) ((int)(pow((x) / 255.0, 1.0 / gammaCorrect) * 255.0))
+#define CHROMA_CORRECTION256(x) ((x) >= 128 \
+	                        ? 128 + Min(127, (int)(((x) - 128.0) * chromaCorrect)) \
+	                        : 128 - Min(128, (int)((128.0 - (x)) * chromaCorrect)))
+#define CHROMA_CORRECTION128(x) ((x) >= 0 \
+	                        ? Min(127,  (int)(((x) * chromaCorrect))) \
+	                        : Max(-128, (int)(((x) * chromaCorrect))))
+#define CHROMA_CORRECTION256D(x) ((x) >= 128 \
+	                        ? 128.0 + Min(127.0, (((x) - 128.0) * chromaCorrect)) \
+	                        : 128.0 - Min(128.0, (((128.0 - (x)) * chromaCorrect))))
+#define CHROMA_CORRECTION128D(x) ((x) >= 0 \
+	                        ? Min(127.0,  ((x) * chromaCorrect)) \
+	                        : Max(-128.0, ((x) * chromaCorrect)))
+
+
+static void gst_colorspace_yuv420P_to_rgb16	(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
+static void gst_colorspace_yuv420P_to_rgb24	(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
+static void gst_colorspace_yuv420P_to_rgb32	(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
+
+#ifdef HAVE_LIBMMX
+static void gst_colorspace_yuv420P_to_bgr16_mmx	(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
+static void gst_colorspace_yuv420P_to_bgr32_mmx	(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest);
+#endif
+
+static void gst_colorspace_yuv_to_rgb16(GstColorSpaceYUVTables *tables,
+	    				unsigned char *lum,
+	      				unsigned char *cr,
+	        			unsigned char *cb,
+		  			unsigned char *out,
+		    			int cols, int rows);
+static void gst_colorspace_yuv_to_rgb24(GstColorSpaceYUVTables *tables,
+	    				unsigned char *lum,
+	      				unsigned char *cr,
+	        			unsigned char *cb,
+		  			unsigned char *out,
+		    			int cols, int rows);
+static void gst_colorspace_yuv_to_rgb32(GstColorSpaceYUVTables *tables,
+	    				unsigned char *lum,
+	      				unsigned char *cr,
+	        			unsigned char *cb,
+		  			unsigned char *out,
+		    			int cols, int rows);
+#ifdef HAVE_LIBMMX
+static void gst_colorspace_yuv_to_bgr32_mmx(GstColorSpaceYUVTables *tables,
+	    				unsigned char *lum,
+	      				unsigned char *cr,
+	        			unsigned char *cb,
+		  			unsigned char *out,
+		    			int cols, int rows);
+extern void gst_colorspace_yuv_to_bgr16_mmx(GstColorSpaceYUVTables *tables,
+	    				unsigned char *lum,
+	      				unsigned char *cr,
+	        			unsigned char *cb,
+		  			unsigned char *out,
+		    			int cols, int rows);
+#endif
+
+static GstColorSpaceYUVTables * gst_colorspace_init_yuv(long depth, 
+						long red_mask, long green_mask, long blue_mask);
+
+GstColorSpaceConverter* 
+gst_colorspace_yuv2rgb_get_converter (GstCaps *from, GstCaps *to) 
+{
+  gulong from_space, to_space;
+  GstColorSpaceConverter *new;
+  gint to_bpp;
+  
+  GST_DEBUG (0,"gst_colorspace_yuv2rgb_get_converter\n");
+
+  new = g_malloc (sizeof (GstColorSpaceConverter));
+
+  new->width = gst_caps_get_int (from, "width");
+  new->height = gst_caps_get_int (from, "height");
+  new->color_tables = NULL;
+
+  from_space = gst_caps_get_fourcc_int (from, "format");
+  to_space = gst_caps_get_fourcc_int (to, "format");
+  to_bpp = gst_caps_get_int (to, "bpp");
+
+  // FIXME we leak new here.
+  g_return_val_if_fail (to_space == GST_STR_FOURCC ("RGB "), NULL);
+
+  switch(from_space) {
+    case GST_MAKE_FOURCC ('I','4','2','0'):
+    {
+      gulong red_mask;
+      gulong green_mask;
+      gulong blue_mask;
+
+      red_mask   = gst_caps_get_int (to, "red_mask");
+      green_mask = gst_caps_get_int (to, "green_mask");
+      blue_mask  = gst_caps_get_int (to, "blue_mask");
+
+      GST_INFO (GST_CAT_PLUGIN_INFO, "red_mask    %08lx", red_mask);
+      GST_INFO (GST_CAT_PLUGIN_INFO, "green_mask  %08lx", green_mask);
+      GST_INFO (GST_CAT_PLUGIN_INFO, "blue_mask   %08lx", blue_mask);
+
+      new->insize 	   = new->width * new->height + new->width * new->height/2;
+      new->color_tables    = gst_colorspace_init_yuv (to_bpp, red_mask, green_mask, blue_mask);
+      new->outsize 	   = new->width * new->height * (to_bpp/8);
+
+      switch(to_bpp) {
+        case 32:
+#ifdef HAVE_LIBMMX
+	  if (red_mask == 0xff0000 && green_mask == 0x00ff00 && red_mask == 0x0000ff &&
+			  (gst_cpu_get_flags () & GST_CPU_FLAG_MMX) ) {
+            new->convert =  gst_colorspace_yuv420P_to_bgr32_mmx;
+	  }
+	  else
+#endif
+            new->convert =  gst_colorspace_yuv420P_to_rgb32;
+	  break;
+        case 24:
+          new->convert =  gst_colorspace_yuv420P_to_rgb24;
+	  break;
+        case 15:
+        case 16:
+#ifdef HAVE_LIBMMX
+	  if (red_mask == 0xf800 && green_mask == 0x07e0 && blue_mask == 0x001f &&
+			  (gst_cpu_get_flags () & GST_CPU_FLAG_MMX) ) {
+            new->convert =  gst_colorspace_yuv420P_to_bgr16_mmx;
+	  }
+	  else
+#endif
+            new->convert =  gst_colorspace_yuv420P_to_rgb16;
+	  break;
+	default:
+          g_print("gst_colorspace_yuv2rgb not implemented\n");
+	  g_free (new);
+	  new = NULL;
+      }
+      break;
+    }
+    default:
+      g_print("gst_colorspace_yuv2rgb not implemented\n");
+      g_free (new);
+      new = NULL;
+  }
+  return new;
+}
+
+static void gst_colorspace_yuv420P_to_rgb32(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) 
+{
+  int size;
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb32\n");
+
+  size = space->width * space->height;
+
+  gst_colorspace_yuv_to_rgb32(space->color_tables,
+			src,                                  	// Y component
+                        src+size,     				// cr component
+			src+size+(size>>2),		   	// cb component
+                        dest,
+			space->height,
+			space->width);
+
+}
+
+static void gst_colorspace_yuv420P_to_rgb24(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
+  int size;
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb24\n");
+
+  size = space->width * space->height;
+
+  gst_colorspace_yuv_to_rgb24(space->color_tables,
+			src,                                  	// Y component
+                        src+size,     				// cr component
+			src+size+(size>>2),		   	// cb component
+                        dest,
+			space->height,
+			space->width);
+
+}
+
+static void gst_colorspace_yuv420P_to_rgb16(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
+  int size;
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb16\n");
+
+  size = space->width * space->height;
+
+  gst_colorspace_yuv_to_rgb16(space->color_tables,
+			src,                                  	// Y component
+                        src+size,     				// cr component
+			src+size+(size>>2),		   	// cb component
+                        dest,
+			space->height,
+			space->width);
+
+}
+
+#ifdef HAVE_LIBMMX
+static void gst_colorspace_yuv420P_to_bgr32_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
+  int size;
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_rgb32_mmx\n");
+
+  size = space->width * space->height;
+
+  gst_colorspace_yuv_to_bgr32_mmx(NULL,
+			src,                                  	// Y component
+                        src+size,     				// cr component
+			src+size+(size>>2),		   	// cb component
+                        dest,
+			space->height,
+			space->width);
+
+}
+static void gst_colorspace_yuv420P_to_bgr16_mmx(GstColorSpaceConverter *space, unsigned char *src, unsigned char *dest) {
+  int size;
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr16_mmx \n");
+
+  size = space->width * space->height;
+
+  gst_colorspace_yuv_to_bgr16_mmx(NULL,
+			src,                                  	// Y component
+                        src+size,     				// cr component
+			src+size+(size>>2),		   	// cb component
+                        dest,
+			space->height,
+			space->width);
+  GST_DEBUG (0,"gst_colorspace_yuv420P_to_bgr16_mmx done\n");
+
+}
+#endif
+
+/*
+ * How many 1 bits are there in the longword.
+ * Low performance, do not call often.
+ */
+
+static int
+number_of_bits_set(a)
+unsigned long a;
+{
+    if(!a) return 0;
+    if(a & 1) return 1 + number_of_bits_set(a >> 1);
+    return(number_of_bits_set(a >> 1));
+}
+
+/*
+ * Shift the 0s in the least significant end out of the longword.
+ * Low performance, do not call often.
+ */
+static unsigned long
+shifted_down(a)
+unsigned long a;
+{
+    if(!a) return 0;
+    if(a & 1) return a;
+    return a >> 1;
+}
+
+/*
+ * How many 0 bits are there at most significant end of longword.
+ * Low performance, do not call often.
+ */
+static int
+free_bits_at_top(a)
+unsigned long a;
+{
+      /* assume char is 8 bits */
+    if(!a) return sizeof(unsigned long) * 8;
+        /* assume twos complement */
+    if(((long)a) < 0l) return 0;
+    return 1 + free_bits_at_top ( a << 1);
+}
+
+/*
+ * How many 0 bits are there at least significant end of longword.
+ * Low performance, do not call often.
+ */
+static int
+free_bits_at_bottom(a)
+unsigned long a;
+{
+      /* assume char is 8 bits */
+    if(!a) return sizeof(unsigned long) * 8;
+    if(((long)a) & 1l) return 0;
+    return 1 + free_bits_at_bottom ( a >> 1);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * InitColor16Dither --
+ *
+ *	To get rid of the multiply and other conversions in color
+ *	dither, we use a lookup table.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The lookup tables are initialized.
+ *
+ *--------------------------------------------------------------
+ */
+
+static GstColorSpaceYUVTables *
+gst_colorspace_init_yuv(long depth, long red_mask, long green_mask, long blue_mask)
+{
+    int CR, CB, i;
+    int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
+    long *r_2_pix_alloc;
+    long *g_2_pix_alloc;
+    long *b_2_pix_alloc;
+    GstColorSpaceYUVTables *tables = g_malloc(sizeof(GstColorSpaceYUVTables));
+
+    L_tab    = tables->L_tab = (int *)malloc(256*sizeof(int)); 
+    Cr_r_tab = tables->Cr_r_tab = (int *)malloc(256*sizeof(int));
+    Cr_g_tab = tables->Cr_g_tab = (int *)malloc(256*sizeof(int));
+    Cb_g_tab = tables->Cb_g_tab = (int *)malloc(256*sizeof(int));
+    Cb_b_tab = tables->Cb_b_tab = (int *)malloc(256*sizeof(int));
+
+    r_2_pix_alloc = (long *)malloc(768*sizeof(long));
+    g_2_pix_alloc = (long *)malloc(768*sizeof(long));
+    b_2_pix_alloc = (long *)malloc(768*sizeof(long));
+
+    if (L_tab == NULL ||
+	Cr_r_tab == NULL ||
+	Cr_g_tab == NULL ||
+	Cb_g_tab == NULL ||
+	Cb_b_tab == NULL ||
+	r_2_pix_alloc == NULL ||
+	g_2_pix_alloc == NULL ||
+	b_2_pix_alloc == NULL) {
+      fprintf(stderr, "Could not get enough memory in InitColorDither\n");
+      exit(1);
+    }
+
+    for (i=0; i<256; i++) {
+      L_tab[i] = i;
+      /*
+      if (gammaCorrectFlag) {
+	L_tab[i] = GAMMA_CORRECTION(i);
+      }
+      */
+      
+      CB = CR = i;
+      /*
+      if (chromaCorrectFlag) {
+	CB -= 128; 
+	CB = CHROMA_CORRECTION128(CB);
+	CR -= 128;
+	CR = CHROMA_CORRECTION128(CR);
+      } 
+      else 
+      */
+      {
+	CB -= 128; CR -= 128;
+      }
+      Cr_r_tab[i] =  (0.419/0.299) * CR;
+      Cr_g_tab[i] = -(0.299/0.419) * CR;
+      Cb_g_tab[i] = -(0.114/0.331) * CB; 
+      Cb_b_tab[i] =  (0.587/0.331) * CB;
+
+    }
+
+    /* 
+     * Set up entries 0-255 in rgb-to-pixel value tables.
+     */
+    for (i = 0; i < 256; i++) {
+      r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(red_mask));
+      r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(red_mask);
+      g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(green_mask));
+      g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(green_mask);
+      b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(blue_mask));
+      b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(blue_mask);
+      /*
+       * If we have 16-bit output depth, then we double the value
+       * in the top word. This means that we can write out both
+       * pixels in the pixel doubling mode with one op. It is 
+       * harmless in the normal case as storing a 32-bit value
+       * through a short pointer will lose the top bits anyway.
+       * A similar optimisation for Alpha for 64 bit has been
+       * prepared for, but is not yet implemented.
+       */
+      if(!(depth == 32) && !(depth == 24)) {
+
+	r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 16;
+	g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 16;
+	b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 16;
+
+      }
+#ifdef SIXTYFOUR_BIT
+      if(depth == 32) {
+
+	r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 32;
+	g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 32;
+	b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 32;
+
+      }
+#endif
+    }
+
+    /*
+     * Spread out the values we have to the rest of the array so that
+     * we do not need to check for overflow.
+     */
+    for (i = 0; i < 256; i++) {
+      r_2_pix_alloc[i] = r_2_pix_alloc[256];
+      r_2_pix_alloc[i+ 512] = r_2_pix_alloc[511];
+      g_2_pix_alloc[i] = g_2_pix_alloc[256];
+      g_2_pix_alloc[i+ 512] = g_2_pix_alloc[511];
+      b_2_pix_alloc[i] = b_2_pix_alloc[256];
+      b_2_pix_alloc[i+ 512] = b_2_pix_alloc[511];
+    }
+
+    tables->r_2_pix = r_2_pix_alloc + 256;
+    tables->g_2_pix = g_2_pix_alloc + 256;
+    tables->b_2_pix = b_2_pix_alloc + 256;
+
+    return tables;
+
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * Color16DitherImage --
+ *
+ *	Converts image into 16 bit color.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+gst_colorspace_yuv_to_rgb16(tables, lum, cb, cr, out, rows, cols)
+  GstColorSpaceYUVTables *tables;
+  unsigned char *lum;
+  unsigned char *cr;
+  unsigned char *cb;
+  unsigned char *out;
+  int cols, rows;
+
+{
+    int L, CR, CB;
+    unsigned short *row1, *row2;
+    unsigned char *lum2;
+    int x, y;
+    int cr_r;
+    int crb_g;
+    int cb_b;
+    int cols_2 = cols>>1;
+
+    row1 = (unsigned short *)out;
+    row2 = row1 + cols;
+    lum2 = lum + cols;
+
+    for (y=rows>>1; y; y--) {
+	for (x=cols_2; x; x--) {
+
+	    CR = *cr++;
+	    CB = *cb++;
+	    cr_r = tables->Cr_r_tab[CR];
+	    crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
+	    cb_b = tables->Cb_b_tab[CB];
+
+            L = tables->L_tab[(int) *lum++];
+
+	    *row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+            L = tables->L_tab[(int) *lum++];
+
+	    *row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+	    /*
+	     * Now, do second row.
+	     */
+	    L = tables->L_tab[(int) *lum2++];
+
+	    *row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+	    L = tables->L_tab[(int) *lum2++];
+
+	    *row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	}
+        /*
+         * These values are at the start of the next line, (due
+         * to the ++'s above),but they need to be at the start
+         * of the line after that.
+         */
+	lum = lum2;
+	row1 = row2;
+	lum2 += cols;
+	row2 += cols;
+    }
+}
+
+static void
+gst_colorspace_yuv_to_rgb24(tables, lum, cb, cr, out, rows, cols)
+  GstColorSpaceYUVTables *tables;
+  unsigned char *lum;
+  unsigned char *cr;
+  unsigned char *cb;
+  unsigned char *out;
+  int cols, rows;
+
+{
+    int L, CR, CB;
+    unsigned char *row1, *row2;
+    unsigned char *lum2;
+    int x, y;
+    int cr_r;
+    int crb_g;
+    int cb_b;
+    int cols_2 = cols>>1;
+    int cols_3 = cols*3;
+    unsigned char pixels[4];
+
+    row1 = out;
+    row2 = row1 + cols_3;
+    lum2 = lum + cols;
+    for (y=rows>>1; y; y--) {
+	for (x=cols_2; x; x--) {
+
+	    CR = *cr++;
+	    CB = *cb++;
+	    cr_r = tables->Cr_r_tab[CR];
+	    crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
+	    cb_b = tables->Cb_b_tab[CB];
+
+            L = tables->L_tab[(int) *lum++];
+
+	    ((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	    *row1++ = pixels[0]; *row1++ = pixels[1]; *row1++ = pixels[2];
+
+            L = tables->L_tab[(int) *lum++];
+
+	    ((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	    *row1++ = pixels[0]; *row1++ = pixels[1]; *row1++ = pixels[2];
+
+	    /*
+	     * Now, do second row.
+	     */
+
+	    L = tables->L_tab [(int) *lum2++];
+
+	    ((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	    *row2++ = pixels[0]; *row2++ = pixels[1]; *row2++ = pixels[2];
+
+	    L = tables->L_tab [(int) *lum2++];
+
+	    ((int *)pixels)[0] = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	    *row2++ = pixels[0]; *row2++ = pixels[1]; *row2++ = pixels[2];
+	}
+	lum = lum2;
+	row1 = row2;
+	lum2 += cols;
+	row2 += cols_3;
+    }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * Color32DitherImage --
+ *
+ *	Converts image into 32 bit color (or 24-bit non-packed).
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *--------------------------------------------------------------
+ */
+
+/*
+ * This is a copysoft version of the function above with ints instead
+ * of shorts to cause a 4-byte pixel size
+ */
+
+static void
+gst_colorspace_yuv_to_rgb32(tables, lum, cb, cr, out, rows, cols)
+  GstColorSpaceYUVTables *tables;
+  unsigned char *lum;
+  unsigned char *cr;
+  unsigned char *cb;
+  unsigned char *out;
+  int cols, rows;
+
+{
+    int L, CR, CB;
+    unsigned int *row1, *row2;
+    unsigned char *lum2;
+    int x, y;
+    int cr_r;
+    int crb_g;
+    int cb_b;
+    int cols_2 = cols>>1;
+
+    row1 = (guint32  *)out;
+    row2 = row1 + cols;
+    lum2 = lum + cols;
+    for (y=rows>>1; y; y--) {
+	for (x=cols_2; x; x--) {
+
+	    CR = *cr++;
+	    CB = *cb++;
+	    cr_r = tables->Cr_r_tab[CR];
+	    crb_g = tables->Cr_g_tab[CR] + tables->Cb_g_tab[CB];
+	    cb_b = tables->Cb_b_tab[CB];
+
+            L = tables->L_tab[(int) *lum++];
+
+	    *row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+            L = tables->L_tab[(int) *lum++];
+
+	    *row1++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+	    /*
+	     * Now, do second row.
+	     */
+
+	    L = tables->L_tab [(int) *lum2++];
+
+	    *row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+
+	    L = tables->L_tab [(int) *lum2++];
+
+	    *row2++ = (tables->r_2_pix[L+cr_r] | tables->g_2_pix[L+crb_g] | tables->b_2_pix[L+cb_b]);
+	}
+	lum = lum2;
+	row1 = row2;
+	lum2 += cols;
+	row2 += cols;
+    }
+}
+
+#ifdef HAVE_LIBMMX
+static mmx_t MMX_80w           = (mmx_t)(long long)0x0080008000800080LL;                     //dd    00080 0080h, 000800080h
+
+static mmx_t MMX_00FFw         = (mmx_t)(long long)0x00ff00ff00ff00ffLL;                     //dd    000FF 00FFh, 000FF00FFh
+static mmx_t MMX_FF00w         = (mmx_t)(long long)0xff00ff00ff00ff00LL;                     //dd    000FF 00FFh, 000FF00FFh
+
+static mmx_t MMX32_Vredcoeff     = (mmx_t)(long long)0x0059005900590059LL;  
+static mmx_t MMX32_Ubluecoeff    = (mmx_t)(long long)0x0072007200720072LL;    
+static mmx_t MMX32_Ugrncoeff     = (mmx_t)(long long)0xffeaffeaffeaffeaLL; 
+static mmx_t MMX32_Vgrncoeff     = (mmx_t)(long long)0xffd2ffd2ffd2ffd2LL;  
+
+static void
+gst_colorspace_yuv_to_bgr32_mmx(tables, lum, cr, cb, out, rows, cols)
+  GstColorSpaceYUVTables *tables;
+  unsigned char *lum;
+  unsigned char *cr;
+  unsigned char *cb;
+  unsigned char *out;
+  int cols, rows;
+
+{
+    guint32 *row1 = (guint32 *)out;         // 32 bit target
+    int cols4 = cols>>2;
+
+    int y, x; 
+    
+    for (y=rows>>1; y; y--) {
+      for (x=cols4; x; x--) {
+
+        // create Cr (result in mm1)
+        movd_m2r(*(mmx_t *)cb, mm1);      	//         0  0  0  0  v3 v2 v1 v0
+        pxor_r2r(mm7, mm7);      		//         00 00 00 00 00 00 00 00
+        movd_m2r(*(mmx_t *)lum, mm2);           //          0  0  0  0 l3 l2 l1 l0
+        punpcklbw_r2r(mm7, mm1); 		//         0  v3 0  v2 00 v1 00 v0
+        punpckldq_r2r(mm1, mm1); 		//         00 v1 00 v0 00 v1 00 v0
+        psubw_m2r(MMX_80w, mm1);   		// mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 
+
+        // create Cr_g (result in mm0)
+        movq_r2r(mm1, mm0);           		// r1 r1 r0 r0 r1 r1 r0 r0
+        pmullw_m2r(MMX32_Vgrncoeff, mm0); 	// red*-46dec=0.7136*64
+        pmullw_m2r(MMX32_Vredcoeff, mm1); 	// red*89dec=1.4013*64
+        psraw_i2r(6, mm0);           		// red=red/64
+        psraw_i2r(6, mm1);           		// red=red/64
+		 
+        // create L1 L2 (result in mm2,mm4)
+        // L2=lum+cols
+        movq_m2r(*(mmx_t *)(lum+cols),mm3);     //    0  0  0  0 L3 L2 L1 L0
+        punpckldq_r2r(mm3, mm2);      		//   L3 L2 L1 L0 l3 l2 l1 l0
+        movq_r2r(mm2, mm4);           		//   L3 L2 L1 L0 l3 l2 l1 l0
+        pand_m2r(MMX_FF00w, mm2);      		//   L3 0  L1  0 l3  0 l1  0
+        pand_m2r(MMX_00FFw, mm4);      		//   0  L2  0 L0  0 l2  0 l0
+        psrlw_i2r(8, mm2);             		//   0  L3  0 L1  0 l3  0 l1
+
+        // create R (result in mm6)
+        movq_r2r(mm2, mm5);           		//   0 L3  0 L1  0 l3  0 l1
+        movq_r2r(mm4, mm6);           		//   0 L2  0 L0  0 l2  0 l0
+        paddsw_r2r(mm1, mm5);       		// lum1+red:x R3 x R1 x r3 x r1
+        paddsw_r2r(mm1, mm6);       		// lum1+red:x R2 x R0 x r2 x r0
+        packuswb_r2r(mm5, mm5);       		//  R3 R1 r3 r1 R3 R1 r3 r1
+        packuswb_r2r(mm6, mm6);       		//  R2 R0 r2 r0 R2 R0 r2 r0
+        pxor_r2r(mm7, mm7);      		//  00 00 00 00 00 00 00 00
+        punpcklbw_r2r(mm5, mm6);      		//  R3 R2 R1 R0 r3 r2 r1 r0
+
+        // create Cb (result in mm1)
+        movd_m2r(*(mmx_t *)cr, mm1);      	//         0  0  0  0  u3 u2 u1 u0
+        punpcklbw_r2r(mm7, mm1); 		//         0  u3 0  u2 00 u1 00 u0
+        punpckldq_r2r(mm1, mm1); 		//         00 u1 00 u0 00 u1 00 u0
+        psubw_m2r(MMX_80w, mm1);   		// mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 
+        // create Cb_g (result in mm5)
+        movq_r2r(mm1, mm5);            		// u1 u1 u0 u0 u1 u1 u0 u0
+        pmullw_m2r(MMX32_Ugrncoeff, mm5);  	// blue*-109dec=1.7129*64
+        pmullw_m2r(MMX32_Ubluecoeff, mm1); 	// blue*114dec=1.78125*64
+        psraw_i2r(6, mm5);            		// blue=red/64
+        psraw_i2r(6, mm1);            		// blue=blue/64
+
+        // create G (result in mm7)
+        movq_r2r(mm2, mm3);      		//   0  L3  0 L1  0 l3  0 l1
+        movq_r2r(mm4, mm7);      		//   0  L2  0 L0  0 l2  0 l1
+        paddsw_r2r(mm5, mm3);  			// lum1+Cb_g:x G3t x G1t x g3t x g1t
+        paddsw_r2r(mm5, mm7);  			// lum1+Cb_g:x G2t x G0t x g2t x g0t
+        paddsw_r2r(mm0, mm3);  			// lum1+Cr_g:x G3  x G1  x g3  x g1
+        paddsw_r2r(mm0, mm7);  			// lum1+blue:x G2  x G0  x g2  x g0
+        packuswb_r2r(mm3, mm3);  		// G3 G1 g3 g1 G3 G1 g3 g1
+        packuswb_r2r(mm7, mm7);  		// G2 G0 g2 g0 G2 G0 g2 g0
+        punpcklbw_r2r(mm3, mm7); 		// G3 G2 G1 G0 g3 g2 g1 g0
+
+        // create B (result in mm5)
+        movq_r2r(mm2, mm3);         		//   0  L3  0 L1  0 l3  0 l1
+        movq_r2r(mm4, mm5);         		//   0  L2  0 L0  0 l2  0 l1
+        paddsw_r2r(mm1, mm3);     		// lum1+blue:x B3 x B1 x b3 x b1
+        paddsw_r2r(mm1, mm5);     		// lum1+blue:x B2 x B0 x b2 x b0
+        packuswb_r2r(mm3, mm3);     		// B3 B1 b3 b1 B3 B1 b3 b1
+        packuswb_r2r(mm5, mm5);     		// B2 B0 b2 b0 B2 B0 b2 b0
+        punpcklbw_r2r(mm3, mm5);    		// B3 B2 B1 B0 b3 b2 b1 b0
+
+        // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb)
+
+        pxor_r2r(mm2, mm2);           		//  0  0  0  0  0  0  0  0
+        pxor_r2r(mm4, mm4);           		//  0  0  0  0  0  0  0  0
+        movq_r2r(mm6, mm1);           		// R3 R2 R1 R0 r3 r2 r1 r0
+        movq_r2r(mm5, mm3);           		// B3 B2 B1 B0 b3 b2 b1 b0
+        // process lower lum
+        punpcklbw_r2r(mm4, mm1);      		//  0 r3  0 r2  0 r1  0 r0
+        punpcklbw_r2r(mm4, mm3);      		//  0 b3  0 b2  0 b1  0 b0
+        movq_r2r(mm1, mm2);           		//  0 r3  0 r2  0 r1  0 r0
+        movq_r2r(mm3, mm0);           		//  0 b3  0 b2  0 b1  0 b0
+        punpcklwd_r2r(mm1, mm3);      		//  0 r1  0 b1  0 r0  0 b0
+        punpckhwd_r2r(mm2, mm0);      		//  0 r3  0 b3  0 r2  0 b2
+
+        pxor_r2r(mm2, mm2);           		//  0  0  0  0  0  0  0  0
+        movq_r2r(mm7, mm1);           		// G3 G2 G1 G0 g3 g2 g1 g0
+        punpcklbw_r2r(mm1, mm2);      		// g3  0 g2  0 g1  0 g0  0
+        punpcklwd_r2r(mm4, mm2);      		//  0  0 g1  0  0  0 g0  0 
+        por_r2r(mm3, mm2);      		//  0 r1 g1 b1  0 r0 g0 b0
+        movq_r2m(mm2, *(mmx_t *)row1);      	// wrote out ! row1
+
+        pxor_r2r(mm2, mm2);           		//  0  0  0  0  0  0  0  0
+        punpcklbw_r2r(mm1, mm4);      		// g3  0 g2  0 g1  0 g0  0
+        punpckhwd_r2r(mm2, mm4);      		//  0  0 g3  0  0  0 g2  0 
+        por_r2r(mm0, mm4);      		//  0 r3 g3 b3  0 r2 g2 b2
+        movq_r2m(mm4, *(mmx_t *)(row1+2)); 	// wrote out ! row1
+		 
+        // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb)
+        // this can be done "destructive"
+        pxor_r2r(mm2, mm2);           		//  0  0  0  0  0  0  0  0
+        punpckhbw_r2r(mm2, mm6);      		//  0 R3  0 R2  0 R1  0 R0
+        punpckhbw_r2r(mm1, mm5);      		// G3 B3 G2 B2 G1 B1 G0 B0
+        movq_r2r(mm5, mm1);           		// G3 B3 G2 B2 G1 B1 G0 B0
+        punpcklwd_r2r(mm6, mm1);      		//  0 R1 G1 B1  0 R0 G0 B0
+        movq_r2m(mm1, *(mmx_t *)(row1+cols));	// wrote out ! row2
+        punpckhwd_r2r(mm6, mm5);      		//  0 R3 G3 B3  0 R2 G2 B2
+        movq_r2m(mm5, *(mmx_t *)(row1+cols+2)); // wrote out ! row2
+		 
+        lum+=4;
+        cr+=2;
+        cb+=2;
+        row1 +=4;
+      }
+      lum += cols;
+      row1 += cols;
+    }
+
+    emms();
+
+}
+#endif
+
diff --git a/ext/hermes/yuv2rgb.h b/ext/hermes/yuv2rgb.h
new file mode 100644
index 00000000..c77fd702
--- /dev/null
+++ b/ext/hermes/yuv2rgb.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 1995 The Regents of the University of California.
+ * All rights reserved.
+ * 
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ * 
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef __YUV2RGB_H__
+#define __YUV2RGB_H__
+
+#include <gst/gst.h>
+
+typedef struct _GstColorSpaceYUVTables GstColorSpaceYUVTables;
+
+struct _GstColorSpaceYUVTables {
+  int gammaCorrectFlag;
+  double gammaCorrect;
+  int chromaCorrectFlag;
+  double chromaCorrect;
+
+  int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
+
+  /*
+   *  We define tables that convert a color value between -256 and 512
+   *  into the R, G and B parts of the pixel. The normal range is 0-255.
+   **/
+
+  long *r_2_pix;
+  long *g_2_pix;
+  long *b_2_pix;
+};
+
+
+typedef struct _GstColorSpaceConverter GstColorSpaceConverter;
+typedef void (*GstColorSpaceConvertFunction) (GstColorSpaceConverter *space, guchar *src, guchar *dest);
+
+struct _GstColorSpaceConverter {
+  guint width;
+  guint height;
+  guint insize;
+  guint outsize;
+  /* private */
+  GstColorSpaceYUVTables *color_tables;
+  GstColorSpaceConvertFunction convert;
+};
+
+
+GstColorSpaceConverter* 	gst_colorspace_yuv2rgb_get_converter	(GstCaps *from, GstCaps *to);
+#define 			gst_colorspace_convert(converter, src, dest) \
+								(converter)->convert((converter), (src), (dest))
+void 				gst_colorspace_destroy		(GstColorSpaceConverter *space);
+
+#endif
+
diff --git a/ext/hermes/yuv2rgb_mmx16.s b/ext/hermes/yuv2rgb_mmx16.s
new file mode 100644
index 00000000..8f7b1f77
--- /dev/null
+++ b/ext/hermes/yuv2rgb_mmx16.s
@@ -0,0 +1,188 @@
+.globl mmx_80w
+.data
+	.align 4
+	.type	 mmx_80w,@object
+	.size	 mmx_80w,8
+mmx_80w:
+	.long 8388736
+	.long 8388736
+.globl mmx_10w
+	.align 4
+	.type	 mmx_10w,@object
+	.size	 mmx_10w,8
+mmx_10w:
+	.long 269488144
+	.long 269488144
+.globl mmx_00ffw
+	.align 4
+	.type	 mmx_00ffw,@object
+	.size	 mmx_00ffw,8
+mmx_00ffw:
+	.long 16711935
+	.long 16711935
+.globl mmx_Y_coeff
+	.align 4
+	.type	 mmx_Y_coeff,@object
+	.size	 mmx_Y_coeff,8
+mmx_Y_coeff:
+	.long 624895295
+	.long 624895295
+.globl mmx_U_green
+	.align 4
+	.type	 mmx_U_green,@object
+	.size	 mmx_U_green,8
+mmx_U_green:
+	.long -209849475
+	.long -209849475
+.globl mmx_U_blue
+	.align 4
+	.type	 mmx_U_blue,@object
+	.size	 mmx_U_blue,8
+mmx_U_blue:
+	.long 1083392147
+	.long 1083392147
+.globl mmx_V_red
+	.align 4
+	.type	 mmx_V_red,@object
+	.size	 mmx_V_red,8
+mmx_V_red:
+	.long 856830738
+	.long 856830738
+.globl mmx_V_green
+	.align 4
+	.type	 mmx_V_green,@object
+	.size	 mmx_V_green,8
+mmx_V_green:
+	.long -436410884
+	.long -436410884
+.globl mmx_redmask
+	.align 4
+	.type	 mmx_redmask,@object
+	.size	 mmx_redmask,8
+mmx_redmask:
+	.long -117901064
+	.long -117901064
+.globl mmx_grnmask
+	.align 4
+	.type	 mmx_grnmask,@object
+	.size	 mmx_grnmask,8
+mmx_grnmask:
+	.long -50529028
+	.long -50529028
+.text
+	.align 4
+.globl gst_colorspace_yuv_to_bgr16_mmx
+	.type	 gst_colorspace_yuv_to_bgr16_mmx,@function
+gst_colorspace_yuv_to_bgr16_mmx:
+	subl $8,%esp
+	pushl %ebp
+	pushl %edi
+	pushl %esi
+	movl 28(%esp),%edi
+	movl 32(%esp),%ecx
+	movl 36(%esp),%edx
+	movl $1,%ebp
+	movl 48(%esp),%esi
+	sarl $1,%esi
+	movl %esi,16(%esp)
+
+	pxor      %mm4, %mm4      	# zero mm4
+	
+	movl %esi,12(%esp)
+	sarl $2,12(%esp)
+
+	movl 40(%esp),%esi
+
+	.p2align 4,,7
+.L68:
+
+	movd      (%ecx), %mm0       	# Load 4 Cb       00 00 00 00 00 u3 u2 u1 u0
+	movd      (%edx), %mm1       	# Load 4 Cr       00 00 00 00 00 v2 v1 v0
+	movq      (%edi), %mm6       	# Load 8 Y        Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+	
+	movl 12(%esp),%eax
+
+	.p2align 4,,7
+.L74:
+	punpcklbw %mm4, %mm0      	# scatter 4 Cb    00 u3 00 u2 00 u1 00 u0
+	punpcklbw %mm4, %mm1      	# scatter 4 Cr    00 v3 00 v2 00 v1 00 v0
+	psubsw    mmx_80w, %mm0    	# Cb -= 128
+	psubsw    mmx_80w, %mm1    	# Cr -= 128
+	psllw     $3, %mm0         	# Promote precision
+	psllw     $3, %mm1         	# Promote precision
+	movq      %mm0, %mm2      	# Copy 4 Cb       00 u3 00 u2 00 u1 00 u0
+	movq      %mm1, %mm3      	# Copy 4 Cr       00 v3 00 v2 00 v1 00 v0
+	pmulhw    mmx_U_green, %mm2	# Mul Cb with green coeff -> Cb green
+	pmulhw    mmx_V_green, %mm3	# Mul Cr with green coeff -> Cr green
+	pmulhw    mmx_U_blue, %mm0 	# Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0
+	pmulhw    mmx_V_red, %mm1  	# Mul Cr -> Cred  00 r3 00 r2 00 r1 00 r0
+	paddsw    %mm3, %mm2      	# Cb green + Cr green -> Cgreen
+	psubusb   mmx_10w, %mm6    	# Y -= 16
+	movq      %mm6, %mm7      	# Copy 8 Y        Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+	pand      mmx_00ffw, %mm6  	# get Y even      00 Y6 00 Y4 00 Y2 00 Y0
+	psrlw     $8, %mm7         	# get Y odd       00 Y7 00 Y5 00 Y3 00 Y1
+	psllw     $3, %mm6         	# Promote precision
+	psllw     $3, %mm7         	# Promote precision
+	pmulhw    mmx_Y_coeff, %mm6	# Mul 4 Y even    00 y6 00 y4 00 y2 00 y0
+	pmulhw    mmx_Y_coeff, %mm7	# Mul 4 Y odd     00 y7 00 y5 00 y3 00 y1
+	movq      %mm0, %mm3      	# Copy Cblue
+	movq      %mm1, %mm4      	# Copy Cred
+	movq      %mm2, %mm5      	# Copy Cgreen
+	paddsw    %mm6, %mm0      	# Y even + Cblue  00 B6 00 B4 00 B2 00 B0
+	paddsw    %mm7, %mm3      	# Y odd  + Cblue  00 B7 00 B5 00 B3 00 B1
+	paddsw    %mm6, %mm1      	# Y even + Cred   00 R6 00 R4 00 R2 00 R0
+	paddsw    %mm7, %mm4      	# Y odd  + Cred   00 R7 00 R5 00 R3 00 R1
+	paddsw    %mm6, %mm2      	# Y even + Cgreen 00 G6 00 G4 00 G2 00 G0
+	paddsw    %mm7, %mm5      	# Y odd  + Cgreen 00 G7 00 G5 00 G3 00 G1
+	packuswb  %mm0, %mm0      	# B6 B4 B2 B0 | B6 B4 B2 B0
+	packuswb  %mm1, %mm1      	# R6 R4 R2 R0 | R6 R4 R2 R0
+	packuswb  %mm2, %mm2      	# G6 G4 G2 G0 | G6 G4 G2 G0
+	packuswb  %mm3, %mm3      	# B7 B5 B3 B1 | B7 B5 B3 B1
+	packuswb  %mm4, %mm4      	# R7 R5 R3 R1 | R7 R5 R3 R1
+	packuswb  %mm5, %mm5      	# G7 G5 G3 G1 | G7 G5 G3 G1
+	punpcklbw %mm3, %mm0      	#                 B7 B6 B5 B4 B3 B2 B1 B0
+	punpcklbw %mm4, %mm1      	#                 R7 R6 R5 R4 R3 R2 R1 R0
+	punpcklbw %mm5, %mm2      	#                 G7 G6 G5 G4 G3 G2 G1 G0
+	pand      mmx_redmask, %mm0	# b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0
+	pand      mmx_grnmask, %mm2	# g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0
+	pand      mmx_redmask, %mm1	# r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0
+	psrlw     $3,%mm0		#0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3
+	pxor      %mm4, %mm4      	# zero mm4
+	movq      %mm0, %mm5      	# Copy B7-B0
+	movq      %mm2, %mm7      	# Copy G7-G0
+	punpcklbw %mm4, %mm2      	#  0_0_0_0  0_0_0_0 g7g6g5g4 g3g2_0_0
+	punpcklbw %mm1, %mm0      	# r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
+	psllw     $3,%mm2		#  0_0_0_0 0_g7g6g5 g4g3g2_0  0_0_0_0
+	por       %mm2, %mm0      	# r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
+	movq      8(%edi), %mm6      	# Load 8 Y        Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+	movq      %mm0, (%esi)       	# store pixel 0-3
+	punpckhbw %mm4, %mm7      	#  0_0_0_0  0_0_0_0 g7g6g5g4 g3g2_0_0
+	punpckhbw %mm1, %mm5      	# r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
+	psllw     $3,%mm7		#  0_0_0_0 0_g7g6g5 g4g3g2_0  0_0_0_0
+	movd      4(%ecx), %mm0      	# Load 4 Cb       00 00 00 00 u3 u2 u1 u0
+	por       %mm7, %mm5      	# r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
+	movd      4(%edx), %mm1      	# Load 4 Cr       00 00 00 00 v3 v2 v1 v0
+	movq      %mm5, 8(%esi)      	# store pixel 4-7
+	
+	addl $8,%edi
+	addl $4,%ecx
+	addl $4,%edx
+	addl $16,%esi
+	decl %eax
+	jnz .L74
+.L72:
+	xorl $1,%ebp
+	jne .L76
+	subl 16(%esp),%ecx
+	subl 16(%esp),%edx
+.L76:
+	subl $1,44(%esp)
+	jnz .L68
+
+	emms
+	
+	popl %esi
+	popl %edi
+	popl %ebp
+	addl $8,%esp
+	ret
diff --git a/ext/hermes/yuv2yuv.c b/ext/hermes/yuv2yuv.c
new file mode 100644
index 00000000..bec60c8a
--- /dev/null
+++ b/ext/hermes/yuv2yuv.c
@@ -0,0 +1,55 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+
+#include <gst/gst.h>
+
+//#undef HAVE_LIBMMX
+
+#ifdef HAVE_LIBMMX
+#include "mmx.h"
+#endif
+
+void gst_colorspace_yuy2_to_i420(unsigned char *src, unsigned char *dest, guint width, guint height) 
+{
+  int size, i, j;
+  guchar *desty, *destr, *destb;
+
+  size = width * height;
+
+  desty = dest;
+  destr = desty + size;
+  destb = destr + (size>>2);
+
+  for (i=0; i<height; i++) {
+    for (j=0; j<(width>>1); j++) {
+      *desty++ = *src;
+      *desty++ = *(src+2);
+      if ((i&1) == 0) {
+        *destr++ = *(src+1);
+        *destb++ = *(src+3);
+      }
+      src += 4;
+    }
+  }
+}