adding hermes

Original commit message from CVS:
adding hermes

1 files changed, 55 insertions, 0 deletions

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;
+    }
+  }
+}