Initial version of the a64 (multicolor charset) codec

Originally committed as revision 24873 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 92 insertions, 0 deletions

diff --git a/libavcodec/a64tables.h b/libavcodec/a64tables.h
new file mode 100644
index 0000000..31d8c2e
--- /dev/null
+++ b/libavcodec/a64tables.h
@@ -0,0 +1,92 @@
+/*
+ * a64 video encoder - tables used by a64 encoders
+ * Copyright (c) 2009 Tobias Bindhammer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a64 video encoder - tables used by a64 encoders
+ */
+
+#ifndef AVCODEC_A64TABLES_H
+#define AVCODEC_A64TABLES_H
+
+#include <stdint.h>
+
+/**
+ * dither patterns used vor rendering the multicolor charset
+ */
+static const uint8_t prep_dither_patterns[9][4][4] = {
+    {
+     {0, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 0, 0}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 1, 0},
+     {0, 0, 0, 0}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 0, 1, 0},
+     {0, 1, 0, 0},
+     {0, 0, 0, 1}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 1, 0, 1},
+     {0, 0, 1, 0},
+     {0, 1, 0, 1}
+     },
+    {
+     {1, 0, 1, 0},
+     {0, 1, 0, 1},
+     {1, 0, 1, 0},
+     {0, 1, 0, 1}
+     },
+    {
+     {1, 1, 1, 0},
+     {0, 1, 0, 1},
+     {1, 0, 1, 1},
+     {0, 1, 0, 1}
+     },
+    {
+     {0, 1, 1, 1},
+     {1, 1, 0, 1},
+     {1, 0, 1, 1},
+     {1, 1, 1, 0}
+     },
+    {
+     {0, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 0, 1},
+     {1, 1, 1, 1}
+     },
+    {
+     {1, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 1, 1}
+     },
+};
+
+#endif /* AVCODEC_A64TABLES_H */