Data tables for future RV30/40 decoder

Originally committed as revision 11089 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 174 insertions, 0 deletions

diff --git a/libavcodec/rv30data.h b/libavcodec/rv30data.h
new file mode 100644
index 0000000000..50132ba3b3
--- /dev/null
+++ b/libavcodec/rv30data.h
@@ -0,0 +1,174 @@
+/*
+ * RealVideo 3 decoder
+ * copyright (c) 2007 Konstantin Shishkov
+ *
+ * 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 rv30data.h
+ * Miscellaneous RV30 tables.
+ */
+
+#ifndef FFMPEG_RV30DATA_H
+#define FFMPEG_RV30DATA_H
+
+#include <stdint.h>
+
+/** DC quantizer mapping for RV30 */
+static const uint8_t rv30_luma_dc_quant[32] = {
+     0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
+    16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
+};
+
+/**
+ * This table is used for storing differences
+ * between predicted and real intra type.
+ */
+static const uint8_t rv30_itype_code[9*9*2] = {
+    0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
+    2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
+    4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
+    2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
+    3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
+    1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
+    4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
+    4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
+    5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
+};
+
+/**
+ * This table is used for retrieving current intra type
+ * basing on its neighbours and adjustment provided by
+ * code read and decoded before.
+ *
+ * This is really three-dimensional matrix with dimensions
+ * [-1..9][-1..9][0..9], first and second coordinates
+ * are detemined by top and left neighbours (-1 if unavailable).
+ */
+static const uint8_t rv30_itype_from_context[900] = {
+    0, 9, 9, 9, 9, 9, 9, 9, 9,
+    0, 2, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    2, 0, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+
+    0, 1, 9, 9, 9, 9, 9, 9, 9,
+    0, 2, 1, 6, 4, 8, 5, 7, 3,
+    1, 0, 2, 6, 5, 4, 3, 8, 7,
+    2, 8, 0, 1, 7, 4, 3, 6, 5,
+    2, 0, 1, 3, 8, 5, 4, 7, 6,
+    2, 0, 1, 4, 6, 7, 8, 3, 5,
+    0, 1, 5, 2, 6, 3, 8, 4, 7,
+    0, 1, 6, 2, 4, 7, 5, 8, 3,
+    2, 7, 0, 1, 4, 8, 6, 3, 5,
+    2, 8, 0, 1, 7, 3, 4, 5, 6,
+
+    1, 0, 9, 9, 9, 9, 9, 9, 9,
+    1, 2, 5, 6, 3, 0, 4, 8, 7,
+    1, 6, 2, 5, 3, 0, 4, 8, 7,
+    2, 1, 7, 6, 8, 3, 5, 0, 4,
+    1, 2, 5, 3, 6, 8, 4, 7, 0,
+    1, 6, 2, 0, 4, 5, 8, 7, 3,
+    1, 5, 2, 6, 3, 8, 4, 0, 7,
+    1, 6, 0, 2, 4, 5, 7, 3, 8,
+    2, 1, 7, 6, 0, 8, 5, 4, 3,
+    1, 2, 7, 8, 3, 4, 5, 6, 0,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    0, 2, 1, 8, 7, 6, 5, 4, 3,
+    1, 2, 0, 6, 5, 7, 4, 8, 3,
+    2, 8, 7, 1, 0, 6, 4, 3, 5,
+    2, 0, 8, 1, 3, 7, 5, 4, 6,
+    2, 0, 4, 1, 7, 8, 6, 3, 5,
+    2, 0, 1, 5, 8, 4, 6, 7, 3,
+    2, 0, 6, 1, 4, 7, 8, 5, 3,
+    2, 7, 8, 1, 0, 5, 4, 6, 3,
+    2, 8, 7, 1, 0, 4, 3, 6, 5,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    0, 2, 1, 3, 5, 8, 6, 4, 7,
+    1, 0, 2, 5, 3, 6, 4, 8, 7,
+    2, 8, 1, 0, 3, 5, 7, 6, 4,
+    3, 2, 5, 8, 1, 4, 6, 7, 0,
+    4, 2, 0, 6, 1, 5, 8, 3, 7,
+    5, 3, 1, 2, 8, 6, 4, 0, 7,
+    1, 6, 0, 2, 4, 5, 8, 3, 7,
+    2, 7, 0, 1, 5, 4, 8, 6, 3,
+    2, 8, 3, 5, 1, 0, 7, 6, 4,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    2, 0, 6, 1, 4, 7, 5, 8, 3,
+    1, 6, 2, 0, 4, 5, 3, 7, 8,
+    2, 8, 7, 6, 4, 0, 1, 5, 3,
+    4, 2, 1, 0, 6, 8, 3, 5, 7,
+    4, 2, 6, 0, 1, 5, 7, 8, 3,
+    1, 2, 5, 0, 6, 3, 4, 7, 8,
+    6, 4, 0, 1, 2, 7, 5, 3, 8,
+    2, 7, 4, 6, 0, 1, 8, 5, 3,
+    2, 8, 7, 4, 6, 1, 3, 5, 0,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    5, 1, 2, 3, 6, 8, 0, 4, 7,
+    1, 5, 6, 3, 2, 0, 4, 8, 7,
+    2, 1, 5, 3, 6, 8, 7, 4, 0,
+    5, 3, 1, 2, 6, 8, 4, 7, 0,
+    1, 6, 2, 4, 5, 8, 0, 3, 7,
+    5, 1, 3, 6, 2, 0, 8, 4, 7,
+    1, 6, 5, 2, 0, 4, 3, 7, 8,
+    2, 7, 1, 6, 5, 0, 8, 3, 4,
+    2, 5, 1, 3, 6, 8, 4, 0, 7,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    1, 6, 2, 0, 5, 4, 3, 7, 8,
+    1, 6, 5, 4, 2, 3, 0, 7, 8,
+    2, 1, 6, 7, 4, 8, 5, 3, 0,
+    2, 1, 6, 5, 8, 4, 3, 0, 7,
+    6, 4, 1, 2, 0, 5, 7, 8, 3,
+    1, 6, 5, 2, 3, 0, 4, 8, 7,
+    6, 1, 4, 0, 2, 7, 5, 3, 8,
+    2, 7, 4, 6, 1, 5, 0, 8, 3,
+    2, 1, 6, 8, 4, 7, 3, 5, 0,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    2, 0, 4, 7, 6, 1, 8, 5, 3,
+    6, 1, 2, 0, 4, 7, 5, 8, 3,
+    2, 7, 8, 0, 1, 6, 4, 3, 5,
+    2, 4, 0, 8, 3, 1, 7, 6, 5,
+    4, 2, 7, 0, 6, 1, 8, 5, 3,
+    2, 1, 0, 8, 5, 6, 7, 4, 3,
+    2, 6, 4, 1, 7, 0, 5, 8, 3,
+    2, 7, 4, 0, 8, 6, 1, 5, 3,
+    2, 8, 7, 4, 1, 0, 3, 6, 5,
+
+    9, 9, 9, 9, 9, 9, 9, 9, 9,
+    2, 0, 8, 1, 3, 4, 6, 5, 7,
+    1, 2, 0, 6, 8, 5, 7, 3, 4,
+    2, 8, 7, 1, 0, 3, 6, 5, 4,
+    8, 3, 2, 5, 1, 0, 4, 7, 6,
+    2, 0, 4, 8, 5, 1, 7, 6, 3,
+    2, 1, 0, 8, 5, 3, 6, 4, 7,
+    2, 1, 6, 0, 8, 4, 5, 7, 3,
+    2, 7, 8, 4, 0, 6, 1, 5, 3,
+    2, 8, 3, 0, 7, 4, 1, 6, 5,
+};
+#endif /* FFMPEG_RV30DATA_H */