2 * Duck Truemotion v1 Decoding Tables
4 * Data in this file was originally part of VpVision from On2 which is
5 * distributed under the GNU GPL. It is redistributed with ffmpeg under the
6 * GNU LGPL using the common understanding that data tables necessary for
7 * decoding algorithms are not necessarily licensable.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef TRUEMOTION1DATA_H
24 #define TRUEMOTION1DATA_H
26 /* Y delta tables, skinny and fat */
27 static const int16_t ydt1[8] = { 0, -2, 2, -6, 6, -12, 12, -12 };
28 static const int16_t ydt2[8] = { 0, -2, 4, -6, 8, -12, 12, -12 };
29 static const int16_t ydt3[8] = { 4, -6, 20, -20, 46, -46, 94, -94 };
30 static const int16_t fat_ydt3[8] = { 0, -15, 50, -50, 115, -115, 235, -235 };
31 static const int16_t ydt4[8] = { 0, -4, 4, -16, 16, -36, 36, -80 };
32 static const int16_t fat_ydt4[8] = { 0, 40, 80, -76, 160, -154, 236, -236 };
34 /* C delta tables, skinny and fat */
35 static const int16_t cdt1[8] = { 0, -1, 1, -2, 3, -4, 5, -4 };
36 static const int16_t cdt2[8] = { 0, -4, 3, -16, 20, -32, 36, -32 };
37 static const int16_t fat_cdt2[8] = { 0, -20, 15, -80, 100, -160, 180, -160 };
38 static const int16_t cdt3[8] = { 0, -2, 2, -8, 8, -18, 18, -40 };
39 /* NOTE: This table breaks the [+,-] pattern that the rest of the
40 * tables maintain. Is this intentional? */
41 static const int16_t fat_cdt3[8] = { 0, 40, 80, -76, 160, -154, 236, -236 };
43 /* all the delta tables to choose from, at all 4 delta levels */
44 static const int16_t *ydts[] = { ydt1, ydt2, ydt3, ydt4, NULL };
45 static const int16_t *fat_ydts[] = { fat_ydt3, fat_ydt3, fat_ydt3, fat_ydt4, NULL };
46 static const int16_t *cdts[] = { cdt1, cdt1, cdt2, cdt3, NULL };
47 static const int16_t *fat_cdts[] = { fat_cdt2, fat_cdt2, fat_cdt2, fat_cdt3, NULL };
49 static const uint8_t pc_tbl2[] = {
50 0x8,0x00,0x00,0x00,0x00,
51 0x8,0x00,0x00,0x00,0x00,
52 0x8,0x10,0x00,0x00,0x00,
53 0x8,0x01,0x00,0x00,0x00,
54 0x8,0x00,0x10,0x00,0x00,
55 0x8,0x00,0x01,0x00,0x00,
56 0x8,0x00,0x00,0x10,0x00,
57 0x8,0x00,0x00,0x01,0x00,
58 0x8,0x00,0x00,0x00,0x10,
59 0x8,0x00,0x00,0x00,0x01,
308 static const uint8_t pc_tbl3[] = {
567 static const uint8_t pc_tbl4[] = {
568 0x8,0x00,0x00,0x00,0x00,
569 0x8,0x00,0x00,0x00,0x00,
570 0x8,0x20,0x00,0x00,0x00,
571 0x8,0x00,0x00,0x00,0x01,
572 0x8,0x10,0x00,0x00,0x00,
573 0x8,0x00,0x00,0x00,0x02,
574 0x8,0x01,0x00,0x00,0x00,
575 0x8,0x00,0x00,0x00,0x10,
576 0x8,0x02,0x00,0x00,0x00,
826 static const uint8_t *tables[] = { pc_tbl2, pc_tbl3, pc_tbl4 };