+/*
+ * VC-1 and WMV3 decoder
+ * copyright (c) 2006 Konstantin Shishkov
+ * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer
+ *
+ * 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 vc1data.h
- * VC1 tables.
+ * VC-1 tables.
*/
#ifndef VC1DATA_H
#define VC1DATA_H
+#if 0 //original bfraction from vc9data.h, not conforming to standard
+/* Denominator used for vc1_bfraction_lut */
+#define B_FRACTION_DEN 840
+
/* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */
const int16_t vc1_bfraction_lut[23] = {
420 /*1/2*/, 280 /*1/3*/, 560 /*2/3*/, 210 /*1/4*/,
525 /*5/8*/, 735 /*7/8*/,
-1 /*inv.*/, 0 /*BI fm*/
};
-const uint8_t vc1_bfraction_bits[23] = {
+#else
+/* Denominator used for vc1_bfraction_lut */
+#define B_FRACTION_DEN 256
+
+/* pre-computed scales for all bfractions and base=256 */
+static const int16_t vc1_bfraction_lut[23] = {
+ 128 /*1/2*/, 85 /*1/3*/, 170 /*2/3*/, 64 /*1/4*/,
+ 192 /*3/4*/, 51 /*1/5*/, 102 /*2/5*/,
+ 153 /*3/5*/, 204 /*4/5*/, 43 /*1/6*/, 215 /*5/6*/,
+ 37 /*1/7*/, 74 /*2/7*/, 111 /*3/7*/, 148 /*4/7*/,
+ 185 /*5/7*/, 222 /*6/7*/, 32 /*1/8*/, 96 /*3/8*/,
+ 160 /*5/8*/, 224 /*7/8*/,
+ -1 /*inv.*/, 0 /*BI fm*/
+};
+#endif
+
+static const uint8_t vc1_bfraction_bits[23] = {
3, 3, 3, 3,
3, 3, 3,
7, 7, 7, 7,
7, 7,
7, 7
};
-const uint8_t vc1_bfraction_codes[23] = {
+static const uint8_t vc1_bfraction_codes[23] = {
0, 1, 2, 3,
4, 5, 6,
112, 113, 114, 115,
};
const uint8_t wmv3_dc_scale_table[32]={
- 0, 4, 6, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21
+ 0, 2, 4, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21
};
/* P-Picture CBPCY VLC tables */
+#if 1 // Looks like original tables are not conforming to standard at all. Are they used for old WMV?
+static const uint16_t vc1_cbpcy_p_codes[4][64] = {
+ {
+ 0, 6, 15, 13, 13, 11, 3, 13, 5, 8, 49, 10, 12, 114, 102, 119,
+ 1, 54, 96, 8, 10, 111, 5, 15, 12, 10, 2, 12, 13, 115, 53, 63,
+ 1, 7, 1, 7, 14, 12, 4, 14, 1, 9, 97, 11, 7, 58, 52, 62,
+ 4, 103, 1, 9, 11, 56, 101, 118, 4, 110, 100, 30, 2, 5, 4, 3
+ },
+ {
+ 0, 9, 1, 18, 5, 14, 237, 26, 3, 121, 3, 22, 13, 16, 6, 30,
+ 2, 10, 1, 20, 12, 241, 5, 28, 16, 12, 3, 24, 28, 124, 239, 247,
+ 1, 240, 1, 19, 18, 15, 4, 27, 1, 122, 2, 23, 1, 17, 7, 31,
+ 1, 11, 2, 21, 19, 246, 238, 29, 17, 13, 236, 25, 58, 63, 8, 125
+ },
+ {
+ 0, 201, 25, 231, 5, 221, 1, 3, 2, 414, 2, 241, 16, 225, 195, 492,
+ 2, 412, 1, 240, 7, 224, 98, 245, 1, 220, 96, 5, 9, 230, 101, 247,
+ 1, 102, 1, 415, 24, 3, 2, 244, 3, 54, 3, 484, 17, 114, 200, 493,
+ 3, 413, 1, 4, 13, 113, 99, 485, 4, 111, 194, 243, 5, 29, 26, 31
+ },
+ {
+ 0, 28, 12, 44, 3, 36, 20, 52, 2, 32, 16, 48, 8, 40, 24, 28,
+ 1, 30, 14, 46, 6, 38, 22, 54, 3, 34, 18, 50, 10, 42, 26, 30,
+ 1, 29, 13, 45, 5, 37, 21, 53, 2, 33, 17, 49, 9, 41, 25, 29,
+ 1, 31, 15, 47, 7, 39, 23, 55, 4, 35, 19, 51, 11, 43, 27, 31
+ }
+};
+
+static const uint8_t vc1_cbpcy_p_bits[4][64] = {
+ {
+ 13, 13, 7, 13, 7, 13, 13, 12, 6, 13, 7, 12, 6, 8, 8, 8,
+ 5, 7, 8, 12, 6, 8, 13, 12, 7, 13, 13, 12, 6, 8, 7, 7,
+ 6, 13, 8, 12, 7, 13, 13, 12, 7, 13, 8, 12, 5, 7, 7, 7,
+ 6, 8, 13, 12, 6, 7, 8, 8, 5, 8, 8, 6, 3, 3, 3, 2
+ },
+ {
+ 14, 13, 8, 13, 3, 13, 8, 13, 3, 7, 8, 13, 4, 13, 13, 13,
+ 3, 13, 13, 13, 4, 8, 13, 13, 5, 13, 13, 13, 5, 7, 8, 8,
+ 3, 8, 14, 13, 5, 13, 13, 13, 4, 7, 13, 13, 6, 13, 13, 13,
+ 5, 13, 8, 13, 5, 8, 8, 13, 5, 13, 8, 13, 6, 6, 13, 7
+ },
+ {
+ 13, 8, 6, 8, 4, 8, 13, 12, 4, 9, 8, 8, 5, 8, 8, 9,
+ 5, 9, 10, 8, 4, 8, 7, 8, 6, 8, 7, 13, 4, 8, 7, 8,
+ 5, 7, 8, 9, 6, 13, 13, 8, 4, 6, 8, 9, 5, 7, 8, 9,
+ 5, 9, 9, 13, 5, 7, 7, 9, 4, 7, 8, 8, 3, 5, 5, 5
+ },
+ {
+ 9, 9, 9, 9, 2, 9, 9, 9, 2, 9, 9, 9, 9, 9, 9, 8,
+ 3, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8,
+ 2, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8
+ }
+};
+#else
static const uint16_t vc1_cbpcy_p_codes[4][64] = {
{
0, 1, 1, 4, 5, 1, 12, 4, 13, 14, 10, 11, 12, 7, 13, 2,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8
}
};
+#endif
/* MacroBlock Transform Type: 7.1.3.11, p89
* 8x8:B
/* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */
/* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */
+static const int8_t vc1_normal_zz[64] = {
+ 0, 8, 1, 2, 9, 16, 24, 17,
+ 10, 3, 4, 11, 18, 25, 32, 40,
+ 33, 48, 26, 19, 12, 5, 6, 13,
+ 20, 27, 34, 41, 56, 49, 57, 42,
+ 35, 28, 21, 14, 7, 15, 22, 29,
+ 36, 43, 50, 58, 51, 59, 44, 37,
+ 30, 23, 31, 38, 45, 52, 60, 53,
+ 61, 46, 39, 47, 54, 62, 55, 63
+};
+
+static const int8_t vc1_horizontal_zz [64] = /* Table 227 */
+{
+ 0, 1, 8, 2, 3, 9, 16, 24,
+ 17, 10, 4, 5, 11, 18, 25, 32,
+ 40, 48, 33, 26, 19, 12, 6, 7,
+ 13, 20, 27, 34, 41, 56, 49, 57,
+ 42, 35, 28, 21, 14, 15, 22, 29,
+ 36, 43, 50, 58, 51, 44, 37, 30,
+ 23, 31, 38, 45, 52, 59, 60, 53,
+ 46, 39, 47, 54, 61, 62, 55, 63
+};
+
+static const int8_t vc1_vertical_zz [64] = /* Table 228 */
+{
+ 0, 8, 16, 1, 24, 32, 40, 9,
+ 2, 3, 10, 17, 25, 48, 56, 41,
+ 33, 26, 18, 11, 4, 5, 12, 19,
+ 27, 34, 49, 57, 50, 42, 35, 28,
+ 20, 13, 6, 7, 14, 21, 29, 36,
+ 43, 51, 58, 59, 52, 44, 37, 30,
+ 22, 15, 23, 31, 38, 45, 60, 53,
+ 46, 39, 47, 54, 61, 62, 55, 63
+};
+
+static const int8_t vc1_simple_progressive_8x8_zz [64] =
+/* Table 229 */
+{
+ 0, 8, 1, 2, 9, 16, 24, 17,
+ 10, 3, 4, 11, 18, 25, 32, 40,
+ 48, 56, 41, 33, 26, 19, 12, 5,
+ 6, 13, 20, 27, 34, 49, 57, 58,
+ 50, 42, 35, 28, 21, 14, 7, 15,
+ 22, 29, 36, 43, 51, 59, 60, 52,
+ 44, 37, 30, 23, 31, 38, 45, 53,
+ 61, 62, 54, 46, 39, 47, 55, 63
+};
+static const int8_t vc1_simple_progressive_8x4_zz [32] = /* Table 230 */
+{
+ 0, 1, 2, 8, 3, 9, 10, 16,
+ 4, 11, 17, 24, 18, 12, 5, 19,
+ 25, 13, 20, 26, 27, 6, 21, 28,
+ 14, 22, 29, 7, 30, 15, 23, 31
+};
+
+static const int8_t vc1_simple_progressive_4x8_zz [32] = /* Table 231 */
+{
+ 0, 8, 1, 16,
+ 9, 24, 17, 2,
+ 32, 10, 25, 40,
+ 18, 48, 33, 26,
+ 56, 41, 34, 3,
+ 49, 57, 11, 42,
+ 19, 50, 27, 58,
+ 35, 43, 51, 59
+};
+
+/* Table 232 */
+static const int8_t vc1_simple_progressive_4x4_zz [16] =
+{
+ 0, 8, 16, 1,
+ 9, 24, 17, 2,
+ 10, 18, 25, 3,
+ 11, 26, 19, 27
+};
+
+static const int8_t vc1_adv_progressive_8x4_zz [32] = /* Table 233 */
+{
+ 0, 8, 1, 16, 2, 9, 10, 3,
+ 24, 17, 4, 11, 18, 12, 5, 19,
+ 25, 13, 20, 26, 27, 6, 21, 28,
+ 14, 22, 29, 7, 30, 15, 23, 31
+};
+
+static const int8_t vc1_adv_progressive_4x8_zz [32] = /* Table 234 */
+{
+ 0, 1, 8, 2,
+ 9, 16, 17, 24,
+ 10, 32, 25, 18,
+ 40, 3, 33, 26,
+ 48, 11, 56, 41,
+ 34, 49, 57, 42,
+ 19, 50, 27, 58,
+ 35, 43, 51, 59
+};
+
+static const int8_t vc1_adv_interlaced_8x8_zz [64] = /* Table 235 */
+{
+ 0, 8, 1, 16, 24, 9, 2, 32,
+ 40, 48, 56, 17, 10, 3, 25, 18,
+ 11, 4, 33, 41, 49, 57, 26, 34,
+ 42, 50, 58, 19, 12, 5, 27, 20,
+ 13, 6, 35, 28, 21, 14, 7, 15,
+ 22, 29, 36, 43, 51, 59, 60, 52,
+ 44, 37, 30, 23, 31, 38, 45, 53,
+ 61, 62, 54, 46, 39, 47, 55, 63
+};
+
+static const int8_t vc1_adv_interlaced_8x4_zz [32] = /* Table 236 */
+{
+ 0, 8, 16, 24, 1, 9, 2, 17,
+ 25, 10, 3, 18, 26, 4, 11, 19,
+ 12, 5, 13, 20, 27, 6, 21, 28,
+ 14, 22, 29, 7, 30, 15, 23, 31
+};
+
+static const int8_t vc1_adv_interlaced_4x8_zz [32] = /* Table 237 */
+{
+ 0, 1, 2, 8,
+ 16, 9, 24, 17,
+ 10, 3, 32, 40,
+ 48, 56, 25, 18,
+ 33, 26, 41, 34,
+ 49, 57, 11, 42,
+ 19, 50, 27, 58,
+ 35, 43, 51, 59
+};
+
+static const int8_t vc1_adv_interlaced_4x4_zz [16] = /* Table 238 */
+{
+ 0, 8, 16, 24,
+ 1, 9, 17, 2,
+ 25, 10, 18, 3,
+ 26, 11, 19, 27
+};
+
+
+/* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */
+static const int32_t vc1_dqscale[63] = {
+0x40000, 0x20000, 0x15555, 0x10000, 0xCCCD, 0xAAAB, 0x9249, 0x8000,
+ 0x71C7, 0x6666, 0x5D17, 0x5555, 0x4EC5, 0x4925, 0x4444, 0x4000,
+ 0x3C3C, 0x38E4, 0x35E5, 0x3333, 0x30C3, 0x2E8C, 0x2C86, 0x2AAB,
+ 0x28F6, 0x2762, 0x25ED, 0x2492, 0x234F, 0x2222, 0x2108, 0x2000,
+ 0x1F08, 0x1E1E, 0x1D42, 0x1C72, 0x1BAD, 0x1AF3, 0x1A42, 0x199A,
+ 0x18FA, 0x1862, 0x17D0, 0x1746, 0x16C1, 0x1643, 0x15CA, 0x1555,
+ 0x14E6, 0x147B, 0x1414, 0x13B1, 0x1352, 0x12F7, 0x129E, 0x1249,
+ 0x11F7, 0x11A8, 0x115B, 0x1111, 0x10C9, 0x1084, 0x1000
+};
#endif /* VC1DATA_H */