| /* |
| * VC-1 and WMV3 decoder |
| * copyright (c) 2011 Mashiat Sarker Shakkhar |
| * 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 |
| * VC-1 tables. |
| */ |
| |
| #include "vc1.h" |
| #include "vc1data.h" |
| #include "vlc.h" |
| |
| /** Table for conversion between TTBLK and TTMB */ |
| const int ff_vc1_ttblk_to_tt[3][8] = { |
| { TT_8X4, TT_4X8, TT_8X8, TT_4X4, TT_8X4_TOP, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT }, |
| { TT_8X8, TT_4X8_RIGHT, TT_4X8_LEFT, TT_4X4, TT_8X4, TT_4X8, TT_8X4_BOTTOM, TT_8X4_TOP }, |
| { TT_8X8, TT_4X8, TT_4X4, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT, TT_8X4, TT_8X4_TOP } |
| }; |
| |
| const int ff_vc1_ttfrm_to_tt[4] = { TT_8X8, TT_8X4, TT_4X8, TT_4X4 }; |
| |
| /** MV P mode - the 5th element is only used for mode 1 */ |
| const uint8_t ff_vc1_mv_pmode_table[2][5] = { |
| { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_MIXED_MV }, |
| { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_1MV_HPEL_BILIN } |
| }; |
| const uint8_t ff_vc1_mv_pmode_table2[2][4] = { |
| { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV }, |
| { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_1MV_HPEL_BILIN } |
| }; |
| |
| /* MBMODE table for interlaced frame P-picture */ |
| const uint8_t ff_vc1_mbmode_intfrp[2][15][4] = { |
| { /* 1: 4-MV, 0: non-4-MV */ |
| /* Type, FIELDTX, 1-MV Differential present, Residuals (CBP) present */ |
| /* Table 164 - Table 167 */ |
| { MV_PMODE_INTFR_1MV , 0, 1, 1 }, |
| { MV_PMODE_INTFR_1MV , 1, 1, 1 }, |
| { MV_PMODE_INTFR_1MV , 0, 1, 0 }, |
| { MV_PMODE_INTFR_1MV , 0, 0, 1 }, |
| { MV_PMODE_INTFR_1MV , 1, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 0, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 0 }, |
| { MV_PMODE_INTFR_INTRA , 0, 0, 0 } |
| }, |
| { |
| /* Table 160 - Table 163 */ |
| { MV_PMODE_INTFR_1MV , 0, 1, 1 }, |
| { MV_PMODE_INTFR_1MV , 1, 1, 1 }, |
| { MV_PMODE_INTFR_1MV , 0, 1, 0 }, |
| { MV_PMODE_INTFR_1MV , 0, 0, 1 }, |
| { MV_PMODE_INTFR_1MV , 1, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 0, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 1 }, |
| { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 0 }, |
| { MV_PMODE_INTFR_4MV , 0, 0, 1 }, |
| { MV_PMODE_INTFR_4MV , 1, 0, 1 }, |
| { MV_PMODE_INTFR_4MV , 0, 0, 0 }, |
| { MV_PMODE_INTFR_4MV_FIELD, 0, 0, 1 }, |
| { MV_PMODE_INTFR_4MV_FIELD, 1, 0, 1 }, |
| { MV_PMODE_INTFR_4MV_FIELD, 1, 0, 0 }, |
| { MV_PMODE_INTFR_INTRA , 0, 0, 0 } |
| } |
| }; |
| |
| const int ff_vc1_fps_nr[7] = { 24, 25, 30, 50, 60, 48, 72 }, |
| ff_vc1_fps_dr[2] = { 1000, 1001 }; |
| const uint8_t ff_vc1_pquant_table[3][32] = { |
| /* Implicit quantizer */ |
| { 0, 1, 2, 3, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 11, 12, |
| 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 31 }, |
| /* Explicit quantizer, pquantizer uniform */ |
| { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }, |
| /* Explicit quantizer, pquantizer non-uniform */ |
| { 0, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, |
| 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 31 } |
| }; |
| |
| /** @name VC-1 VLC tables |
| * @todo TODO move this into the context |
| */ |
| //@{ |
| VLCElem ff_vc1_imode_vlc[1 << VC1_IMODE_VLC_BITS]; |
| VLCElem ff_vc1_norm2_vlc[1 << VC1_NORM2_VLC_BITS]; |
| VLCElem ff_vc1_norm6_vlc[556]; |
| /* Could be optimized, one table only needs 8 bits */ |
| const VLCElem *ff_vc1_ttmb_vlc[3]; |
| const VLCElem *ff_vc1_mv_diff_vlc[4]; |
| const VLCElem *ff_vc1_cbpcy_p_vlc[4]; |
| const VLCElem *ff_vc1_icbpcy_vlc[8]; |
| const VLCElem *ff_vc1_4mv_block_pattern_vlc[4]; |
| const VLCElem *ff_vc1_2mv_block_pattern_vlc[4]; |
| const VLCElem *ff_vc1_ttblk_vlc[3]; |
| const VLCElem *ff_vc1_subblkpat_vlc[3]; |
| const VLCElem *ff_vc1_intfr_4mv_mbmode_vlc[4]; |
| const VLCElem *ff_vc1_intfr_non4mv_mbmode_vlc[4]; |
| const VLCElem *ff_vc1_if_mmv_mbmode_vlc[8]; |
| const VLCElem *ff_vc1_if_1mv_mbmode_vlc[8]; |
| const VLCElem *ff_vc1_1ref_mvdata_vlc[4]; |
| const VLCElem *ff_vc1_2ref_mvdata_vlc[8]; |
| |
| const VLCElem *ff_vc1_ac_coeff_table[8]; |
| |
| //@} |
| |
| |
| #if B_FRACTION_DEN == 840 // original bfraction from vc9data.h, not conforming to standard |
| /* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */ |
| const int16_t ff_vc1_bfraction_lut[23] = { |
| 420 /*1/2*/, 280 /*1/3*/, 560 /*2/3*/, 210 /*1/4*/, |
| 630 /*3/4*/, 168 /*1/5*/, 336 /*2/5*/, |
| 504 /*3/5*/, 672 /*4/5*/, 140 /*1/6*/, 700 /*5/6*/, |
| 120 /*1/7*/, 240 /*2/7*/, 360 /*3/7*/, 480 /*4/7*/, |
| 600 /*5/7*/, 720 /*6/7*/, 105 /*1/8*/, 315 /*3/8*/, |
| 525 /*5/8*/, 735 /*7/8*/, |
| -1 /*inv.*/, 0 /*BI fm*/ |
| }; |
| #else |
| /* pre-computed scales for all bfractions and base=256 */ |
| const int16_t ff_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 |
| |
| //Same as H.264 |
| const AVRational ff_vc1_pixel_aspect[16] = { |
| { 0, 1 }, |
| { 1, 1 }, |
| { 12, 11 }, |
| { 10, 11 }, |
| { 16, 11 }, |
| { 40, 33 }, |
| { 24, 11 }, |
| { 20, 11 }, |
| { 32, 11 }, |
| { 80, 33 }, |
| { 18, 11 }, |
| { 15, 11 }, |
| { 64, 33 }, |
| { 160, 99 }, |
| { 0, 1 }, |
| { 0, 1 } |
| }; |
| |
| const uint8_t ff_wmv3_dc_scale_table[32] = { |
| 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 |
| }; |
| |
| |
| /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */ |
| |
| /* Table 232 */ |
| const uint8_t ff_vc1_simple_progressive_4x4_zz [16] = { |
| 0, 8, 16, 1, |
| 9, 24, 17, 2, |
| 10, 18, 25, 3, |
| 11, 26, 19, 27 |
| }; |
| |
| const uint8_t ff_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 |
| }; |
| |
| const uint8_t ff_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 |
| }; |
| |
| const uint8_t ff_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 |
| }; |
| |
| const uint8_t ff_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 |
| }; |
| |
| const uint8_t ff_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 |
| }; |
| |
| const uint8_t ff_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 */ |
| const int32_t ff_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, 0x1041 |
| }; |
| |
| /* P Interlaced field picture MV predictor scaling values (Table 114) */ |
| const uint16_t ff_vc1_field_mvpred_scales[2][7][4] = { |
| // Refdist: |
| // 0 1 2 3 or greater |
| { // current field is first |
| { 128, 192, 213, 224 }, // SCALEOPP |
| { 512, 341, 307, 293 }, // SCALESAME1 |
| { 219, 236, 242, 245 }, // SCALESAME2 |
| { 32, 48, 53, 56 }, // SCALEZONE1_X |
| { 8, 12, 13, 14 }, // SCALEZONE1_Y |
| { 37, 20, 14, 11 }, // ZONE1OFFSET_X |
| { 10, 5, 4, 3 } // ZONE1OFFSET_Y |
| }, |
| { // current field is second |
| { 128, 64, 43, 32 }, // SCALEOPP |
| { 512, 1024, 1536, 2048 }, // SCALESAME1 |
| { 219, 204, 200, 198 }, // SCALESAME2 |
| { 32, 16, 11, 8 }, // SCALEZONE1_X |
| { 8, 4, 3, 2 }, // SCALEZONE1_Y |
| { 37, 52, 56, 58 }, // ZONE1OFFSET_X |
| { 10, 13, 14, 15 } // ZONE1OFFSET_Y |
| } |
| }; |
| |
| /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */ |
| const uint16_t ff_vc1_b_field_mvpred_scales[7][4] = { |
| // BRFD: |
| // 0 1 2 3 or greater |
| { 171, 205, 219, 228 }, // SCALESAME |
| { 384, 320, 299, 288 }, // SCALEOPP1 |
| { 230, 239, 244, 246 }, // SCALEOPP2 |
| { 43, 51, 55, 57 }, // SCALEZONE1_X |
| { 11, 13, 14, 14 }, // SCALEZONE1_Y |
| { 26, 17, 12, 10 }, // ZONE1OFFSET_X |
| { 7, 4, 3, 3 } // ZONE1OFFSET_Y |
| }; |
