mirror of https://git.ffmpeg.org/ffmpeg.git
470 lines
13 KiB
C
470 lines
13 KiB
C
/*
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* MPEG1 codec / MPEG2 decoder
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* copyright (c) 2000,2001 Fabrice Bellard
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* copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file mpeg12data.h
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* MPEG1/2 tables.
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*/
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const uint16_t ff_mpeg1_default_intra_matrix[64] = {
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8, 16, 19, 22, 26, 27, 29, 34,
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16, 16, 22, 24, 27, 29, 34, 37,
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19, 22, 26, 27, 29, 34, 34, 38,
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22, 22, 26, 27, 29, 34, 37, 40,
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22, 26, 27, 29, 32, 35, 40, 48,
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26, 27, 29, 32, 35, 40, 48, 58,
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26, 27, 29, 34, 38, 46, 56, 69,
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27, 29, 35, 38, 46, 56, 69, 83
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};
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const uint16_t ff_mpeg1_default_non_intra_matrix[64] = {
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 16, 16, 16, 16,
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};
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static const uint16_t vlc_dc_lum_code[12] = {
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0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff,
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};
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static const unsigned char vlc_dc_lum_bits[12] = {
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3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9,
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};
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const uint16_t vlc_dc_chroma_code[12] = {
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0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff,
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};
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const unsigned char vlc_dc_chroma_bits[12] = {
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2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
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};
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static const uint16_t mpeg1_vlc[113][2] = {
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{ 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 },
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{ 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 },
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{ 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 },
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{ 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 },
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{ 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 },
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{ 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 },
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{ 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 },
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{ 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 },
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{ 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 },
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{ 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 },
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{ 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 },
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{ 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 },
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{ 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 },
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{ 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 },
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{ 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 },
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{ 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 },
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{ 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 },
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{ 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 },
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{ 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 },
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{ 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 },
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{ 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },
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{ 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 },
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{ 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 },
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{ 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 },
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{ 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 },
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{ 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 },
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{ 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 },
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{ 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 },
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{ 0x1, 6 }, /* escape */
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{ 0x2, 2 }, /* EOB */
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};
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static const uint16_t mpeg2_vlc[113][2] = {
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{0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},
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{0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},
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{0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},
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{0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},
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{0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
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{0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
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{0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
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{0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
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{0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
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{0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},
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{0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},
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{0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
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{0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
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{0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
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{0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},
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{0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},
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{0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},
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{0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},
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{0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},
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{0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},
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{0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},
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{0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},
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{0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},
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{0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},
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{0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},
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{0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},
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{0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},
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{0x1d,16}, {0x1c,16}, {0x1b,16},
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{0x01,6}, /* escape */
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{0x06,4}, /* EOB */
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};
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static const int8_t mpeg1_level[111] = {
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1, 2, 3, 4, 5, 6, 7, 8,
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9, 10, 11, 12, 13, 14, 15, 16,
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17, 18, 19, 20, 21, 22, 23, 24,
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25, 26, 27, 28, 29, 30, 31, 32,
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33, 34, 35, 36, 37, 38, 39, 40,
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1, 2, 3, 4, 5, 6, 7, 8,
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9, 10, 11, 12, 13, 14, 15, 16,
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17, 18, 1, 2, 3, 4, 5, 1,
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2, 3, 4, 1, 2, 3, 1, 2,
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3, 1, 2, 3, 1, 2, 1, 2,
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1, 2, 1, 2, 1, 2, 1, 2,
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1, 2, 1, 2, 1, 2, 1, 2,
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1,
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};
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static const int8_t mpeg1_run[111] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 2, 2, 2, 2, 2, 3,
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3, 3, 3, 4, 4, 4, 5, 5,
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5, 6, 6, 6, 7, 7, 8, 8,
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9, 9, 10, 10, 11, 11, 12, 12,
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13, 13, 14, 14, 15, 15, 16, 16,
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17, 18, 19, 20, 21, 22, 23, 24,
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25, 26, 27, 28, 29, 30, 31,
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};
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static RLTable rl_mpeg1 = {
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111,
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111,
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mpeg1_vlc,
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mpeg1_run,
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mpeg1_level,
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};
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static RLTable rl_mpeg2 = {
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111,
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111,
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mpeg2_vlc,
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mpeg1_run,
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mpeg1_level,
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};
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static const uint8_t mbAddrIncrTable[36][2] = {
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{0x1, 1},
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{0x3, 3},
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{0x2, 3},
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{0x3, 4},
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{0x2, 4},
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{0x3, 5},
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{0x2, 5},
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{0x7, 7},
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{0x6, 7},
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{0xb, 8},
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{0xa, 8},
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{0x9, 8},
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{0x8, 8},
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{0x7, 8},
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{0x6, 8},
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{0x17, 10},
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{0x16, 10},
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{0x15, 10},
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{0x14, 10},
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{0x13, 10},
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{0x12, 10},
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{0x23, 11},
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{0x22, 11},
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{0x21, 11},
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{0x20, 11},
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{0x1f, 11},
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{0x1e, 11},
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{0x1d, 11},
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{0x1c, 11},
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{0x1b, 11},
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{0x1a, 11},
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{0x19, 11},
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{0x18, 11},
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{0x8, 11}, /* escape */
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{0xf, 11}, /* stuffing */
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{0x0, 8}, /* end (and 15 more 0 bits should follow) */
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};
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static const uint8_t mbPatTable[64][2] = {
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{0x1, 9},
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{0xb, 5},
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{0x9, 5},
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{0xd, 6},
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{0xd, 4},
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{0x17, 7},
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{0x13, 7},
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{0x1f, 8},
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{0xc, 4},
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{0x16, 7},
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{0x12, 7},
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{0x1e, 8},
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{0x13, 5},
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{0x1b, 8},
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{0x17, 8},
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{0x13, 8},
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{0xb, 4},
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{0x15, 7},
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{0x11, 7},
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{0x1d, 8},
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{0x11, 5},
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{0x19, 8},
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{0x15, 8},
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{0x11, 8},
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{0xf, 6},
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{0xf, 8},
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{0xd, 8},
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{0x3, 9},
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{0xf, 5},
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{0xb, 8},
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{0x7, 8},
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{0x7, 9},
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{0xa, 4},
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{0x14, 7},
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{0x10, 7},
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{0x1c, 8},
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{0xe, 6},
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{0xe, 8},
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{0xc, 8},
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{0x2, 9},
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{0x10, 5},
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{0x18, 8},
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{0x14, 8},
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{0x10, 8},
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{0xe, 5},
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{0xa, 8},
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{0x6, 8},
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{0x6, 9},
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{0x12, 5},
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{0x1a, 8},
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{0x16, 8},
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{0x12, 8},
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{0xd, 5},
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{0x9, 8},
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{0x5, 8},
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{0x5, 9},
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{0xc, 5},
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{0x8, 8},
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{0x4, 8},
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{0x4, 9},
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{0x7, 3},
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{0xa, 5},
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{0x8, 5},
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{0xc, 6}
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};
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#define MB_TYPE_ZERO_MV 0x20000000
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#define IS_ZERO_MV(a) ((a)&MB_TYPE_ZERO_MV)
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static const uint8_t table_mb_ptype[7][2] = {
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{ 3, 5 }, // 0x01 MB_INTRA
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{ 1, 2 }, // 0x02 MB_PAT
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{ 1, 3 }, // 0x08 MB_FOR
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{ 1, 1 }, // 0x0A MB_FOR|MB_PAT
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{ 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
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{ 1, 5 }, // 0x12 MB_QUANT|MB_PAT
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{ 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
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};
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static const uint32_t ptype2mb_type[7] = {
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MB_TYPE_INTRA,
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MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16,
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MB_TYPE_L0,
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MB_TYPE_L0 | MB_TYPE_CBP,
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MB_TYPE_QUANT | MB_TYPE_INTRA,
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MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16,
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MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP,
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};
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static const uint8_t table_mb_btype[11][2] = {
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{ 3, 5 }, // 0x01 MB_INTRA
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{ 2, 3 }, // 0x04 MB_BACK
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{ 3, 3 }, // 0x06 MB_BACK|MB_PAT
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{ 2, 4 }, // 0x08 MB_FOR
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{ 3, 4 }, // 0x0A MB_FOR|MB_PAT
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{ 2, 2 }, // 0x0C MB_FOR|MB_BACK
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{ 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT
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{ 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
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{ 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT
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{ 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
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{ 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT
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};
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static const uint32_t btype2mb_type[11] = {
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MB_TYPE_INTRA,
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MB_TYPE_L1,
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MB_TYPE_L1 | MB_TYPE_CBP,
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MB_TYPE_L0,
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MB_TYPE_L0 | MB_TYPE_CBP,
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MB_TYPE_L0L1,
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MB_TYPE_L0L1 | MB_TYPE_CBP,
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MB_TYPE_QUANT | MB_TYPE_INTRA,
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MB_TYPE_QUANT | MB_TYPE_L1 | MB_TYPE_CBP,
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MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP,
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MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_CBP,
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};
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static const uint8_t mbMotionVectorTable[17][2] = {
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{ 0x1, 1 },
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{ 0x1, 2 },
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{ 0x1, 3 },
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{ 0x1, 4 },
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{ 0x3, 6 },
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{ 0x5, 7 },
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{ 0x4, 7 },
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{ 0x3, 7 },
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{ 0xb, 9 },
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{ 0xa, 9 },
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{ 0x9, 9 },
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{ 0x11, 10 },
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{ 0x10, 10 },
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{ 0xf, 10 },
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{ 0xe, 10 },
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{ 0xd, 10 },
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{ 0xc, 10 },
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};
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const AVRational ff_frame_rate_tab[] = {
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{ 0, 0},
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{24000, 1001},
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{ 24, 1},
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{ 25, 1},
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{30000, 1001},
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{ 30, 1},
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{ 50, 1},
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{60000, 1001},
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{ 60, 1},
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// Xing's 15fps: (9)
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{ 15, 1},
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// libmpeg3's "Unofficial economy rates": (10-13)
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{ 5, 1},
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{ 10, 1},
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{ 12, 1},
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{ 15, 1},
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{ 0, 0},
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};
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static const uint8_t non_linear_qscale[32] = {
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0, 1, 2, 3, 4, 5, 6, 7,
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8,10,12,14,16,18,20,22,
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24,28,32,36,40,44,48,52,
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56,64,72,80,88,96,104,112,
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};
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const uint8_t ff_mpeg1_dc_scale_table[128]={
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// 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
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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};
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|
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static const uint8_t mpeg2_dc_scale_table1[128]={
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// 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
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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|
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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|
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
|
|
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
|
|
};
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|
|
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static const uint8_t mpeg2_dc_scale_table2[128]={
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|
// 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
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|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
};
|
|
|
|
static const uint8_t mpeg2_dc_scale_table3[128]={
|
|
// 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
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
};
|
|
|
|
static const uint8_t *mpeg2_dc_scale_table[4]={
|
|
ff_mpeg1_dc_scale_table,
|
|
mpeg2_dc_scale_table1,
|
|
mpeg2_dc_scale_table2,
|
|
mpeg2_dc_scale_table3,
|
|
};
|
|
|
|
static const float mpeg1_aspect[16]={
|
|
0.0000,
|
|
1.0000,
|
|
0.6735,
|
|
0.7031,
|
|
|
|
0.7615,
|
|
0.8055,
|
|
0.8437,
|
|
0.8935,
|
|
|
|
0.9157,
|
|
0.9815,
|
|
1.0255,
|
|
1.0695,
|
|
|
|
1.0950,
|
|
1.1575,
|
|
1.2015,
|
|
};
|
|
|
|
static const AVRational mpeg2_aspect[16]={
|
|
{0,1},
|
|
{1,1},
|
|
{4,3},
|
|
{16,9},
|
|
{221,100},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
{0,1},
|
|
};
|
|
|
|
static const uint8_t svcd_scan_offset_placeholder[14]={
|
|
0x10, 0x0E,
|
|
0x00, 0x80, 0x81,
|
|
0x00, 0x80, 0x81,
|
|
0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff,
|
|
};
|