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FFmpeg/libavcodec/msmpeg4_vc1_data.c
Andreas Rheinhardt 7902c0df4c avcodec/msmpeg4_vc1_data: Avoid superfluous VLC structures
Of all these VLCs here, only VLC.table was really used
after init, so use the ff_vlc_init_tables API
to get rid of them.
Also combine the ff_msmp4_dc_(luma|chroma)_vlcs as well
as the tables used to generate them to simplify the code.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-10-31 20:46:59 +01:00

254 lines
14 KiB
C

/*
* Common MSMPEG-4 and VC-1 tables and VLC init code
* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
*
* 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
* Common MSMPEG-4 and VC-1 tables and VLC init code
*/
#include "msmpeg4_vc1_data.h"
#include "vlc.h"
#include "libavutil/attributes.h"
#include "libavutil/thread.h"
VLCElem ff_msmp4_mb_i_vlc[536];
const VLCElem *ff_msmp4_dc_vlc[2][2];
static av_cold void msmp4_vc1_vlcs_init(void)
{
static VLCElem vlc_buf[1158 + 1118 + 1476 + 1216];
VLCInitState state = VLC_INIT_STATE(vlc_buf);
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
ff_msmp4_dc_vlc[i][j] =
ff_vlc_init_tables(&state, MSMP4_DC_VLC_BITS, 120,
&ff_msmp4_dc_tables[i][j][0][1], 8, 4,
&ff_msmp4_dc_tables[i][j][0][0], 8, 4, 0);
}
}
VLC_INIT_STATIC_TABLE(ff_msmp4_mb_i_vlc, MSMP4_MB_INTRA_VLC_BITS, 64,
&ff_msmp4_mb_i_table[0][1], 4, 2,
&ff_msmp4_mb_i_table[0][0], 4, 2, 0);
}
av_cold void ff_msmp4_vc1_vlcs_init_once(void)
{
static AVOnce init_static_once = AV_ONCE_INIT;
ff_thread_once(&init_static_once, msmp4_vc1_vlcs_init);
}
/* intra picture macroblock coded block pattern */
const uint16_t ff_msmp4_mb_i_table[64][2] = {
{ 0x1, 1 }, { 0x17, 6 }, { 0x9, 5 }, { 0x5, 5 },
{ 0x6, 5 }, { 0x47, 9 }, { 0x20, 7 }, { 0x10, 7 },
{ 0x2, 5 }, { 0x7c, 9 }, { 0x3a, 7 }, { 0x1d, 7 },
{ 0x2, 6 }, { 0xec, 9 }, { 0x77, 8 }, { 0x0, 8 },
{ 0x3, 5 }, { 0xb7, 9 }, { 0x2c, 7 }, { 0x13, 7 },
{ 0x1, 6 }, { 0x168, 10 }, { 0x46, 8 }, { 0x3f, 8 },
{ 0x1e, 6 }, { 0x712, 13 }, { 0xb5, 9 }, { 0x42, 8 },
{ 0x22, 7 }, { 0x1c5, 11 }, { 0x11e, 10 }, { 0x87, 9 },
{ 0x6, 4 }, { 0x3, 9 }, { 0x1e, 7 }, { 0x1c, 6 },
{ 0x12, 7 }, { 0x388, 12 }, { 0x44, 9 }, { 0x70, 9 },
{ 0x1f, 6 }, { 0x23e, 11 }, { 0x39, 8 }, { 0x8e, 9 },
{ 0x1, 7 }, { 0x1c6, 11 }, { 0xb6, 9 }, { 0x45, 9 },
{ 0x14, 6 }, { 0x23f, 11 }, { 0x7d, 9 }, { 0x18, 9 },
{ 0x7, 7 }, { 0x1c7, 11 }, { 0x86, 9 }, { 0x19, 9 },
{ 0x15, 6 }, { 0x1db, 10 }, { 0x2, 9 }, { 0x46, 9 },
{ 0xd, 8 }, { 0x713, 13 }, { 0x1da, 10 }, { 0x169, 10 },
};
const uint32_t ff_msmp4_dc_tables[2][2][120][2] = {
{
/* dc table 0 */
{
{ 0x1, 1 }, { 0x1, 2 }, { 0x1, 4 }, { 0x1, 5 },
{ 0x5, 5 }, { 0x7, 5 }, { 0x8, 6 }, { 0xc, 6 },
{ 0x0, 7 }, { 0x2, 7 }, { 0x12, 7 }, { 0x1a, 7 },
{ 0x3, 8 }, { 0x7, 8 }, { 0x27, 8 }, { 0x37, 8 },
{ 0x5, 9 }, { 0x4c, 9 }, { 0x6c, 9 }, { 0x6d, 9 },
{ 0x8, 10 }, { 0x19, 10 }, { 0x9b, 10 }, { 0x1b, 10 },
{ 0x9a, 10 }, { 0x13, 11 }, { 0x34, 11 }, { 0x35, 11 },
{ 0x61, 12 }, { 0x48, 13 }, { 0xc4, 13 }, { 0x4a, 13 },
{ 0xc6, 13 }, { 0xc7, 13 }, { 0x92, 14 }, { 0x18b, 14 },
{ 0x93, 14 }, { 0x183, 14 }, { 0x182, 14 }, { 0x96, 14 },
{ 0x97, 14 }, { 0x180, 14 }, { 0x314, 15 }, { 0x315, 15 },
{ 0x605, 16 }, { 0x604, 16 }, { 0x606, 16 }, { 0xc0e, 17 },
{ 0x303cd, 23 }, { 0x303c9, 23 }, { 0x303c8, 23 }, { 0x303ca, 23 },
{ 0x303cb, 23 }, { 0x303cc, 23 }, { 0x303ce, 23 }, { 0x303cf, 23 },
{ 0x303d0, 23 }, { 0x303d1, 23 }, { 0x303d2, 23 }, { 0x303d3, 23 },
{ 0x303d4, 23 }, { 0x303d5, 23 }, { 0x303d6, 23 }, { 0x303d7, 23 },
{ 0x303d8, 23 }, { 0x303d9, 23 }, { 0x303da, 23 }, { 0x303db, 23 },
{ 0x303dc, 23 }, { 0x303dd, 23 }, { 0x303de, 23 }, { 0x303df, 23 },
{ 0x303e0, 23 }, { 0x303e1, 23 }, { 0x303e2, 23 }, { 0x303e3, 23 },
{ 0x303e4, 23 }, { 0x303e5, 23 }, { 0x303e6, 23 }, { 0x303e7, 23 },
{ 0x303e8, 23 }, { 0x303e9, 23 }, { 0x303ea, 23 }, { 0x303eb, 23 },
{ 0x303ec, 23 }, { 0x303ed, 23 }, { 0x303ee, 23 }, { 0x303ef, 23 },
{ 0x303f0, 23 }, { 0x303f1, 23 }, { 0x303f2, 23 }, { 0x303f3, 23 },
{ 0x303f4, 23 }, { 0x303f5, 23 }, { 0x303f6, 23 }, { 0x303f7, 23 },
{ 0x303f8, 23 }, { 0x303f9, 23 }, { 0x303fa, 23 }, { 0x303fb, 23 },
{ 0x303fc, 23 }, { 0x303fd, 23 }, { 0x303fe, 23 }, { 0x303ff, 23 },
{ 0x60780, 24 }, { 0x60781, 24 }, { 0x60782, 24 }, { 0x60783, 24 },
{ 0x60784, 24 }, { 0x60785, 24 }, { 0x60786, 24 }, { 0x60787, 24 },
{ 0x60788, 24 }, { 0x60789, 24 }, { 0x6078a, 24 }, { 0x6078b, 24 },
{ 0x6078c, 24 }, { 0x6078d, 24 }, { 0x6078e, 24 }, { 0x6078f, 24 },
},
{
{ 0x0, 2 }, { 0x1, 2 }, { 0x5, 3 }, { 0x9, 4 },
{ 0xd, 4 }, { 0x11, 5 }, { 0x1d, 5 }, { 0x1f, 5 },
{ 0x21, 6 }, { 0x31, 6 }, { 0x38, 6 }, { 0x33, 6 },
{ 0x39, 6 }, { 0x3d, 6 }, { 0x61, 7 }, { 0x79, 7 },
{ 0x80, 8 }, { 0xc8, 8 }, { 0xca, 8 }, { 0xf0, 8 },
{ 0x81, 8 }, { 0xc0, 8 }, { 0xc9, 8 }, { 0x107, 9 },
{ 0x106, 9 }, { 0x196, 9 }, { 0x183, 9 }, { 0x1e3, 9 },
{ 0x1e2, 9 }, { 0x20a, 10 }, { 0x20b, 10 }, { 0x609, 11 },
{ 0x412, 11 }, { 0x413, 11 }, { 0x60b, 11 }, { 0x411, 11 },
{ 0x60a, 11 }, { 0x65f, 11 }, { 0x410, 11 }, { 0x65d, 11 },
{ 0x65e, 11 }, { 0xcb8, 12 }, { 0xc10, 12 }, { 0xcb9, 12 },
{ 0x1823, 13 }, { 0x3045, 14 }, { 0x6089, 15 }, { 0xc110, 16 },
{ 0x304448, 22 }, { 0x304449, 22 }, { 0x30444a, 22 }, { 0x30444b, 22 },
{ 0x30444c, 22 }, { 0x30444d, 22 }, { 0x30444e, 22 }, { 0x30444f, 22 },
{ 0x304450, 22 }, { 0x304451, 22 }, { 0x304452, 22 }, { 0x304453, 22 },
{ 0x304454, 22 }, { 0x304455, 22 }, { 0x304456, 22 }, { 0x304457, 22 },
{ 0x304458, 22 }, { 0x304459, 22 }, { 0x30445a, 22 }, { 0x30445b, 22 },
{ 0x30445c, 22 }, { 0x30445d, 22 }, { 0x30445e, 22 }, { 0x30445f, 22 },
{ 0x304460, 22 }, { 0x304461, 22 }, { 0x304462, 22 }, { 0x304463, 22 },
{ 0x304464, 22 }, { 0x304465, 22 }, { 0x304466, 22 }, { 0x304467, 22 },
{ 0x304468, 22 }, { 0x304469, 22 }, { 0x30446a, 22 }, { 0x30446b, 22 },
{ 0x30446c, 22 }, { 0x30446d, 22 }, { 0x30446e, 22 }, { 0x30446f, 22 },
{ 0x304470, 22 }, { 0x304471, 22 }, { 0x304472, 22 }, { 0x304473, 22 },
{ 0x304474, 22 }, { 0x304475, 22 }, { 0x304476, 22 }, { 0x304477, 22 },
{ 0x304478, 22 }, { 0x304479, 22 }, { 0x30447a, 22 }, { 0x30447b, 22 },
{ 0x30447c, 22 }, { 0x30447d, 22 }, { 0x30447e, 22 }, { 0x30447f, 22 },
{ 0x608880, 23 }, { 0x608881, 23 }, { 0x608882, 23 }, { 0x608883, 23 },
{ 0x608884, 23 }, { 0x608885, 23 }, { 0x608886, 23 }, { 0x608887, 23 },
{ 0x608888, 23 }, { 0x608889, 23 }, { 0x60888a, 23 }, { 0x60888b, 23 },
{ 0x60888c, 23 }, { 0x60888d, 23 }, { 0x60888e, 23 }, { 0x60888f, 23 },
}
},
{
/* dc table 1 */
{
{ 0x2, 2 }, { 0x3, 2 }, { 0x3, 3 }, { 0x2, 4 },
{ 0x5, 4 }, { 0x1, 5 }, { 0x3, 5 }, { 0x8, 5 },
{ 0x0, 6 }, { 0x5, 6 }, { 0xd, 6 }, { 0xf, 6 },
{ 0x13, 6 }, { 0x8, 7 }, { 0x18, 7 }, { 0x1c, 7 },
{ 0x24, 7 }, { 0x4, 8 }, { 0x6, 8 }, { 0x12, 8 },
{ 0x32, 8 }, { 0x3b, 8 }, { 0x4a, 8 }, { 0x4b, 8 },
{ 0xb, 9 }, { 0x26, 9 }, { 0x27, 9 }, { 0x66, 9 },
{ 0x74, 9 }, { 0x75, 9 }, { 0x14, 10 }, { 0x1c, 10 },
{ 0x1f, 10 }, { 0x1d, 10 }, { 0x2b, 11 }, { 0x3d, 11 },
{ 0x19d, 11 }, { 0x19f, 11 }, { 0x54, 12 }, { 0x339, 12 },
{ 0x338, 12 }, { 0x33d, 12 }, { 0xab, 13 }, { 0xf1, 13 },
{ 0x678, 13 }, { 0xf2, 13 }, { 0x1e0, 14 }, { 0x1e1, 14 },
{ 0x154, 14 }, { 0xcf2, 14 }, { 0x3cc, 15 }, { 0x2ab, 15 },
{ 0x19e7, 15 }, { 0x3ce, 15 }, { 0x19e6, 15 }, { 0x554, 16 },
{ 0x79f, 16 }, { 0x555, 16 }, { 0xf3d, 17 }, { 0xf37, 17 },
{ 0xf3c, 17 }, { 0xf35, 17 }, { 0x1e6d, 18 }, { 0x1e68, 18 },
{ 0x3cd8, 19 }, { 0x3cd3, 19 }, { 0x3cd9, 19 }, { 0x79a4, 20 },
{ 0xf34ba, 25 }, { 0xf34b4, 25 }, { 0xf34b5, 25 }, { 0xf34b6, 25 },
{ 0xf34b7, 25 }, { 0xf34b8, 25 }, { 0xf34b9, 25 }, { 0xf34bb, 25 },
{ 0xf34bc, 25 }, { 0xf34bd, 25 }, { 0xf34be, 25 }, { 0xf34bf, 25 },
{ 0x1e6940, 26 }, { 0x1e6941, 26 }, { 0x1e6942, 26 }, { 0x1e6943, 26 },
{ 0x1e6944, 26 }, { 0x1e6945, 26 }, { 0x1e6946, 26 }, { 0x1e6947, 26 },
{ 0x1e6948, 26 }, { 0x1e6949, 26 }, { 0x1e694a, 26 }, { 0x1e694b, 26 },
{ 0x1e694c, 26 }, { 0x1e694d, 26 }, { 0x1e694e, 26 }, { 0x1e694f, 26 },
{ 0x1e6950, 26 }, { 0x1e6951, 26 }, { 0x1e6952, 26 }, { 0x1e6953, 26 },
{ 0x1e6954, 26 }, { 0x1e6955, 26 }, { 0x1e6956, 26 }, { 0x1e6957, 26 },
{ 0x1e6958, 26 }, { 0x1e6959, 26 }, { 0x1e695a, 26 }, { 0x1e695b, 26 },
{ 0x1e695c, 26 }, { 0x1e695d, 26 }, { 0x1e695e, 26 }, { 0x1e695f, 26 },
{ 0x1e6960, 26 }, { 0x1e6961, 26 }, { 0x1e6962, 26 }, { 0x1e6963, 26 },
{ 0x1e6964, 26 }, { 0x1e6965, 26 }, { 0x1e6966, 26 }, { 0x1e6967, 26 },
},
{
{ 0x0, 2 }, { 0x1, 2 }, { 0x4, 3 }, { 0x7, 3 },
{ 0xb, 4 }, { 0xd, 4 }, { 0x15, 5 }, { 0x28, 6 },
{ 0x30, 6 }, { 0x32, 6 }, { 0x52, 7 }, { 0x62, 7 },
{ 0x66, 7 }, { 0xa6, 8 }, { 0xc6, 8 }, { 0xcf, 8 },
{ 0x14f, 9 }, { 0x18e, 9 }, { 0x19c, 9 }, { 0x29d, 10 },
{ 0x33a, 10 }, { 0x538, 11 }, { 0x63c, 11 }, { 0x63e, 11 },
{ 0x63f, 11 }, { 0x676, 11 }, { 0xa73, 12 }, { 0xc7a, 12 },
{ 0xcef, 12 }, { 0x14e5, 13 }, { 0x19dd, 13 }, { 0x29c8, 14 },
{ 0x29c9, 14 }, { 0x63dd, 15 }, { 0x33b8, 14 }, { 0x33b9, 14 },
{ 0xc7b6, 16 }, { 0x63d8, 15 }, { 0x63df, 15 }, { 0xc7b3, 16 },
{ 0xc7b4, 16 }, { 0xc7b5, 16 }, { 0x63de, 15 }, { 0xc7b7, 16 },
{ 0xc7b8, 16 }, { 0xc7b9, 16 }, { 0x18f65, 17 }, { 0x31ec8, 18 },
{ 0xc7b248, 24 }, { 0xc7b249, 24 }, { 0xc7b24a, 24 }, { 0xc7b24b, 24 },
{ 0xc7b24c, 24 }, { 0xc7b24d, 24 }, { 0xc7b24e, 24 }, { 0xc7b24f, 24 },
{ 0xc7b250, 24 }, { 0xc7b251, 24 }, { 0xc7b252, 24 }, { 0xc7b253, 24 },
{ 0xc7b254, 24 }, { 0xc7b255, 24 }, { 0xc7b256, 24 }, { 0xc7b257, 24 },
{ 0xc7b258, 24 }, { 0xc7b259, 24 }, { 0xc7b25a, 24 }, { 0xc7b25b, 24 },
{ 0xc7b25c, 24 }, { 0xc7b25d, 24 }, { 0xc7b25e, 24 }, { 0xc7b25f, 24 },
{ 0xc7b260, 24 }, { 0xc7b261, 24 }, { 0xc7b262, 24 }, { 0xc7b263, 24 },
{ 0xc7b264, 24 }, { 0xc7b265, 24 }, { 0xc7b266, 24 }, { 0xc7b267, 24 },
{ 0xc7b268, 24 }, { 0xc7b269, 24 }, { 0xc7b26a, 24 }, { 0xc7b26b, 24 },
{ 0xc7b26c, 24 }, { 0xc7b26d, 24 }, { 0xc7b26e, 24 }, { 0xc7b26f, 24 },
{ 0xc7b270, 24 }, { 0xc7b271, 24 }, { 0xc7b272, 24 }, { 0xc7b273, 24 },
{ 0xc7b274, 24 }, { 0xc7b275, 24 }, { 0xc7b276, 24 }, { 0xc7b277, 24 },
{ 0xc7b278, 24 }, { 0xc7b279, 24 }, { 0xc7b27a, 24 }, { 0xc7b27b, 24 },
{ 0xc7b27c, 24 }, { 0xc7b27d, 24 }, { 0xc7b27e, 24 }, { 0xc7b27f, 24 },
{ 0x18f6480, 25 }, { 0x18f6481, 25 }, { 0x18f6482, 25 }, { 0x18f6483, 25 },
{ 0x18f6484, 25 }, { 0x18f6485, 25 }, { 0x18f6486, 25 }, { 0x18f6487, 25 },
{ 0x18f6488, 25 }, { 0x18f6489, 25 }, { 0x18f648a, 25 }, { 0x18f648b, 25 },
{ 0x18f648c, 25 }, { 0x18f648d, 25 }, { 0x18f648e, 25 }, { 0x18f648f, 25 },
}
}
};
const uint8_t ff_wmv1_scantable[WMV1_SCANTABLE_COUNT][64] = {
{ 0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11,
0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28,
0x30, 0x38, 0x29, 0x21, 0x1A, 0x13, 0x0C, 0x05,
0x06, 0x0D, 0x14, 0x1B, 0x22, 0x31, 0x39, 0x3A,
0x32, 0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F,
0x16, 0x1D, 0x24, 0x2B, 0x33, 0x3B, 0x3C, 0x34,
0x2C, 0x25, 0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x35,
0x3D, 0x3E, 0x36, 0x2E, 0x27, 0x2F, 0x37, 0x3F, },
{ 0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11,
0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28,
0x21, 0x30, 0x1A, 0x13, 0x0C, 0x05, 0x06, 0x0D,
0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39, 0x2A,
0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F, 0x16, 0x1D,
0x24, 0x2B, 0x32, 0x3A, 0x33, 0x3B, 0x2C, 0x25,
0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3C, 0x35,
0x3D, 0x2E, 0x27, 0x2F, 0x36, 0x3E, 0x37, 0x3F, },
{ 0x00, 0x01, 0x08, 0x02, 0x03, 0x09, 0x10, 0x18,
0x11, 0x0A, 0x04, 0x05, 0x0B, 0x12, 0x19, 0x20,
0x28, 0x30, 0x21, 0x1A, 0x13, 0x0C, 0x06, 0x07,
0x0D, 0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39,
0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x0F, 0x16, 0x1D,
0x24, 0x2B, 0x32, 0x3A, 0x33, 0x2C, 0x25, 0x1E,
0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3B, 0x3C, 0x35,
0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, },
{ 0x00, 0x08, 0x10, 0x01, 0x18, 0x20, 0x28, 0x09,
0x02, 0x03, 0x0A, 0x11, 0x19, 0x30, 0x38, 0x29,
0x21, 0x1A, 0x12, 0x0B, 0x04, 0x05, 0x0C, 0x13,
0x1B, 0x22, 0x31, 0x39, 0x32, 0x2A, 0x23, 0x1C,
0x14, 0x0D, 0x06, 0x07, 0x0E, 0x15, 0x1D, 0x24,
0x2B, 0x33, 0x3A, 0x3B, 0x34, 0x2C, 0x25, 0x1E,
0x16, 0x0F, 0x17, 0x1F, 0x26, 0x2D, 0x3C, 0x35,
0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, }
};