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FFmpeg/libavcodec/msmpeg4data.h
Andreas Rheinhardt 967f8a924e avcodec/msmpeg4enc: Avoid using MVTable
Switch to using the length+symbol table combination that is
also used by the decoder and remove MVTable as well as
the old tables altogether.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2025-03-26 03:39:01 +01:00

69 lines
2.2 KiB
C

/*
* MSMPEG4 backend for encoder and decoder
* 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
* MSMPEG4 data tables.
*/
#ifndef AVCODEC_MSMPEG4DATA_H
#define AVCODEC_MSMPEG4DATA_H
#include <stdint.h>
#include "libavutil/attributes_internal.h"
#include "rl.h"
FF_VISIBILITY_PUSH_HIDDEN
#define NB_RL_TABLES 6
extern RLTable ff_rl_table[NB_RL_TABLES];
extern uint32_t ff_v2_dc_lum_table[512][2];
extern uint32_t ff_v2_dc_chroma_table[512][2];
extern const uint8_t ff_wmv1_y_dc_scale_table[32];
extern const uint8_t ff_wmv1_c_dc_scale_table[32];
extern const uint8_t ff_old_ff_y_dc_scale_table[32];
#define MSMPEG4_MV_TABLES_NB_ELEMS 1100
/// The entries are of the form (8 << mvx) | mvy. Escape value is zero.
extern const uint16_t ff_msmp4_mv_table0[MSMPEG4_MV_TABLES_NB_ELEMS];
extern const uint8_t ff_msmp4_mv_table0_lens[MSMPEG4_MV_TABLES_NB_ELEMS];
extern const uint16_t ff_msmp4_mv_table1[MSMPEG4_MV_TABLES_NB_ELEMS];
extern const uint8_t ff_msmp4_mv_table1_lens[MSMPEG4_MV_TABLES_NB_ELEMS];
extern const uint8_t ff_v2_mb_type[8][2];
extern const uint8_t ff_v2_intra_cbpc[4][2];
extern const uint32_t ff_table_mb_non_intra[128][2];
extern const uint8_t ff_table_inter_intra[4][2];
#define WMV2_INTER_CBP_TABLE_COUNT 4
extern const uint32_t (* const ff_wmv2_inter_table[WMV2_INTER_CBP_TABLE_COUNT])[2];
FF_VISIBILITY_POP_HIDDEN
#endif /* AVCODEC_MSMPEG4DATA_H */