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61fe481586
Up until now, ff_h263_rl_inter was initialized by both ituh263dec and ituh263enc; this is an obstacle in making the codecs that use this code init-threadsafe. This obstacle is eliminated by only initializing this RLTable from a single place that is guarded by a dedicated AVOnce. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* copyright (c) 2000,2001 Fabrice Bellard
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* H.263+ support
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* copyright (c) 2001 Juan J. Sierralta P
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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
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* H.263 tables.
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*/
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#ifndef AVCODEC_H263DATA_H
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#define AVCODEC_H263DATA_H
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#include <stdint.h>
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#include "libavutil/rational.h"
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#include "rl.h"
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extern const AVRational ff_h263_pixel_aspect[16];
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/* intra MCBPC, mb_type = (intra), then (intraq) */
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extern const uint8_t ff_h263_intra_MCBPC_code[9];
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extern const uint8_t ff_h263_intra_MCBPC_bits[9];
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/* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
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/* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */
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extern const uint8_t ff_h263_inter_MCBPC_code[28];
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extern const uint8_t ff_h263_inter_MCBPC_bits[28];
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extern const uint8_t ff_h263_mbtype_b_tab[15][2];
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extern const uint8_t ff_cbpc_b_tab[4][2];
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extern const uint8_t ff_h263_cbpy_tab[16][2];
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extern const uint8_t ff_mvtab[33][2];
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/* third non intra table */
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extern const uint16_t ff_inter_vlc[103][2];
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extern const int8_t ff_inter_level[102];
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extern const int8_t ff_inter_run[102];
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extern RLTable ff_h263_rl_inter;
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extern RLTable ff_rl_intra_aic;
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void ff_h263_init_rl_inter(void);
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extern const uint16_t ff_h263_format[8][2];
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extern const uint8_t ff_aic_dc_scale_table[32];
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extern const uint8_t ff_modified_quant_tab[2][32];
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extern const uint8_t ff_h263_chroma_qscale_table[32];
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extern const uint16_t ff_mba_max[6];
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extern const uint8_t ff_mba_length[7];
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#endif /* AVCODEC_H263DATA_H */
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