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43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
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* Copyright (C) 2016 Open Broadcast Systems Ltd.
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* Author (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
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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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#ifndef AVCODEC_DIRACTAB_H
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#define AVCODEC_DIRACTAB_H
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#include <stdint.h>
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/* Tables here are shared between the Dirac/VC-2 decoder and the VC-2 encoder */
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/* Default quantization tables for each wavelet transform */
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extern const uint8_t ff_dirac_default_qmat[7][4][4];
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/* Scaling factors needed for quantization/dequantization */
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extern const int32_t ff_dirac_qscale_tab[116];
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/* Scaling offsets needed for quantization/dequantization, for intra frames */
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extern const int32_t ff_dirac_qoffset_intra_tab[120];
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/* Scaling offsets needed for quantization/dequantization, for inter frames */
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extern const int ff_dirac_qoffset_inter_tab[122];
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#define DIRAC_MAX_QUANT_INDEX (FF_ARRAY_ELEMS(ff_dirac_qscale_tab))
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#endif /* AVCODEC_DIRACTAB_H */
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