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62 lines
1.6 KiB
62 lines
1.6 KiB
/* |
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* Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* see https://multimedia.cx/huffyuv.txt for a description of |
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* the algorithm used |
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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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* huffyuv codec for libavcodec. |
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*/ |
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#ifndef AVCODEC_HUFFYUV_H |
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#define AVCODEC_HUFFYUV_H |
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#include <stdint.h> |
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#include "config.h" |
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#if HAVE_BIGENDIAN |
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#define B 3 |
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#define G 2 |
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#define R 1 |
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#define A 0 |
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#else |
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#define B 0 |
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#define G 1 |
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#define R 2 |
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#define A 3 |
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#endif |
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#define MAX_BITS 16 |
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#define MAX_N (1<<MAX_BITS) |
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#define MAX_VLC_N 16384 |
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typedef enum Predictor { |
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LEFT = 0, |
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PLANE, |
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MEDIAN, |
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} Predictor; |
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void ff_huffyuv_common_end(uint8_t *temp[3], uint16_t *temp16[3]); |
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int ff_huffyuv_alloc_temp(uint8_t *temp[3], uint16_t *temp16[3], int width); |
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int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table, int n); |
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#endif /* AVCODEC_HUFFYUV_H */
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