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