X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fhuffman.h;h=043e6e399136dc1966c1abc84da737bb871f252d;hb=3d8c80b611aa1e2f800dd9c8d8f350407f95c042;hp=594013e0bb07490eee3e2684ff17bd15f532899c;hpb=bad5537e2c2caeb5deb1ff9d771ea01058b8010c;p=ffmpeg diff --git a/libavcodec/huffman.h b/libavcodec/huffman.h index 594013e0bb0..043e6e39913 100644 --- a/libavcodec/huffman.h +++ b/libavcodec/huffman.h @@ -1,32 +1,35 @@ -/** - * @file libavcodec/huffman.h - * huffman tree builder and VLC generator +/* * Copyright (C) 2007 Aurelien Jacobs * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +/** + * @file + * huffman tree builder and VLC generator + */ + #ifndef AVCODEC_HUFFMAN_H #define AVCODEC_HUFFMAN_H #include "avcodec.h" -#include "bitstream.h" +#include "get_bits.h" -typedef struct { +typedef struct Node { int16_t sym; int16_t n0; uint32_t count; @@ -39,4 +42,6 @@ typedef int (*HuffCmp)(const void *va, const void *vb); int ff_huff_build_tree(AVCodecContext *avctx, VLC *vlc, int nb_codes, Node *nodes, HuffCmp cmp, int flags); +void ff_huff_gen_len_table(uint8_t *dst, const uint64_t *stats); + #endif /* AVCODEC_HUFFMAN_H */