blob: 675251a836654869a78c5a8c83ac69a711d7497b
| 1 | /* |
| 2 | * Helpers for generating hard-coded VLC tables |
| 3 | * |
| 4 | * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #ifndef AVCODEC_TABLEPRINT_VLC_H |
| 24 | #define AVCODEC_TABLEPRINT_VLC_H |
| 25 | |
| 26 | #define FFMPEG_CONFIG_H |
| 27 | #define AVUTIL_LOG_H |
| 28 | #define av_log(a, ...) while(0) |
| 29 | #define ff_dlog(a, ...) while(0) |
| 30 | #define AVUTIL_MEM_H |
| 31 | #define av_malloc(s) NULL |
| 32 | #define av_malloc_array(a, b) NULL |
| 33 | #define av_realloc_f(p, o, n) NULL |
| 34 | #define av_free(p) while(0) |
| 35 | #define av_freep(p) while(0) |
| 36 | #define AVCODEC_AVCODEC_H |
| 37 | #define AVCODEC_INTERNAL_H |
| 38 | #include "tableprint.h" |
| 39 | #include "get_bits.h" |
| 40 | #include "mathtables.c" |
| 41 | #include "libavutil/reverse.c" |
| 42 | #include "bitstream.c" |
| 43 | |
| 44 | #define REPLACE_DEFINE2(type) write_##type##_array |
| 45 | #define REPLACE_DEFINE(type) REPLACE_DEFINE2(type) |
| 46 | static void write_VLC_TYPE_array(const VLC_TYPE *p, int s) { |
| 47 | REPLACE_DEFINE(VLC_TYPE)(p, s); |
| 48 | } |
| 49 | |
| 50 | WRITE_2D_FUNC(VLC_TYPE) |
| 51 | |
| 52 | static void write_vlc_type(const VLC *vlc, VLC_TYPE (*base_table)[2], const char *base_table_name) |
| 53 | { |
| 54 | printf(" .bits = %i,\n", vlc->bits); |
| 55 | // Unfortunately need to cast away const currently |
| 56 | printf(" .table = (VLC_TYPE (*)[2])(%s + 0x%x),\n", base_table_name, (int)(vlc->table - base_table)); |
| 57 | printf(" .table_size = 0x%x,\n", vlc->table_size); |
| 58 | printf(" .table_allocated = 0x%x,\n", vlc->table_allocated); |
| 59 | } |
| 60 | |
| 61 | #define WRITE_VLC_TYPE(prefix, name, base_table) \ |
| 62 | do { \ |
| 63 | printf(prefix" VLC "#name" = {\n"); \ |
| 64 | write_vlc_type(&name, base_table, #base_table); \ |
| 65 | printf("};\n"); \ |
| 66 | } while(0) |
| 67 | |
| 68 | #define WRITE_VLC_ARRAY(prefix, name, base_table) \ |
| 69 | do { \ |
| 70 | int i; \ |
| 71 | const size_t array_size = FF_ARRAY_ELEMS(name); \ |
| 72 | printf(prefix" VLC "#name"[%"FMT"] = {{\n", \ |
| 73 | array_size); \ |
| 74 | for (i = 0; i < array_size; i++) { \ |
| 75 | write_vlc_type(name + i, \ |
| 76 | base_table, #base_table); \ |
| 77 | if (i != array_size - 1) printf("}, {\n"); \ |
| 78 | } \ |
| 79 | printf("}};\n"); \ |
| 80 | } while(0) |
| 81 | |
| 82 | #endif /* AVCODEC_TABLEPRINT_VLC_H */ |
| 83 |