mirror of https://github.com/FFmpeg/FFmpeg.git
Also adds a lot of infrastructure necessary for it. Some of it is a bit ugly though. Increases binary size for hardcoded tables by about 12 kB, which is about 15 kB from qdm2_table minus data and code saved that was only used for creating it. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>pull/101/head
Reimar Döffinger
10 years ago
parent
de6d44829c
commit
70d80ed40f
5 changed files with 265 additions and 166 deletions
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/*
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* Helpers for generating hard-coded VLC tables |
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* |
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* Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de> |
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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_TABLEPRINT_VLC_H |
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#define AVCODEC_TABLEPRINT_VLC_H |
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#define FFMPEG_CONFIG_H |
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#define AVUTIL_LOG_H |
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#define av_log(a, ...) |
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#define av_dlog(a, ...) |
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#define AVUTIL_MEM_H |
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#define av_malloc(s) NULL |
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#define av_malloc_array(a, b) NULL |
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#define av_realloc_f(p, o, n) NULL |
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#define av_free(p) |
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#define av_freep(p) |
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#define AVCODEC_AVCODEC_H |
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#include "tableprint.h" |
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#include "get_bits.h" |
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#include "mathtables.c" |
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#include "bitstream.c" |
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#define REPLACE_DEFINE2(type) write_##type##_array |
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#define REPLACE_DEFINE(type) REPLACE_DEFINE2(type) |
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static void write_VLC_TYPE_array(const VLC_TYPE *p, int s) { |
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REPLACE_DEFINE(VLC_TYPE)(p, s); |
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} |
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WRITE_2D_FUNC(VLC_TYPE) |
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static void write_vlc_type(const VLC *vlc, VLC_TYPE (*base_table)[2], const char *base_table_name) |
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{ |
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printf(" .bits = %i,\n", vlc->bits); |
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// Unfortunately need to cast away const currently
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printf(" .table = (VLC_TYPE (*)[2])(%s + 0x%x),\n", base_table_name, (int)(vlc->table - base_table)); |
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printf(" .table_size = 0x%x,\n", vlc->table_size); |
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printf(" .table_allocated = 0x%x,\n", vlc->table_allocated); |
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} |
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#define WRITE_VLC_TYPE(prefix, name, base_table) \ |
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do { \
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printf(prefix" VLC "#name" = {\n"); \
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write_vlc_type(&name, base_table, #base_table); \
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printf("};\n"); \
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} while(0) |
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#define WRITE_VLC_ARRAY(prefix, name, base_table) \ |
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do { \
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int i; \
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const size_t array_size = FF_ARRAY_ELEMS(name); \
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printf(prefix" VLC "#name"[%"FMT"] = {{\n", \
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array_size); \
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for (i = 0; i < array_size; i++) { \
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write_vlc_type(name + i, \
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base_table, #base_table); \
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if (i != array_size - 1) printf("}, {\n"); \
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} \
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printf("}};\n"); \
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} while(0) |
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#endif /* AVCODEC_TABLEPRINT_VLC_H */ |
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