libavcodec/tableprint_vlc.h
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 /*
  * Helpers for generating hard-coded VLC tables
  *
  * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
  *
  * 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
  */
 
 #ifndef AVCODEC_TABLEPRINT_VLC_H
 #define AVCODEC_TABLEPRINT_VLC_H
 
 #define FFMPEG_CONFIG_H
 #define AVUTIL_LOG_H
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 #define av_log(a, ...) while(0)
 #define ff_dlog(a, ...) while(0)
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 #define AVUTIL_MEM_H
 #define av_malloc(s) NULL
 #define av_malloc_array(a, b) NULL
 #define av_realloc_f(p, o, n) NULL
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 #define av_free(p) while(0)
 #define av_freep(p) while(0)
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 #define AVCODEC_AVCODEC_H
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 #define AVCODEC_INTERNAL_H
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 #define AV_INPUT_BUFFER_PADDING_SIZE 64 // the value does not matter for this
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 #include "tableprint.h"
 #include "get_bits.h"
 #include "mathtables.c"
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 #include "libavutil/reverse.c"
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 #include "bitstream.c"
 
 #define REPLACE_DEFINE2(type) write_##type##_array
 #define REPLACE_DEFINE(type) REPLACE_DEFINE2(type)
 static void write_VLC_TYPE_array(const VLC_TYPE *p, int s) {
     REPLACE_DEFINE(VLC_TYPE)(p, s);
 }
 
 WRITE_2D_FUNC(VLC_TYPE)
 
 static void write_vlc_type(const VLC *vlc, VLC_TYPE (*base_table)[2], const char *base_table_name)
 {
     printf("    .bits = %i,\n", vlc->bits);
     // Unfortunately need to cast away const currently
     printf("    .table = (VLC_TYPE (*)[2])(%s + 0x%x),\n", base_table_name, (int)(vlc->table - base_table));
     printf("    .table_size = 0x%x,\n", vlc->table_size);
     printf("    .table_allocated = 0x%x,\n", vlc->table_allocated);
 }
 
 #define WRITE_VLC_TYPE(prefix, name, base_table)        \
     do {                                                \
         printf(prefix" VLC "#name" = {\n");             \
         write_vlc_type(&name, base_table, #base_table); \
         printf("};\n");                                 \
     } while(0)
 
 #define WRITE_VLC_ARRAY(prefix, name, base_table)       \
     do {                                                \
         int i;                                          \
         const size_t array_size = FF_ARRAY_ELEMS(name); \
         printf(prefix" VLC "#name"[%"FMT"] = {{\n",     \
                array_size);                             \
         for (i = 0; i < array_size; i++) {              \
             write_vlc_type(name + i,                    \
                            base_table, #base_table);    \
             if (i != array_size - 1) printf("}, {\n");  \
         }                                               \
         printf("}};\n");                                \
     } while(0)
 
 #endif /* AVCODEC_TABLEPRINT_VLC_H */