1 files changed, 110 insertions, 0 deletions
diff --git a/mpeglib/lib/mpegplay/decoderTables.h b/mpeglib/lib/mpegplay/decoderTables.h
new file mode 100644
index 00000000..00b9b4f2
--- /dev/null
+++ b/mpeglib/lib/mpegplay/decoderTables.h
@@ -0,0 +1,110 @@
+/*
+  declares various tables to make things faster
+  Copyright (C) 1999  Martin Vogt
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Library General Public License as published by
+  the Free Software Foundation.
+
+  For more information look at the file COPYRIGHT in this package
+
+ */
+
+
+
+#ifndef __DECODERTABLES_H
+#define __DECODERTABLES_H
+
+#include "videoDecoder.h"
+#include "proto.h"
+
+/* Code for unbound values in decoding tables */
+#define MPGDECODE_ERROR (-1)
+
+#define MACRO_BLOCK_STUFFING 34
+#define MACRO_BLOCK_ESCAPE 35
+
+
+/* Structure for an entry in the decoding table of 
+ * macroblock_address_increment */
+typedef struct {
+  int value;       /* value for macroblock_address_increment */
+  int num_bits;             /* length of the Huffman code */
+} mb_addr_inc_entry;
+
+
+/* Structure for an entry in the decoding table of macroblock_type */
+typedef struct {
+  unsigned int mb_quant;              /* macroblock_quant */
+  unsigned int mb_motion_forward;     /* macroblock_motion_forward */
+  unsigned int mb_motion_backward;    /* macroblock_motion_backward */
+  unsigned int mb_pattern;            /* macroblock_pattern */
+  unsigned int mb_intra;              /* macroblock_intra */
+  unsigned int num_bits;              /* length of the Huffman code */
+} mb_type_entry;
+
+
+/* Structures for an entry in the decoding table of coded_block_pattern */
+typedef struct {
+  unsigned int cbp;            /* coded_block_pattern */
+  int num_bits;                /* length of the Huffman code */
+} coded_block_pattern_entry;
+
+
+/* Structure for an entry in the decoding table of motion vectors */
+typedef struct {
+  int code;              /* value for motion_horizontal_forward_code,
+			  * motion_vertical_forward_code, 
+			  * motion_horizontal_backward_code, or
+			  * motion_vertical_backward_code.
+			  */
+  int num_bits;          /* length of the Huffman code */
+} motion_vectors_entry;
+
+
+/* Structure for an entry in the decoding table of dct_dc_size */
+typedef struct {
+  unsigned int value;    /* value of dct_dc_size (luminance or chrominance) */
+  int num_bits;          /* length of the Huffman code */
+} dct_dc_size_entry;
+
+
+
+/* External declaration of dct coeff tables. */
+
+extern unsigned short int dct_coeff_tbl_0[256];
+extern unsigned short int dct_coeff_tbl_1[16];
+extern unsigned short int dct_coeff_tbl_2[4];
+extern unsigned short int dct_coeff_tbl_3[4];
+extern unsigned short int dct_coeff_next[256];
+extern unsigned short int dct_coeff_first[256];
+
+/* External declaration of dct dc size lumiance table. */
+
+extern dct_dc_size_entry dct_dc_size_luminance[32];
+extern dct_dc_size_entry dct_dc_size_luminance1[16];
+
+/* External declaration of dct dc size chrom table. */
+
+extern dct_dc_size_entry dct_dc_size_chrominance[32];
+extern dct_dc_size_entry dct_dc_size_chrominance1[32];
+
+/* External declaration of coded block pattern table. */
+
+extern coded_block_pattern_entry coded_block_pattern[512];
+
+/* Decoding table for macroblock_type in predictive-coded pictures */
+extern mb_type_entry mb_type_P[64];
+
+/* Decoding table for macroblock_type in bidirectionally-coded pictures */
+extern mb_type_entry mb_type_B[64];
+
+/* Decoding table for macroblock_address_increment */
+extern mb_addr_inc_entry mb_addr_inc[2048];
+
+/* Decoding table for motion vectors */
+extern motion_vectors_entry motion_vectors[2048];
+
+extern void init_tables();
+
+#endif