From 91b126573702ac2689462d857958a9a7579956b0 Mon Sep 17 00:00:00 2001
From: Loren Merritt <pengvado@akuvian.org>
Date: Fri, 21 Mar 2008 23:24:33 -0600
Subject: [PATCH] remove unused bitstream reader

---
 common/bs.h     | 123 ------------------------------------------------
 common/common.h |   8 ----
 2 files changed, 131 deletions(-)

diff --git a/common/bs.h b/common/bs.h
index 51772ae5..fa4002dd 100644
--- a/common/bs.h
+++ b/common/bs.h
@@ -47,127 +47,6 @@ static inline int bs_pos( bs_t *s )
 {
     return( 8 * ( s->p - s->p_start ) + 8 - s->i_left );
 }
-static inline int bs_eof( bs_t *s )
-{
-    return( s->p >= s->p_end ? 1: 0 );
-}
-static inline uint32_t bs_read( bs_t *s, int i_count )
-{
-     static uint32_t i_mask[33] ={0x00,
-                                  0x01,      0x03,      0x07,      0x0f,
-                                  0x1f,      0x3f,      0x7f,      0xff,
-                                  0x1ff,     0x3ff,     0x7ff,     0xfff,
-                                  0x1fff,    0x3fff,    0x7fff,    0xffff,
-                                  0x1ffff,   0x3ffff,   0x7ffff,   0xfffff,
-                                  0x1fffff,  0x3fffff,  0x7fffff,  0xffffff,
-                                  0x1ffffff, 0x3ffffff, 0x7ffffff, 0xfffffff,
-                                  0x1fffffff,0x3fffffff,0x7fffffff,0xffffffff};
-    int      i_shr;
-    uint32_t i_result = 0;
-
-    while( i_count > 0 )
-    {
-        if( s->p >= s->p_end )
-        {
-            break;
-        }
-
-        if( ( i_shr = s->i_left - i_count ) >= 0 )
-        {
-            /* more in the buffer than requested */
-            i_result |= ( *s->p >> i_shr )&i_mask[i_count];
-            s->i_left -= i_count;
-            if( s->i_left == 0 )
-            {
-                s->p++;
-                s->i_left = 8;
-            }
-            return( i_result );
-        }
-        else
-        {
-            /* less in the buffer than requested */
-           i_result |= (*s->p&i_mask[s->i_left]) << -i_shr;
-           i_count  -= s->i_left;
-           s->p++;
-           s->i_left = 8;
-        }
-    }
-
-    return( i_result );
-}
-
-static inline uint32_t bs_read1( bs_t *s )
-{
-
-    if( s->p < s->p_end )
-    {
-        unsigned int i_result;
-
-        s->i_left--;
-        i_result = ( *s->p >> s->i_left )&0x01;
-        if( s->i_left == 0 )
-        {
-            s->p++;
-            s->i_left = 8;
-        }
-        return i_result;
-    }
-
-    return 0;
-}
-static inline uint32_t bs_show( bs_t *s, int i_count )
-{
-    if( s->p < s->p_end && i_count > 0 )
-    {
-        uint32_t i_cache = ((s->p[0] << 24)+(s->p[1] << 16)+(s->p[2] << 8)+s->p[3]) << (8-s->i_left);
-        return( i_cache >> ( 32 - i_count) );
-    }
-    return 0;
-}
-
-/* TODO optimize */
-static inline void bs_skip( bs_t *s, int i_count )
-{
-    s->i_left -= i_count;
-
-    while( s->i_left <= 0 )
-    {
-        s->p++;
-        s->i_left += 8;
-    }
-}
-
-
-static inline int bs_read_ue( bs_t *s )
-{
-    int i = 0;
-
-    while( bs_read1( s ) == 0 && s->p < s->p_end && i < 32 )
-    {
-        i++;
-    }
-    return( ( 1 << i) - 1 + bs_read( s, i ) );
-}
-static inline int bs_read_se( bs_t *s )
-{
-    int val = bs_read_ue( s );
-
-    return val&0x01 ? (val+1)/2 : -(val/2);
-}
-
-static inline int bs_read_te( bs_t *s, int x )
-{
-    if( x == 1 )
-    {
-        return 1 - bs_read1( s );
-    }
-    else if( x > 1 )
-    {
-        return bs_read_ue( s );
-    }
-    return 0;
-}
 
 static inline void bs_write( bs_t *s, int i_count, uint32_t i_bits )
 {
@@ -361,6 +240,4 @@ static inline int bs_size_te( int x, int val )
     return 0;
 }
 
-
-
 #endif
diff --git a/common/common.h b/common/common.h
index fc3d281a..eace850c 100644
--- a/common/common.h
+++ b/common/common.h
@@ -229,7 +229,6 @@ static const int x264_scan8[16+2*4] =
 */
 
 typedef struct x264_ratecontrol_t   x264_ratecontrol_t;
-typedef struct x264_vlc_table_t     x264_vlc_table_t;
 
 struct x264_t
 {
@@ -575,13 +574,6 @@ struct x264_t
     x264_quant_function_t quantf;
     x264_deblock_function_t loopf;
 
-    /* vlc table for decoding purpose only */
-    x264_vlc_table_t *x264_coeff_token_lookup[5];
-    x264_vlc_table_t *x264_level_prefix_lookup;
-    x264_vlc_table_t *x264_total_zeros_lookup[15];
-    x264_vlc_table_t *x264_total_zeros_dc_lookup[3];
-    x264_vlc_table_t *x264_run_before_lookup[7];
-
 #if VISUALIZE
     struct visualize_t *visualize;
 #endif
-- 
2.40.0