intrax8 decoder patch by "someone"

Originally committed as revision 10971 to svn://svn.ffmpeg.org/ffmpeg/trunk

12 files changed, 2345 insertions, 13 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 804b23cf2e..242306530f 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -188,7 +188,7 @@ OBJS-$(CONFIG_TTA_DECODER)             += tta.o
 OBJS-$(CONFIG_TXD_DECODER)             += txd.o s3tc.o
 OBJS-$(CONFIG_ULTI_DECODER)            += ulti.o
 OBJS-$(CONFIG_VB_DECODER)              += vb.o
-OBJS-$(CONFIG_VC1_DECODER)             += vc1.o vc1data.o vc1dsp.o msmpeg4data.o
+OBJS-$(CONFIG_VC1_DECODER)             += vc1.o vc1data.o vc1dsp.o msmpeg4data.o intrax8.o intrax8dsp.o
 OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
 OBJS-$(CONFIG_VCR1_ENCODER)            += vcr1.o
 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdav.o
@@ -209,8 +209,8 @@ OBJS-$(CONFIG_WMAV1_ENCODER)           += wmaenc.o wma.o mdct.o fft.o
 OBJS-$(CONFIG_WMAV2_ENCODER)           += wmaenc.o wma.o mdct.o fft.o
 OBJS-$(CONFIG_WMV1_DECODER)            += h263dec.o h263.o
 OBJS-$(CONFIG_WMV1_ENCODER)            += mpegvideo_enc.o motion_est.o ratecontrol.o h263.o
-OBJS-$(CONFIG_WMV2_DECODER)            += wmv2.o msmpeg4.o msmpeg4data.o h263dec.o h263.o
-OBJS-$(CONFIG_WMV2_ENCODER)            += wmv2.o msmpeg4.o msmpeg4data.o mpegvideo_enc.o motion_est.o ratecontrol.o h263.o
+OBJS-$(CONFIG_WMV2_DECODER)            += wmv2.o msmpeg4.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o
+OBJS-$(CONFIG_WMV2_ENCODER)            += wmv2.o msmpeg4.o msmpeg4data.o mpegvideo_enc.o motion_est.o ratecontrol.o h263.o intrax8.o intrax8dsp.o
 OBJS-$(CONFIG_WMV3_DECODER)            += vc1.o vc1data.o vc1dsp.o
 OBJS-$(CONFIG_WNV1_DECODER)            += wnv1.o
 OBJS-$(CONFIG_WS_SND1_DECODER)         += ws-snd1.o
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index a1ee6691af..f9d533eabb 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1295,6 +1295,7 @@ typedef struct AVCodecContext {
 #define FF_IDCT_SIMPLEARMV5TE 16
 #define FF_IDCT_SIMPLEARMV6   17
 #define FF_IDCT_SIMPLEVIS     18
+#define FF_IDCT_WMV2          19
 
     /**
      * slice count
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index ce83096431..1d816463b4 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -2561,6 +2561,10 @@ void ff_put_vc1_mspel_mc00_c(uint8_t *dst, uint8_t *src, int stride, int rnd) {
 }
 #endif /* CONFIG_VC1_DECODER||CONFIG_WMV3_DECODER */
 
+#if defined(CONFIG_WMV2_DECODER) || defined(CONFIG_VC1_DECODER) || defined(CONFIG_WMV3_DECODER)
+void ff_intrax8dsp_init(DSPContext* c, AVCodecContext *avctx);
+#endif
+
 #if defined(CONFIG_H264_ENCODER)
 /* H264 specific */
 void ff_h264dspenc_init(DSPContext* c, AVCodecContext *avctx);
@@ -3758,8 +3762,90 @@ void ff_float_to_int16_c(int16_t *dst, const float *src, int len){
     }
 }
 
+#define W0 2048
+#define W1 2841 /* 2048*sqrt (2)*cos (1*pi/16) */
+#define W2 2676 /* 2048*sqrt (2)*cos (2*pi/16) */
+#define W3 2408 /* 2048*sqrt (2)*cos (3*pi/16) */
+#define W4 2048 /* 2048*sqrt (2)*cos (4*pi/16) */
+#define W5 1609 /* 2048*sqrt (2)*cos (5*pi/16) */
+#define W6 1108 /* 2048*sqrt (2)*cos (6*pi/16) */
+#define W7 565  /* 2048*sqrt (2)*cos (7*pi/16) */
+
+static void wmv2_idct_row(short * b)
+{
+    int s1,s2;
+    int a0,a1,a2,a3,a4,a5,a6,a7;
+    /*step 1*/
+    a1 = W1*b[1]+W7*b[7];
+    a7 = W7*b[1]-W1*b[7];
+    a5 = W5*b[5]+W3*b[3];
+    a3 = W3*b[5]-W5*b[3];
+    a2 = W2*b[2]+W6*b[6];
+    a6 = W6*b[2]-W2*b[6];
+    a0 = W0*b[0]+W0*b[4];
+    a4 = W0*b[0]-W0*b[4];
+    /*step 2*/
+    s1 = (181*(a1-a5+a7-a3)+128)>>8;//1,3,5,7,
+    s2 = (181*(a1-a5-a7+a3)+128)>>8;
+    /*step 3*/
+    b[0] = (a0+a2+a1+a5 + (1<<7))>>8;
+    b[1] = (a4+a6 +s1   + (1<<7))>>8;
+    b[2] = (a4-a6 +s2   + (1<<7))>>8;
+    b[3] = (a0-a2+a7+a3 + (1<<7))>>8;
+    b[4] = (a0-a2-a7-a3 + (1<<7))>>8;
+    b[5] = (a4-a6 -s2   + (1<<7))>>8;
+    b[6] = (a4+a6 -s1   + (1<<7))>>8;
+    b[7] = (a0+a2-a1-a5 + (1<<7))>>8;
+}
+static void wmv2_idct_col(short * b)
+{
+    int s1,s2;
+    int a0,a1,a2,a3,a4,a5,a6,a7;
+    /*step 1, with extended precision*/
+    a1 = (W1*b[8*1]+W7*b[8*7] + 4)>>3;
+    a7 = (W7*b[8*1]-W1*b[8*7] + 4)>>3;
+    a5 = (W5*b[8*5]+W3*b[8*3] + 4)>>3;
+    a3 = (W3*b[8*5]-W5*b[8*3] + 4)>>3;
+    a2 = (W2*b[8*2]+W6*b[8*6] + 4)>>3;
+    a6 = (W6*b[8*2]-W2*b[8*6] + 4)>>3;
+    a0 = (W0*b[8*0]+W0*b[8*4]    )>>3;
+    a4 = (W0*b[8*0]-W0*b[8*4]    )>>3;
+    /*step 2*/
+    s1 = (181*(a1-a5+a7-a3)+128)>>8;
+    s2 = (181*(a1-a5-a7+a3)+128)>>8;
+    /*step 3*/
+    b[8*0] = (a0+a2+a1+a5 + (1<<13))>>14;
+    b[8*1] = (a4+a6 +s1   + (1<<13))>>14;
+    b[8*2] = (a4-a6 +s2   + (1<<13))>>14;
+    b[8*3] = (a0-a2+a7+a3 + (1<<13))>>14;
+
+    b[8*4] = (a0-a2-a7-a3 + (1<<13))>>14;
+    b[8*5] = (a4-a6 -s2   + (1<<13))>>14;
+    b[8*6] = (a4+a6 -s1   + (1<<13))>>14;
+    b[8*7] = (a0+a2-a1-a5 + (1<<13))>>14;
+}
+void ff_wmv2_idct_c(short * block){
+    int i;
+
+    for(i=0;i<64;i+=8){
+        wmv2_idct_row(block+i);
+    }
+    for(i=0;i<8;i++){
+        wmv2_idct_col(block+i);
+    }
+}
 /* XXX: those functions should be suppressed ASAP when all IDCTs are
  converted */
+static void ff_wmv2_idct_put_c(uint8_t *dest, int line_size, DCTELEM *block)
+{
+    ff_wmv2_idct_c(block);
+    put_pixels_clamped_c(block, dest, line_size);
+}
+static void ff_wmv2_idct_add_c(uint8_t *dest, int line_size, DCTELEM *block)
+{
+    ff_wmv2_idct_c(block);
+    add_pixels_clamped_c(block, dest, line_size);
+}
 static void ff_jref_idct_put(uint8_t *dest, int line_size, DCTELEM *block)
 {
     j_rev_dct (block);
@@ -3899,6 +3985,11 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
             c->idct_add= ff_vp3_idct_add_c;
             c->idct    = ff_vp3_idct_c;
             c->idct_permutation_type= FF_NO_IDCT_PERM;
+        }else if(avctx->idct_algo==FF_IDCT_WMV2){
+            c->idct_put= ff_wmv2_idct_put_c;
+            c->idct_add= ff_wmv2_idct_add_c;
+            c->idct    = ff_wmv2_idct_c;
+            c->idct_permutation_type= FF_NO_IDCT_PERM;
         }else{ //accurate/default
             c->idct_put= simple_idct_put;
             c->idct_add= simple_idct_add;
@@ -4056,6 +4147,9 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
 #if defined(CONFIG_VC1_DECODER) || defined(CONFIG_WMV3_DECODER)
     ff_vc1dsp_init(c,avctx);
 #endif
+#if defined(CONFIG_WMV2_DECODER) || defined(CONFIG_VC1_DECODER) || defined(CONFIG_WMV3_DECODER)
+    ff_intrax8dsp_init(c,avctx);
+#endif
 #if defined(CONFIG_H264_ENCODER)
     ff_h264dspenc_init(c,avctx);
 #endif
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 6cb22fb9e8..1ecf402913 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -48,6 +48,7 @@ void j_rev_dct (DCTELEM *data);
 void j_rev_dct4 (DCTELEM *data);
 void j_rev_dct2 (DCTELEM *data);
 void j_rev_dct1 (DCTELEM *data);
+void ff_wmv2_idct_c(DCTELEM *data);
 
 void ff_fdct_mmx(DCTELEM *block);
 void ff_fdct_mmx2(DCTELEM *block);
@@ -326,6 +327,9 @@ typedef struct DSPContext {
 
     void (*h261_loop_filter)(uint8_t *src, int stride);
 
+    void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
+    void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
+
     /* assume len is a multiple of 4, and arrays are 16-byte aligned */
     void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
     /* no alignment needed */
@@ -412,6 +416,12 @@ typedef struct DSPContext {
      * last argument is actually round value instead of height
      */
     op_pixels_func put_vc1_mspel_pixels_tab[16];
+
+    /* intrax8 functions */
+    void (*x8_spacial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
+    void (*x8_setup_spacial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
+           int * range, int * sum,  int edges);
+
 } DSPContext;
 
 void dsputil_static_init(void);
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 3d60fc1d90..93d578415c 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -623,9 +623,10 @@ retry:
 
     //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
     //which is not available before MPV_frame_start()
-    if (s->msmpeg4_version==5){
-        if(!ENABLE_WMV2_DECODER || ff_wmv2_decode_secondary_picture_header(s) < 0)
-            return -1;
+    if (ENABLE_WMV2_DECODER && s->msmpeg4_version==5){
+        ret = ff_wmv2_decode_secondary_picture_header(s);
+        if(ret<0) return ret;
+        if(ret==1) goto intrax8_decoded;
     }
 
     /* decode each macroblock */
@@ -682,6 +683,7 @@ retry:
         }
     }
 
+intrax8_decoded:
     ff_er_frame_end(s);
 
     MPV_frame_end(s);
diff --git a/libavcodec/intrax8.c b/libavcodec/intrax8.c
new file mode 100644
index 0000000000..2d091ceead
--- /dev/null
+++ b/libavcodec/intrax8.c
@@ -0,0 +1,757 @@
+/*
+ * 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
+ */
+
+/**
+ * @file intrax8.c
+ * @brief IntraX8 (J-Frame) sub-decoder, used by wmv2 and vc1
+ */
+
+#include "avcodec.h"
+#include "bitstream.h"
+#include "mpegvideo.h"
+#include "msmpeg4data.h"
+#include "intrax8huf.h"
+#include "intrax8.h"
+
+#define MAX_TABLE_DEPTH(table_bits, max_bits) ((max_bits+table_bits-1)/table_bits)
+
+#define DC_VLC_BITS 9
+#define AC_VLC_BITS 9
+#define OR_VLC_BITS 7
+
+#define DC_VLC_MTD MAX_TABLE_DEPTH(DC_VLC_BITS, MAX_DC_VLC_BITS)
+#define AC_VLC_MTD MAX_TABLE_DEPTH(AC_VLC_BITS, MAX_AC_VLC_BITS)
+#define OR_VLC_MTD MAX_TABLE_DEPTH(OR_VLC_BITS, MAX_OR_VLC_BITS)
+
+static VLC j_ac_vlc[2][2][8];  //[quant<13],[intra/inter],[select]
+static VLC j_dc_vlc[2][8];     //[quant], [select]
+static VLC j_orient_vlc[2][4]; //[quant], [select]
+
+static void x8_vlc_init(){
+    int i;
+
+#define  init_ac_vlc(dst,src) \
+       init_vlc(&dst, \
+              AC_VLC_BITS,77, \
+              &src[1],4,2, \
+              &src[0],4,2, \
+              1)
+//set ac tables
+    for(i=0;i<8;i++){
+        init_ac_vlc( j_ac_vlc[0][0][i], ff_x8_ac0_highquant_table[i][0] );
+        init_ac_vlc( j_ac_vlc[0][1][i], ff_x8_ac1_highquant_table[i][0] );
+        init_ac_vlc( j_ac_vlc[1][0][i], ff_x8_ac0_lowquant_table [i][0] );
+        init_ac_vlc( j_ac_vlc[1][1][i], ff_x8_ac1_lowquant_table [i][0] );
+    }
+#undef init_ac_vlc
+
+//set dc tables
+#define init_dc_vlc(dst,src) \
+        init_vlc(&dst, \
+        DC_VLC_BITS,34, \
+        &src[1],4,2, \
+        &src[0],4,2, \
+        1);
+    for(i=0;i<8;i++){
+        init_dc_vlc( j_dc_vlc[0][i], ff_x8_dc_highquant_table[i][0]);
+        init_dc_vlc( j_dc_vlc[1][i], ff_x8_dc_lowquant_table [i][0]);
+    }
+#undef init_dc_vlc
+
+//set orient tables
+#define init_or_vlc(dst,src) \
+    init_vlc(&dst, \
+    OR_VLC_BITS,12, \
+    &src[1],4,2, \
+    &src[0],4,2, \
+    1);
+    for(i=0;i<2;i++){
+        init_or_vlc( j_orient_vlc[0][i], ff_x8_orient_highquant_table[i][0]);
+    }
+    for(i=0;i<4;i++){
+        init_or_vlc( j_orient_vlc[1][i], ff_x8_orient_lowquant_table [i][0])
+    }
+}
+#undef init_or_vlc
+
+static inline void x8_reset_vlc_tables(IntraX8Context * w){
+    memset(w->j_dc_vlc,0,sizeof(w->j_dc_vlc));
+    memset(w->j_ac_vlc,0,sizeof(w->j_ac_vlc));
+    w->j_orient_vlc=NULL;
+}
+
+static inline void x8_select_ac_table(IntraX8Context * const w , int mode){
+    MpegEncContext * const s= w->s;
+    int table_index;
+
+    assert(mode<4);
+
+    if( w->j_ac_vlc[mode] ) return;
+
+    table_index = get_bits(&s->gb, 3);
+    w->j_ac_vlc[mode] = &j_ac_vlc[w->quant<13][mode>>1][table_index];//2 modes use same tables
+    assert(w->j_ac_vlc[mode]);
+}
+
+static inline int x8_get_orient_vlc(IntraX8Context * w){
+    MpegEncContext * const s= w->s;
+    int table_index;
+
+    if(!w->j_orient_vlc ){
+        table_index = get_bits(&s->gb, 1+(w->quant<13) );
+        w->j_orient_vlc = &j_orient_vlc[w->quant<13][table_index];
+    }
+    assert(w->j_orient_vlc);
+    assert(w->j_orient_vlc->table);
+
+    return get_vlc2(&s->gb, w->j_orient_vlc->table, OR_VLC_BITS, OR_VLC_MTD);
+}
+
+#define extra_bits(eb) (eb)
+#define extra_run   (0xFF<<8)
+#define extra_level (0x00<<8)
+#define   run_offset(r)    ((r)<<16)
+#define level_offset(l)    ((l)<<24)
+static const uint32_t ac_decode_table[]={
+    /*46*/ extra_bits(3) |  extra_run  | run_offset(16) | level_offset( 0),
+    /*47*/ extra_bits(3) |  extra_run  | run_offset(24) | level_offset( 0),
+    /*48*/ extra_bits(2) |  extra_run  | run_offset( 4) | level_offset( 1),
+    /*49*/ extra_bits(3) |  extra_run  | run_offset( 8) | level_offset( 1),
+
+    /*50*/ extra_bits(5) |  extra_run  | run_offset(32) | level_offset( 0),
+    /*51*/ extra_bits(4) |  extra_run  | run_offset(16) | level_offset( 1),
+
+    /*52*/ extra_bits(2) | extra_level | run_offset( 0) | level_offset( 4),
+    /*53*/ extra_bits(2) | extra_level | run_offset( 0) | level_offset( 8),
+    /*54*/ extra_bits(2) | extra_level | run_offset( 0) | level_offset(12),
+    /*55*/ extra_bits(3) | extra_level | run_offset( 0) | level_offset(16),
+    /*56*/ extra_bits(3) | extra_level | run_offset( 0) | level_offset(24),
+
+    /*57*/ extra_bits(2) | extra_level | run_offset( 1) | level_offset( 3),
+    /*58*/ extra_bits(3) | extra_level | run_offset( 1) | level_offset( 7),
+
+    /*59*/ extra_bits(2) |  extra_run  | run_offset(16) | level_offset( 0),
+    /*60*/ extra_bits(2) |  extra_run  | run_offset(20) | level_offset( 0),
+    /*61*/ extra_bits(2) |  extra_run  | run_offset(24) | level_offset( 0),
+    /*62*/ extra_bits(2) |  extra_run  | run_offset(28) | level_offset( 0),
+    /*63*/ extra_bits(4) |  extra_run  | run_offset(32) | level_offset( 0),
+    /*64*/ extra_bits(4) |  extra_run  | run_offset(48) | level_offset( 0),
+
+    /*65*/ extra_bits(2) |  extra_run  | run_offset( 4) | level_offset( 1),
+    /*66*/ extra_bits(3) |  extra_run  | run_offset( 8) | level_offset( 1),
+    /*67*/ extra_bits(4) |  extra_run  | run_offset(16) | level_offset( 1),
+
+    /*68*/ extra_bits(2) | extra_level | run_offset( 0) | level_offset( 4),
+    /*69*/ extra_bits(3) | extra_level | run_offset( 0) | level_offset( 8),
+    /*70*/ extra_bits(4) | extra_level | run_offset( 0) | level_offset(16),
+
+    /*71*/ extra_bits(2) | extra_level | run_offset( 1) | level_offset( 3),
+    /*72*/ extra_bits(3) | extra_level | run_offset( 1) | level_offset( 7),
+};
+//extra_bits = 3bits; extra_run/level = 1 bit; run_offset = 6bits; level_offset = 5 bits;
+#undef extra_bits
+#undef extra_run
+#undef extra_level
+#undef run_offset
+#undef level_offset
+
+static void x8_get_ac_rlf(IntraX8Context * const w, const int mode,
+                     int * const run, int * const level, int * const final){
+    MpegEncContext *  const s= w->s;
+    int i,e;
+
+//    x8_select_ac_table(w,mode);
+    i = get_vlc2(&s->gb, w->j_ac_vlc[mode]->table, AC_VLC_BITS, AC_VLC_MTD);
+
+    if(i<46){ //[0-45]
+        int t,l;
+        if(i<0){
+            (*level)=(*final)=//prevent 'may be used unilitialized'
+            (*run)=64;//this would cause error exit in the ac loop
+            return;
+        }
+
+        (*final) = t = (i>22);
+        i-=23*t;
+/*
+  i== 0-15 r=0-15 l=0 ;r=i& %01111
+  i==16-19 r=0-3  l=1 ;r=i& %00011
+  i==20-21 r=0-1  l=2 ;r=i& %00001
+  i==22    r=0    l=3 ;r=i& %00000
+l=lut_l[i/2]={0,0,0,0,0,0,0,0,1,1,2,3}[i>>1];// 11 10'01 01'00 00'00 00'00 00'00 00 => 0xE50000
+t=lut_mask[l]={0x0f,0x03,0x01,0x00}[l]; as i<256 the higher bits doesn't matter */
+        l=(0xE50000>>(i&(0x1E)))&3;/*0x1E or (~1) or ((i>>1)<<1)*/
+        t=(0x01030F>>(l<<3));
+
+        (*run)   = i&t;
+        (*level) = l;
+    }else if(i<73){//[46-72]
+        uint32_t sm;
+        uint32_t mask;
+
+        i-=46;
+        sm=ac_decode_table[i];
+
+        e=get_bits(&s->gb,sm&0xF);sm>>=8;//3bits
+        mask=sm&0xff;sm>>=8;             //1bit
+
+        (*run)  =(sm&0xff) + (e&( mask));//6bits
+        (*level)=(sm>>8)   + (e&(~mask));//5bits
+        (*final)=i>(58-46);
+    }else if(i<75){//[73-74]
+        static const uint8_t crazy_mix_runlevel[32]={
+        0x22,0x32,0x33,0x53,0x23,0x42,0x43,0x63,
+        0x24,0x52,0x34,0x73,0x25,0x62,0x44,0x83,
+        0x26,0x72,0x35,0x54,0x27,0x82,0x45,0x64,
+        0x28,0x92,0x36,0x74,0x29,0xa2,0x46,0x84};
+
+        (*final)=!(i&1);
+        e=get_bits(&s->gb,5);//get the extra bits
+        (*run)  =crazy_mix_runlevel[e]>>4;
+        (*level)=crazy_mix_runlevel[e]&0x0F;
+    }else{
+        (*level)=get_bits( &s->gb, 7-3*(i&1));
+        (*run)  =get_bits( &s->gb, 6);
+        (*final)=get_bits1(&s->gb);
+    }
+    return;
+}
+
+//static const uint8_t dc_extra_sbits[]   ={0, 1,1, 1,1, 2,2, 3,3,   4,4,   5,5,   6,6,    7,7    };
+static const uint8_t dc_index_offset[]  ={ 0, 1,2, 3,4, 5,7, 9,13, 17,25, 33,49, 65,97, 129,193};
+
+static int x8_get_dc_rlf(IntraX8Context * const w,int const mode, int * const level, int * const final){
+    MpegEncContext * const s= w->s;
+    int i,e,c;
+
+    assert(mode<3);
+    if( !w->j_dc_vlc[mode] ) {
+        int table_index;
+        table_index = get_bits(&s->gb, 3);
+        //4 modes, same table
+        w->j_dc_vlc[mode]= &j_dc_vlc[w->quant<13][table_index];
+    }
+    assert(w->j_dc_vlc);
+    assert(w->j_dc_vlc[mode]->table);
+
+    i=get_vlc2(&s->gb, w->j_dc_vlc[mode]->table, DC_VLC_BITS, DC_VLC_MTD);
+
+    /*(i>=17) {i-=17;final=1;}*/
+    c= i>16;
+    (*final)=c;
+    i-=17*c;
+
+    if(i<=0){
+        (*level)=0;
+        return -i;
+    }
+    c=(i+1)>>1;//hackish way to calculate dc_extra_sbits[]
+    c-=c>1;
+
+    e=get_bits(&s->gb,c);//get the extra bits
+    i=dc_index_offset[i]+(e>>1);
+
+    e= -(e & 1);//0,0xffffff
+    (*level)= (i ^ e) - e;// (i^0)-0 , (i^0xff)-(-1)
+    return 0;
+}
+//end of huffman
+
+static int x8_setup_spatial_predictor(IntraX8Context * const w, const int chroma){
+    MpegEncContext * const s= w->s;
+    int range;
+    int sum;
+    int quant;
+
+    s->dsp.x8_setup_spacial_compensation(s->dest[chroma], s->edge_emu_buffer,
+                                          s->current_picture.linesize[chroma>0],
+                                          &range, &sum, w->edges);
+    if(chroma){
+        w->orient=w->chroma_orient;
+        quant=w->quant_dc_chroma;
+    }else{
+        quant=w->quant;
+    }
+
+    w->flat_dc=0;
+    if(range < quant || range < 3){
+        w->orient=0;
+        if(range < 3){//yep you read right, idct error of +-1 may break decoding!
+            w->flat_dc=1;
+            sum+=9;
+            w->predicted_dc = (sum*6899)>>17;//((1<<17)+9)/(8+8+1+2)=6899
+        }
+    }
+    if(chroma)
+        return 0;
+
+    assert(w->orient < 3);
+    if(range < 2*w->quant){
+        if( (w->edges&3) == 0){
+            if(w->orient==1) w->orient=11;
+            if(w->orient==2) w->orient=10;
+        }else{
+            w->orient=0;
+        }
+        w->raw_orient=0;
+    }else{
+        static const uint8_t prediction_table[3][12]={
+            {0,8,4, 10,11, 2,6,9,1,3,5,7},
+            {4,0,8, 11,10, 3,5,2,6,9,1,7},
+            {8,0,4, 10,11, 1,7,2,6,9,3,5}
+        };
+        w->raw_orient=x8_get_orient_vlc(w);
+        if(w->raw_orient<0) return -1;
+        assert(w->raw_orient < 12 );
+        assert(w->orient<3);
+        w->orient=prediction_table[w->orient][w->raw_orient];
+    }
+    return 0;
+}
+
+static void x8_update_predictions(IntraX8Context * const w, const int orient, const int est_run ){
+    MpegEncContext * const s= w->s;
+
+    w->prediction_table[s->mb_x*2+(s->mb_y&1)] = (est_run<<2) + 1*(orient==4) + 2*(orient==8);
+/*
+  y=2n+0 ->//0 2 4
+  y=2n+1 ->//1 3 5
+*/
+}
+static void x8_get_prediction_chroma(IntraX8Context * const w){
+    MpegEncContext * const s= w->s;
+
+    w->edges = 1*( !(s->mb_x>>1) );
+    w->edges|= 2*( !(s->mb_y>>1) );
+    w->edges|= 4*( s->mb_x >= (2*s->mb_width-1) );//mb_x for chroma would always be odd
+
+    w->raw_orient=0;
+    if(w->edges&3){//lut_co[8]={inv,4,8,8, inv,4,8,8}<- =>{1,1,0,0;1,1,0,0} => 0xCC
+        w->chroma_orient=4<<((0xCC>>w->edges)&1);
+        return;
+    }
+    w->chroma_orient = (w->prediction_table[2*s->mb_x-2] & 0x03)<<2;//block[x-1][y|1-1)]
+}
+
+static void x8_get_prediction(IntraX8Context * const w){
+    MpegEncContext * const s= w->s;
+    int a,b,c,i;
+
+    w->edges = 1*( !s->mb_x );
+    w->edges|= 2*( !s->mb_y );
+    w->edges|= 4*( s->mb_x >= (2*s->mb_width-1) );
+
+    switch(w->edges&3){
+        case 0:
+            break;
+        case 1:
+            //take the one from the above block[0][y-1]
+            w->est_run = w->prediction_table[!(s->mb_y&1)]>>2;
+            w->orient  = 1;
+            return;
+        case 2:
+            //take the one from the previous block[x-1][0]
+            w->est_run = w->prediction_table[2*s->mb_x-2]>>2;
+            w->orient  = 2;
+            return;
+        case 3:
+            w->est_run = 16;
+            w->orient  = 0;
+            return;
+    }
+    //no edge cases.
+    b= w->prediction_table[2*s->mb_x   + !(s->mb_y&1) ];//block[x  ][y-1]
+    a= w->prediction_table[2*s->mb_x-2 +  (s->mb_y&1) ];//block[x-1][y  ]
+    c= w->prediction_table[2*s->mb_x-2 + !(s->mb_y&1) ];//block[x-1][y-1]
+
+    w->est_run = FFMIN(b,a);
+    /*this condition have nothing to do with w->edges, even if it looks similar
+      it would triger if e.g. x=3;y=2;
+      I guess somebody wrote something wrong and it became standard */
+    if( (s->mb_x & s->mb_y) != 0 ) w->est_run=FFMIN(c,w->est_run);
+    w->est_run>>=2;
+
+    a&=3;
+    b&=3;
+    c&=3;
+
+    i=( 0xFFEAF4C4>>(2*b+8*a) )&3;
+    if(i!=3) w->orient=i;
+    else     w->orient=( 0xFFEAD8>>(2*c+8*(w->quant>12)) )&3;
+/*
+lut1[b][a]={
+->{0, 1, 0, pad},
+  {0, 1, X, pad},
+  {2, 2, 2, pad}}
+   pad 2   2  2; pad X  1  0; pad 0  1  0 <-
+-> 11 10 '10 10 '11 11'01 00 '11 00'01 00=>0xEAF4C4
+
+lut2[q>12][c]={
+  ->{0,2,1,pad},
+    {2,2,2,pad}}
+   pad 2  2  2; pad 1  2  0 <-
+-> 11 10'10 10 '11 01'10 00=>0xEAD8
+*/
+}
+
+
+static void x8_ac_compensation(IntraX8Context * const w, int const direction, int const dc_level){
+    MpegEncContext * const s= w->s;
+    int t;
+#define B(x,y)  s->block[0][s->dsp.idct_permutation[(x)+(y)*8]]
+#define T(x)  ((x) * dc_level + 0x8000) >> 16;
+    switch(direction){
+    case 0:
+        t = T(3811);//h
+        B(1,0) -= t;
+        B(0,1) -= t;
+
+        t = T(487);//e
+        B(2,0) -= t;
+        B(0,2) -= t;
+
+        t = T(506);//f
+        B(3,0) -= t;
+        B(0,3) -= t;
+
+        t = T(135);//c
+        B(4,0) -= t;
+        B(0,4) -= t;
+        B(2,1) += t;
+        B(1,2) += t;
+        B(3,1) += t;
+        B(1,3) += t;
+
+        t = T(173);//d
+        B(5,0) -= t;
+        B(0,5) -= t;
+
+        t = T(61);//b
+        B(6,0) -= t;
+        B(0,6) -= t;
+        B(5,1) += t;
+        B(1,5) += t;
+
+        t = T(42); //a
+        B(7,0) -= t;
+        B(0,7) -= t;
+        B(4,1) += t;
+        B(1,4) += t;
+        B(4,4) += t;
+
+        t = T(1084);//g
+        B(1,1) += t;
+
+        s->block_last_index[0] = FFMAX(s->block_last_index[0], 7*8);
+        break;
+    case 1:
+        B(0,1) -= T(6269);
+        B(0,3) -= T( 708);
+        B(0,5) -= T( 172);
+        B(0,7) -= T(  73);
+
+        s->block_last_index[0] = FFMAX(s->block_last_index[0], 7*8);
+        break;
+    case 2:
+        B(1,0) -= T(6269);
+        B(3,0) -= T( 708);
+        B(5,0) -= T( 172);
+        B(7,0) -= T(  73);
+
+        s->block_last_index[0] = FFMAX(s->block_last_index[0], 7);
+        break;
+    }
+#undef B
+#undef T
+}
+
+static void dsp_x8_put_solidcolor(uint8_t const pix, uint8_t * dst, int const linesize){
+    int k;
+    for(k=0;k<8;k++){
+        memset(dst,pix,8);
+        dst+=linesize;
+    }
+}
+
+static const int16_t quant_table[64] = {
+    256, 256, 256, 256,  256, 256, 259, 262,
+    265, 269, 272, 275,  278, 282, 285, 288,
+    292, 295, 299, 303,  306, 310, 314, 317,
+    321, 325, 329, 333,  337, 341, 345, 349,
+    353, 358, 362, 366,  371, 375, 379, 384,
+    389, 393, 398, 403,  408, 413, 417, 422,
+    428, 433, 438, 443,  448, 454, 459, 465,
+    470, 476, 482, 488,  493, 499, 505, 511
+};
+
+static int x8_decode_intra_mb(IntraX8Context* const w, const int chroma){
+MpegEncContext * const s= w->s;
+
+    uint8_t * scantable;
+    int final,run,level;
+    int ac_mode,dc_mode,est_run,dc_level;
+    int pos,n;
+    int zeros_only;
+    int use_quant_matrix;
+    int sign;
+
+    assert(w->orient<12);
+    memset(s->block[0],0x00,64*sizeof(DCTELEM));
+
+    if(chroma){
+        dc_mode=2;
+    }else{
+        dc_mode=!!w->est_run;//0,1
+    }
+
+    if(x8_get_dc_rlf(w, dc_mode, &dc_level, &final)) return -1;
+    n=0;
+    zeros_only=0;
+    if(!final){//decode ac
+        use_quant_matrix=w->use_quant_matrix;
+        if(chroma){
+            ac_mode = 1;
+            est_run = 64;//not used
+        }else{
+            if (w->raw_orient < 3){
+                use_quant_matrix = 0;
+            }
+            if(w->raw_orient > 4){
+                ac_mode = 0;
+                est_run = 64;
+            }else{
+                if(w->est_run > 1){
+                    ac_mode = 2;
+                    est_run=w->est_run;
+                }else{
+                    ac_mode = 3;
+                    est_run = 64;
+                }
+            }
+        }
+        x8_select_ac_table(w,ac_mode);
+        /*scantable_selector[12]={0,2,0,1,1,1,0,2,2,0,1,2};<-
+        -> 10'01' 00'10' 10'00' 01'01' 01'00' 10'00 =>0x928548 */
+        scantable = w->scantable[ (0x928548>>(2*w->orient))&3 ].permutated;
+        pos=0;
+        do {
+            n++;
+            if( n >= est_run ){
+                ac_mode=3;
+                x8_select_ac_table(w,3);
+            }
+
+            x8_get_ac_rlf(w,ac_mode,&run,&level,&final);
+
+            pos+=run+1;
+            if(pos>63){
+                //this also handles vlc error in x8_get_ac_rlf
+                return -1;
+            }
+            level= (level+1) * w->dquant;
+            level+= w->qsum;
+
+            sign = - get_bits1(&s->gb);
+            level = (level ^ sign) - sign;
+
+            if(use_quant_matrix){
+                level = (level*quant_table[pos])>>8;
+            }
+            s->block[0][ scantable[pos] ]=level;
+        }while(!final);
+
+        s->block_last_index[0]=pos;
+    }else{//DC only
+        s->block_last_index[0]=0;
+        if(w->flat_dc && ((unsigned)(dc_level+1)) < 3){//[-1;1]
+            int32_t divide_quant= !chroma ? w->divide_quant_dc_luma:
+                                            w->divide_quant_dc_chroma;
+            int32_t dc_quant    = !chroma ? w->quant:
+                                            w->quant_dc_chroma;
+
+            //original intent dc_level+=predicted_dc/quant; but it got lost somewhere in the rounding
+            dc_level+= (w->predicted_dc*divide_quant + (1<<12) )>>13;
+
+            dsp_x8_put_solidcolor( av_clip_uint8((dc_level*dc_quant+4)>>3),
+                                   s->dest[chroma], s->current_picture.linesize[!!chroma]);
+
+            goto block_placed;
+        }
+        zeros_only = (dc_level == 0);
+    }
+    if(!chroma){
+        s->block[0][0] = dc_level*w->quant;
+    }else{
+        s->block[0][0] = dc_level*w->quant_dc_chroma;
+    }
+
+    //there is !zero_only check in the original, but dc_level check is enough
+    if( (unsigned int)(dc_level+1) >= 3 && (w->edges&3) != 3 ){
+        int direction;
+        /*ac_comp_direction[orient] = { 0, 3, 3, 1, 1, 0, 0, 0, 2, 2, 2, 1 };<-
+        -> 01'10' 10'10' 00'00' 00'01' 01'11' 11'00 =>0x6A017C */
+        direction= (0x6A017C>>(w->orient*2))&3;
+        if (direction != 3){
+            x8_ac_compensation(w, direction, s->block[0][0]);//modify block_last[]
+        }
+    }
+
+    if(w->flat_dc){
+        dsp_x8_put_solidcolor(w->predicted_dc, s->dest[chroma], s->current_picture.linesize[!!chroma]);
+    }else{
+        s->dsp.x8_spacial_compensation[w->orient]( s->edge_emu_buffer,
+                                            s->dest[chroma],
+                                            s->current_picture.linesize[!!chroma] );
+    }
+    if(!zeros_only)
+        s->dsp.idct_add ( s->dest[chroma],
+                          s->current_picture.linesize[!!chroma],
+                          s->block[0] );
+
+block_placed:
+
+    if(!chroma){
+        x8_update_predictions(w,w->orient,n);
+    }
+
+    if(s->loop_filter){
+        uint8_t* ptr = s->dest[chroma];
+        int linesize = s->current_picture.linesize[!!chroma];
+
+        if(!( (w->edges&2) || ( zeros_only && (w->orient|4)==4 ) )){
+            s->dsp.x8_h_loop_filter(ptr, linesize, w->quant);
+        }
+        if(!( (w->edges&1) || ( zeros_only && (w->orient|8)==8 ) )){
+            s->dsp.x8_v_loop_filter(ptr, linesize, w->quant);
+        }
+    }
+    return 0;
+}
+
+static inline void x8_init_block_index(MpegEncContext *s){ //FIXME maybe merge with ff_*
+//not s->linesize as this would be wrong for field pics
+//not that IntraX8 have interlace support ;)
+    const int linesize  = s->current_picture.linesize[0];
+    const int uvlinesize= s->current_picture.linesize[1];
+
+    s->dest[0] = s->current_picture.data[0];
+    s->dest[1] = s->current_picture.data[1];
+    s->dest[2] = s->current_picture.data[2];
+
+    {
+        s->dest[0] += s->mb_y *   linesize << 3;
+        s->dest[1] += ( s->mb_y&(~1) ) * uvlinesize << 2;//chroma blocks are on add rows
+        s->dest[2] += ( s->mb_y&(~1) ) * uvlinesize << 2;
+    }
+}
+
+/**
+ * Initialize IntraX8 frame decoder.
+ * Requires valid MpegEncContext with valid s->mb_width before calling.
+ * @param w pointer to IntraX8Context
+ * @param s pointer to MpegEncContext of the parent codec
+ */
+void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s){
+
+    w->s=s;
+    x8_vlc_init();
+    assert(s->mb_width>0);
+    w->prediction_table=av_mallocz(s->mb_width*2*2);//two rows, 2 blocks per cannon mb
+
+    ff_init_scantable(s->dsp.idct_permutation, &w->scantable[0], wmv1_scantable[0]);
+    ff_init_scantable(s->dsp.idct_permutation, &w->scantable[1], wmv1_scantable[2]);
+    ff_init_scantable(s->dsp.idct_permutation, &w->scantable[2], wmv1_scantable[3]);
+}
+
+/**
+ * Decode single IntraX8 frame.
+ * The parent codec must fill s->loopfilter and s->gb (bitstream).
+ * The parent codec must call MPV_frame_start(), ff_er_frame_start() before calling this function
+ * The parent codec must call ff_er_frame_end(), MPV_frame_end() after calling this function.
+ * This function does not use MPV_decode_mb().
+ * lowres decoding is theoretically impossible.
+ * @param w pointer to IntraX8Context
+ * @param dquant doubled quantizer, it would be odd in case of vc1 halfpq==1
+ * @param quant_offset offset away from zero.
+ */
+//FIXME extern uint8_t wmv3_dc_scale_table[32];
+int ff_intrax8_decode_picture(IntraX8Context * const w, int dquant, int quant_offset){
+    MpegEncContext * const s= w->s;
+    int mb_xy;
+    assert(s);
+    w->use_quant_matrix = get_bits1(&s->gb);
+
+    w->dquant = dquant;
+    w->quant  = dquant >> 1;
+    w->qsum   = quant_offset;
+
+    w->divide_quant_dc_luma = ((1<<16) + (w->quant>>1)) / w->quant;
+    if(w->quant < 5){
+        w->quant_dc_chroma =  w->quant;
+        w->divide_quant_dc_chroma = w->divide_quant_dc_luma;
+    }else{
+        w->quant_dc_chroma =  w->quant+((w->quant+3)>>3);
+        w->divide_quant_dc_chroma = ((1<<16) + (w->quant_dc_chroma>>1)) / w->quant_dc_chroma;
+    }
+    x8_reset_vlc_tables(w);
+
+    s->resync_mb_x=0;
+    s->resync_mb_y=0;
+
+    for(s->mb_y=0; s->mb_y < s->mb_height*2; s->mb_y++){
+        x8_init_block_index(s);
+        mb_xy=(s->mb_y>>1)*s->mb_stride;
+
+        for(s->mb_x=0; s->mb_x < s->mb_width*2; s->mb_x++){
+            x8_get_prediction(w);
+            if(x8_setup_spatial_predictor(w,0)) goto error;
+            if(x8_decode_intra_mb(w,0)) goto error;
+
+            if( s->mb_x & s->mb_y & 1 ){
+                x8_get_prediction_chroma(w);
+
+                /*when setting up chroma, no vlc is read,
+                so no error condition could be reached*/
+                x8_setup_spatial_predictor(w,1);
+                if(x8_decode_intra_mb(w,1)) goto error;
+
+                x8_setup_spatial_predictor(w,2);
+                if(x8_decode_intra_mb(w,2)) goto error;
+
+                s->dest[1]+= 8;
+                s->dest[2]+= 8;
+
+                /*emulate MB info in the relevant tables*/
+                s->mbskip_table [mb_xy]=0;
+                s->mbintra_table[mb_xy]=1;
+                s->current_picture.qscale_table[mb_xy]=w->quant;
+                mb_xy++;
+            }
+            s->dest[0]+= 8;
+        }
+        if(s->mb_y&1){
+            ff_draw_horiz_band(s, (s->mb_y-1)*8, 16);
+        }
+    }
+
+error:
+    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y,
+                        (s->mb_x>>1)-1, (s->mb_y>>1)-1,
+                        (AC_END|DC_END|MV_END) );
+    return 0;
+}
diff --git a/libavcodec/intrax8.h b/libavcodec/intrax8.h
new file mode 100644
index 0000000000..0bbe72ded2
--- /dev/null
+++ b/libavcodec/intrax8.h
@@ -0,0 +1,51 @@
+/*
+ * 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
+ */
+
+typedef struct{
+    VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
+    VLC * j_orient_vlc;
+    VLC * j_dc_vlc[3];
+
+    int use_quant_matrix;
+//set by ff_intrax8_common_init
+    uint8_t * prediction_table;//2*(mb_w*2)
+    ScanTable scantable[3];
+//set by the caller codec
+    MpegEncContext * s;
+    int quant;
+    int dquant;
+    int qsum;
+//calculated per frame
+    int quant_dc_chroma;
+    int divide_quant_dc_luma;
+    int divide_quant_dc_chroma;
+//changed per block
+    int edges;
+    int flat_dc;
+    int predicted_dc;
+    int raw_orient;
+    int chroma_orient;
+    int orient;
+    int est_run;
+//#ifdef DEBUG
+    int mode_index[10];//debug only
+//#endif
+} IntraX8Context;
+
+void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s);
+int  ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
diff --git a/libavcodec/intrax8dsp.c b/libavcodec/intrax8dsp.c
new file mode 100644
index 0000000000..876bd398cd
--- /dev/null
+++ b/libavcodec/intrax8dsp.c
@@ -0,0 +1,485 @@
+/*
+ * 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
+ */
+
+/**
+* @file intrax8dsp.c
+ *@brief IntraX8 frame sub-decoder image manipulation routines
+ *
+ */
+
+#include "dsputil.h"
+
+/*
+area positions, #3 is 1 pixel only, other are 8 pixels
+   |66666666|
+  3|44444444|55555555|
+- -+--------+--------+
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+1 2|XXXXXXXX|
+^-start
+*/
+
+#define area1 (0)
+#define area2 (8)
+#define area3 (8+8)
+#define area4 (8+8+1)
+#define area5 (8+8+1+8)
+#define area6 (8+8+1+16)
+
+/**
+ Collect statistics and prepare the edge pixels required by the other spacial compensation functions.
+
+ * @param src pointer to the beginning of the processed block
+ * @param dst pointer to emu_edge, edge pixels are stored in way other compensation routines use.
+ * @param linesize byte offset between 2 vertical pixels in the source image
+ * @param range pointer to the variable where the range of edge pixels is to be stored (max-min values)
+ * @param psum  pointer to the variable where the sum of edge pixels is to be stored
+ * @param edges informs this routine that the block is on image border, so it have to interpolate the missing edge pixels.
+                and some of the edge pixels should be interpolated, flag have following meaning:
+                1   - mb_x==0 - first block in the row, interpolate area #1,#2,#3;
+                2   - mb_y==0 - first row, interpolate area #3,#4,#5,#6;
+        note:   1|2 - mb_x==mb_y==0 - first block, use 0x80 value for all areas;
+                4   - mb_x>= (mb_width-1) last block on the row, interpolate area #5;
+*/
+static void x8_setup_spacial_compensation(uint8_t *src, uint8_t *dst, int linesize,
+           int * range, int * psum,  int edges){
+    uint8_t * ptr;
+    int sum;
+    int i;
+    int min_pix,max_pix;
+    uint8_t c;
+
+    if((edges&3)==3){
+        *psum=0x80*(8+1+8+2);
+        *range=0;
+        memset(dst,0x80,16+1+16+8);
+        //this triggers flat_dc for sure.
+        //flat_dc avoids all (other) prediction modes, but requires dc_level decoding.
+        return;
+    }
+
+    min_pix=256;
+    max_pix=-1;
+
+    sum=0;
+
+    if(!(edges&1)){//(mb_x!=0)//there is previous block on this row
+        ptr=src-1;//left column, area 2
+        for(i=7;i>=0;i--){
+            c=*(ptr-1);//area1, same mb as area2, no need to check
+            dst[area1+i]=c;
+            c=*(ptr);
+
+            sum+=c;
+            min_pix=FFMIN(min_pix,c);
+            max_pix=FFMAX(max_pix,c);
+            dst[area2+i]=c;
+
+            ptr+=linesize;
+        }
+    }
+
+    if(!(edges&2)){  //(mb_y!=0)//there is row above
+        ptr=src-linesize;//top line
+        for(i=0;i<8;i++){
+            c=*(ptr+i);
+            sum+=c;
+            min_pix=FFMIN(min_pix, c);
+            max_pix=FFMAX(max_pix, c);
+        }
+        if(edges&4){//last block on the row?
+            memset(dst+area5,c,8);//set with last pixel fr
+            memcpy(dst+area4, ptr, 8);
+        }else{
+            memcpy(dst+area4, ptr, 16);//both area4 and 5
+        }
+        memcpy(dst+area6, ptr-linesize, 8);//area6 always present in the above block
+    }
+//now calc the stuff we need
+    if(edges&3){//mb_x==0 || mb_y==0){
+        if(edges&1){ //(mb_x==0) {//implies mb_y!=0
+            int avg=(sum+4)>>3;
+            memset(dst+area1,avg,8+8+1);//areas 1,2 and 3 are averaged
+            sum+=avg*9;//8+1(egde pixel)
+        }else{//implies y==0 x!=0
+            int avg=(sum+4)>>3;
+            memset(dst+area3,avg, 1+16+8);//areas 3, 4,5,6
+            sum+=avg*9;
+        }
+    }else{
+        uint8_t c;
+        c=*(src-1-linesize);//the edge pixel,in the top line and left column
+        dst[area3]=c;
+        sum+=c;
+        //edge pixel is not part of min/max
+    }
+    (*range) = max_pix - min_pix;
+    sum += *(dst+area5) + *(dst+area5+1);
+    *psum = sum;
+}
+
+
+static const uint16_t zero_prediction_weights[64*2] = {
+    640,  640,  669,  480,  708,  354,  748, 257,  792, 198,  760, 143,  808, 101,  772,  72,
+    480,  669,  537,  537,  598,  416,  661, 316,  719, 250,  707, 185,  768, 134,  745,  97,
+    354,  708,  416,  598,  488,  488,  564, 388,  634, 317,  642, 241,  716, 179,  706, 132,
+    257,  748,  316,  661,  388,  564,  469, 469,  543, 395,  571, 311,  655, 238,  660, 180,
+    198,  792,  250,  719,  317,  634,  395, 543,  469, 469,  507, 380,  597, 299,  616, 231,
+    161,  855,  206,  788,  266,  710,  340, 623,  411, 548,  455, 455,  548, 366,  576, 288,
+    122,  972,  159,  914,  211,  842,  276, 758,  341, 682,  389, 584,  483, 483,  520, 390,
+    110, 1172,  144, 1107,  193, 1028,  254, 932,  317, 846,  366, 731,  458, 611,  499, 499
+};
+
+static void spacial_compensation_0(uint8_t *src , uint8_t *dst, int linesize){
+    int i,j;
+    int x,y;
+    unsigned int p;//power divided by 2
+    int a;
+    uint16_t left_sum[2][8];
+    uint16_t  top_sum[2][8];
+    memset(left_sum,0,2*8*sizeof(uint16_t));
+    memset( top_sum,0,2*8*sizeof(uint16_t));
+
+    for(i=0;i<8;i++){
+        a=src[area2+7-i]<<4;
+        for(j=0;j<8;j++){
+            p=abs(i-j);
+            left_sum[p&1][j]+= a>>(p>>1);
+        }
+    }
+
+    for(i=0;i<8;i++){
+        a=src[area4+i]<<4;
+        for(j=0;j<8;j++){
+            p=abs(i-j);
+            top_sum[p&1][j]+=   a>>(p>>1);
+        }
+    }
+    for(;i<10;i++){
+        a=src[area4+i]<<4;
+        for(j=5;j<8;j++){
+            p=abs(i-j);
+            top_sum[p&1][j]+=   a>>(p>>1);
+        }
+    }
+    for(;i<12;i++){
+        a=src[area4+i]<<4;
+        for(j=7;j<8;j++){
+            p=abs(i-j);
+            top_sum[p&1][j]+=   a>>(p>>1);
+        }
+    }
+
+    for(i=0;i<8;i++){
+        top_sum [0][i]+=(top_sum [1][i]*181 + 128 )>>8;//181 is sqrt(2)/2
+        left_sum[0][i]+=(left_sum[1][i]*181 + 128 )>>8;
+    }
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x] = (
+                      (uint32_t)top_sum [0][x]*zero_prediction_weights[y*16+x*2+0] +
+                      (uint32_t)left_sum[0][y]*zero_prediction_weights[y*16+x*2+1] +
+                       0x8000
+                      )>>16;
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_1(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=src[area4 + FFMIN(2*y+x+2, 15) ];
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_2(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=src[area4 +1+y+x];
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_3(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=src[area4 +((y+1)>>1)+x];
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_4(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=( src[area4+x] + src[area6+x] + 1 )>>1;
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_5(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            if(2*x-y<0){
+                dst[x]=src[area2+9+2*x-y];
+            }else{
+                dst[x]=src[area4 +x-((y+1)>>1)];
+            }
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_6(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=src[area3+x-y];
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_7(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            if(x-2*y>0){
+                dst[x]=( src[area3-1+x-2*y] + src[area3+x-2*y] + 1)>>1;
+            }else{
+                dst[x]=src[area2+8-y +(x>>1)];
+            }
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_8(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=( src[area1+7-y] + src[area2+7-y] + 1 )>>1;
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_9(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=src[area2+6-FFMIN(x+y,6)];
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_10(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=(src[area2+7-y]*(8-x)+src[area4+x]*x+4)>>3;
+        }
+        dst+=linesize;
+    }
+}
+static void spacial_compensation_11(uint8_t *src , uint8_t *dst, int linesize){
+    int x,y;
+
+    for(y=0;y<8;y++){
+        for(x=0;x<8;x++){
+            dst[x]=(src[area2+7-y]*y+src[area4+x]*(8-y)+4)>>3;
+        }
+        dst+=linesize;
+    }
+}
+
+static void x8_loop_filter(uint8_t * ptr, const int a_stride, const int b_stride, int quant){
+    int i,t;
+    int p0,p1,p2,p3,p4,p5,p6,p7,p8,p9;
+    int ql=(quant+10)>>3;
+
+    for(i=0; i<8; i++,ptr+=b_stride){
+        p0=ptr[-5*a_stride];
+        p1=ptr[-4*a_stride];
+        p2=ptr[-3*a_stride];
+        p3=ptr[-2*a_stride];
+        p4=ptr[-1*a_stride];
+        p5=ptr[ 0         ];
+        p6=ptr[ 1*a_stride];
+        p7=ptr[ 2*a_stride];
+        p8=ptr[ 3*a_stride];
+        p9=ptr[ 4*a_stride];
+
+        t=
+            (FFABS(p1-p2) <= ql) +
+            (FFABS(p2-p3) <= ql) +
+            (FFABS(p3-p4) <= ql) +
+            (FFABS(p4-p5) <= ql);
+        if(t>0){//you need at least 1 to be able to reach total score of 6.
+            t+=
+                (FFABS(p5-p6) <= ql) +
+                (FFABS(p6-p7) <= ql) +
+                (FFABS(p7-p8) <= ql) +
+                (FFABS(p8-p9) <= ql) +
+                (FFABS(p0-p1) <= ql);
+            if(t>=6){
+                int min,max;
+
+                min=max=p1;
+                min=FFMIN(min,p3); max=FFMAX(max,p3);
+                min=FFMIN(min,p5); max=FFMAX(max,p5);
+                min=FFMIN(min,p8); max=FFMAX(max,p8);
+                if(max-min<2*quant){//early stop
+                    min=FFMIN(min,p2); max=FFMAX(max,p2);
+                    min=FFMIN(min,p4); max=FFMAX(max,p4);
+                    min=FFMIN(min,p6); max=FFMAX(max,p6);
+                    min=FFMIN(min,p7); max=FFMAX(max,p7);
+                    if(max-min<2*quant){
+                        ptr[-2*a_stride]=(4*p2 + 3*p3 + 1*p7 + 4)>>3;
+                        ptr[-1*a_stride]=(3*p2 + 3*p4 + 2*p7 + 4)>>3;
+                        ptr[ 0         ]=(2*p2 + 3*p5 + 3*p7 + 4)>>3;
+                        ptr[ 1*a_stride]=(1*p2 + 3*p6 + 4*p7 + 4)>>3;
+                        continue;
+                    };
+                }
+            }
+        }
+        {
+            int x,x0,x1,x2;
+            int m;
+
+            x0 =   (2*p3 - 5*p4 + 5*p5 - 2*p6 + 4)>>3;
+            if(FFABS(x0) < quant){
+                x1=(2*p1 - 5*p2 + 5*p3 - 2*p4 + 4)>>3;
+                x2=(2*p5 - 5*p6 + 5*p7 - 2*p8 + 4)>>3;
+
+                x=FFABS(x0) - FFMIN( FFABS(x1), FFABS(x2) );
+                m=p4-p5;
+
+                if( x > 0 && (m^x0) <0){
+                    int32_t sign;
+
+                    sign=m>>31;
+                    m=(m^sign)-sign;//abs(m)
+                    m>>=1;
+
+                    x=(5*x)>>3;
+
+                    if(x>m) x=m;
+
+                    x=(x^sign)-sign;
+
+                    ptr[-1*a_stride] -= x;
+                    ptr[ 0]          += x;
+                }
+            }
+        }
+    }
+}
+
+static void x8_h_loop_filter(uint8_t *src, int stride, int qscale){
+    x8_loop_filter(src, stride, 1, qscale);
+}
+
+static void x8_v_loop_filter(uint8_t *src, int stride, int qscale){
+    x8_loop_filter(src, 1, stride, qscale);
+}
+
+void ff_intrax8dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
+    dsp->x8_h_loop_filter=x8_h_loop_filter;
+    dsp->x8_v_loop_filter=x8_v_loop_filter;
+    dsp->x8_setup_spacial_compensation=x8_setup_spacial_compensation;
+    dsp->x8_spacial_compensation[0]=spacial_compensation_0;
+    dsp->x8_spacial_compensation[1]=spacial_compensation_1;
+    dsp->x8_spacial_compensation[2]=spacial_compensation_2;
+    dsp->x8_spacial_compensation[3]=spacial_compensation_3;
+    dsp->x8_spacial_compensation[4]=spacial_compensation_4;
+    dsp->x8_spacial_compensation[5]=spacial_compensation_5;
+    dsp->x8_spacial_compensation[6]=spacial_compensation_6;
+    dsp->x8_spacial_compensation[7]=spacial_compensation_7;
+    dsp->x8_spacial_compensation[8]=spacial_compensation_8;
+    dsp->x8_spacial_compensation[9]=spacial_compensation_9;
+    dsp->x8_spacial_compensation[10]=spacial_compensation_10;
+    dsp->x8_spacial_compensation[11]=spacial_compensation_11;
+}
+
+#if 0
+static void wmv2_loop_filter(uint8_t * ptr, const int a_stride, const int b_stride, int quant){
+    int i,t;
+    int p0,p1,p2,p3,p4,p5,p6,p7,p8,p9;
+
+    for(i=0; i<8; i++,ptr+=b_stride){
+        p1=ptr[-4*a_stride];
+        p2=ptr[-3*a_stride];
+        p3=ptr[-2*a_stride];
+        p4=ptr[-1*a_stride];
+        p5=ptr[ 0         ];
+        p6=ptr[ 1*a_stride];
+        p7=ptr[ 2*a_stride];
+        p8=ptr[ 3*a_stride];
+
+        {
+            int x,x0,x1,x2;
+            int m;
+
+            x0 =   (2*p3 - 5*p4 + 5*p5 - 2*p6 + 4)>>3;
+            if(abs(x0) < quant){
+                x1=(2*p1 - 5*p2 + 5*p3 - 2*p4 + 4)>>3;
+                x2=(2*p5 - 5*p6 + 5*p7 - 2*p8 + 4)>>3;
+
+                x=abs(x0) - FFMIN( abs(x1), abs(x2) );
+                m=p4-p5;
+
+                if( x > 0 && (m^x0) < 0){
+                    int32_t sign;
+
+                    sign=m>>31;
+                    m=(m^sign)-sign;//abs(m)
+                    m>>=1;
+
+                    x=(5*x)>>3;
+
+                    if(x>m) x=m;
+
+                    x=(x^sign)-sign;
+
+                    ptr[-1*a_stride] -= x;
+                    ptr[ 0]          += x;
+                }
+            }
+        }
+    }
+}
+#endif
diff --git a/libavcodec/intrax8huf.h b/libavcodec/intrax8huf.h
new file mode 100644
index 0000000000..6d3653e719
--- /dev/null
+++ b/libavcodec/intrax8huf.h
@@ -0,0 +1,913 @@
+/*
+ * 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
+ */
+
+#include <inttypes.h>
+
+
+const uint16_t ff_x8_orient_lowquant_table[4][12][2]={
+    {//0
+        {0x0000,  1}, {0x0004,  3}, {0x0005,  3}, {0x000C,  4},
+        {0x000D,  4}, {0x0038,  6}, {0x001D,  5}, {0x0039,  6},
+        {0x003C,  6}, {0x003D,  6}, {0x003E,  6}, {0x003F,  6},
+    },{//1
+        {0x0000,  5}, {0x0001,  5}, {0x0002,  5}, {0x0001,  2},
+        {0x0002,  2}, {0x0002,  4}, {0x0003,  5}, {0x0006,  3},
+        {0x0003,  4}, {0x000E,  4}, {0x001E,  5}, {0x001F,  5},
+    },{//2
+        {0x0000,  2}, {0x0001,  2}, {0x0004,  3}, {0x0005,  3},
+        {0x0006,  3}, {0x0038,  6}, {0x0039,  6}, {0x001D,  5},
+        {0x003C,  6}, {0x003D,  6}, {0x003E,  6}, {0x003F,  6},
+    },{//3
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0001,  2},
+        {0x0002,  2}, {0x0018,  5}, {0x0019,  5}, {0x000D,  4},
+        {0x001C,  5}, {0x001D,  5}, {0x001E,  5}, {0x001F,  5},
+    }
+};
+
+const uint16_t ff_x8_orient_highquant_table[2][12][2]={
+    {//0
+        {0x0000,  2}, {0x0001,  2}, {0x0004,  3}, {0x0005,  3},
+        {0x0006,  3}, {0x0038,  6}, {0x001D,  5}, {0x0039,  6},
+        {0x003C,  6}, {0x003D,  6}, {0x003E,  6}, {0x003F,  6},
+    },{//1
+        {0x0000,  1}, {0x0002,  2}, {0x0006,  3}, {0x001C,  5},
+        {0x001D,  5}, {0x0078,  7}, {0x003D,  6}, {0x0079,  7},
+        {0x007C,  7}, {0x007D,  7}, {0x007E,  7}, {0x007F,  7},
+    }
+};
+#define MAX_OR_VLC_BITS 7
+
+
+const uint16_t ff_x8_dc_lowquant_table[8][34][2]={
+    {//0
+        {0x0000,  5}, {0x0001,  4}, {0x0001,  5}, {0x0004,  5},
+        {0x0005,  5}, {0x0006,  5}, {0x000E,  6}, {0x000F,  6},
+        {0x0040,  8}, {0x0041,  8}, {0x0840, 13}, {0x0841, 13},
+        {0x0842, 13}, {0x0843, 13}, {0x0844, 13}, {0x0845, 13},
+        {0x0846, 13}, {0x0002,  2}, {0x0003,  2}, {0x0003,  3},
+        {0x0005,  4}, {0x0009,  5}, {0x0011,  6}, {0x0043,  8},
+        {0x0085,  9}, {0x0847, 13}, {0x0848, 13}, {0x0849, 13},
+        {0x084A, 13}, {0x084B, 13}, {0x084C, 13}, {0x084D, 13},
+        {0x084E, 13}, {0x084F, 13},
+    },{//1
+        {0x0000,  4}, {0x0001,  3}, {0x0002,  3}, {0x0001,  4},
+        {0x0006,  4}, {0x0004,  3}, {0x0007,  4}, {0x0005,  3},
+        {0x000C,  4}, {0x000D,  4}, {0x001C,  5}, {0x003A,  6},
+        {0x01D8,  9}, {0x01D9,  9}, {0x1DA0, 13}, {0x1DA1, 13},
+        {0x1DA2, 13}, {0x003C,  6}, {0x003D,  6}, {0x003E,  6},
+        {0x0077,  7}, {0x01DB,  9}, {0x007E,  7}, {0x00FE,  8},
+        {0x01FE,  9}, {0x1DA3, 13}, {0x1DA4, 13}, {0x1DA5, 13},
+        {0x0ED3, 12}, {0x0ED4, 12}, {0x01FF,  9}, {0x0ED5, 12},
+        {0x0ED6, 12}, {0x0ED7, 12},
+    },{//2
+        {0x0000,  4}, {0x0001,  3}, {0x0002,  3}, {0x0001,  4},
+        {0x0006,  4}, {0x0007,  4}, {0x0008,  4}, {0x0009,  4},
+        {0x0028,  6}, {0x0029,  6}, {0x0054,  7}, {0x0055,  7},
+        {0x0AC0, 12}, {0x0AC1, 12}, {0x0AC2, 12}, {0x0AC3, 12},
+        {0x0AC4, 12}, {0x000B,  4}, {0x0006,  3}, {0x000E,  4},
+        {0x001E,  5}, {0x003E,  6}, {0x003F,  6}, {0x0057,  7},
+        {0x00AD,  8}, {0x0AC5, 12}, {0x0AC6, 12}, {0x0AC7, 12},
+        {0x0AC8, 12}, {0x0AC9, 12}, {0x0ACA, 12}, {0x0ACB, 12},
+        {0x0566, 11}, {0x0567, 11},
+    },{//3
+        {0x0000,  4}, {0x0001,  2}, {0x0001,  3}, {0x0004,  3},
+        {0x0005,  3}, {0x0006,  3}, {0x0001,  4}, {0x000E,  4},
+        {0x003C,  6}, {0x003D,  6}, {0x007C,  7}, {0x00FA,  8},
+        {0x3EC0, 14}, {0x3EC1, 14}, {0x3EC2, 14}, {0x3EC3, 14},
+        {0x1F62, 13}, {0x01F7,  9}, {0x007E,  7}, {0x00FE,  8},
+        {0x00FF,  8}, {0x1F63, 13}, {0x1F64, 13}, {0x1F65, 13},
+        {0x1F66, 13}, {0x1F67, 13}, {0x1F68, 13}, {0x1F69, 13},
+        {0x1F6A, 13}, {0x1F6B, 13}, {0x1F6C, 13}, {0x1F6D, 13},
+        {0x1F6E, 13}, {0x1F6F, 13},
+    },{//4
+        {0x0000,  7}, {0x0001,  7}, {0x0002,  7}, {0x0003,  7},
+        {0x0004,  7}, {0x0005,  7}, {0x0006,  7}, {0x0007,  7},
+        {0x0008,  7}, {0x0009,  7}, {0x000A,  7}, {0x000B,  7},
+        {0x000C,  7}, {0x000D,  7}, {0x000E,  7}, {0x000F,  7},
+        {0x0010,  7}, {0x0001,  1}, {0x0001,  2}, {0x0011,  7},
+        {0x0012,  7}, {0x0013,  7}, {0x0014,  7}, {0x0015,  7},
+        {0x0016,  7}, {0x0017,  7}, {0x0018,  7}, {0x0019,  7},
+        {0x001A,  7}, {0x001B,  7}, {0x001C,  7}, {0x001D,  7},
+        {0x001E,  7}, {0x001F,  7},
+    },{//5
+        {0x0000,  5}, {0x0001,  4}, {0x0001,  5}, {0x0008,  6},
+        {0x0009,  6}, {0x000A,  6}, {0x0016,  7}, {0x000C,  6},
+        {0x0017,  7}, {0x000D,  6}, {0x0038,  8}, {0x001D,  7},
+        {0x0039,  8}, {0x0780, 13}, {0x0781, 13}, {0x0782, 13},
+        {0x0783, 13}, {0x0002,  3}, {0x0001,  1}, {0x0003,  3},
+        {0x001F,  7}, {0x003D,  8}, {0x0079,  9}, {0x0784, 13},
+        {0x0785, 13}, {0x0786, 13}, {0x0787, 13}, {0x0788, 13},
+        {0x0789, 13}, {0x078A, 13}, {0x078B, 13}, {0x078C, 13},
+        {0x078D, 13}, {0x03C7, 12},
+    },{//6
+        {0x0000,  4}, {0x0001,  2}, {0x0001,  3}, {0x0004,  3},
+        {0x0001,  4}, {0x000A,  4}, {0x0016,  5}, {0x002E,  6},
+        {0x005E,  7}, {0x005F,  7}, {0x00C0,  8}, {0x3040, 14},
+        {0x3041, 14}, {0x0305, 10}, {0x0183,  9}, {0x3042, 14},
+        {0x3043, 14}, {0x000D,  4}, {0x0007,  3}, {0x0019,  5},
+        {0x0031,  6}, {0x00C2,  8}, {0x00C3,  8}, {0x3044, 14},
+        {0x3045, 14}, {0x3046, 14}, {0x3047, 14}, {0x3048, 14},
+        {0x3049, 14}, {0x304A, 14}, {0x304B, 14}, {0x304C, 14},
+        {0x304D, 14}, {0x1827, 13},
+    },{//7
+        {0x0000,  6}, {0x0001,  6}, {0x0002,  6}, {0x0006,  7},
+        {0x0007,  7}, {0x0004,  6}, {0x0005,  6}, {0x0006,  6},
+        {0x000E,  7}, {0x001E,  8}, {0x001F,  8}, {0x0040,  9},
+        {0x0082, 10}, {0x0830, 14}, {0x0831, 14}, {0x0832, 14},
+        {0x0833, 14}, {0x0001,  1}, {0x0001,  2}, {0x0003,  4},
+        {0x0005,  5}, {0x0009,  6}, {0x0011,  7}, {0x0021,  8},
+        {0x0834, 14}, {0x0835, 14}, {0x0836, 14}, {0x0837, 14},
+        {0x0838, 14}, {0x0839, 14}, {0x083A, 14}, {0x083B, 14},
+        {0x041E, 13}, {0x041F, 13},
+    }
+};
+
+const uint16_t ff_x8_dc_highquant_table[8][34][2]={
+    {//0
+        {0x0000,  5}, {0x0001,  4}, {0x0002,  4}, {0x0001,  5},
+        {0x0006,  5}, {0x0004,  4}, {0x0007,  5}, {0x000A,  5},
+        {0x002C,  7}, {0x002D,  7}, {0x05C0, 12}, {0x05C1, 12},
+        {0x05C2, 12}, {0x05C3, 12}, {0x05C4, 12}, {0x05C5, 12},
+        {0x05C6, 12}, {0x0003,  3}, {0x0002,  2}, {0x0006,  3},
+        {0x000E,  4}, {0x001E,  5}, {0x001F,  5}, {0x002F,  7},
+        {0x005D,  8}, {0x05C7, 12}, {0x05C8, 12}, {0x05C9, 12},
+        {0x05CA, 12}, {0x05CB, 12}, {0x05CC, 12}, {0x05CD, 12},
+        {0x05CE, 12}, {0x05CF, 12},
+    },{//1
+        {0x0000,  3}, {0x0001,  3}, {0x0002,  3}, {0x0006,  4},
+        {0x0007,  4}, {0x0004,  3}, {0x000A,  4}, {0x000B,  4},
+        {0x0030,  6}, {0x0062,  7}, {0x0063,  7}, {0x0640, 11},
+        {0x0641, 11}, {0x0642, 11}, {0x0643, 11}, {0x0644, 11},
+        {0x0645, 11}, {0x0033,  6}, {0x000D,  4}, {0x001C,  5},
+        {0x001D,  5}, {0x003C,  6}, {0x001F,  5}, {0x0065,  7},
+        {0x007A,  7}, {0x0646, 11}, {0x007B,  7}, {0x0647, 11},
+        {0x0648, 11}, {0x0649, 11}, {0x064A, 11}, {0x064B, 11},
+        {0x0326, 10}, {0x0327, 10},
+    },{//2
+        {0x0000,  7}, {0x0001,  7}, {0x0001,  6}, {0x0004,  7},
+        {0x0003,  6}, {0x0005,  7}, {0x0010,  8}, {0x0011,  8},
+        {0x0240, 13}, {0x0241, 13}, {0x0242, 13}, {0x0243, 13},
+        {0x0244, 13}, {0x0245, 13}, {0x0246, 13}, {0x0247, 13},
+        {0x0124, 12}, {0x0001,  1}, {0x0001,  2}, {0x0001,  3},
+        {0x0003,  5}, {0x0005,  6}, {0x0013,  8}, {0x0125, 12},
+        {0x0126, 12}, {0x0127, 12}, {0x0128, 12}, {0x0129, 12},
+        {0x012A, 12}, {0x012B, 12}, {0x012C, 12}, {0x012D, 12},
+        {0x012E, 12}, {0x012F, 12},
+    },{//3
+        {0x0000,  4}, {0x0001,  3}, {0x0002,  3}, {0x0001,  4},
+        {0x0006,  4}, {0x0004,  3}, {0x0005,  3}, {0x0006,  3},
+        {0x000E,  5}, {0x000F,  5}, {0x0070,  7}, {0x0710, 11},
+        {0x0711, 11}, {0x0712, 11}, {0x0713, 11}, {0x0714, 11},
+        {0x0715, 11}, {0x001D,  5}, {0x0072,  7}, {0x003C,  6},
+        {0x003D,  6}, {0x0073,  7}, {0x007C,  7}, {0x007D,  7},
+        {0x007E,  7}, {0x0716, 11}, {0x0717, 11}, {0x0718, 11},
+        {0x007F,  7}, {0x0719, 11}, {0x071A, 11}, {0x071B, 11},
+        {0x038E, 10}, {0x038F, 10},
+    },{//4
+        {0x0000,  8}, {0x0001,  7}, {0x0002,  7}, {0x0003,  7},
+        {0x0002,  9}, {0x0008,  8}, {0x0003,  9}, {0x0240, 14},
+        {0x0241, 14}, {0x0242, 14}, {0x0243, 14}, {0x0244, 14},
+        {0x0245, 14}, {0x0246, 14}, {0x0247, 14}, {0x0124, 13},
+        {0x0125, 13}, {0x0001,  2}, {0x0001,  1}, {0x0001,  3},
+        {0x0001,  4}, {0x0003,  6}, {0x0005,  7}, {0x0013,  9},
+        {0x0126, 13}, {0x0127, 13}, {0x0128, 13}, {0x0129, 13},
+        {0x012A, 13}, {0x012B, 13}, {0x012C, 13}, {0x012D, 13},
+        {0x012E, 13}, {0x012F, 13},
+    },{//5
+        {0x0000,  7}, {0x0001,  7}, {0x0001,  6}, {0x0002,  6},
+        {0x0003,  6}, {0x0004,  6}, {0x0005,  6}, {0x0006,  6},
+        {0x0007,  6}, {0x0008,  6}, {0x0009,  6}, {0x000A,  6},
+        {0x000B,  6}, {0x000C,  6}, {0x000D,  6}, {0x000E,  6},
+        {0x000F,  6}, {0x0010,  6}, {0x0011,  6}, {0x0012,  6},
+        {0x0013,  6}, {0x0014,  6}, {0x0015,  6}, {0x0016,  6},
+        {0x0017,  6}, {0x0018,  6}, {0x0019,  6}, {0x0001,  1},
+        {0x001A,  6}, {0x001B,  6}, {0x001C,  6}, {0x001D,  6},
+        {0x001E,  6}, {0x001F,  6},
+    },{//6
+        {0x0000,  5}, {0x0001,  4}, {0x0001,  5}, {0x0004,  5},
+        {0x000A,  6}, {0x0006,  5}, {0x000B,  6}, {0x000E,  6},
+        {0x003C,  8}, {0x003D,  8}, {0x07C0, 13}, {0x07C1, 13},
+        {0x07C2, 13}, {0x07C3, 13}, {0x07C4, 13}, {0x07C5, 13},
+        {0x07C6, 13}, {0x0001,  2}, {0x0002,  2}, {0x0006,  3},
+        {0x000E,  4}, {0x001E,  5}, {0x001F,  5}, {0x003F,  8},
+        {0x007D,  9}, {0x07C7, 13}, {0x07C8, 13}, {0x07C9, 13},
+        {0x07CA, 13}, {0x07CB, 13}, {0x07CC, 13}, {0x07CD, 13},
+        {0x07CE, 13}, {0x07CF, 13},
+    },{//7
+        {0x0000,  7}, {0x0001,  7}, {0x0002,  7}, {0x0003,  7},
+        {0x0004,  7}, {0x0005,  7}, {0x0006,  7}, {0x0007,  7},
+        {0x0008,  7}, {0x0009,  7}, {0x000A,  7}, {0x000B,  7},
+        {0x000C,  7}, {0x000D,  7}, {0x000E,  7}, {0x000F,  7},
+        {0x0010,  7}, {0x0001,  1}, {0x0001,  2}, {0x0011,  7},
+        {0x0012,  7}, {0x0013,  7}, {0x0014,  7}, {0x0015,  7},
+        {0x0016,  7}, {0x0017,  7}, {0x0018,  7}, {0x0019,  7},
+        {0x001A,  7}, {0x001B,  7}, {0x001C,  7}, {0x001D,  7},
+        {0x001E,  7}, {0x001F,  7},
+    }
+};
+#define MAX_DC_VLC_BITS 14
+
+
+const uint16_t ff_x8_ac0_lowquant_table[8][77][2]={
+    {//0
+        {0x0000,  2}, {0x0002,  3}, {0x0006,  4}, {0x000E,  5},
+        {0x001E,  6}, {0x003E,  7}, {0x003F,  7}, {0x0040,  7},
+        {0x0104,  9}, {0x0083,  8}, {0x0084,  8}, {0x0085,  8},
+        {0x020A, 10}, {0x020B, 10}, {0x0218, 10}, {0x0219, 10},
+        {0x0009,  4}, {0x0044,  7}, {0x010D,  9}, {0x021C, 10},
+        {0x0023,  6}, {0x0045,  7}, {0x0050,  7}, {0x000B,  4},
+        {0x000C,  4}, {0x0015,  5}, {0x001A,  5}, {0x001B,  5},
+        {0x0029,  6}, {0x0038,  6}, {0x0039,  6}, {0x003A,  6},
+        {0x0051,  7}, {0x0076,  7}, {0x0077,  7}, {0x0078,  7},
+        {0x0079,  7}, {0x007A,  7}, {0x007B,  7}, {0x00F8,  8},
+        {0x010F,  9}, {0x021D, 10}, {0x3E40, 14}, {0x3E41, 14},
+        {0x3E42, 14}, {0x3E43, 14}, {0x03E5, 10}, {0x3E44, 14},
+        {0x01F3,  9}, {0x3E45, 14}, {0x3E46, 14}, {0x3E47, 14},
+        {0x00FA,  8}, {0x3E48, 14}, {0x3E49, 14}, {0x3E4A, 14},
+        {0x3E4B, 14}, {0x03EC, 10}, {0x3E4C, 14}, {0x007E,  7},
+        {0x00FE,  8}, {0x00FF,  8}, {0x01F7,  9}, {0x3E4D, 14},
+        {0x3E4E, 14}, {0x3E4F, 14}, {0x3ED0, 14}, {0x3ED1, 14},
+        {0x3ED2, 14}, {0x3ED3, 14}, {0x3ED4, 14}, {0x3ED5, 14},
+        {0x1F6B, 13}, {0x1F6C, 13}, {0x1F6D, 13}, {0x1F6E, 13},
+        {0x1F6F, 13},
+    },{//1
+        {0x0000,  3}, {0x0004,  5}, {0x0014,  7}, {0x000B,  6},
+        {0x000C,  6}, {0x002A,  8}, {0x002B,  8}, {0x0034,  8},
+        {0x0D40, 14}, {0x0D41, 14}, {0x001B,  7}, {0x0D42, 14},
+        {0x0D43, 14}, {0x0D44, 14}, {0x0D45, 14}, {0x0D46, 14},
+        {0x000E,  6}, {0x003C,  8}, {0x0D47, 14}, {0x003D,  8},
+        {0x0D48, 14}, {0x0D49, 14}, {0x0D4A, 14}, {0x0001,  2},
+        {0x0004,  3}, {0x0014,  5}, {0x000B,  4}, {0x000C,  4},
+        {0x000D,  4}, {0x002A,  6}, {0x001F,  7}, {0x0056,  7},
+        {0x0057,  7}, {0x0070,  7}, {0x00E2,  8}, {0x0072,  7},
+        {0x003A,  6}, {0x003B,  6}, {0x003C,  6}, {0x003D,  6},
+        {0x00E3,  8}, {0x0D4B, 14}, {0x00E6,  8}, {0x00E7,  8},
+        {0x00F8,  8}, {0x0D4C, 14}, {0x0D4D, 14}, {0x0D4E, 14},
+        {0x00F9,  8}, {0x0D4F, 14}, {0x0D50, 14}, {0x0D51, 14},
+        {0x06A9, 13}, {0x06AA, 13}, {0x06AB, 13}, {0x06AC, 13},
+        {0x06AD, 13}, {0x06AE, 13}, {0x06AF, 13}, {0x003F,  6},
+        {0x06B0, 13}, {0x06B1, 13}, {0x06B2, 13}, {0x06B3, 13},
+        {0x06B4, 13}, {0x007D,  7}, {0x06B5, 13}, {0x06B6, 13},
+        {0x06B7, 13}, {0x06B8, 13}, {0x06B9, 13}, {0x06BA, 13},
+        {0x06BB, 13}, {0x06BC, 13}, {0x06BD, 13}, {0x06BE, 13},
+        {0x06BF, 13},
+    },{//2
+        {0x0000,  2}, {0x0002,  3}, {0x0003,  3}, {0x0008,  4},
+        {0x0012,  5}, {0x0013,  5}, {0x0028,  6}, {0x0029,  6},
+        {0x0054,  7}, {0x0055,  7}, {0x0056,  7}, {0x00AE,  8},
+        {0x00AF,  8}, {0x00B0,  8}, {0x0162,  9}, {0x02C6, 10},
+        {0x000C,  4}, {0x002D,  6}, {0x00B2,  8}, {0x0166,  9},
+        {0x002E,  6}, {0x0167,  9}, {0x00BC,  8}, {0x001A,  5},
+        {0x0036,  6}, {0x0037,  6}, {0x0038,  6}, {0x005F,  7},
+        {0x0072,  7}, {0x0073,  7}, {0x0074,  7}, {0x0075,  7},
+        {0x0076,  7}, {0x0077,  7}, {0x0078,  7}, {0x0079,  7},
+        {0x007A,  7}, {0x007B,  7}, {0x00BD,  8}, {0xB1C0, 16},
+        {0xB1C1, 16}, {0x58E1, 15}, {0x0B1D, 12}, {0x58E2, 15},
+        {0x58E3, 15}, {0x58E4, 15}, {0x00F8,  8}, {0x03E4, 10},
+        {0x01F3,  9}, {0x0B1E, 12}, {0x58E5, 15}, {0x58E6, 15},
+        {0x00FA,  8}, {0x58E7, 15}, {0x58F8, 15}, {0x58F9, 15},
+        {0x58FA, 15}, {0x01F6,  9}, {0x58FB, 15}, {0x007E,  7},
+        {0x00FE,  8}, {0x00FF,  8}, {0x07CA, 11}, {0x0F96, 12},
+        {0x58FC, 15}, {0x58FD, 15}, {0x58FE, 15}, {0x58FF, 15},
+        {0x7CB8, 15}, {0x7CB9, 15}, {0x7CBA, 15}, {0x7CBB, 15},
+        {0x7CBC, 15}, {0x01F7,  9}, {0x7CBD, 15}, {0x7CBE, 15},
+        {0x7CBF, 15},
+    },{//3
+        {0x0000,  2}, {0x0002,  3}, {0x0006,  4}, {0x000E,  5},
+        {0x000F,  5}, {0x0020,  6}, {0x0021,  6}, {0x0044,  7},
+        {0x0045,  7}, {0x008C,  8}, {0x008D,  8}, {0x011C,  9},
+        {0x011D,  9}, {0x011E,  9}, {0x023E, 10}, {0x023F, 10},
+        {0x0005,  3}, {0x0012,  5}, {0x004C,  7}, {0x004D,  7},
+        {0x000C,  4}, {0x004E,  7}, {0x001A,  5}, {0x0036,  6},
+        {0x004F,  7}, {0x006E,  7}, {0x006F,  7}, {0x00E0,  8},
+        {0x00E1,  8}, {0x00E2,  8}, {0x00E3,  8}, {0x00E4,  8},
+        {0x00E5,  8}, {0x01CC,  9}, {0x00E7,  8}, {0x00E8,  8},
+        {0x00E9,  8}, {0x01CD,  9}, {0x0750, 11}, {0x03A9, 10},
+        {0x0751, 11}, {0x7540, 15}, {0x03AB, 10}, {0x7541, 15},
+        {0x7542, 15}, {0x7543, 15}, {0x01D6,  9}, {0x0755, 11},
+        {0x0076,  7}, {0x0EA9, 12}, {0x7544, 15}, {0x7545, 15},
+        {0x001E,  5}, {0x0077,  7}, {0x00F8,  8}, {0x03AE, 10},
+        {0x075E, 11}, {0x007D,  7}, {0x03E4, 10}, {0x00FC,  8},
+        {0x00FD,  8}, {0x03E5, 10}, {0x03E6, 10}, {0x0EBE, 12},
+        {0x7546, 15}, {0x07CE, 11}, {0x7547, 15}, {0x75F8, 15},
+        {0x75F9, 15}, {0x75FA, 15}, {0x75FB, 15}, {0x75FC, 15},
+        {0x75FD, 15}, {0x007F,  7}, {0x3AFF, 14}, {0x0F9E, 12},
+        {0x0F9F, 12},
+    },{//4
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0012,  6}, {0x0013,  6}, {0x0014,  6}, {0x002A,  7},
+        {0x0016,  6}, {0x002B,  7}, {0x005C,  8}, {0x005D,  8},
+        {0x005E,  8}, {0x00BE,  9}, {0x00BF,  9}, {0x0060,  8},
+        {0x0007,  4}, {0x000D,  5}, {0x0019,  6}, {0x0020,  6},
+        {0x0009,  4}, {0x0021,  6}, {0x0011,  5}, {0x0014,  5},
+        {0x002A,  6}, {0x002B,  6}, {0x002C,  6}, {0x002D,  6},
+        {0x002E,  6}, {0x002F,  6}, {0x0030,  6}, {0x0031,  7},
+        {0x0062,  7}, {0x0063,  7}, {0x0064,  7}, {0x0065,  7},
+        {0x0066,  7}, {0x0061,  8}, {0x0670, 11}, {0x0068,  7},
+        {0x0069,  7}, {0x00CF,  8}, {0x019D,  9}, {0x01A8,  9},
+        {0x01A9,  9}, {0x0339, 10}, {0x01AA,  9}, {0x0356, 10},
+        {0x0036,  6}, {0x00D6,  8}, {0x6710, 15}, {0x6711, 15},
+        {0x000E,  4}, {0x006E,  7}, {0x01AE,  9}, {0x6712, 15},
+        {0x6713, 15}, {0x003C,  6}, {0x0357, 10}, {0x006F,  7},
+        {0x00F4,  8}, {0x00F5,  8}, {0x035E, 10}, {0x01EC,  9},
+        {0x6714, 15}, {0x01ED,  9}, {0x035F, 10}, {0x03DC, 10},
+        {0x03DD, 10}, {0x6715, 15}, {0x338B, 14}, {0x338C, 14},
+        {0x338D, 14}, {0x001F,  5}, {0x01EF,  9}, {0x338E, 14},
+        {0x338F, 14},
+    },{//5
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x000B,  5},
+        {0x0018,  6}, {0x0019,  6}, {0x0034,  7}, {0x006A,  8},
+        {0x006B,  8}, {0x006C,  8}, {0x00DA,  9}, {0x036C, 11},
+        {0x006E,  8}, {0x01B7, 10}, {0x036D, 11}, {0x3780, 15},
+        {0x0004,  3}, {0x000E,  5}, {0x001E,  6}, {0x003E,  7},
+        {0x000A,  4}, {0x002C,  6}, {0x0017,  5}, {0x002D,  6},
+        {0x003F,  7}, {0x00C0,  8}, {0x0061,  7}, {0x00C1,  8},
+        {0x0062,  7}, {0x00C6,  8}, {0x0064,  7}, {0x00C7,  8},
+        {0x00CA,  8}, {0x00DF,  9}, {0x0196,  9}, {0x0197,  9},
+        {0x0198,  9}, {0x0199,  9}, {0x0379, 11}, {0x019A,  9},
+        {0x01BD, 10}, {0x066C, 11}, {0x3781, 15}, {0x0337, 10},
+        {0x066D, 11}, {0x0670, 11}, {0x0339, 10}, {0x0671, 11},
+        {0x0034,  6}, {0x00CF,  8}, {0x3782, 15}, {0x3783, 15},
+        {0x000E,  4}, {0x001B,  5}, {0x006A,  7}, {0x006B,  7},
+        {0x019D,  9}, {0x003C,  6}, {0x00F4,  8}, {0x00F5,  8},
+        {0x03D8, 10}, {0x07B2, 11}, {0x3784, 15}, {0x03DA, 10},
+        {0x3785, 15}, {0x03DB, 10}, {0x03DC, 10}, {0x3786, 15},
+        {0x3787, 15}, {0x1BC4, 14}, {0x1BC5, 14}, {0x1BC6, 14},
+        {0x1BC7, 14}, {0x001F,  5}, {0x03DD, 10}, {0x07B3, 11},
+        {0x01EF,  9},
+    },{//6
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x0016,  6},
+        {0x0017,  6}, {0x0060,  8}, {0x00C2,  9}, {0x0186, 10},
+        {0x0187, 10}, {0x00C4,  9}, {0x3140, 15}, {0x3141, 15},
+        {0x018B, 10}, {0x3142, 15}, {0x018C, 10}, {0x3143, 15},
+        {0x0007,  4}, {0x000D,  5}, {0x0064,  8}, {0x0065,  8},
+        {0x0010,  5}, {0x00C7,  9}, {0x0066,  8}, {0x0005,  3},
+        {0x0006,  3}, {0x0009,  4}, {0x0011,  5}, {0x0038,  6},
+        {0x0039,  6}, {0x0074,  7}, {0x0075,  7}, {0x0076,  7},
+        {0x0067,  8}, {0x00EE,  8}, {0x01DE,  9}, {0x00F0,  8},
+        {0x018D, 10}, {0x3144, 15}, {0x01DF,  9}, {0x003D,  6},
+        {0x003E,  6}, {0x01E2,  9}, {0x03C6, 10}, {0x00F2,  8},
+        {0x00F3,  8}, {0x03C7, 10}, {0x3145, 15}, {0x3146, 15},
+        {0x01F8,  9}, {0x3147, 15}, {0x3148, 15}, {0x3149, 15},
+        {0x00FD,  8}, {0x314A, 15}, {0x314B, 15}, {0x314C, 15},
+        {0x314D, 15}, {0x01F9,  9}, {0x314E, 15}, {0x01FC,  9},
+        {0x314F, 15}, {0x3150, 15}, {0x3151, 15}, {0x3152, 15},
+        {0x3153, 15}, {0x03FA, 10}, {0x03FB, 10}, {0x3154, 15},
+        {0x3155, 15}, {0x3156, 15}, {0x3157, 15}, {0x3158, 15},
+        {0x3159, 15}, {0x00FF,  8}, {0x18AD, 14}, {0x18AE, 14},
+        {0x18AF, 14},
+    },{//7
+        {0x0000,  4}, {0x0080, 11}, {0x0081, 11}, {0x0082, 11},
+        {0x0083, 11}, {0x0084, 11}, {0x0085, 11}, {0x0086, 11},
+        {0x0087, 11}, {0x0088, 11}, {0x0089, 11}, {0x008A, 11},
+        {0x008B, 11}, {0x008C, 11}, {0x008D, 11}, {0x008E, 11},
+        {0x008F, 11}, {0x0048, 10}, {0x0049, 10}, {0x004A, 10},
+        {0x004B, 10}, {0x004C, 10}, {0x004D, 10}, {0x0001,  1},
+        {0x0001,  2}, {0x004E, 10}, {0x0002,  4}, {0x0003,  4},
+        {0x004F, 10}, {0x0050, 10}, {0x0051, 10}, {0x0052, 10},
+        {0x0053, 10}, {0x0054, 10}, {0x0055, 10}, {0x0056, 10},
+        {0x0057, 10}, {0x0058, 10}, {0x0059, 10}, {0x005A, 10},
+        {0x005B, 10}, {0x005C, 10}, {0x005D, 10}, {0x005E, 10},
+        {0x005F, 10}, {0x0060, 10}, {0x0061, 10}, {0x0062, 10},
+        {0x0063, 10}, {0x0064, 10}, {0x0065, 10}, {0x0066, 10},
+        {0x0067, 10}, {0x0068, 10}, {0x0069, 10}, {0x006A, 10},
+        {0x006B, 10}, {0x006C, 10}, {0x006D, 10}, {0x006E, 10},
+        {0x006F, 10}, {0x0070, 10}, {0x0071, 10}, {0x0072, 10},
+        {0x0073, 10}, {0x0074, 10}, {0x0075, 10}, {0x0076, 10},
+        {0x0077, 10}, {0x0078, 10}, {0x0079, 10}, {0x007A, 10},
+        {0x007B, 10}, {0x007C, 10}, {0x007D, 10}, {0x007E, 10},
+        {0x007F, 10},
+    }
+};
+
+const uint16_t ff_x8_ac0_highquant_table[8][77][2]={
+    {//0
+        {0x0000,  3}, {0x0002,  4}, {0x000C,  6}, {0x000D,  6},
+        {0x001C,  7}, {0x000F,  6}, {0x1D00, 15}, {0x003B,  8},
+        {0x1D01, 15}, {0x0075,  9}, {0x1D02, 15}, {0x0080,  9},
+        {0x1D03, 15}, {0x1D04, 15}, {0x1D05, 15}, {0x0E83, 14},
+        {0x0009,  5}, {0x0011,  6}, {0x0081,  9}, {0x0082,  9},
+        {0x0021,  7}, {0x0028,  7}, {0x0083,  9}, {0x0002,  2},
+        {0x0003,  3}, {0x000C,  4}, {0x000D,  4}, {0x000B,  5},
+        {0x0015,  6}, {0x0052,  8}, {0x0070,  7}, {0x0039,  6},
+        {0x0071,  7}, {0x0053,  8}, {0x0E84, 14}, {0x0074,  7},
+        {0x0075,  7}, {0x0076,  7}, {0x01DC,  9}, {0x001E,  5},
+        {0x003E,  6}, {0x01DD,  9}, {0x00EF,  8}, {0x01F8,  9},
+        {0x01F9,  9}, {0x0E85, 14}, {0x0E86, 14}, {0x0E87, 14},
+        {0x00FD,  8}, {0x0E88, 14}, {0x0E89, 14}, {0x0E8A, 14},
+        {0x0E8B, 14}, {0x0E8C, 14}, {0x0E8D, 14}, {0x0E8E, 14},
+        {0x0E8F, 14}, {0x0E90, 14}, {0x0E91, 14}, {0x01FC,  9},
+        {0x0E92, 14}, {0x0E93, 14}, {0x0E94, 14}, {0x0E95, 14},
+        {0x0E96, 14}, {0x0E97, 14}, {0x01FD,  9}, {0x0E98, 14},
+        {0x01FE,  9}, {0x0E99, 14}, {0x0E9A, 14}, {0x0E9B, 14},
+        {0x0E9C, 14}, {0x01FF,  9}, {0x0E9D, 14}, {0x0E9E, 14},
+        {0x0E9F, 14},
+    },{//1
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0012,  6}, {0x0013,  6}, {0x0014,  6}, {0x0015,  6},
+        {0x002C,  7}, {0x005A,  8}, {0x005B,  8}, {0x005C,  8},
+        {0x005D,  8}, {0x1780, 14}, {0x0179, 10}, {0x017A, 10},
+        {0x0006,  4}, {0x000E,  5}, {0x001E,  6}, {0x003E,  7},
+        {0x0010,  5}, {0x0022,  6}, {0x0012,  5}, {0x000A,  4},
+        {0x0013,  5}, {0x0016,  5}, {0x0023,  6}, {0x002E,  6},
+        {0x002F,  6}, {0x0030,  6}, {0x0031,  6}, {0x003F,  7},
+        {0x005F,  8}, {0x00C8,  8}, {0x0065,  7}, {0x0066,  7},
+        {0x0067,  7}, {0x0068,  7}, {0x00C9,  8}, {0x0069,  7},
+        {0x006A,  7}, {0x00D6,  8}, {0x00D7,  8}, {0x00D8,  8},
+        {0x1781, 14}, {0x017B, 10}, {0x01B2,  9}, {0x1782, 14},
+        {0x001C,  5}, {0x01B3,  9}, {0x1783, 14}, {0x1784, 14},
+        {0x001D,  5}, {0x00DA,  8}, {0x1785, 14}, {0x1786, 14},
+        {0x1787, 14}, {0x0037,  6}, {0x00DB,  8}, {0x0078,  7},
+        {0x00F2,  8}, {0x01E6,  9}, {0x00F4,  8}, {0x1788, 14},
+        {0x1789, 14}, {0x00F5,  8}, {0x01E7,  9}, {0x178A, 14},
+        {0x178B, 14}, {0x178C, 14}, {0x178D, 14}, {0x01EC,  9},
+        {0x178E, 14}, {0x001F,  5}, {0x00F7,  8}, {0x01ED,  9},
+        {0x178F, 14},
+    },{//2
+        {0x0000,  4}, {0x0002,  5}, {0x0180, 12}, {0x0181, 12},
+        {0x0182, 12}, {0x0183, 12}, {0x0184, 12}, {0x0185, 12},
+        {0x0186, 12}, {0x0187, 12}, {0x0188, 12}, {0x0189, 12},
+        {0x00C5, 11}, {0x00C6, 11}, {0x00C7, 11}, {0x00C8, 11},
+        {0x00C9, 11}, {0x00CA, 11}, {0x00CB, 11}, {0x00CC, 11},
+        {0x00CD, 11}, {0x00CE, 11}, {0x00CF, 11}, {0x0001,  1},
+        {0x0001,  2}, {0x0004,  5}, {0x0005,  5}, {0x0006,  5},
+        {0x00D0, 11}, {0x00D1, 11}, {0x00D2, 11}, {0x00D3, 11},
+        {0x00D4, 11}, {0x00D5, 11}, {0x00D6, 11}, {0x00D7, 11},
+        {0x00D8, 11}, {0x00D9, 11}, {0x00DA, 11}, {0x0007,  5},
+        {0x00DB, 11}, {0x00DC, 11}, {0x00DD, 11}, {0x00DE, 11},
+        {0x00DF, 11}, {0x00E0, 11}, {0x00E1, 11}, {0x00E2, 11},
+        {0x00E3, 11}, {0x00E4, 11}, {0x00E5, 11}, {0x00E6, 11},
+        {0x00E7, 11}, {0x00E8, 11}, {0x00E9, 11}, {0x00EA, 11},
+        {0x00EB, 11}, {0x00EC, 11}, {0x00ED, 11}, {0x00EE, 11},
+        {0x00EF, 11}, {0x00F0, 11}, {0x00F1, 11}, {0x00F2, 11},
+        {0x00F3, 11}, {0x00F4, 11}, {0x00F5, 11}, {0x00F6, 11},
+        {0x00F7, 11}, {0x00F8, 11}, {0x00F9, 11}, {0x00FA, 11},
+        {0x00FB, 11}, {0x00FC, 11}, {0x00FD, 11}, {0x00FE, 11},
+        {0x00FF, 11},
+    },{//3
+        {0x0000,  8}, {0x0001,  8}, {0x0002,  8}, {0x0003,  8},
+        {0x0004,  8}, {0x0005,  8}, {0x0006,  8}, {0x0007,  8},
+        {0x0008,  8}, {0x0009,  8}, {0x000A,  8}, {0x000B,  8},
+        {0x000C,  8}, {0x000D,  8}, {0x000E,  8}, {0x000F,  8},
+        {0x0010,  8}, {0x0011,  8}, {0x0012,  8}, {0x0013,  8},
+        {0x0014,  8}, {0x0015,  8}, {0x0016,  8}, {0x0001,  1},
+        {0x0017,  8}, {0x000C,  7}, {0x000D,  7}, {0x000E,  7},
+        {0x000F,  7}, {0x0010,  7}, {0x0011,  7}, {0x0012,  7},
+        {0x0013,  7}, {0x0014,  7}, {0x0015,  7}, {0x0016,  7},
+        {0x0017,  7}, {0x0018,  7}, {0x0019,  7}, {0x001A,  7},
+        {0x001B,  7}, {0x001C,  7}, {0x001D,  7}, {0x001E,  7},
+        {0x001F,  7}, {0x0020,  7}, {0x0021,  7}, {0x0022,  7},
+        {0x0023,  7}, {0x0024,  7}, {0x0025,  7}, {0x0026,  7},
+        {0x0027,  7}, {0x0028,  7}, {0x0029,  7}, {0x002A,  7},
+        {0x002B,  7}, {0x002C,  7}, {0x002D,  7}, {0x002E,  7},
+        {0x002F,  7}, {0x0030,  7}, {0x0031,  7}, {0x0032,  7},
+        {0x0033,  7}, {0x0034,  7}, {0x0035,  7}, {0x0036,  7},
+        {0x0037,  7}, {0x0038,  7}, {0x0039,  7}, {0x003A,  7},
+        {0x003B,  7}, {0x003C,  7}, {0x003D,  7}, {0x003E,  7},
+        {0x003F,  7},
+    },{//4
+        {0x0000,  9}, {0x0001,  9}, {0x0002,  9}, {0x0003,  9},
+        {0x0004,  9}, {0x0005,  9}, {0x0006,  9}, {0x0007,  9},
+        {0x0008,  9}, {0x0009,  9}, {0x000A,  9}, {0x000B,  9},
+        {0x000C,  9}, {0x000D,  9}, {0x000E,  9}, {0x000F,  9},
+        {0x0010,  9}, {0x0011,  9}, {0x0012,  9}, {0x0013,  9},
+        {0x0014,  9}, {0x0015,  9}, {0x000B,  8}, {0x0001,  2},
+        {0x0001,  1}, {0x000C,  8}, {0x000D,  8}, {0x000E,  8},
+        {0x000F,  8}, {0x0010,  8}, {0x0011,  8}, {0x0012,  8},
+        {0x0013,  8}, {0x0014,  8}, {0x0015,  8}, {0x0016,  8},
+        {0x0017,  8}, {0x0018,  8}, {0x0019,  8}, {0x001A,  8},
+        {0x001B,  8}, {0x001C,  8}, {0x001D,  8}, {0x001E,  8},
+        {0x001F,  8}, {0x0020,  8}, {0x0021,  8}, {0x0022,  8},
+        {0x0023,  8}, {0x0024,  8}, {0x0025,  8}, {0x0026,  8},
+        {0x0027,  8}, {0x0028,  8}, {0x0029,  8}, {0x002A,  8},
+        {0x002B,  8}, {0x002C,  8}, {0x002D,  8}, {0x002E,  8},
+        {0x002F,  8}, {0x0030,  8}, {0x0031,  8}, {0x0032,  8},
+        {0x0033,  8}, {0x0034,  8}, {0x0035,  8}, {0x0036,  8},
+        {0x0037,  8}, {0x0038,  8}, {0x0039,  8}, {0x003A,  8},
+        {0x003B,  8}, {0x003C,  8}, {0x003D,  8}, {0x003E,  8},
+        {0x003F,  8},
+    },{//5
+        {0x0000, 10}, {0x0001, 10}, {0x0002, 10}, {0x0003, 10},
+        {0x0004, 10}, {0x0005, 10}, {0x0006, 10}, {0x0007, 10},
+        {0x0008, 10}, {0x0009, 10}, {0x000A, 10}, {0x000B, 10},
+        {0x000C, 10}, {0x000D, 10}, {0x000E, 10}, {0x000F, 10},
+        {0x0010, 10}, {0x0011, 10}, {0x0012, 10}, {0x0013, 10},
+        {0x000A,  9}, {0x000B,  9}, {0x000C,  9}, {0x0001,  1},
+        {0x0001,  3}, {0x000D,  9}, {0x000E,  9}, {0x0001,  2},
+        {0x000F,  9}, {0x0010,  9}, {0x0011,  9}, {0x0012,  9},
+        {0x0013,  9}, {0x0014,  9}, {0x0015,  9}, {0x0016,  9},
+        {0x0017,  9}, {0x0018,  9}, {0x0019,  9}, {0x001A,  9},
+        {0x001B,  9}, {0x001C,  9}, {0x001D,  9}, {0x001E,  9},
+        {0x001F,  9}, {0x0020,  9}, {0x0021,  9}, {0x0022,  9},
+        {0x0023,  9}, {0x0024,  9}, {0x0025,  9}, {0x0026,  9},
+        {0x0027,  9}, {0x0028,  9}, {0x0029,  9}, {0x002A,  9},
+        {0x002B,  9}, {0x002C,  9}, {0x002D,  9}, {0x002E,  9},
+        {0x002F,  9}, {0x0030,  9}, {0x0031,  9}, {0x0032,  9},
+        {0x0033,  9}, {0x0034,  9}, {0x0035,  9}, {0x0036,  9},
+        {0x0037,  9}, {0x0038,  9}, {0x0039,  9}, {0x003A,  9},
+        {0x003B,  9}, {0x003C,  9}, {0x003D,  9}, {0x003E,  9},
+        {0x003F,  9},
+    },{//6
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x000B,  5},
+        {0x0018,  6}, {0x0019,  6}, {0x0034,  7}, {0x006A,  8},
+        {0x006B,  8}, {0x006C,  8}, {0x00DA,  9}, {0x00DB,  9},
+        {0x01B8, 10}, {0x00DD,  9}, {0x01B9, 10}, {0x3780, 15},
+        {0x0004,  3}, {0x000E,  5}, {0x001E,  6}, {0x001F,  6},
+        {0x000A,  4}, {0x0058,  7}, {0x0017,  5}, {0x0018,  5},
+        {0x0059,  7}, {0x005A,  7}, {0x005B,  7}, {0x00C8,  8},
+        {0x0065,  7}, {0x0066,  7}, {0x00C9,  8}, {0x00CE,  8},
+        {0x00CF,  8}, {0x00D0,  8}, {0x00D1,  8}, {0x00D2,  8},
+        {0x00D3,  8}, {0x00DF,  9}, {0x00D4,  8}, {0x00D5,  8},
+        {0x00D6,  8}, {0x01AE,  9}, {0x3781, 15}, {0x01BD, 10},
+        {0x035E, 10}, {0x035F, 10}, {0x3782, 15}, {0x0360, 10},
+        {0x0037,  6}, {0x01B1,  9}, {0x3783, 15}, {0x3784, 15},
+        {0x000E,  4}, {0x003C,  6}, {0x0361, 10}, {0x3785, 15},
+        {0x1BC3, 14}, {0x003D,  6}, {0x00D9,  8}, {0x1BC4, 14},
+        {0x0368, 10}, {0x1BC5, 14}, {0x1BC6, 14}, {0x1BC7, 14},
+        {0x1BC8, 14}, {0x00DB,  8}, {0x0369, 10}, {0x036A, 10},
+        {0x1BC9, 14}, {0x1BCA, 14}, {0x1BCB, 14}, {0x1BCC, 14},
+        {0x1BCD, 14}, {0x001F,  5}, {0x036B, 10}, {0x1BCE, 14},
+        {0x1BCF, 14},
+    },{//7
+        {0x0000,  3}, {0x0002,  4}, {0x0006,  5}, {0x0007,  5},
+        {0x0010,  6}, {0x0044,  8}, {0x0023,  7}, {0x0012,  6},
+        {0x0026,  7}, {0x08A0, 13}, {0x004E,  8}, {0x004F,  8},
+        {0x08A1, 13}, {0x08A2, 13}, {0x08A3, 13}, {0x0050,  8},
+        {0x0006,  4}, {0x000B,  5}, {0x0029,  7}, {0x0015,  6},
+        {0x001C,  6}, {0x003A,  7}, {0x001E,  6}, {0x0004,  3},
+        {0x0014,  5}, {0x0015,  5}, {0x000B,  4}, {0x001F,  6},
+        {0x0030,  6}, {0x0031,  6}, {0x0019,  5}, {0x0051,  8},
+        {0x0034,  6}, {0x0035,  6}, {0x0036,  6}, {0x0037,  6},
+        {0x0076,  8}, {0x0077,  8}, {0x0070,  7}, {0x001D,  5},
+        {0x0071,  7}, {0x0072,  7}, {0x08A4, 13}, {0x0073,  7},
+        {0x00F0,  8}, {0x08A5, 13}, {0x08A6, 13}, {0x08A7, 13},
+        {0x0079,  7}, {0x007A,  7}, {0x08A8, 13}, {0x08A9, 13},
+        {0x00F1,  8}, {0x08AA, 13}, {0x08AB, 13}, {0x08AC, 13},
+        {0x08AD, 13}, {0x00F6,  8}, {0x08AE, 13}, {0x007C,  7},
+        {0x00F7,  8}, {0x08AF, 13}, {0x08B0, 13}, {0x08B1, 13},
+        {0x08B2, 13}, {0x00FA,  8}, {0x08B3, 13}, {0x08B4, 13},
+        {0x08B5, 13}, {0x08B6, 13}, {0x08B7, 13}, {0x00FB,  8},
+        {0x045C, 12}, {0x003F,  6}, {0x045D, 12}, {0x045E, 12},
+        {0x045F, 12},
+    }
+};
+
+const uint16_t ff_x8_ac1_lowquant_table[8][77][2]={
+    {//0
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0012,  6}, {0x0026,  7}, {0x0014,  6}, {0x004E,  8},
+        {0x004F,  8}, {0x00A8,  9}, {0x0152, 10}, {0x00AA,  9},
+        {0x00AB,  9}, {0x00AC,  9}, {0x2A60, 15}, {0x02A7, 11},
+        {0x0006,  4}, {0x000B,  5}, {0x001C,  6}, {0x003A,  7},
+        {0x000F,  5}, {0x003B,  7}, {0x0010,  5}, {0x0005,  3},
+        {0x0009,  4}, {0x0011,  5}, {0x0018,  5}, {0x0019,  5},
+        {0x001A,  5}, {0x0036,  6}, {0x0037,  6}, {0x0070,  7},
+        {0x0057,  8}, {0x00E2,  8}, {0x00E3,  8}, {0x00E4,  8},
+        {0x00E5,  8}, {0x00AD,  9}, {0x0398, 10}, {0x003A,  6},
+        {0x0076,  7}, {0x00E7,  8}, {0x00EE,  8}, {0x00EF,  8},
+        {0x0732, 11}, {0x039A, 10}, {0x0733, 11}, {0x2A61, 15},
+        {0x0078,  7}, {0x1531, 14}, {0x1532, 14}, {0x1533, 14},
+        {0x003D,  6}, {0x039B, 10}, {0x1534, 14}, {0x1535, 14},
+        {0x1536, 14}, {0x0079,  7}, {0x1537, 14}, {0x00F8,  8},
+        {0x01F2,  9}, {0x07CC, 11}, {0x03E7, 10}, {0x07CD, 11},
+        {0x3E80, 14}, {0x00FB,  8}, {0x03E9, 10}, {0x3E81, 14},
+        {0x3E82, 14}, {0x3E83, 14}, {0x3E84, 14}, {0x3E85, 14},
+        {0x3E86, 14}, {0x003F,  6}, {0x01F5,  9}, {0x07D1, 11},
+        {0x3E87, 14},
+    },{//1
+        {0x0000,  2}, {0x0002,  3}, {0x0006,  4}, {0x000E,  5},
+        {0x001E,  6}, {0x001F,  6}, {0x0040,  7}, {0x0082,  8},
+        {0x0083,  8}, {0x0084,  8}, {0x010A,  9}, {0x010B,  9},
+        {0x0430, 11}, {0x0431, 11}, {0x0432, 11}, {0x0433, 11},
+        {0x0005,  3}, {0x0011,  5}, {0x0024,  6}, {0x004A,  7},
+        {0x000C,  4}, {0x0026,  6}, {0x000D,  4}, {0x0087,  8},
+        {0x010D,  9}, {0x0258, 10}, {0x012D,  9}, {0x0259, 10},
+        {0x025C, 10}, {0x0974, 12}, {0x025E, 10}, {0x025F, 10},
+        {0x0270, 10}, {0x0271, 10}, {0x04BB, 11}, {0x0975, 12},
+        {0x0272, 10}, {0x09CC, 12}, {0x09CD, 12}, {0x4E70, 15},
+        {0x4E71, 15}, {0x4E72, 15}, {0x4E73, 15}, {0x273A, 14},
+        {0x273B, 14}, {0x273C, 14}, {0x04E8, 11}, {0x04E9, 11},
+        {0x009E,  8}, {0x0275, 10}, {0x09D8, 12}, {0x273D, 14},
+        {0x000E,  4}, {0x003C,  6}, {0x007A,  7}, {0x009F,  8},
+        {0x0277, 10}, {0x003E,  6}, {0x00F6,  8}, {0x04ED, 11},
+        {0x03DC, 10}, {0x273E, 14}, {0x07BA, 11}, {0x09D9, 12},
+        {0x273F, 14}, {0x3DD8, 14}, {0x3DD9, 14}, {0x3DDA, 14},
+        {0x3DDB, 14}, {0x3DDC, 14}, {0x3DDD, 14}, {0x3DDE, 14},
+        {0x3DDF, 14}, {0x003F,  6}, {0x07BC, 11}, {0x07BD, 11},
+        {0x03DF, 10},
+    },{//2
+        {0x0000,  3}, {0x0002,  4}, {0x0006,  5}, {0x000E,  6},
+        {0x001E,  7}, {0x003E,  8}, {0x003F,  8}, {0x0040,  8},
+        {0x0104, 10}, {0x0083,  9}, {0x0105, 10}, {0x0108, 10},
+        {0x4240, 16}, {0x010A, 10}, {0x010B, 10}, {0x4241, 16},
+        {0x0003,  3}, {0x0009,  5}, {0x0011,  6}, {0x0043,  8},
+        {0x0004,  3}, {0x000A,  5}, {0x000A,  4}, {0x002C,  7},
+        {0x00B4,  9}, {0x00B5,  9}, {0x00B6,  9}, {0x00B7,  9},
+        {0x00B8,  9}, {0x0172, 10}, {0x0173, 10}, {0x0174, 10},
+        {0x0175, 10}, {0x0176, 10}, {0x0177, 10}, {0x00BC,  9},
+        {0x017A, 10}, {0x0213, 11}, {0x4242, 16}, {0x017B, 10},
+        {0x02F8, 11}, {0x017D, 10}, {0x02F9, 11}, {0x017E, 10},
+        {0x4243, 16}, {0x02FE, 11}, {0x2122, 15}, {0x2123, 15},
+        {0x0058,  7}, {0x0164,  9}, {0x2124, 15}, {0x2125, 15},
+        {0x0006,  3}, {0x000E,  4}, {0x002D,  6}, {0x002E,  6},
+        {0x00B3,  8}, {0x001E,  5}, {0x005E,  7}, {0x2126, 15},
+        {0x2127, 15}, {0x2128, 15}, {0x2129, 15}, {0x02FF, 11},
+        {0x212A, 15}, {0x0594, 11}, {0x0595, 11}, {0x0596, 11},
+        {0x212B, 15}, {0x212C, 15}, {0x212D, 15}, {0x212E, 15},
+        {0x212F, 15}, {0x001F,  5}, {0x0597, 11}, {0x00BE,  8},
+        {0x00BF,  8},
+    },{//3
+        {0x0000,  2}, {0x0002,  3}, {0x0006,  4}, {0x0007,  4},
+        {0x0010,  5}, {0x0011,  5}, {0x0024,  6}, {0x0025,  6},
+        {0x0026,  6}, {0x0027,  6}, {0x0050,  7}, {0x0051,  7},
+        {0x00A4,  8}, {0x00A5,  8}, {0x00A6,  8}, {0x014E,  9},
+        {0x000B,  4}, {0x002A,  6}, {0x0056,  7}, {0x014F,  9},
+        {0x0030,  6}, {0x00AE,  8}, {0x0062,  7}, {0x0032,  6},
+        {0x0033,  6}, {0x0034,  6}, {0x0035,  6}, {0x0036,  6},
+        {0x0063,  7}, {0x006E,  7}, {0x006F,  7}, {0x0070,  7},
+        {0x0071,  7}, {0x0072,  7}, {0x0073,  7}, {0x0074,  7},
+        {0x00AF,  8}, {0x00EA,  8}, {0x01D6,  9}, {0x075C, 11},
+        {0x03AF, 10}, {0x75D0, 15}, {0x75D1, 15}, {0x75D2, 15},
+        {0x75D3, 15}, {0x75D4, 15}, {0x0076,  7}, {0x00EE,  8},
+        {0x00EF,  8}, {0x0EBB, 12}, {0x01E0,  9}, {0x75D5, 15},
+        {0x0079,  7}, {0x01E1,  9}, {0x75D6, 15}, {0x75D7, 15},
+        {0x7880, 15}, {0x00F4,  8}, {0x0789, 11}, {0x003E,  6},
+        {0x007B,  7}, {0x00F5,  8}, {0x00FC,  8}, {0x007F,  7},
+        {0x01E3,  9}, {0x078A, 11}, {0x078B, 11}, {0x7881, 15},
+        {0x7882, 15}, {0x7883, 15}, {0x3C42, 14}, {0x3C43, 14},
+        {0x3C44, 14}, {0x00FD,  8}, {0x3C45, 14}, {0x3C46, 14},
+        {0x3C47, 14},
+    },{//4
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x0016,  6},
+        {0x0017,  6}, {0x0030,  7}, {0x0031,  7}, {0x0064,  8},
+        {0x0065,  8}, {0x0066,  8}, {0x00CE,  9}, {0x00CF,  9},
+        {0x01A0, 10}, {0x01A1, 10}, {0x1A20, 14}, {0x0689, 12},
+        {0x0004,  3}, {0x000E,  5}, {0x001B,  6}, {0x0035,  7},
+        {0x000A,  4}, {0x001E,  6}, {0x0016,  5}, {0x0017,  5},
+        {0x001F,  6}, {0x0030,  6}, {0x0031,  6}, {0x0064,  7},
+        {0x0065,  7}, {0x0069,  8}, {0x0066,  7}, {0x00CE,  8},
+        {0x00CF,  8}, {0x00D0,  8}, {0x00D1,  8}, {0x00D2,  8},
+        {0x01A6,  9}, {0x01A3, 10}, {0x034E, 10}, {0x006A,  7},
+        {0x00D6,  8}, {0x01AE,  9}, {0x01AF,  9}, {0x034F, 10},
+        {0x0345, 11}, {0x01B0,  9}, {0x01B1,  9}, {0x0364, 10},
+        {0x006D,  7}, {0x00DC,  8}, {0x0D94, 12}, {0x0D95, 12},
+        {0x000E,  4}, {0x003C,  6}, {0x00DD,  8}, {0x00DE,  8},
+        {0x01B3,  9}, {0x003D,  6}, {0x00DF,  8}, {0x01F0,  9},
+        {0x03E2, 10}, {0x03E3, 10}, {0x06CB, 11}, {0x03E4, 10},
+        {0x07CA, 11}, {0x01F3,  9}, {0x01F4,  9}, {0x07CB, 11},
+        {0x07D4, 11}, {0x1A21, 14}, {0x1A22, 14}, {0x07D5, 11},
+        {0x1A23, 14}, {0x003F,  6}, {0x01F6,  9}, {0x01F7,  9},
+        {0x03EB, 10},
+    },{//5
+        {0x0000,  2}, {0x0002,  3}, {0x0006,  4}, {0x000E,  5},
+        {0x000F,  5}, {0x0020,  6}, {0x0021,  6}, {0x0044,  7},
+        {0x0045,  7}, {0x0046,  7}, {0x008E,  8}, {0x008F,  8},
+        {0x0090,  8}, {0x0122,  9}, {0x0246, 10}, {0x0124,  9},
+        {0x0005,  3}, {0x0013,  5}, {0x004A,  7}, {0x0093,  8},
+        {0x0018,  5}, {0x004B,  7}, {0x0032,  6}, {0x001A,  5},
+        {0x0033,  6}, {0x006C,  7}, {0x006D,  7}, {0x006E,  7},
+        {0x00DE,  8}, {0x00DF,  8}, {0x0070,  7}, {0x00E2,  8},
+        {0x00E3,  8}, {0x00E4,  8}, {0x00E5,  8}, {0x00E6,  8},
+        {0x00E7,  8}, {0x0125,  9}, {0x01D0,  9}, {0x048E, 11},
+        {0x091E, 12}, {0x091F, 12}, {0x7440, 15}, {0x1D11, 13},
+        {0x7441, 15}, {0x7442, 15}, {0x00E9,  8}, {0x01D4,  9},
+        {0x00EB,  8}, {0x03A3, 10}, {0x01D5,  9}, {0x1D12, 13},
+        {0x001E,  5}, {0x0076,  7}, {0x01DC,  9}, {0x01DD,  9},
+        {0x7443, 15}, {0x007C,  7}, {0x0745, 11}, {0x00EF,  8},
+        {0x00FA,  8}, {0x00FB,  8}, {0x01F8,  9}, {0x00FD,  8},
+        {0x07E4, 11}, {0x0FCA, 12}, {0x1D13, 13}, {0x7E58, 15},
+        {0x7E59, 15}, {0x7E5A, 15}, {0x7E5B, 15}, {0x7E5C, 15},
+        {0x7E5D, 15}, {0x007F,  7}, {0x3F2F, 14}, {0x07E6, 11},
+        {0x07E7, 11},
+    },{//6
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0009,  5}, {0x0014,  6}, {0x0015,  6}, {0x002C,  7},
+        {0x005A,  8}, {0x005B,  8}, {0x005C,  8}, {0x00BA,  9},
+        {0x00BB,  9}, {0x00BC,  9}, {0x02F4, 11}, {0x05EA, 12},
+        {0x0003,  3}, {0x0010,  5}, {0x0022,  6}, {0x0046,  7},
+        {0x0009,  4}, {0x0028,  6}, {0x0015,  5}, {0x000B,  4},
+        {0x0018,  5}, {0x0029,  6}, {0x0032,  6}, {0x0047,  7},
+        {0x0066,  7}, {0x0067,  7}, {0x0068,  7}, {0x0069,  7},
+        {0x006A,  7}, {0x005F,  8}, {0x00D6,  8}, {0x00D7,  8},
+        {0x01B0,  9}, {0x00D9,  8}, {0x017B, 10}, {0x006D,  7},
+        {0x00DC,  8}, {0x01B1,  9}, {0x06E8, 11}, {0x01BB,  9},
+        {0x0375, 10}, {0x05EB, 12}, {0x01BC,  9}, {0x6E90, 15},
+        {0x0038,  6}, {0x0072,  7}, {0x6E91, 15}, {0x6E92, 15},
+        {0x001D,  5}, {0x0073,  7}, {0x01BD,  9}, {0x06F8, 11},
+        {0x6E93, 15}, {0x003C,  6}, {0x01BF,  9}, {0x00F4,  8},
+        {0x01EA,  9}, {0x037D, 10}, {0x03D6, 10}, {0x06F9, 11},
+        {0x6E94, 15}, {0x00F6,  8}, {0x01EE,  9}, {0x6E95, 15},
+        {0x6E96, 15}, {0x6E97, 15}, {0x374C, 14}, {0x374D, 14},
+        {0x374E, 14}, {0x001F,  5}, {0x03D7, 10}, {0x01EF,  9},
+        {0x374F, 14},
+    },{//7
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x0016,  6},
+        {0x002E,  7}, {0x002F,  7}, {0x0060,  8}, {0x0061,  8},
+        {0x00C4,  9}, {0x00C5,  9}, {0x00C6,  9}, {0x018E, 10},
+        {0x31E0, 15}, {0x31E1, 15}, {0x31E2, 15}, {0x31E3, 15},
+        {0x0004,  3}, {0x000D,  5}, {0x0019,  6}, {0x0038,  7},
+        {0x000A,  4}, {0x001D,  6}, {0x000B,  4}, {0x0072,  8},
+        {0x0073,  8}, {0x00F0,  9}, {0x01E2, 10}, {0x00F2,  9},
+        {0x01E3, 10}, {0x00F3,  9}, {0x01E8, 10}, {0x01E9, 10},
+        {0x31E4, 15}, {0x01EA, 10}, {0x031F, 11}, {0x03D6, 11},
+        {0x31E5, 15}, {0x01EC, 10}, {0x31E6, 15}, {0x00F7,  9},
+        {0x03D7, 11}, {0x31E7, 15}, {0x31E8, 15}, {0x03DA, 11},
+        {0x03DB, 11}, {0x31E9, 15}, {0x03E0, 11}, {0x31EA, 15},
+        {0x003F,  7}, {0x01F1, 10}, {0x31EB, 15}, {0x31EC, 15},
+        {0x0006,  3}, {0x001C,  5}, {0x0074,  7}, {0x0075,  7},
+        {0x00F9,  9}, {0x001E,  5}, {0x0076,  7}, {0x00FA,  9},
+        {0x03E1, 11}, {0x31ED, 15}, {0x18F7, 14}, {0x1F60, 14},
+        {0x1F61, 14}, {0x01DC,  9}, {0x01DD,  9}, {0x1F62, 14},
+        {0x1F63, 14}, {0x1F64, 14}, {0x1F65, 14}, {0x1F66, 14},
+        {0x1F67, 14}, {0x001F,  5}, {0x03ED, 11}, {0x00EF,  8},
+        {0x01F7, 10},
+    }
+};
+
+const uint16_t ff_x8_ac1_highquant_table[8][77][2]={
+    {//0
+        {0x0000,  3}, {0x0002,  4}, {0x0006,  5}, {0x0007,  5},
+        {0x0008,  5}, {0x0009,  5}, {0x0014,  6}, {0x002A,  7},
+        {0x0016,  6}, {0x002B,  7}, {0x005C,  8}, {0x002F,  7},
+        {0x0030,  7}, {0x005D,  8}, {0x0062,  8}, {0x00C6,  9},
+        {0x0007,  4}, {0x0019,  6}, {0x001A,  6}, {0x0036,  7},
+        {0x0010,  5}, {0x006E,  8}, {0x0022,  6}, {0x0009,  4},
+        {0x000A,  4}, {0x0016,  5}, {0x0023,  6}, {0x002E,  6},
+        {0x002F,  6}, {0x0030,  6}, {0x0062,  7}, {0x0063,  7},
+        {0x0064,  7}, {0x0065,  7}, {0x0066,  7}, {0x0067,  7},
+        {0x0068,  7}, {0x0069,  7}, {0x006A,  7}, {0x006B,  7},
+        {0x006C,  7}, {0x00C7,  9}, {0x00DE,  9}, {0x00DF,  9},
+        {0x06D0, 11}, {0x01B5,  9}, {0x0037,  6}, {0x00DB,  8},
+        {0x001C,  5}, {0x0074,  7}, {0x01D4,  9}, {0x01D5,  9},
+        {0x0076,  7}, {0x0369, 10}, {0x3688, 14}, {0x3689, 14},
+        {0x368A, 14}, {0x0077,  7}, {0x03AC, 10}, {0x0078,  7},
+        {0x00F2,  8}, {0x01D7,  9}, {0x00F3,  8}, {0x007A,  7},
+        {0x368B, 14}, {0x007B,  7}, {0x007C,  7}, {0x03AD, 10},
+        {0x03E8, 10}, {0x368C, 14}, {0x368D, 14}, {0x03E9, 10},
+        {0x368E, 14}, {0x003F,  6}, {0x01F5,  9}, {0x00FB,  8},
+        {0x368F, 14},
+    },{//1
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x000B,  5},
+        {0x0018,  6}, {0x0032,  7}, {0x0033,  7}, {0x0034,  7},
+        {0x006A,  8}, {0x00D6,  9}, {0x00D7,  9}, {0x00D8,  9},
+        {0x00D9,  9}, {0x3680, 15}, {0x01B5, 10}, {0x0369, 11},
+        {0x0004,  3}, {0x000E,  5}, {0x001E,  6}, {0x0037,  7},
+        {0x000A,  4}, {0x0016,  5}, {0x000C,  4}, {0x001F,  6},
+        {0x005C,  7}, {0x005D,  7}, {0x00BC,  8}, {0x00BD,  8},
+        {0x005F,  7}, {0x00D0,  8}, {0x00DB,  9}, {0x00D1,  8},
+        {0x01A4,  9}, {0x01A5,  9}, {0x01A6,  9}, {0x01A7,  9},
+        {0x0350, 10}, {0x06A2, 11}, {0x06A3, 11}, {0x01A9,  9},
+        {0x01AA,  9}, {0x06AC, 11}, {0x3681, 15}, {0x0357, 10},
+        {0x3682, 15}, {0x3683, 15}, {0x3684, 15}, {0x3685, 15},
+        {0x0036,  6}, {0x00D6,  8}, {0x3686, 15}, {0x3687, 15},
+        {0x000E,  4}, {0x006E,  7}, {0x00D7,  8}, {0x06AD, 11},
+        {0x3688, 15}, {0x001E,  5}, {0x00DE,  8}, {0x06F8, 11},
+        {0x037D, 10}, {0x3689, 15}, {0x368A, 15}, {0x368B, 15},
+        {0x368C, 15}, {0x01BF,  9}, {0x368D, 15}, {0x1B47, 14},
+        {0x37C8, 14}, {0x37C9, 14}, {0x37CA, 14}, {0x37CB, 14},
+        {0x37CC, 14}, {0x001F,  5}, {0x37CD, 14}, {0x37CE, 14},
+        {0x37CF, 14},
+    },{//2
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0012,  6}, {0x0026,  7}, {0x0014,  6}, {0x0027,  7},
+        {0x00A8,  9}, {0x00A9,  9}, {0x0055,  8}, {0x2B00, 15},
+        {0x00AD,  9}, {0x2B01, 15}, {0x2B02, 15}, {0x2B03, 15},
+        {0x0003,  3}, {0x000B,  5}, {0x0040,  7}, {0x0041,  7},
+        {0x0009,  4}, {0x0021,  6}, {0x0011,  5}, {0x000A,  4},
+        {0x000B,  4}, {0x0018,  5}, {0x0032,  6}, {0x0033,  6},
+        {0x0034,  6}, {0x0035,  6}, {0x006C,  7}, {0x0057,  8},
+        {0x006D,  7}, {0x00DC,  8}, {0x0159, 10}, {0x00DD,  8},
+        {0x01BC,  9}, {0x037A, 10}, {0x037B, 10}, {0x0038,  6},
+        {0x0072,  7}, {0x01BE,  9}, {0x01BF,  9}, {0x00E6,  8},
+        {0x039C, 10}, {0x01CF,  9}, {0x2B04, 15}, {0x2B05, 15},
+        {0x0074,  7}, {0x01D4,  9}, {0x2B06, 15}, {0x2B07, 15},
+        {0x001E,  5}, {0x00EB,  8}, {0x1584, 14}, {0x1585, 14},
+        {0x1586, 14}, {0x003B,  6}, {0x01D5,  9}, {0x01F0,  9},
+        {0x039D, 10}, {0x03E2, 10}, {0x1587, 14}, {0x1588, 14},
+        {0x1589, 14}, {0x00F9,  8}, {0x158A, 14}, {0x158B, 14},
+        {0x03E3, 10}, {0x158C, 14}, {0x158D, 14}, {0x01F4,  9},
+        {0x158E, 14}, {0x003F,  6}, {0x00FB,  8}, {0x01F5,  9},
+        {0x158F, 14},
+    },{//3
+        {0x0000,  3}, {0x0002,  4}, {0x0006,  5}, {0x0007,  5},
+        {0x0010,  6}, {0x0011,  6}, {0x0024,  7}, {0x0025,  7},
+        {0x0013,  6}, {0x0014,  6}, {0x002A,  7}, {0x002B,  7},
+        {0x00B0,  9}, {0x00B1,  9}, {0x002D,  7}, {0x0059,  8},
+        {0x000C,  5}, {0x0017,  6}, {0x00D0,  9}, {0x0035,  7},
+        {0x001B,  6}, {0x0038,  7}, {0x0039,  7}, {0x0004,  3},
+        {0x0005,  3}, {0x000F,  5}, {0x0018,  5}, {0x001D,  6},
+        {0x0032,  6}, {0x0033,  6}, {0x0068,  7}, {0x0069,  7},
+        {0x0069,  8}, {0x00D4,  8}, {0x00D5,  8}, {0x00D6,  8},
+        {0x006C,  7}, {0x0037,  6}, {0x006D,  7}, {0x0070,  7},
+        {0x0039,  6}, {0x00D7,  8}, {0x00D1,  9}, {0x3880, 14},
+        {0x3881, 14}, {0x3882, 14}, {0x0074,  7}, {0x01C5,  9},
+        {0x0075,  7}, {0x00E3,  8}, {0x3883, 14}, {0x3884, 14},
+        {0x00EC,  8}, {0x3885, 14}, {0x1C43, 13}, {0x1C44, 13},
+        {0x1C45, 13}, {0x00ED,  8}, {0x1C46, 13}, {0x003C,  6},
+        {0x0077,  7}, {0x01E8,  9}, {0x003E,  6}, {0x007B,  7},
+        {0x1C47, 13}, {0x007E,  7}, {0x007F,  7}, {0x1C48, 13},
+        {0x1C49, 13}, {0x1C4A, 13}, {0x1C4B, 13}, {0x1C4C, 13},
+        {0x1C4D, 13}, {0x00F5,  8}, {0x1C4E, 13}, {0x01E9,  9},
+        {0x1C4F, 13},
+    },{//4
+        {0x0000,  2}, {0x0004,  4}, {0x000A,  5}, {0x000B,  5},
+        {0x0018,  6}, {0x0019,  6}, {0x0034,  7}, {0x0035,  7},
+        {0x0036,  7}, {0x006E,  8}, {0x00DE,  9}, {0x00DF,  9},
+        {0x01C0, 10}, {0x01C1, 10}, {0x01C2, 10}, {0x3860, 15},
+        {0x0004,  3}, {0x000F,  5}, {0x001D,  6}, {0x0039,  7},
+        {0x000A,  4}, {0x002C,  6}, {0x002D,  6}, {0x000C,  4},
+        {0x0017,  5}, {0x0034,  6}, {0x0035,  6}, {0x0036,  6},
+        {0x006E,  7}, {0x006F,  7}, {0x0070,  7}, {0x0071,  7},
+        {0x0071,  8}, {0x00E4,  8}, {0x00E5,  8}, {0x00E6,  8},
+        {0x00E7,  8}, {0x00E8,  8}, {0x03A4, 10}, {0x0075,  7},
+        {0x00EC,  8}, {0x01D3,  9}, {0x01DA,  9}, {0x03A5, 10},
+        {0x03B6, 10}, {0x070D, 12}, {0x03B7, 10}, {0x070E, 12},
+        {0x003C,  6}, {0x00EE,  8}, {0x3861, 15}, {0x3862, 15},
+        {0x003D,  6}, {0x01DE,  9}, {0x3863, 15}, {0x3864, 15},
+        {0x3865, 15}, {0x007C,  7}, {0x070F, 12}, {0x03BE, 10},
+        {0x03BF, 10}, {0x3866, 15}, {0x0FA0, 12}, {0x07D1, 11},
+        {0x3867, 15}, {0x00FB,  8}, {0x01F5,  9}, {0x7D08, 15},
+        {0x0FA4, 12}, {0x7D09, 15}, {0x7D0A, 15}, {0x7D0B, 15},
+        {0x3E86, 14}, {0x003F,  6}, {0x0FA5, 12}, {0x07D3, 11},
+        {0x3E87, 14},
+    },{//5
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0009,  5}, {0x0014,  6}, {0x002A,  7}, {0x0056,  8},
+        {0x02B8, 11}, {0x00AF,  9}, {0x02B9, 11}, {0x015D, 10},
+        {0x02C0, 11}, {0x2C10, 15}, {0x2C11, 15}, {0x2C12, 15},
+        {0x0006,  4}, {0x000E,  5}, {0x0017,  6}, {0x002D,  7},
+        {0x000F,  5}, {0x0040,  7}, {0x0021,  6}, {0x0005,  3},
+        {0x0009,  4}, {0x0011,  5}, {0x0018,  5}, {0x0019,  5},
+        {0x001A,  5}, {0x0036,  6}, {0x0037,  6}, {0x0041,  7},
+        {0x0059,  8}, {0x00E0,  8}, {0x00E1,  8}, {0x0071,  7},
+        {0x00E4,  8}, {0x00B1,  9}, {0x02C2, 11}, {0x001D,  5},
+        {0x0073,  7}, {0x00E5,  8}, {0x00F0,  8}, {0x0079,  7},
+        {0x03C4, 10}, {0x01E3,  9}, {0x01E8,  9}, {0x2C13, 15},
+        {0x007B,  7}, {0x2C14, 15}, {0x2C15, 15}, {0x2C16, 15},
+        {0x007C,  7}, {0x02C3, 11}, {0x2C17, 15}, {0x160C, 14},
+        {0x160D, 14}, {0x007D,  7}, {0x160E, 14}, {0x01E9,  9},
+        {0x03C5, 10}, {0x03D4, 10}, {0x01EB,  9}, {0x160F, 14},
+        {0x3D50, 14}, {0x00FC,  8}, {0x07AB, 11}, {0x3D51, 14},
+        {0x3D52, 14}, {0x3D53, 14}, {0x3D54, 14}, {0x01FA,  9},
+        {0x3D55, 14}, {0x007F,  7}, {0x01FB,  9}, {0x3D56, 14},
+        {0x3D57, 14},
+    },{//6
+        {0x0000,  3}, {0x0002,  4}, {0x0003,  4}, {0x0008,  5},
+        {0x0009,  5}, {0x000A,  5}, {0x000B,  5}, {0x0018,  6},
+        {0x0032,  7}, {0x000D,  5}, {0x0033,  7}, {0x0E00, 13},
+        {0x0039,  7}, {0x0E01, 13}, {0x003A,  7}, {0x0E02, 13},
+        {0x0008,  4}, {0x001E,  6}, {0x003B,  7}, {0x003E,  7},
+        {0x0012,  5}, {0x003F,  7}, {0x0013,  5}, {0x0028,  6},
+        {0x0029,  6}, {0x0054,  7}, {0x002B,  6}, {0x0055,  7},
+        {0x0058,  7}, {0x0E03, 13}, {0x0059,  7}, {0x005A,  7},
+        {0x0E04, 13}, {0x0E05, 13}, {0x0703, 12}, {0x005B,  7},
+        {0x005C,  7}, {0x0704, 12}, {0x0705, 12}, {0x005D,  7},
+        {0x0706, 12}, {0x0707, 12}, {0x0708, 12}, {0x0709, 12},
+        {0x070A, 12}, {0x070B, 12}, {0x0018,  5}, {0x002F,  6},
+        {0x000D,  4}, {0x0019,  5}, {0x070C, 12}, {0x0070,  7},
+        {0x001D,  5}, {0x070D, 12}, {0x070E, 12}, {0x070F, 12},
+        {0x0710, 12}, {0x0039,  6}, {0x0711, 12}, {0x003C,  6},
+        {0x0712, 12}, {0x0713, 12}, {0x0714, 12}, {0x0715, 12},
+        {0x0716, 12}, {0x003D,  6}, {0x0717, 12}, {0x0718, 12},
+        {0x0719, 12}, {0x071A, 12}, {0x071B, 12}, {0x071C, 12},
+        {0x071D, 12}, {0x001F,  5}, {0x071E, 12}, {0x0071,  7},
+        {0x071F, 12},
+    },{//7
+        {0x0000,  3}, {0x0002,  4}, {0x0006,  5}, {0x000E,  6},
+        {0x000F,  6}, {0x0040,  8}, {0x0041,  8}, {0x0042,  8},
+        {0x0218, 11}, {0x2190, 15}, {0x2191, 15}, {0x2192, 15},
+        {0x2193, 15}, {0x2194, 15}, {0x2195, 15}, {0x2196, 15},
+        {0x0005,  4}, {0x0011,  6}, {0x0024,  7}, {0x0087,  9},
+        {0x000C,  5}, {0x004A,  8}, {0x004B,  8}, {0x0002,  2},
+        {0x0006,  3}, {0x000D,  5}, {0x000E,  5}, {0x000F,  5},
+        {0x0013,  6}, {0x0038,  6}, {0x00E4,  8}, {0x00E5,  8},
+        {0x01CC,  9}, {0x00E7,  8}, {0x0074,  7}, {0x00EA,  8},
+        {0x01CD,  9}, {0x021A, 11}, {0x2197, 15}, {0x001E,  5},
+        {0x0076,  7}, {0x00EB,  8}, {0x01DC,  9}, {0x00EF,  8},
+        {0x01DD,  9}, {0x01F0,  9}, {0x2198, 15}, {0x2199, 15},
+        {0x00F9,  8}, {0x03E2, 10}, {0x219A, 15}, {0x219B, 15},
+        {0x00FA,  8}, {0x219C, 15}, {0x219D, 15}, {0x219E, 15},
+        {0x219F, 15}, {0x01F6,  9}, {0x21B0, 15}, {0x00FC,  8},
+        {0x01F7,  9}, {0x21B1, 15}, {0x21B2, 15}, {0x21B3, 15},
+        {0x21B4, 15}, {0x01FA,  9}, {0x21B5, 15}, {0x21B6, 15},
+        {0x21B7, 15}, {0x21B8, 15}, {0x21B9, 15}, {0x03E3, 10},
+        {0x10DD, 14}, {0x007F,  7}, {0x01FB,  9}, {0x10DE, 14},
+        {0x10DF, 14},
+    }
+};
+#define MAX_AC_VLC_BITS 16
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index 8046f33935..2a8d154b5f 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -1100,8 +1100,8 @@ static int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
         if (v->multires && v->s.pict_type != B_TYPE) v->respic = get_bits(gb, 2);
 
     if(v->res_x8 && (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)){
-        if(get_bits1(gb))return -1;
-    }
+        v->x8_type = get_bits1(gb);
+    }else v->x8_type = 0;
 //av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
 //        (v->s.pict_type == P_TYPE) ? 'P' : ((v->s.pict_type == I_TYPE) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
 
@@ -1234,6 +1234,8 @@ static int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
         break;
     }
 
+  if(!v->x8_type)
+  {
     /* AC Syntax */
     v->c_ac_table_index = decode012(gb);
     if (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
@@ -1242,6 +1244,7 @@ static int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
     }
     /* DC Syntax */
     v->s.dc_table_index = get_bits1(gb);
+  }
 
     if(v->s.pict_type == BI_TYPE) {
         v->s.pict_type = B_TYPE;
@@ -3755,6 +3758,9 @@ static void vc1_decode_blocks(VC1Context *v)
 {
 
     v->s.esc3_level_length = 0;
+    if(v->x8_type){
+        ff_intrax8_decode_picture(&v->x8, 2*v->pq+v->halfpq, v->pq*(!v->pquantizer) );
+    }else
 
     switch(v->s.pict_type) {
     case I_TYPE:
@@ -3835,6 +3841,10 @@ static int vc1_decode_init(AVCodecContext *avctx)
     avctx->flags |= CODEC_FLAG_EMU_EDGE;
     v->s.flags |= CODEC_FLAG_EMU_EDGE;
 
+    if(avctx->idct_algo==FF_IDCT_AUTO){
+        avctx->idct_algo=FF_IDCT_WMV2;
+    }
+
     if(ff_h263_decode_init(avctx) < 0)
         return -1;
     if (vc1_init_common(v) < 0) return -1;
@@ -3935,6 +3945,7 @@ static int vc1_decode_init(AVCodecContext *avctx)
 //            return -1;
     }
 
+    ff_intrax8_common_init(&v->x8,s);
     return 0;
 }
 
diff --git a/libavcodec/vc1.h b/libavcodec/vc1.h
index 7412dde9b5..bc611b30ff 100644
--- a/libavcodec/vc1.h
+++ b/libavcodec/vc1.h
@@ -25,6 +25,7 @@
 
 #include "avcodec.h"
 #include "mpegvideo.h"
+#include "intrax8.h"
 
 /** Markers used in VC-1 AP frame data */
 //@{
@@ -156,6 +157,7 @@ enum COTypes {
  */
 typedef struct VC1Context{
     MpegEncContext s;
+    IntraX8Context x8;
 
     int bits;
 
@@ -302,6 +304,7 @@ typedef struct VC1Context{
 
     int p_frame_skipped;
     int bi_type;
+    int x8_type;
 } VC1Context;
 
 #endif /* FFMPEG_VC1_H */
diff --git a/libavcodec/wmv2.c b/libavcodec/wmv2.c
index 16e9dfdcff..365f5654f8 100644
--- a/libavcodec/wmv2.c
+++ b/libavcodec/wmv2.c
@@ -29,6 +29,7 @@
 #include "msmpeg4.h"
 #include "msmpeg4data.h"
 #include "simple_idct.h"
+#include "intrax8.h"
 
 #define SKIP_TYPE_NONE 0
 #define SKIP_TYPE_MPEG 1
@@ -38,6 +39,7 @@
 
 typedef struct Wmv2Context{
     MpegEncContext s;
+    IntraX8Context x8;
     int j_type_bit;
     int j_type;
     int abt_flag;
@@ -472,12 +474,9 @@ int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s)
 s->picture_number++; //FIXME ?
 
 
-//    if(w->j_type)
-//        return wmv2_decode_j_picture(w); //FIXME
-
     if(w->j_type){
-        av_log(s->avctx, AV_LOG_ERROR, "J-type picture is not supported\n");
-        return -1;
+        ff_intrax8_decode_picture(&w->x8, 2*s->qscale, (s->qscale-1)|1 );
+        return 1;
     }
 
     return 0;
@@ -830,11 +829,17 @@ int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
 static int wmv2_decode_init(AVCodecContext *avctx){
     Wmv2Context * const w= avctx->priv_data;
 
+    if(avctx->idct_algo==FF_IDCT_AUTO){
+        avctx->idct_algo=FF_IDCT_WMV2;
+    }
+
     if(ff_h263_decode_init(avctx) < 0)
         return -1;
 
     wmv2_common_init(w);
 
+    ff_intrax8_common_init(&w->x8,&w->s);
+
     return 0;
 }