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FFmpeg/libavcodec/vc1.c

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  1. /*

  2.  * VC-1 and WMV3 decoder common code

  3.  * Copyright (c) 2011 Mashiat Sarker Shakkhar

  4.  * Copyright (c) 2006-2007 Konstantin Shishkov

  5.  * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer

  6.  *

  7.  * This file is part of FFmpeg.

  8.  *

  9.  * FFmpeg is free software; you can redistribute it and/or

  10.  * modify it under the terms of the GNU Lesser General Public

  11.  * License as published by the Free Software Foundation; either

  12.  * version 2.1 of the License, or (at your option) any later version.

  13.  *

  14.  * FFmpeg is distributed in the hope that it will be useful,

  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  17.  * Lesser General Public License for more details.

  18.  *

  19.  * You should have received a copy of the GNU Lesser General Public

  20.  * License along with FFmpeg; if not, write to the Free Software

  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  22.  */

  23. 

  24. /**

  25.  * @file

  26.  * VC-1 and WMV3 decoder common code

  27.  *

  28.  */

  29. 

  30. #include "internal.h"

  31. #include "dsputil.h"

  32. #include "avcodec.h"

  33. #include "mpegvideo.h"

  34. #include "vc1.h"

  35. #include "vc1data.h"

  36. #include "msmpeg4data.h"

  37. #include "unary.h"

  38. #include "simple_idct.h"

  39. 

  40. #undef NDEBUG

  41. #include <assert.h>

  42. 

  43. /***********************************************************************/

  44. /**

  45.  * @name VC-1 Bitplane decoding

  46.  * @see 8.7, p56

  47.  * @{

  48.  */

  49. 

  50. /**

  51.  * Imode types

  52.  * @{

  53.  */

  54. enum Imode {

  55.     IMODE_RAW,

  56.     IMODE_NORM2,

  57.     IMODE_DIFF2,

  58.     IMODE_NORM6,

  59.     IMODE_DIFF6,

  60.     IMODE_ROWSKIP,

  61.     IMODE_COLSKIP

  62. };

  63. /** @} */ //imode defines

  64. 

  65. /** Decode rows by checking if they are skipped

  66.  * @param plane Buffer to store decoded bits

  67.  * @param[in] width Width of this buffer

  68.  * @param[in] height Height of this buffer

  69.  * @param[in] stride of this buffer

  70.  */

  71. static void decode_rowskip(uint8_t* plane, int width, int height, int stride,

  72.                            GetBitContext *gb)

  73. {

  74.     int x, y;

  75. 

  76.     for (y = 0; y < height; y++) {

  77.         if (!get_bits1(gb)) //rowskip

  78.             memset(plane, 0, width);

  79.         else

  80.             for (x = 0; x < width; x++)

  81.                 plane[x] = get_bits1(gb);

  82.         plane += stride;

  83.     }

  84. }

  85. 

  86. /** Decode columns by checking if they are skipped

  87.  * @param plane Buffer to store decoded bits

  88.  * @param[in] width Width of this buffer

  89.  * @param[in] height Height of this buffer

  90.  * @param[in] stride of this buffer

  91.  * @todo FIXME: Optimize

  92.  */

  93. static void decode_colskip(uint8_t* plane, int width, int height, int stride,

  94.                            GetBitContext *gb)

  95. {

  96.     int x, y;

  97. 

  98.     for (x = 0; x < width; x++) {

  99.         if (!get_bits1(gb)) //colskip

  100.             for (y = 0; y < height; y++)

  101.                 plane[y*stride] = 0;

  102.         else

  103.             for (y = 0; y < height; y++)

  104.                 plane[y*stride] = get_bits1(gb);

  105.         plane ++;

  106.     }

  107. }

  108. 

  109. /** Decode a bitplane's bits

  110.  * @param data bitplane where to store the decode bits

  111.  * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly

  112.  * @param v VC-1 context for bit reading and logging

  113.  * @return Status

  114.  * @todo FIXME: Optimize

  115.  */

  116. static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)

  117. {

  118.     GetBitContext *gb = &v->s.gb;

  119. 

  120.     int imode, x, y, code, offset;

  121.     uint8_t invert, *planep = data;

  122.     int width, height, stride;

  123. 

  124.     width  = v->s.mb_width;

  125.     height = v->s.mb_height >> v->field_mode;

  126.     stride = v->s.mb_stride;

  127.     invert = get_bits1(gb);

  128.     imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);

  129. 

  130.     *raw_flag = 0;

  131.     switch (imode) {

  132.     case IMODE_RAW:

  133.         //Data is actually read in the MB layer (same for all tests == "raw")

  134.         *raw_flag = 1; //invert ignored

  135.         return invert;

  136.     case IMODE_DIFF2:

  137.     case IMODE_NORM2:

  138.         if ((height * width) & 1) {

  139.             *planep++ = get_bits1(gb);

  140.             offset    = 1;

  141.         }

  142.         else

  143.             offset = 0;

  144.         // decode bitplane as one long line

  145.         for (y = offset; y < height * width; y += 2) {

  146.             code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);

  147.             *planep++ = code & 1;

  148.             offset++;

  149.             if (offset == width) {

  150.                 offset  = 0;

  151.                 planep += stride - width;

  152.             }

  153.             *planep++ = code >> 1;

  154.             offset++;

  155.             if (offset == width) {

  156.                 offset  = 0;

  157.                 planep += stride - width;

  158.             }

  159.         }

  160.         break;

  161.     case IMODE_DIFF6:

  162.     case IMODE_NORM6:

  163.         if (!(height % 3) && (width % 3)) { // use 2x3 decoding

  164.             for (y = 0; y < height; y += 3) {

  165.                 for (x = width & 1; x < width; x += 2) {

  166.                     code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);

  167.                     if (code < 0) {

  168.                         av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");

  169.                         return -1;

  170.                     }

  171.                     planep[x + 0]              = (code >> 0) & 1;

  172.                     planep[x + 1]              = (code >> 1) & 1;

  173.                     planep[x + 0 + stride]     = (code >> 2) & 1;

  174.                     planep[x + 1 + stride]     = (code >> 3) & 1;

  175.                     planep[x + 0 + stride * 2] = (code >> 4) & 1;

  176.                     planep[x + 1 + stride * 2] = (code >> 5) & 1;

  177.                 }

  178.                 planep += stride * 3;

  179.             }

  180.             if (width & 1)

  181.                 decode_colskip(data, 1, height, stride, &v->s.gb);

  182.         } else { // 3x2

  183.             planep += (height & 1) * stride;

  184.             for (y = height & 1; y < height; y += 2) {

  185.                 for (x = width % 3; x < width; x += 3) {

  186.                     code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);

  187.                     if (code < 0) {

  188.                         av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");

  189.                         return -1;

  190.                     }

  191.                     planep[x + 0]          = (code >> 0) & 1;

  192.                     planep[x + 1]          = (code >> 1) & 1;

  193.                     planep[x + 2]          = (code >> 2) & 1;

  194.                     planep[x + 0 + stride] = (code >> 3) & 1;

  195.                     planep[x + 1 + stride] = (code >> 4) & 1;

  196.                     planep[x + 2 + stride] = (code >> 5) & 1;

  197.                 }

  198.                 planep += stride * 2;

  199.             }

  200.             x = width % 3;

  201.             if (x)

  202.                 decode_colskip(data,             x, height, stride, &v->s.gb);

  203.             if (height & 1)

  204.                 decode_rowskip(data + x, width - x,      1, stride, &v->s.gb);

  205.         }

  206.         break;

  207.     case IMODE_ROWSKIP:

  208.         decode_rowskip(data, width, height, stride, &v->s.gb);

  209.         break;

  210.     case IMODE_COLSKIP:

  211.         decode_colskip(data, width, height, stride, &v->s.gb);

  212.         break;

  213.     default:

  214.         break;

  215.     }

  216. 

  217.     /* Applying diff operator */

  218.     if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {

  219.         planep = data;

  220.         planep[0] ^= invert;

  221.         for (x = 1; x < width; x++)

  222.             planep[x] ^= planep[x-1];

  223.         for (y = 1; y < height; y++) {

  224.             planep += stride;

  225.             planep[0] ^= planep[-stride];

  226.             for (x = 1; x < width; x++) {

  227.                 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;

  228.                 else                                 planep[x] ^= planep[x-1];

  229.             }

  230.         }

  231.     } else if (invert) {

  232.         planep = data;

  233.         for (x = 0; x < stride * height; x++)

  234.             planep[x] = !planep[x]; //FIXME stride

  235.     }

  236.     return (imode << 1) + invert;

  237. }

  238. 

  239. /** @} */ //Bitplane group

  240. 

  241. /***********************************************************************/

  242. /** VOP Dquant decoding

  243.  * @param v VC-1 Context

  244.  */

  245. static int vop_dquant_decoding(VC1Context *v)

  246. {

  247.     GetBitContext *gb = &v->s.gb;

  248.     int pqdiff;

  249. 

  250.     //variable size

  251.     if (v->dquant == 2) {

  252.         pqdiff = get_bits(gb, 3);

  253.         if (pqdiff == 7)

  254.             v->altpq = get_bits(gb, 5);

  255.         else

  256.             v->altpq = v->pq + pqdiff + 1;

  257.     } else {

  258.         v->dquantfrm = get_bits1(gb);

  259.         if (v->dquantfrm) {

  260.             v->dqprofile = get_bits(gb, 2);

  261.             switch (v->dqprofile) {

  262.             case DQPROFILE_SINGLE_EDGE:

  263.             case DQPROFILE_DOUBLE_EDGES:

  264.                 v->dqsbedge = get_bits(gb, 2);

  265.                 break;

  266.             case DQPROFILE_ALL_MBS:

  267.                 v->dqbilevel = get_bits1(gb);

  268.                 if (!v->dqbilevel)

  269.                     v->halfpq = 0;

  270.             default:

  271.                 break; //Forbidden ?

  272.             }

  273.             if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {

  274.                 pqdiff = get_bits(gb, 3);

  275.                 if (pqdiff == 7)

  276.                     v->altpq = get_bits(gb, 5);

  277.                 else

  278.                     v->altpq = v->pq + pqdiff + 1;

  279.             }

  280.         }

  281.     }

  282.     return 0;

  283. }

  284. 

  285. static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);

  286. 

  287. /**

  288.  * Decode Simple/Main Profiles sequence header

  289.  * @see Figure 7-8, p16-17

  290.  * @param avctx Codec context

  291.  * @param gb GetBit context initialized from Codec context extra_data

  292.  * @return Status

  293.  */

  294. int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)

  295. {

  296.     av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));

  297.     v->profile = get_bits(gb, 2);

  298.     if (v->profile == PROFILE_COMPLEX) {

  299.         av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");

  300.     }

  301. 

  302.     if (v->profile == PROFILE_ADVANCED) {

  303.         v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;

  304.         v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;

  305.         return decode_sequence_header_adv(v, gb);

  306.     } else {

  307.         v->zz_8x4 = ff_wmv2_scantableA;

  308.         v->zz_4x8 = ff_wmv2_scantableB;

  309.         v->res_y411   = get_bits1(gb);

  310.         v->res_sprite = get_bits1(gb);

  311.         if (v->res_y411) {

  312.             av_log(avctx, AV_LOG_ERROR,

  313.                    "Old interlaced mode is not supported\n");

  314.             return -1;

  315.         }

  316.     }

  317. 

  318.     // (fps-2)/4 (->30)

  319.     v->frmrtq_postproc = get_bits(gb, 3); //common

  320.     // (bitrate-32kbps)/64kbps

  321.     v->bitrtq_postproc = get_bits(gb, 5); //common

  322.     v->s.loop_filter   = get_bits1(gb); //common

  323.     if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {

  324.         av_log(avctx, AV_LOG_ERROR,

  325.                "LOOPFILTER shall not be enabled in Simple Profile\n");

  326.     }

  327.     if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)

  328.         v->s.loop_filter = 0;

  329. 

  330.     v->res_x8          = get_bits1(gb); //reserved

  331.     v->multires        = get_bits1(gb);

  332.     v->res_fasttx      = get_bits1(gb);

  333.     if (!v->res_fasttx) {

  334.         v->vc1dsp.vc1_inv_trans_8x8    = ff_simple_idct_8;

  335.         v->vc1dsp.vc1_inv_trans_8x4    = ff_simple_idct84_add;

  336.         v->vc1dsp.vc1_inv_trans_4x8    = ff_simple_idct48_add;

  337.         v->vc1dsp.vc1_inv_trans_4x4    = ff_simple_idct44_add;

  338.         v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;

  339.         v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;

  340.         v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;

  341.         v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;

  342.     }

  343. 

  344.     v->fastuvmc        = get_bits1(gb); //common

  345.     if (!v->profile && !v->fastuvmc) {

  346.         av_log(avctx, AV_LOG_ERROR,

  347.                "FASTUVMC unavailable in Simple Profile\n");

  348.         return -1;

  349.     }

  350.     v->extended_mv     = get_bits1(gb); //common

  351.     if (!v->profile && v->extended_mv)

  352.     {

  353.         av_log(avctx, AV_LOG_ERROR,

  354.                "Extended MVs unavailable in Simple Profile\n");

  355.         return -1;

  356.     }

  357.     v->dquant          = get_bits(gb, 2); //common

  358.     v->vstransform     = get_bits1(gb); //common

  359. 

  360.     v->res_transtab    = get_bits1(gb);

  361.     if (v->res_transtab)

  362.     {

  363.         av_log(avctx, AV_LOG_ERROR,

  364.                "1 for reserved RES_TRANSTAB is forbidden\n");

  365.         return -1;

  366.     }

  367. 

  368.     v->overlap         = get_bits1(gb); //common

  369. 

  370.     v->s.resync_marker = get_bits1(gb);

  371.     v->rangered        = get_bits1(gb);

  372.     if (v->rangered && v->profile == PROFILE_SIMPLE) {

  373.         av_log(avctx, AV_LOG_INFO,

  374.                "RANGERED should be set to 0 in Simple Profile\n");

  375.     }

  376. 

  377.     v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common

  378.     v->quantizer_mode = get_bits(gb, 2); //common

  379. 

  380.     v->finterpflag = get_bits1(gb); //common

  381. 

  382.     if (v->res_sprite) {

  383.         int w = get_bits(gb, 11);

  384.         int h = get_bits(gb, 11);

  385.         avcodec_set_dimensions(v->s.avctx, w, h);

  386.         skip_bits(gb, 5); //frame rate

  387.         v->res_x8 = get_bits1(gb);

  388.         if (get_bits1(gb)) { // something to do with DC VLC selection

  389.             av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");

  390.             return -1;

  391.         }

  392.         skip_bits(gb, 3); //slice code

  393.         v->res_rtm_flag = 0;

  394.     } else {

  395.         v->res_rtm_flag = get_bits1(gb); //reserved

  396.     }

  397.     if (!v->res_rtm_flag) {

  398. //            av_log(avctx, AV_LOG_ERROR,

  399. //                   "0 for reserved RES_RTM_FLAG is forbidden\n");

  400.         av_log(avctx, AV_LOG_ERROR,

  401.                "Old WMV3 version detected, some frames may be decoded incorrectly\n");

  402.         //return -1;

  403.     }

  404.     //TODO: figure out what they mean (always 0x402F)

  405.     if (!v->res_fasttx)

  406.         skip_bits(gb, 16);

  407.     av_log(avctx, AV_LOG_DEBUG,

  408.            "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"

  409.            "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"

  410.            "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"

  411.            "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",

  412.            v->profile, v->frmrtq_postproc, v->bitrtq_postproc,

  413.            v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,

  414.            v->rangered, v->vstransform, v->overlap, v->s.resync_marker,

  415.            v->dquant, v->quantizer_mode, avctx->max_b_frames);

  416.     return 0;

  417. }

  418. 

  419. static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)

  420. {

  421.     v->res_rtm_flag = 1;

  422.     v->level = get_bits(gb, 3);

  423.     if (v->level >= 5) {

  424.         av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);

  425.     }

  426.     v->chromaformat = get_bits(gb, 2);

  427.     if (v->chromaformat != 1) {

  428.         av_log(v->s.avctx, AV_LOG_ERROR,

  429.                "Only 4:2:0 chroma format supported\n");

  430.         return -1;

  431.     }

  432. 

  433.     // (fps-2)/4 (->30)

  434.     v->frmrtq_postproc       = get_bits(gb, 3); //common

  435.     // (bitrate-32kbps)/64kbps

  436.     v->bitrtq_postproc       = get_bits(gb, 5); //common

  437.     v->postprocflag          = get_bits1(gb);   //common

  438. 

  439.     v->max_coded_width       = (get_bits(gb, 12) + 1) << 1;

  440.     v->max_coded_height      = (get_bits(gb, 12) + 1) << 1;

  441.     v->broadcast             = get_bits1(gb);

  442.     v->interlace             = get_bits1(gb);

  443.     v->tfcntrflag            = get_bits1(gb);

  444.     v->finterpflag           = get_bits1(gb);

  445.     skip_bits1(gb); // reserved

  446. 

  447.     av_log(v->s.avctx, AV_LOG_DEBUG,

  448.            "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"

  449.            "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"

  450.            "TFCTRflag=%i, FINTERPflag=%i\n",

  451.            v->level, v->frmrtq_postproc, v->bitrtq_postproc,

  452.            v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,

  453.            v->tfcntrflag, v->finterpflag);

  454. 

  455.     v->psf = get_bits1(gb);

  456.     if (v->psf) { //PsF, 6.1.13

  457.         av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");

  458.         return -1;

  459.     }

  460.     v->s.max_b_frames = v->s.avctx->max_b_frames = 7;

  461.     if (get_bits1(gb)) { //Display Info - decoding is not affected by it

  462.         int w, h, ar = 0;

  463.         av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");

  464.         w = get_bits(gb, 14) + 1;

  465.         h = get_bits(gb, 14) + 1;

  466.         av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);

  467.         if (get_bits1(gb))

  468.             ar = get_bits(gb, 4);

  469.         if (ar && ar < 14) {

  470.             v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];

  471.         } else if (ar == 15) {

  472.             w = get_bits(gb, 8) + 1;

  473.             h = get_bits(gb, 8) + 1;

  474.             v->s.avctx->sample_aspect_ratio = (AVRational){w, h};

  475.         } else {

  476.             av_reduce(&v->s.avctx->sample_aspect_ratio.num,

  477.                       &v->s.avctx->sample_aspect_ratio.den,

  478.                       v->s.avctx->height * w,

  479.                       v->s.avctx->width * h,

  480.                       1 << 30);

  481.         }

  482.         av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",

  483.                v->s.avctx->sample_aspect_ratio.num,

  484.                v->s.avctx->sample_aspect_ratio.den);

  485. 

  486.         if (get_bits1(gb)) { //framerate stuff

  487.             if (get_bits1(gb)) {

  488.                 v->s.avctx->time_base.num = 32;

  489.                 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;

  490.             } else {

  491.                 int nr, dr;

  492.                 nr = get_bits(gb, 8);

  493.                 dr = get_bits(gb, 4);

  494.                 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {

  495.                     v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];

  496.                     v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;

  497.                 }

  498.             }

  499.             if (v->broadcast) { // Pulldown may be present

  500.                 v->s.avctx->time_base.den  *= 2;

  501.                 v->s.avctx->ticks_per_frame = 2;

  502.             }

  503.         }

  504. 

  505.         if (get_bits1(gb)) {

  506.             v->color_prim    = get_bits(gb, 8);

  507.             v->transfer_char = get_bits(gb, 8);

  508.             v->matrix_coef   = get_bits(gb, 8);

  509.         }

  510.     }

  511. 

  512.     v->hrd_param_flag = get_bits1(gb);

  513.     if (v->hrd_param_flag) {

  514.         int i;

  515.         v->hrd_num_leaky_buckets = get_bits(gb, 5);

  516.         skip_bits(gb, 4); //bitrate exponent

  517.         skip_bits(gb, 4); //buffer size exponent

  518.         for (i = 0; i < v->hrd_num_leaky_buckets; i++) {

  519.             skip_bits(gb, 16); //hrd_rate[n]

  520.             skip_bits(gb, 16); //hrd_buffer[n]

  521.         }

  522.     }

  523.     return 0;

  524. }

  525. 

  526. int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)

  527. {

  528.     int i;

  529.     int w,h;

  530. 

  531.     av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));

  532.     v->broken_link    = get_bits1(gb);

  533.     v->closed_entry   = get_bits1(gb);

  534.     v->panscanflag    = get_bits1(gb);

  535.     v->refdist_flag   = get_bits1(gb);

  536.     v->s.loop_filter  = get_bits1(gb);

  537.     if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)

  538.         v->s.loop_filter = 0;

  539.     v->fastuvmc       = get_bits1(gb);

  540.     v->extended_mv    = get_bits1(gb);

  541.     v->dquant         = get_bits(gb, 2);

  542.     v->vstransform    = get_bits1(gb);

  543.     v->overlap        = get_bits1(gb);

  544.     v->quantizer_mode = get_bits(gb, 2);

  545. 

  546.     if (v->hrd_param_flag) {

  547.         for (i = 0; i < v->hrd_num_leaky_buckets; i++) {

  548.             skip_bits(gb, 8); //hrd_full[n]

  549.         }

  550.     }

  551. 

  552.     if(get_bits1(gb)){

  553.         w = (get_bits(gb, 12)+1)<<1;

  554.         h = (get_bits(gb, 12)+1)<<1;

  555.     } else {

  556.         w = v->max_coded_width;

  557.         h = v->max_coded_height;

  558.     }

  559.     avcodec_set_dimensions(avctx, w, h);

  560.     if (v->extended_mv)

  561.         v->extended_dmv = get_bits1(gb);

  562.     if ((v->range_mapy_flag = get_bits1(gb))) {

  563.         av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");

  564.         v->range_mapy = get_bits(gb, 3);

  565.     }

  566.     if ((v->range_mapuv_flag = get_bits1(gb))) {

  567.         av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");

  568.         v->range_mapuv = get_bits(gb, 3);

  569.     }

  570. 

  571.     av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"

  572.            "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"

  573.            "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"

  574.            "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",

  575.            v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,

  576.            v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);

  577. 

  578.     return 0;

  579. }

  580. 

  581. int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)

  582. {

  583.     int pqindex, lowquant, status;

  584. 

  585.     if (v->finterpflag)

  586.         v->interpfrm = get_bits1(gb);

  587.     skip_bits(gb, 2); //framecnt unused

  588.     v->rangeredfrm = 0;

  589.     if (v->rangered)

  590.         v->rangeredfrm = get_bits1(gb);

  591.     v->s.pict_type = get_bits1(gb);

  592.     if (v->s.avctx->max_b_frames) {

  593.         if (!v->s.pict_type) {

  594.             if (get_bits1(gb))

  595.                 v->s.pict_type = AV_PICTURE_TYPE_I;

  596.             else

  597.                 v->s.pict_type = AV_PICTURE_TYPE_B;

  598.         } else

  599.             v->s.pict_type = AV_PICTURE_TYPE_P;

  600.     } else

  601.         v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;

  602. 

  603.     v->bi_type = 0;

  604.     if (v->s.pict_type == AV_PICTURE_TYPE_B) {

  605.         v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);

  606.         v->bfraction           = ff_vc1_bfraction_lut[v->bfraction_lut_index];

  607.         if (v->bfraction == 0) {

  608.             v->s.pict_type = AV_PICTURE_TYPE_BI;

  609.         }

  610.     }

  611.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)

  612.         skip_bits(gb, 7); // skip buffer fullness

  613. 

  614.     if (v->parse_only)

  615.         return 0;

  616. 

  617.     /* calculate RND */

  618.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)

  619.         v->rnd = 1;

  620.     if (v->s.pict_type == AV_PICTURE_TYPE_P)

  621.         v->rnd ^= 1;

  622. 

  623.     /* Quantizer stuff */

  624.     pqindex = get_bits(gb, 5);

  625.     if (!pqindex)

  626.         return -1;

  627.     if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)

  628.         v->pq = ff_vc1_pquant_table[0][pqindex];

  629.     else

  630.         v->pq = ff_vc1_pquant_table[1][pqindex];

  631. 

  632.     v->pquantizer = 1;

  633.     if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)

  634.         v->pquantizer = pqindex < 9;

  635.     if (v->quantizer_mode == QUANT_NON_UNIFORM)

  636.         v->pquantizer = 0;

  637.     v->pqindex = pqindex;

  638.     if (pqindex < 9)

  639.         v->halfpq = get_bits1(gb);

  640.     else

  641.         v->halfpq = 0;

  642.     if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)

  643.         v->pquantizer = get_bits1(gb);

  644.     v->dquantfrm = 0;

  645.     if (v->extended_mv == 1)

  646.         v->mvrange = get_unary(gb, 0, 3);

  647.     v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13

  648.     v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11

  649.     v->range_x = 1 << (v->k_x - 1);

  650.     v->range_y = 1 << (v->k_y - 1);

  651.     if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)

  652.         v->respic = get_bits(gb, 2);

  653. 

  654.     if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {

  655.         v->x8_type = get_bits1(gb);

  656.     } else

  657.         v->x8_type = 0;

  658. //av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",

  659. //        (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);

  660. 

  661.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)

  662.         v->use_ic = 0;

  663. 

  664.     switch (v->s.pict_type) {

  665.     case AV_PICTURE_TYPE_P:

  666.         if (v->pq < 5)       v->tt_index = 0;

  667.         else if (v->pq < 13) v->tt_index = 1;

  668.         else                 v->tt_index = 2;

  669. 

  670.         lowquant = (v->pq > 12) ? 0 : 1;

  671.         v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];

  672.         if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  673.             int scale, shift, i;

  674.             v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];

  675.             v->lumscale = get_bits(gb, 6);

  676.             v->lumshift = get_bits(gb, 6);

  677.             v->use_ic   = 1;

  678.             /* fill lookup tables for intensity compensation */

  679.             if (!v->lumscale) {

  680.                 scale = -64;

  681.                 shift = (255 - v->lumshift * 2) << 6;

  682.                 if (v->lumshift > 31)

  683.                     shift += 128 << 6;

  684.             } else {

  685.                 scale = v->lumscale + 32;

  686.                 if (v->lumshift > 31)

  687.                     shift = (v->lumshift - 64) << 6;

  688.                 else

  689.                     shift = v->lumshift << 6;

  690.             }

  691.             for (i = 0; i < 256; i++) {

  692.                 v->luty[i]  = av_clip_uint8((scale * i + shift + 32) >> 6);

  693.                 v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);

  694.             }

  695.         }

  696.         v->qs_last = v->s.quarter_sample;

  697.         if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)

  698.             v->s.quarter_sample = 0;

  699.         else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  700.             if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)

  701.                 v->s.quarter_sample = 0;

  702.             else

  703.                 v->s.quarter_sample = 1;

  704.         } else

  705.             v->s.quarter_sample = 1;

  706.         v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));

  707. 

  708.         if ((v->mv_mode  == MV_PMODE_INTENSITY_COMP &&

  709.              v->mv_mode2 == MV_PMODE_MIXED_MV)      ||

  710.             v->mv_mode   == MV_PMODE_MIXED_MV) {

  711.             status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);

  712.             if (status < 0)

  713.                 return -1;

  714.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "

  715.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  716.         } else {

  717.             v->mv_type_is_raw = 0;

  718.             memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);

  719.         }

  720.         status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  721.         if (status < 0)

  722.             return -1;

  723.         av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  724.                "Imode: %i, Invert: %i\n", status>>1, status&1);

  725. 

  726.         /* Hopefully this is correct for P frames */

  727.         v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables

  728.         v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  729. 

  730.         if (v->dquant) {

  731.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  732.             vop_dquant_decoding(v);

  733.         }

  734. 

  735.         v->ttfrm = 0; //FIXME Is that so ?

  736.         if (v->vstransform) {

  737.             v->ttmbf = get_bits1(gb);

  738.             if (v->ttmbf) {

  739.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  740.             }

  741.         } else {

  742.             v->ttmbf = 1;

  743.             v->ttfrm = TT_8X8;

  744.         }

  745.         break;

  746.     case AV_PICTURE_TYPE_B:

  747.         if (v->pq < 5)       v->tt_index = 0;

  748.         else if (v->pq < 13) v->tt_index = 1;

  749.         else                 v->tt_index = 2;

  750. 

  751.         v->mv_mode          = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;

  752.         v->qs_last          = v->s.quarter_sample;

  753.         v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);

  754.         v->s.mspel          = v->s.quarter_sample;

  755. 

  756.         status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);

  757.         if (status < 0)

  758.             return -1;

  759.         av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "

  760.                "Imode: %i, Invert: %i\n", status>>1, status&1);

  761.         status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  762.         if (status < 0)

  763.             return -1;

  764.         av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  765.                "Imode: %i, Invert: %i\n", status>>1, status&1);

  766. 

  767.         v->s.mv_table_index = get_bits(gb, 2);

  768.         v->cbpcy_vlc        = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  769. 

  770.         if (v->dquant) {

  771.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  772.             vop_dquant_decoding(v);

  773.         }

  774. 

  775.         v->ttfrm = 0;

  776.         if (v->vstransform) {

  777.             v->ttmbf = get_bits1(gb);

  778.             if (v->ttmbf) {

  779.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  780.             }

  781.         } else {

  782.             v->ttmbf = 1;

  783.             v->ttfrm = TT_8X8;

  784.         }

  785.         break;

  786.     }

  787. 

  788.     if (!v->x8_type) {

  789.         /* AC Syntax */

  790.         v->c_ac_table_index = decode012(gb);

  791.         if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {

  792.             v->y_ac_table_index = decode012(gb);

  793.         }

  794.         /* DC Syntax */

  795.         v->s.dc_table_index = get_bits1(gb);

  796.     }

  797. 

  798.     if (v->s.pict_type == AV_PICTURE_TYPE_BI) {

  799.         v->s.pict_type = AV_PICTURE_TYPE_B;

  800.         v->bi_type     = 1;

  801.     }

  802.     return 0;

  803. }

  804. 

  805. /* fill lookup tables for intensity compensation */

  806. #define INIT_LUT(lumscale, lumshift, luty, lutuv)   \

  807.     if (!lumscale) {                                \

  808.         scale = -64;                                \

  809.         shift = (255 - lumshift * 2) << 6;          \

  810.         if (lumshift > 31)                          \

  811.             shift += 128 << 6;                      \

  812.     } else {                                        \

  813.         scale = lumscale + 32;                      \

  814.         if (lumshift > 31)                          \

  815.             shift = (lumshift - 64) << 6;           \

  816.         else                                        \

  817.             shift = lumshift << 6;                  \

  818.     }                                               \

  819.     for (i = 0; i < 256; i++) {                     \

  820.         luty[i]  = av_clip_uint8((scale * i + shift + 32) >> 6);           \

  821.         lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);  \

  822.     }

  823. 

  824. int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)

  825. {

  826.     int pqindex, lowquant;

  827.     int status;

  828.     int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */

  829.     int scale, shift, i; /* for initializing LUT for intensity compensation */

  830. 

  831.     v->numref=0;

  832.     v->p_frame_skipped = 0;

  833.     if (v->second_field) {

  834.         if(v->fcm!=2 || v->field_mode!=1)

  835.             return -1;

  836.         v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;

  837.         if (v->fptype & 4)

  838.             v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;

  839.         v->s.current_picture_ptr->f.pict_type = v->s.pict_type;

  840.         if (!v->pic_header_flag)

  841.             goto parse_common_info;

  842.     }

  843. 

  844.     v->field_mode = 0;

  845.     if (v->interlace) {

  846.         v->fcm = decode012(gb);

  847.         if (v->fcm) {

  848.             if (v->fcm == ILACE_FIELD)

  849.                 v->field_mode = 1;

  850.             if (!v->warn_interlaced++)

  851.                 av_log(v->s.avctx, AV_LOG_ERROR,

  852.                        "Interlaced frames/fields support is incomplete\n");

  853.         }

  854.     } else {

  855.         v->fcm = PROGRESSIVE;

  856.     }

  857. 

  858.     if (v->field_mode) {

  859.         v->fptype = get_bits(gb, 3);

  860.         v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;

  861.         if (v->fptype & 4) // B-picture

  862.             v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;

  863.     } else {

  864.         switch (get_unary(gb, 0, 4)) {

  865.         case 0:

  866.             v->s.pict_type = AV_PICTURE_TYPE_P;

  867.             break;

  868.         case 1:

  869.             v->s.pict_type = AV_PICTURE_TYPE_B;

  870.             break;

  871.         case 2:

  872.             v->s.pict_type = AV_PICTURE_TYPE_I;

  873.             break;

  874.         case 3:

  875.             v->s.pict_type = AV_PICTURE_TYPE_BI;

  876.             break;

  877.         case 4:

  878.             v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic

  879.             v->p_frame_skipped = 1;

  880.             break;

  881.         }

  882.     }

  883.     if (v->tfcntrflag)

  884.         skip_bits(gb, 8);

  885.     if (v->broadcast) {

  886.         if (!v->interlace || v->psf) {

  887.             v->rptfrm = get_bits(gb, 2);

  888.         } else {

  889.             v->tff = get_bits1(gb);

  890.             v->rff = get_bits1(gb);

  891.         }

  892.     }

  893.     if (v->panscanflag) {

  894.         av_log_missing_feature(v->s.avctx, "Pan-scan", 0);

  895.         //...

  896.     }

  897.     if (v->p_frame_skipped) {

  898.         return 0;

  899.     }

  900.     v->rnd = get_bits1(gb);

  901.     if (v->interlace)

  902.         v->uvsamp = get_bits1(gb);

  903.     if(!ff_vc1_bfraction_vlc.table)

  904.         return 0; //parsing only, vlc tables havnt been allocated

  905.     if (v->field_mode) {

  906.         if (!v->refdist_flag)

  907.             v->refdist = 0;

  908.         else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {

  909.             v->refdist = get_bits(gb, 2);

  910.             if (v->refdist == 3)

  911.                 v->refdist += get_unary(gb, 0, 16);

  912.         }

  913.         if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {

  914.             v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);

  915.             v->bfraction           = ff_vc1_bfraction_lut[v->bfraction_lut_index];

  916.             v->frfd = (v->bfraction * v->refdist) >> 8;

  917.             v->brfd = v->refdist - v->frfd - 1;

  918.             if (v->brfd < 0)

  919.                 v->brfd = 0;

  920.         }

  921.         goto parse_common_info;

  922.     }

  923.     if (v->fcm == PROGRESSIVE) {

  924.         if (v->finterpflag)

  925.             v->interpfrm = get_bits1(gb);

  926.         if (v->s.pict_type == AV_PICTURE_TYPE_B) {

  927.             v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);

  928.             v->bfraction           = ff_vc1_bfraction_lut[v->bfraction_lut_index];

  929.             if (v->bfraction == 0) {

  930.                 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */

  931.             }

  932.         }

  933.     }

  934. 

  935.     parse_common_info:

  936.     if (v->field_mode)

  937.         v->cur_field_type = !(v->tff ^ v->second_field);

  938.     pqindex = get_bits(gb, 5);

  939.     if (!pqindex)

  940.         return -1;

  941.     v->pqindex = pqindex;

  942.     if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)

  943.         v->pq = ff_vc1_pquant_table[0][pqindex];

  944.     else

  945.         v->pq = ff_vc1_pquant_table[1][pqindex];

  946. 

  947.     v->pquantizer = 1;

  948.     if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)

  949.         v->pquantizer = pqindex < 9;

  950.     if (v->quantizer_mode == QUANT_NON_UNIFORM)

  951.         v->pquantizer = 0;

  952.     v->pqindex = pqindex;

  953.     if (pqindex < 9)

  954.         v->halfpq = get_bits1(gb);

  955.     else

  956.         v->halfpq = 0;

  957.     if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)

  958.         v->pquantizer = get_bits1(gb);

  959.     if (v->postprocflag)

  960.         v->postproc = get_bits(gb, 2);

  961. 

  962.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)

  963.         v->use_ic = 0;

  964. 

  965.     if (v->parse_only)

  966.         return 0;

  967. 

  968.     switch (v->s.pict_type) {

  969.     case AV_PICTURE_TYPE_I:

  970.     case AV_PICTURE_TYPE_BI:

  971.         if (v->fcm == ILACE_FRAME) { //interlace frame picture

  972.             status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);

  973.             if (status < 0)

  974.                 return -1;

  975.             av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "

  976.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  977.         }

  978.         status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);

  979.         if (status < 0)

  980.             return -1;

  981.         av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "

  982.                "Imode: %i, Invert: %i\n", status>>1, status&1);

  983.         v->condover = CONDOVER_NONE;

  984.         if (v->overlap && v->pq <= 8) {

  985.             v->condover = decode012(gb);

  986.             if (v->condover == CONDOVER_SELECT) {

  987.                 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);

  988.                 if (status < 0)

  989.                     return -1;

  990.                 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "

  991.                        "Imode: %i, Invert: %i\n", status>>1, status&1);

  992.             }

  993.         }

  994.         break;

  995.     case AV_PICTURE_TYPE_P:

  996.         if (v->field_mode) {

  997.             v->numref = get_bits1(gb);

  998.             if (!v->numref) {

  999.                 v->reffield          = get_bits1(gb);

  1000.                 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;

  1001.             }

  1002.         }

  1003.         if (v->extended_mv)

  1004.             v->mvrange = get_unary(gb, 0, 3);

  1005.         else

  1006.             v->mvrange = 0;

  1007.         if (v->interlace) {

  1008.             if (v->extended_dmv)

  1009.                 v->dmvrange = get_unary(gb, 0, 3);

  1010.             else

  1011.                 v->dmvrange = 0;

  1012.             if (v->fcm == ILACE_FRAME) { // interlaced frame picture

  1013.                 v->fourmvswitch = get_bits1(gb);

  1014.                 v->intcomp      = get_bits1(gb);

  1015.                 if (v->intcomp) {

  1016.                     v->lumscale = get_bits(gb, 6);

  1017.                     v->lumshift = get_bits(gb, 6);

  1018.                     INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);

  1019.                 }

  1020.                 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1021.                 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "

  1022.                        "Imode: %i, Invert: %i\n", status>>1, status&1);

  1023.                 mbmodetab = get_bits(gb, 2);

  1024.                 if (v->fourmvswitch)

  1025.                     v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];

  1026.                 else

  1027.                     v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];

  1028.                 imvtab         = get_bits(gb, 2);

  1029.                 v->imv_vlc     = &ff_vc1_1ref_mvdata_vlc[imvtab];

  1030.                 // interlaced p-picture cbpcy range is [1, 63]

  1031.                 icbptab        = get_bits(gb, 3);

  1032.                 v->cbpcy_vlc   = &ff_vc1_icbpcy_vlc[icbptab];

  1033.                 twomvbptab     = get_bits(gb, 2);

  1034.                 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];

  1035.                 if (v->fourmvswitch) {

  1036.                     fourmvbptab     = get_bits(gb, 2);

  1037.                     v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1038.                 }

  1039.             }

  1040.         }

  1041.         v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13

  1042.         v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11

  1043.         v->range_x = 1 << (v->k_x - 1);

  1044.         v->range_y = 1 << (v->k_y - 1);

  1045. 

  1046.         if (v->pq < 5)

  1047.             v->tt_index = 0;

  1048.         else if (v->pq < 13)

  1049.             v->tt_index = 1;

  1050.         else

  1051.             v->tt_index = 2;

  1052.         if (v->fcm != ILACE_FRAME) {

  1053.             int mvmode;

  1054.             mvmode     = get_unary(gb, 1, 4);

  1055.             lowquant   = (v->pq > 12) ? 0 : 1;

  1056.             v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];

  1057.             if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  1058.                 int mvmode2;

  1059.                 mvmode2 = get_unary(gb, 1, 3);

  1060.                 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];

  1061.                 if (v->field_mode)

  1062.                     v->intcompfield = decode210(gb);

  1063.                 v->lumscale = get_bits(gb, 6);

  1064.                 v->lumshift = get_bits(gb, 6);

  1065.                 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);

  1066.                 if ((v->field_mode) && !v->intcompfield) {

  1067.                     v->lumscale2 = get_bits(gb, 6);

  1068.                     v->lumshift2 = get_bits(gb, 6);

  1069.                     INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);

  1070.                 }

  1071.                 v->use_ic = 1;

  1072.             }

  1073.             v->qs_last = v->s.quarter_sample;

  1074.             if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)

  1075.                 v->s.quarter_sample = 0;

  1076.             else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  1077.                 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)

  1078.                     v->s.quarter_sample = 0;

  1079.                 else

  1080.                     v->s.quarter_sample = 1;

  1081.             } else

  1082.                 v->s.quarter_sample = 1;

  1083.             v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN

  1084.                            || (v->mv_mode == MV_PMODE_INTENSITY_COMP

  1085.                                && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));

  1086.         }

  1087.         if (v->fcm == PROGRESSIVE) { // progressive

  1088.             if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&

  1089.                  v->mv_mode2 == MV_PMODE_MIXED_MV)

  1090.                 || v->mv_mode == MV_PMODE_MIXED_MV) {

  1091.                 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);

  1092.                 if (status < 0)

  1093.                     return -1;

  1094.                 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "

  1095.                        "Imode: %i, Invert: %i\n", status>>1, status&1);

  1096.             } else {

  1097.                 v->mv_type_is_raw = 0;

  1098.                 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);

  1099.             }

  1100.             status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1101.             if (status < 0)

  1102.                 return -1;

  1103.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  1104.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1105. 

  1106.             /* Hopefully this is correct for P frames */

  1107.             v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables

  1108.             v->cbpcy_vlc        = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  1109.         } else if (v->fcm == ILACE_FRAME) { // frame interlaced

  1110.             v->qs_last          = v->s.quarter_sample;

  1111.             v->s.quarter_sample = 1;

  1112.             v->s.mspel          = 1;

  1113.         } else {    // field interlaced

  1114.             mbmodetab = get_bits(gb, 3);

  1115.             imvtab = get_bits(gb, 2 + v->numref);

  1116.             if (!v->numref)

  1117.                 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];

  1118.             else

  1119.                 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];

  1120.             icbptab = get_bits(gb, 3);

  1121.             v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];

  1122.             if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&

  1123.                 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {

  1124.                 fourmvbptab     = get_bits(gb, 2);

  1125.                 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1126.                 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];

  1127.             } else {

  1128.                 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];

  1129.             }

  1130.         }

  1131.         if (v->dquant) {

  1132.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1133.             vop_dquant_decoding(v);

  1134.         }

  1135. 

  1136.         v->ttfrm = 0; //FIXME Is that so ?

  1137.         if (v->vstransform) {

  1138.             v->ttmbf = get_bits1(gb);

  1139.             if (v->ttmbf) {

  1140.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  1141.             }

  1142.         } else {

  1143.             v->ttmbf = 1;

  1144.             v->ttfrm = TT_8X8;

  1145.         }

  1146.         break;

  1147.     case AV_PICTURE_TYPE_B:

  1148.         if (v->fcm == ILACE_FRAME) {

  1149.             v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);

  1150.             v->bfraction           = ff_vc1_bfraction_lut[v->bfraction_lut_index];

  1151.             if (v->bfraction == 0) {

  1152.                 return -1;

  1153.             }

  1154.             return -1; // This codepath is still incomplete thus it is disabled

  1155.         }

  1156.         if (v->extended_mv)

  1157.             v->mvrange = get_unary(gb, 0, 3);

  1158.         else

  1159.             v->mvrange = 0;

  1160.         v->k_x     = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13

  1161.         v->k_y     = v->mvrange + 8; //k_y can be 8 9 10 11

  1162.         v->range_x = 1 << (v->k_x - 1);

  1163.         v->range_y = 1 << (v->k_y - 1);

  1164. 

  1165.         if (v->pq < 5)

  1166.             v->tt_index = 0;

  1167.         else if (v->pq < 13)

  1168.             v->tt_index = 1;

  1169.         else

  1170.             v->tt_index = 2;

  1171. 

  1172.         if (v->field_mode) {

  1173.             int mvmode;

  1174.             av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");

  1175.             if (v->extended_dmv)

  1176.                 v->dmvrange = get_unary(gb, 0, 3);

  1177.             mvmode = get_unary(gb, 1, 3);

  1178.             lowquant = (v->pq > 12) ? 0 : 1;

  1179.             v->mv_mode          = ff_vc1_mv_pmode_table2[lowquant][mvmode];

  1180.             v->qs_last          = v->s.quarter_sample;

  1181.             v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);

  1182.             v->s.mspel          = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);

  1183.             status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);

  1184.             if (status < 0)

  1185.                 return -1;

  1186.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "

  1187.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1188.             mbmodetab = get_bits(gb, 3);

  1189.             if (v->mv_mode == MV_PMODE_MIXED_MV)

  1190.                 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];

  1191.             else

  1192.                 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];

  1193.             imvtab       = get_bits(gb, 3);

  1194.             v->imv_vlc   = &ff_vc1_2ref_mvdata_vlc[imvtab];

  1195.             icbptab      = get_bits(gb, 3);

  1196.             v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];

  1197.             if (v->mv_mode == MV_PMODE_MIXED_MV) {

  1198.                 fourmvbptab     = get_bits(gb, 2);

  1199.                 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1200.             }

  1201.             v->numref = 1; // interlaced field B pictures are always 2-ref

  1202.         } else if (v->fcm == ILACE_FRAME) {

  1203.             if (v->extended_dmv)

  1204.                 v->dmvrange = get_unary(gb, 0, 3);

  1205.             get_bits1(gb); /* intcomp - present but shall always be 0 */

  1206.             v->intcomp          = 0;

  1207.             v->mv_mode          = MV_PMODE_1MV;

  1208.             v->fourmvswitch     = 0;

  1209.             v->qs_last          = v->s.quarter_sample;

  1210.             v->s.quarter_sample = 1;

  1211.             v->s.mspel          = 1;

  1212.             status              = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);

  1213.             if (status < 0)

  1214.                 return -1;

  1215.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "

  1216.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1217.             status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1218.             if (status < 0)

  1219.                 return -1;

  1220.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  1221.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1222.             mbmodetab       = get_bits(gb, 2);

  1223.             v->mbmode_vlc   = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];

  1224.             imvtab          = get_bits(gb, 2);

  1225.             v->imv_vlc      = &ff_vc1_1ref_mvdata_vlc[imvtab];

  1226.             // interlaced p/b-picture cbpcy range is [1, 63]

  1227.             icbptab         = get_bits(gb, 3);

  1228.             v->cbpcy_vlc    = &ff_vc1_icbpcy_vlc[icbptab];

  1229.             twomvbptab      = get_bits(gb, 2);

  1230.             v->twomvbp_vlc  = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];

  1231.             fourmvbptab     = get_bits(gb, 2);

  1232.             v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1233.         } else {

  1234.             v->mv_mode          = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;

  1235.             v->qs_last          = v->s.quarter_sample;

  1236.             v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);

  1237.             v->s.mspel          = v->s.quarter_sample;

  1238.             status              = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);

  1239.             if (status < 0)

  1240.                 return -1;

  1241.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "

  1242.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1243.             status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1244.             if (status < 0)

  1245.                 return -1;

  1246.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  1247.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1248.             v->s.mv_table_index = get_bits(gb, 2);

  1249.             v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  1250.         }

  1251. 

  1252.         if (v->dquant) {

  1253.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1254.             vop_dquant_decoding(v);

  1255.         }

  1256. 

  1257.         v->ttfrm = 0;

  1258.         if (v->vstransform) {

  1259.             v->ttmbf = get_bits1(gb);

  1260.             if (v->ttmbf) {

  1261.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  1262.             }

  1263.         } else {

  1264.             v->ttmbf = 1;

  1265.             v->ttfrm = TT_8X8;

  1266.         }

  1267.         break;

  1268.     }

  1269. 

  1270.     /* AC Syntax */

  1271.     v->c_ac_table_index = decode012(gb);

  1272.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {

  1273.         v->y_ac_table_index = decode012(gb);

  1274.     }

  1275.     /* DC Syntax */

  1276.     v->s.dc_table_index = get_bits1(gb);

  1277.     if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)

  1278.         && v->dquant) {

  1279.         av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1280.         vop_dquant_decoding(v);

  1281.     }

  1282. 

  1283.     v->bi_type = 0;

  1284.     if (v->s.pict_type == AV_PICTURE_TYPE_BI) {

  1285.         v->s.pict_type = AV_PICTURE_TYPE_B;

  1286.         v->bi_type = 1;

  1287.     }

  1288.     return 0;

  1289. }

  1290. 

  1291. static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {

  1292. {

  1293. { 0x0001,  2}, { 0x0005,  3}, { 0x000D,  4}, { 0x0012,  5}, { 0x000E,  6}, { 0x0015,  7},

  1294. { 0x0013,  8}, { 0x003F,  8}, { 0x004B,  9}, { 0x011F,  9}, { 0x00B8, 10}, { 0x03E3, 10},

  1295. { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},

  1296. { 0x3EAE, 14}, { 0x0000,  4}, { 0x0010,  5}, { 0x0008,  7}, { 0x0020,  8}, { 0x0029,  9},

  1297. { 0x01F4,  9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},

  1298. { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003,  5}, { 0x0011,  7},

  1299. { 0x00C4,  8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},

  1300. { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013,  5}, { 0x0078,  7},

  1301. { 0x0069,  9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},

  1302. { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C,  6}, { 0x0024,  9}, { 0x0094, 11},

  1303. { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D,  6}, { 0x0053,  9}, { 0x01A0, 11},

  1304. { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013,  7}, { 0x007C,  9}, { 0x07C1, 11}, { 0x04AC, 14},

  1305. { 0x001B,  7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079,  7}, { 0x03E1, 10},

  1306. { 0x02D4, 13}, { 0x2306, 14}, { 0x0021,  8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},

  1307. { 0x0035,  8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5,  8}, { 0x0174, 11}, { 0x0785, 13},

  1308. { 0x0048,  9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C,  9}, { 0x00FA, 10}, { 0x07D6, 11},

  1309. { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},

  1310. { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},

  1311. { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},

  1312. { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E,  4},

  1313. { 0x0045,  7}, { 0x01F3,  9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019,  5},

  1314. { 0x0028,  9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030,  6}, { 0x00A2, 10},

  1315. { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F,  6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},

  1316. { 0x0044,  7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063,  7}, { 0x03C3, 12}, { 0x0015,  8},

  1317. { 0x08F6, 12}, { 0x0017,  8}, { 0x0498, 13}, { 0x002C,  8}, { 0x07B2, 13}, { 0x002F,  8},

  1318. { 0x1F54, 13}, { 0x008D,  8}, { 0x07BD, 13}, { 0x008E,  8}, { 0x1182, 13}, { 0x00FB,  8},

  1319. { 0x050B, 13}, { 0x002D,  8}, { 0x07C0, 11}, { 0x0079,  9}, { 0x1F5F, 13}, { 0x007A,  9},

  1320. { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},

  1321. { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},

  1322. { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},

  1323. { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A,  9}

  1324. },

  1325. {

  1326. { 0x0000,  3}, { 0x0003,  4}, { 0x000B,  5}, { 0x0014,  6}, { 0x003F,  6}, { 0x005D,  7},

  1327. { 0x00A2,  8}, { 0x00AC,  9}, { 0x016E,  9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},

  1328. { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},

  1329. { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004,  4},

  1330. { 0x001E,  5}, { 0x0042,  7}, { 0x00B6,  8}, { 0x0173,  9}, { 0x0395, 10}, { 0x072E, 11},

  1331. { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005,  5}, { 0x0040,  7},

  1332. { 0x0049,  9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},

  1333. { 0x0018,  5}, { 0x0025,  8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},

  1334. { 0x139C, 15}, { 0x0029,  6}, { 0x004F,  9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},

  1335. { 0x0038,  6}, { 0x010E,  9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058,  7},

  1336. { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023,  8}, { 0x02E3, 10}, { 0x04E5, 13},

  1337. { 0x2E40, 14}, { 0x00A1,  8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083,  8}, { 0x013A, 11},

  1338. { 0x1721, 13}, { 0x0044,  9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},

  1339. { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},

  1340. { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},

  1341. { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},

  1342. { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003,  3}, { 0x002A,  6}, { 0x00E4,  8},

  1343. { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},

  1344. { 0x0009,  4}, { 0x0054,  8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D,  4},

  1345. { 0x00AD,  9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011,  5}, { 0x016B,  9}, { 0x0B7F, 12},

  1346. { 0x51A4, 15}, { 0x0019,  5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D,  5}, { 0x0394, 10},

  1347. { 0x28D3, 14}, { 0x002B,  6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F,  6}, { 0x0247, 12},

  1348. { 0x0010,  7}, { 0x0A35, 12}, { 0x003E,  6}, { 0x0B7A, 12}, { 0x0059,  7}, { 0x105E, 13},

  1349. { 0x0026,  8}, { 0x09CF, 14}, { 0x0055,  8}, { 0x1CB5, 13}, { 0x0057,  8}, { 0x0E5B, 12},

  1350. { 0x00A0,  8}, { 0x1468, 13}, { 0x0170,  9}, { 0x0090, 10}, { 0x01CE,  9}, { 0x021A, 10},

  1351. { 0x0218, 10}, { 0x0168,  9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},

  1352. { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},

  1353. { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},

  1354. { 0x0169,  9}

  1355. },

  1356. {

  1357. { 0x0001,  2}, { 0x0006,  3}, { 0x000F,  4}, { 0x0016,  5}, { 0x0020,  6}, { 0x0018,  7},

  1358. { 0x0008,  8}, { 0x009A,  8}, { 0x0056,  9}, { 0x013E,  9}, { 0x00F0, 10}, { 0x03A5, 10},

  1359. { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001,  4}, { 0x0011,  5},

  1360. { 0x0002,  7}, { 0x000B,  8}, { 0x0012,  9}, { 0x01D6,  9}, { 0x027E, 10}, { 0x0191, 11},

  1361. { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004,  5}, { 0x0014,  7}, { 0x009E,  8},

  1362. { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017,  5},

  1363. { 0x004E,  7}, { 0x005E,  9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},

  1364. { 0x000E,  6}, { 0x00E1,  8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B,  6},

  1365. { 0x001C,  9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006,  7}, { 0x007A,  9}, { 0x0190, 11},

  1366. { 0x0137, 13}, { 0x001B,  7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071,  7}, { 0x00D7, 10},

  1367. { 0x09BF, 12}, { 0x0007,  8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034,  8}, { 0x0265, 10},

  1368. { 0x009F, 12}, { 0x00E0,  8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015,  9}, { 0x017D, 11},

  1369. { 0x0EBB, 12}, { 0x0014,  9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},

  1370. { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},

  1371. { 0x013A, 13}, { 0x000A,  4}, { 0x0042,  7}, { 0x01D3,  9}, { 0x04DD, 11}, { 0x0012,  5},

  1372. { 0x00E8,  8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039,  6}, { 0x0264, 10}, { 0x0EBA, 12},

  1373. { 0x0000,  7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F,  7}, { 0x04DE, 11}, { 0x0043,  7},

  1374. { 0x04DC, 11}, { 0x0003,  8}, { 0x03CB, 12}, { 0x0006,  8}, { 0x099E, 12}, { 0x002A,  8},

  1375. { 0x05F1, 13}, { 0x000F,  8}, { 0x09FE, 12}, { 0x0033,  8}, { 0x09FF, 12}, { 0x0098,  8},

  1376. { 0x099F, 12}, { 0x00EA,  8}, { 0x013C, 13}, { 0x002E,  8}, { 0x0192, 11}, { 0x0136,  9},

  1377. { 0x006A,  9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},

  1378. { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},

  1379. { 0x0016,  7}

  1380. },

  1381. {

  1382. { 0x0004,  3}, { 0x0014,  5}, { 0x0017,  7}, { 0x007F,  8}, { 0x0154,  9}, { 0x01F2, 10},

  1383. { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},

  1384. { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B,  4}, { 0x0037,  7}, { 0x0062,  9}, { 0x0007, 11},

  1385. { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007,  5},

  1386. { 0x006D,  8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002,  6}, { 0x0061,  9},

  1387. { 0x0055, 12}, { 0x01DF, 14}, { 0x001A,  6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},

  1388. { 0x001E,  6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006,  7}, { 0x0004, 11},

  1389. { 0x02F8, 13}, { 0x0019,  7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057,  7}, { 0x0182, 11},

  1390. { 0x2AA2, 14}, { 0x0004,  8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D,  8}, { 0x0164, 12},

  1391. { 0x076D, 15}, { 0x0002,  9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD,  8}, { 0x0060, 12},

  1392. { 0x0C67, 14}, { 0x001C,  9}, { 0x00EE, 13}, { 0x0003,  9}, { 0x02CF, 13}, { 0x00D9,  9},

  1393. { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},

  1394. { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},

  1395. { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003,  2}, { 0x0054,  7}, { 0x02AB, 10},

  1396. { 0x0016, 13}, { 0x05F7, 14}, { 0x0005,  4}, { 0x00F8,  9}, { 0x0AA9, 12}, { 0x005F, 15},

  1397. { 0x0004,  4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004,  5}, { 0x0077, 11}, { 0x076C, 15},

  1398. { 0x000E,  5}, { 0x000A, 12}, { 0x000C,  5}, { 0x0562, 11}, { 0x0004,  6}, { 0x031C, 12},

  1399. { 0x0006,  6}, { 0x00C8, 13}, { 0x000D,  6}, { 0x01DA, 13}, { 0x0007,  6}, { 0x00C9, 13},

  1400. { 0x0001,  7}, { 0x002E, 14}, { 0x0014,  7}, { 0x1596, 13}, { 0x000A,  7}, { 0x0AC2, 12},

  1401. { 0x0016,  7}, { 0x015B, 14}, { 0x0015,  7}, { 0x015A, 14}, { 0x000F,  8}, { 0x005E, 15},

  1402. { 0x007E,  8}, { 0x00AB,  8}, { 0x002D,  9}, { 0x00D8,  9}, { 0x000B,  9}, { 0x0014, 10},

  1403. { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E,  9},

  1404. { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},

  1405. { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},

  1406. { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D,  9}

  1407. },

  1408. {

  1409. { 0x0002,  2}, { 0x0006,  3}, { 0x000F,  4}, { 0x000D,  5}, { 0x000C,  5}, { 0x0015,  6},

  1410. { 0x0013,  6}, { 0x0012,  6}, { 0x0017,  7}, { 0x001F,  8}, { 0x001E,  8}, { 0x001D,  8},

  1411. { 0x0025,  9}, { 0x0024,  9}, { 0x0023,  9}, { 0x0021,  9}, { 0x0021, 10}, { 0x0020, 10},

  1412. { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},

  1413. { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E,  4}, { 0x0014,  6}, { 0x0016,  7},

  1414. { 0x001C,  8}, { 0x0020,  9}, { 0x001F,  9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},

  1415. { 0x0055, 12}, { 0x000B,  5}, { 0x0015,  7}, { 0x001E,  9}, { 0x000C, 10}, { 0x0056, 12},

  1416. { 0x0011,  6}, { 0x001B,  8}, { 0x001D,  9}, { 0x000B, 10}, { 0x0010,  6}, { 0x0022,  9},

  1417. { 0x000A, 10}, { 0x000D,  6}, { 0x001C,  9}, { 0x0008, 10}, { 0x0012,  7}, { 0x001B,  9},

  1418. { 0x0054, 12}, { 0x0014,  7}, { 0x001A,  9}, { 0x0057, 12}, { 0x0019,  8}, { 0x0009, 10},

  1419. { 0x0018,  8}, { 0x0023, 11}, { 0x0017,  8}, { 0x0019,  9}, { 0x0018,  9}, { 0x0007, 10},

  1420. { 0x0058, 12}, { 0x0007,  4}, { 0x000C,  6}, { 0x0016,  8}, { 0x0017,  9}, { 0x0006, 10},

  1421. { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F,  6}, { 0x0016,  9}, { 0x0005, 10},

  1422. { 0x000E,  6}, { 0x0004, 10}, { 0x0011,  7}, { 0x0024, 11}, { 0x0010,  7}, { 0x0025, 11},

  1423. { 0x0013,  7}, { 0x005A, 12}, { 0x0015,  8}, { 0x005B, 12}, { 0x0014,  8}, { 0x0013,  8},

  1424. { 0x001A,  8}, { 0x0015,  9}, { 0x0014,  9}, { 0x0013,  9}, { 0x0012,  9}, { 0x0011,  9},

  1425. { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},

  1426. { 0x0003,  7}

  1427. },

  1428. {

  1429. { 0x0002,  2}, { 0x000F,  4}, { 0x0015,  6}, { 0x0017,  7}, { 0x001F,  8}, { 0x0025,  9},

  1430. { 0x0024,  9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},

  1431. { 0x0006,  3}, { 0x0014,  6}, { 0x001E,  8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},

  1432. { 0x000E,  4}, { 0x001D,  8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D,  5}, { 0x0023,  9},

  1433. { 0x000D, 10}, { 0x000C,  5}, { 0x0022,  9}, { 0x0052, 12}, { 0x000B,  5}, { 0x000C, 10},

  1434. { 0x0053, 12}, { 0x0013,  6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012,  6}, { 0x000A, 10},

  1435. { 0x0011,  6}, { 0x0009, 10}, { 0x0010,  6}, { 0x0008, 10}, { 0x0016,  7}, { 0x0055, 12},

  1436. { 0x0015,  7}, { 0x0014,  7}, { 0x001C,  8}, { 0x001B,  8}, { 0x0021,  9}, { 0x0020,  9},

  1437. { 0x001F,  9}, { 0x001E,  9}, { 0x001D,  9}, { 0x001C,  9}, { 0x001B,  9}, { 0x001A,  9},

  1438. { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007,  4}, { 0x0019,  9},

  1439. { 0x0005, 11}, { 0x000F,  6}, { 0x0004, 11}, { 0x000E,  6}, { 0x000D,  6}, { 0x000C,  6},

  1440. { 0x0013,  7}, { 0x0012,  7}, { 0x0011,  7}, { 0x0010,  7}, { 0x001A,  8}, { 0x0019,  8},

  1441. { 0x0018,  8}, { 0x0017,  8}, { 0x0016,  8}, { 0x0015,  8}, { 0x0014,  8}, { 0x0013,  8},

  1442. { 0x0018,  9}, { 0x0017,  9}, { 0x0016,  9}, { 0x0015,  9}, { 0x0014,  9}, { 0x0013,  9},

  1443. { 0x0012,  9}, { 0x0011,  9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},

  1444. { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},

  1445. { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},

  1446. { 0x0003,  7}

  1447. },

  1448. {

  1449. { 0x0000,  2}, { 0x0003,  3}, { 0x000D,  4}, { 0x0005,  4}, { 0x001C,  5}, { 0x0016,  5},

  1450. { 0x003F,  6}, { 0x003A,  6}, { 0x002E,  6}, { 0x0022,  6}, { 0x007B,  7}, { 0x0067,  7},

  1451. { 0x005F,  7}, { 0x0047,  7}, { 0x0026,  7}, { 0x00EF,  8}, { 0x00CD,  8}, { 0x00C1,  8},

  1452. { 0x00A9,  8}, { 0x004F,  8}, { 0x01F2,  9}, { 0x01DD,  9}, { 0x0199,  9}, { 0x0185,  9},

  1453. { 0x015D,  9}, { 0x011B,  9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},

  1454. { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},

  1455. { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},

  1456. { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},

  1457. { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},

  1458. { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009,  4}, { 0x0010,  5}, { 0x0029,  6}, { 0x0062,  7},

  1459. { 0x00F3,  8}, { 0x00AD,  8}, { 0x01E5,  9}, { 0x0179,  9}, { 0x009C,  9}, { 0x03B1, 10},

  1460. { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},

  1461. { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008,  5}, { 0x0063,  7},

  1462. { 0x00AF,  8}, { 0x017B,  9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},

  1463. { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028,  6}, { 0x00C3,  8}, { 0x0151,  9}, { 0x02A1, 10},

  1464. { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065,  7}, { 0x01DA,  9}, { 0x02AF, 10},

  1465. { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025,  7}, { 0x0118,  9}, { 0x0646, 11},

  1466. { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9,  8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},

  1467. { 0x0048,  8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180,  9}, { 0x0465, 11}, { 0x1905, 13},

  1468. { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},

  1469. { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},

  1470. { 0x0078,  7}, { 0x0155,  9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA,  8}, { 0x07DC, 11},

  1471. { 0x1907, 13}, { 0x00AC,  8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6,  9}, { 0x0AE2, 12},

  1472. { 0x01DC,  9}, { 0x04ED, 12}, { 0x0184,  9}, { 0x1904, 13}, { 0x0156,  9}, { 0x09D9, 13},

  1473. { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},

  1474. { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},

  1475. { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},

  1476. { 0x007A,  7}

  1477. },

  1478. {

  1479. { 0x0002,  2}, { 0x0000,  3}, { 0x001E,  5}, { 0x0004,  5}, { 0x0012,  6}, { 0x0070,  7},

  1480. { 0x001A,  7}, { 0x005F,  8}, { 0x0047,  8}, { 0x01D3,  9}, { 0x00B5,  9}, { 0x0057,  9},

  1481. { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},

  1482. { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},

  1483. { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},

  1484. { 0x08C0, 13}, { 0x055D, 13}, { 0x0003,  3}, { 0x000A,  5}, { 0x0077,  7}, { 0x00E5,  8},

  1485. { 0x01D9,  9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},

  1486. { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C,  4}, { 0x007D,  7}, { 0x0044,  8},

  1487. { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B,  5},

  1488. { 0x00E2,  8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007,  5},

  1489. { 0x01D8,  9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035,  6}, { 0x03E1, 10},

  1490. { 0x059C, 12}, { 0x38C3, 14}, { 0x000C,  6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},

  1491. { 0x0068,  7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020,  7}, { 0x0F90, 12}, { 0x7CF6, 15},

  1492. { 0x00E8,  8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045,  8}, { 0x0B3A, 13}, { 0x01F1,  9},

  1493. { 0x3B46, 14}, { 0x01A7,  9}, { 0x1676, 14}, { 0x0056,  9}, { 0x692A, 15}, { 0x038D, 10},

  1494. { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},

  1495. { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},

  1496. { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},

  1497. { 0x055F, 13}, { 0x003F,  6}, { 0x006D,  9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013,  6},

  1498. { 0x0119, 10}, { 0x0B66, 13}, { 0x000B,  6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075,  7},

  1499. { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E,  7}, { 0x1F22, 13}, { 0x0021,  7}, { 0x054F, 13},

  1500. { 0x0014,  7}, { 0x3A44, 14}, { 0x00E4,  8}, { 0x7CF7, 15}, { 0x005E,  8}, { 0x7185, 15},

  1501. { 0x0037,  8}, { 0x2C73, 15}, { 0x01DB,  9}, { 0x59DD, 16}, { 0x01C7,  9}, { 0x692B, 15},

  1502. { 0x01A6,  9}, { 0x58E5, 16}, { 0x00B4,  9}, { 0x1F3D0, 17}, { 0x00B0,  9}, { 0xB1C9, 17},

  1503. { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},

  1504. { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},

  1505. { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},

  1506. { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},

  1507. { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},

  1508. { 0x0073,  7}

  1509. }

  1510. };

  1511. 

  1512. static const uint16_t vlc_offs[] = {

  1513.         0,   520,   552,   616,  1128,  1160,  1224,  1740,  1772,  1836,  1900,  2436,

  1514.      2986,  3050,  3610,  4154,  4218,  4746,  5326,  5390,  5902,  6554,  7658,  8342,

  1515.      9304,  9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,

  1516.     20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,

  1517.     27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,

  1518.     29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,

  1519.     31714, 31746, 31778, 32306, 32340, 32372

  1520. };

  1521. 

  1522. /**

  1523.  * Init VC-1 specific tables and VC1Context members

  1524.  * @param v The VC1Context to initialize

  1525.  * @return Status

  1526.  */

  1527. int ff_vc1_init_common(VC1Context *v)

  1528. {

  1529.     static int done = 0;

  1530.     int i = 0;

  1531.     static VLC_TYPE vlc_table[32372][2];

  1532. 

  1533.     v->hrd_rate = v->hrd_buffer = NULL;

  1534. 

  1535.     /* VLC tables */

  1536.     if (!done) {

  1537.         INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,

  1538.                         ff_vc1_bfraction_bits, 1, 1,

  1539.                         ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);

  1540.         INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,

  1541.                         ff_vc1_norm2_bits, 1, 1,

  1542.                         ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);

  1543.         INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,

  1544.                         ff_vc1_norm6_bits, 1, 1,

  1545.                         ff_vc1_norm6_codes, 2, 2, 556);

  1546.         INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,

  1547.                         ff_vc1_imode_bits, 1, 1,

  1548.                         ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);

  1549.         for (i = 0; i < 3; i++) {

  1550.             ff_vc1_ttmb_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 0]];

  1551.             ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];

  1552.             init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,

  1553.                      ff_vc1_ttmb_bits[i], 1, 1,

  1554.                      ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1555.             ff_vc1_ttblk_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 1]];

  1556.             ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];

  1557.             init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,

  1558.                      ff_vc1_ttblk_bits[i], 1, 1,

  1559.                      ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1560.             ff_vc1_subblkpat_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 2]];

  1561.             ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];

  1562.             init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,

  1563.                      ff_vc1_subblkpat_bits[i], 1, 1,

  1564.                      ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1565.         }

  1566.         for (i = 0; i < 4; i++) {

  1567.             ff_vc1_4mv_block_pattern_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 9]];

  1568.             ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];

  1569.             init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,

  1570.                      ff_vc1_4mv_block_pattern_bits[i], 1, 1,

  1571.                      ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1572.             ff_vc1_cbpcy_p_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 10]];

  1573.             ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];

  1574.             init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,

  1575.                      ff_vc1_cbpcy_p_bits[i], 1, 1,

  1576.                      ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1577.             ff_vc1_mv_diff_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 11]];

  1578.             ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];

  1579.             init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,

  1580.                      ff_vc1_mv_diff_bits[i], 1, 1,

  1581.                      ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1582.         }

  1583.         for (i = 0; i < 8; i++) {

  1584.             ff_vc1_ac_coeff_table[i].table           = &vlc_table[vlc_offs[i * 2 + 21]];

  1585.             ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];

  1586.             init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],

  1587.                      &vc1_ac_tables[i][0][1], 8, 4,

  1588.                      &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);

  1589.             /* initialize interlaced MVDATA tables (2-Ref) */

  1590.             ff_vc1_2ref_mvdata_vlc[i].table           = &vlc_table[vlc_offs[i * 2 + 22]];

  1591.             ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];

  1592.             init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,

  1593.                      ff_vc1_2ref_mvdata_bits[i], 1, 1,

  1594.                      ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);

  1595.         }

  1596.         for (i = 0; i < 4; i++) {

  1597.             /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */

  1598.             ff_vc1_intfr_4mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 37]];

  1599.             ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];

  1600.             init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,

  1601.                      ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,

  1602.                      ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1603.             /* initialize NON-4MV MBMODE VLC tables for the same */

  1604.             ff_vc1_intfr_non4mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 38]];

  1605.             ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];

  1606.             init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,

  1607.                      ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,

  1608.                      ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1609.             /* initialize interlaced MVDATA tables (1-Ref) */

  1610.             ff_vc1_1ref_mvdata_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 39]];

  1611.             ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];

  1612.             init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,

  1613.                      ff_vc1_1ref_mvdata_bits[i], 1, 1,

  1614.                      ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);

  1615.         }

  1616.         for (i = 0; i < 4; i++) {

  1617.             /* Initialize 2MV Block pattern VLC tables */

  1618.             ff_vc1_2mv_block_pattern_vlc[i].table           = &vlc_table[vlc_offs[i + 49]];

  1619.             ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];

  1620.             init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,

  1621.                      ff_vc1_2mv_block_pattern_bits[i], 1, 1,

  1622.                      ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1623.         }

  1624.         for (i = 0; i < 8; i++) {

  1625.             /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */

  1626.             ff_vc1_icbpcy_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 53]];

  1627.             ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];

  1628.             init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,

  1629.                      ff_vc1_icbpcy_p_bits[i], 1, 1,

  1630.                      ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1631.             /* Initialize interlaced field picture MBMODE VLC tables */

  1632.             ff_vc1_if_mmv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 54]];

  1633.             ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];

  1634.             init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,

  1635.                      ff_vc1_if_mmv_mbmode_bits[i], 1, 1,

  1636.                      ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1637.             ff_vc1_if_1mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 55]];

  1638.             ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];

  1639.             init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,

  1640.                      ff_vc1_if_1mv_mbmode_bits[i], 1, 1,

  1641.                      ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1642.         }

  1643.         done = 1;

  1644.     }

  1645. 

  1646.     /* Other defaults */

  1647.     v->pq      = -1;

  1648.     v->mvrange = 0; /* 7.1.1.18, p80 */

  1649. 

  1650.     return 0;

  1651. }