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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 Libav.

  8.  *

  9.  * Libav 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.  * Libav 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 Libav; 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 "avcodec.h"

  32. #include "mpegvideo.h"

  33. #include "vc1.h"

  34. #include "vc1data.h"

  35. #include "msmpeg4data.h"

  36. #include "unary.h"

  37. #include "simple_idct.h"

  38. 

  39. #undef NDEBUG

  40. #include <assert.h>

  41. 

  42. /***********************************************************************/

  43. /**

  44.  * @name VC-1 Bitplane decoding

  45.  * @see 8.7, p56

  46.  * @{

  47.  */

  48. 

  49. /**

  50.  * Imode types

  51.  * @{

  52.  */

  53. enum Imode {

  54.     IMODE_RAW,

  55.     IMODE_NORM2,

  56.     IMODE_DIFF2,

  57.     IMODE_NORM6,

  58.     IMODE_DIFF6,

  59.     IMODE_ROWSKIP,

  60.     IMODE_COLSKIP

  61. };

  62. /** @} */ //imode defines

  63. 

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

  65.  * @param plane Buffer to store decoded bits

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

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

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

  69.  */

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

  71.                            GetBitContext *gb)

  72. {

  73.     int x, y;

  74. 

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

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

  77.             memset(plane, 0, width);

  78.         else

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

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

  81.         plane += stride;

  82.     }

  83. }

  84. 

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

  86.  * @param plane Buffer to store decoded bits

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

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

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

  90.  * @todo FIXME: Optimize

  91.  */

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

  93.                            GetBitContext *gb)

  94. {

  95.     int x, y;

  96. 

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

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

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

  100.                 plane[y*stride] = 0;

  101.         else

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

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

  104.         plane ++;

  105.     }

  106. }

  107. 

  108. /** Decode a bitplane's bits

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

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

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

  112.  * @return Status

  113.  * @todo FIXME: Optimize

  114.  */

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

  116. {

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

  118. 

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

  120.     uint8_t invert, *planep = data;

  121.     int width, height, stride;

  122. 

  123.     width  = v->s.mb_width;

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

  125.     stride = v->s.mb_stride;

  126.     invert = get_bits1(gb);

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

  128. 

  129.     *raw_flag = 0;

  130.     switch (imode) {

  131.     case IMODE_RAW:

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

  133.         *raw_flag = 1; //invert ignored

  134.         return invert;

  135.     case IMODE_DIFF2:

  136.     case IMODE_NORM2:

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

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

  139.             offset    = 1;

  140.         }

  141.         else

  142.             offset = 0;

  143.         // decode bitplane as one long line

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

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

  146.             *planep++ = code & 1;

  147.             offset++;

  148.             if (offset == width) {

  149.                 offset  = 0;

  150.                 planep += stride - width;

  151.             }

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

  153.             offset++;

  154.             if (offset == width) {

  155.                 offset  = 0;

  156.                 planep += stride - width;

  157.             }

  158.         }

  159.         break;

  160.     case IMODE_DIFF6:

  161.     case IMODE_NORM6:

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

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

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

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

  166.                     if (code < 0) {

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

  168.                         return -1;

  169.                     }

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

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

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

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

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

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

  176.                 }

  177.                 planep += stride * 3;

  178.             }

  179.             if (width & 1)

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

  181.         } else { // 3x2

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

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

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

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

  186.                     if (code < 0) {

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

  188.                         return -1;

  189.                     }

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

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

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

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

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

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

  196.                 }

  197.                 planep += stride * 2;

  198.             }

  199.             x = width % 3;

  200.             if (x)

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

  202.             if (height & 1)

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

  204.         }

  205.         break;

  206.     case IMODE_ROWSKIP:

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

  208.         break;

  209.     case IMODE_COLSKIP:

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

  211.         break;

  212.     default:

  213.         break;

  214.     }

  215. 

  216.     /* Applying diff operator */

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

  218.         planep = data;

  219.         planep[0] ^= invert;

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

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

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

  223.             planep += stride;

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

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

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

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

  228.             }

  229.         }

  230.     } else if (invert) {

  231.         planep = data;

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

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

  234.     }

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

  236. }

  237. 

  238. /** @} */ //Bitplane group

  239. 

  240. /***********************************************************************/

  241. /** VOP Dquant decoding

  242.  * @param v VC-1 Context

  243.  */

  244. static int vop_dquant_decoding(VC1Context *v)

  245. {

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

  247.     int pqdiff;

  248. 

  249.     //variable size

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

  251.         pqdiff = get_bits(gb, 3);

  252.         if (pqdiff == 7)

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

  254.         else

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

  256.     } else {

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

  258.         if (v->dquantfrm) {

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

  260.             switch (v->dqprofile) {

  261.             case DQPROFILE_SINGLE_EDGE:

  262.             case DQPROFILE_DOUBLE_EDGES:

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

  264.                 break;

  265.             case DQPROFILE_ALL_MBS:

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

  267.                 if (!v->dqbilevel)

  268.                     v->halfpq = 0;

  269.             default:

  270.                 break; //Forbidden ?

  271.             }

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

  273.                 pqdiff = get_bits(gb, 3);

  274.                 if (pqdiff == 7)

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

  276.                 else

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

  278.             }

  279.         }

  280.     }

  281.     return 0;

  282. }

  283. 

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

  285. 

  286. /**

  287.  * Decode Simple/Main Profiles sequence header

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

  289.  * @param avctx Codec context

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

  291.  * @return Status

  292.  */

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

  294. {

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

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

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

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

  299.     }

  300. 

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

  302.         v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;

  303.         v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;

  304.         return decode_sequence_header_adv(v, gb);

  305.     } else {

  306.         v->zz_8x4 = ff_wmv2_scantableA;

  307.         v->zz_4x8 = ff_wmv2_scantableB;

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

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

  310.         if (v->res_y411) {

  311.             av_log(avctx, AV_LOG_ERROR,

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

  313.             return -1;

  314.         }

  315.     }

  316. 

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

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

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

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

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

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

  323.         av_log(avctx, AV_LOG_ERROR,

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

  325.     }

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

  327.         v->s.loop_filter = 0;

  328. 

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

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

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

  332.     if (!v->res_fasttx) {

  333.         v->vc1dsp.vc1_inv_trans_8x8    = ff_simple_idct_8;

  334.         v->vc1dsp.vc1_inv_trans_8x4    = ff_simple_idct84_add;

  335.         v->vc1dsp.vc1_inv_trans_4x8    = ff_simple_idct48_add;

  336.         v->vc1dsp.vc1_inv_trans_4x4    = ff_simple_idct44_add;

  337.         v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;

  338.         v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;

  339.         v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;

  340.         v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;

  341.     }

  342. 

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

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

  345.         av_log(avctx, AV_LOG_ERROR,

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

  347.         return -1;

  348.     }

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

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

  351.     {

  352.         av_log(avctx, AV_LOG_ERROR,

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

  354.         return -1;

  355.     }

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

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

  358. 

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

  360.     if (v->res_transtab)

  361.     {

  362.         av_log(avctx, AV_LOG_ERROR,

  363.                "1 for reserved RES_TRANSTAB is forbidden\n");

  364.         return -1;

  365.     }

  366. 

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

  368. 

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

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

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

  372.         av_log(avctx, AV_LOG_INFO,

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

  374.     }

  375. 

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

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

  378. 

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

  380. 

  381.     if (v->res_sprite) {

  382.         v->s.avctx->width  = v->s.avctx->coded_width  = get_bits(gb, 11);

  383.         v->s.avctx->height = v->s.avctx->coded_height = get_bits(gb, 11);

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

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

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

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

  388.             return -1;

  389.         }

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

  391.         v->res_rtm_flag = 0;

  392.     } else {

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

  394.     }

  395.     if (!v->res_rtm_flag) {

  396.         av_log(avctx, AV_LOG_ERROR,

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

  398.         //return -1;

  399.     }

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

  401.     if (!v->res_fasttx)

  402.         skip_bits(gb, 16);

  403.     av_log(avctx, AV_LOG_DEBUG,

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

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

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

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

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

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

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

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

  412.     return 0;

  413. }

  414. 

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

  416. {

  417.     v->res_rtm_flag = 1;

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

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

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

  421.     }

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

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

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

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

  426.         return -1;

  427.     }

  428. 

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

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

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

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

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

  434. 

  435.     v->s.avctx->coded_width  = (get_bits(gb, 12) + 1) << 1;

  436.     v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;

  437.     v->s.avctx->width        = v->s.avctx->coded_width;

  438.     v->s.avctx->height       = v->s.avctx->coded_height;

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

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

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

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

  443.     skip_bits1(gb); // reserved

  444. 

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

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

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

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

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

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

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

  452. 

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

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

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

  456.         return -1;

  457.     }

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

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

  460.         int w, h, ar = 0;

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

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

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

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

  465.         if (get_bits1(gb))

  466.             ar = get_bits(gb, 4);

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

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

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

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

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

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

  473.         } else {

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

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

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

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

  478.                       1 << 30);

  479.         }

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

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

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

  483. 

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

  485.             if (get_bits1(gb)) {

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

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

  488.             } else {

  489.                 int nr, dr;

  490.                 nr = get_bits(gb, 8);

  491.                 dr = get_bits(gb, 4);

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

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

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

  495.                 }

  496.             }

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

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

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

  500.             }

  501.         }

  502. 

  503.         if (get_bits1(gb)) {

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

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

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

  507.         }

  508.     }

  509. 

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

  511.     if (v->hrd_param_flag) {

  512.         int i;

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

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

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

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

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

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

  519.         }

  520.     }

  521.     return 0;

  522. }

  523. 

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

  525. {

  526.     int i;

  527. 

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

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

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

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

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

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

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

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

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

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

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

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

  540. 

  541.     if (v->hrd_param_flag) {

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

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

  544.         }

  545.     }

  546. 

  547.     if (get_bits1(gb)) {

  548.         avctx->width  = avctx->coded_width  = (get_bits(gb, 12) + 1) << 1;

  549.         avctx->height = avctx->coded_height = (get_bits(gb, 12) + 1) << 1;

  550.     }

  551.     if (v->extended_mv)

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

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

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

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

  556.     }

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

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

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

  560.     }

  561. 

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

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

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

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

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

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

  568. 

  569.     return 0;

  570. }

  571. 

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

  573. {

  574.     int pqindex, lowquant, status;

  575. 

  576.     if (v->finterpflag)

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

  578.     if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)

  579.         v->respic   =

  580.         v->rangered =

  581.         v->multires = get_bits(gb, 2) == 1;

  582.     else

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

  584.     v->rangeredfrm = 0;

  585.     if (v->rangered)

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

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

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

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

  590.             if (get_bits1(gb))

  591.                 v->s.pict_type = AV_PICTURE_TYPE_I;

  592.             else

  593.                 v->s.pict_type = AV_PICTURE_TYPE_B;

  594.         } else

  595.             v->s.pict_type = AV_PICTURE_TYPE_P;

  596.     } else

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

  598. 

  599.     v->bi_type = 0;

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

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

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

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

  604.             v->s.pict_type = AV_PICTURE_TYPE_BI;

  605.         }

  606.     }

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

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

  609. 

  610.     if (v->parse_only)

  611.         return 0;

  612. 

  613.     /* calculate RND */

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

  615.         v->rnd = 1;

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

  617.         v->rnd ^= 1;

  618. 

  619.     /* Quantizer stuff */

  620.     pqindex = get_bits(gb, 5);

  621.     if (!pqindex)

  622.         return -1;

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

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

  625.     else

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

  627. 

  628.     v->pquantizer = 1;

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

  630.         v->pquantizer = pqindex < 9;

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

  632.         v->pquantizer = 0;

  633.     v->pqindex = pqindex;

  634.     if (pqindex < 9)

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

  636.     else

  637.         v->halfpq = 0;

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

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

  640.     v->dquantfrm = 0;

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

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

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

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

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

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

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

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

  649. 

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

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

  652.     } else

  653.         v->x8_type = 0;

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

  655.             (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),

  656.             pqindex, v->pq, v->halfpq, v->rangeredfrm);

  657. 

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

  659.         v->use_ic = 0;

  660. 

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

  662.     case AV_PICTURE_TYPE_P:

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

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

  665.         else                 v->tt_index = 2;

  666. 

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

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

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

  670.             int scale, shift, i;

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

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

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

  674.             v->use_ic   = 1;

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

  676.             if (!v->lumscale) {

  677.                 scale = -64;

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

  679.                 if (v->lumshift > 31)

  680.                     shift += 128 << 6;

  681.             } else {

  682.                 scale = v->lumscale + 32;

  683.                 if (v->lumshift > 31)

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

  685.                 else

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

  687.             }

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

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

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

  691.             }

  692.         }

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

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

  695.             v->s.quarter_sample = 0;

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

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

  698.                 v->s.quarter_sample = 0;

  699.             else

  700.                 v->s.quarter_sample = 1;

  701.         } else

  702.             v->s.quarter_sample = 1;

  703.         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));

  704. 

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

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

  707.             v->mv_mode   == MV_PMODE_MIXED_MV) {

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

  709.             if (status < 0)

  710.                 return -1;

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

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

  713.         } else {

  714.             v->mv_type_is_raw = 0;

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

  716.         }

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

  718.         if (status < 0)

  719.             return -1;

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

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

  722. 

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

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

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

  726. 

  727.         if (v->dquant) {

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

  729.             vop_dquant_decoding(v);

  730.         }

  731. 

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

  733.         if (v->vstransform) {

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

  735.             if (v->ttmbf) {

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

  737.             }

  738.         } else {

  739.             v->ttmbf = 1;

  740.             v->ttfrm = TT_8X8;

  741.         }

  742.         break;

  743.     case AV_PICTURE_TYPE_B:

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

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

  746.         else                 v->tt_index = 2;

  747. 

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

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

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

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

  752. 

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

  754.         if (status < 0)

  755.             return -1;

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

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

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

  759.         if (status < 0)

  760.             return -1;

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

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

  763. 

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

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

  766. 

  767.         if (v->dquant) {

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

  769.             vop_dquant_decoding(v);

  770.         }

  771. 

  772.         v->ttfrm = 0;

  773.         if (v->vstransform) {

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

  775.             if (v->ttmbf) {

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

  777.             }

  778.         } else {

  779.             v->ttmbf = 1;

  780.             v->ttfrm = TT_8X8;

  781.         }

  782.         break;

  783.     }

  784. 

  785.     if (!v->x8_type) {

  786.         /* AC Syntax */

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

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

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

  790.         }

  791.         /* DC Syntax */

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

  793.     }

  794. 

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

  796.         v->s.pict_type = AV_PICTURE_TYPE_B;

  797.         v->bi_type     = 1;

  798.     }

  799.     return 0;

  800. }

  801. 

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

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

  804.     if (!lumscale) {                                \

  805.         scale = -64;                                \

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

  807.         if (lumshift > 31)                          \

  808.             shift += 128 << 6;                      \

  809.     } else {                                        \

  810.         scale = lumscale + 32;                      \

  811.         if (lumshift > 31)                          \

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

  813.         else                                        \

  814.             shift = lumshift << 6;                  \

  815.     }                                               \

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

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

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

  819.     }

  820. 

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

  822. {

  823.     int pqindex, lowquant;

  824.     int status;

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

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

  827. 

  828.     v->p_frame_skipped = 0;

  829.     if (v->second_field) {

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

  831.         if (v->fptype & 4)

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

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

  834.         if (!v->pic_header_flag)

  835.             goto parse_common_info;

  836.     }

  837. 

  838.     v->field_mode = 0;

  839.     if (v->interlace) {

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

  841.         if (v->fcm) {

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

  843.                 v->field_mode = 1;

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

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

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

  847.         }

  848.     } else {

  849.         v->fcm = PROGRESSIVE;

  850.     }

  851. 

  852.     if (v->field_mode) {

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

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

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

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

  857.     } else {

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

  859.         case 0:

  860.             v->s.pict_type = AV_PICTURE_TYPE_P;

  861.             break;

  862.         case 1:

  863.             v->s.pict_type = AV_PICTURE_TYPE_B;

  864.             break;

  865.         case 2:

  866.             v->s.pict_type = AV_PICTURE_TYPE_I;

  867.             break;

  868.         case 3:

  869.             v->s.pict_type = AV_PICTURE_TYPE_BI;

  870.             break;

  871.         case 4:

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

  873.             v->p_frame_skipped = 1;

  874.             break;

  875.         }

  876.     }

  877.     if (v->tfcntrflag)

  878.         skip_bits(gb, 8);

  879.     if (v->broadcast) {

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

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

  882.         } else {

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

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

  885.         }

  886.     }

  887.     if (v->panscanflag) {

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

  889.         //...

  890.     }

  891.     if (v->p_frame_skipped) {

  892.         return 0;

  893.     }

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

  895.     if (v->interlace)

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

  897.     if (v->field_mode) {

  898.         if (!v->refdist_flag)

  899.             v->refdist = 0;

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

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

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

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

  904.         }

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

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

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

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

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

  910.             if (v->brfd < 0)

  911.                 v->brfd = 0;

  912.         }

  913.         goto parse_common_info;

  914.     }

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

  916.         if (v->finterpflag)

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

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

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

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

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

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

  923.             }

  924.         }

  925.     }

  926. 

  927.     parse_common_info:

  928.     if (v->field_mode)

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

  930.     pqindex = get_bits(gb, 5);

  931.     if (!pqindex)

  932.         return -1;

  933.     v->pqindex = pqindex;

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

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

  936.     else

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

  938. 

  939.     v->pquantizer = 1;

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

  941.         v->pquantizer = pqindex < 9;

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

  943.         v->pquantizer = 0;

  944.     v->pqindex = pqindex;

  945.     if (pqindex < 9)

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

  947.     else

  948.         v->halfpq = 0;

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

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

  951.     if (v->postprocflag)

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

  953. 

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

  955.         v->use_ic = 0;

  956. 

  957.     if (v->parse_only)

  958.         return 0;

  959. 

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

  961.     case AV_PICTURE_TYPE_I:

  962.     case AV_PICTURE_TYPE_BI:

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

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

  965.             if (status < 0)

  966.                 return -1;

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

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

  969.         }

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

  971.         if (status < 0)

  972.             return -1;

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

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

  975.         v->condover = CONDOVER_NONE;

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

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

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

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

  980.                 if (status < 0)

  981.                     return -1;

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

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

  984.             }

  985.         }

  986.         break;

  987.     case AV_PICTURE_TYPE_P:

  988.         if (v->field_mode) {

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

  990.             if (!v->numref) {

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

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

  993.             }

  994.         }

  995.         if (v->extended_mv)

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

  997.         else

  998.             v->mvrange = 0;

  999.         if (v->interlace) {

  1000.             if (v->extended_dmv)

  1001.                 v->dmvrange = get_unary(gb, 0, 3);

  1002.             else

  1003.                 v->dmvrange = 0;

  1004.             if (v->fcm == ILACE_FRAME) { // interlaced frame picture

  1005.                 v->fourmvswitch = get_bits1(gb);

  1006.                 v->intcomp      = get_bits1(gb);

  1007.                 if (v->intcomp) {

  1008.                     v->lumscale = get_bits(gb, 6);

  1009.                     v->lumshift = get_bits(gb, 6);

  1010.                     INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);

  1011.                 }

  1012.                 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1013.                 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "

  1014.                        "Imode: %i, Invert: %i\n", status>>1, status&1);

  1015.                 mbmodetab = get_bits(gb, 2);

  1016.                 if (v->fourmvswitch)

  1017.                     v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];

  1018.                 else

  1019.                     v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];

  1020.                 imvtab         = get_bits(gb, 2);

  1021.                 v->imv_vlc     = &ff_vc1_1ref_mvdata_vlc[imvtab];

  1022.                 // interlaced p-picture cbpcy range is [1, 63]

  1023.                 icbptab        = get_bits(gb, 3);

  1024.                 v->cbpcy_vlc   = &ff_vc1_icbpcy_vlc[icbptab];

  1025.                 twomvbptab     = get_bits(gb, 2);

  1026.                 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];

  1027.                 if (v->fourmvswitch) {

  1028.                     fourmvbptab     = get_bits(gb, 2);

  1029.                     v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1030.                 }

  1031.             }

  1032.         }

  1033.         v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13

  1034.         v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11

  1035.         v->range_x = 1 << (v->k_x - 1);

  1036.         v->range_y = 1 << (v->k_y - 1);

  1037. 

  1038.         if (v->pq < 5)

  1039.             v->tt_index = 0;

  1040.         else if (v->pq < 13)

  1041.             v->tt_index = 1;

  1042.         else

  1043.             v->tt_index = 2;

  1044.         if (v->fcm != ILACE_FRAME) {

  1045.             int mvmode;

  1046.             mvmode     = get_unary(gb, 1, 4);

  1047.             lowquant   = (v->pq > 12) ? 0 : 1;

  1048.             v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];

  1049.             if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  1050.                 int mvmode2;

  1051.                 mvmode2 = get_unary(gb, 1, 3);

  1052.                 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];

  1053.                 if (v->field_mode)

  1054.                     v->intcompfield = decode210(gb);

  1055.                 v->lumscale = get_bits(gb, 6);

  1056.                 v->lumshift = get_bits(gb, 6);

  1057.                 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);

  1058.                 if ((v->field_mode) && !v->intcompfield) {

  1059.                     v->lumscale2 = get_bits(gb, 6);

  1060.                     v->lumshift2 = get_bits(gb, 6);

  1061.                     INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);

  1062.                 }

  1063.                 v->use_ic = 1;

  1064.             }

  1065.             v->qs_last = v->s.quarter_sample;

  1066.             if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)

  1067.                 v->s.quarter_sample = 0;

  1068.             else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {

  1069.                 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)

  1070.                     v->s.quarter_sample = 0;

  1071.                 else

  1072.                     v->s.quarter_sample = 1;

  1073.             } else

  1074.                 v->s.quarter_sample = 1;

  1075.             v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN

  1076.                            || (v->mv_mode == MV_PMODE_INTENSITY_COMP

  1077.                                && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));

  1078.         }

  1079.         if (v->fcm == PROGRESSIVE) { // progressive

  1080.             if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&

  1081.                  v->mv_mode2 == MV_PMODE_MIXED_MV)

  1082.                 || v->mv_mode == MV_PMODE_MIXED_MV) {

  1083.                 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);

  1084.                 if (status < 0)

  1085.                     return -1;

  1086.                 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "

  1087.                        "Imode: %i, Invert: %i\n", status>>1, status&1);

  1088.             } else {

  1089.                 v->mv_type_is_raw = 0;

  1090.                 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);

  1091.             }

  1092.             status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1093.             if (status < 0)

  1094.                 return -1;

  1095.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  1096.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1097. 

  1098.             /* Hopefully this is correct for P frames */

  1099.             v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables

  1100.             v->cbpcy_vlc        = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  1101.         } else if (v->fcm == ILACE_FRAME) { // frame interlaced

  1102.             v->qs_last          = v->s.quarter_sample;

  1103.             v->s.quarter_sample = 1;

  1104.             v->s.mspel          = 1;

  1105.         } else {    // field interlaced

  1106.             mbmodetab = get_bits(gb, 3);

  1107.             imvtab = get_bits(gb, 2 + v->numref);

  1108.             if (!v->numref)

  1109.                 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];

  1110.             else

  1111.                 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];

  1112.             icbptab = get_bits(gb, 3);

  1113.             v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];

  1114.             if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&

  1115.                 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {

  1116.                 fourmvbptab     = get_bits(gb, 2);

  1117.                 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1118.                 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];

  1119.             } else {

  1120.                 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];

  1121.             }

  1122.         }

  1123.         if (v->dquant) {

  1124.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1125.             vop_dquant_decoding(v);

  1126.         }

  1127. 

  1128.         v->ttfrm = 0; //FIXME Is that so ?

  1129.         if (v->vstransform) {

  1130.             v->ttmbf = get_bits1(gb);

  1131.             if (v->ttmbf) {

  1132.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  1133.             }

  1134.         } else {

  1135.             v->ttmbf = 1;

  1136.             v->ttfrm = TT_8X8;

  1137.         }

  1138.         break;

  1139.     case AV_PICTURE_TYPE_B:

  1140.         // TODO: implement interlaced frame B picture decoding

  1141.         if (v->fcm == ILACE_FRAME)

  1142.             return -1;

  1143.         if (v->extended_mv)

  1144.             v->mvrange = get_unary(gb, 0, 3);

  1145.         else

  1146.             v->mvrange = 0;

  1147.         v->k_x     = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13

  1148.         v->k_y     = v->mvrange + 8; //k_y can be 8 9 10 11

  1149.         v->range_x = 1 << (v->k_x - 1);

  1150.         v->range_y = 1 << (v->k_y - 1);

  1151. 

  1152.         if (v->pq < 5)

  1153.             v->tt_index = 0;

  1154.         else if (v->pq < 13)

  1155.             v->tt_index = 1;

  1156.         else

  1157.             v->tt_index = 2;

  1158. 

  1159.         if (v->field_mode) {

  1160.             int mvmode;

  1161.             if (v->extended_dmv)

  1162.                 v->dmvrange = get_unary(gb, 0, 3);

  1163.             mvmode = get_unary(gb, 1, 3);

  1164.             lowquant = (v->pq > 12) ? 0 : 1;

  1165.             v->mv_mode          = ff_vc1_mv_pmode_table2[lowquant][mvmode];

  1166.             v->qs_last          = v->s.quarter_sample;

  1167.             v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);

  1168.             v->s.mspel          = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);

  1169.             status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);

  1170.             if (status < 0)

  1171.                 return -1;

  1172.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "

  1173.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1174.             mbmodetab = get_bits(gb, 3);

  1175.             if (v->mv_mode == MV_PMODE_MIXED_MV)

  1176.                 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];

  1177.             else

  1178.                 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];

  1179.             imvtab       = get_bits(gb, 3);

  1180.             v->imv_vlc   = &ff_vc1_2ref_mvdata_vlc[imvtab];

  1181.             icbptab      = get_bits(gb, 3);

  1182.             v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];

  1183.             if (v->mv_mode == MV_PMODE_MIXED_MV) {

  1184.                 fourmvbptab     = get_bits(gb, 2);

  1185.                 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];

  1186.             }

  1187.             v->numref = 1; // interlaced field B pictures are always 2-ref

  1188.         } else {

  1189.             v->mv_mode          = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;

  1190.             v->qs_last          = v->s.quarter_sample;

  1191.             v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);

  1192.             v->s.mspel          = v->s.quarter_sample;

  1193.             status              = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);

  1194.             if (status < 0)

  1195.                 return -1;

  1196.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "

  1197.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1198.             status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);

  1199.             if (status < 0)

  1200.                 return -1;

  1201.             av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "

  1202.                    "Imode: %i, Invert: %i\n", status>>1, status&1);

  1203.             v->s.mv_table_index = get_bits(gb, 2);

  1204.             v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];

  1205.         }

  1206. 

  1207.         if (v->dquant) {

  1208.             av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1209.             vop_dquant_decoding(v);

  1210.         }

  1211. 

  1212.         v->ttfrm = 0;

  1213.         if (v->vstransform) {

  1214.             v->ttmbf = get_bits1(gb);

  1215.             if (v->ttmbf) {

  1216.                 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];

  1217.             }

  1218.         } else {

  1219.             v->ttmbf = 1;

  1220.             v->ttfrm = TT_8X8;

  1221.         }

  1222.         break;

  1223.     }

  1224. 

  1225.     if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {

  1226.         v->range_x <<= 1;

  1227.         v->range_y <<= 1;

  1228.     }

  1229. 

  1230.     /* AC Syntax */

  1231.     v->c_ac_table_index = decode012(gb);

  1232.     if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {

  1233.         v->y_ac_table_index = decode012(gb);

  1234.     }

  1235.     /* DC Syntax */

  1236.     v->s.dc_table_index = get_bits1(gb);

  1237.     if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)

  1238.         && v->dquant) {

  1239.         av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");

  1240.         vop_dquant_decoding(v);

  1241.     }

  1242. 

  1243.     v->bi_type = 0;

  1244.     if (v->s.pict_type == AV_PICTURE_TYPE_BI) {

  1245.         v->s.pict_type = AV_PICTURE_TYPE_B;

  1246.         v->bi_type = 1;

  1247.     }

  1248.     return 0;

  1249. }

  1250. 

  1251. static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {

  1252. {

  1253. { 0x0001,  2}, { 0x0005,  3}, { 0x000D,  4}, { 0x0012,  5}, { 0x000E,  6}, { 0x0015,  7},

  1254. { 0x0013,  8}, { 0x003F,  8}, { 0x004B,  9}, { 0x011F,  9}, { 0x00B8, 10}, { 0x03E3, 10},

  1255. { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},

  1256. { 0x3EAE, 14}, { 0x0000,  4}, { 0x0010,  5}, { 0x0008,  7}, { 0x0020,  8}, { 0x0029,  9},

  1257. { 0x01F4,  9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},

  1258. { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003,  5}, { 0x0011,  7},

  1259. { 0x00C4,  8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},

  1260. { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013,  5}, { 0x0078,  7},

  1261. { 0x0069,  9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},

  1262. { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C,  6}, { 0x0024,  9}, { 0x0094, 11},

  1263. { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D,  6}, { 0x0053,  9}, { 0x01A0, 11},

  1264. { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013,  7}, { 0x007C,  9}, { 0x07C1, 11}, { 0x04AC, 14},

  1265. { 0x001B,  7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079,  7}, { 0x03E1, 10},

  1266. { 0x02D4, 13}, { 0x2306, 14}, { 0x0021,  8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},

  1267. { 0x0035,  8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5,  8}, { 0x0174, 11}, { 0x0785, 13},

  1268. { 0x0048,  9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C,  9}, { 0x00FA, 10}, { 0x07D6, 11},

  1269. { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},

  1270. { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},

  1271. { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},

  1272. { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E,  4},

  1273. { 0x0045,  7}, { 0x01F3,  9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019,  5},

  1274. { 0x0028,  9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030,  6}, { 0x00A2, 10},

  1275. { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F,  6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},

  1276. { 0x0044,  7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063,  7}, { 0x03C3, 12}, { 0x0015,  8},

  1277. { 0x08F6, 12}, { 0x0017,  8}, { 0x0498, 13}, { 0x002C,  8}, { 0x07B2, 13}, { 0x002F,  8},

  1278. { 0x1F54, 13}, { 0x008D,  8}, { 0x07BD, 13}, { 0x008E,  8}, { 0x1182, 13}, { 0x00FB,  8},

  1279. { 0x050B, 13}, { 0x002D,  8}, { 0x07C0, 11}, { 0x0079,  9}, { 0x1F5F, 13}, { 0x007A,  9},

  1280. { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},

  1281. { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},

  1282. { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},

  1283. { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A,  9}

  1284. },

  1285. {

  1286. { 0x0000,  3}, { 0x0003,  4}, { 0x000B,  5}, { 0x0014,  6}, { 0x003F,  6}, { 0x005D,  7},

  1287. { 0x00A2,  8}, { 0x00AC,  9}, { 0x016E,  9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},

  1288. { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},

  1289. { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004,  4},

  1290. { 0x001E,  5}, { 0x0042,  7}, { 0x00B6,  8}, { 0x0173,  9}, { 0x0395, 10}, { 0x072E, 11},

  1291. { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005,  5}, { 0x0040,  7},

  1292. { 0x0049,  9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},

  1293. { 0x0018,  5}, { 0x0025,  8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},

  1294. { 0x139C, 15}, { 0x0029,  6}, { 0x004F,  9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},

  1295. { 0x0038,  6}, { 0x010E,  9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058,  7},

  1296. { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023,  8}, { 0x02E3, 10}, { 0x04E5, 13},

  1297. { 0x2E40, 14}, { 0x00A1,  8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083,  8}, { 0x013A, 11},

  1298. { 0x1721, 13}, { 0x0044,  9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},

  1299. { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},

  1300. { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},

  1301. { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},

  1302. { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003,  3}, { 0x002A,  6}, { 0x00E4,  8},

  1303. { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},

  1304. { 0x0009,  4}, { 0x0054,  8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D,  4},

  1305. { 0x00AD,  9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011,  5}, { 0x016B,  9}, { 0x0B7F, 12},

  1306. { 0x51A4, 15}, { 0x0019,  5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D,  5}, { 0x0394, 10},

  1307. { 0x28D3, 14}, { 0x002B,  6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F,  6}, { 0x0247, 12},

  1308. { 0x0010,  7}, { 0x0A35, 12}, { 0x003E,  6}, { 0x0B7A, 12}, { 0x0059,  7}, { 0x105E, 13},

  1309. { 0x0026,  8}, { 0x09CF, 14}, { 0x0055,  8}, { 0x1CB5, 13}, { 0x0057,  8}, { 0x0E5B, 12},

  1310. { 0x00A0,  8}, { 0x1468, 13}, { 0x0170,  9}, { 0x0090, 10}, { 0x01CE,  9}, { 0x021A, 10},

  1311. { 0x0218, 10}, { 0x0168,  9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},

  1312. { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},

  1313. { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},

  1314. { 0x0169,  9}

  1315. },

  1316. {

  1317. { 0x0001,  2}, { 0x0006,  3}, { 0x000F,  4}, { 0x0016,  5}, { 0x0020,  6}, { 0x0018,  7},

  1318. { 0x0008,  8}, { 0x009A,  8}, { 0x0056,  9}, { 0x013E,  9}, { 0x00F0, 10}, { 0x03A5, 10},

  1319. { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001,  4}, { 0x0011,  5},

  1320. { 0x0002,  7}, { 0x000B,  8}, { 0x0012,  9}, { 0x01D6,  9}, { 0x027E, 10}, { 0x0191, 11},

  1321. { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004,  5}, { 0x0014,  7}, { 0x009E,  8},

  1322. { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017,  5},

  1323. { 0x004E,  7}, { 0x005E,  9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},

  1324. { 0x000E,  6}, { 0x00E1,  8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B,  6},

  1325. { 0x001C,  9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006,  7}, { 0x007A,  9}, { 0x0190, 11},

  1326. { 0x0137, 13}, { 0x001B,  7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071,  7}, { 0x00D7, 10},

  1327. { 0x09BF, 12}, { 0x0007,  8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034,  8}, { 0x0265, 10},

  1328. { 0x009F, 12}, { 0x00E0,  8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015,  9}, { 0x017D, 11},

  1329. { 0x0EBB, 12}, { 0x0014,  9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},

  1330. { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},

  1331. { 0x013A, 13}, { 0x000A,  4}, { 0x0042,  7}, { 0x01D3,  9}, { 0x04DD, 11}, { 0x0012,  5},

  1332. { 0x00E8,  8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039,  6}, { 0x0264, 10}, { 0x0EBA, 12},

  1333. { 0x0000,  7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F,  7}, { 0x04DE, 11}, { 0x0043,  7},

  1334. { 0x04DC, 11}, { 0x0003,  8}, { 0x03CB, 12}, { 0x0006,  8}, { 0x099E, 12}, { 0x002A,  8},

  1335. { 0x05F1, 13}, { 0x000F,  8}, { 0x09FE, 12}, { 0x0033,  8}, { 0x09FF, 12}, { 0x0098,  8},

  1336. { 0x099F, 12}, { 0x00EA,  8}, { 0x013C, 13}, { 0x002E,  8}, { 0x0192, 11}, { 0x0136,  9},

  1337. { 0x006A,  9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},

  1338. { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},

  1339. { 0x0016,  7}

  1340. },

  1341. {

  1342. { 0x0004,  3}, { 0x0014,  5}, { 0x0017,  7}, { 0x007F,  8}, { 0x0154,  9}, { 0x01F2, 10},

  1343. { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},

  1344. { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B,  4}, { 0x0037,  7}, { 0x0062,  9}, { 0x0007, 11},

  1345. { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007,  5},

  1346. { 0x006D,  8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002,  6}, { 0x0061,  9},

  1347. { 0x0055, 12}, { 0x01DF, 14}, { 0x001A,  6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},

  1348. { 0x001E,  6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006,  7}, { 0x0004, 11},

  1349. { 0x02F8, 13}, { 0x0019,  7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057,  7}, { 0x0182, 11},

  1350. { 0x2AA2, 14}, { 0x0004,  8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D,  8}, { 0x0164, 12},

  1351. { 0x076D, 15}, { 0x0002,  9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD,  8}, { 0x0060, 12},

  1352. { 0x0C67, 14}, { 0x001C,  9}, { 0x00EE, 13}, { 0x0003,  9}, { 0x02CF, 13}, { 0x00D9,  9},

  1353. { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},

  1354. { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},

  1355. { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003,  2}, { 0x0054,  7}, { 0x02AB, 10},

  1356. { 0x0016, 13}, { 0x05F7, 14}, { 0x0005,  4}, { 0x00F8,  9}, { 0x0AA9, 12}, { 0x005F, 15},

  1357. { 0x0004,  4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004,  5}, { 0x0077, 11}, { 0x076C, 15},

  1358. { 0x000E,  5}, { 0x000A, 12}, { 0x000C,  5}, { 0x0562, 11}, { 0x0004,  6}, { 0x031C, 12},

  1359. { 0x0006,  6}, { 0x00C8, 13}, { 0x000D,  6}, { 0x01DA, 13}, { 0x0007,  6}, { 0x00C9, 13},

  1360. { 0x0001,  7}, { 0x002E, 14}, { 0x0014,  7}, { 0x1596, 13}, { 0x000A,  7}, { 0x0AC2, 12},

  1361. { 0x0016,  7}, { 0x015B, 14}, { 0x0015,  7}, { 0x015A, 14}, { 0x000F,  8}, { 0x005E, 15},

  1362. { 0x007E,  8}, { 0x00AB,  8}, { 0x002D,  9}, { 0x00D8,  9}, { 0x000B,  9}, { 0x0014, 10},

  1363. { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E,  9},

  1364. { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},

  1365. { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},

  1366. { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D,  9}

  1367. },

  1368. {

  1369. { 0x0002,  2}, { 0x0006,  3}, { 0x000F,  4}, { 0x000D,  5}, { 0x000C,  5}, { 0x0015,  6},

  1370. { 0x0013,  6}, { 0x0012,  6}, { 0x0017,  7}, { 0x001F,  8}, { 0x001E,  8}, { 0x001D,  8},

  1371. { 0x0025,  9}, { 0x0024,  9}, { 0x0023,  9}, { 0x0021,  9}, { 0x0021, 10}, { 0x0020, 10},

  1372. { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},

  1373. { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E,  4}, { 0x0014,  6}, { 0x0016,  7},

  1374. { 0x001C,  8}, { 0x0020,  9}, { 0x001F,  9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},

  1375. { 0x0055, 12}, { 0x000B,  5}, { 0x0015,  7}, { 0x001E,  9}, { 0x000C, 10}, { 0x0056, 12},

  1376. { 0x0011,  6}, { 0x001B,  8}, { 0x001D,  9}, { 0x000B, 10}, { 0x0010,  6}, { 0x0022,  9},

  1377. { 0x000A, 10}, { 0x000D,  6}, { 0x001C,  9}, { 0x0008, 10}, { 0x0012,  7}, { 0x001B,  9},

  1378. { 0x0054, 12}, { 0x0014,  7}, { 0x001A,  9}, { 0x0057, 12}, { 0x0019,  8}, { 0x0009, 10},

  1379. { 0x0018,  8}, { 0x0023, 11}, { 0x0017,  8}, { 0x0019,  9}, { 0x0018,  9}, { 0x0007, 10},

  1380. { 0x0058, 12}, { 0x0007,  4}, { 0x000C,  6}, { 0x0016,  8}, { 0x0017,  9}, { 0x0006, 10},

  1381. { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F,  6}, { 0x0016,  9}, { 0x0005, 10},

  1382. { 0x000E,  6}, { 0x0004, 10}, { 0x0011,  7}, { 0x0024, 11}, { 0x0010,  7}, { 0x0025, 11},

  1383. { 0x0013,  7}, { 0x005A, 12}, { 0x0015,  8}, { 0x005B, 12}, { 0x0014,  8}, { 0x0013,  8},

  1384. { 0x001A,  8}, { 0x0015,  9}, { 0x0014,  9}, { 0x0013,  9}, { 0x0012,  9}, { 0x0011,  9},

  1385. { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},

  1386. { 0x0003,  7}

  1387. },

  1388. {

  1389. { 0x0002,  2}, { 0x000F,  4}, { 0x0015,  6}, { 0x0017,  7}, { 0x001F,  8}, { 0x0025,  9},

  1390. { 0x0024,  9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},

  1391. { 0x0006,  3}, { 0x0014,  6}, { 0x001E,  8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},

  1392. { 0x000E,  4}, { 0x001D,  8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D,  5}, { 0x0023,  9},

  1393. { 0x000D, 10}, { 0x000C,  5}, { 0x0022,  9}, { 0x0052, 12}, { 0x000B,  5}, { 0x000C, 10},

  1394. { 0x0053, 12}, { 0x0013,  6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012,  6}, { 0x000A, 10},

  1395. { 0x0011,  6}, { 0x0009, 10}, { 0x0010,  6}, { 0x0008, 10}, { 0x0016,  7}, { 0x0055, 12},

  1396. { 0x0015,  7}, { 0x0014,  7}, { 0x001C,  8}, { 0x001B,  8}, { 0x0021,  9}, { 0x0020,  9},

  1397. { 0x001F,  9}, { 0x001E,  9}, { 0x001D,  9}, { 0x001C,  9}, { 0x001B,  9}, { 0x001A,  9},

  1398. { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007,  4}, { 0x0019,  9},

  1399. { 0x0005, 11}, { 0x000F,  6}, { 0x0004, 11}, { 0x000E,  6}, { 0x000D,  6}, { 0x000C,  6},

  1400. { 0x0013,  7}, { 0x0012,  7}, { 0x0011,  7}, { 0x0010,  7}, { 0x001A,  8}, { 0x0019,  8},

  1401. { 0x0018,  8}, { 0x0017,  8}, { 0x0016,  8}, { 0x0015,  8}, { 0x0014,  8}, { 0x0013,  8},

  1402. { 0x0018,  9}, { 0x0017,  9}, { 0x0016,  9}, { 0x0015,  9}, { 0x0014,  9}, { 0x0013,  9},

  1403. { 0x0012,  9}, { 0x0011,  9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},

  1404. { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},

  1405. { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},

  1406. { 0x0003,  7}

  1407. },

  1408. {

  1409. { 0x0000,  2}, { 0x0003,  3}, { 0x000D,  4}, { 0x0005,  4}, { 0x001C,  5}, { 0x0016,  5},

  1410. { 0x003F,  6}, { 0x003A,  6}, { 0x002E,  6}, { 0x0022,  6}, { 0x007B,  7}, { 0x0067,  7},

  1411. { 0x005F,  7}, { 0x0047,  7}, { 0x0026,  7}, { 0x00EF,  8}, { 0x00CD,  8}, { 0x00C1,  8},

  1412. { 0x00A9,  8}, { 0x004F,  8}, { 0x01F2,  9}, { 0x01DD,  9}, { 0x0199,  9}, { 0x0185,  9},

  1413. { 0x015D,  9}, { 0x011B,  9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},

  1414. { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},

  1415. { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},

  1416. { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},

  1417. { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},

  1418. { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009,  4}, { 0x0010,  5}, { 0x0029,  6}, { 0x0062,  7},

  1419. { 0x00F3,  8}, { 0x00AD,  8}, { 0x01E5,  9}, { 0x0179,  9}, { 0x009C,  9}, { 0x03B1, 10},

  1420. { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},

  1421. { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008,  5}, { 0x0063,  7},

  1422. { 0x00AF,  8}, { 0x017B,  9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},

  1423. { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028,  6}, { 0x00C3,  8}, { 0x0151,  9}, { 0x02A1, 10},

  1424. { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065,  7}, { 0x01DA,  9}, { 0x02AF, 10},

  1425. { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025,  7}, { 0x0118,  9}, { 0x0646, 11},

  1426. { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9,  8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},

  1427. { 0x0048,  8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180,  9}, { 0x0465, 11}, { 0x1905, 13},

  1428. { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},

  1429. { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},

  1430. { 0x0078,  7}, { 0x0155,  9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA,  8}, { 0x07DC, 11},

  1431. { 0x1907, 13}, { 0x00AC,  8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6,  9}, { 0x0AE2, 12},

  1432. { 0x01DC,  9}, { 0x04ED, 12}, { 0x0184,  9}, { 0x1904, 13}, { 0x0156,  9}, { 0x09D9, 13},

  1433. { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},

  1434. { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},

  1435. { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},

  1436. { 0x007A,  7}

  1437. },

  1438. {

  1439. { 0x0002,  2}, { 0x0000,  3}, { 0x001E,  5}, { 0x0004,  5}, { 0x0012,  6}, { 0x0070,  7},

  1440. { 0x001A,  7}, { 0x005F,  8}, { 0x0047,  8}, { 0x01D3,  9}, { 0x00B5,  9}, { 0x0057,  9},

  1441. { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},

  1442. { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},

  1443. { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},

  1444. { 0x08C0, 13}, { 0x055D, 13}, { 0x0003,  3}, { 0x000A,  5}, { 0x0077,  7}, { 0x00E5,  8},

  1445. { 0x01D9,  9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},

  1446. { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C,  4}, { 0x007D,  7}, { 0x0044,  8},

  1447. { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B,  5},

  1448. { 0x00E2,  8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007,  5},

  1449. { 0x01D8,  9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035,  6}, { 0x03E1, 10},

  1450. { 0x059C, 12}, { 0x38C3, 14}, { 0x000C,  6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},

  1451. { 0x0068,  7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020,  7}, { 0x0F90, 12}, { 0x7CF6, 15},

  1452. { 0x00E8,  8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045,  8}, { 0x0B3A, 13}, { 0x01F1,  9},

  1453. { 0x3B46, 14}, { 0x01A7,  9}, { 0x1676, 14}, { 0x0056,  9}, { 0x692A, 15}, { 0x038D, 10},

  1454. { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},

  1455. { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},

  1456. { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},

  1457. { 0x055F, 13}, { 0x003F,  6}, { 0x006D,  9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013,  6},

  1458. { 0x0119, 10}, { 0x0B66, 13}, { 0x000B,  6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075,  7},

  1459. { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E,  7}, { 0x1F22, 13}, { 0x0021,  7}, { 0x054F, 13},

  1460. { 0x0014,  7}, { 0x3A44, 14}, { 0x00E4,  8}, { 0x7CF7, 15}, { 0x005E,  8}, { 0x7185, 15},

  1461. { 0x0037,  8}, { 0x2C73, 15}, { 0x01DB,  9}, { 0x59DD, 16}, { 0x01C7,  9}, { 0x692B, 15},

  1462. { 0x01A6,  9}, { 0x58E5, 16}, { 0x00B4,  9}, { 0x1F3D0, 17}, { 0x00B0,  9}, { 0xB1C9, 17},

  1463. { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},

  1464. { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},

  1465. { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},

  1466. { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},

  1467. { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},

  1468. { 0x0073,  7}

  1469. }

  1470. };

  1471. 

  1472. static const uint16_t vlc_offs[] = {

  1473.         0,   520,   552,   616,  1128,  1160,  1224,  1740,  1772,  1836,  1900,  2436,

  1474.      2986,  3050,  3610,  4154,  4218,  4746,  5326,  5390,  5902,  6554,  7658,  8342,

  1475.      9304,  9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,

  1476.     20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,

  1477.     27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,

  1478.     29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,

  1479.     31714, 31746, 31778, 32306, 32340, 32372

  1480. };

  1481. 

  1482. /**

  1483.  * Init VC-1 specific tables and VC1Context members

  1484.  * @param v The VC1Context to initialize

  1485.  * @return Status

  1486.  */

  1487. int ff_vc1_init_common(VC1Context *v)

  1488. {

  1489.     static int done = 0;

  1490.     int i = 0;

  1491.     static VLC_TYPE vlc_table[32372][2];

  1492. 

  1493.     v->hrd_rate = v->hrd_buffer = NULL;

  1494. 

  1495.     /* VLC tables */

  1496.     if (!done) {

  1497.         INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,

  1498.                         ff_vc1_bfraction_bits, 1, 1,

  1499.                         ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);

  1500.         INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,

  1501.                         ff_vc1_norm2_bits, 1, 1,

  1502.                         ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);

  1503.         INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,

  1504.                         ff_vc1_norm6_bits, 1, 1,

  1505.                         ff_vc1_norm6_codes, 2, 2, 556);

  1506.         INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,

  1507.                         ff_vc1_imode_bits, 1, 1,

  1508.                         ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);

  1509.         for (i = 0; i < 3; i++) {

  1510.             ff_vc1_ttmb_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 0]];

  1511.             ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];

  1512.             init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,

  1513.                      ff_vc1_ttmb_bits[i], 1, 1,

  1514.                      ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1515.             ff_vc1_ttblk_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 1]];

  1516.             ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];

  1517.             init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,

  1518.                      ff_vc1_ttblk_bits[i], 1, 1,

  1519.                      ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1520.             ff_vc1_subblkpat_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 2]];

  1521.             ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];

  1522.             init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,

  1523.                      ff_vc1_subblkpat_bits[i], 1, 1,

  1524.                      ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1525.         }

  1526.         for (i = 0; i < 4; i++) {

  1527.             ff_vc1_4mv_block_pattern_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 9]];

  1528.             ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];

  1529.             init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,

  1530.                      ff_vc1_4mv_block_pattern_bits[i], 1, 1,

  1531.                      ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1532.             ff_vc1_cbpcy_p_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 10]];

  1533.             ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];

  1534.             init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,

  1535.                      ff_vc1_cbpcy_p_bits[i], 1, 1,

  1536.                      ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1537.             ff_vc1_mv_diff_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 11]];

  1538.             ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];

  1539.             init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,

  1540.                      ff_vc1_mv_diff_bits[i], 1, 1,

  1541.                      ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1542.         }

  1543.         for (i = 0; i < 8; i++) {

  1544.             ff_vc1_ac_coeff_table[i].table           = &vlc_table[vlc_offs[i * 2 + 21]];

  1545.             ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];

  1546.             init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],

  1547.                      &vc1_ac_tables[i][0][1], 8, 4,

  1548.                      &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);

  1549.             /* initialize interlaced MVDATA tables (2-Ref) */

  1550.             ff_vc1_2ref_mvdata_vlc[i].table           = &vlc_table[vlc_offs[i * 2 + 22]];

  1551.             ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];

  1552.             init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,

  1553.                      ff_vc1_2ref_mvdata_bits[i], 1, 1,

  1554.                      ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);

  1555.         }

  1556.         for (i = 0; i < 4; i++) {

  1557.             /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */

  1558.             ff_vc1_intfr_4mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 37]];

  1559.             ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];

  1560.             init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,

  1561.                      ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,

  1562.                      ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1563.             /* initialize NON-4MV MBMODE VLC tables for the same */

  1564.             ff_vc1_intfr_non4mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 38]];

  1565.             ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];

  1566.             init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,

  1567.                      ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,

  1568.                      ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1569.             /* initialize interlaced MVDATA tables (1-Ref) */

  1570.             ff_vc1_1ref_mvdata_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 39]];

  1571.             ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];

  1572.             init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,

  1573.                      ff_vc1_1ref_mvdata_bits[i], 1, 1,

  1574.                      ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);

  1575.         }

  1576.         for (i = 0; i < 4; i++) {

  1577.             /* Initialize 2MV Block pattern VLC tables */

  1578.             ff_vc1_2mv_block_pattern_vlc[i].table           = &vlc_table[vlc_offs[i + 49]];

  1579.             ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];

  1580.             init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,

  1581.                      ff_vc1_2mv_block_pattern_bits[i], 1, 1,

  1582.                      ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1583.         }

  1584.         for (i = 0; i < 8; i++) {

  1585.             /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */

  1586.             ff_vc1_icbpcy_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 53]];

  1587.             ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];

  1588.             init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,

  1589.                      ff_vc1_icbpcy_p_bits[i], 1, 1,

  1590.                      ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);

  1591.             /* Initialize interlaced field picture MBMODE VLC tables */

  1592.             ff_vc1_if_mmv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 54]];

  1593.             ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];

  1594.             init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,

  1595.                      ff_vc1_if_mmv_mbmode_bits[i], 1, 1,

  1596.                      ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1597.             ff_vc1_if_1mv_mbmode_vlc[i].table           = &vlc_table[vlc_offs[i * 3 + 55]];

  1598.             ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];

  1599.             init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,

  1600.                      ff_vc1_if_1mv_mbmode_bits[i], 1, 1,

  1601.                      ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);

  1602.         }

  1603.         done = 1;

  1604.     }

  1605. 

  1606.     /* Other defaults */

  1607.     v->pq      = -1;

  1608.     v->mvrange = 0; /* 7.1.1.18, p80 */

  1609. 

  1610.     return 0;

  1611. }