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-rw-r--r--ffmpeg/libavcodec/vc1.c1666
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diff --git a/ffmpeg/libavcodec/vc1.c b/ffmpeg/libavcodec/vc1.c
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+/*
+ * VC-1 and WMV3 decoder common code
+ * Copyright (c) 2011 Mashiat Sarker Shakkhar
+ * Copyright (c) 2006-2007 Konstantin Shishkov
+ * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * VC-1 and WMV3 decoder common code
+ *
+ */
+
+#include "internal.h"
+#include "avcodec.h"
+#include "mpegvideo.h"
+#include "vc1.h"
+#include "vc1data.h"
+#include "msmpeg4data.h"
+#include "unary.h"
+#include "simple_idct.h"
+
+#undef NDEBUG
+#include <assert.h>
+
+/***********************************************************************/
+/**
+ * @name VC-1 Bitplane decoding
+ * @see 8.7, p56
+ * @{
+ */
+
+/**
+ * Imode types
+ * @{
+ */
+enum Imode {
+ IMODE_RAW,
+ IMODE_NORM2,
+ IMODE_DIFF2,
+ IMODE_NORM6,
+ IMODE_DIFF6,
+ IMODE_ROWSKIP,
+ IMODE_COLSKIP
+};
+/** @} */ //imode defines
+
+/** Decode rows by checking if they are skipped
+ * @param plane Buffer to store decoded bits
+ * @param[in] width Width of this buffer
+ * @param[in] height Height of this buffer
+ * @param[in] stride of this buffer
+ */
+static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
+ GetBitContext *gb)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ if (!get_bits1(gb)) //rowskip
+ memset(plane, 0, width);
+ else
+ for (x = 0; x < width; x++)
+ plane[x] = get_bits1(gb);
+ plane += stride;
+ }
+}
+
+/** Decode columns by checking if they are skipped
+ * @param plane Buffer to store decoded bits
+ * @param[in] width Width of this buffer
+ * @param[in] height Height of this buffer
+ * @param[in] stride of this buffer
+ * @todo FIXME: Optimize
+ */
+static void decode_colskip(uint8_t* plane, int width, int height, int stride,
+ GetBitContext *gb)
+{
+ int x, y;
+
+ for (x = 0; x < width; x++) {
+ if (!get_bits1(gb)) //colskip
+ for (y = 0; y < height; y++)
+ plane[y*stride] = 0;
+ else
+ for (y = 0; y < height; y++)
+ plane[y*stride] = get_bits1(gb);
+ plane ++;
+ }
+}
+
+/** Decode a bitplane's bits
+ * @param data bitplane where to store the decode bits
+ * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
+ * @param v VC-1 context for bit reading and logging
+ * @return Status
+ * @todo FIXME: Optimize
+ */
+static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
+{
+ GetBitContext *gb = &v->s.gb;
+
+ int imode, x, y, code, offset;
+ uint8_t invert, *planep = data;
+ int width, height, stride;
+
+ width = v->s.mb_width;
+ height = v->s.mb_height >> v->field_mode;
+ stride = v->s.mb_stride;
+ invert = get_bits1(gb);
+ imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
+
+ *raw_flag = 0;
+ switch (imode) {
+ case IMODE_RAW:
+ //Data is actually read in the MB layer (same for all tests == "raw")
+ *raw_flag = 1; //invert ignored
+ return invert;
+ case IMODE_DIFF2:
+ case IMODE_NORM2:
+ if ((height * width) & 1) {
+ *planep++ = get_bits1(gb);
+ offset = 1;
+ }
+ else
+ offset = 0;
+ // decode bitplane as one long line
+ for (y = offset; y < height * width; y += 2) {
+ code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
+ *planep++ = code & 1;
+ offset++;
+ if (offset == width) {
+ offset = 0;
+ planep += stride - width;
+ }
+ *planep++ = code >> 1;
+ offset++;
+ if (offset == width) {
+ offset = 0;
+ planep += stride - width;
+ }
+ }
+ break;
+ case IMODE_DIFF6:
+ case IMODE_NORM6:
+ if (!(height % 3) && (width % 3)) { // use 2x3 decoding
+ for (y = 0; y < height; y += 3) {
+ for (x = width & 1; x < width; x += 2) {
+ code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
+ if (code < 0) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
+ return -1;
+ }
+ planep[x + 0] = (code >> 0) & 1;
+ planep[x + 1] = (code >> 1) & 1;
+ planep[x + 0 + stride] = (code >> 2) & 1;
+ planep[x + 1 + stride] = (code >> 3) & 1;
+ planep[x + 0 + stride * 2] = (code >> 4) & 1;
+ planep[x + 1 + stride * 2] = (code >> 5) & 1;
+ }
+ planep += stride * 3;
+ }
+ if (width & 1)
+ decode_colskip(data, 1, height, stride, &v->s.gb);
+ } else { // 3x2
+ planep += (height & 1) * stride;
+ for (y = height & 1; y < height; y += 2) {
+ for (x = width % 3; x < width; x += 3) {
+ code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
+ if (code < 0) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
+ return -1;
+ }
+ planep[x + 0] = (code >> 0) & 1;
+ planep[x + 1] = (code >> 1) & 1;
+ planep[x + 2] = (code >> 2) & 1;
+ planep[x + 0 + stride] = (code >> 3) & 1;
+ planep[x + 1 + stride] = (code >> 4) & 1;
+ planep[x + 2 + stride] = (code >> 5) & 1;
+ }
+ planep += stride * 2;
+ }
+ x = width % 3;
+ if (x)
+ decode_colskip(data, x, height, stride, &v->s.gb);
+ if (height & 1)
+ decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
+ }
+ break;
+ case IMODE_ROWSKIP:
+ decode_rowskip(data, width, height, stride, &v->s.gb);
+ break;
+ case IMODE_COLSKIP:
+ decode_colskip(data, width, height, stride, &v->s.gb);
+ break;
+ default:
+ break;
+ }
+
+ /* Applying diff operator */
+ if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
+ planep = data;
+ planep[0] ^= invert;
+ for (x = 1; x < width; x++)
+ planep[x] ^= planep[x-1];
+ for (y = 1; y < height; y++) {
+ planep += stride;
+ planep[0] ^= planep[-stride];
+ for (x = 1; x < width; x++) {
+ if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
+ else planep[x] ^= planep[x-1];
+ }
+ }
+ } else if (invert) {
+ planep = data;
+ for (x = 0; x < stride * height; x++)
+ planep[x] = !planep[x]; //FIXME stride
+ }
+ return (imode << 1) + invert;
+}
+
+/** @} */ //Bitplane group
+
+/***********************************************************************/
+/** VOP Dquant decoding
+ * @param v VC-1 Context
+ */
+static int vop_dquant_decoding(VC1Context *v)
+{
+ GetBitContext *gb = &v->s.gb;
+ int pqdiff;
+
+ //variable size
+ if (v->dquant == 2) {
+ pqdiff = get_bits(gb, 3);
+ if (pqdiff == 7)
+ v->altpq = get_bits(gb, 5);
+ else
+ v->altpq = v->pq + pqdiff + 1;
+ } else {
+ v->dquantfrm = get_bits1(gb);
+ if (v->dquantfrm) {
+ v->dqprofile = get_bits(gb, 2);
+ switch (v->dqprofile) {
+ case DQPROFILE_SINGLE_EDGE:
+ case DQPROFILE_DOUBLE_EDGES:
+ v->dqsbedge = get_bits(gb, 2);
+ break;
+ case DQPROFILE_ALL_MBS:
+ v->dqbilevel = get_bits1(gb);
+ if (!v->dqbilevel)
+ v->halfpq = 0;
+ default:
+ break; //Forbidden ?
+ }
+ if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
+ pqdiff = get_bits(gb, 3);
+ if (pqdiff == 7)
+ v->altpq = get_bits(gb, 5);
+ else
+ v->altpq = v->pq + pqdiff + 1;
+ }
+ }
+ }
+ return 0;
+}
+
+static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
+
+/**
+ * Decode Simple/Main Profiles sequence header
+ * @see Figure 7-8, p16-17
+ * @param avctx Codec context
+ * @param gb GetBit context initialized from Codec context extra_data
+ * @return Status
+ */
+int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
+{
+ av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));
+ v->profile = get_bits(gb, 2);
+ if (v->profile == PROFILE_COMPLEX) {
+ av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
+ }
+
+ if (v->profile == PROFILE_ADVANCED) {
+ v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
+ v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
+ return decode_sequence_header_adv(v, gb);
+ } else {
+ v->zz_8x4 = ff_wmv2_scantableA;
+ v->zz_4x8 = ff_wmv2_scantableB;
+ v->res_y411 = get_bits1(gb);
+ v->res_sprite = get_bits1(gb);
+ if (v->res_y411) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Old interlaced mode is not supported\n");
+ return -1;
+ }
+ }
+
+ // (fps-2)/4 (->30)
+ v->frmrtq_postproc = get_bits(gb, 3); //common
+ // (bitrate-32kbps)/64kbps
+ v->bitrtq_postproc = get_bits(gb, 5); //common
+ v->s.loop_filter = get_bits1(gb); //common
+ if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
+ av_log(avctx, AV_LOG_ERROR,
+ "LOOPFILTER shall not be enabled in Simple Profile\n");
+ }
+ if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
+ v->s.loop_filter = 0;
+
+ v->res_x8 = get_bits1(gb); //reserved
+ v->multires = get_bits1(gb);
+ v->res_fasttx = get_bits1(gb);
+ if (!v->res_fasttx) {
+ v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
+ v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
+ v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
+ v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
+ v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
+ v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
+ v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
+ v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
+ }
+
+ v->fastuvmc = get_bits1(gb); //common
+ if (!v->profile && !v->fastuvmc) {
+ av_log(avctx, AV_LOG_ERROR,
+ "FASTUVMC unavailable in Simple Profile\n");
+ return -1;
+ }
+ v->extended_mv = get_bits1(gb); //common
+ if (!v->profile && v->extended_mv)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "Extended MVs unavailable in Simple Profile\n");
+ return -1;
+ }
+ v->dquant = get_bits(gb, 2); //common
+ v->vstransform = get_bits1(gb); //common
+
+ v->res_transtab = get_bits1(gb);
+ if (v->res_transtab)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "1 for reserved RES_TRANSTAB is forbidden\n");
+ return -1;
+ }
+
+ v->overlap = get_bits1(gb); //common
+
+ v->s.resync_marker = get_bits1(gb);
+ v->rangered = get_bits1(gb);
+ if (v->rangered && v->profile == PROFILE_SIMPLE) {
+ av_log(avctx, AV_LOG_INFO,
+ "RANGERED should be set to 0 in Simple Profile\n");
+ }
+
+ v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
+ v->quantizer_mode = get_bits(gb, 2); //common
+
+ v->finterpflag = get_bits1(gb); //common
+
+ if (v->res_sprite) {
+ int w = get_bits(gb, 11);
+ int h = get_bits(gb, 11);
+ avcodec_set_dimensions(v->s.avctx, w, h);
+ skip_bits(gb, 5); //frame rate
+ v->res_x8 = get_bits1(gb);
+ if (get_bits1(gb)) { // something to do with DC VLC selection
+ av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
+ return -1;
+ }
+ skip_bits(gb, 3); //slice code
+ v->res_rtm_flag = 0;
+ } else {
+ v->res_rtm_flag = get_bits1(gb); //reserved
+ }
+ if (!v->res_rtm_flag) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Old WMV3 version detected, some frames may be decoded incorrectly\n");
+ //return -1;
+ }
+ //TODO: figure out what they mean (always 0x402F)
+ if (!v->res_fasttx)
+ skip_bits(gb, 16);
+ av_log(avctx, AV_LOG_DEBUG,
+ "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
+ "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
+ "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
+ v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
+ v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
+ v->dquant, v->quantizer_mode, avctx->max_b_frames);
+ return 0;
+}
+
+static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
+{
+ v->res_rtm_flag = 1;
+ v->level = get_bits(gb, 3);
+ if (v->level >= 5) {
+ av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
+ }
+ v->chromaformat = get_bits(gb, 2);
+ if (v->chromaformat != 1) {
+ av_log(v->s.avctx, AV_LOG_ERROR,
+ "Only 4:2:0 chroma format supported\n");
+ return -1;
+ }
+
+ // (fps-2)/4 (->30)
+ v->frmrtq_postproc = get_bits(gb, 3); //common
+ // (bitrate-32kbps)/64kbps
+ v->bitrtq_postproc = get_bits(gb, 5); //common
+ v->postprocflag = get_bits1(gb); //common
+
+ v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
+ v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
+ v->broadcast = get_bits1(gb);
+ v->interlace = get_bits1(gb);
+ v->tfcntrflag = get_bits1(gb);
+ v->finterpflag = get_bits1(gb);
+ skip_bits1(gb); // reserved
+
+ av_log(v->s.avctx, AV_LOG_DEBUG,
+ "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
+ "TFCTRflag=%i, FINTERPflag=%i\n",
+ v->level, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
+ v->tfcntrflag, v->finterpflag);
+
+ v->psf = get_bits1(gb);
+ if (v->psf) { //PsF, 6.1.13
+ av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
+ return -1;
+ }
+ v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
+ if (get_bits1(gb)) { //Display Info - decoding is not affected by it
+ int w, h, ar = 0;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
+ w = get_bits(gb, 14) + 1;
+ h = get_bits(gb, 14) + 1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
+ if (get_bits1(gb))
+ ar = get_bits(gb, 4);
+ if (ar && ar < 14) {
+ v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
+ } else if (ar == 15) {
+ w = get_bits(gb, 8) + 1;
+ h = get_bits(gb, 8) + 1;
+ v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
+ } else {
+ av_reduce(&v->s.avctx->sample_aspect_ratio.num,
+ &v->s.avctx->sample_aspect_ratio.den,
+ v->s.avctx->height * w,
+ v->s.avctx->width * h,
+ 1 << 30);
+ }
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
+ v->s.avctx->sample_aspect_ratio.num,
+ v->s.avctx->sample_aspect_ratio.den);
+
+ if (get_bits1(gb)) { //framerate stuff
+ if (get_bits1(gb)) {
+ v->s.avctx->time_base.num = 32;
+ v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
+ } else {
+ int nr, dr;
+ nr = get_bits(gb, 8);
+ dr = get_bits(gb, 4);
+ if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
+ v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
+ v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
+ }
+ }
+ if (v->broadcast) { // Pulldown may be present
+ v->s.avctx->time_base.den *= 2;
+ v->s.avctx->ticks_per_frame = 2;
+ }
+ }
+
+ if (get_bits1(gb)) {
+ v->s.avctx->color_primaries = get_bits(gb, 8);
+ v->s.avctx->color_trc = get_bits(gb, 8);
+ v->s.avctx->colorspace = get_bits(gb, 8);
+ v->s.avctx->color_range = AVCOL_RANGE_MPEG;
+ }
+ }
+
+ v->hrd_param_flag = get_bits1(gb);
+ if (v->hrd_param_flag) {
+ int i;
+ v->hrd_num_leaky_buckets = get_bits(gb, 5);
+ skip_bits(gb, 4); //bitrate exponent
+ skip_bits(gb, 4); //buffer size exponent
+ for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ skip_bits(gb, 16); //hrd_rate[n]
+ skip_bits(gb, 16); //hrd_buffer[n]
+ }
+ }
+ return 0;
+}
+
+int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
+{
+ int i;
+ int w,h;
+
+ av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
+ v->broken_link = get_bits1(gb);
+ v->closed_entry = get_bits1(gb);
+ v->panscanflag = get_bits1(gb);
+ v->refdist_flag = get_bits1(gb);
+ v->s.loop_filter = get_bits1(gb);
+ if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
+ v->s.loop_filter = 0;
+ v->fastuvmc = get_bits1(gb);
+ v->extended_mv = get_bits1(gb);
+ v->dquant = get_bits(gb, 2);
+ v->vstransform = get_bits1(gb);
+ v->overlap = get_bits1(gb);
+ v->quantizer_mode = get_bits(gb, 2);
+
+ if (v->hrd_param_flag) {
+ for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ skip_bits(gb, 8); //hrd_full[n]
+ }
+ }
+
+ if(get_bits1(gb)){
+ w = (get_bits(gb, 12)+1)<<1;
+ h = (get_bits(gb, 12)+1)<<1;
+ } else {
+ w = v->max_coded_width;
+ h = v->max_coded_height;
+ }
+ avcodec_set_dimensions(avctx, w, h);
+ if (v->extended_mv)
+ v->extended_dmv = get_bits1(gb);
+ if ((v->range_mapy_flag = get_bits1(gb))) {
+ av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
+ v->range_mapy = get_bits(gb, 3);
+ }
+ if ((v->range_mapuv_flag = get_bits1(gb))) {
+ av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
+ v->range_mapuv = get_bits(gb, 3);
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
+ "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
+ "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
+ "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
+ v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
+ v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
+
+ return 0;
+}
+
+int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
+{
+ int pqindex, lowquant, status;
+
+ if (v->finterpflag)
+ v->interpfrm = get_bits1(gb);
+ if (!v->s.avctx->codec)
+ return -1;
+ if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
+ v->respic =
+ v->rangered =
+ v->multires = get_bits(gb, 2) == 1;
+ else
+ skip_bits(gb, 2); //framecnt unused
+ v->rangeredfrm = 0;
+ if (v->rangered)
+ v->rangeredfrm = get_bits1(gb);
+ v->s.pict_type = get_bits1(gb);
+ if (v->s.avctx->max_b_frames) {
+ if (!v->s.pict_type) {
+ if (get_bits1(gb))
+ v->s.pict_type = AV_PICTURE_TYPE_I;
+ else
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ } else
+ v->s.pict_type = AV_PICTURE_TYPE_P;
+ } else
+ v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+
+ v->bi_type = 0;
+ if (v->s.pict_type == AV_PICTURE_TYPE_B) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ if (v->bfraction == 0) {
+ v->s.pict_type = AV_PICTURE_TYPE_BI;
+ }
+ }
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
+ skip_bits(gb, 7); // skip buffer fullness
+
+ if (v->parse_only)
+ return 0;
+
+ /* calculate RND */
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
+ v->rnd = 1;
+ if (v->s.pict_type == AV_PICTURE_TYPE_P)
+ v->rnd ^= 1;
+
+ /* Quantizer stuff */
+ pqindex = get_bits(gb, 5);
+ if (!pqindex)
+ return -1;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = ff_vc1_pquant_table[0][pqindex];
+ else
+ v->pq = ff_vc1_pquant_table[1][pqindex];
+
+ v->pquantizer = 1;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pquantizer = pqindex < 9;
+ if (v->quantizer_mode == QUANT_NON_UNIFORM)
+ v->pquantizer = 0;
+ v->pqindex = pqindex;
+ if (pqindex < 9)
+ v->halfpq = get_bits1(gb);
+ else
+ v->halfpq = 0;
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits1(gb);
+ v->dquantfrm = 0;
+ if (v->extended_mv == 1)
+ v->mvrange = get_unary(gb, 0, 3);
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
+ if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
+ v->respic = get_bits(gb, 2);
+
+ if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
+ v->x8_type = get_bits1(gb);
+ } else
+ v->x8_type = 0;
+ av_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
+ (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);
+
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
+ v->use_ic = 0;
+
+ switch (v->s.pict_type) {
+ case AV_PICTURE_TYPE_P:
+ if (v->pq < 5) v->tt_index = 0;
+ else if (v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
+
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int scale, shift, i;
+ v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ v->use_ic = 1;
+ /* fill lookup tables for intensity compensation */
+ if (!v->lumscale) {
+ scale = -64;
+ shift = (255 - v->lumshift * 2) << 6;
+ if (v->lumshift > 31)
+ shift += 128 << 6;
+ } else {
+ scale = v->lumscale + 32;
+ if (v->lumshift > 31)
+ shift = (v->lumshift - 64) << 6;
+ else
+ shift = v->lumshift << 6;
+ }
+ for (i = 0; i < 256; i++) {
+ v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ }
+ }
+ v->qs_last = v->s.quarter_sample;
+ if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else
+ v->s.quarter_sample = 1;
+ } else
+ v->s.quarter_sample = 1;
+ 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));
+
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV) ||
+ v->mv_mode == MV_PMODE_MIXED_MV) {
+ status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ } else {
+ v->mv_type_is_raw = 0;
+ memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+
+ /* Hopefully this is correct for P frames */
+ v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+
+ if (v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0; //FIXME Is that so ?
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
+ break;
+ case AV_PICTURE_TYPE_B:
+ if (v->pq < 5) v->tt_index = 0;
+ else if (v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
+
+ v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
+ v->s.mspel = v->s.quarter_sample;
+
+ status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+
+ v->s.mv_table_index = get_bits(gb, 2);
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+
+ if (v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0;
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
+ break;
+ }
+
+ if (!v->x8_type) {
+ /* AC Syntax */
+ v->c_ac_table_index = decode012(gb);
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->y_ac_table_index = decode012(gb);
+ }
+ /* DC Syntax */
+ v->s.dc_table_index = get_bits1(gb);
+ }
+
+ if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ v->bi_type = 1;
+ }
+ return 0;
+}
+
+/* fill lookup tables for intensity compensation */
+#define INIT_LUT(lumscale, lumshift, luty, lutuv) \
+ if (!lumscale) { \
+ scale = -64; \
+ shift = (255 - lumshift * 2) << 6; \
+ if (lumshift > 31) \
+ shift += 128 << 6; \
+ } else { \
+ scale = lumscale + 32; \
+ if (lumshift > 31) \
+ shift = (lumshift - 64) << 6; \
+ else \
+ shift = lumshift << 6; \
+ } \
+ for (i = 0; i < 256; i++) { \
+ luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
+ lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
+ }
+
+int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
+{
+ int pqindex, lowquant;
+ int status;
+ int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
+ int scale, shift, i; /* for initializing LUT for intensity compensation */
+ int field_mode, fcm;
+
+ v->numref=0;
+ v->p_frame_skipped = 0;
+ if (v->second_field) {
+ if(v->fcm!=2 || v->field_mode!=1)
+ return -1;
+ v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+ if (v->fptype & 4)
+ v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
+ v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
+ if (!v->pic_header_flag)
+ goto parse_common_info;
+ }
+
+ field_mode = 0;
+ if (v->interlace) {
+ fcm = decode012(gb);
+ if (fcm) {
+ if (fcm == ILACE_FIELD)
+ field_mode = 1;
+ if (!v->warn_interlaced++)
+ av_log(v->s.avctx, AV_LOG_ERROR,
+ "Interlaced frames/fields support is incomplete\n");
+ }
+ } else {
+ fcm = PROGRESSIVE;
+ }
+ if (!v->first_pic_header_flag && v->field_mode != field_mode)
+ return -1;
+ v->field_mode = field_mode;
+ v->fcm = fcm;
+
+ if (v->field_mode) {
+ v->fptype = get_bits(gb, 3);
+ v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+ if (v->fptype & 4) // B-picture
+ v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
+ } else {
+ switch (get_unary(gb, 0, 4)) {
+ case 0:
+ v->s.pict_type = AV_PICTURE_TYPE_P;
+ break;
+ case 1:
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ break;
+ case 2:
+ v->s.pict_type = AV_PICTURE_TYPE_I;
+ break;
+ case 3:
+ v->s.pict_type = AV_PICTURE_TYPE_BI;
+ break;
+ case 4:
+ v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
+ v->p_frame_skipped = 1;
+ break;
+ }
+ }
+ if (v->tfcntrflag)
+ skip_bits(gb, 8);
+ if (v->broadcast) {
+ if (!v->interlace || v->psf) {
+ v->rptfrm = get_bits(gb, 2);
+ } else {
+ v->tff = get_bits1(gb);
+ v->rff = get_bits1(gb);
+ }
+ }
+ if (v->panscanflag) {
+ avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
+ //...
+ }
+ if (v->p_frame_skipped) {
+ return 0;
+ }
+ v->rnd = get_bits1(gb);
+ if (v->interlace)
+ v->uvsamp = get_bits1(gb);
+ if(!ff_vc1_bfraction_vlc.table)
+ return 0; //parsing only, vlc tables havnt been allocated
+ if (v->field_mode) {
+ if (!v->refdist_flag)
+ v->refdist = 0;
+ else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
+ v->refdist = get_bits(gb, 2);
+ if (v->refdist == 3)
+ v->refdist += get_unary(gb, 0, 16);
+ }
+ if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ v->frfd = (v->bfraction * v->refdist) >> 8;
+ v->brfd = v->refdist - v->frfd - 1;
+ if (v->brfd < 0)
+ v->brfd = 0;
+ }
+ goto parse_common_info;
+ }
+ if (v->fcm == PROGRESSIVE) {
+ if (v->finterpflag)
+ v->interpfrm = get_bits1(gb);
+ if (v->s.pict_type == AV_PICTURE_TYPE_B) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ if (v->bfraction == 0) {
+ v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
+ }
+ }
+ }
+
+ parse_common_info:
+ if (v->field_mode)
+ v->cur_field_type = !(v->tff ^ v->second_field);
+ pqindex = get_bits(gb, 5);
+ if (!pqindex)
+ return -1;
+ v->pqindex = pqindex;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = ff_vc1_pquant_table[0][pqindex];
+ else
+ v->pq = ff_vc1_pquant_table[1][pqindex];
+
+ v->pquantizer = 1;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pquantizer = pqindex < 9;
+ if (v->quantizer_mode == QUANT_NON_UNIFORM)
+ v->pquantizer = 0;
+ v->pqindex = pqindex;
+ if (pqindex < 9)
+ v->halfpq = get_bits1(gb);
+ else
+ v->halfpq = 0;
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits1(gb);
+ if (v->postprocflag)
+ v->postproc = get_bits(gb, 2);
+
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
+ v->use_ic = 0;
+
+ if (v->parse_only)
+ return 0;
+
+ switch (v->s.pict_type) {
+ case AV_PICTURE_TYPE_I:
+ case AV_PICTURE_TYPE_BI:
+ if (v->fcm == ILACE_FRAME) { //interlace frame picture
+ status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ }
+ status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ v->condover = CONDOVER_NONE;
+ if (v->overlap && v->pq <= 8) {
+ v->condover = decode012(gb);
+ if (v->condover == CONDOVER_SELECT) {
+ status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ }
+ }
+ break;
+ case AV_PICTURE_TYPE_P:
+ if (v->field_mode) {
+ v->numref = get_bits1(gb);
+ if (!v->numref) {
+ v->reffield = get_bits1(gb);
+ v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
+ }
+ }
+ if (v->extended_mv)
+ v->mvrange = get_unary(gb, 0, 3);
+ else
+ v->mvrange = 0;
+ if (v->interlace) {
+ if (v->extended_dmv)
+ v->dmvrange = get_unary(gb, 0, 3);
+ else
+ v->dmvrange = 0;
+ if (v->fcm == ILACE_FRAME) { // interlaced frame picture
+ v->fourmvswitch = get_bits1(gb);
+ v->intcomp = get_bits1(gb);
+ if (v->intcomp) {
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ mbmodetab = get_bits(gb, 2);
+ if (v->fourmvswitch)
+ v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
+ else
+ v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
+ imvtab = get_bits(gb, 2);
+ v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
+ // interlaced p-picture cbpcy range is [1, 63]
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ twomvbptab = get_bits(gb, 2);
+ v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
+ if (v->fourmvswitch) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ }
+ }
+ }
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
+
+ if (v->pq < 5)
+ v->tt_index = 0;
+ else if (v->pq < 13)
+ v->tt_index = 1;
+ else
+ v->tt_index = 2;
+ if (v->fcm != ILACE_FRAME) {
+ int mvmode;
+ mvmode = get_unary(gb, 1, 4);
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int mvmode2;
+ mvmode2 = get_unary(gb, 1, 3);
+ v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
+ if (v->field_mode)
+ v->intcompfield = decode210(gb);
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ if ((v->field_mode) && !v->intcompfield) {
+ v->lumscale2 = get_bits(gb, 6);
+ v->lumshift2 = get_bits(gb, 6);
+ INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
+ }
+ v->use_ic = 1;
+ }
+ v->qs_last = v->s.quarter_sample;
+ if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else
+ v->s.quarter_sample = 1;
+ } else
+ v->s.quarter_sample = 1;
+ 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));
+ }
+ if (v->fcm == PROGRESSIVE) { // progressive
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV)
+ || v->mv_mode == MV_PMODE_MIXED_MV) {
+ status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ } else {
+ v->mv_type_is_raw = 0;
+ memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+
+ /* Hopefully this is correct for P frames */
+ v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ } else if (v->fcm == ILACE_FRAME) { // frame interlaced
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = 1;
+ v->s.mspel = 1;
+ } else { // field interlaced
+ mbmodetab = get_bits(gb, 3);
+ imvtab = get_bits(gb, 2 + v->numref);
+ if (!v->numref)
+ v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
+ else
+ v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
+ } else {
+ v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
+ }
+ }
+ if (v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0; //FIXME Is that so ?
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
+ break;
+ case AV_PICTURE_TYPE_B:
+ if (v->fcm == ILACE_FRAME) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ if (v->bfraction == 0) {
+ return -1;
+ }
+ }
+ if (v->extended_mv)
+ v->mvrange = get_unary(gb, 0, 3);
+ else
+ v->mvrange = 0;
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
+
+ if (v->pq < 5)
+ v->tt_index = 0;
+ else if (v->pq < 13)
+ v->tt_index = 1;
+ else
+ v->tt_index = 2;
+
+ if (v->field_mode) {
+ int mvmode;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
+ if (v->extended_dmv)
+ v->dmvrange = get_unary(gb, 0, 3);
+ mvmode = get_unary(gb, 1, 3);
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
+ v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
+ status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ mbmodetab = get_bits(gb, 3);
+ if (v->mv_mode == MV_PMODE_MIXED_MV)
+ v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
+ else
+ v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
+ imvtab = get_bits(gb, 3);
+ v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ if (v->mv_mode == MV_PMODE_MIXED_MV) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ }
+ v->numref = 1; // interlaced field B pictures are always 2-ref
+ } else if (v->fcm == ILACE_FRAME) {
+ if (v->extended_dmv)
+ v->dmvrange = get_unary(gb, 0, 3);
+ get_bits1(gb); /* intcomp - present but shall always be 0 */
+ v->intcomp = 0;
+ v->mv_mode = MV_PMODE_1MV;
+ v->fourmvswitch = 0;
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = 1;
+ v->s.mspel = 1;
+ status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ mbmodetab = get_bits(gb, 2);
+ v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
+ imvtab = get_bits(gb, 2);
+ v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
+ // interlaced p/b-picture cbpcy range is [1, 63]
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ twomvbptab = get_bits(gb, 2);
+ v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ } else {
+ v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
+ v->s.mspel = v->s.quarter_sample;
+ status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ v->s.mv_table_index = get_bits(gb, 2);
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ }
+
+ if (v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0;
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
+ break;
+ }
+
+ if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
+ v->range_x <<= 1;
+ v->range_y <<= 1;
+ }
+
+ /* AC Syntax */
+ v->c_ac_table_index = decode012(gb);
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->y_ac_table_index = decode012(gb);
+ }
+ /* DC Syntax */
+ v->s.dc_table_index = get_bits1(gb);
+ if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
+ && v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->bi_type = 0;
+ if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ v->bi_type = 1;
+ }
+ return 0;
+}
+
+static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
+{
+{ 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
+{ 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
+{ 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
+{ 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
+{ 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
+{ 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
+{ 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
+{ 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
+{ 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
+{ 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
+{ 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
+{ 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
+{ 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
+{ 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
+{ 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
+{ 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
+{ 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
+{ 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
+{ 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
+{ 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
+{ 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
+{ 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
+{ 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
+{ 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
+{ 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
+{ 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
+{ 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
+{ 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
+{ 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
+{ 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
+{ 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
+},
+{
+{ 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
+{ 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
+{ 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
+{ 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
+{ 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
+{ 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
+{ 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
+{ 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
+{ 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
+{ 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
+{ 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
+{ 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
+{ 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
+{ 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
+{ 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
+{ 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
+{ 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
+{ 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
+{ 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
+{ 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
+{ 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
+{ 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
+{ 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
+{ 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
+{ 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
+{ 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
+{ 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
+{ 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
+{ 0x0169, 9}
+},
+{
+{ 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
+{ 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
+{ 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
+{ 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
+{ 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
+{ 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
+{ 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
+{ 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
+{ 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
+{ 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
+{ 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
+{ 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
+{ 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
+{ 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
+{ 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
+{ 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
+{ 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
+{ 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
+{ 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
+{ 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
+{ 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
+{ 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
+{ 0x0016, 7}
+},
+{
+{ 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
+{ 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
+{ 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
+{ 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
+{ 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
+{ 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
+{ 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
+{ 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
+{ 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
+{ 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
+{ 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
+{ 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
+{ 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
+{ 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
+{ 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
+{ 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
+{ 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
+{ 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
+{ 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
+{ 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
+{ 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
+{ 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
+{ 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
+{ 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
+{ 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
+},
+{
+{ 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
+{ 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
+{ 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
+{ 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
+{ 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
+{ 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
+{ 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
+{ 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
+{ 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
+{ 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
+{ 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
+{ 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
+{ 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
+{ 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
+{ 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
+{ 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
+{ 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
+{ 0x0003, 7}
+},
+{
+{ 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
+{ 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
+{ 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
+{ 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
+{ 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
+{ 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
+{ 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
+{ 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
+{ 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
+{ 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
+{ 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
+{ 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
+{ 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
+{ 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
+{ 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
+{ 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
+{ 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
+{ 0x0003, 7}
+},
+{
+{ 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
+{ 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
+{ 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
+{ 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
+{ 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
+{ 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
+{ 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
+{ 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
+{ 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
+{ 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
+{ 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
+{ 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
+{ 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
+{ 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
+{ 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
+{ 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
+{ 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
+{ 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
+{ 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
+{ 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
+{ 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
+{ 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
+{ 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
+{ 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
+{ 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
+{ 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
+{ 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
+{ 0x007A, 7}
+},
+{
+{ 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
+{ 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
+{ 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
+{ 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
+{ 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
+{ 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
+{ 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
+{ 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
+{ 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
+{ 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
+{ 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
+{ 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
+{ 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
+{ 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
+{ 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
+{ 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
+{ 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
+{ 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
+{ 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
+{ 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
+{ 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
+{ 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
+{ 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
+{ 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
+{ 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
+{ 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
+{ 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
+{ 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
+{ 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
+{ 0x0073, 7}
+}
+};
+
+static const uint16_t vlc_offs[] = {
+ 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
+ 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
+ 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
+ 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
+ 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
+ 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
+ 31714, 31746, 31778, 32306, 32340, 32372
+};
+
+/**
+ * Init VC-1 specific tables and VC1Context members
+ * @param v The VC1Context to initialize
+ * @return Status
+ */
+int ff_vc1_init_common(VC1Context *v)
+{
+ static int done = 0;
+ int i = 0;
+ static VLC_TYPE vlc_table[32372][2];
+
+ v->hrd_rate = v->hrd_buffer = NULL;
+
+ /* VLC tables */
+ if (!done) {
+ INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
+ ff_vc1_bfraction_bits, 1, 1,
+ ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
+ INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
+ ff_vc1_norm2_bits, 1, 1,
+ ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
+ INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
+ ff_vc1_norm6_bits, 1, 1,
+ ff_vc1_norm6_codes, 2, 2, 556);
+ INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
+ ff_vc1_imode_bits, 1, 1,
+ ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
+ for (i = 0; i < 3; i++) {
+ ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
+ ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
+ init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
+ ff_vc1_ttmb_bits[i], 1, 1,
+ ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
+ ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
+ init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
+ ff_vc1_ttblk_bits[i], 1, 1,
+ ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
+ ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
+ init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
+ ff_vc1_subblkpat_bits[i], 1, 1,
+ ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
+ ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
+ init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
+ ff_vc1_4mv_block_pattern_bits[i], 1, 1,
+ ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
+ ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
+ init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
+ ff_vc1_cbpcy_p_bits[i], 1, 1,
+ ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
+ ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
+ init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
+ ff_vc1_mv_diff_bits[i], 1, 1,
+ ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 8; i++) {
+ ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
+ ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
+ init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
+ &vc1_ac_tables[i][0][1], 8, 4,
+ &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
+ /* initialize interlaced MVDATA tables (2-Ref) */
+ ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
+ ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
+ init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
+ ff_vc1_2ref_mvdata_bits[i], 1, 1,
+ ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
+ ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
+ ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
+ init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
+ ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
+ ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ /* initialize NON-4MV MBMODE VLC tables for the same */
+ ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
+ ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
+ init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
+ ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
+ ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ /* initialize interlaced MVDATA tables (1-Ref) */
+ ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
+ ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
+ init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
+ ff_vc1_1ref_mvdata_bits[i], 1, 1,
+ ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ /* Initialize 2MV Block pattern VLC tables */
+ ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
+ ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
+ init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
+ ff_vc1_2mv_block_pattern_bits[i], 1, 1,
+ ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 8; i++) {
+ /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
+ ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
+ ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
+ init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
+ ff_vc1_icbpcy_p_bits[i], 1, 1,
+ ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ /* Initialize interlaced field picture MBMODE VLC tables */
+ ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
+ ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
+ init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
+ ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
+ ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
+ ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
+ init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
+ ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
+ ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ }
+ done = 1;
+ }
+
+ /* Other defaults */
+ v->pq = -1;
+ v->mvrange = 0; /* 7.1.1.18, p80 */
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 20:13:35 +0000