00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00027 #include "libavutil/imgutils.h"
00028
00029 #include "avcodec.h"
00030 #include "dsputil.h"
00031 #include "mpegvideo.h"
00032 #include "golomb.h"
00033
00034 #include "rv34.h"
00035 #include "rv40vlc2.h"
00036 #include "rv40data.h"
00037
00038 static VLC aic_top_vlc;
00039 static VLC aic_mode1_vlc[AIC_MODE1_NUM], aic_mode2_vlc[AIC_MODE2_NUM];
00040 static VLC ptype_vlc[NUM_PTYPE_VLCS], btype_vlc[NUM_BTYPE_VLCS];
00041
00042 static const int16_t mode2_offs[] = {
00043 0, 614, 1222, 1794, 2410, 3014, 3586, 4202, 4792, 5382, 5966, 6542,
00044 7138, 7716, 8292, 8864, 9444, 10030, 10642, 11212, 11814
00045 };
00046
00050 static av_cold void rv40_init_tables(void)
00051 {
00052 int i;
00053 static VLC_TYPE aic_table[1 << AIC_TOP_BITS][2];
00054 static VLC_TYPE aic_mode1_table[AIC_MODE1_NUM << AIC_MODE1_BITS][2];
00055 static VLC_TYPE aic_mode2_table[11814][2];
00056 static VLC_TYPE ptype_table[NUM_PTYPE_VLCS << PTYPE_VLC_BITS][2];
00057 static VLC_TYPE btype_table[NUM_BTYPE_VLCS << BTYPE_VLC_BITS][2];
00058
00059 aic_top_vlc.table = aic_table;
00060 aic_top_vlc.table_allocated = 1 << AIC_TOP_BITS;
00061 init_vlc(&aic_top_vlc, AIC_TOP_BITS, AIC_TOP_SIZE,
00062 rv40_aic_top_vlc_bits, 1, 1,
00063 rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
00064 for(i = 0; i < AIC_MODE1_NUM; i++){
00065
00066 if((i % 10) == 9) continue;
00067 aic_mode1_vlc[i].table = &aic_mode1_table[i << AIC_MODE1_BITS];
00068 aic_mode1_vlc[i].table_allocated = 1 << AIC_MODE1_BITS;
00069 init_vlc(&aic_mode1_vlc[i], AIC_MODE1_BITS, AIC_MODE1_SIZE,
00070 aic_mode1_vlc_bits[i], 1, 1,
00071 aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
00072 }
00073 for(i = 0; i < AIC_MODE2_NUM; i++){
00074 aic_mode2_vlc[i].table = &aic_mode2_table[mode2_offs[i]];
00075 aic_mode2_vlc[i].table_allocated = mode2_offs[i + 1] - mode2_offs[i];
00076 init_vlc(&aic_mode2_vlc[i], AIC_MODE2_BITS, AIC_MODE2_SIZE,
00077 aic_mode2_vlc_bits[i], 1, 1,
00078 aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
00079 }
00080 for(i = 0; i < NUM_PTYPE_VLCS; i++){
00081 ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS];
00082 ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS;
00083 init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
00084 ptype_vlc_bits[i], 1, 1,
00085 ptype_vlc_codes[i], 1, 1,
00086 ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00087 }
00088 for(i = 0; i < NUM_BTYPE_VLCS; i++){
00089 btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS];
00090 btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS;
00091 init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
00092 btype_vlc_bits[i], 1, 1,
00093 btype_vlc_codes[i], 1, 1,
00094 btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00095 }
00096 }
00097
00104 static int get_dimension(GetBitContext *gb, const int *dim)
00105 {
00106 int t = get_bits(gb, 3);
00107 int val = dim[t];
00108 if(val < 0)
00109 val = dim[get_bits1(gb) - val];
00110 if(!val){
00111 do{
00112 t = get_bits(gb, 8);
00113 val += t << 2;
00114 }while(t == 0xFF);
00115 }
00116 return val;
00117 }
00118
00122 static void rv40_parse_picture_size(GetBitContext *gb, int *w, int *h)
00123 {
00124 *w = get_dimension(gb, rv40_standard_widths);
00125 *h = get_dimension(gb, rv40_standard_heights);
00126 }
00127
00128 static int rv40_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceInfo *si)
00129 {
00130 int mb_bits;
00131 int w = r->s.width, h = r->s.height;
00132 int mb_size;
00133
00134 memset(si, 0, sizeof(SliceInfo));
00135 if(get_bits1(gb))
00136 return -1;
00137 si->type = get_bits(gb, 2);
00138 if(si->type == 1) si->type = 0;
00139 si->quant = get_bits(gb, 5);
00140 if(get_bits(gb, 2))
00141 return -1;
00142 si->vlc_set = get_bits(gb, 2);
00143 skip_bits1(gb);
00144 si->pts = get_bits(gb, 13);
00145 if(!si->type || !get_bits1(gb))
00146 rv40_parse_picture_size(gb, &w, &h);
00147 if(av_image_check_size(w, h, 0, r->s.avctx) < 0)
00148 return -1;
00149 si->width = w;
00150 si->height = h;
00151 mb_size = ((w + 15) >> 4) * ((h + 15) >> 4);
00152 mb_bits = ff_rv34_get_start_offset(gb, mb_size);
00153 si->start = get_bits(gb, mb_bits);
00154
00155 return 0;
00156 }
00157
00161 static int rv40_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t *dst)
00162 {
00163 MpegEncContext *s = &r->s;
00164 int i, j, k, v;
00165 int A, B, C;
00166 int pattern;
00167 int8_t *ptr;
00168
00169 for(i = 0; i < 4; i++, dst += r->intra_types_stride){
00170 if(!i && s->first_slice_line){
00171 pattern = get_vlc2(gb, aic_top_vlc.table, AIC_TOP_BITS, 1);
00172 dst[0] = (pattern >> 2) & 2;
00173 dst[1] = (pattern >> 1) & 2;
00174 dst[2] = pattern & 2;
00175 dst[3] = (pattern << 1) & 2;
00176 continue;
00177 }
00178 ptr = dst;
00179 for(j = 0; j < 4; j++){
00180
00181
00182
00183
00184
00185
00186 A = ptr[-r->intra_types_stride + 1];
00187 B = ptr[-r->intra_types_stride];
00188 C = ptr[-1];
00189 pattern = A + (B << 4) + (C << 8);
00190 for(k = 0; k < MODE2_PATTERNS_NUM; k++)
00191 if(pattern == rv40_aic_table_index[k])
00192 break;
00193 if(j < 3 && k < MODE2_PATTERNS_NUM){
00194 v = get_vlc2(gb, aic_mode2_vlc[k].table, AIC_MODE2_BITS, 2);
00195 *ptr++ = v/9;
00196 *ptr++ = v%9;
00197 j++;
00198 }else{
00199 if(B != -1 && C != -1)
00200 v = get_vlc2(gb, aic_mode1_vlc[B + C*10].table, AIC_MODE1_BITS, 1);
00201 else{
00202 v = 0;
00203 switch(C){
00204 case -1:
00205 if(B < 2)
00206 v = get_bits1(gb) ^ 1;
00207 break;
00208 case 0:
00209 case 2:
00210 v = (get_bits1(gb) ^ 1) << 1;
00211 break;
00212 }
00213 }
00214 *ptr++ = v;
00215 }
00216 }
00217 }
00218 return 0;
00219 }
00220
00224 static int rv40_decode_mb_info(RV34DecContext *r)
00225 {
00226 MpegEncContext *s = &r->s;
00227 GetBitContext *gb = &s->gb;
00228 int q, i;
00229 int prev_type = 0;
00230 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
00231 int blocks[RV34_MB_TYPES] = {0};
00232 int count = 0;
00233
00234 if(!r->s.mb_skip_run)
00235 r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
00236
00237 if(--r->s.mb_skip_run)
00238 return RV34_MB_SKIP;
00239
00240 if(r->avail_cache[6-1])
00241 blocks[r->mb_type[mb_pos - 1]]++;
00242 if(r->avail_cache[6-4]){
00243 blocks[r->mb_type[mb_pos - s->mb_stride]]++;
00244 if(r->avail_cache[6-2])
00245 blocks[r->mb_type[mb_pos - s->mb_stride + 1]]++;
00246 if(r->avail_cache[6-5])
00247 blocks[r->mb_type[mb_pos - s->mb_stride - 1]]++;
00248 }
00249
00250 for(i = 0; i < RV34_MB_TYPES; i++){
00251 if(blocks[i] > count){
00252 count = blocks[i];
00253 prev_type = i;
00254 }
00255 }
00256 if(s->pict_type == FF_P_TYPE){
00257 prev_type = block_num_to_ptype_vlc_num[prev_type];
00258 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00259 if(q < PBTYPE_ESCAPE)
00260 return q;
00261 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00262 av_log(s->avctx, AV_LOG_ERROR, "Dquant for P-frame\n");
00263 }else{
00264 prev_type = block_num_to_btype_vlc_num[prev_type];
00265 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00266 if(q < PBTYPE_ESCAPE)
00267 return q;
00268 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00269 av_log(s->avctx, AV_LOG_ERROR, "Dquant for B-frame\n");
00270 }
00271 return 0;
00272 }
00273
00274 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
00275
00278 static inline void rv40_weak_loop_filter(uint8_t *src, const int step,
00279 const int filter_p1, const int filter_q1,
00280 const int alpha, const int beta,
00281 const int lim_p0q0,
00282 const int lim_q1, const int lim_p1,
00283 const int diff_p1p0, const int diff_q1q0,
00284 const int diff_p1p2, const int diff_q1q2)
00285 {
00286 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00287 int t, u, diff;
00288
00289 t = src[0*step] - src[-1*step];
00290 if(!t)
00291 return;
00292 u = (alpha * FFABS(t)) >> 7;
00293 if(u > 3 - (filter_p1 && filter_q1))
00294 return;
00295
00296 t <<= 2;
00297 if(filter_p1 && filter_q1)
00298 t += src[-2*step] - src[1*step];
00299 diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
00300 src[-1*step] = cm[src[-1*step] + diff];
00301 src[ 0*step] = cm[src[ 0*step] - diff];
00302 if(FFABS(diff_p1p2) <= beta && filter_p1){
00303 t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
00304 src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
00305 }
00306 if(FFABS(diff_q1q2) <= beta && filter_q1){
00307 t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
00308 src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
00309 }
00310 }
00311
00312 static av_always_inline void rv40_adaptive_loop_filter(uint8_t *src, const int step,
00313 const int stride, const int dmode,
00314 const int lim_q1, const int lim_p1,
00315 const int alpha,
00316 const int beta, const int beta2,
00317 const int chroma, const int edge)
00318 {
00319 int diff_p1p0[4], diff_q1q0[4], diff_p1p2[4], diff_q1q2[4];
00320 int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
00321 uint8_t *ptr;
00322 int flag_strong0 = 1, flag_strong1 = 1;
00323 int filter_p1, filter_q1;
00324 int i;
00325 int lims;
00326
00327 for(i = 0, ptr = src; i < 4; i++, ptr += stride){
00328 diff_p1p0[i] = ptr[-2*step] - ptr[-1*step];
00329 diff_q1q0[i] = ptr[ 1*step] - ptr[ 0*step];
00330 sum_p1p0 += diff_p1p0[i];
00331 sum_q1q0 += diff_q1q0[i];
00332 }
00333 filter_p1 = FFABS(sum_p1p0) < (beta<<2);
00334 filter_q1 = FFABS(sum_q1q0) < (beta<<2);
00335 if(!filter_p1 && !filter_q1)
00336 return;
00337
00338 for(i = 0, ptr = src; i < 4; i++, ptr += stride){
00339 diff_p1p2[i] = ptr[-2*step] - ptr[-3*step];
00340 diff_q1q2[i] = ptr[ 1*step] - ptr[ 2*step];
00341 sum_p1p2 += diff_p1p2[i];
00342 sum_q1q2 += diff_q1q2[i];
00343 }
00344
00345 if(edge){
00346 flag_strong0 = filter_p1 && (FFABS(sum_p1p2) < beta2);
00347 flag_strong1 = filter_q1 && (FFABS(sum_q1q2) < beta2);
00348 }else{
00349 flag_strong0 = flag_strong1 = 0;
00350 }
00351
00352 lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1;
00353 if(flag_strong0 && flag_strong1){
00354 for(i = 0; i < 4; i++, src += stride){
00355 int sflag, p0, q0, p1, q1;
00356 int t = src[0*step] - src[-1*step];
00357
00358 if(!t) continue;
00359 sflag = (alpha * FFABS(t)) >> 7;
00360 if(sflag > 1) continue;
00361
00362 p0 = (25*src[-3*step] + 26*src[-2*step]
00363 + 26*src[-1*step]
00364 + 26*src[ 0*step] + 25*src[ 1*step] + rv40_dither_l[dmode + i]) >> 7;
00365 q0 = (25*src[-2*step] + 26*src[-1*step]
00366 + 26*src[ 0*step]
00367 + 26*src[ 1*step] + 25*src[ 2*step] + rv40_dither_r[dmode + i]) >> 7;
00368 if(sflag){
00369 p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
00370 q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
00371 }
00372 p1 = (25*src[-4*step] + 26*src[-3*step]
00373 + 26*src[-2*step]
00374 + 26*p0 + 25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
00375 q1 = (25*src[-1*step] + 26*q0
00376 + 26*src[ 1*step]
00377 + 26*src[ 2*step] + 25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
00378 if(sflag){
00379 p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
00380 q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
00381 }
00382 src[-2*step] = p1;
00383 src[-1*step] = p0;
00384 src[ 0*step] = q0;
00385 src[ 1*step] = q1;
00386 if(!chroma){
00387 src[-3*step] = (25*src[-1*step] + 26*src[-2*step] + 51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
00388 src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] + 51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
00389 }
00390 }
00391 }else if(filter_p1 && filter_q1){
00392 for(i = 0; i < 4; i++, src += stride)
00393 rv40_weak_loop_filter(src, step, 1, 1, alpha, beta, lims, lim_q1, lim_p1,
00394 diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
00395 }else{
00396 for(i = 0; i < 4; i++, src += stride)
00397 rv40_weak_loop_filter(src, step, filter_p1, filter_q1,
00398 alpha, beta, lims>>1, lim_q1>>1, lim_p1>>1,
00399 diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
00400 }
00401 }
00402
00403 static void rv40_v_loop_filter(uint8_t *src, int stride, int dmode,
00404 int lim_q1, int lim_p1,
00405 int alpha, int beta, int beta2, int chroma, int edge){
00406 rv40_adaptive_loop_filter(src, 1, stride, dmode, lim_q1, lim_p1,
00407 alpha, beta, beta2, chroma, edge);
00408 }
00409 static void rv40_h_loop_filter(uint8_t *src, int stride, int dmode,
00410 int lim_q1, int lim_p1,
00411 int alpha, int beta, int beta2, int chroma, int edge){
00412 rv40_adaptive_loop_filter(src, stride, 1, dmode, lim_q1, lim_p1,
00413 alpha, beta, beta2, chroma, edge);
00414 }
00415
00416 enum RV40BlockPos{
00417 POS_CUR,
00418 POS_TOP,
00419 POS_LEFT,
00420 POS_BOTTOM,
00421 };
00422
00423 #define MASK_CUR 0x0001
00424 #define MASK_RIGHT 0x0008
00425 #define MASK_BOTTOM 0x0010
00426 #define MASK_TOP 0x1000
00427 #define MASK_Y_TOP_ROW 0x000F
00428 #define MASK_Y_LAST_ROW 0xF000
00429 #define MASK_Y_LEFT_COL 0x1111
00430 #define MASK_Y_RIGHT_COL 0x8888
00431 #define MASK_C_TOP_ROW 0x0003
00432 #define MASK_C_LAST_ROW 0x000C
00433 #define MASK_C_LEFT_COL 0x0005
00434 #define MASK_C_RIGHT_COL 0x000A
00435
00436 static const int neighbour_offs_x[4] = { 0, 0, -1, 0 };
00437 static const int neighbour_offs_y[4] = { 0, -1, 0, 1 };
00438
00442 static void rv40_loop_filter(RV34DecContext *r, int row)
00443 {
00444 MpegEncContext *s = &r->s;
00445 int mb_pos, mb_x;
00446 int i, j, k;
00447 uint8_t *Y, *C;
00448 int alpha, beta, betaY, betaC;
00449 int q;
00450 int mbtype[4];
00451
00455 int mb_strong[4];
00456 int clip[4];
00457
00463 int cbp[4];
00468 int uvcbp[4][2];
00474 int mvmasks[4];
00475
00476 mb_pos = row * s->mb_stride;
00477 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00478 int mbtype = s->current_picture_ptr->mb_type[mb_pos];
00479 if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
00480 r->cbp_luma [mb_pos] = r->deblock_coefs[mb_pos] = 0xFFFF;
00481 if(IS_INTRA(mbtype))
00482 r->cbp_chroma[mb_pos] = 0xFF;
00483 }
00484 mb_pos = row * s->mb_stride;
00485 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00486 int y_h_deblock, y_v_deblock;
00487 int c_v_deblock[2], c_h_deblock[2];
00488 int clip_left;
00489 int avail[4];
00490 int y_to_deblock, c_to_deblock[2];
00491
00492 q = s->current_picture_ptr->qscale_table[mb_pos];
00493 alpha = rv40_alpha_tab[q];
00494 beta = rv40_beta_tab [q];
00495 betaY = betaC = beta * 3;
00496 if(s->width * s->height <= 176*144)
00497 betaY += beta;
00498
00499 avail[0] = 1;
00500 avail[1] = row;
00501 avail[2] = mb_x;
00502 avail[3] = row < s->mb_height - 1;
00503 for(i = 0; i < 4; i++){
00504 if(avail[i]){
00505 int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;
00506 mvmasks[i] = r->deblock_coefs[pos];
00507 mbtype [i] = s->current_picture_ptr->mb_type[pos];
00508 cbp [i] = r->cbp_luma[pos];
00509 uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;
00510 uvcbp[i][1] = r->cbp_chroma[pos] >> 4;
00511 }else{
00512 mvmasks[i] = 0;
00513 mbtype [i] = mbtype[0];
00514 cbp [i] = 0;
00515 uvcbp[i][0] = uvcbp[i][1] = 0;
00516 }
00517 mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]);
00518 clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q];
00519 }
00520 y_to_deblock = mvmasks[POS_CUR]
00521 | (mvmasks[POS_BOTTOM] << 16);
00522
00523
00524
00525
00526
00527
00528 y_h_deblock = y_to_deblock
00529 | ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW)
00530 | ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12);
00531
00532
00533
00534
00535
00536
00537 y_v_deblock = y_to_deblock
00538 | ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL)
00539 | ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3);
00540 if(!mb_x)
00541 y_v_deblock &= ~MASK_Y_LEFT_COL;
00542 if(!row)
00543 y_h_deblock &= ~MASK_Y_TOP_ROW;
00544 if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))
00545 y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);
00546
00547
00548
00549 for(i = 0; i < 2; i++){
00550 c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i];
00551 c_v_deblock[i] = c_to_deblock[i]
00552 | ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL)
00553 | ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1);
00554 c_h_deblock[i] = c_to_deblock[i]
00555 | ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2)
00556 | (uvcbp[POS_CUR][i] << 2);
00557 if(!mb_x)
00558 c_v_deblock[i] &= ~MASK_C_LEFT_COL;
00559 if(!row)
00560 c_h_deblock[i] &= ~MASK_C_TOP_ROW;
00561 if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
00562 c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
00563 }
00564
00565 for(j = 0; j < 16; j += 4){
00566 Y = s->current_picture_ptr->data[0] + mb_x*16 + (row*16 + j) * s->linesize;
00567 for(i = 0; i < 4; i++, Y += 4){
00568 int ij = i + j;
00569 int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00570 int dither = j ? ij : i*4;
00571
00572
00573
00574 if(y_h_deblock & (MASK_BOTTOM << ij)){
00575 rv40_h_loop_filter(Y+4*s->linesize, s->linesize, dither,
00576 y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,
00577 clip_cur,
00578 alpha, beta, betaY, 0, 0);
00579 }
00580
00581 if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00582 if(!i)
00583 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00584 else
00585 clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00586 rv40_v_loop_filter(Y, s->linesize, dither,
00587 clip_cur,
00588 clip_left,
00589 alpha, beta, betaY, 0, 0);
00590 }
00591
00592 if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00593 rv40_h_loop_filter(Y, s->linesize, dither,
00594 clip_cur,
00595 mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,
00596 alpha, beta, betaY, 0, 1);
00597 }
00598
00599 if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00600 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00601 rv40_v_loop_filter(Y, s->linesize, dither,
00602 clip_cur,
00603 clip_left,
00604 alpha, beta, betaY, 0, 1);
00605 }
00606 }
00607 }
00608 for(k = 0; k < 2; k++){
00609 for(j = 0; j < 2; j++){
00610 C = s->current_picture_ptr->data[k+1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
00611 for(i = 0; i < 2; i++, C += 4){
00612 int ij = i + j*2;
00613 int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00614 if(c_h_deblock[k] & (MASK_CUR << (ij+2))){
00615 int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0;
00616 rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8,
00617 clip_bot,
00618 clip_cur,
00619 alpha, beta, betaC, 1, 0);
00620 }
00621 if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00622 if(!i)
00623 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00624 else
00625 clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00626 rv40_v_loop_filter(C, s->uvlinesize, j*8,
00627 clip_cur,
00628 clip_left,
00629 alpha, beta, betaC, 1, 0);
00630 }
00631 if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00632 int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;
00633 rv40_h_loop_filter(C, s->uvlinesize, i*8,
00634 clip_cur,
00635 clip_top,
00636 alpha, beta, betaC, 1, 1);
00637 }
00638 if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00639 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00640 rv40_v_loop_filter(C, s->uvlinesize, j*8,
00641 clip_cur,
00642 clip_left,
00643 alpha, beta, betaC, 1, 1);
00644 }
00645 }
00646 }
00647 }
00648 }
00649 }
00650
00654 static av_cold int rv40_decode_init(AVCodecContext *avctx)
00655 {
00656 RV34DecContext *r = avctx->priv_data;
00657
00658 r->rv30 = 0;
00659 ff_rv34_decode_init(avctx);
00660 if(!aic_top_vlc.bits)
00661 rv40_init_tables();
00662 r->parse_slice_header = rv40_parse_slice_header;
00663 r->decode_intra_types = rv40_decode_intra_types;
00664 r->decode_mb_info = rv40_decode_mb_info;
00665 r->loop_filter = rv40_loop_filter;
00666 r->luma_dc_quant_i = rv40_luma_dc_quant[0];
00667 r->luma_dc_quant_p = rv40_luma_dc_quant[1];
00668 return 0;
00669 }
00670
00671 AVCodec ff_rv40_decoder = {
00672 "rv40",
00673 AVMEDIA_TYPE_VIDEO,
00674 CODEC_ID_RV40,
00675 sizeof(RV34DecContext),
00676 rv40_decode_init,
00677 NULL,
00678 ff_rv34_decode_end,
00679 ff_rv34_decode_frame,
00680 CODEC_CAP_DR1 | CODEC_CAP_DELAY,
00681 .flush = ff_mpeg_flush,
00682 .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
00683 .pix_fmts= ff_pixfmt_list_420,
00684 };