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00027 #include "avcodec.h"
00028 #include "dsputil.h"
00029 #include "mpegvideo.h"
00030 #include "golomb.h"
00031
00032 #include "rv34.h"
00033 #include "rv40vlc2.h"
00034 #include "rv40data.h"
00035
00036 static VLC aic_top_vlc;
00037 static VLC aic_mode1_vlc[AIC_MODE1_NUM], aic_mode2_vlc[AIC_MODE2_NUM];
00038 static VLC ptype_vlc[NUM_PTYPE_VLCS], btype_vlc[NUM_BTYPE_VLCS];
00039
00040 static const int16_t mode2_offs[] = {
00041 0, 614, 1222, 1794, 2410, 3014, 3586, 4202, 4792, 5382, 5966, 6542,
00042 7138, 7716, 8292, 8864, 9444, 10030, 10642, 11212, 11814
00043 };
00044
00048 static av_cold void rv40_init_tables(void)
00049 {
00050 int i;
00051 static VLC_TYPE aic_table[1 << AIC_TOP_BITS][2];
00052 static VLC_TYPE aic_mode1_table[AIC_MODE1_NUM << AIC_MODE1_BITS][2];
00053 static VLC_TYPE aic_mode2_table[11814][2];
00054 static VLC_TYPE ptype_table[NUM_PTYPE_VLCS << PTYPE_VLC_BITS][2];
00055 static VLC_TYPE btype_table[NUM_BTYPE_VLCS << BTYPE_VLC_BITS][2];
00056
00057 aic_top_vlc.table = aic_table;
00058 aic_top_vlc.table_allocated = 1 << AIC_TOP_BITS;
00059 init_vlc(&aic_top_vlc, AIC_TOP_BITS, AIC_TOP_SIZE,
00060 rv40_aic_top_vlc_bits, 1, 1,
00061 rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
00062 for(i = 0; i < AIC_MODE1_NUM; i++){
00063
00064 if((i % 10) == 9) continue;
00065 aic_mode1_vlc[i].table = &aic_mode1_table[i << AIC_MODE1_BITS];
00066 aic_mode1_vlc[i].table_allocated = 1 << AIC_MODE1_BITS;
00067 init_vlc(&aic_mode1_vlc[i], AIC_MODE1_BITS, AIC_MODE1_SIZE,
00068 aic_mode1_vlc_bits[i], 1, 1,
00069 aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
00070 }
00071 for(i = 0; i < AIC_MODE2_NUM; i++){
00072 aic_mode2_vlc[i].table = &aic_mode2_table[mode2_offs[i]];
00073 aic_mode2_vlc[i].table_allocated = mode2_offs[i + 1] - mode2_offs[i];
00074 init_vlc(&aic_mode2_vlc[i], AIC_MODE2_BITS, AIC_MODE2_SIZE,
00075 aic_mode2_vlc_bits[i], 1, 1,
00076 aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
00077 }
00078 for(i = 0; i < NUM_PTYPE_VLCS; i++){
00079 ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS];
00080 ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS;
00081 init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
00082 ptype_vlc_bits[i], 1, 1,
00083 ptype_vlc_codes[i], 1, 1,
00084 ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00085 }
00086 for(i = 0; i < NUM_BTYPE_VLCS; i++){
00087 btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS];
00088 btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS;
00089 init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
00090 btype_vlc_bits[i], 1, 1,
00091 btype_vlc_codes[i], 1, 1,
00092 btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
00093 }
00094 }
00095
00102 static int get_dimension(GetBitContext *gb, const int *dim)
00103 {
00104 int t = get_bits(gb, 3);
00105 int val = dim[t];
00106 if(val < 0)
00107 val = dim[get_bits1(gb) - val];
00108 if(!val){
00109 do{
00110 t = get_bits(gb, 8);
00111 val += t << 2;
00112 }while(t == 0xFF);
00113 }
00114 return val;
00115 }
00116
00120 static void rv40_parse_picture_size(GetBitContext *gb, int *w, int *h)
00121 {
00122 *w = get_dimension(gb, rv40_standard_widths);
00123 *h = get_dimension(gb, rv40_standard_heights);
00124 }
00125
00126 static int rv40_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceInfo *si)
00127 {
00128 int mb_bits;
00129 int w = r->s.width, h = r->s.height;
00130 int mb_size;
00131
00132 memset(si, 0, sizeof(SliceInfo));
00133 if(get_bits1(gb))
00134 return -1;
00135 si->type = get_bits(gb, 2);
00136 if(si->type == 1) si->type = 0;
00137 si->quant = get_bits(gb, 5);
00138 if(get_bits(gb, 2))
00139 return -1;
00140 si->vlc_set = get_bits(gb, 2);
00141 skip_bits1(gb);
00142 si->pts = get_bits(gb, 13);
00143 if(!si->type || !get_bits1(gb))
00144 rv40_parse_picture_size(gb, &w, &h);
00145 if(avcodec_check_dimensions(r->s.avctx, w, h) < 0)
00146 return -1;
00147 si->width = w;
00148 si->height = h;
00149 mb_size = ((w + 15) >> 4) * ((h + 15) >> 4);
00150 mb_bits = ff_rv34_get_start_offset(gb, mb_size);
00151 si->start = get_bits(gb, mb_bits);
00152
00153 return 0;
00154 }
00155
00159 static int rv40_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t *dst)
00160 {
00161 MpegEncContext *s = &r->s;
00162 int i, j, k, v;
00163 int A, B, C;
00164 int pattern;
00165 int8_t *ptr;
00166
00167 for(i = 0; i < 4; i++, dst += r->intra_types_stride){
00168 if(!i && s->first_slice_line){
00169 pattern = get_vlc2(gb, aic_top_vlc.table, AIC_TOP_BITS, 1);
00170 dst[0] = (pattern >> 2) & 2;
00171 dst[1] = (pattern >> 1) & 2;
00172 dst[2] = pattern & 2;
00173 dst[3] = (pattern << 1) & 2;
00174 continue;
00175 }
00176 ptr = dst;
00177 for(j = 0; j < 4; j++){
00178
00179
00180
00181
00182
00183
00184 A = ptr[-r->intra_types_stride + 1];
00185 B = ptr[-r->intra_types_stride];
00186 C = ptr[-1];
00187 pattern = A + (B << 4) + (C << 8);
00188 for(k = 0; k < MODE2_PATTERNS_NUM; k++)
00189 if(pattern == rv40_aic_table_index[k])
00190 break;
00191 if(j < 3 && k < MODE2_PATTERNS_NUM){
00192 v = get_vlc2(gb, aic_mode2_vlc[k].table, AIC_MODE2_BITS, 2);
00193 *ptr++ = v/9;
00194 *ptr++ = v%9;
00195 j++;
00196 }else{
00197 if(B != -1 && C != -1)
00198 v = get_vlc2(gb, aic_mode1_vlc[B + C*10].table, AIC_MODE1_BITS, 1);
00199 else{
00200 v = 0;
00201 switch(C){
00202 case -1:
00203 if(B < 2)
00204 v = get_bits1(gb) ^ 1;
00205 break;
00206 case 0:
00207 case 2:
00208 v = (get_bits1(gb) ^ 1) << 1;
00209 break;
00210 }
00211 }
00212 *ptr++ = v;
00213 }
00214 }
00215 }
00216 return 0;
00217 }
00218
00222 static int rv40_decode_mb_info(RV34DecContext *r)
00223 {
00224 MpegEncContext *s = &r->s;
00225 GetBitContext *gb = &s->gb;
00226 int q, i;
00227 int prev_type = 0;
00228 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
00229 int blocks[RV34_MB_TYPES] = {0};
00230 int count = 0;
00231
00232 if(!r->s.mb_skip_run)
00233 r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
00234
00235 if(--r->s.mb_skip_run)
00236 return RV34_MB_SKIP;
00237
00238 if(r->avail_cache[6-1])
00239 blocks[r->mb_type[mb_pos - 1]]++;
00240 if(r->avail_cache[6-4]){
00241 blocks[r->mb_type[mb_pos - s->mb_stride]]++;
00242 if(r->avail_cache[6-2])
00243 blocks[r->mb_type[mb_pos - s->mb_stride + 1]]++;
00244 if(r->avail_cache[6-5])
00245 blocks[r->mb_type[mb_pos - s->mb_stride - 1]]++;
00246 }
00247
00248 for(i = 0; i < RV34_MB_TYPES; i++){
00249 if(blocks[i] > count){
00250 count = blocks[i];
00251 prev_type = i;
00252 }
00253 }
00254 if(s->pict_type == FF_P_TYPE){
00255 prev_type = block_num_to_ptype_vlc_num[prev_type];
00256 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00257 if(q < PBTYPE_ESCAPE)
00258 return q;
00259 q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
00260 av_log(s->avctx, AV_LOG_ERROR, "Dquant for P-frame\n");
00261 }else{
00262 prev_type = block_num_to_btype_vlc_num[prev_type];
00263 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00264 if(q < PBTYPE_ESCAPE)
00265 return q;
00266 q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1);
00267 av_log(s->avctx, AV_LOG_ERROR, "Dquant for B-frame\n");
00268 }
00269 return 0;
00270 }
00271
00272 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
00273
00276 static inline void rv40_weak_loop_filter(uint8_t *src, const int step,
00277 const int filter_p1, const int filter_q1,
00278 const int alpha, const int beta,
00279 const int lim_p0q0,
00280 const int lim_q1, const int lim_p1,
00281 const int diff_p1p0, const int diff_q1q0,
00282 const int diff_p1p2, const int diff_q1q2)
00283 {
00284 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00285 int t, u, diff;
00286
00287 t = src[0*step] - src[-1*step];
00288 if(!t)
00289 return;
00290 u = (alpha * FFABS(t)) >> 7;
00291 if(u > 3 - (filter_p1 && filter_q1))
00292 return;
00293
00294 t <<= 2;
00295 if(filter_p1 && filter_q1)
00296 t += src[-2*step] - src[1*step];
00297 diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
00298 src[-1*step] = cm[src[-1*step] + diff];
00299 src[ 0*step] = cm[src[ 0*step] - diff];
00300 if(FFABS(diff_p1p2) <= beta && filter_p1){
00301 t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
00302 src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
00303 }
00304 if(FFABS(diff_q1q2) <= beta && filter_q1){
00305 t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
00306 src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
00307 }
00308 }
00309
00310 static inline void rv40_adaptive_loop_filter(uint8_t *src, const int step,
00311 const int stride, const int dmode,
00312 const int lim_q1, const int lim_p1,
00313 const int alpha,
00314 const int beta, const int beta2,
00315 const int chroma, const int edge)
00316 {
00317 int diff_p1p0[4], diff_q1q0[4], diff_p1p2[4], diff_q1q2[4];
00318 int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
00319 uint8_t *ptr;
00320 int flag_strong0 = 1, flag_strong1 = 1;
00321 int filter_p1, filter_q1;
00322 int i;
00323 int lims;
00324
00325 for(i = 0, ptr = src; i < 4; i++, ptr += stride){
00326 diff_p1p0[i] = ptr[-2*step] - ptr[-1*step];
00327 diff_q1q0[i] = ptr[ 1*step] - ptr[ 0*step];
00328 sum_p1p0 += diff_p1p0[i];
00329 sum_q1q0 += diff_q1q0[i];
00330 }
00331 filter_p1 = FFABS(sum_p1p0) < (beta<<2);
00332 filter_q1 = FFABS(sum_q1q0) < (beta<<2);
00333 if(!filter_p1 && !filter_q1)
00334 return;
00335
00336 for(i = 0, ptr = src; i < 4; i++, ptr += stride){
00337 diff_p1p2[i] = ptr[-2*step] - ptr[-3*step];
00338 diff_q1q2[i] = ptr[ 1*step] - ptr[ 2*step];
00339 sum_p1p2 += diff_p1p2[i];
00340 sum_q1q2 += diff_q1q2[i];
00341 }
00342
00343 if(edge){
00344 flag_strong0 = filter_p1 && (FFABS(sum_p1p2) < beta2);
00345 flag_strong1 = filter_q1 && (FFABS(sum_q1q2) < beta2);
00346 }else{
00347 flag_strong0 = flag_strong1 = 0;
00348 }
00349
00350 lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1;
00351 if(flag_strong0 && flag_strong1){
00352 for(i = 0; i < 4; i++, src += stride){
00353 int sflag, p0, q0, p1, q1;
00354 int t = src[0*step] - src[-1*step];
00355
00356 if(!t) continue;
00357 sflag = (alpha * FFABS(t)) >> 7;
00358 if(sflag > 1) continue;
00359
00360 p0 = (25*src[-3*step] + 26*src[-2*step]
00361 + 26*src[-1*step]
00362 + 26*src[ 0*step] + 25*src[ 1*step] + rv40_dither_l[dmode + i]) >> 7;
00363 q0 = (25*src[-2*step] + 26*src[-1*step]
00364 + 26*src[ 0*step]
00365 + 26*src[ 1*step] + 25*src[ 2*step] + rv40_dither_r[dmode + i]) >> 7;
00366 if(sflag){
00367 p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
00368 q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
00369 }
00370 p1 = (25*src[-4*step] + 26*src[-3*step]
00371 + 26*src[-2*step]
00372 + 26*p0 + 25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
00373 q1 = (25*src[-1*step] + 26*q0
00374 + 26*src[ 1*step]
00375 + 26*src[ 2*step] + 25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
00376 if(sflag){
00377 p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
00378 q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
00379 }
00380 src[-2*step] = p1;
00381 src[-1*step] = p0;
00382 src[ 0*step] = q0;
00383 src[ 1*step] = q1;
00384 if(!chroma){
00385 src[-3*step] = (25*src[-1*step] + 26*src[-2*step] + 51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
00386 src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] + 51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
00387 }
00388 }
00389 }else if(filter_p1 && filter_q1){
00390 for(i = 0; i < 4; i++, src += stride)
00391 rv40_weak_loop_filter(src, step, 1, 1, alpha, beta, lims, lim_q1, lim_p1,
00392 diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
00393 }else{
00394 for(i = 0; i < 4; i++, src += stride)
00395 rv40_weak_loop_filter(src, step, filter_p1, filter_q1,
00396 alpha, beta, lims>>1, lim_q1>>1, lim_p1>>1,
00397 diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
00398 }
00399 }
00400
00401 static void rv40_v_loop_filter(uint8_t *src, int stride, int dmode,
00402 int lim_q1, int lim_p1,
00403 int alpha, int beta, int beta2, int chroma, int edge){
00404 rv40_adaptive_loop_filter(src, 1, stride, dmode, lim_q1, lim_p1,
00405 alpha, beta, beta2, chroma, edge);
00406 }
00407 static void rv40_h_loop_filter(uint8_t *src, int stride, int dmode,
00408 int lim_q1, int lim_p1,
00409 int alpha, int beta, int beta2, int chroma, int edge){
00410 rv40_adaptive_loop_filter(src, stride, 1, dmode, lim_q1, lim_p1,
00411 alpha, beta, beta2, chroma, edge);
00412 }
00413
00414 enum RV40BlockPos{
00415 POS_CUR,
00416 POS_TOP,
00417 POS_LEFT,
00418 POS_BOTTOM,
00419 };
00420
00421 #define MASK_CUR 0x0001
00422 #define MASK_RIGHT 0x0008
00423 #define MASK_BOTTOM 0x0010
00424 #define MASK_TOP 0x1000
00425 #define MASK_Y_TOP_ROW 0x000F
00426 #define MASK_Y_LAST_ROW 0xF000
00427 #define MASK_Y_LEFT_COL 0x1111
00428 #define MASK_Y_RIGHT_COL 0x8888
00429 #define MASK_C_TOP_ROW 0x0003
00430 #define MASK_C_LAST_ROW 0x000C
00431 #define MASK_C_LEFT_COL 0x0005
00432 #define MASK_C_RIGHT_COL 0x000A
00433
00434 static const int neighbour_offs_x[4] = { 0, 0, -1, 0 };
00435 static const int neighbour_offs_y[4] = { 0, -1, 0, 1 };
00436
00440 static void rv40_loop_filter(RV34DecContext *r, int row)
00441 {
00442 MpegEncContext *s = &r->s;
00443 int mb_pos, mb_x;
00444 int i, j, k;
00445 uint8_t *Y, *C;
00446 int alpha, beta, betaY, betaC;
00447 int q;
00448 int mbtype[4];
00449
00453 int mb_strong[4];
00454 int clip[4];
00455
00461 int cbp[4];
00466 int uvcbp[4][2];
00472 int mvmasks[4];
00473
00474 mb_pos = row * s->mb_stride;
00475 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00476 int mbtype = s->current_picture_ptr->mb_type[mb_pos];
00477 if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
00478 r->cbp_luma [mb_pos] = r->deblock_coefs[mb_pos] = 0xFFFF;
00479 if(IS_INTRA(mbtype))
00480 r->cbp_chroma[mb_pos] = 0xFF;
00481 }
00482 mb_pos = row * s->mb_stride;
00483 for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
00484 int y_h_deblock, y_v_deblock;
00485 int c_v_deblock[2], c_h_deblock[2];
00486 int clip_left;
00487 int avail[4];
00488 int y_to_deblock, c_to_deblock[2];
00489
00490 q = s->current_picture_ptr->qscale_table[mb_pos];
00491 alpha = rv40_alpha_tab[q];
00492 beta = rv40_beta_tab [q];
00493 betaY = betaC = beta * 3;
00494 if(s->width * s->height <= 176*144)
00495 betaY += beta;
00496
00497 avail[0] = 1;
00498 avail[1] = row;
00499 avail[2] = mb_x;
00500 avail[3] = row < s->mb_height - 1;
00501 for(i = 0; i < 4; i++){
00502 if(avail[i]){
00503 int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;
00504 mvmasks[i] = r->deblock_coefs[pos];
00505 mbtype [i] = s->current_picture_ptr->mb_type[pos];
00506 cbp [i] = r->cbp_luma[pos];
00507 uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;
00508 uvcbp[i][1] = r->cbp_chroma[pos] >> 4;
00509 }else{
00510 mvmasks[i] = 0;
00511 mbtype [i] = mbtype[0];
00512 cbp [i] = 0;
00513 uvcbp[i][0] = uvcbp[i][1] = 0;
00514 }
00515 mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]);
00516 clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q];
00517 }
00518 y_to_deblock = mvmasks[POS_CUR]
00519 | (mvmasks[POS_BOTTOM] << 16);
00520
00521
00522
00523
00524
00525
00526 y_h_deblock = y_to_deblock
00527 | ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW)
00528 | ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12);
00529
00530
00531
00532
00533
00534
00535 y_v_deblock = y_to_deblock
00536 | ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL)
00537 | ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3);
00538 if(!mb_x)
00539 y_v_deblock &= ~MASK_Y_LEFT_COL;
00540 if(!row)
00541 y_h_deblock &= ~MASK_Y_TOP_ROW;
00542 if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))
00543 y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);
00544
00545
00546
00547 for(i = 0; i < 2; i++){
00548 c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i];
00549 c_v_deblock[i] = c_to_deblock[i]
00550 | ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL)
00551 | ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1);
00552 c_h_deblock[i] = c_to_deblock[i]
00553 | ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2)
00554 | (uvcbp[POS_CUR][i] << 2);
00555 if(!mb_x)
00556 c_v_deblock[i] &= ~MASK_C_LEFT_COL;
00557 if(!row)
00558 c_h_deblock[i] &= ~MASK_C_TOP_ROW;
00559 if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
00560 c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
00561 }
00562
00563 for(j = 0; j < 16; j += 4){
00564 Y = s->current_picture_ptr->data[0] + mb_x*16 + (row*16 + j) * s->linesize;
00565 for(i = 0; i < 4; i++, Y += 4){
00566 int ij = i + j;
00567 int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00568 int dither = j ? ij : i*4;
00569
00570
00571
00572 if(y_h_deblock & (MASK_BOTTOM << ij)){
00573 rv40_h_loop_filter(Y+4*s->linesize, s->linesize, dither,
00574 y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,
00575 clip_cur,
00576 alpha, beta, betaY, 0, 0);
00577 }
00578
00579 if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00580 if(!i)
00581 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00582 else
00583 clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00584 rv40_v_loop_filter(Y, s->linesize, dither,
00585 clip_cur,
00586 clip_left,
00587 alpha, beta, betaY, 0, 0);
00588 }
00589
00590 if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00591 rv40_h_loop_filter(Y, s->linesize, dither,
00592 clip_cur,
00593 mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,
00594 alpha, beta, betaY, 0, 1);
00595 }
00596
00597 if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00598 clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
00599 rv40_v_loop_filter(Y, s->linesize, dither,
00600 clip_cur,
00601 clip_left,
00602 alpha, beta, betaY, 0, 1);
00603 }
00604 }
00605 }
00606 for(k = 0; k < 2; k++){
00607 for(j = 0; j < 2; j++){
00608 C = s->current_picture_ptr->data[k+1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
00609 for(i = 0; i < 2; i++, C += 4){
00610 int ij = i + j*2;
00611 int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
00612 if(c_h_deblock[k] & (MASK_CUR << (ij+2))){
00613 int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0;
00614 rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8,
00615 clip_bot,
00616 clip_cur,
00617 alpha, beta, betaC, 1, 0);
00618 }
00619 if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
00620 if(!i)
00621 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00622 else
00623 clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
00624 rv40_v_loop_filter(C, s->uvlinesize, j*8,
00625 clip_cur,
00626 clip_left,
00627 alpha, beta, betaC, 1, 0);
00628 }
00629 if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
00630 int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;
00631 rv40_h_loop_filter(C, s->uvlinesize, i*8,
00632 clip_cur,
00633 clip_top,
00634 alpha, beta, betaC, 1, 1);
00635 }
00636 if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
00637 clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
00638 rv40_v_loop_filter(C, s->uvlinesize, j*8,
00639 clip_cur,
00640 clip_left,
00641 alpha, beta, betaC, 1, 1);
00642 }
00643 }
00644 }
00645 }
00646 }
00647 }
00648
00652 static av_cold int rv40_decode_init(AVCodecContext *avctx)
00653 {
00654 RV34DecContext *r = avctx->priv_data;
00655
00656 r->rv30 = 0;
00657 ff_rv34_decode_init(avctx);
00658 if(!aic_top_vlc.bits)
00659 rv40_init_tables();
00660 r->parse_slice_header = rv40_parse_slice_header;
00661 r->decode_intra_types = rv40_decode_intra_types;
00662 r->decode_mb_info = rv40_decode_mb_info;
00663 r->loop_filter = rv40_loop_filter;
00664 r->luma_dc_quant_i = rv40_luma_dc_quant[0];
00665 r->luma_dc_quant_p = rv40_luma_dc_quant[1];
00666 return 0;
00667 }
00668
00669 AVCodec rv40_decoder = {
00670 "rv40",
00671 AVMEDIA_TYPE_VIDEO,
00672 CODEC_ID_RV40,
00673 sizeof(RV34DecContext),
00674 rv40_decode_init,
00675 NULL,
00676 ff_rv34_decode_end,
00677 ff_rv34_decode_frame,
00678 CODEC_CAP_DR1 | CODEC_CAP_DELAY,
00679 .flush = ff_mpeg_flush,
00680 .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
00681 .pix_fmts= ff_pixfmt_list_420,
00682 };
