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00028 #include <limits.h>
00029
00030 #include "avcodec.h"
00031 #include "dsputil.h"
00032 #include "mpegvideo.h"
00033 #include "h264.h"
00034 #include "rectangle.h"
00035 #include "thread.h"
00036
00037
00038
00039
00040
00041 #undef mb_intra
00042
00043 static void decode_mb(MpegEncContext *s, int ref)
00044 {
00045 s->dest[0] = s->current_picture.f.data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
00046 s->dest[1] = s->current_picture.f.data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
00047 s->dest[2] = s->current_picture.f.data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
00048
00049 if (CONFIG_H264_DECODER && s->codec_id == CODEC_ID_H264) {
00050 H264Context *h = (void*)s;
00051 h->mb_xy = s->mb_x + s->mb_y * s->mb_stride;
00052 memset(h->non_zero_count_cache, 0, sizeof(h->non_zero_count_cache));
00053 assert(ref >= 0);
00054
00055
00056
00057
00058 if (ref >= h->ref_count[0])
00059 ref = 0;
00060 fill_rectangle(&s->current_picture.f.ref_index[0][4 * h->mb_xy],
00061 2, 2, 2, ref, 1);
00062 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
00063 fill_rectangle(h->mv_cache[0][scan8[0]], 4, 4, 8,
00064 pack16to32(s->mv[0][0][0], s->mv[0][0][1]), 4);
00065 assert(!FRAME_MBAFF);
00066 ff_h264_hl_decode_mb(h);
00067 } else {
00068 assert(ref == 0);
00069 MPV_decode_mb(s, s->block);
00070 }
00071 }
00072
00077 static void set_mv_strides(MpegEncContext *s, int *mv_step, int *stride)
00078 {
00079 if (s->codec_id == CODEC_ID_H264) {
00080 H264Context *h = (void*)s;
00081 assert(s->quarter_sample);
00082 *mv_step = 4;
00083 *stride = h->b_stride;
00084 } else {
00085 *mv_step = 2;
00086 *stride = s->b8_stride;
00087 }
00088 }
00089
00093 static void put_dc(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb,
00094 uint8_t *dest_cr, int mb_x, int mb_y)
00095 {
00096 int dc, dcu, dcv, y, i;
00097 for (i = 0; i < 4; i++) {
00098 dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride];
00099 if (dc < 0)
00100 dc = 0;
00101 else if (dc > 2040)
00102 dc = 2040;
00103 for (y = 0; y < 8; y++) {
00104 int x;
00105 for (x = 0; x < 8; x++)
00106 dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * s->linesize] = dc / 8;
00107 }
00108 }
00109 dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride];
00110 dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride];
00111 if (dcu < 0)
00112 dcu = 0;
00113 else if (dcu > 2040)
00114 dcu = 2040;
00115 if (dcv < 0)
00116 dcv = 0;
00117 else if (dcv > 2040)
00118 dcv = 2040;
00119 for (y = 0; y < 8; y++) {
00120 int x;
00121 for (x = 0; x < 8; x++) {
00122 dest_cb[x + y * s->uvlinesize] = dcu / 8;
00123 dest_cr[x + y * s->uvlinesize] = dcv / 8;
00124 }
00125 }
00126 }
00127
00128 static void filter181(int16_t *data, int width, int height, int stride)
00129 {
00130 int x, y;
00131
00132
00133 for (y = 1; y < height - 1; y++) {
00134 int prev_dc = data[0 + y * stride];
00135
00136 for (x = 1; x < width - 1; x++) {
00137 int dc;
00138 dc = -prev_dc +
00139 data[x + y * stride] * 8 -
00140 data[x + 1 + y * stride];
00141 dc = (dc * 10923 + 32768) >> 16;
00142 prev_dc = data[x + y * stride];
00143 data[x + y * stride] = dc;
00144 }
00145 }
00146
00147
00148 for (x = 1; x < width - 1; x++) {
00149 int prev_dc = data[x];
00150
00151 for (y = 1; y < height - 1; y++) {
00152 int dc;
00153
00154 dc = -prev_dc +
00155 data[x + y * stride] * 8 -
00156 data[x + (y + 1) * stride];
00157 dc = (dc * 10923 + 32768) >> 16;
00158 prev_dc = data[x + y * stride];
00159 data[x + y * stride] = dc;
00160 }
00161 }
00162 }
00163
00169 static void guess_dc(MpegEncContext *s, int16_t *dc, int w,
00170 int h, int stride, int is_luma)
00171 {
00172 int b_x, b_y;
00173
00174 for (b_y = 0; b_y < h; b_y++) {
00175 for (b_x = 0; b_x < w; b_x++) {
00176 int color[4] = { 1024, 1024, 1024, 1024 };
00177 int distance[4] = { 9999, 9999, 9999, 9999 };
00178 int mb_index, error, j;
00179 int64_t guess, weight_sum;
00180 mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride;
00181 error = s->error_status_table[mb_index];
00182
00183 if (IS_INTER(s->current_picture.f.mb_type[mb_index]))
00184 continue;
00185 if (!(error & ER_DC_ERROR))
00186 continue;
00187
00188
00189 for (j = b_x + 1; j < w; j++) {
00190 int mb_index_j = (j >> is_luma) + (b_y >> is_luma) * s->mb_stride;
00191 int error_j = s->error_status_table[mb_index_j];
00192 int intra_j = IS_INTRA(s->current_picture.f.mb_type[mb_index_j]);
00193 if (intra_j == 0 || !(error_j & ER_DC_ERROR)) {
00194 color[0] = dc[j + b_y * stride];
00195 distance[0] = j - b_x;
00196 break;
00197 }
00198 }
00199
00200
00201 for (j = b_x - 1; j >= 0; j--) {
00202 int mb_index_j = (j >> is_luma) + (b_y >> is_luma) * s->mb_stride;
00203 int error_j = s->error_status_table[mb_index_j];
00204 int intra_j = IS_INTRA(s->current_picture.f.mb_type[mb_index_j]);
00205 if (intra_j == 0 || !(error_j & ER_DC_ERROR)) {
00206 color[1] = dc[j + b_y * stride];
00207 distance[1] = b_x - j;
00208 break;
00209 }
00210 }
00211
00212
00213 for (j = b_y + 1; j < h; j++) {
00214 int mb_index_j = (b_x >> is_luma) + (j >> is_luma) * s->mb_stride;
00215 int error_j = s->error_status_table[mb_index_j];
00216 int intra_j = IS_INTRA(s->current_picture.f.mb_type[mb_index_j]);
00217
00218 if (intra_j == 0 || !(error_j & ER_DC_ERROR)) {
00219 color[2] = dc[b_x + j * stride];
00220 distance[2] = j - b_y;
00221 break;
00222 }
00223 }
00224
00225
00226 for (j = b_y - 1; j >= 0; j--) {
00227 int mb_index_j = (b_x >> is_luma) + (j >> is_luma) * s->mb_stride;
00228 int error_j = s->error_status_table[mb_index_j];
00229 int intra_j = IS_INTRA(s->current_picture.f.mb_type[mb_index_j]);
00230 if (intra_j == 0 || !(error_j & ER_DC_ERROR)) {
00231 color[3] = dc[b_x + j * stride];
00232 distance[3] = b_y - j;
00233 break;
00234 }
00235 }
00236
00237 weight_sum = 0;
00238 guess = 0;
00239 for (j = 0; j < 4; j++) {
00240 int64_t weight = 256 * 256 * 256 * 16 / distance[j];
00241 guess += weight * (int64_t) color[j];
00242 weight_sum += weight;
00243 }
00244 guess = (guess + weight_sum / 2) / weight_sum;
00245 dc[b_x + b_y * stride] = guess;
00246 }
00247 }
00248 }
00249
00255 static void h_block_filter(MpegEncContext *s, uint8_t *dst, int w,
00256 int h, int stride, int is_luma)
00257 {
00258 int b_x, b_y, mvx_stride, mvy_stride;
00259 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00260 set_mv_strides(s, &mvx_stride, &mvy_stride);
00261 mvx_stride >>= is_luma;
00262 mvy_stride *= mvx_stride;
00263
00264 for (b_y = 0; b_y < h; b_y++) {
00265 for (b_x = 0; b_x < w - 1; b_x++) {
00266 int y;
00267 int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
00268 int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride];
00269 int left_intra = IS_INTRA(s->current_picture.f.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
00270 int right_intra = IS_INTRA(s->current_picture.f.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
00271 int left_damage = left_status & ER_MB_ERROR;
00272 int right_damage = right_status & ER_MB_ERROR;
00273 int offset = b_x * 8 + b_y * stride * 8;
00274 int16_t *left_mv = s->current_picture.f.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
00275 int16_t *right_mv = s->current_picture.f.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)];
00276 if (!(left_damage || right_damage))
00277 continue;
00278 if ((!left_intra) && (!right_intra) &&
00279 FFABS(left_mv[0] - right_mv[0]) +
00280 FFABS(left_mv[1] + right_mv[1]) < 2)
00281 continue;
00282
00283 for (y = 0; y < 8; y++) {
00284 int a, b, c, d;
00285
00286 a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride];
00287 b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride];
00288 c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride];
00289
00290 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
00291 d = FFMAX(d, 0);
00292 if (b < 0)
00293 d = -d;
00294
00295 if (d == 0)
00296 continue;
00297
00298 if (!(left_damage && right_damage))
00299 d = d * 16 / 9;
00300
00301 if (left_damage) {
00302 dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)];
00303 dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)];
00304 dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)];
00305 dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)];
00306 }
00307 if (right_damage) {
00308 dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)];
00309 dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)];
00310 dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)];
00311 dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)];
00312 }
00313 }
00314 }
00315 }
00316 }
00317
00323 static void v_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h,
00324 int stride, int is_luma)
00325 {
00326 int b_x, b_y, mvx_stride, mvy_stride;
00327 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00328 set_mv_strides(s, &mvx_stride, &mvy_stride);
00329 mvx_stride >>= is_luma;
00330 mvy_stride *= mvx_stride;
00331
00332 for (b_y = 0; b_y < h - 1; b_y++) {
00333 for (b_x = 0; b_x < w; b_x++) {
00334 int x;
00335 int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
00336 int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride];
00337 int top_intra = IS_INTRA(s->current_picture.f.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]);
00338 int bottom_intra = IS_INTRA(s->current_picture.f.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]);
00339 int top_damage = top_status & ER_MB_ERROR;
00340 int bottom_damage = bottom_status & ER_MB_ERROR;
00341 int offset = b_x * 8 + b_y * stride * 8;
00342
00343 int16_t *top_mv = s->current_picture.f.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
00344 int16_t *bottom_mv = s->current_picture.f.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x];
00345
00346 if (!(top_damage || bottom_damage))
00347 continue;
00348
00349 if ((!top_intra) && (!bottom_intra) &&
00350 FFABS(top_mv[0] - bottom_mv[0]) +
00351 FFABS(top_mv[1] + bottom_mv[1]) < 2)
00352 continue;
00353
00354 for (x = 0; x < 8; x++) {
00355 int a, b, c, d;
00356
00357 a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride];
00358 b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride];
00359 c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride];
00360
00361 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
00362 d = FFMAX(d, 0);
00363 if (b < 0)
00364 d = -d;
00365
00366 if (d == 0)
00367 continue;
00368
00369 if (!(top_damage && bottom_damage))
00370 d = d * 16 / 9;
00371
00372 if (top_damage) {
00373 dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)];
00374 dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)];
00375 dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)];
00376 dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)];
00377 }
00378 if (bottom_damage) {
00379 dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)];
00380 dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)];
00381 dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)];
00382 dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)];
00383 }
00384 }
00385 }
00386 }
00387 }
00388
00389 static void guess_mv(MpegEncContext *s)
00390 {
00391 uint8_t fixed[s->mb_stride * s->mb_height];
00392 #define MV_FROZEN 3
00393 #define MV_CHANGED 2
00394 #define MV_UNCHANGED 1
00395 const int mb_stride = s->mb_stride;
00396 const int mb_width = s->mb_width;
00397 const int mb_height = s->mb_height;
00398 int i, depth, num_avail;
00399 int mb_x, mb_y, mot_step, mot_stride;
00400
00401 set_mv_strides(s, &mot_step, &mot_stride);
00402
00403 num_avail = 0;
00404 for (i = 0; i < s->mb_num; i++) {
00405 const int mb_xy = s->mb_index2xy[i];
00406 int f = 0;
00407 int error = s->error_status_table[mb_xy];
00408
00409 if (IS_INTRA(s->current_picture.f.mb_type[mb_xy]))
00410 f = MV_FROZEN;
00411 if (!(error & ER_MV_ERROR))
00412 f = MV_FROZEN;
00413
00414 fixed[mb_xy] = f;
00415 if (f == MV_FROZEN)
00416 num_avail++;
00417 }
00418
00419 if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) ||
00420 num_avail <= mb_width / 2) {
00421 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
00422 s->mb_x = 0;
00423 s->mb_y = mb_y;
00424 ff_init_block_index(s);
00425 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
00426 const int mb_xy = mb_x + mb_y * s->mb_stride;
00427
00428 ff_update_block_index(s);
00429
00430 if (IS_INTRA(s->current_picture.f.mb_type[mb_xy]))
00431 continue;
00432 if (!(s->error_status_table[mb_xy] & ER_MV_ERROR))
00433 continue;
00434
00435 s->mv_dir = s->last_picture.f.data[0] ? MV_DIR_FORWARD
00436 : MV_DIR_BACKWARD;
00437 s->mb_intra = 0;
00438 s->mv_type = MV_TYPE_16X16;
00439 s->mb_skipped = 0;
00440
00441 s->dsp.clear_blocks(s->block[0]);
00442
00443 s->mb_x = mb_x;
00444 s->mb_y = mb_y;
00445 s->mv[0][0][0] = 0;
00446 s->mv[0][0][1] = 0;
00447 decode_mb(s, 0);
00448 }
00449 }
00450 return;
00451 }
00452
00453 for (depth = 0; ; depth++) {
00454 int changed, pass, none_left;
00455
00456 none_left = 1;
00457 changed = 1;
00458 for (pass = 0; (changed || pass < 2) && pass < 10; pass++) {
00459 int mb_x, mb_y;
00460 int score_sum = 0;
00461
00462 changed = 0;
00463 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
00464 s->mb_x = 0;
00465 s->mb_y = mb_y;
00466 ff_init_block_index(s);
00467 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
00468 const int mb_xy = mb_x + mb_y * s->mb_stride;
00469 int mv_predictor[8][2] = { { 0 } };
00470 int ref[8] = { 0 };
00471 int pred_count = 0;
00472 int j;
00473 int best_score = 256 * 256 * 256 * 64;
00474 int best_pred = 0;
00475 const int mot_index = (mb_x + mb_y * mot_stride) * mot_step;
00476 int prev_x, prev_y, prev_ref;
00477
00478 ff_update_block_index(s);
00479
00480 if ((mb_x ^ mb_y ^ pass) & 1)
00481 continue;
00482
00483 if (fixed[mb_xy] == MV_FROZEN)
00484 continue;
00485 assert(!IS_INTRA(s->current_picture.f.mb_type[mb_xy]));
00486 assert(s->last_picture_ptr && s->last_picture_ptr->f.data[0]);
00487
00488 j = 0;
00489 if (mb_x > 0 && fixed[mb_xy - 1] == MV_FROZEN)
00490 j = 1;
00491 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] == MV_FROZEN)
00492 j = 1;
00493 if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_FROZEN)
00494 j = 1;
00495 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_FROZEN)
00496 j = 1;
00497 if (j == 0)
00498 continue;
00499
00500 j = 0;
00501 if (mb_x > 0 && fixed[mb_xy - 1 ] == MV_CHANGED)
00502 j = 1;
00503 if (mb_x + 1 < mb_width && fixed[mb_xy + 1 ] == MV_CHANGED)
00504 j = 1;
00505 if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_CHANGED)
00506 j = 1;
00507 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_CHANGED)
00508 j = 1;
00509 if (j == 0 && pass > 1)
00510 continue;
00511
00512 none_left = 0;
00513
00514 if (mb_x > 0 && fixed[mb_xy - 1]) {
00515 mv_predictor[pred_count][0] =
00516 s->current_picture.f.motion_val[0][mot_index - mot_step][0];
00517 mv_predictor[pred_count][1] =
00518 s->current_picture.f.motion_val[0][mot_index - mot_step][1];
00519 ref[pred_count] =
00520 s->current_picture.f.ref_index[0][4 * (mb_xy - 1)];
00521 pred_count++;
00522 }
00523 if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) {
00524 mv_predictor[pred_count][0] =
00525 s->current_picture.f.motion_val[0][mot_index + mot_step][0];
00526 mv_predictor[pred_count][1] =
00527 s->current_picture.f.motion_val[0][mot_index + mot_step][1];
00528 ref[pred_count] =
00529 s->current_picture.f.ref_index[0][4 * (mb_xy + 1)];
00530 pred_count++;
00531 }
00532 if (mb_y > 0 && fixed[mb_xy - mb_stride]) {
00533 mv_predictor[pred_count][0] =
00534 s->current_picture.f.motion_val[0][mot_index - mot_stride * mot_step][0];
00535 mv_predictor[pred_count][1] =
00536 s->current_picture.f.motion_val[0][mot_index - mot_stride * mot_step][1];
00537 ref[pred_count] =
00538 s->current_picture.f.ref_index[0][4 * (mb_xy - s->mb_stride)];
00539 pred_count++;
00540 }
00541 if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride]) {
00542 mv_predictor[pred_count][0] =
00543 s->current_picture.f.motion_val[0][mot_index + mot_stride * mot_step][0];
00544 mv_predictor[pred_count][1] =
00545 s->current_picture.f.motion_val[0][mot_index + mot_stride * mot_step][1];
00546 ref[pred_count] =
00547 s->current_picture.f.ref_index[0][4 * (mb_xy + s->mb_stride)];
00548 pred_count++;
00549 }
00550 if (pred_count == 0)
00551 continue;
00552
00553 if (pred_count > 1) {
00554 int sum_x = 0, sum_y = 0, sum_r = 0;
00555 int max_x, max_y, min_x, min_y, max_r, min_r;
00556
00557 for (j = 0; j < pred_count; j++) {
00558 sum_x += mv_predictor[j][0];
00559 sum_y += mv_predictor[j][1];
00560 sum_r += ref[j];
00561 if (j && ref[j] != ref[j - 1])
00562 goto skip_mean_and_median;
00563 }
00564
00565
00566 mv_predictor[pred_count][0] = sum_x / j;
00567 mv_predictor[pred_count][1] = sum_y / j;
00568 ref[pred_count] = sum_r / j;
00569
00570
00571 if (pred_count >= 3) {
00572 min_y = min_x = min_r = 99999;
00573 max_y = max_x = max_r = -99999;
00574 } else {
00575 min_x = min_y = max_x = max_y = min_r = max_r = 0;
00576 }
00577 for (j = 0; j < pred_count; j++) {
00578 max_x = FFMAX(max_x, mv_predictor[j][0]);
00579 max_y = FFMAX(max_y, mv_predictor[j][1]);
00580 max_r = FFMAX(max_r, ref[j]);
00581 min_x = FFMIN(min_x, mv_predictor[j][0]);
00582 min_y = FFMIN(min_y, mv_predictor[j][1]);
00583 min_r = FFMIN(min_r, ref[j]);
00584 }
00585 mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x;
00586 mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y;
00587 ref[pred_count + 1] = sum_r - max_r - min_r;
00588
00589 if (pred_count == 4) {
00590 mv_predictor[pred_count + 1][0] /= 2;
00591 mv_predictor[pred_count + 1][1] /= 2;
00592 ref[pred_count + 1] /= 2;
00593 }
00594 pred_count += 2;
00595 }
00596
00597 skip_mean_and_median:
00598
00599 pred_count++;
00600
00601 if (!fixed[mb_xy]) {
00602 if (s->avctx->codec_id == CODEC_ID_H264) {
00603
00604 } else {
00605 ff_thread_await_progress((AVFrame *) s->last_picture_ptr,
00606 mb_y, 0);
00607 }
00608 if (!s->last_picture.f.motion_val[0] ||
00609 !s->last_picture.f.ref_index[0])
00610 goto skip_last_mv;
00611 prev_x = s->last_picture.f.motion_val[0][mot_index][0];
00612 prev_y = s->last_picture.f.motion_val[0][mot_index][1];
00613 prev_ref = s->last_picture.f.ref_index[0][4 * mb_xy];
00614 } else {
00615 prev_x = s->current_picture.f.motion_val[0][mot_index][0];
00616 prev_y = s->current_picture.f.motion_val[0][mot_index][1];
00617 prev_ref = s->current_picture.f.ref_index[0][4 * mb_xy];
00618 }
00619
00620
00621 mv_predictor[pred_count][0] = prev_x;
00622 mv_predictor[pred_count][1] = prev_y;
00623 ref[pred_count] = prev_ref;
00624 pred_count++;
00625
00626 skip_last_mv:
00627 s->mv_dir = MV_DIR_FORWARD;
00628 s->mb_intra = 0;
00629 s->mv_type = MV_TYPE_16X16;
00630 s->mb_skipped = 0;
00631
00632 s->dsp.clear_blocks(s->block[0]);
00633
00634 s->mb_x = mb_x;
00635 s->mb_y = mb_y;
00636
00637 for (j = 0; j < pred_count; j++) {
00638 int score = 0;
00639 uint8_t *src = s->current_picture.f.data[0] +
00640 mb_x * 16 + mb_y * 16 * s->linesize;
00641
00642 s->current_picture.f.motion_val[0][mot_index][0] =
00643 s->mv[0][0][0] = mv_predictor[j][0];
00644 s->current_picture.f.motion_val[0][mot_index][1] =
00645 s->mv[0][0][1] = mv_predictor[j][1];
00646
00647
00648 if (ref[j] < 0)
00649 continue;
00650
00651 decode_mb(s, ref[j]);
00652
00653 if (mb_x > 0 && fixed[mb_xy - 1]) {
00654 int k;
00655 for (k = 0; k < 16; k++)
00656 score += FFABS(src[k * s->linesize - 1] -
00657 src[k * s->linesize]);
00658 }
00659 if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) {
00660 int k;
00661 for (k = 0; k < 16; k++)
00662 score += FFABS(src[k * s->linesize + 15] -
00663 src[k * s->linesize + 16]);
00664 }
00665 if (mb_y > 0 && fixed[mb_xy - mb_stride]) {
00666 int k;
00667 for (k = 0; k < 16; k++)
00668 score += FFABS(src[k - s->linesize] - src[k]);
00669 }
00670 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride]) {
00671 int k;
00672 for (k = 0; k < 16; k++)
00673 score += FFABS(src[k + s->linesize * 15] -
00674 src[k + s->linesize * 16]);
00675 }
00676
00677 if (score <= best_score) {
00678 best_score = score;
00679 best_pred = j;
00680 }
00681 }
00682 score_sum += best_score;
00683 s->mv[0][0][0] = mv_predictor[best_pred][0];
00684 s->mv[0][0][1] = mv_predictor[best_pred][1];
00685
00686 for (i = 0; i < mot_step; i++)
00687 for (j = 0; j < mot_step; j++) {
00688 s->current_picture.f.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0];
00689 s->current_picture.f.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1];
00690 }
00691
00692 decode_mb(s, ref[best_pred]);
00693
00694
00695 if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) {
00696 fixed[mb_xy] = MV_CHANGED;
00697 changed++;
00698 } else
00699 fixed[mb_xy] = MV_UNCHANGED;
00700 }
00701 }
00702
00703
00704 }
00705
00706 if (none_left)
00707 return;
00708
00709 for (i = 0; i < s->mb_num; i++) {
00710 int mb_xy = s->mb_index2xy[i];
00711 if (fixed[mb_xy])
00712 fixed[mb_xy] = MV_FROZEN;
00713 }
00714
00715 }
00716 }
00717
00718 static int is_intra_more_likely(MpegEncContext *s)
00719 {
00720 int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
00721
00722 if (!s->last_picture_ptr || !s->last_picture_ptr->f.data[0])
00723 return 1;
00724
00725 undamaged_count = 0;
00726 for (i = 0; i < s->mb_num; i++) {
00727 const int mb_xy = s->mb_index2xy[i];
00728 const int error = s->error_status_table[mb_xy];
00729 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
00730 undamaged_count++;
00731 }
00732
00733 if (s->codec_id == CODEC_ID_H264) {
00734 H264Context *h = (void*) s;
00735 if (h->list_count <= 0 || h->ref_count[0] <= 0 ||
00736 !h->ref_list[0][0].f.data[0])
00737 return 1;
00738 }
00739
00740 if (undamaged_count < 5)
00741 return 0;
00742
00743
00744 if (CONFIG_MPEG_XVMC_DECODER &&
00745 s->avctx->xvmc_acceleration &&
00746 s->pict_type == AV_PICTURE_TYPE_I)
00747 return 1;
00748
00749 skip_amount = FFMAX(undamaged_count / 50, 1);
00750 is_intra_likely = 0;
00751
00752 j = 0;
00753 for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) {
00754 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
00755 int error;
00756 const int mb_xy = mb_x + mb_y * s->mb_stride;
00757
00758 error = s->error_status_table[mb_xy];
00759 if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR))
00760 continue;
00761
00762 j++;
00763
00764 if ((j % skip_amount) != 0)
00765 continue;
00766
00767 if (s->pict_type == AV_PICTURE_TYPE_I) {
00768 uint8_t *mb_ptr = s->current_picture.f.data[0] +
00769 mb_x * 16 + mb_y * 16 * s->linesize;
00770 uint8_t *last_mb_ptr = s->last_picture.f.data[0] +
00771 mb_x * 16 + mb_y * 16 * s->linesize;
00772
00773 if (s->avctx->codec_id == CODEC_ID_H264) {
00774
00775 } else {
00776 ff_thread_await_progress((AVFrame *) s->last_picture_ptr,
00777 mb_y, 0);
00778 }
00779 is_intra_likely += s->dsp.sad[0](NULL, last_mb_ptr, mb_ptr,
00780 s->linesize, 16);
00781 is_intra_likely -= s->dsp.sad[0](NULL, last_mb_ptr,
00782 last_mb_ptr + s->linesize * 16,
00783 s->linesize, 16);
00784 } else {
00785 if (IS_INTRA(s->current_picture.f.mb_type[mb_xy]))
00786 is_intra_likely++;
00787 else
00788 is_intra_likely--;
00789 }
00790 }
00791 }
00792
00793 return is_intra_likely > 0;
00794 }
00795
00796 void ff_er_frame_start(MpegEncContext *s)
00797 {
00798 if (!s->err_recognition)
00799 return;
00800
00801 memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END,
00802 s->mb_stride * s->mb_height * sizeof(uint8_t));
00803 s->error_count = 3 * s->mb_num;
00804 s->error_occurred = 0;
00805 }
00806
00814 void ff_er_add_slice(MpegEncContext *s, int startx, int starty,
00815 int endx, int endy, int status)
00816 {
00817 const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1);
00818 const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num);
00819 const int start_xy = s->mb_index2xy[start_i];
00820 const int end_xy = s->mb_index2xy[end_i];
00821 int mask = -1;
00822
00823 if (s->avctx->hwaccel)
00824 return;
00825
00826 if (start_i > end_i || start_xy > end_xy) {
00827 av_log(s->avctx, AV_LOG_ERROR,
00828 "internal error, slice end before start\n");
00829 return;
00830 }
00831
00832 if (!s->err_recognition)
00833 return;
00834
00835 mask &= ~VP_START;
00836 if (status & (ER_AC_ERROR | ER_AC_END)) {
00837 mask &= ~(ER_AC_ERROR | ER_AC_END);
00838 s->error_count -= end_i - start_i + 1;
00839 }
00840 if (status & (ER_DC_ERROR | ER_DC_END)) {
00841 mask &= ~(ER_DC_ERROR | ER_DC_END);
00842 s->error_count -= end_i - start_i + 1;
00843 }
00844 if (status & (ER_MV_ERROR | ER_MV_END)) {
00845 mask &= ~(ER_MV_ERROR | ER_MV_END);
00846 s->error_count -= end_i - start_i + 1;
00847 }
00848
00849 if (status & ER_MB_ERROR) {
00850 s->error_occurred = 1;
00851 s->error_count = INT_MAX;
00852 }
00853
00854 if (mask == ~0x7F) {
00855 memset(&s->error_status_table[start_xy], 0,
00856 (end_xy - start_xy) * sizeof(uint8_t));
00857 } else {
00858 int i;
00859 for (i = start_xy; i < end_xy; i++)
00860 s->error_status_table[i] &= mask;
00861 }
00862
00863 if (end_i == s->mb_num)
00864 s->error_count = INT_MAX;
00865 else {
00866 s->error_status_table[end_xy] &= mask;
00867 s->error_status_table[end_xy] |= status;
00868 }
00869
00870 s->error_status_table[start_xy] |= VP_START;
00871
00872 if (start_xy > 0 && s->avctx->thread_count <= 1 &&
00873 s->avctx->skip_top * s->mb_width < start_i) {
00874 int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]];
00875
00876 prev_status &= ~ VP_START;
00877 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
00878 s->error_count = INT_MAX;
00879 }
00880 }
00881
00882 void ff_er_frame_end(MpegEncContext *s)
00883 {
00884 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
00885 int distance;
00886 int threshold_part[4] = { 100, 100, 100 };
00887 int threshold = 50;
00888 int is_intra_likely;
00889 int size = s->b8_stride * 2 * s->mb_height;
00890 Picture *pic = s->current_picture_ptr;
00891
00892
00893
00894 if (!s->err_recognition || s->error_count == 0 || s->avctx->lowres ||
00895 s->avctx->hwaccel ||
00896 s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU ||
00897 s->picture_structure != PICT_FRAME ||
00898 s->error_count == 3 * s->mb_width *
00899 (s->avctx->skip_top + s->avctx->skip_bottom)) {
00900 return;
00901 };
00902
00903 if (s->current_picture.f.motion_val[0] == NULL) {
00904 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
00905
00906 for (i = 0; i < 2; i++) {
00907 pic->f.ref_index[i] = av_mallocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t));
00908 pic->motion_val_base[i] = av_mallocz((size + 4) * 2 * sizeof(uint16_t));
00909 pic->f.motion_val[i] = pic->motion_val_base[i] + 4;
00910 }
00911 pic->f.motion_subsample_log2 = 3;
00912 s->current_picture = *s->current_picture_ptr;
00913 }
00914
00915 if (s->avctx->debug & FF_DEBUG_ER) {
00916 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
00917 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
00918 int status = s->error_status_table[mb_x + mb_y * s->mb_stride];
00919
00920 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
00921 }
00922 av_log(s->avctx, AV_LOG_DEBUG, "\n");
00923 }
00924 }
00925
00926
00927 for (error_type = 1; error_type <= 3; error_type++) {
00928 int end_ok = 0;
00929
00930 for (i = s->mb_num - 1; i >= 0; i--) {
00931 const int mb_xy = s->mb_index2xy[i];
00932 int error = s->error_status_table[mb_xy];
00933
00934 if (error & (1 << error_type))
00935 end_ok = 1;
00936 if (error & (8 << error_type))
00937 end_ok = 1;
00938
00939 if (!end_ok)
00940 s->error_status_table[mb_xy] |= 1 << error_type;
00941
00942 if (error & VP_START)
00943 end_ok = 0;
00944 }
00945 }
00946
00947
00948 if (s->partitioned_frame) {
00949 int end_ok = 0;
00950
00951 for (i = s->mb_num - 1; i >= 0; i--) {
00952 const int mb_xy = s->mb_index2xy[i];
00953 int error = s->error_status_table[mb_xy];
00954
00955 if (error & ER_AC_END)
00956 end_ok = 0;
00957 if ((error & ER_MV_END) ||
00958 (error & ER_DC_END) ||
00959 (error & ER_AC_ERROR))
00960 end_ok = 1;
00961
00962 if (!end_ok)
00963 s->error_status_table[mb_xy]|= ER_AC_ERROR;
00964
00965 if (error & VP_START)
00966 end_ok = 0;
00967 }
00968 }
00969
00970
00971 if (s->err_recognition & AV_EF_EXPLODE) {
00972 int end_ok = 1;
00973
00974
00975 for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) {
00976 const int mb_xy = s->mb_index2xy[i];
00977 int error1 = s->error_status_table[mb_xy];
00978 int error2 = s->error_status_table[s->mb_index2xy[i + 1]];
00979
00980 if (error1 & VP_START)
00981 end_ok = 1;
00982
00983 if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) &&
00984 error1 != (VP_START | ER_MB_ERROR | ER_MB_END) &&
00985 ((error1 & ER_AC_END) || (error1 & ER_DC_END) ||
00986 (error1 & ER_MV_END))) {
00987
00988 end_ok = 0;
00989 }
00990
00991 if (!end_ok)
00992 s->error_status_table[mb_xy] |= ER_MB_ERROR;
00993 }
00994 }
00995
00996
00997 distance = 9999999;
00998 for (error_type = 1; error_type <= 3; error_type++) {
00999 for (i = s->mb_num - 1; i >= 0; i--) {
01000 const int mb_xy = s->mb_index2xy[i];
01001 int error = s->error_status_table[mb_xy];
01002
01003 if (!s->mbskip_table[mb_xy])
01004 distance++;
01005 if (error & (1 << error_type))
01006 distance = 0;
01007
01008 if (s->partitioned_frame) {
01009 if (distance < threshold_part[error_type - 1])
01010 s->error_status_table[mb_xy] |= 1 << error_type;
01011 } else {
01012 if (distance < threshold)
01013 s->error_status_table[mb_xy] |= 1 << error_type;
01014 }
01015
01016 if (error & VP_START)
01017 distance = 9999999;
01018 }
01019 }
01020
01021
01022 error = 0;
01023 for (i = 0; i < s->mb_num; i++) {
01024 const int mb_xy = s->mb_index2xy[i];
01025 int old_error = s->error_status_table[mb_xy];
01026
01027 if (old_error & VP_START) {
01028 error = old_error & ER_MB_ERROR;
01029 } else {
01030 error |= old_error & ER_MB_ERROR;
01031 s->error_status_table[mb_xy] |= error;
01032 }
01033 }
01034
01035
01036 if (!s->partitioned_frame) {
01037 for (i = 0; i < s->mb_num; i++) {
01038 const int mb_xy = s->mb_index2xy[i];
01039 error = s->error_status_table[mb_xy];
01040 if (error & ER_MB_ERROR)
01041 error |= ER_MB_ERROR;
01042 s->error_status_table[mb_xy] = error;
01043 }
01044 }
01045
01046 dc_error = ac_error = mv_error = 0;
01047 for (i = 0; i < s->mb_num; i++) {
01048 const int mb_xy = s->mb_index2xy[i];
01049 error = s->error_status_table[mb_xy];
01050 if (error & ER_DC_ERROR)
01051 dc_error++;
01052 if (error & ER_AC_ERROR)
01053 ac_error++;
01054 if (error & ER_MV_ERROR)
01055 mv_error++;
01056 }
01057 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors\n",
01058 dc_error, ac_error, mv_error);
01059
01060 is_intra_likely = is_intra_more_likely(s);
01061
01062
01063 for (i = 0; i < s->mb_num; i++) {
01064 const int mb_xy = s->mb_index2xy[i];
01065 error = s->error_status_table[mb_xy];
01066 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
01067 continue;
01068
01069 if (is_intra_likely)
01070 s->current_picture.f.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
01071 else
01072 s->current_picture.f.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0;
01073 }
01074
01075
01076 if (!s->last_picture.f.data[0] && !s->next_picture.f.data[0])
01077 for (i = 0; i < s->mb_num; i++) {
01078 const int mb_xy = s->mb_index2xy[i];
01079 if (!IS_INTRA(s->current_picture.f.mb_type[mb_xy]))
01080 s->current_picture.f.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
01081 }
01082
01083
01084 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
01085 s->mb_x = 0;
01086 s->mb_y = mb_y;
01087 ff_init_block_index(s);
01088 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
01089 const int mb_xy = mb_x + mb_y * s->mb_stride;
01090 const int mb_type = s->current_picture.f.mb_type[mb_xy];
01091 int dir = !s->last_picture.f.data[0];
01092
01093 ff_update_block_index(s);
01094
01095 error = s->error_status_table[mb_xy];
01096
01097 if (IS_INTRA(mb_type))
01098 continue;
01099 if (error & ER_MV_ERROR)
01100 continue;
01101 if (!(error & ER_AC_ERROR))
01102 continue;
01103
01104 s->mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD;
01105 s->mb_intra = 0;
01106 s->mb_skipped = 0;
01107 if (IS_8X8(mb_type)) {
01108 int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride;
01109 int j;
01110 s->mv_type = MV_TYPE_8X8;
01111 for (j = 0; j < 4; j++) {
01112 s->mv[0][j][0] = s->current_picture.f.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0];
01113 s->mv[0][j][1] = s->current_picture.f.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1];
01114 }
01115 } else {
01116 s->mv_type = MV_TYPE_16X16;
01117 s->mv[0][0][0] = s->current_picture.f.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0];
01118 s->mv[0][0][1] = s->current_picture.f.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1];
01119 }
01120
01121 s->dsp.clear_blocks(s->block[0]);
01122
01123 s->mb_x = mb_x;
01124 s->mb_y = mb_y;
01125 decode_mb(s, 0 );
01126 }
01127 }
01128
01129
01130 if (s->pict_type == AV_PICTURE_TYPE_B) {
01131 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
01132 s->mb_x = 0;
01133 s->mb_y = mb_y;
01134 ff_init_block_index(s);
01135 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
01136 int xy = mb_x * 2 + mb_y * 2 * s->b8_stride;
01137 const int mb_xy = mb_x + mb_y * s->mb_stride;
01138 const int mb_type = s->current_picture.f.mb_type[mb_xy];
01139
01140 ff_update_block_index(s);
01141
01142 error = s->error_status_table[mb_xy];
01143
01144 if (IS_INTRA(mb_type))
01145 continue;
01146 if (!(error & ER_MV_ERROR))
01147 continue;
01148 if (!(error & ER_AC_ERROR))
01149 continue;
01150
01151 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
01152 if (!s->last_picture.f.data[0])
01153 s->mv_dir &= ~MV_DIR_FORWARD;
01154 if (!s->next_picture.f.data[0])
01155 s->mv_dir &= ~MV_DIR_BACKWARD;
01156 s->mb_intra = 0;
01157 s->mv_type = MV_TYPE_16X16;
01158 s->mb_skipped = 0;
01159
01160 if (s->pp_time) {
01161 int time_pp = s->pp_time;
01162 int time_pb = s->pb_time;
01163
01164 if (s->avctx->codec_id == CODEC_ID_H264) {
01165
01166 } else {
01167 ff_thread_await_progress((AVFrame *) s->next_picture_ptr, mb_y, 0);
01168 }
01169 s->mv[0][0][0] = s->next_picture.f.motion_val[0][xy][0] * time_pb / time_pp;
01170 s->mv[0][0][1] = s->next_picture.f.motion_val[0][xy][1] * time_pb / time_pp;
01171 s->mv[1][0][0] = s->next_picture.f.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp;
01172 s->mv[1][0][1] = s->next_picture.f.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp;
01173 } else {
01174 s->mv[0][0][0] = 0;
01175 s->mv[0][0][1] = 0;
01176 s->mv[1][0][0] = 0;
01177 s->mv[1][0][1] = 0;
01178 }
01179
01180 s->dsp.clear_blocks(s->block[0]);
01181 s->mb_x = mb_x;
01182 s->mb_y = mb_y;
01183 decode_mb(s, 0);
01184 }
01185 }
01186 } else
01187 guess_mv(s);
01188
01189
01190 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
01191 goto ec_clean;
01192
01193 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
01194 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
01195 int dc, dcu, dcv, y, n;
01196 int16_t *dc_ptr;
01197 uint8_t *dest_y, *dest_cb, *dest_cr;
01198 const int mb_xy = mb_x + mb_y * s->mb_stride;
01199 const int mb_type = s->current_picture.f.mb_type[mb_xy];
01200
01201 error = s->error_status_table[mb_xy];
01202
01203 if (IS_INTRA(mb_type) && s->partitioned_frame)
01204 continue;
01205
01206
01207
01208 dest_y = s->current_picture.f.data[0] + mb_x * 16 + mb_y * 16 * s->linesize;
01209 dest_cb = s->current_picture.f.data[1] + mb_x * 8 + mb_y * 8 * s->uvlinesize;
01210 dest_cr = s->current_picture.f.data[2] + mb_x * 8 + mb_y * 8 * s->uvlinesize;
01211
01212 dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride];
01213 for (n = 0; n < 4; n++) {
01214 dc = 0;
01215 for (y = 0; y < 8; y++) {
01216 int x;
01217 for (x = 0; x < 8; x++)
01218 dc += dest_y[x + (n & 1) * 8 +
01219 (y + (n >> 1) * 8) * s->linesize];
01220 }
01221 dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3;
01222 }
01223
01224 dcu = dcv = 0;
01225 for (y = 0; y < 8; y++) {
01226 int x;
01227 for (x = 0; x < 8; x++) {
01228 dcu += dest_cb[x + y * s->uvlinesize];
01229 dcv += dest_cr[x + y * s->uvlinesize];
01230 }
01231 }
01232 s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3;
01233 s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3;
01234 }
01235 }
01236
01237
01238 guess_dc(s, s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride, 1);
01239 guess_dc(s, s->dc_val[1], s->mb_width, s->mb_height, s->mb_stride, 0);
01240 guess_dc(s, s->dc_val[2], s->mb_width, s->mb_height, s->mb_stride, 0);
01241
01242
01243 filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride);
01244
01245
01246 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
01247 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
01248 uint8_t *dest_y, *dest_cb, *dest_cr;
01249 const int mb_xy = mb_x + mb_y * s->mb_stride;
01250 const int mb_type = s->current_picture.f.mb_type[mb_xy];
01251
01252 error = s->error_status_table[mb_xy];
01253
01254 if (IS_INTER(mb_type))
01255 continue;
01256 if (!(error & ER_AC_ERROR))
01257 continue;
01258
01259 dest_y = s->current_picture.f.data[0] + mb_x * 16 + mb_y * 16 * s->linesize;
01260 dest_cb = s->current_picture.f.data[1] + mb_x * 8 + mb_y * 8 * s->uvlinesize;
01261 dest_cr = s->current_picture.f.data[2] + mb_x * 8 + mb_y * 8 * s->uvlinesize;
01262
01263 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
01264 }
01265 }
01266
01267 if (s->avctx->error_concealment & FF_EC_DEBLOCK) {
01268
01269 h_block_filter(s, s->current_picture.f.data[0], s->mb_width * 2,
01270 s->mb_height * 2, s->linesize, 1);
01271 h_block_filter(s, s->current_picture.f.data[1], s->mb_width,
01272 s->mb_height , s->uvlinesize, 0);
01273 h_block_filter(s, s->current_picture.f.data[2], s->mb_width,
01274 s->mb_height , s->uvlinesize, 0);
01275
01276
01277 v_block_filter(s, s->current_picture.f.data[0], s->mb_width * 2,
01278 s->mb_height * 2, s->linesize, 1);
01279 v_block_filter(s, s->current_picture.f.data[1], s->mb_width,
01280 s->mb_height , s->uvlinesize, 0);
01281 v_block_filter(s, s->current_picture.f.data[2], s->mb_width,
01282 s->mb_height , s->uvlinesize, 0);
01283 }
01284
01285 ec_clean:
01286
01287 for (i = 0; i < s->mb_num; i++) {
01288 const int mb_xy = s->mb_index2xy[i];
01289 int error = s->error_status_table[mb_xy];
01290
01291 if (s->pict_type != AV_PICTURE_TYPE_B &&
01292 (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) {
01293 s->mbskip_table[mb_xy] = 0;
01294 }
01295 s->mbintra_table[mb_xy] = 1;
01296 }
01297 }