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1214 lines
46 KiB
1214 lines
46 KiB
/* |
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* Error resilience / concealment |
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* |
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file |
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* Error resilience / concealment. |
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*/ |
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|
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#include <limits.h> |
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|
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#include "libavutil/internal.h" |
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#include "avcodec.h" |
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#include "error_resilience.h" |
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#include "mpegutils.h" |
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#include "mpegvideo.h" |
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#include "rectangle.h" |
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#include "thread.h" |
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#include "version.h" |
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|
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/** |
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* @param stride the number of MVs to get to the next row |
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* @param mv_step the number of MVs per row or column in a macroblock |
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*/ |
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static void set_mv_strides(ERContext *s, int *mv_step, int *stride) |
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{ |
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if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
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assert(s->quarter_sample); |
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*mv_step = 4; |
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*stride = s->mb_width * 4; |
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} else { |
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*mv_step = 2; |
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*stride = s->b8_stride; |
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} |
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} |
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|
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/** |
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* Replace the current MB with a flat dc-only version. |
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*/ |
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static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb, |
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uint8_t *dest_cr, int mb_x, int mb_y) |
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{ |
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int *linesize = s->cur_pic.f->linesize; |
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int dc, dcu, dcv, y, i; |
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for (i = 0; i < 4; i++) { |
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dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride]; |
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if (dc < 0) |
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dc = 0; |
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else if (dc > 2040) |
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dc = 2040; |
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for (y = 0; y < 8; y++) { |
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int x; |
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for (x = 0; x < 8; x++) |
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dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8; |
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} |
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} |
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dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride]; |
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dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride]; |
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if (dcu < 0) |
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dcu = 0; |
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else if (dcu > 2040) |
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dcu = 2040; |
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if (dcv < 0) |
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dcv = 0; |
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else if (dcv > 2040) |
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dcv = 2040; |
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for (y = 0; y < 8; y++) { |
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int x; |
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for (x = 0; x < 8; x++) { |
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dest_cb[x + y * linesize[1]] = dcu / 8; |
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dest_cr[x + y * linesize[2]] = dcv / 8; |
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} |
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} |
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} |
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|
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static void filter181(int16_t *data, int width, int height, int stride) |
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{ |
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int x, y; |
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|
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/* horizontal filter */ |
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for (y = 1; y < height - 1; y++) { |
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int prev_dc = data[0 + y * stride]; |
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|
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for (x = 1; x < width - 1; x++) { |
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int dc; |
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dc = -prev_dc + |
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data[x + y * stride] * 8 - |
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data[x + 1 + y * stride]; |
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dc = (dc * 10923 + 32768) >> 16; |
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prev_dc = data[x + y * stride]; |
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data[x + y * stride] = dc; |
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} |
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} |
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|
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/* vertical filter */ |
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for (x = 1; x < width - 1; x++) { |
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int prev_dc = data[x]; |
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for (y = 1; y < height - 1; y++) { |
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int dc; |
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dc = -prev_dc + |
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data[x + y * stride] * 8 - |
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data[x + (y + 1) * stride]; |
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dc = (dc * 10923 + 32768) >> 16; |
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prev_dc = data[x + y * stride]; |
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data[x + y * stride] = dc; |
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} |
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} |
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} |
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/** |
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* guess the dc of blocks which do not have an undamaged dc |
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* @param w width in 8 pixel blocks |
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* @param h height in 8 pixel blocks |
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*/ |
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static void guess_dc(ERContext *s, int16_t *dc, int w, |
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int h, int stride, int is_luma) |
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{ |
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int b_x, b_y; |
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|
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for (b_y = 0; b_y < h; b_y++) { |
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for (b_x = 0; b_x < w; b_x++) { |
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int color[4] = { 1024, 1024, 1024, 1024 }; |
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int distance[4] = { 9999, 9999, 9999, 9999 }; |
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int mb_index, error, j; |
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int64_t guess, weight_sum; |
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mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride; |
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error = s->error_status_table[mb_index]; |
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|
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if (IS_INTER(s->cur_pic.mb_type[mb_index])) |
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continue; // inter |
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if (!(error & ER_DC_ERROR)) |
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continue; // dc-ok |
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|
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/* right block */ |
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for (j = b_x + 1; j < w; j++) { |
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int mb_index_j = (j >> is_luma) + (b_y >> is_luma) * s->mb_stride; |
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int error_j = s->error_status_table[mb_index_j]; |
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int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); |
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if (intra_j == 0 || !(error_j & ER_DC_ERROR)) { |
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color[0] = dc[j + b_y * stride]; |
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distance[0] = j - b_x; |
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break; |
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} |
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} |
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|
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/* left block */ |
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for (j = b_x - 1; j >= 0; j--) { |
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int mb_index_j = (j >> is_luma) + (b_y >> is_luma) * s->mb_stride; |
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int error_j = s->error_status_table[mb_index_j]; |
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int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); |
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if (intra_j == 0 || !(error_j & ER_DC_ERROR)) { |
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color[1] = dc[j + b_y * stride]; |
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distance[1] = b_x - j; |
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break; |
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} |
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} |
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|
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/* bottom block */ |
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for (j = b_y + 1; j < h; j++) { |
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int mb_index_j = (b_x >> is_luma) + (j >> is_luma) * s->mb_stride; |
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int error_j = s->error_status_table[mb_index_j]; |
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int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); |
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if (intra_j == 0 || !(error_j & ER_DC_ERROR)) { |
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color[2] = dc[b_x + j * stride]; |
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distance[2] = j - b_y; |
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break; |
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} |
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} |
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|
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/* top block */ |
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for (j = b_y - 1; j >= 0; j--) { |
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int mb_index_j = (b_x >> is_luma) + (j >> is_luma) * s->mb_stride; |
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int error_j = s->error_status_table[mb_index_j]; |
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int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); |
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if (intra_j == 0 || !(error_j & ER_DC_ERROR)) { |
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color[3] = dc[b_x + j * stride]; |
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distance[3] = b_y - j; |
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break; |
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} |
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} |
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weight_sum = 0; |
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guess = 0; |
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for (j = 0; j < 4; j++) { |
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int64_t weight = 256 * 256 * 256 * 16 / distance[j]; |
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guess += weight * (int64_t) color[j]; |
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weight_sum += weight; |
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} |
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guess = (guess + weight_sum / 2) / weight_sum; |
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dc[b_x + b_y * stride] = guess; |
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} |
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} |
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} |
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/** |
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* simple horizontal deblocking filter used for error resilience |
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* @param w width in 8 pixel blocks |
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* @param h height in 8 pixel blocks |
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*/ |
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static void h_block_filter(ERContext *s, uint8_t *dst, int w, |
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int h, int stride, int is_luma) |
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{ |
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int b_x, b_y, mvx_stride, mvy_stride; |
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const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; |
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set_mv_strides(s, &mvx_stride, &mvy_stride); |
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mvx_stride >>= is_luma; |
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mvy_stride *= mvx_stride; |
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for (b_y = 0; b_y < h; b_y++) { |
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for (b_x = 0; b_x < w - 1; b_x++) { |
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int y; |
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int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]); |
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int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]); |
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int left_damage = left_status & ER_MB_ERROR; |
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int right_damage = right_status & ER_MB_ERROR; |
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int offset = b_x * 8 + b_y * stride * 8; |
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int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; |
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int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)]; |
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if (!(left_damage || right_damage)) |
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continue; // both undamaged |
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if ((!left_intra) && (!right_intra) && |
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FFABS(left_mv[0] - right_mv[0]) + |
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FFABS(left_mv[1] + right_mv[1]) < 2) |
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continue; |
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for (y = 0; y < 8; y++) { |
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int a, b, c, d; |
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a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride]; |
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b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride]; |
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c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride]; |
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d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); |
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d = FFMAX(d, 0); |
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if (b < 0) |
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d = -d; |
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if (d == 0) |
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continue; |
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if (!(left_damage && right_damage)) |
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d = d * 16 / 9; |
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if (left_damage) { |
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dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)]; |
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dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)]; |
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dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)]; |
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dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)]; |
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} |
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if (right_damage) { |
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dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)]; |
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dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)]; |
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dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)]; |
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dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)]; |
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} |
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} |
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} |
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} |
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} |
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/** |
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* simple vertical deblocking filter used for error resilience |
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* @param w width in 8 pixel blocks |
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* @param h height in 8 pixel blocks |
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*/ |
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static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h, |
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int stride, int is_luma) |
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{ |
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int b_x, b_y, mvx_stride, mvy_stride; |
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const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; |
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set_mv_strides(s, &mvx_stride, &mvy_stride); |
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mvx_stride >>= is_luma; |
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mvy_stride *= mvx_stride; |
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|
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for (b_y = 0; b_y < h - 1; b_y++) { |
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for (b_x = 0; b_x < w; b_x++) { |
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int x; |
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int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]; |
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int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]); |
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int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]); |
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int top_damage = top_status & ER_MB_ERROR; |
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int bottom_damage = bottom_status & ER_MB_ERROR; |
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int offset = b_x * 8 + b_y * stride * 8; |
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|
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int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; |
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int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x]; |
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|
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if (!(top_damage || bottom_damage)) |
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continue; // both undamaged |
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|
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if ((!top_intra) && (!bottom_intra) && |
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FFABS(top_mv[0] - bottom_mv[0]) + |
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FFABS(top_mv[1] + bottom_mv[1]) < 2) |
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continue; |
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for (x = 0; x < 8; x++) { |
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int a, b, c, d; |
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|
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a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride]; |
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b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride]; |
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c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride]; |
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d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); |
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d = FFMAX(d, 0); |
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if (b < 0) |
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d = -d; |
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|
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if (d == 0) |
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continue; |
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|
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if (!(top_damage && bottom_damage)) |
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d = d * 16 / 9; |
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if (top_damage) { |
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dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)]; |
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dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)]; |
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dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)]; |
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dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)]; |
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} |
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if (bottom_damage) { |
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dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)]; |
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dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)]; |
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dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)]; |
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dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)]; |
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} |
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} |
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} |
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} |
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} |
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|
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static void guess_mv(ERContext *s) |
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{ |
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uint8_t *fixed = s->er_temp_buffer; |
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#define MV_FROZEN 3 |
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#define MV_CHANGED 2 |
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#define MV_UNCHANGED 1 |
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const int mb_stride = s->mb_stride; |
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const int mb_width = s->mb_width; |
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const int mb_height = s->mb_height; |
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int i, depth, num_avail; |
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int mb_x, mb_y, mot_step, mot_stride; |
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|
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set_mv_strides(s, &mot_step, &mot_stride); |
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num_avail = 0; |
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for (i = 0; i < s->mb_num; i++) { |
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const int mb_xy = s->mb_index2xy[i]; |
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int f = 0; |
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int error = s->error_status_table[mb_xy]; |
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|
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if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) |
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f = MV_FROZEN; // intra // FIXME check |
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if (!(error & ER_MV_ERROR)) |
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f = MV_FROZEN; // inter with undamaged MV |
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|
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fixed[mb_xy] = f; |
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if (f == MV_FROZEN) |
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num_avail++; |
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} |
|
|
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if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || |
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num_avail <= mb_width / 2) { |
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for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
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for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
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const int mb_xy = mb_x + mb_y * s->mb_stride; |
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int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD; |
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|
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if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) |
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continue; |
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if (!(s->error_status_table[mb_xy] & ER_MV_ERROR)) |
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continue; |
|
|
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s->mv[0][0][0] = 0; |
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s->mv[0][0][1] = 0; |
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s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, |
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mb_x, mb_y, 0, 0); |
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} |
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} |
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return; |
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} |
|
|
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for (depth = 0; ; depth++) { |
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int changed, pass, none_left; |
|
|
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none_left = 1; |
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changed = 1; |
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for (pass = 0; (changed || pass < 2) && pass < 10; pass++) { |
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int mb_x, mb_y; |
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int score_sum = 0; |
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|
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changed = 0; |
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for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
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for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
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const int mb_xy = mb_x + mb_y * s->mb_stride; |
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int mv_predictor[8][2] = { { 0 } }; |
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int ref[8] = { 0 }; |
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int pred_count = 0; |
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int j; |
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int best_score = 256 * 256 * 256 * 64; |
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int best_pred = 0; |
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const int mot_index = (mb_x + mb_y * mot_stride) * mot_step; |
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int prev_x, prev_y, prev_ref; |
|
|
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if ((mb_x ^ mb_y ^ pass) & 1) |
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continue; |
|
|
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if (fixed[mb_xy] == MV_FROZEN) |
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continue; |
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assert(!IS_INTRA(s->cur_pic.mb_type[mb_xy])); |
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assert(s->last_pic && s->last_pic.f->data[0]); |
|
|
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j = 0; |
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if (mb_x > 0 && fixed[mb_xy - 1] == MV_FROZEN) |
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j = 1; |
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if (mb_x + 1 < mb_width && fixed[mb_xy + 1] == MV_FROZEN) |
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j = 1; |
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if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_FROZEN) |
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j = 1; |
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if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_FROZEN) |
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j = 1; |
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if (j == 0) |
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continue; |
|
|
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j = 0; |
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if (mb_x > 0 && fixed[mb_xy - 1 ] == MV_CHANGED) |
|
j = 1; |
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if (mb_x + 1 < mb_width && fixed[mb_xy + 1 ] == MV_CHANGED) |
|
j = 1; |
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if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_CHANGED) |
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j = 1; |
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if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_CHANGED) |
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j = 1; |
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if (j == 0 && pass > 1) |
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continue; |
|
|
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none_left = 0; |
|
|
|
if (mb_x > 0 && fixed[mb_xy - 1]) { |
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mv_predictor[pred_count][0] = |
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s->cur_pic.motion_val[0][mot_index - mot_step][0]; |
|
mv_predictor[pred_count][1] = |
|
s->cur_pic.motion_val[0][mot_index - mot_step][1]; |
|
ref[pred_count] = |
|
s->cur_pic.ref_index[0][4 * (mb_xy - 1)]; |
|
pred_count++; |
|
} |
|
if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { |
|
mv_predictor[pred_count][0] = |
|
s->cur_pic.motion_val[0][mot_index + mot_step][0]; |
|
mv_predictor[pred_count][1] = |
|
s->cur_pic.motion_val[0][mot_index + mot_step][1]; |
|
ref[pred_count] = |
|
s->cur_pic.ref_index[0][4 * (mb_xy + 1)]; |
|
pred_count++; |
|
} |
|
if (mb_y > 0 && fixed[mb_xy - mb_stride]) { |
|
mv_predictor[pred_count][0] = |
|
s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0]; |
|
mv_predictor[pred_count][1] = |
|
s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1]; |
|
ref[pred_count] = |
|
s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)]; |
|
pred_count++; |
|
} |
|
if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride]) { |
|
mv_predictor[pred_count][0] = |
|
s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0]; |
|
mv_predictor[pred_count][1] = |
|
s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1]; |
|
ref[pred_count] = |
|
s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)]; |
|
pred_count++; |
|
} |
|
if (pred_count == 0) |
|
continue; |
|
|
|
if (pred_count > 1) { |
|
int sum_x = 0, sum_y = 0, sum_r = 0; |
|
int max_x, max_y, min_x, min_y, max_r, min_r; |
|
|
|
for (j = 0; j < pred_count; j++) { |
|
sum_x += mv_predictor[j][0]; |
|
sum_y += mv_predictor[j][1]; |
|
sum_r += ref[j]; |
|
if (j && ref[j] != ref[j - 1]) |
|
goto skip_mean_and_median; |
|
} |
|
|
|
/* mean */ |
|
mv_predictor[pred_count][0] = sum_x / j; |
|
mv_predictor[pred_count][1] = sum_y / j; |
|
ref[pred_count] = sum_r / j; |
|
|
|
/* median */ |
|
if (pred_count >= 3) { |
|
min_y = min_x = min_r = 99999; |
|
max_y = max_x = max_r = -99999; |
|
} else { |
|
min_x = min_y = max_x = max_y = min_r = max_r = 0; |
|
} |
|
for (j = 0; j < pred_count; j++) { |
|
max_x = FFMAX(max_x, mv_predictor[j][0]); |
|
max_y = FFMAX(max_y, mv_predictor[j][1]); |
|
max_r = FFMAX(max_r, ref[j]); |
|
min_x = FFMIN(min_x, mv_predictor[j][0]); |
|
min_y = FFMIN(min_y, mv_predictor[j][1]); |
|
min_r = FFMIN(min_r, ref[j]); |
|
} |
|
mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x; |
|
mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y; |
|
ref[pred_count + 1] = sum_r - max_r - min_r; |
|
|
|
if (pred_count == 4) { |
|
mv_predictor[pred_count + 1][0] /= 2; |
|
mv_predictor[pred_count + 1][1] /= 2; |
|
ref[pred_count + 1] /= 2; |
|
} |
|
pred_count += 2; |
|
} |
|
|
|
skip_mean_and_median: |
|
/* zero MV */ |
|
pred_count++; |
|
|
|
if (!fixed[mb_xy]) { |
|
if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
|
// FIXME |
|
} else { |
|
ff_thread_await_progress(s->last_pic.tf, |
|
mb_y, 0); |
|
} |
|
if (!s->last_pic.motion_val[0] || |
|
!s->last_pic.ref_index[0]) |
|
goto skip_last_mv; |
|
prev_x = s->last_pic.motion_val[0][mot_index][0]; |
|
prev_y = s->last_pic.motion_val[0][mot_index][1]; |
|
prev_ref = s->last_pic.ref_index[0][4 * mb_xy]; |
|
} else { |
|
prev_x = s->cur_pic.motion_val[0][mot_index][0]; |
|
prev_y = s->cur_pic.motion_val[0][mot_index][1]; |
|
prev_ref = s->cur_pic.ref_index[0][4 * mb_xy]; |
|
} |
|
|
|
/* last MV */ |
|
mv_predictor[pred_count][0] = prev_x; |
|
mv_predictor[pred_count][1] = prev_y; |
|
ref[pred_count] = prev_ref; |
|
pred_count++; |
|
|
|
skip_last_mv: |
|
|
|
for (j = 0; j < pred_count; j++) { |
|
int *linesize = s->cur_pic.f->linesize; |
|
int score = 0; |
|
uint8_t *src = s->cur_pic.f->data[0] + |
|
mb_x * 16 + mb_y * 16 * linesize[0]; |
|
|
|
s->cur_pic.motion_val[0][mot_index][0] = |
|
s->mv[0][0][0] = mv_predictor[j][0]; |
|
s->cur_pic.motion_val[0][mot_index][1] = |
|
s->mv[0][0][1] = mv_predictor[j][1]; |
|
|
|
// predictor intra or otherwise not available |
|
if (ref[j] < 0) |
|
continue; |
|
|
|
s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD, |
|
MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); |
|
|
|
if (mb_x > 0 && fixed[mb_xy - 1]) { |
|
int k; |
|
for (k = 0; k < 16; k++) |
|
score += FFABS(src[k * linesize[0] - 1] - |
|
src[k * linesize[0]]); |
|
} |
|
if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { |
|
int k; |
|
for (k = 0; k < 16; k++) |
|
score += FFABS(src[k * linesize[0] + 15] - |
|
src[k * linesize[0] + 16]); |
|
} |
|
if (mb_y > 0 && fixed[mb_xy - mb_stride]) { |
|
int k; |
|
for (k = 0; k < 16; k++) |
|
score += FFABS(src[k - linesize[0]] - src[k]); |
|
} |
|
if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride]) { |
|
int k; |
|
for (k = 0; k < 16; k++) |
|
score += FFABS(src[k + linesize[0] * 15] - |
|
src[k + linesize[0] * 16]); |
|
} |
|
|
|
if (score <= best_score) { // <= will favor the last MV |
|
best_score = score; |
|
best_pred = j; |
|
} |
|
} |
|
score_sum += best_score; |
|
s->mv[0][0][0] = mv_predictor[best_pred][0]; |
|
s->mv[0][0][1] = mv_predictor[best_pred][1]; |
|
|
|
for (i = 0; i < mot_step; i++) |
|
for (j = 0; j < mot_step; j++) { |
|
s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0]; |
|
s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1]; |
|
} |
|
|
|
s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD, |
|
MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); |
|
|
|
|
|
if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) { |
|
fixed[mb_xy] = MV_CHANGED; |
|
changed++; |
|
} else |
|
fixed[mb_xy] = MV_UNCHANGED; |
|
} |
|
} |
|
} |
|
|
|
if (none_left) |
|
return; |
|
|
|
for (i = 0; i < s->mb_num; i++) { |
|
int mb_xy = s->mb_index2xy[i]; |
|
if (fixed[mb_xy]) |
|
fixed[mb_xy] = MV_FROZEN; |
|
} |
|
} |
|
} |
|
|
|
static int is_intra_more_likely(ERContext *s) |
|
{ |
|
int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y; |
|
|
|
if (!s->last_pic.f || !s->last_pic.f->data[0]) |
|
return 1; // no previous frame available -> use spatial prediction |
|
|
|
undamaged_count = 0; |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
const int error = s->error_status_table[mb_xy]; |
|
if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) |
|
undamaged_count++; |
|
} |
|
|
|
if (s->avctx->codec_id == AV_CODEC_ID_H264 && s->ref_count <= 0) |
|
return 1; |
|
|
|
if (undamaged_count < 5) |
|
return 0; // almost all MBs damaged -> use temporal prediction |
|
|
|
#if FF_API_XVMC |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
// prevent dsp.sad() check, that requires access to the image |
|
if (CONFIG_MPEG_XVMC_DECODER && |
|
s->avctx->xvmc_acceleration && |
|
s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) |
|
return 1; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_XVMC */ |
|
|
|
skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs |
|
is_intra_likely = 0; |
|
|
|
j = 0; |
|
for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
int error; |
|
const int mb_xy = mb_x + mb_y * s->mb_stride; |
|
|
|
error = s->error_status_table[mb_xy]; |
|
if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR)) |
|
continue; // skip damaged |
|
|
|
j++; |
|
// skip a few to speed things up |
|
if ((j % skip_amount) != 0) |
|
continue; |
|
|
|
if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) { |
|
int *linesize = s->cur_pic.f->linesize; |
|
uint8_t *mb_ptr = s->cur_pic.f->data[0] + |
|
mb_x * 16 + mb_y * 16 * linesize[0]; |
|
uint8_t *last_mb_ptr = s->last_pic.f->data[0] + |
|
mb_x * 16 + mb_y * 16 * linesize[0]; |
|
|
|
if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
|
// FIXME |
|
} else { |
|
ff_thread_await_progress(s->last_pic.tf, mb_y, 0); |
|
} |
|
is_intra_likely += s->dsp->sad[0](NULL, last_mb_ptr, mb_ptr, |
|
linesize[0], 16); |
|
is_intra_likely -= s->dsp->sad[0](NULL, last_mb_ptr, |
|
last_mb_ptr + linesize[0] * 16, |
|
linesize[0], 16); |
|
} else { |
|
if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) |
|
is_intra_likely++; |
|
else |
|
is_intra_likely--; |
|
} |
|
} |
|
} |
|
return is_intra_likely > 0; |
|
} |
|
|
|
void ff_er_frame_start(ERContext *s) |
|
{ |
|
if (!s->avctx->error_concealment) |
|
return; |
|
|
|
memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END, |
|
s->mb_stride * s->mb_height * sizeof(uint8_t)); |
|
s->error_count = 3 * s->mb_num; |
|
s->error_occurred = 0; |
|
} |
|
|
|
/** |
|
* Add a slice. |
|
* @param endx x component of the last macroblock, can be -1 |
|
* for the last of the previous line |
|
* @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is |
|
* assumed that no earlier end or error of the same type occurred |
|
*/ |
|
void ff_er_add_slice(ERContext *s, int startx, int starty, |
|
int endx, int endy, int status) |
|
{ |
|
const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1); |
|
const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num); |
|
const int start_xy = s->mb_index2xy[start_i]; |
|
const int end_xy = s->mb_index2xy[end_i]; |
|
int mask = -1; |
|
|
|
if (s->avctx->hwaccel) |
|
return; |
|
|
|
if (start_i > end_i || start_xy > end_xy) { |
|
av_log(s->avctx, AV_LOG_ERROR, |
|
"internal error, slice end before start\n"); |
|
return; |
|
} |
|
|
|
if (!s->avctx->error_concealment) |
|
return; |
|
|
|
mask &= ~VP_START; |
|
if (status & (ER_AC_ERROR | ER_AC_END)) { |
|
mask &= ~(ER_AC_ERROR | ER_AC_END); |
|
s->error_count -= end_i - start_i + 1; |
|
} |
|
if (status & (ER_DC_ERROR | ER_DC_END)) { |
|
mask &= ~(ER_DC_ERROR | ER_DC_END); |
|
s->error_count -= end_i - start_i + 1; |
|
} |
|
if (status & (ER_MV_ERROR | ER_MV_END)) { |
|
mask &= ~(ER_MV_ERROR | ER_MV_END); |
|
s->error_count -= end_i - start_i + 1; |
|
} |
|
|
|
if (status & ER_MB_ERROR) { |
|
s->error_occurred = 1; |
|
s->error_count = INT_MAX; |
|
} |
|
|
|
if (mask == ~0x7F) { |
|
memset(&s->error_status_table[start_xy], 0, |
|
(end_xy - start_xy) * sizeof(uint8_t)); |
|
} else { |
|
int i; |
|
for (i = start_xy; i < end_xy; i++) |
|
s->error_status_table[i] &= mask; |
|
} |
|
|
|
if (end_i == s->mb_num) |
|
s->error_count = INT_MAX; |
|
else { |
|
s->error_status_table[end_xy] &= mask; |
|
s->error_status_table[end_xy] |= status; |
|
} |
|
|
|
s->error_status_table[start_xy] |= VP_START; |
|
|
|
if (start_xy > 0 && s->avctx->thread_count <= 1 && |
|
s->avctx->skip_top * s->mb_width < start_i) { |
|
int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]]; |
|
|
|
prev_status &= ~ VP_START; |
|
if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) |
|
s->error_count = INT_MAX; |
|
} |
|
} |
|
|
|
void ff_er_frame_end(ERContext *s) |
|
{ |
|
int *linesize = s->cur_pic.f->linesize; |
|
int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error; |
|
int distance; |
|
int threshold_part[4] = { 100, 100, 100 }; |
|
int threshold = 50; |
|
int is_intra_likely; |
|
|
|
/* We do not support ER of field pictures yet, |
|
* though it should not crash if enabled. */ |
|
if (!s->avctx->error_concealment || s->error_count == 0 || |
|
s->avctx->hwaccel || |
|
!s->cur_pic.f || |
|
s->cur_pic.field_picture || |
|
s->error_count == 3 * s->mb_width * |
|
(s->avctx->skip_top + s->avctx->skip_bottom)) { |
|
return; |
|
}; |
|
|
|
if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) { |
|
av_log(s->avctx, AV_LOG_ERROR, "MVs not available, ER not possible.\n"); |
|
return; |
|
} |
|
|
|
if (s->avctx->debug & FF_DEBUG_ER) { |
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
int status = s->error_status_table[mb_x + mb_y * s->mb_stride]; |
|
|
|
av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status); |
|
} |
|
av_log(s->avctx, AV_LOG_DEBUG, "\n"); |
|
} |
|
} |
|
|
|
/* handle overlapping slices */ |
|
for (error_type = 1; error_type <= 3; error_type++) { |
|
int end_ok = 0; |
|
|
|
for (i = s->mb_num - 1; i >= 0; i--) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int error = s->error_status_table[mb_xy]; |
|
|
|
if (error & (1 << error_type)) |
|
end_ok = 1; |
|
if (error & (8 << error_type)) |
|
end_ok = 1; |
|
|
|
if (!end_ok) |
|
s->error_status_table[mb_xy] |= 1 << error_type; |
|
|
|
if (error & VP_START) |
|
end_ok = 0; |
|
} |
|
} |
|
|
|
/* handle slices with partitions of different length */ |
|
if (s->partitioned_frame) { |
|
int end_ok = 0; |
|
|
|
for (i = s->mb_num - 1; i >= 0; i--) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int error = s->error_status_table[mb_xy]; |
|
|
|
if (error & ER_AC_END) |
|
end_ok = 0; |
|
if ((error & ER_MV_END) || |
|
(error & ER_DC_END) || |
|
(error & ER_AC_ERROR)) |
|
end_ok = 1; |
|
|
|
if (!end_ok) |
|
s->error_status_table[mb_xy]|= ER_AC_ERROR; |
|
|
|
if (error & VP_START) |
|
end_ok = 0; |
|
} |
|
} |
|
|
|
/* handle missing slices */ |
|
if (s->avctx->err_recognition & AV_EF_EXPLODE) { |
|
int end_ok = 1; |
|
|
|
// FIXME + 100 hack |
|
for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int error1 = s->error_status_table[mb_xy]; |
|
int error2 = s->error_status_table[s->mb_index2xy[i + 1]]; |
|
|
|
if (error1 & VP_START) |
|
end_ok = 1; |
|
|
|
if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) && |
|
error1 != (VP_START | ER_MB_ERROR | ER_MB_END) && |
|
((error1 & ER_AC_END) || (error1 & ER_DC_END) || |
|
(error1 & ER_MV_END))) { |
|
// end & uninit |
|
end_ok = 0; |
|
} |
|
|
|
if (!end_ok) |
|
s->error_status_table[mb_xy] |= ER_MB_ERROR; |
|
} |
|
} |
|
|
|
/* backward mark errors */ |
|
distance = 9999999; |
|
for (error_type = 1; error_type <= 3; error_type++) { |
|
for (i = s->mb_num - 1; i >= 0; i--) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int error = s->error_status_table[mb_xy]; |
|
|
|
if (!s->mbskip_table[mb_xy]) // FIXME partition specific |
|
distance++; |
|
if (error & (1 << error_type)) |
|
distance = 0; |
|
|
|
if (s->partitioned_frame) { |
|
if (distance < threshold_part[error_type - 1]) |
|
s->error_status_table[mb_xy] |= 1 << error_type; |
|
} else { |
|
if (distance < threshold) |
|
s->error_status_table[mb_xy] |= 1 << error_type; |
|
} |
|
|
|
if (error & VP_START) |
|
distance = 9999999; |
|
} |
|
} |
|
|
|
/* forward mark errors */ |
|
error = 0; |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int old_error = s->error_status_table[mb_xy]; |
|
|
|
if (old_error & VP_START) { |
|
error = old_error & ER_MB_ERROR; |
|
} else { |
|
error |= old_error & ER_MB_ERROR; |
|
s->error_status_table[mb_xy] |= error; |
|
} |
|
} |
|
|
|
/* handle not partitioned case */ |
|
if (!s->partitioned_frame) { |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
error = s->error_status_table[mb_xy]; |
|
if (error & ER_MB_ERROR) |
|
error |= ER_MB_ERROR; |
|
s->error_status_table[mb_xy] = error; |
|
} |
|
} |
|
|
|
dc_error = ac_error = mv_error = 0; |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
error = s->error_status_table[mb_xy]; |
|
if (error & ER_DC_ERROR) |
|
dc_error++; |
|
if (error & ER_AC_ERROR) |
|
ac_error++; |
|
if (error & ER_MV_ERROR) |
|
mv_error++; |
|
} |
|
av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors\n", |
|
dc_error, ac_error, mv_error); |
|
|
|
is_intra_likely = is_intra_more_likely(s); |
|
|
|
/* set unknown mb-type to most likely */ |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
error = s->error_status_table[mb_xy]; |
|
if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) |
|
continue; |
|
|
|
if (is_intra_likely) |
|
s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; |
|
else |
|
s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0; |
|
} |
|
|
|
// change inter to intra blocks if no reference frames are available |
|
if (!(s->last_pic.f && s->last_pic.f->data[0]) && |
|
!(s->next_pic.f && s->next_pic.f->data[0])) |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
if (!IS_INTRA(s->cur_pic.mb_type[mb_xy])) |
|
s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; |
|
} |
|
|
|
/* handle inter blocks with damaged AC */ |
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
const int mb_xy = mb_x + mb_y * s->mb_stride; |
|
const int mb_type = s->cur_pic.mb_type[mb_xy]; |
|
const int dir = !(s->last_pic.f && s->last_pic.f->data[0]); |
|
const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD; |
|
int mv_type; |
|
|
|
error = s->error_status_table[mb_xy]; |
|
|
|
if (IS_INTRA(mb_type)) |
|
continue; // intra |
|
if (error & ER_MV_ERROR) |
|
continue; // inter with damaged MV |
|
if (!(error & ER_AC_ERROR)) |
|
continue; // undamaged inter |
|
|
|
if (IS_8X8(mb_type)) { |
|
int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride; |
|
int j; |
|
mv_type = MV_TYPE_8X8; |
|
for (j = 0; j < 4; j++) { |
|
s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0]; |
|
s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1]; |
|
} |
|
} else { |
|
mv_type = MV_TYPE_16X16; |
|
s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0]; |
|
s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1]; |
|
} |
|
|
|
s->decode_mb(s->opaque, 0 /* FIXME h264 partitioned slices need this set */, |
|
mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0); |
|
} |
|
} |
|
|
|
/* guess MVs */ |
|
if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) { |
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
int xy = mb_x * 2 + mb_y * 2 * s->b8_stride; |
|
const int mb_xy = mb_x + mb_y * s->mb_stride; |
|
const int mb_type = s->cur_pic.mb_type[mb_xy]; |
|
int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; |
|
|
|
error = s->error_status_table[mb_xy]; |
|
|
|
if (IS_INTRA(mb_type)) |
|
continue; |
|
if (!(error & ER_MV_ERROR)) |
|
continue; // inter with undamaged MV |
|
if (!(error & ER_AC_ERROR)) |
|
continue; // undamaged inter |
|
|
|
if (!(s->last_pic.f && s->last_pic.f->data[0])) |
|
mv_dir &= ~MV_DIR_FORWARD; |
|
if (!(s->next_pic.f && s->next_pic.f->data[0])) |
|
mv_dir &= ~MV_DIR_BACKWARD; |
|
|
|
if (s->pp_time) { |
|
int time_pp = s->pp_time; |
|
int time_pb = s->pb_time; |
|
|
|
ff_thread_await_progress(s->next_pic.tf, mb_y, 0); |
|
|
|
s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp; |
|
s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp; |
|
s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp; |
|
s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp; |
|
} else { |
|
s->mv[0][0][0] = 0; |
|
s->mv[0][0][1] = 0; |
|
s->mv[1][0][0] = 0; |
|
s->mv[1][0][1] = 0; |
|
} |
|
|
|
s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, |
|
mb_x, mb_y, 0, 0); |
|
} |
|
} |
|
} else |
|
guess_mv(s); |
|
|
|
#if FF_API_XVMC |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
/* the filters below are not XvMC compatible, skip them */ |
|
if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) |
|
goto ec_clean; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_XVMC */ |
|
/* fill DC for inter blocks */ |
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
int dc, dcu, dcv, y, n; |
|
int16_t *dc_ptr; |
|
uint8_t *dest_y, *dest_cb, *dest_cr; |
|
const int mb_xy = mb_x + mb_y * s->mb_stride; |
|
const int mb_type = s->cur_pic.mb_type[mb_xy]; |
|
|
|
error = s->error_status_table[mb_xy]; |
|
|
|
if (IS_INTRA(mb_type) && s->partitioned_frame) |
|
continue; |
|
// if (error & ER_MV_ERROR) |
|
// continue; // inter data damaged FIXME is this good? |
|
|
|
dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; |
|
dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; |
|
dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; |
|
|
|
dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride]; |
|
for (n = 0; n < 4; n++) { |
|
dc = 0; |
|
for (y = 0; y < 8; y++) { |
|
int x; |
|
for (x = 0; x < 8; x++) |
|
dc += dest_y[x + (n & 1) * 8 + |
|
(y + (n >> 1) * 8) * linesize[0]]; |
|
} |
|
dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3; |
|
} |
|
|
|
dcu = dcv = 0; |
|
for (y = 0; y < 8; y++) { |
|
int x; |
|
for (x = 0; x < 8; x++) { |
|
dcu += dest_cb[x + y * linesize[1]]; |
|
dcv += dest_cr[x + y * linesize[2]]; |
|
} |
|
} |
|
s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3; |
|
s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3; |
|
} |
|
} |
|
|
|
/* guess DC for damaged blocks */ |
|
guess_dc(s, s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride, 1); |
|
guess_dc(s, s->dc_val[1], s->mb_width, s->mb_height, s->mb_stride, 0); |
|
guess_dc(s, s->dc_val[2], s->mb_width, s->mb_height, s->mb_stride, 0); |
|
|
|
/* filter luma DC */ |
|
filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride); |
|
|
|
/* render DC only intra */ |
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
|
uint8_t *dest_y, *dest_cb, *dest_cr; |
|
const int mb_xy = mb_x + mb_y * s->mb_stride; |
|
const int mb_type = s->cur_pic.mb_type[mb_xy]; |
|
|
|
error = s->error_status_table[mb_xy]; |
|
|
|
if (IS_INTER(mb_type)) |
|
continue; |
|
if (!(error & ER_AC_ERROR)) |
|
continue; // undamaged |
|
|
|
dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; |
|
dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; |
|
dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; |
|
|
|
put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y); |
|
} |
|
} |
|
|
|
if (s->avctx->error_concealment & FF_EC_DEBLOCK) { |
|
/* filter horizontal block boundaries */ |
|
h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, |
|
s->mb_height * 2, linesize[0], 1); |
|
h_block_filter(s, s->cur_pic.f->data[1], s->mb_width, |
|
s->mb_height, linesize[1], 0); |
|
h_block_filter(s, s->cur_pic.f->data[2], s->mb_width, |
|
s->mb_height, linesize[2], 0); |
|
|
|
/* filter vertical block boundaries */ |
|
v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, |
|
s->mb_height * 2, linesize[0], 1); |
|
v_block_filter(s, s->cur_pic.f->data[1], s->mb_width, |
|
s->mb_height, linesize[1], 0); |
|
v_block_filter(s, s->cur_pic.f->data[2], s->mb_width, |
|
s->mb_height, linesize[2], 0); |
|
} |
|
|
|
ec_clean: |
|
/* clean a few tables */ |
|
for (i = 0; i < s->mb_num; i++) { |
|
const int mb_xy = s->mb_index2xy[i]; |
|
int error = s->error_status_table[mb_xy]; |
|
|
|
if (s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B && |
|
(error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) { |
|
s->mbskip_table[mb_xy] = 0; |
|
} |
|
s->mbintra_table[mb_xy] = 1; |
|
} |
|
|
|
memset(&s->cur_pic, 0, sizeof(ERPicture)); |
|
memset(&s->last_pic, 0, sizeof(ERPicture)); |
|
memset(&s->next_pic, 0, sizeof(ERPicture)); |
|
}
|
|
|