LCOV - code coverage report
Current view: top level - libavcodec - mpeg_er.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 69 74 93.2 %
Date: 2017-12-18 20:14:19 Functions: 4 4 100.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : #include "error_resilience.h"
      20             : #include "mpegvideo.h"
      21             : #include "mpeg_er.h"
      22             : 
      23       32406 : static void set_erpic(ERPicture *dst, Picture *src)
      24             : {
      25             :     int i;
      26             : 
      27       32406 :     memset(dst, 0, sizeof(*dst));
      28       32406 :     if (!src) {
      29         286 :         dst->f  = NULL;
      30         286 :         dst->tf = NULL;
      31         286 :         return;
      32             :     }
      33             : 
      34       32120 :     dst->f = src->f;
      35       32120 :     dst->tf = &src->tf;
      36             : 
      37       96360 :     for (i = 0; i < 2; i++) {
      38       64240 :         dst->motion_val[i] = src->motion_val[i];
      39       64240 :         dst->ref_index[i] = src->ref_index[i];
      40             :     }
      41             : 
      42       32120 :     dst->mb_type = src->mb_type;
      43       32120 :     dst->field_picture = src->field_picture;
      44             : }
      45             : 
      46       10802 : void ff_mpeg_er_frame_start(MpegEncContext *s)
      47             : {
      48       10802 :     ERContext *er = &s->er;
      49             : 
      50       10802 :     set_erpic(&er->cur_pic,  s->current_picture_ptr);
      51       10802 :     set_erpic(&er->next_pic, s->next_picture_ptr);
      52       10802 :     set_erpic(&er->last_pic, s->last_picture_ptr);
      53             : 
      54       10802 :     er->pp_time           = s->pp_time;
      55       10802 :     er->pb_time           = s->pb_time;
      56       10802 :     er->quarter_sample    = s->quarter_sample;
      57       10802 :     er->partitioned_frame = s->partitioned_frame;
      58             : 
      59       10802 :     ff_er_frame_start(er);
      60       10802 : }
      61             : 
      62       59062 : static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
      63             :                               int (*mv)[2][4][2], int mb_x, int mb_y,
      64             :                               int mb_intra, int mb_skipped)
      65             : {
      66       59062 :     MpegEncContext *s = opaque;
      67             : 
      68       59062 :     s->mv_dir     = mv_dir;
      69       59062 :     s->mv_type    = mv_type;
      70       59062 :     s->mb_intra   = mb_intra;
      71       59062 :     s->mb_skipped = mb_skipped;
      72       59062 :     s->mb_x       = mb_x;
      73       59062 :     s->mb_y       = mb_y;
      74       59062 :     s->mcsel      = 0;
      75       59062 :     memcpy(s->mv, mv, sizeof(*mv));
      76             : 
      77       59062 :     ff_init_block_index(s);
      78       59062 :     ff_update_block_index(s);
      79             : 
      80       59062 :     s->bdsp.clear_blocks(s->block[0]);
      81             : 
      82      118124 :     s->dest[0] = s->current_picture.f->data[0] +
      83      118124 :                  s->mb_y * 16 * s->linesize +
      84       59062 :                  s->mb_x * 16;
      85      118124 :     s->dest[1] = s->current_picture.f->data[1] +
      86      118124 :                  s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
      87       59062 :                  s->mb_x * (16 >> s->chroma_x_shift);
      88      118124 :     s->dest[2] = s->current_picture.f->data[2] +
      89      118124 :                  s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
      90       59062 :                  s->mb_x * (16 >> s->chroma_x_shift);
      91             : 
      92       59062 :     if (ref)
      93           0 :         av_log(s->avctx, AV_LOG_DEBUG,
      94             :                "Interlaced error concealment is not fully implemented\n");
      95       59062 :     ff_mpv_reconstruct_mb(s, s->block);
      96       59062 : }
      97             : 
      98         775 : int ff_mpeg_er_init(MpegEncContext *s)
      99             : {
     100         775 :     ERContext *er = &s->er;
     101         775 :     int mb_array_size = s->mb_height * s->mb_stride;
     102             :     int i;
     103             : 
     104         775 :     er->avctx       = s->avctx;
     105             : 
     106         775 :     er->mb_index2xy = s->mb_index2xy;
     107         775 :     er->mb_num      = s->mb_num;
     108         775 :     er->mb_width    = s->mb_width;
     109         775 :     er->mb_height   = s->mb_height;
     110         775 :     er->mb_stride   = s->mb_stride;
     111         775 :     er->b8_stride   = s->b8_stride;
     112             : 
     113         775 :     er->er_temp_buffer     = av_malloc(s->mb_height * s->mb_stride * (4*sizeof(int) + 1));
     114         775 :     er->error_status_table = av_mallocz(mb_array_size);
     115         775 :     if (!er->er_temp_buffer || !er->error_status_table)
     116             :         goto fail;
     117             : 
     118         775 :     er->mbskip_table  = s->mbskip_table;
     119         775 :     er->mbintra_table = s->mbintra_table;
     120             : 
     121        3100 :     for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
     122        2325 :         er->dc_val[i] = s->dc_val[i];
     123             : 
     124         775 :     er->decode_mb = mpeg_er_decode_mb;
     125         775 :     er->opaque    = s;
     126             : 
     127         775 :     return 0;
     128           0 : fail:
     129           0 :     av_freep(&er->er_temp_buffer);
     130           0 :     av_freep(&er->error_status_table);
     131           0 :     return AVERROR(ENOMEM);
     132             : }

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