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  1. /*
  2.  *
  3.  * This file is part of FFmpeg.
  4.  *
  5.  * FFmpeg is free software; you can redistribute it and/or
  6.  * modify it under the terms of the GNU Lesser General Public
  7.  * License as published by the Free Software Foundation; either
  8.  * version 2.1 of the License, or (at your option) any later version.
  9.  *
  10.  * FFmpeg is distributed in the hope that it will be useful,
  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13.  * Lesser General Public License for more details.
  14.  *
  15.  * You should have received a copy of the GNU Lesser General Public
  16.  * License along with FFmpeg; if not, write to the Free Software
  17.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18.  */
  19.  
  20. #ifndef AVCODEC_ERROR_RESILIENCE_H
  21. #define AVCODEC_ERROR_RESILIENCE_H
  22.  
  23. #include <stdint.h>
  24.  
  25. #include "avcodec.h"
  26. #include "dsputil.h"
  27.  
  28. ///< current MB is the first after a resync marker
  29. #define VP_START               1
  30. #define ER_AC_ERROR            2
  31. #define ER_DC_ERROR            4
  32. #define ER_MV_ERROR            8
  33. #define ER_AC_END              16
  34. #define ER_DC_END              32
  35. #define ER_MV_END              64
  36.  
  37. #define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
  38. #define ER_MB_END   (ER_AC_END|ER_DC_END|ER_MV_END)
  39.  
  40. typedef struct ERContext {
  41.     AVCodecContext *avctx;
  42.     DSPContext *dsp;
  43.  
  44.     int *mb_index2xy;
  45.     int mb_num;
  46.     int mb_width, mb_height;
  47.     int mb_stride;
  48.     int b8_stride;
  49.  
  50.     int error_count, error_occurred;
  51.     uint8_t *error_status_table;
  52.     uint8_t *er_temp_buffer;
  53.     int16_t *dc_val[3];
  54.     uint8_t *mbskip_table;
  55.     uint8_t *mbintra_table;
  56.     int mv[2][4][2];
  57.  
  58.     struct Picture *cur_pic;
  59.     struct Picture *last_pic;
  60.     struct Picture *next_pic;
  61.  
  62.     uint16_t pp_time;
  63.     uint16_t pb_time;
  64.     int quarter_sample;
  65.     int partitioned_frame;
  66.     int ref_count;
  67.  
  68.     void (*decode_mb)(void *opaque, int ref, int mv_dir, int mv_type,
  69.                       int (*mv)[2][4][2],
  70.                       int mb_x, int mb_y, int mb_intra, int mb_skipped);
  71.     void *opaque;
  72. } ERContext;
  73.  
  74. void ff_er_frame_start(ERContext *s);
  75. void ff_er_frame_end(ERContext *s);
  76. void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy,
  77.                      int status);
  78.  
  79. #endif /* AVCODEC_ERROR_RESILIENCE_H */
  80.