2 * This file is part of FFmpeg.
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.
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.
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
19 #ifndef AVCODEC_ERROR_RESILIENCE_H
20 #define AVCODEC_ERROR_RESILIENCE_H
23 #include <stdatomic.h>
28 ///< current MB is the first after a resync marker
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)
40 typedef struct ERPicture
{
42 const struct ThreadFrame
*tf
;
44 // it is the caller's responsibility to allocate these buffers
45 int16_t (*motion_val
[2])[2];
52 typedef struct ERContext
{
53 AVCodecContext
*avctx
;
60 int mb_width
, mb_height
;
64 atomic_int error_count
;
66 uint8_t *error_status_table
;
67 uint8_t *er_temp_buffer
;
69 uint8_t *mbskip_table
;
70 uint8_t *mbintra_table
;
78 int16_t (*motion_val_base
[2])[2];
83 int partitioned_frame
;
85 void (*decode_mb
)(void *opaque
, int ref
, int mv_dir
, int mv_type
,
87 int mb_x
, int mb_y
, int mb_intra
, int mb_skipped
);
91 void ff_er_frame_start(ERContext
*s
);
94 * Indicate that a frame has finished decoding and perform error concealment
95 * in case it has been enabled and is necessary and supported.
97 * @param s ERContext in use
98 * @param decode_error_flags pointer where updated decode_error_flags are written
99 * if supplied; if not, the new flags are directly
100 * applied to the AVFrame whose errors are concealed
102 void ff_er_frame_end(ERContext
*s
, int *decode_error_flags
);
103 void ff_er_add_slice(ERContext
*s
, int startx
, int starty
, int endx
, int endy
,
106 #endif /* AVCODEC_ERROR_RESILIENCE_H */