FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
error_resilience.h
Go to the documentation of this file.
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 "me_cmp.h"
27 #include "thread.h"
28 
29 ///< current MB is the first after a resync marker
30 #define VP_START 1
31 #define ER_AC_ERROR 2
32 #define ER_DC_ERROR 4
33 #define ER_MV_ERROR 8
34 #define ER_AC_END 16
35 #define ER_DC_END 32
36 #define ER_MV_END 64
37 
38 #define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
39 #define ER_MB_END (ER_AC_END|ER_DC_END|ER_MV_END)
40 
41 typedef struct ERPicture {
44 
45  // it's the caller's responsibility to allocate these buffers
46  int16_t (*motion_val[2])[2];
47  int8_t *ref_index[2];
48 
49  uint32_t *mb_type;
51 } ERPicture;
52 
53 typedef struct ERContext {
57 
59  int mb_num;
61  int mb_stride;
62  int b8_stride;
63 
64  volatile int error_count;
68  int16_t *dc_val[3];
71  int mv[2][4][2];
72 
76 
79 
80  uint16_t pp_time;
81  uint16_t pb_time;
84  int ref_count;
85 
86  void (*decode_mb)(void *opaque, int ref, int mv_dir, int mv_type,
87  int (*mv)[2][4][2],
88  int mb_x, int mb_y, int mb_intra, int mb_skipped);
89  void *opaque;
90 } ERContext;
91 
94 void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy,
95  int status);
96 
97 #endif /* AVCODEC_ERROR_RESILIENCE_H */