FFmpeg
error_resilience.h
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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 #ifndef AVCODEC_ERROR_RESILIENCE_H
20 #define AVCODEC_ERROR_RESILIENCE_H
21 
22 #include <stdint.h>
23 #include <stdatomic.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 is 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;
60  int mb_width, mb_height;
61  ptrdiff_t mb_stride;
62  ptrdiff_t b8_stride;
63 
68  int16_t *dc_val[3];
71  int mv[2][4][2];
72 
76 
77  AVBufferRef *ref_index_buf[2];
78  AVBufferRef *motion_val_buf[2];
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 */
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
uint32_t * mb_type
ERPicture last_pic
intptr_t atomic_int
Definition: stdatomic.h:55
uint16_t pp_time
ptrdiff_t b8_stride
uint8_t
Multithreading support functions.
ERPicture cur_pic
ThreadFrame * tf
uint8_t * mbintra_table
int * mb_index2xy
uint8_t * error_status_table
uint8_t * er_temp_buffer
void ff_er_frame_end(ERContext *s)
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
uint16_t pb_time
static int decode_mb(ASV1Context *a, int16_t block[6][64])
Definition: asvdec.c:164
#define s(width, name)
Definition: cbs_vp9.c:257
static const int8_t mv[256][2]
Definition: 4xm.c:77
Libavcodec external API header.
ERPicture next_pic
main external API structure.
Definition: avcodec.h:1565
void ff_er_frame_start(ERContext *s)
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
MECmpContext mecc
AVCodecContext * avctx
int8_t * ref_index[2]
A reference to a data buffer.
Definition: buffer.h:81
void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy, int status)
Add a slice.
int
int partitioned_frame
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
AVFrame * f
int16_t(*[2] motion_val)[2]
atomic_int error_count
ptrdiff_t mb_stride
uint8_t * mbskip_table