1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
#include "h264.h"
#include "thread.h"
static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
int y_offset, int list){
int raw_my= h->mv_cache[list][ scan8[n] ][1];
int filter_height= (raw_my&3) ? 2 : 0;
int full_my= (raw_my>>2) + y_offset;
int top = full_my - filter_height, bottom = full_my + height + filter_height;
return FFMAX(abs(top), bottom);
}
static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
int y_offset, int list0, int list1, int *nrefs){
MpegEncContext * const s = &h->s;
int my;
y_offset += 16*(s->mb_y >> MB_FIELD);
if(list0){
int ref_n = h->ref_cache[0][ scan8[n] ];
Picture *ref= &h->ref_list[0][ref_n];
// Error resilience puts the current picture in the ref list.
// Don't try to wait on these as it will cause a deadlock.
// Fields can wait on each other, though.
if(ref->thread_opaque != s->current_picture.thread_opaque ||
(ref->reference&3) != s->picture_structure) {
my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
if (refs[0][ref_n] < 0) nrefs[0] += 1;
refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
}
}
if(list1){
int ref_n = h->ref_cache[1][ scan8[n] ];
Picture *ref= &h->ref_list[1][ref_n];
if(ref->thread_opaque != s->current_picture.thread_opaque ||
(ref->reference&3) != s->picture_structure) {
my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
if (refs[1][ref_n] < 0) nrefs[1] += 1;
refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
}
}
}
/**
* Wait until all reference frames are available for MC operations.
*
* @param h the H264 context
*/
static void await_references(H264Context *h){
MpegEncContext * const s = &h->s;
const int mb_xy= h->mb_xy;
const int mb_type= s->current_picture.mb_type[mb_xy];
int refs[2][48];
int nrefs[2] = {0};
int ref, list;
memset(refs, -1, sizeof(refs));
if(IS_16X16(mb_type)){
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
}else if(IS_16X8(mb_type)){
get_lowest_part_y(h, refs, 0, 8, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 8, 8, 8,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
}else if(IS_8X16(mb_type)){
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 4, 16, 0,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
}else{
int i;
assert(IS_8X8(mb_type));
for(i=0; i<4; i++){
const int sub_mb_type= h->sub_mb_type[i];
const int n= 4*i;
int y_offset= (i&2)<<2;
if(IS_SUB_8X8(sub_mb_type)){
get_lowest_part_y(h, refs, n , 8, y_offset,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
}else if(IS_SUB_8X4(sub_mb_type)){
get_lowest_part_y(h, refs, n , 4, y_offset,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
}else if(IS_SUB_4X8(sub_mb_type)){
get_lowest_part_y(h, refs, n , 8, y_offset,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, n+1, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
}else{
int j;
assert(IS_SUB_4X4(sub_mb_type));
for(j=0; j<4; j++){
int sub_y_offset= y_offset + 2*(j&2);
get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
}
}
}
}
for(list=h->list_count-1; list>=0; list--){
for(ref=0; ref<48 && nrefs[list]; ref++){
int row = refs[list][ref];
if(row >= 0){
Picture *ref_pic = &h->ref_list[list][ref];
int ref_field = ref_pic->reference - 1;
int ref_field_picture = ref_pic->field_picture;
int pic_height = 16*s->mb_height >> ref_field_picture;
row <<= MB_MBAFF;
nrefs[list]--;
if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
}else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
}else if(FIELD_PICTURE){
ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
}else{
ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
}
}
}
}
}
#define FUNC(a) a ## _8
#define PIXEL_SHIFT 0
#include "h264_hl_motion.h"
#undef PIXEL_SHIFT
#undef FUNC
#define FUNC(a) a ## _16
#define PIXEL_SHIFT 1
#include "h264_hl_motion.h"
void ff_hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
h264_weight_func *weight_op, h264_biweight_func *weight_avg){
if(h->pixel_shift){
hl_motion_16(h, dest_y, dest_cb, dest_cr,
qpix_put, chroma_put,
qpix_avg, chroma_avg,
weight_op, weight_avg);
}else
hl_motion_8(h, dest_y, dest_cb, dest_cr,
qpix_put, chroma_put,
qpix_avg, chroma_avg,
weight_op, weight_avg);
}
|
