FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/mpeg_er.c
Date: 2022-01-28 07:56:06
Exec Total Coverage
Lines: 70 77 90.9%
Branches: 10 14 71.4%
Line Branch Exec Source
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 #include "error_resilience.h"
20 #include "mpegvideo.h"
21 #include "mpeg_er.h"
22
23 32385 static void set_erpic(ERPicture *dst, Picture *src)
24 {
25 int i;
26
27 32385 memset(dst, 0, sizeof(*dst));
28
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 32385 if (!src) {
29 288 dst->f = NULL;
30 288 dst->tf = NULL;
31 288 return;
32 }
33
34 32097 dst->f = src->f;
35 32097 dst->tf = &src->tf;
36
37
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 96291 for (i = 0; i < 2; i++) {
38 64194 dst->motion_val[i] = src->motion_val[i];
39 64194 dst->ref_index[i] = src->ref_index[i];
40 }
41
42 32097 dst->mb_type = src->mb_type;
43 32097 dst->field_picture = src->field_picture;
44 }
45
46 10795 void ff_mpeg_er_frame_start(MpegEncContext *s)
47 {
48 10795 ERContext *er = &s->er;
49
50 10795 set_erpic(&er->cur_pic, s->current_picture_ptr);
51 10795 set_erpic(&er->next_pic, s->next_picture_ptr);
52 10795 set_erpic(&er->last_pic, s->last_picture_ptr);
53
54 10795 er->pp_time = s->pp_time;
55 10795 er->pb_time = s->pb_time;
56 10795 er->quarter_sample = s->quarter_sample;
57 10795 er->partitioned_frame = s->partitioned_frame;
58
59 10795 ff_er_frame_start(er);
60 10795 }
61
62 59062 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
63 int (*mv)[2][4][2], int mb_x, int mb_y,
64 int mb_intra, int mb_skipped)
65 {
66 59062 MpegEncContext *s = opaque;
67
68 59062 s->mv_dir = mv_dir;
69 59062 s->mv_type = mv_type;
70 59062 s->mb_intra = mb_intra;
71 59062 s->mb_skipped = mb_skipped;
72 59062 s->mb_x = mb_x;
73 59062 s->mb_y = mb_y;
74 59062 s->mcsel = 0;
75 59062 memcpy(s->mv, mv, sizeof(*mv));
76
77 59062 ff_init_block_index(s);
78 59062 ff_update_block_index(s);
79
80 59062 s->bdsp.clear_blocks(s->block[0]);
81
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 59062 if (!s->chroma_y_shift)
82 ✗ s->bdsp.clear_blocks(s->block[6]);
83
84 59062 s->dest[0] = s->current_picture.f->data[0] +
85 59062 s->mb_y * 16 * s->linesize +
86 59062 s->mb_x * 16;
87 59062 s->dest[1] = s->current_picture.f->data[1] +
88 59062 s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
89 59062 s->mb_x * (16 >> s->chroma_x_shift);
90 59062 s->dest[2] = s->current_picture.f->data[2] +
91 59062 s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
92 59062 s->mb_x * (16 >> s->chroma_x_shift);
93
94
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 59062 if (ref)
95 ✗ av_log(s->avctx, AV_LOG_DEBUG,
96 "Interlaced error concealment is not fully implemented\n");
97 59062 ff_mpv_reconstruct_mb(s, s->block);
98 59062 }
99
100 611 int ff_mpeg_er_init(MpegEncContext *s)
101 {
102 611 ERContext *er = &s->er;
103 611 int mb_array_size = s->mb_height * s->mb_stride;
104 int i;
105
106 611 er->avctx = s->avctx;
107
108 611 er->mb_index2xy = s->mb_index2xy;
109 611 er->mb_num = s->mb_num;
110 611 er->mb_width = s->mb_width;
111 611 er->mb_height = s->mb_height;
112 611 er->mb_stride = s->mb_stride;
113 611 er->b8_stride = s->b8_stride;
114
115 611 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride * (4*sizeof(int) + 1));
116 611 er->error_status_table = av_mallocz(mb_array_size);
117
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 611 if (!er->er_temp_buffer || !er->error_status_table)
118 ✗ goto fail;
119
120 611 er->mbskip_table = s->mbskip_table;
121 611 er->mbintra_table = s->mbintra_table;
122
123
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 2444 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
124 1833 er->dc_val[i] = s->dc_val[i];
125
126 611 er->decode_mb = mpeg_er_decode_mb;
127 611 er->opaque = s;
128
129 611 return 0;
130 ✗ fail:
131 ✗ av_freep(&er->er_temp_buffer);
132 ✗ av_freep(&er->error_status_table);
133 ✗ return AVERROR(ENOMEM);
134 }
135