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
23static void set_erpic(ERPicture *dst, Picture *src)
24{
25    int i;
26
27    memset(dst, 0, sizeof(*dst));
28    if (!src) {
29        dst->f  = NULL;
30        dst->tf = NULL;
31        return;
32    }
33
34    dst->f = src->f;
35    dst->tf = &src->tf;
36
37    for (i = 0; i < 2; i++) {
38        dst->motion_val[i] = src->motion_val[i];
39        dst->ref_index[i] = src->ref_index[i];
40    }
41
42    dst->mb_type = src->mb_type;
43    dst->field_picture = src->field_picture;
44}
45
46void ff_mpeg_er_frame_start(MpegEncContext *s)
47{
48    ERContext *er = &s->er;
49
50    set_erpic(&er->cur_pic,  s->current_picture_ptr);
51    set_erpic(&er->next_pic, s->next_picture_ptr);
52    set_erpic(&er->last_pic, s->last_picture_ptr);
53
54    er->pp_time           = s->pp_time;
55    er->pb_time           = s->pb_time;
56    er->quarter_sample    = s->quarter_sample;
57    er->partitioned_frame = s->partitioned_frame;
58
59    ff_er_frame_start(er);
60}
61