Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / mpeg_er.c
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 static 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
46 void 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 }