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
|
/*
* Copyright (C) 2008 Julian Scheel
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* dpb.h: Decoded Picture Buffer
*/
#ifndef DPB_H_
#define DPB_H_
#define MAX_DPB_SIZE 16
#include "nal.h"
#include "cpb.h"
#include <xine/video_out.h>
struct decoded_picture {
VdpVideoSurface surface;
vo_frame_t *img; /* this is the image we block, to make sure
* the surface is not double-used */
/**
* a decoded picture always contains a whole frame,
* respective a field pair, so it can contain up to
* 2 coded pics
*/
struct coded_picture *coded_pic[2];
int32_t frame_num_wrap;
uint8_t used_for_reference;
uint8_t top_is_reference;
uint8_t bottom_is_reference;
uint8_t delayed_output;
struct decoded_picture *next;
uint32_t lock_counter;
};
/* Decoded Picture Buffer */
struct dpb {
struct decoded_picture *pictures;
uint32_t num_ref_frames;
uint32_t used;
};
struct decoded_picture* init_decoded_picture(struct coded_picture *cpic,
VdpVideoSurface surface, vo_frame_t *img);
void release_decoded_picture(struct decoded_picture *pic);
void lock_decoded_picture(struct decoded_picture *pic);
void dpb_add_coded_picture(struct decoded_picture *pic,
struct coded_picture *cpic);
/**
* returns the following picture from dpb, that is used for
* reference. if pic == NULL it returns the first ref pic in dpb
*/
struct decoded_picture* dpb_get_next_ref_pic(struct dpb *dpb,
struct decoded_picture *pic);
struct decoded_picture* dpb_get_next_out_picture(struct dpb *dpb, int do_flush);
struct decoded_picture* dpb_get_picture(struct dpb *dpb, uint32_t picnum);
struct decoded_picture* dpb_get_picture_by_ltpn(struct dpb *dpb, uint32_t longterm_picnum);
struct decoded_picture* dpb_get_picture_by_ltidx(struct dpb *dpb, uint32_t longterm_idx);
int dpb_set_unused_ref_picture(struct dpb *dpb, uint32_t picnum);
int dpb_set_unused_ref_picture_a(struct dpb *dpb, struct decoded_picture *refpic);
int dpb_set_unused_ref_picture_byltpn(struct dpb *dpb, uint32_t longterm_picnum);
int dpb_set_unused_ref_picture_bylidx(struct dpb *dpb, uint32_t longterm_idx);
int dpb_set_unused_ref_picture_lidx_gt(struct dpb *dpb, int32_t longterm_idx);
int dpb_set_output_picture(struct dpb *dpb, struct decoded_picture *outpic);
int dpb_remove_picture(struct dpb *dpb, struct decoded_picture *rempic);
int dpb_add_picture(struct dpb *dpb, struct decoded_picture *pic, uint32_t num_ref_frames);
int dpb_flush(struct dpb *dpb);
void dpb_free_all( struct dpb *dpb );
void dpb_clear_all_pts( struct dpb *dpb );
int fill_vdpau_reference_list(struct dpb *dpb, VdpReferenceFrameH264 *reflist);
static int dp_top_field_first(struct decoded_picture *decoded_pic)
{
int top_field_first = 0;
if (decoded_pic->coded_pic[0]->slc_nal->slc.field_pic_flag == 0) {
top_field_first = 1;
} else {
if (decoded_pic->coded_pic[1] != NULL) {
top_field_first = (decoded_pic->coded_pic[0]->top_field_order_cnt <= decoded_pic->coded_pic[1]->bottom_field_order_cnt);
} else {
top_field_first = (decoded_pic->coded_pic[0]->top_field_order_cnt <= decoded_pic->coded_pic[0]->bottom_field_order_cnt);
}
}
return top_field_first;
}
#endif /* DPB_H_ */
|
