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
|
/*
* DOVI ISO Media common code
*
* Copyright (c) 2020 Vacing Fang <vacingfang@tencent.com>
* Copyright (c) 2021 quietvoid
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/dovi_meta.h"
#include "libavcodec/put_bits.h"
#include "avformat.h"
#include "dovi_isom.h"
int ff_isom_parse_dvcc_dvvc(void *logctx, AVStream *st,
const uint8_t *buf_ptr, uint64_t size)
{
uint32_t buf;
AVDOVIDecoderConfigurationRecord *dovi;
size_t dovi_size;
int ret;
if (size > (1 << 30) || size < 4)
return AVERROR_INVALIDDATA;
dovi = av_dovi_alloc(&dovi_size);
if (!dovi)
return AVERROR(ENOMEM);
dovi->dv_version_major = *buf_ptr++; // 8 bits
dovi->dv_version_minor = *buf_ptr++; // 8 bits
buf = *buf_ptr++ << 8;
buf |= *buf_ptr++;
dovi->dv_profile = (buf >> 9) & 0x7f; // 7 bits
dovi->dv_level = (buf >> 3) & 0x3f; // 6 bits
dovi->rpu_present_flag = (buf >> 2) & 0x01; // 1 bit
dovi->el_present_flag = (buf >> 1) & 0x01; // 1 bit
dovi->bl_present_flag = buf & 0x01; // 1 bit
// Has enough remaining data
if (size >= 5) {
dovi->dv_bl_signal_compatibility_id = ((*buf_ptr++) >> 4) & 0x0f; // 4 bits
} else {
// 0 stands for None
// Dolby Vision V1.2.93 profiles and levels
dovi->dv_bl_signal_compatibility_id = 0;
}
ret = av_stream_add_side_data(st, AV_PKT_DATA_DOVI_CONF,
(uint8_t *)dovi, dovi_size);
if (ret < 0) {
av_free(dovi);
return ret;
}
av_log(logctx, AV_LOG_TRACE, "DOVI in dvcC/dvvC/dvwC box, version: %d.%d, profile: %d, level: %d, "
"rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
dovi->dv_version_major, dovi->dv_version_minor,
dovi->dv_profile, dovi->dv_level,
dovi->rpu_present_flag,
dovi->el_present_flag,
dovi->bl_present_flag,
dovi->dv_bl_signal_compatibility_id);
return 0;
}
void ff_isom_put_dvcc_dvvc(void *logctx, uint8_t out[ISOM_DVCC_DVVC_SIZE],
const AVDOVIDecoderConfigurationRecord *dovi)
{
PutBitContext pb;
init_put_bits(&pb, out, ISOM_DVCC_DVVC_SIZE);
put_bits(&pb, 8, dovi->dv_version_major);
put_bits(&pb, 8, dovi->dv_version_minor);
put_bits(&pb, 7, dovi->dv_profile & 0x7f);
put_bits(&pb, 6, dovi->dv_level & 0x3f);
put_bits(&pb, 1, !!dovi->rpu_present_flag);
put_bits(&pb, 1, !!dovi->el_present_flag);
put_bits(&pb, 1, !!dovi->bl_present_flag);
put_bits(&pb, 4, dovi->dv_bl_signal_compatibility_id & 0x0f);
put_bits(&pb, 28, 0); /* reserved */
put_bits32(&pb, 0); /* reserved */
put_bits32(&pb, 0); /* reserved */
put_bits32(&pb, 0); /* reserved */
put_bits32(&pb, 0); /* reserved */
flush_put_bits(&pb);
av_log(logctx, AV_LOG_DEBUG,
"DOVI in %s box, version: %d.%d, profile: %d, level: %d, "
"rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
dovi->dv_profile > 10 ? "dvwC" : (dovi->dv_profile > 7 ? "dvvC" : "dvcC"),
dovi->dv_version_major, dovi->dv_version_minor,
dovi->dv_profile, dovi->dv_level,
dovi->rpu_present_flag,
dovi->el_present_flag,
dovi->bl_present_flag,
dovi->dv_bl_signal_compatibility_id);
}
|
