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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 #ifndef AVCODEC_H265_PROFILE_LEVEL_H
20 #define AVCODEC_H265_PROFILE_LEVEL_H
21 
22 #include <stdint.h>
23 
24 #include "cbs_h265.h"
25 
26 
27 typedef struct H265LevelDescriptor {
28     const char *name;
29     uint8_t     level_idc;
30 
31     // Table A.6.
32     uint32_t    max_luma_ps;
33     uint32_t    max_cpb_main;
34     uint32_t    max_cpb_high;
35     uint16_t    max_slice_segments_per_picture;
36     uint8_t     max_tile_rows;
37     uint8_t     max_tile_cols;
38 
39     // Table A.7.
40     uint32_t    max_luma_sr;
41     uint32_t    max_br_main;
42     uint32_t    max_br_high;
43     uint8_t     min_cr_base_main;
44     uint8_t     min_cr_base_high;
45 } H265LevelDescriptor;
46 
47 typedef struct H265ProfileDescriptor {
48     const char *name;
49     uint8_t profile_idc;
50     uint8_t high_throughput;
51 
52     // Tables A.2, A.3 and A.5.
53     uint8_t max_14bit;
54     uint8_t max_12bit;
55     uint8_t max_10bit;
56     uint8_t max_8bit;
57     uint8_t max_422chroma;
58     uint8_t max_420chroma;
59     uint8_t max_monochrome;
60     uint8_t intra;
61     uint8_t one_picture_only;
62     uint8_t lower_bit_rate;
63 
64     // Table A.8.
65     uint16_t cpb_vcl_factor;
66     uint16_t cpb_nal_factor;
67     float format_capability_factor;
68     float min_cr_scale_factor;
69     uint8_t max_dpb_pic_buf;
70 } H265ProfileDescriptor;
71 
72 
73 const H265ProfileDescriptor *ff_h265_get_profile(const H265RawProfileTierLevel *ptl);
74 
75 
76 /**
77  * Guess the level of a stream from some parameters.
78  *
79  * Unknown parameters may be zero, in which case they are ignored.
80  */
81 const H265LevelDescriptor *ff_h265_guess_level(const H265RawProfileTierLevel *ptl,
82                                                int64_t bitrate,
83                                                int width, int height,
84                                                int slice_segments,
85                                                int tile_rows, int tile_cols,
86                                                int max_dec_pic_buffering);
87 
88 #endif /* AVCODEC_H265_PROFILE_LEVEL_H */
89