2 * This file is part of FFmpeg.
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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.
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
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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
19 #include "h265_profile_level.h"
22 static const H265LevelDescriptor h265_levels[] = {
23 // Name CpbFactor-Main MaxSliceSegmentsPerPicture
24 // | level_idc | CpbFactor-High MaxLumaSr BrFactor-High
25 // | | MaxLumaPs | | | MaxTileRows | BrFactor-Main | MinCr-Main
26 // | | | | | | | MaxTileCols | | | MinCr-High
27 { "1", 30, 36864, 350, 0, 16, 1, 1, 552960, 128, 0, 2, 2 },
28 { "2", 60, 122880, 1500, 0, 16, 1, 1, 3686400, 1500, 0, 2, 2 },
29 { "2.1", 63, 245760, 3000, 0, 20, 1, 1, 7372800, 3000, 0, 2, 2 },
30 { "3", 90, 552960, 6000, 0, 30, 2, 2, 16588800, 6000, 0, 2, 2 },
31 { "3.1", 93, 983040, 10000, 0, 40, 3, 3, 33177600, 10000, 0, 2, 2 },
32 { "4", 120, 2228224, 12000, 30000, 75, 5, 5, 66846720, 12000, 30000, 4, 4 },
33 { "4.1", 123, 2228224, 20000, 50000, 75, 5, 5, 133693440, 20000, 50000, 4, 4 },
34 { "5", 150, 8912896, 25000, 100000, 200, 11, 10, 267386880, 25000, 100000, 6, 4 },
35 { "5.1", 153, 8912896, 40000, 160000, 200, 11, 10, 534773760, 40000, 160000, 8, 4 },
36 { "5.2", 156, 8912896, 60000, 240000, 200, 11, 10, 1069547520, 60000, 240000, 8, 4 },
37 { "6", 180, 35651584, 60000, 240000, 600, 22, 20, 1069547520, 60000, 240000, 8, 4 },
38 { "6.1", 183, 35651584, 120000, 480000, 600, 22, 20, 2139095040, 120000, 480000, 8, 4 },
39 { "6.2", 186, 35651584, 240000, 800000, 600, 22, 20, 4278190080, 240000, 800000, 6, 4 },
42 static const H265ProfileDescriptor h265_profiles[] = {
43 // profile_idc 8bit one-picture
44 // HT-profile | 422chroma | lower-bit-rate
45 // | 14bit | | 420chroma | | CpbVclFactor MinCrScaleFactor
46 // | | 12bit | | | monochrome| | CpbNalFactor |
47 // | | | 10bit | | | intra | | | FormatCapabilityFactor
48 { "Monochrome", // | | | | | | | | | |
49 4, 0, 2, 1, 1, 1, 1, 1, 1, 0, 0, 1, 667, 733, 1.000, 1.0 },
51 4, 0, 2, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1000, 1100, 1.500, 1.0 },
53 4, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1333, 1467, 2.000, 1.0 },
55 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0 },
56 { "Screen-Extended Main",
57 9, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.500, 1.0 },
59 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.875, 1.0 },
60 { "Screen-Extended Main 10",
61 9, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.875, 1.0 },
63 4, 0, 2, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1500, 1650, 2.250, 1.0 },
64 { "Main Still Picture",
65 3, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0 },
67 4, 0, 2, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1667, 1833, 2.500, 0.5 },
69 4, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5 },
71 4, 0, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5 },
72 { "High Throughput 4:4:4",
73 5, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5 },
74 { "Screen-Extended Main 4:4:4",
75 9, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5 },
76 { "Screen-Extended High Throughput 4:4:4",
77 9, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5 },
79 4, 0, 2, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5 },
80 { "High Throughput 4:4:4 10",
81 5, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5 },
82 { "Screen-Extended Main 4:4:4 10",
83 9, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5 },
84 { "Screen-Extended High Throughput 4:4:4 10",
85 9, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5 },
87 4, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 1, 3000, 3300, 4.500, 0.5 },
88 { "High Throughput 4:4:4 14",
89 5, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5 },
90 { "Screen-Extended High Throughput 4:4:4 14",
91 9, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5 },
93 4, 0, 2, 1, 1, 1, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.500, 1.0 },
95 4, 0, 2, 1, 1, 0, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.875, 1.0 },
97 4, 0, 2, 1, 0, 0, 1, 1, 0, 1, 0, 2, 1500, 1650, 2.250, 1.0 },
98 { "Main 4:2:2 10 Intra",
99 4, 0, 2, 1, 1, 0, 1, 0, 0, 1, 0, 2, 1667, 1833, 2.500, 0.5 },
100 { "Main 4:2:2 12 Intra",
101 4, 0, 2, 1, 0, 0, 1, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5 },
102 { "Main 4:4:4 Intra",
103 4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5 },
104 { "Main 4:4:4 10 Intra",
105 4, 0, 2, 1, 1, 0, 0, 0, 0, 1, 0, 2, 2500, 2750, 3.750, 0.5 },
106 { "Main 4:4:4 12 Intra",
107 4, 0, 2, 1, 0, 0, 0, 0, 0, 1, 0, 2, 3000, 3300, 4.500, 0.5 },
108 { "Main 4:4:4 16 Intra",
109 4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5 },
110 { "Main 4:4:4 Still Picture",
111 4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 1, 2, 2000, 2200, 3.000, 0.5 },
112 { "Main 4:4:4 16 Still Picture",
113 4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 1, 2, 4000, 4400, 6.000, 0.5 },
114 { "High Throughput 4:4:4 16 Intra",
115 5, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5 },
119 const H265LevelDescriptor *ff_h265_get_level(int level_idc)
123 for (i = 0; i < FF_ARRAY_ELEMS(h265_levels); i++) {
124 if (h265_levels[i].level_idc == level_idc)
125 return &h265_levels[i];
131 const H265ProfileDescriptor *ff_h265_get_profile(const H265RawProfileTierLevel *ptl)
135 if (ptl->general_profile_space)
138 for (i = 0; i < FF_ARRAY_ELEMS(h265_profiles); i++) {
139 const H265ProfileDescriptor *profile = &h265_profiles[i];
141 if (ptl->general_profile_idc &&
142 ptl->general_profile_idc != profile->profile_idc)
144 if (!ptl->general_profile_compatibility_flag[profile->profile_idc])
147 #define check_flag(name) \
148 if (profile->name < 2) { \
149 if (profile->name != ptl->general_ ## name ## _constraint_flag) \
152 check_flag(max_14bit);
153 check_flag(max_12bit);
154 check_flag(max_10bit);
155 check_flag(max_8bit);
156 check_flag(max_422chroma);
157 check_flag(max_420chroma);
158 check_flag(max_monochrome);
160 check_flag(one_picture_only);
161 check_flag(lower_bit_rate);
170 const H265LevelDescriptor *ff_h265_guess_level(const H265RawProfileTierLevel *ptl,
172 int width, int height,
174 int tile_rows, int tile_cols,
175 int max_dec_pic_buffering)
177 const H265ProfileDescriptor *profile;
178 int pic_size, lbr_flag, hbr_factor;
182 profile = ff_h265_get_profile(ptl);
186 // Default to using multiplication factors for Main profile.
187 profile = &h265_profiles[3];
190 pic_size = width * height;
193 lbr_flag = ptl->general_lower_bit_rate_constraint_flag;
195 lbr_flag = profile->lower_bit_rate > 0;
196 if (profile->profile_idc == 1 || profile->profile_idc == 2) {
198 } else if (profile->high_throughput) {
200 hbr_factor = 24 - 12 * lbr_flag;
204 hbr_factor = 2 - lbr_flag;
207 for (i = 0; i < FF_ARRAY_ELEMS(h265_levels); i++) {
208 const H265LevelDescriptor *level = &h265_levels[i];
209 int max_br, max_dpb_size;
211 if (pic_size > level->max_luma_ps)
213 if (width * width > 8 * level->max_luma_ps)
215 if (height * height > 8 * level->max_luma_ps)
218 if (slice_segments > level->max_slice_segments_per_picture)
220 if (tile_rows > level->max_tile_rows)
222 if (tile_cols > level->max_tile_cols)
225 if (ptl && ptl->general_tier_flag)
226 max_br = level->max_br_high;
228 max_br = level->max_br_main;
231 if (bitrate > (int64_t)profile->cpb_nal_factor * hbr_factor * max_br)
234 if (pic_size < (level->max_luma_ps >> 2))
236 else if (pic_size < (level->max_luma_ps >> 1))
238 else if (pic_size < (3 * level->max_luma_ps >> 2))
242 if (max_dec_pic_buffering > max_dpb_size)