| /* |
| * 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 "h265_profile_level.h" |
| |
| |
| static const H265LevelDescriptor h265_levels[] = { |
| // Name CpbFactor-Main MaxSliceSegmentsPerPicture |
| // | level_idc | CpbFactor-High MaxLumaSr BrFactor-High |
| // | | MaxLumaPs | | | MaxTileRows | BrFactor-Main | MinCr-Main |
| // | | | | | | | MaxTileCols | | | MinCr-High |
| { "1", 30, 36864, 350, 0, 16, 1, 1, 552960, 128, 0, 2, 2 }, |
| { "2", 60, 122880, 1500, 0, 16, 1, 1, 3686400, 1500, 0, 2, 2 }, |
| { "2.1", 63, 245760, 3000, 0, 20, 1, 1, 7372800, 3000, 0, 2, 2 }, |
| { "3", 90, 552960, 6000, 0, 30, 2, 2, 16588800, 6000, 0, 2, 2 }, |
| { "3.1", 93, 983040, 10000, 0, 40, 3, 3, 33177600, 10000, 0, 2, 2 }, |
| { "4", 120, 2228224, 12000, 30000, 75, 5, 5, 66846720, 12000, 30000, 4, 4 }, |
| { "4.1", 123, 2228224, 20000, 50000, 75, 5, 5, 133693440, 20000, 50000, 4, 4 }, |
| { "5", 150, 8912896, 25000, 100000, 200, 11, 10, 267386880, 25000, 100000, 6, 4 }, |
| { "5.1", 153, 8912896, 40000, 160000, 200, 11, 10, 534773760, 40000, 160000, 8, 4 }, |
| { "5.2", 156, 8912896, 60000, 240000, 200, 11, 10, 1069547520, 60000, 240000, 8, 4 }, |
| { "6", 180, 35651584, 60000, 240000, 600, 22, 20, 1069547520, 60000, 240000, 8, 4 }, |
| { "6.1", 183, 35651584, 120000, 480000, 600, 22, 20, 2139095040, 120000, 480000, 8, 4 }, |
| { "6.2", 186, 35651584, 240000, 800000, 600, 22, 20, 4278190080, 240000, 800000, 6, 4 }, |
| }; |
| |
| static const H265ProfileDescriptor h265_profiles[] = { |
| // profile_idc 8bit one-picture |
| // HT-profile | 422chroma | lower-bit-rate |
| // | 14bit | | 420chroma | | CpbVclFactor MinCrScaleFactor |
| // | | 12bit | | | monochrome| | CpbNalFactor | maxDpbPicBuf |
| // | | | 10bit | | | intra | | | FormatCapabilityFactor |
| { "Monochrome", // | | | | | | | | | | | |
| 4, 0, 2, 1, 1, 1, 1, 1, 1, 0, 0, 1, 667, 733, 1.000, 1.0, 6 }, |
| { "Monochrome 10", |
| 4, 0, 2, 1, 1, 0, 1, 1, 1, 0, 0, 1, 833, 917, 1.250, 1.0, 6 }, |
| { "Monochrome 12", |
| 4, 0, 2, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1000, 1100, 1.500, 1.0, 6 }, |
| { "Monochrome 16", |
| 4, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1333, 1467, 2.000, 1.0, 6 }, |
| { "Main", |
| 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0, 6 }, |
| { "Screen-Extended Main", |
| 9, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.500, 1.0, 7 }, |
| { "Main 10", |
| 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 1000, 1100, 1.875, 1.0, 6 }, |
| { "Screen-Extended Main 10", |
| 9, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.875, 1.0, 7 }, |
| { "Main 12", |
| 4, 0, 2, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1500, 1650, 2.250, 1.0, 6 }, |
| { "Main Still Picture", |
| 3, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0, 6 }, |
| { "Main 10 Still Picture", |
| 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1000, 1100, 1.875, 1.0, 6 }, |
| { "Main 4:2:2 10", |
| 4, 0, 2, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1667, 1833, 2.500, 0.5, 6 }, |
| { "Main 4:2:2 12", |
| 4, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 }, |
| { "Main 4:4:4", |
| 4, 0, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 }, |
| { "High Throughput 4:4:4", |
| 5, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 }, |
| { "Screen-Extended Main 4:4:4", |
| 9, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 7 }, |
| { "Screen-Extended High Throughput 4:4:4", |
| 9, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 7 }, |
| { "Main 4:4:4 10", |
| 4, 0, 2, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 6 }, |
| { "High Throughput 4:4:4 10", |
| 5, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 6 }, |
| { "Screen-Extended Main 4:4:4 10", |
| 9, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 7 }, |
| { "Screen-Extended High Throughput 4:4:4 10", |
| 9, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 7 }, |
| { "Main 4:4:4 12", |
| 4, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 1, 3000, 3300, 4.500, 0.5, 6 }, |
| { "High Throughput 4:4:4 14", |
| 5, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5, 6 }, |
| { "Screen-Extended High Throughput 4:4:4 14", |
| 9, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5, 7 }, |
| { "Main Intra", |
| 4, 0, 2, 1, 1, 1, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.500, 1.0, 6 }, |
| { "Main 10 Intra", |
| 4, 0, 2, 1, 1, 0, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.875, 1.0, 6 }, |
| { "Main 12 Intra", |
| 4, 0, 2, 1, 0, 0, 1, 1, 0, 1, 0, 2, 1500, 1650, 2.250, 1.0, 6 }, |
| { "Main 4:2:2 10 Intra", |
| 4, 0, 2, 1, 1, 0, 1, 0, 0, 1, 0, 2, 1667, 1833, 2.500, 0.5, 6 }, |
| { "Main 4:2:2 12 Intra", |
| 4, 0, 2, 1, 0, 0, 1, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5, 6 }, |
| { "Main 4:4:4 Intra", |
| 4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5, 6 }, |
| { "Main 4:4:4 10 Intra", |
| 4, 0, 2, 1, 1, 0, 0, 0, 0, 1, 0, 2, 2500, 2750, 3.750, 0.5, 6 }, |
| { "Main 4:4:4 12 Intra", |
| 4, 0, 2, 1, 0, 0, 0, 0, 0, 1, 0, 2, 3000, 3300, 4.500, 0.5, 6 }, |
| { "Main 4:4:4 16 Intra", |
| 4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5, 6 }, |
| { "Main 4:4:4 Still Picture", |
| 4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 1, 2, 2000, 2200, 3.000, 0.5, 6 }, |
| { "Main 4:4:4 16 Still Picture", |
| 4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 1, 2, 4000, 4400, 6.000, 0.5, 6 }, |
| { "High Throughput 4:4:4 16 Intra", |
| 5, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5, 6 }, |
| }; |
| |
| |
| const H265LevelDescriptor *ff_h265_get_level(int level_idc) |
| { |
| int i; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(h265_levels); i++) { |
| if (h265_levels[i].level_idc == level_idc) |
| return &h265_levels[i]; |
| } |
| |
| return NULL; |
| } |
| |
| const H265ProfileDescriptor *ff_h265_get_profile(const H265RawProfileTierLevel *ptl) |
| { |
| int i; |
| |
| if (ptl->general_profile_space) |
| return NULL; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(h265_profiles); i++) { |
| const H265ProfileDescriptor *profile = &h265_profiles[i]; |
| |
| if (ptl->general_profile_idc && |
| ptl->general_profile_idc != profile->profile_idc) |
| continue; |
| if (!ptl->general_profile_compatibility_flag[profile->profile_idc]) |
| continue; |
| |
| #define check_flag(name) \ |
| if (profile->name < 2) { \ |
| if (profile->name != ptl->general_ ## name ## _constraint_flag) \ |
| continue; \ |
| } |
| check_flag(max_14bit); |
| check_flag(max_12bit); |
| check_flag(max_10bit); |
| check_flag(max_8bit); |
| check_flag(max_422chroma); |
| check_flag(max_420chroma); |
| check_flag(max_monochrome); |
| check_flag(intra); |
| check_flag(one_picture_only); |
| check_flag(lower_bit_rate); |
| #undef check_flag |
| |
| return profile; |
| } |
| |
| return NULL; |
| } |
| |
| const H265LevelDescriptor *ff_h265_guess_level(const H265RawProfileTierLevel *ptl, |
| int64_t bitrate, |
| int width, int height, |
| int slice_segments, |
| int tile_rows, int tile_cols, |
| int max_dec_pic_buffering) |
| { |
| const H265ProfileDescriptor *profile; |
| int pic_size, tier_flag, lbr_flag, hbr_factor; |
| int i; |
| |
| if (ptl) |
| profile = ff_h265_get_profile(ptl); |
| else |
| profile = NULL; |
| if (!profile) { |
| // Default to using multiplication factors for Main profile. |
| profile = &h265_profiles[4]; |
| } |
| |
| pic_size = width * height; |
| |
| if (ptl) { |
| tier_flag = ptl->general_tier_flag; |
| lbr_flag = ptl->general_lower_bit_rate_constraint_flag; |
| } else { |
| tier_flag = 0; |
| lbr_flag = profile->lower_bit_rate > 0; |
| } |
| if (profile->profile_idc == 1 || profile->profile_idc == 2) { |
| hbr_factor = 1; |
| } else if (profile->high_throughput) { |
| if (profile->intra) |
| hbr_factor = 24 - 12 * lbr_flag; |
| else |
| hbr_factor = 6; |
| } else { |
| hbr_factor = 2 - lbr_flag; |
| } |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(h265_levels); i++) { |
| const H265LevelDescriptor *level = &h265_levels[i]; |
| int max_br, max_dpb_size; |
| |
| if (tier_flag && !level->max_br_high) |
| continue; |
| |
| if (pic_size > level->max_luma_ps) |
| continue; |
| if (width * width > 8 * level->max_luma_ps) |
| continue; |
| if (height * height > 8 * level->max_luma_ps) |
| continue; |
| |
| if (slice_segments > level->max_slice_segments_per_picture) |
| continue; |
| if (tile_rows > level->max_tile_rows) |
| continue; |
| if (tile_cols > level->max_tile_cols) |
| continue; |
| |
| if (tier_flag) |
| max_br = level->max_br_high; |
| else |
| max_br = level->max_br_main; |
| if (!max_br) |
| continue; |
| if (bitrate > (int64_t)profile->cpb_nal_factor * hbr_factor * max_br) |
| continue; |
| |
| if (pic_size <= (level->max_luma_ps >> 2)) |
| max_dpb_size = FFMIN(4 * profile->max_dpb_pic_buf, 16); |
| else if (pic_size <= (level->max_luma_ps >> 1)) |
| max_dpb_size = FFMIN(2 * profile->max_dpb_pic_buf, 16); |
| else if (pic_size <= (3 * level->max_luma_ps >> 2)) |
| max_dpb_size = FFMIN(4 * profile->max_dpb_pic_buf / 3, 16); |
| else |
| max_dpb_size = profile->max_dpb_pic_buf; |
| if (max_dec_pic_buffering > max_dpb_size) |
| continue; |
| |
| return level; |
| } |
| |
| return NULL; |
| } |
