/* * 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/common.h" #include "libavcodec/h265_profile_level.h" static const struct { int width; int height; int level_idc; } test_sizes[] = { // First level usable at standard sizes, from H.265 table A.9. { 176, 144, 30 }, // QCIF { 352, 288, 60 }, // CIF { 640, 480, 90 }, // VGA { 720, 480, 90 }, // NTSC { 720, 576, 90 }, // PAL { 1024, 768, 93 }, // XGA { 1280, 720, 93 }, // 720p { 1280, 1024, 120 }, // SXGA { 1920, 1080, 120 }, // 1080p { 2048, 1080, 120 }, // 2Kx1080 { 2048, 1536, 150 }, // 4XGA { 3840, 2160, 150 }, // 4K { 7680, 4320, 180 }, // 8K // Overly wide or tall sizes. { 1, 512, 30 }, { 1, 1024, 63 }, { 1, 2048, 90 }, { 1, 4096, 120 }, { 1, 8192, 150 }, { 1, 16384, 180 }, { 1, 32768, 0 }, { 512, 1, 30 }, { 1024, 1, 63 }, { 2048, 1, 90 }, { 4096, 1, 120 }, { 8192, 1, 150 }, { 16384, 1, 180 }, { 32768, 1, 0 }, { 2800, 256, 93 }, { 2816, 128, 120 }, { 256, 4208, 120 }, { 128, 4224, 150 }, { 8432, 256, 150 }, { 8448, 128, 180 }, { 256, 16880, 180 }, { 128, 16896, 0 }, }; static const struct { int width; int height; int dpb_size; int level_idc; } test_dpb[] = { // First level usable for some DPB sizes. // L1: 176 * 144 = 25344 <= 36864 * 3/4 = 27648 // L2: <= 122880 * 1/4 = 30720 { 176, 144, 8, 30 }, { 176, 144, 9, 60 }, // L2: 352 * 288 = 101376 <= 122880 // L2.1: <= 245760 * 1/2 = 122880 // L3: <= 552960 * 1/4 = 138240 { 352, 288, 6, 60 }, { 352, 288, 7, 63 }, { 352, 288, 13, 90 }, // L3.1: 1280 * 720 = 921600 <= 983040 // L4: <= 2228224 * 1/2 = 1114112 // L5: <= 8912896 * 1/4 = 2228224 { 1280, 720, 6, 93 }, { 1280, 720, 12, 120 }, { 1280, 720, 16, 150 }, // L5: 3840 * 2160 = 8294400 <= 8912896 // L6: <= 35651584 * 1/4 = 8912896 { 3840, 2160, 6, 150 }, { 3840, 2160, 7, 180 }, { 3840, 2160, 16, 180 }, }; static const H265RawProfileTierLevel profile_main = { // CpbNalFactor = 1100 .general_profile_space = 0, .general_profile_idc = 1, .general_tier_flag = 0, .general_profile_compatibility_flag[1] = 1, }; static const H265RawProfileTierLevel profile_main_12 = { // CpbNalFactor = 1650 .general_profile_space = 0, .general_profile_idc = 4, .general_tier_flag = 0, .general_profile_compatibility_flag[4] = 1, .general_max_12bit_constraint_flag = 1, .general_max_10bit_constraint_flag = 0, .general_max_8bit_constraint_flag = 0, .general_max_422chroma_constraint_flag = 1, .general_max_420chroma_constraint_flag = 1, .general_max_monochrome_constraint_flag = 0, .general_intra_constraint_flag = 0, .general_one_picture_only_constraint_flag = 0, .general_lower_bit_rate_constraint_flag = 1, }; static const H265RawProfileTierLevel profile_main_422_12_intra = { // CpbNalFactor = 2200 .general_profile_space = 0, .general_profile_idc = 4, .general_tier_flag = 0, .general_profile_compatibility_flag[4] = 1, .general_max_12bit_constraint_flag = 1, .general_max_10bit_constraint_flag = 0, .general_max_8bit_constraint_flag = 0, .general_max_422chroma_constraint_flag = 1, .general_max_420chroma_constraint_flag = 0, .general_max_monochrome_constraint_flag = 0, .general_intra_constraint_flag = 1, .general_one_picture_only_constraint_flag = 0, }; static const H265RawProfileTierLevel profile_ht_444_14 = { // CpbNalFactor = 3850 .general_profile_space = 0, .general_profile_idc = 5, .general_tier_flag = 0, .general_profile_compatibility_flag[5] = 1, .general_max_14bit_constraint_flag = 1, .general_max_12bit_constraint_flag = 0, .general_max_10bit_constraint_flag = 0, .general_max_8bit_constraint_flag = 0, .general_max_422chroma_constraint_flag = 0, .general_max_420chroma_constraint_flag = 0, .general_max_monochrome_constraint_flag = 0, .general_intra_constraint_flag = 0, .general_one_picture_only_constraint_flag = 0, .general_lower_bit_rate_constraint_flag = 1, }; static const H265RawProfileTierLevel profile_main_high_tier = { // CpbNalFactor = 1100 .general_profile_space = 0, .general_profile_idc = 1, .general_tier_flag = 1, .general_profile_compatibility_flag[1] = 1, }; static const struct { int64_t bitrate; const H265RawProfileTierLevel *ptl; int level_idc; } test_bitrate[] = { // First level usable for some bitrates and profiles. // L2.1: 3000 * 1100 = 3300000 // L3: 6000 * 1100 = 6600000 { 4000000, &profile_main, 90 }, // L2: 1500 * 1650 = 2475000 // L2.1: 3000 * 1650 = 4950000 { 4000000, &profile_main_12, 63 }, // L1: 350 * 2200 * 2 = 1540000 // L2: 1500 * 2200 * 2 = 6600000 { 4000000, &profile_main_422_12_intra, 60 }, // L5.1: 40000 * 1100 = 44000000 // L5.2: 60000 * 1100 = 66000000 { 50000000, &profile_main, 156 }, // L5: 25000 * 1650 = 41250000 // L5.1: 40000 * 1650 = 66000000 { 50000000, &profile_main_12, 153 }, // L3.1: 10000 * 2200 * 2 = 44000000 // L4: 12000 * 2200 * 2 = 52800000 { 50000000, &profile_main_422_12_intra, 120 }, // L2: 1500 * 3850 * 6 = 34650000 // L2.1: 3000 * 3850 * 6 = 69300000 { 50000000, &profile_ht_444_14, 63 }, // Level changes based on tier. { 1000, &profile_main, 30 }, { 1000, &profile_main_high_tier, 120 }, { 40000000, &profile_main, 153 }, { 40000000, &profile_main_high_tier, 123 }, { 200000000, &profile_main, 186 }, { 200000000, &profile_main_high_tier, 156 }, // Overflowing 32-bit integers. // L6: 60000 * 3850 * 6 = 1386000000 // L6.1: 120000 * 3850 * 6 = 2772000000 // L6.2: 240000 * 3850 * 6 = 5544000000 { INT64_C(2700000000), &profile_ht_444_14, 183 }, { INT64_C(4200000000), &profile_ht_444_14, 186 }, { INT64_C(5600000000), &profile_ht_444_14, 0 }, }; static const struct { int slice_segments; int tile_rows; int tile_cols; int level_idc; } test_fragments[] = { // Slices. { 4, 1, 1, 30 }, { 32, 1, 1, 93 }, { 70, 1, 1, 120 }, { 80, 1, 1, 150 }, { 201, 1, 1, 180 }, { 600, 1, 1, 180 }, { 601, 1, 1, 0 }, // Tiles. { 1, 2, 1, 90 }, { 1, 1, 2, 90 }, { 1, 3, 3, 93 }, { 1, 4, 2, 120 }, { 1, 2, 4, 120 }, { 1, 11, 10, 150 }, { 1, 10, 11, 180 }, { 1, 22, 20, 180 }, { 1, 20, 22, 0 }, }; int main(void) { const H265ProfileDescriptor *profile; const H265LevelDescriptor *level; int i; #define CHECK(expected, format, ...) do { \ if (expected ? (!level || level->level_idc != expected) \ : !!level) { \ av_log(NULL, AV_LOG_ERROR, "Incorrect level for " \ format ": expected %d, got %d.\n", __VA_ARGS__, \ expected, level ? level->level_idc : -1); \ return 1; \ } \ } while (0) for (i = 0; i < FF_ARRAY_ELEMS(test_sizes); i++) { level = ff_h265_guess_level(&profile_main, 0, test_sizes[i].width, test_sizes[i].height, 0, 0, 0, 0); CHECK(test_sizes[i].level_idc, "size %dx%d", test_sizes[i].width, test_sizes[i].height); } for (i = 0; i < FF_ARRAY_ELEMS(test_dpb); i++) { level = ff_h265_guess_level(&profile_main, 0, test_dpb[i].width, test_dpb[i].height, 0, 0, 0, test_dpb[i].dpb_size); CHECK(test_dpb[i].level_idc, "size %dx%d dpb %d", test_dpb[i].width, test_dpb[i].height, test_dpb[i].dpb_size); } for (i = 0; i < FF_ARRAY_ELEMS(test_bitrate); i++) { profile = ff_h265_get_profile(test_bitrate[i].ptl); level = ff_h265_guess_level(test_bitrate[i].ptl, test_bitrate[i].bitrate, 0, 0, 0, 0, 0, 0); CHECK(test_bitrate[i].level_idc, "bitrate %"PRId64" profile %s", test_bitrate[i].bitrate, profile->name); } for (i = 0; i < FF_ARRAY_ELEMS(test_fragments); i++) { level = ff_h265_guess_level(&profile_main, 0, 0, 0, test_fragments[i].slice_segments, test_fragments[i].tile_rows, test_fragments[i].tile_cols, 0); CHECK(test_fragments[i].level_idc, "%d slices %dx%d tiles", test_fragments[i].slice_segments, test_fragments[i].tile_cols, test_fragments[i].tile_rows); } return 0; }