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235 lines
7.4 KiB
235 lines
7.4 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/common.h" |
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#include "libavcodec/h264_levels.h" |
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static const struct { |
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int width; |
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int height; |
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int level_idc; |
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} test_sizes[] = { |
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// First level usable at some standard sizes. |
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// (From H.264 table A-6.) |
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{ 176, 144, 10 }, // QCIF |
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{ 352, 288, 11 }, // CIF |
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{ 640, 480, 22 }, // VGA |
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{ 720, 480, 22 }, // NTSC |
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{ 720, 576, 22 }, // PAL |
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{ 800, 600, 31 }, // SVGA |
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{ 1280, 720, 31 }, // 720p |
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{ 1280, 1024, 32 }, // SXGA |
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{ 1920, 1080, 40 }, // 1080p |
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{ 2048, 1080, 42 }, // 2Kx1080 |
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{ 2048, 1536, 50 }, // 4XGA |
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{ 3840, 2160, 51 }, // 4K |
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{ 7680, 4320, 60 }, // 8K |
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// Overly wide or tall sizes. |
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{ 1, 256, 10 }, |
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{ 1, 512, 11 }, |
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{ 1, 1024, 21 }, |
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{ 1, 1808, 22 }, |
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{ 1, 1824, 31 }, |
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{ 256, 1, 10 }, |
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{ 512, 1, 11 }, |
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{ 1024, 1, 21 }, |
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{ 1808, 1, 22 }, |
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{ 1824, 1, 31 }, |
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{ 512, 4096, 40 }, |
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{ 256, 4112, 42 }, |
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{ 8688, 1024, 51 }, |
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{ 8704, 512, 60 }, |
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{ 16880, 1, 60 }, |
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{ 16896, 1, 0 }, |
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}; |
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static const struct { |
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int width; |
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int height; |
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int framerate; |
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int level_idc; |
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} test_framerate[] = { |
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// Some typical sizes and frame rates. |
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// (From H.264 table A-1 and table A-6) |
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{ 176, 144, 15, 10 }, |
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{ 176, 144, 16, 11 }, |
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{ 320, 240, 10, 11 }, |
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{ 320, 240, 20, 12 }, |
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{ 320, 240, 40, 21 }, |
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{ 352, 288, 30, 13 }, |
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{ 352, 288, 51, 22 }, |
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{ 352, 576, 25, 21 }, |
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{ 352, 576, 26, 30 }, |
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{ 640, 480, 33, 30 }, |
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{ 640, 480, 34, 31 }, |
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{ 720, 480, 50, 31 }, |
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{ 720, 576, 25, 30 }, |
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{ 800, 600, 55, 31 }, |
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{ 1024, 768, 35, 31 }, |
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{ 1024, 768, 70, 32 }, |
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{ 1280, 720, 30, 31 }, |
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{ 1280, 720, 31, 32 }, |
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{ 1280, 960, 45, 32 }, |
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{ 1280, 960, 46, 40 }, |
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{ 1280, 1024, 42, 32 }, |
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{ 1600, 1200, 32, 40 }, |
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{ 1600, 1200, 33, 42 }, |
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{ 1920, 1088, 30, 40 }, |
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{ 1920, 1088, 55, 42 }, |
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{ 2048, 1024, 30, 40 }, |
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{ 2048, 1024, 62, 42 }, |
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{ 2048, 1088, 60, 42 }, |
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{ 3680, 1536, 26, 50 }, |
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{ 4096, 2048, 30, 51 }, |
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{ 4096, 2048, 59, 52 }, |
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{ 4096, 2160, 60, 52 }, |
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}; |
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static const struct { |
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int width; |
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int height; |
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int dpb_size; |
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int level_idc; |
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} test_dpb[] = { |
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// First level usable for some DPB sizes. |
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// (From H.264 table A-7.) |
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{ 176, 144, 4, 10 }, |
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{ 176, 144, 8, 11 }, |
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{ 176, 144, 16, 12 }, |
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{ 1280, 720, 1, 31 }, |
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{ 1280, 720, 5, 31 }, |
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{ 1280, 720, 9, 40 }, |
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{ 1280, 720, 10, 50 }, |
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{ 1920, 1080, 1, 40 }, |
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{ 1920, 1080, 5, 50 }, |
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{ 1920, 1080, 13, 50 }, |
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{ 1920, 1080, 14, 51 }, |
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{ 3840, 2160, 5, 51 }, |
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{ 3840, 2160, 6, 60 }, |
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{ 3840, 2160, 16, 60 }, |
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{ 7680, 4320, 5, 60 }, |
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{ 7680, 4320, 6, 0 }, |
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}; |
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static const struct { |
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int64_t bitrate; |
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int profile_idc; |
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int level_idc; |
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} test_bitrate[] = { |
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// Values where profile affects level at a given bitrate. |
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{ 2500000, 77, 21 }, |
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{ 2500000, 100, 20 }, |
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{ 2500000, 244, 13 }, |
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{ 100000000, 77, 50 }, |
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{ 100000000, 100, 50 }, |
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{ 100000000, 244, 41 }, |
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{ 999999999, 77, 0 }, |
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{ 999999999, 100, 62 }, |
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// Check level 1b. |
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{ 32 * 1200, 66, 10 }, |
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{ 32 * 1500, 100, 10 }, |
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{ 96 * 1200, 66, 11 }, |
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{ 96 * 1500, 100, 9 }, |
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{ 144 * 1200, 66, 11 }, |
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{ 144 * 1500, 100, 11 }, |
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}; |
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static const struct { |
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const char *name; |
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int profile_idc; |
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int64_t bitrate; |
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int width; |
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int height; |
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int dpb_frames; |
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int level_idc; |
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} test_all[] = { |
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{ "Bluray 1080p 40Mb/s", 100, 40000000, 1920, 1080, 4, 41 }, |
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{ "Bluray 1080p 24Mb/s", 100, 24000000, 1920, 1080, 4, 40 }, |
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{ "Bluray 720p 40Mb/s", 100, 40000000, 1280, 720, 6, 41 }, |
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{ "Bluray 720p 24Mb/s", 100, 24000000, 1280, 720, 6, 40 }, |
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{ "Bluray PAL 40Mb/s", 100, 40000000, 720, 576, 6, 41 }, |
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{ "Bluray PAL 24Mb/s", 100, 24000000, 720, 576, 6, 32 }, |
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{ "Bluray PAL 16Mb/s", 100, 16800000, 720, 576, 6, 31 }, |
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{ "Bluray PAL 12Mb/s", 100, 12000000, 720, 576, 5, 30 }, |
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{ "Bluray NTSC 40Mb/s", 100, 40000000, 720, 480, 6, 41 }, |
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{ "Bluray NTSC 24Mb/s", 100, 24000000, 720, 480, 6, 32 }, |
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{ "Bluray NTSC 16Mb/s", 100, 16800000, 720, 480, 6, 31 }, |
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{ "Bluray NTSC 12Mb/s", 100, 12000000, 720, 480, 6, 30 }, |
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}; |
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int main(void) |
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{ |
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const H264LevelDescriptor *level; |
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int i; |
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#define CHECK(expected, format, ...) do { \ |
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if (expected ? (!level || level->level_idc != expected) \ |
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: !!level) { \ |
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av_log(NULL, AV_LOG_ERROR, "Incorrect level for " \ |
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format ": expected %d, got %d.\n", __VA_ARGS__, \ |
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expected, level ? level->level_idc : -1); \ |
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return 1; \ |
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} \ |
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} while (0) |
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for (i = 0; i < FF_ARRAY_ELEMS(test_sizes); i++) { |
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level = ff_h264_guess_level(0, 0, 0, test_sizes[i].width, |
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test_sizes[i].height, 0); |
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CHECK(test_sizes[i].level_idc, "size %dx%d", |
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test_sizes[i].width, test_sizes[i].height); |
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} |
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for (i = 0; i < FF_ARRAY_ELEMS(test_framerate); i++) { |
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level = ff_h264_guess_level(0, 0, test_framerate[i].framerate, |
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test_framerate[i].width, |
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test_framerate[i].height, 0); |
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CHECK(test_framerate[i].level_idc, "framerate %d, size %dx%d", |
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test_framerate[i].framerate, test_framerate[i].width, |
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test_framerate[i].height); |
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} |
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for (i = 0; i < FF_ARRAY_ELEMS(test_dpb); i++) { |
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level = ff_h264_guess_level(0, 0, 0, test_dpb[i].width, |
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test_dpb[i].height, |
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test_dpb[i].dpb_size); |
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CHECK(test_dpb[i].level_idc, "size %dx%d dpb %d", |
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test_dpb[i].width, test_dpb[i].height, |
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test_dpb[i].dpb_size); |
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} |
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for (i = 0; i < FF_ARRAY_ELEMS(test_bitrate); i++) { |
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level = ff_h264_guess_level(test_bitrate[i].profile_idc, |
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test_bitrate[i].bitrate, |
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0, 0, 0, 0); |
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CHECK(test_bitrate[i].level_idc, "bitrate %"PRId64" profile %d", |
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test_bitrate[i].bitrate, test_bitrate[i].profile_idc); |
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} |
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for (i = 0; i < FF_ARRAY_ELEMS(test_all); i++) { |
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level = ff_h264_guess_level(test_all[i].profile_idc, |
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test_all[i].bitrate, |
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0, |
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test_all[i].width, |
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test_all[i].height, |
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test_all[i].dpb_frames); |
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CHECK(test_all[i].level_idc, "%s", test_all[i].name); |
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} |
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return 0; |
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}
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