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