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_H264_LEVELS_H
20#define AVCODEC_H264_LEVELS_H
21
22
23#include <stdint.h>
24
25typedef struct H264LevelDescriptor {
26    char        name[4];    // Large enough for all current levels like "4.1"
27    uint8_t     level_idc;
28    uint8_t     constraint_set3_flag;
29    uint32_t    max_mbps;
30    uint32_t    max_fs;
31    uint32_t    max_dpb_mbs;
32    uint32_t    max_br;
33    uint32_t    max_cpb;
34    uint16_t    max_v_mv_r;
35    uint8_t     min_cr;
36    uint8_t     max_mvs_per_2mb;
37} H264LevelDescriptor;
38
39/**
40 * Guess the level of a stream from some parameters.
41 *
42 * Unknown parameters may be zero, in which case they are ignored.
43 */
44const H264LevelDescriptor *ff_h264_guess_level(int profile_idc,
45                                               int64_t bitrate,
46                                               int framerate,
47                                               int width, int height,
48                                               int max_dec_frame_buffering);
49
50
51#endif /* AVCODEC_H264_LEVELS_H */
52