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bitstream/itu/h265.h

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/*****************************************************************************
* h265.h: ITU-T H.265 (video)
*****************************************************************************
* Copyright (C) 2016 VideoLAN
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
/*
* Normative references:
* - ITU-T H.265 (high efficiency video coding)
* - ISO/IEC 14496-15 2013 (AVC file format)
*/
#ifndef __BITSTREAM_ITU_H265_H__
#define __BITSTREAM_ITU_H265_H__
#include <stdint.h> /* uint8_t, uint16_t, etc... */
#include <stdbool.h> /* bool */
#include <string.h> /* memset */
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* H265 network abstraction layer (annex B)
*****************************************************************************/
#define H265NAL_TYPE_TRAIL_N 0 /* Trailing */
#define H265NAL_TYPE_TRAIL_R 1 /* Trailing Reference */
#define H265NAL_TYPE_TSA_N 2 /* Temporal Sublayer Access */
#define H265NAL_TYPE_TSA_R 3 /* Temporal Sublayer Access Reference */
#define H265NAL_TYPE_STSA_N 4 /* Stepwise Temporal Sublayer Access */
#define H265NAL_TYPE_STSA_R 5 /* Stepwise Temporal Sublayer Access Reference */
#define H265NAL_TYPE_RADL_N 6 /* Random Access Decodable Leading (display order) */
#define H265NAL_TYPE_RADL_R 7 /* Random Access Decodable Leading (display order) Reference */
#define H265NAL_TYPE_RASL_N 8 /* Random Access Skipped Leading (display order) */
#define H265NAL_TYPE_RASL_R 9 /* Random Access Skipped Leading (display order) Reference */
/* 10 to 15 reserved */
#define H265NAL_TYPE_RSV_VCL_N10 10
#define H265NAL_TYPE_RSV_VCL_N12 12
#define H265NAL_TYPE_RSV_VCL_N14 14
/* Key frames */
#define H265NAL_TYPE_BLA_W_LP 16 /* Broken Link Access with Associated RASL */
#define H265NAL_TYPE_BLA_W_RADL 17 /* Broken Link Access with Associated RADL */
#define H265NAL_TYPE_BLA_N_LP 18 /* Broken Link Access */
#define H265NAL_TYPE_IDR_W_RADL 19 /* Instantaneous Decoder Refresh with Associated RADL */
#define H265NAL_TYPE_IDR_N_LP 20 /* Instantaneous Decoder Refresh */
#define H265NAL_TYPE_CRA 21 /* Clean Random Access */
/* 22 to 31 reserved */
#define H265NAL_TYPE_IRAP_VCL22 22 /* Intra Random Access Point */
#define H265NAL_TYPE_IRAP_VCL23 23
/* Non VCL NAL*/
#define H265NAL_TYPE_VPS 32
#define H265NAL_TYPE_SPS 33
#define H265NAL_TYPE_PPS 34
#define H265NAL_TYPE_AUD 35 /* Access unit delimiter */
#define H265NAL_TYPE_EOS 36 /* End of sequence */
#define H265NAL_TYPE_EOB 37 /* End of bitstream */
#define H265NAL_TYPE_FD 38 /* Filler data*/
#define H265NAL_TYPE_PREF_SEI 39 /* Prefix SEI */
#define H265NAL_TYPE_SUFF_SEI 40 /* Suffix SEI */
/* 41 to 47 reserved */
#define H265NAL_TYPE_RSV_NVCL41 41 /* Reserved Non VCL */
#define H265NAL_TYPE_RSV_NVCL44 44
#define H265NAL_TYPE_RSV_NVCL45 45
#define H265NAL_TYPE_RSV_NVCL47 47
#define H265NAL_TYPE_UNSPEC48 48 /* Unspecified (custom) */
#define H265NAL_TYPE_UNSPEC55 55
#define H265NAL_TYPE_UNSPEC56 56
#define H265NAL_TYPE_UNSPEC63 63
static inline void h265nal_init(uint8_t *p_h265nal)
{
p_h265nal[0] = 0x0;
p_h265nal[1] = 0x0;
p_h265nal[2] = 0x1;
p_h265nal[3] = 0;
p_h265nal[4] = 0;
}
static inline void h265nal_set_type(uint8_t *p_h265nal, uint8_t i_type)
{
p_h265nal[3] &= ~0x7e;
p_h265nal[3] |= (i_type << 1) & 0x7e;
}
static inline uint8_t h265nal_get_type(const uint8_t *p_h265nal)
{
return (p_h265nal[3] & 0x7e) >> 1;
}
static inline void h265nal_set_layerid(uint8_t *p_h265nal, uint8_t i_layerid)
{
p_h265nal[3] &= ~0x1;
p_h265nal[4] &= ~0xf8;
p_h265nal[3] |= (i_layerid >> 5) & 0x1;
p_h265nal[4] |= (i_layerid << 3) & 0xf8;
}
static inline uint8_t h265nal_get_layerid(const uint8_t *p_h265nal)
{
return ((p_h265nal[3] & 0x1) << 5) | ((p_h265nal[4] & 0xf8) >> 3);
}
static inline void h265nal_set_temporalid1(uint8_t *p_h265nal, uint8_t i_temporalid1)
{
p_h265nal[4] &= ~0x7;
p_h265nal[4] |= i_temporalid1 & 0x7;
}
static inline uint8_t h265nal_get_temporalid1(const uint8_t *p_h265nal)
{
return p_h265nal[4] & 0x7;
}
static inline uint8_t h265nalst_get_type(uint8_t start)
{
return (start & 0x7e) >> 1;
}
/*****************************************************************************
* H265 supplemental enhancement information
*****************************************************************************/
#define H265SEI_HEADER_SIZE 5
#define H265SEI_BUFFERING_PERIOD 0
#define H265SEI_PIC_TIMING 1
#define H265SEI_PAN_SCAN_RECT 2
#define H265SEI_FILLER_PAYLOAD 3
#define H265SEI_USER_T_T35 4
#define H265SEI_USER_UNREGISTERED 5
#define H265SEI_RECOVERY_POINT 6
#define H265SEI_SCENE_INFO 9
#define H265SEI_FULL_FRAME_SNAP 15
#define H265SEI_PROG_REF_SEGMENT_S 16
#define H265SEI_PROG_REF_SEGMENT_E 17
#define H265SEI_FILM_GRAIN_CHAR 19
#define H265SEI_POST_FILTER_HINT 22
#define H265SEI_TONE_MAPPING_INFO 23
#define H265SEI_FRAME_PACK_ARRANG 45
#define H265SEI_DISPLAY_ORIENTATION 47
#define H265SEI_STRUCT_PICT_INFO 128
#define H265SEI_ACTIVE_PS 129
#define H265SEI_DEC_UNIT_INFO 130
#define H265SEI_TEMP_SUBL_ZERO_IDX 131
#define H265SEI_DEC_PICTURE_HASH 132
#define H265SEI_SCALABLE_NESTING 133
#define H265SEI_REGION_REFRESH_INFO 134
#define H265SEI_STRUCT_FRAME 0
#define H265SEI_STRUCT_TOP 1
#define H265SEI_STRUCT_BOT 2
#define H265SEI_STRUCT_TOP_BOT 3
#define H265SEI_STRUCT_BOT_TOP 4
#define H265SEI_STRUCT_TOP_BOT_TOP 5
#define H265SEI_STRUCT_BOT_TOP_BOT 6
#define H265SEI_STRUCT_DOUBLE 7
#define H265SEI_STRUCT_TRIPLE 8
#define H265SEI_STRUCT_TOP_PREV_BOT 9
#define H265SEI_STRUCT_BOT_PREV_TOP 10
#define H265SEI_STRUCT_TOP_NEXT_BOT 11
#define H265SEI_STRUCT_BOT_NEXT_TOP 12
static inline void h265sei_init(uint8_t *p_h265sei, bool b_prefix)
{
h265nal_init(p_h265sei);
h265nal_set_type(p_h265sei,
b_prefix ? H265NAL_TYPE_PREF_SEI : H265NAL_TYPE_SUFF_SEI);
}
/*****************************************************************************
* H265 profile tier level
*****************************************************************************/
#define H265PTL_HEADER_SIZE 12
#define H265PTL_PROFILE_SIZE 11
/*****************************************************************************
* H265 video parameter set
*****************************************************************************/
#define H265VPS_HEADER_SIZE 9
#define H265VPS_ID_MAX 16
#define H265VPS_LEVEL_1_0 30
#define H265VPS_LEVEL_2_0 60
#define H265VPS_LEVEL_2_1 63
#define H265VPS_LEVEL_3_0 90
#define H265VPS_LEVEL_3_1 93
#define H265VPS_LEVEL_4_0 120
#define H265VPS_LEVEL_4_1 123
#define H265VPS_LEVEL_5_0 150
#define H265VPS_LEVEL_5_1 153
#define H265VPS_LEVEL_5_2 156
#define H265VPS_LEVEL_6_0 180
#define H265VPS_LEVEL_6_1 183
#define H265VPS_LEVEL_6_2 186
static inline void h265vps_init(uint8_t *p_h265vps)
{
h265nal_init(p_h265vps);
h265nal_set_type(p_h265vps, H265NAL_TYPE_VPS);
p_h265vps[5] = 0x6;
}
static inline void h265vps_set_vps_id(uint8_t *p_h265vps, uint8_t i_vps_id)
{
p_h265vps[5] &= ~0xf0;
p_h265vps[5] |= (i_vps_id << 4) & 0xf0;
}
static inline uint8_t h265vps_get_vps_id(const uint8_t *p_h265vps)
{
return (p_h265vps[5] & 0xf0) >> 4;
}
/*****************************************************************************
* H265 sequence parameter set
*****************************************************************************/
#define H265SPS_HEADER_SIZE 6
#define H265SPS_ID_MAX 16
#define H265SPS_CHROMA_MONO 0
#define H265SPS_CHROMA_420 1
#define H265SPS_CHROMA_422 2
#define H265SPS_CHROMA_444 3
static inline void h265sps_init(uint8_t *p_h265sps)
{
h265nal_init(p_h265sps);
h265nal_set_type(p_h265sps, H265NAL_TYPE_SPS);
p_h265sps[5] = 0x0;
}
static inline void h265sps_set_vps_id(uint8_t *p_h265sps, uint8_t i_vps_id)
{
p_h265sps[5] &= ~0xf0;
p_h265sps[5] |= (i_vps_id << 4) & 0xf0;
}
static inline uint8_t h265sps_get_vps_id(const uint8_t *p_h265sps)
{
return (p_h265sps[5] & 0xf0) >> 4;
}
/*****************************************************************************
* H265 picture parameter set
*****************************************************************************/
#define H265PPS_HEADER_SIZE 5
#define H265PPS_ID_MAX 64
static inline void h265pps_init(uint8_t *p_h265pps)
{
h265nal_init(p_h265pps);
h265nal_set_type(p_h265pps, H265NAL_TYPE_PPS);
}
/*****************************************************************************
* H265 access unit delimiter
*****************************************************************************/
#define H265AUD_HEADER_SIZE 6
static inline void h265aud_init(uint8_t *p_h265aud)
{
h265nal_init(p_h265aud);
h265nal_set_type(p_h265aud, H265NAL_TYPE_AUD);
p_h265aud[5] = 0x10;
}
static inline void h265aud_set_pic_type(uint8_t *p_h265aud, uint8_t i_type)
{
p_h265aud[5] = i_type << 5;
}
static inline uint8_t h265aud_get_pic_type(const uint8_t *p_h265aud)
{
return p_h265aud[5] >> 5;
}
/*****************************************************************************
* H265 end sequence
*****************************************************************************/
#define H265EOS_HEADER_SIZE 5
static inline void h265eos_init(uint8_t *p_h265eos)
{
h265nal_init(p_h265eos);
h265nal_set_type(p_h265eos, H265NAL_TYPE_EOS);
}
/*****************************************************************************
* H265 end bitstream
*****************************************************************************/
#define H265EOB_HEADER_SIZE 5
static inline void h265eob_init(uint8_t *p_h265eob)
{
h265nal_init(p_h265eob);
h265nal_set_type(p_h265eob, H265NAL_TYPE_EOB);
}
/*****************************************************************************
* H265 video usability information
*****************************************************************************/
#define H265VUI_AR_EXTENDED 255
/*****************************************************************************
* H265 slices
*****************************************************************************/
#define H265SLI_TYPE_B 0
#define H265SLI_TYPE_P 1
#define H265SLI_TYPE_I 2
/*****************************************************************************
* H265 hvcC structure
*****************************************************************************/
#define H265HVCC_HEADER 23
#define H265HVCC_ARRAY_HEADER 3
#define H265HVCC_NALU_HEADER 2
static inline void h265hvcc_init(uint8_t *p)
{
p[0] = 1; /* version */
p[1] = 0;
p[2] = 0;
p[3] = 0;
p[4] = 0;
p[5] = 0;
p[6] = 0;
p[7] = 0;
p[8] = 0;
p[9] = 0;
p[10] = 0;
p[11] = 0;
p[12] = 0;
p[13] = 0xf0;
p[14] = 0xfc;
p[15] = 0xfc;
p[16] = 0xf8;
p[17] = 0xf8;
p[18] = 0;
p[19] = 0;
p[20] = 0;
p[21] = 0;
}
static inline void h265hvcc_set_profile_space(uint8_t *p, uint8_t val)
{
p[1] &= ~0xc0;
p[1] |= val << 6;
}
static inline uint8_t h265hvcc_get_profile_space(const uint8_t *p)
{
return p[1] >> 6;
}
static inline void h265hvcc_set_tier(uint8_t *p)
{
p[1] |= 0x40;
}
static inline bool h265hvcc_get_tier(const uint8_t *p)
{
return p[1] & 0x40;
}
static inline void h265hvcc_set_profile_idc(uint8_t *p, uint8_t val)
{
p[1] &= ~0x1f;
p[1] |= val & 0x1f;
}
static inline uint8_t h265hvcc_get_profile_idc(const uint8_t *p)
{
return p[1] & 0x1f;
}
static inline void h265hvcc_set_profile_compatibility(uint8_t *p, uint32_t val)
{
p[2] = val >> 24;
p[3] = (val >> 16) & 0xff;
p[4] = (val >> 8) & 0xff;
p[5] = val & 0xff;
}
static inline uint32_t h265hvcc_get_profile_compatibility(const uint8_t *p)
{
return (p[2] << 24) | (p[3] << 16) | (p[4] << 8) | p[5];
}
static inline void h265hvcc_set_constraint_indicator(uint8_t *p, uint64_t val)
{
p[6] = val >> 40;
p[7] = (val >> 32) & 0xff;
p[8] = (val >> 24) & 0xff;
p[9] = (val >> 16) & 0xff;
p[10] = (val >> 8) & 0xff;
p[11] = val & 0xff;
}
static inline uint64_t h265hvcc_get_constraint_indicator(const uint8_t *p)
{
return ((uint64_t)p[6] << 40) |
((uint64_t)p[7] << 32) |
((uint64_t)p[8] << 24) |
((uint64_t)p[9] << 16) |
((uint64_t)p[10] << 8) |
(uint64_t)p[11];
}
static inline void h265hvcc_set_level_idc(uint8_t *p, uint8_t val)
{
p[12] = val;
}
static inline uint8_t h265hvcc_get_level_idc(const uint8_t *p)
{
return p[12];
}
static inline void h265hvcc_set_min_spatial_segmentation_idc(uint8_t *p, uint8_t val)
{
p[13] = 0xf0 | val;
}
static inline uint8_t h265hvcc_get_min_spatial_segmentation_idc(const uint8_t *p)
{
return p[13] & 0xf;
}
static inline void h265hvcc_set_parallelism_type(uint8_t *p, uint8_t val)
{
p[14] = 0xfc | val;
}
static inline uint8_t h265hvcc_get_parallelism_type(const uint8_t *p)
{
return p[14] & 0x3;
}
static inline void h265hvcc_set_chroma_format(uint8_t *p, uint8_t val)
{
p[15] = 0xfc | val;
}
static inline uint8_t h265hvcc_get_chroma_format(const uint8_t *p)
{
return p[15] & 0x3;
}
static inline void h265hvcc_set_bitdepth_luma_8(uint8_t *p, uint8_t val)
{
p[16] = 0xf8 | val;
}
static inline uint8_t h265hvcc_get_bitdepth_luma_8(const uint8_t *p)
{
return p[16] & 0x7;
}
static inline void h265hvcc_set_bitdepth_chroma_8(uint8_t *p, uint8_t val)
{
p[17] = 0xf8 | val;
}
static inline uint8_t h265hvcc_get_bitdepth_chroma_8(const uint8_t *p)
{
return p[17] & 0x7;
}
static inline void h265hvcc_set_avg_frame_rate(uint8_t *p, uint16_t val)
{
p[18] = val >> 8;
p[19] = val & 0xff;
}
static inline uint32_t h265hvcc_get_avg_frame_rate(const uint8_t *p)
{
return (p[18] << 8) | p[19];
}
static inline void h265hvcc_set_constant_frame_rate(uint8_t *p, uint8_t val)
{
p[20] &= ~0xc0;
p[20] |= val << 6;
}
static inline uint8_t h265hvcc_get_constant_frame_rate(const uint8_t *p)
{
return p[20] >> 6;
}
static inline void h265hvcc_set_num_temporal_layers(uint8_t *p, uint8_t val)
{
p[21] &= ~0x38;
p[21] |= val << 3;
}
static inline uint8_t h265hvcc_get_num_temporal_layers(const uint8_t *p)
{
return (p[21] >> 3) & 0x3;
}
static inline void h265hvcc_set_temporal_id_nested(uint8_t *p)
{
p[21] |= 0x4;
}
static inline bool h265hvcc_get_temporal_id_nested(const uint8_t *p)
{
return p[21] & 0x4;
}
static inline void h265hvcc_set_length_size_1(uint8_t *p, uint8_t val)
{
p[21] &= ~0x3;
p[21] |= val;
}
static inline uint8_t h265hvcc_get_length_size_1(const uint8_t *p)
{
return p[21] & 0x3;
}
static inline void h265hvcc_set_num_of_arrays(uint8_t *p, uint8_t val)
{
p[22] = val;
}
static inline uint8_t h265hvcc_get_num_of_arrays(const uint8_t *p)
{
return p[22];
}
static inline void h265hvcc_nalu_set_length(uint8_t *p, uint16_t val)
{
p[0] = val >> 8;
p[1] = val & 0xff;
}
static inline uint16_t h265hvcc_nalu_get_length(const uint8_t *p)
{
return (p[0] << 8) | p[1];
}
static inline uint8_t *h265hvcc_nalu_get_nalu(const uint8_t *p)
{
return (uint8_t *)p + H265HVCC_NALU_HEADER;
}
static inline void h265hvcc_array_init(uint8_t *p)
{
p[0] = 0;
}
static inline void h265hvcc_array_set_completeness(uint8_t *p)
{
p[0] |= 0x80;
}
static inline bool h265hvcc_array_get_completeness(const uint8_t *p)
{
return p[0] & 0x80;
}
static inline void h265hvcc_array_set_nal_unit_type(uint8_t *p, uint8_t val)
{
p[0] &= ~0x3f;
p[0] |= val;
}
static inline uint8_t h265hvcc_array_get_nal_unit_type(const uint8_t *p)
{
return p[0] & 0x3f;
}
static inline void h265hvcc_array_set_num_nalus(uint8_t *p, uint16_t val)
{
p[1] = val >> 8;
p[2] = val & 0xff;
}
static inline uint16_t h265hvcc_array_get_num_nalus(const uint8_t *p)
{
return (p[1] << 8) | p[2];
}
static inline uint8_t *h265hvcc_array_get_nalu(const uint8_t *p, uint8_t n)
{
p += H265HVCC_ARRAY_HEADER;
while (n) {
uint16_t length = h265hvcc_nalu_get_length(p);
p += H265HVCC_NALU_HEADER + length;
n--;
}
return (uint8_t *)p;
}
static inline uint8_t *h265hvcc_get_array(const uint8_t *p, uint8_t n)
{
p += H265HVCC_HEADER;
while (n) {
uint16_t num_nalus = h265hvcc_array_get_num_nalus(p);
p = h265hvcc_array_get_nalu(p, num_nalus);
n--;
}
return (uint8_t *)p;
}
static inline bool h265hvcc_validate(const uint8_t *p, size_t size)
{
/* apparenty there is a prerelease with version = 0 */
if (p[0] != 1 && p[0] != 0)
return false;
if (size < H265HVCC_HEADER)
return false;
uint8_t num_arrays = h265hvcc_get_num_of_arrays(p);
uint8_t array = 0;
while (array < num_arrays) {
const uint8_t *a = h265hvcc_get_array(p, array++);
if (a + H265HVCC_ARRAY_HEADER > p + size)
return false;
uint8_t num_nalus = h265hvcc_array_get_num_nalus(a);
uint8_t nalu = 0;
while (nalu < num_nalus)
if (h265hvcc_array_get_nalu(a, nalu++) + H265HVCC_NALU_HEADER > p + size)
return false;
}
if (h265hvcc_get_array(p, num_arrays) > p + size)
return false;
return true;
}
#ifdef __cplusplus
}
#endif
#endif