You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
129 lines
3.9 KiB
129 lines
3.9 KiB
/*
|
|
* H.265 video codec.
|
|
* Copyright (c) 2013-2014 struktur AG, Dirk Farin <farin@struktur.de>
|
|
*
|
|
* This file is part of libde265.
|
|
*
|
|
* libde265 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 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* libde265 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 libde265. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef DE265_NAL_H
|
|
#define DE265_NAL_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#ifdef HAVE_STDBOOL_H
|
|
#include <stdbool.h>
|
|
#endif
|
|
|
|
#include "libde265/bitstream.h"
|
|
#include "libde265/cabac.h"
|
|
|
|
struct nal_header {
|
|
nal_header() {
|
|
nal_unit_type = 0;
|
|
nuh_layer_id = 0;
|
|
nuh_temporal_id = 0;
|
|
}
|
|
|
|
void read(bitreader* reader);
|
|
void write(CABAC_encoder& writer) const;
|
|
|
|
void set(int unit_type, int layer_id=0, int temporal_id=0) {
|
|
nal_unit_type =unit_type;
|
|
nuh_layer_id =layer_id;
|
|
nuh_temporal_id=temporal_id;
|
|
}
|
|
|
|
uint8_t nal_unit_type;
|
|
uint8_t nuh_layer_id;
|
|
uint8_t nuh_temporal_id;
|
|
};
|
|
|
|
#define NAL_UNIT_TRAIL_N 0
|
|
#define NAL_UNIT_TRAIL_R 1
|
|
#define NAL_UNIT_TSA_N 2
|
|
#define NAL_UNIT_TSA_R 3
|
|
#define NAL_UNIT_STSA_N 4
|
|
#define NAL_UNIT_STSA_R 5
|
|
#define NAL_UNIT_RADL_N 6
|
|
#define NAL_UNIT_RADL_R 7
|
|
#define NAL_UNIT_RASL_N 8
|
|
#define NAL_UNIT_RASL_R 9
|
|
#define NAL_UNIT_RESERVED_VCL_N10 10
|
|
#define NAL_UNIT_RESERVED_VCL_N12 12
|
|
#define NAL_UNIT_RESERVED_VCL_N14 14
|
|
#define NAL_UNIT_RESERVED_VCL_R11 11
|
|
#define NAL_UNIT_RESERVED_VCL_R13 13
|
|
#define NAL_UNIT_RESERVED_VCL_R15 15
|
|
#define NAL_UNIT_BLA_W_LP 16 // BLA = broken link access
|
|
#define NAL_UNIT_BLA_W_RADL 17
|
|
#define NAL_UNIT_BLA_N_LP 18
|
|
#define NAL_UNIT_IDR_W_RADL 19
|
|
#define NAL_UNIT_IDR_N_LP 20
|
|
#define NAL_UNIT_CRA_NUT 21 // CRA = clean random access
|
|
#define NAL_UNIT_RESERVED_IRAP_VCL22 22
|
|
#define NAL_UNIT_RESERVED_IRAP_VCL23 23
|
|
#define NAL_UNIT_RESERVED_VCL24 24
|
|
#define NAL_UNIT_RESERVED_VCL25 25
|
|
#define NAL_UNIT_RESERVED_VCL26 26
|
|
#define NAL_UNIT_RESERVED_VCL27 27
|
|
#define NAL_UNIT_RESERVED_VCL28 28
|
|
#define NAL_UNIT_RESERVED_VCL29 29
|
|
#define NAL_UNIT_RESERVED_VCL30 30
|
|
#define NAL_UNIT_RESERVED_VCL31 31
|
|
#define NAL_UNIT_VPS_NUT 32
|
|
#define NAL_UNIT_SPS_NUT 33
|
|
#define NAL_UNIT_PPS_NUT 34
|
|
#define NAL_UNIT_AUD_NUT 35
|
|
#define NAL_UNIT_EOS_NUT 36
|
|
#define NAL_UNIT_EOB_NUT 37
|
|
#define NAL_UNIT_FD_NUT 38
|
|
#define NAL_UNIT_PREFIX_SEI_NUT 39
|
|
#define NAL_UNIT_SUFFIX_SEI_NUT 40
|
|
#define NAL_UNIT_RESERVED_NVCL41 41
|
|
#define NAL_UNIT_RESERVED_NVCL42 42
|
|
#define NAL_UNIT_RESERVED_NVCL43 43
|
|
#define NAL_UNIT_RESERVED_NVCL44 44
|
|
#define NAL_UNIT_RESERVED_NVCL45 45
|
|
#define NAL_UNIT_RESERVED_NVCL46 46
|
|
#define NAL_UNIT_RESERVED_NVCL47 47
|
|
|
|
#define NAL_UNIT_UNDEFINED 255
|
|
|
|
bool isIDR(uint8_t unit_type);
|
|
bool isBLA(uint8_t unit_type);
|
|
bool isCRA(uint8_t unit_type);
|
|
bool isRAP(uint8_t unit_type);
|
|
bool isRASL(uint8_t unit_type);
|
|
bool isIRAP(uint8_t unit_type);
|
|
bool isRADL(uint8_t unit_type);
|
|
bool isReferenceNALU(uint8_t unit_type);
|
|
bool isSublayerNonReference(uint8_t unit_type);
|
|
|
|
const char* get_NAL_name(uint8_t unit_type);
|
|
|
|
inline bool isIdrPic(uint8_t nal_unit_type) {
|
|
return (nal_unit_type == NAL_UNIT_IDR_W_RADL ||
|
|
nal_unit_type == NAL_UNIT_IDR_N_LP);
|
|
}
|
|
|
|
inline bool isRapPic(uint8_t nal_unit_type) {
|
|
return nal_unit_type >= 16 && nal_unit_type <= 23;
|
|
}
|
|
|
|
#endif
|
|
|