87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
#pragma once
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#include <iostream>
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#include <fstream>
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#include <cstring>
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#include <vector>
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#include <string>
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// vuh_unit_type definitions:
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constexpr int V3C_VPS = 0; // V3C parameter set
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constexpr int V3C_AD = 1; // Atlas data
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constexpr int V3C_OVD = 2; // Occupancy video data
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constexpr int V3C_GVD = 3; // Geometry video data
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constexpr int V3C_AVD = 4; // Attribute video data
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constexpr int V3C_PVD = 5; // Packed video data
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constexpr int V3C_CAD = 6; // Common atlas data
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constexpr int CODEC_AVC = 0; // AVC Progressive High
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constexpr int CODEC_HEVC_MAIN10 = 1; // HEVC Main10
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constexpr int CODEC_HEVC444 = 2; // HEVC444
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constexpr int CODEC_VVC_MAIN10 = 3; // VVC Main10
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constexpr int V3C_HDR_LEN = 4; // 32 bits for v3c unit header
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constexpr uint8_t VVC_SC = 0x00000001; // VVC Start Code
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struct profile_tier_level {
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uint8_t ptl_tier_flag = 0;
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uint8_t ptl_profile_codec_group_idc = 0;
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};
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struct vuh_vps {
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profile_tier_level ptl;
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};
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struct vuh_ad {
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uint8_t vuh_v3c_parameter_set_id = 0;
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uint8_t vuh_atlas_id = 0;
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};
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struct vuh_ovd {
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uint8_t vuh_v3c_parameter_set_id = 0;
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uint8_t vuh_atlas_id = 0;
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};
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struct vuh_gvd {
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uint8_t vuh_v3c_parameter_set_id = 0;
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uint8_t vuh_atlas_id = 0;
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uint8_t vuh_map_index = 0;
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bool vuh_auxiliary_video_flag = 0;
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};
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struct vuh_avd {
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uint8_t vuh_v3c_parameter_set_id = 0;
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uint8_t vuh_atlas_id = 0;
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uint8_t vuh_attribute_index = 0;
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uint8_t vuh_attribute_partition_index = 0;
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uint8_t vuh_map_index = 0;
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bool vuh_auxiliary_video_flag = 0;
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};
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struct vuh_pvd {
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uint8_t vuh_v3c_parameter_set_id = 0;
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uint8_t vuh_atlas_id = 0;
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};
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struct vuh_cad {
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uint8_t vuh_v3c_parameter_set_id = 0;
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};
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struct v3c_unit_header {
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uint8_t vuh_unit_type = 0;
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union {
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vuh_vps vps;
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vuh_ad ad;
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vuh_ovd ovd;
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vuh_gvd gvd;
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vuh_avd avd;
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vuh_pvd pvd;
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vuh_cad cad;
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};
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};
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uint32_t combineBytes(uint8_t byte1, uint8_t byte2, uint8_t byte3, uint8_t byte4);
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uint32_t combineBytes(uint8_t byte1, uint8_t byte2, uint8_t byte3);
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uint32_t combineBytes(uint8_t byte1, uint8_t byte2);
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uint64_t get_size(std::string filename);
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char* get_cmem(std::string filename, const size_t& len);
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// ad is for AD and CAD substreams, vd is for all VD substreams
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bool mmap_v3c_file(char* cbuf, uint64_t len, vuh_vps& param, std::vector<std::pair<uint64_t, uint64_t>>& ad,
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std::vector<std::pair<uint64_t, uint64_t>>& vd);
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void parse_v3c_header(v3c_unit_header &hdr, char* buf, uint64_t ptr); |