H265裸流解码及内存指针队列使用示例

1. HEVC 裸流解码:

main.cpp

#include <iostream>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/imgutils.h>
#include <libswscale/swscale.h>
}

#include "iomanip"


#include <cstdint>
#include <vector>

enum NALUnitType {
    TRAIL_N = 1, TRAIL_R = 0, IDR_W_RADL = 19, IDR_N_LP = 20, CRA_NUT = 21
};

enum SliceType { P_SLICE = 0, B_SLICE = 1, I_SLICE = 2 };

// 模拟从比特流中读取 Exp-Golomb 编码
uint32_t readExpGolomb(uint8_t* data, size_t& bitOffset) {
    uint32_t leadingZeros = 0;
    while ((data[bitOffset / 8] & (1 << (7 - (bitOffset % 8)))) == 0) {
        leadingZeros++;
        bitOffset++;
    }
    bitOffset++; // 跳过终止位 '1'
    uint32_t val