使用 opengl 渲染多张连续图片 图片水平方向出现抖动问题

问题： 通过ffmpeg 将视频文件转换成图片，然后使用opengl 连续渲染图片，图片水平方向会出现抖动、闪烁问题。

原视频 1920 * 1080 60fps

可以很明显看出来，红色方块边缘出现闪烁现象，但vlc播放原视频却没有这个问题，很平滑向左面移动。
尝试过将图片缩小，转换成yuv，结果边缘都会出现闪烁问题。

请大家们指导指导，到底是那里出问题了 ？

实现代码:

#include<vector>
#include <string>
#include <iostream>
#include "glew.h"
#include "glut.h"

using namespace std;

GLuint myTex;
int flags = 0;
long currentFrame = 1;
long totalFrameNumber = 0;

char m_file[50];
int m_img_width, m_img_height;

BYTE* loadFileData(const char* filename) {
    FILE* img = NULL;
    fopen_s(&img, filename, "rb");
    unsigned long  size = 0;
    fseek(img, 18, SEEK_SET);
    fread(&m_img_width, 4, 1, img);
    fread(&m_img_height, 4, 1, img);
    fseek(img, 0, SEEK_END);
    size = ftell(img) - 54;
    unsigned char *data = (unsigned char*)malloc(size);
    fseek(img, 54, SEEK_SET);    // image data
    fread(data, size, 1, img);
    fclose(img);
    return data;
}

void display() {
    glClear(GL_COLOR_BUFFER_BIT);

    BYTE* data = loadFileData(m_file);
    int w = m_img_width;
    int h = m_img_height;

    glGenTextures(1, &myTex);
    glBindTexture(GL_TEXTURE_2D, myTex);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_BGR_EXT, GL_UNSIGNED_BYTE, data);

    glEnable(GL_TEXTURE_2D);    // 启用纹理
    glBegin(GL_QUADS);
    glTexCoord2f(0.0f, 0.0f); glVertex2f(-1.0f, -1.0f);
    glTexCoord2f(0.0f, 1.0f); glVertex2f(-1.0f, 1.0f);  
    glTexCoord2f(1.0f, 1.0f); glVertex2f(1.0f, 1.0f);
    glTexCoord2f(1.0f, 0.0f); glVertex2f(1.0f, -1.0f);
    glEnd();

    //glPopAttrib();
    glDisable(GL_TEXTURE_2D);

    //glFlush();
    glutSwapBuffers();
    free(data);
}


void timefunc(int value) {
    if (currentFrame <= 599) {
        sprintf(m_file, "out\\%d.bmp", ++currentFrame);
    }
    else {
        sprintf(m_file, "out\\%d.bmp", currentFrame);
    }
    display();
    glutTimerFunc(40, timefunc, 0);
}

int main(int argc, char* argv[])
{
    sprintf(m_file, "out\\%d.bmp", currentFrame);

    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_MULTISAMPLE);
    glutInitWindowSize(1920, 1081);
    glutInitWindowPosition(0, 0);
    glutCreateWindow("example");
    glEnable(GL_TEXTURE_2D);    // 启用纹理

    glutDisplayFunc(display);
    //glutIdleFunc(stepDisplay);
    glutTimerFunc(40, timefunc, 0);
    glutMainLoop();

    system("pause");
    return 0;
}