用的是pyqt的qslider实现的进度条，但是不知道如何传递鼠标在进度条的位置，以及视频帧的获取
我有写过一个qt实现的视频播放器https://blog.csdn.net/weixin_43676892/article/details/110640642?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522166901597416782414947362%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=166901597416782414947362&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~rank_v31_ecpm-2-110640642-null-null.nonecase&utm_term=%E8%A7%86%E9%A2%91&spm=1018.2226.3001.4450