2张yuv数据（1920*1080）叠加要求性能在40ms以内

opengl 或者d3d要怎么实现 或者有其他方法

您好，YUV数据叠加要求限制在40ms内，请问是希望做视频图像拼接吗？

请更详细说明一下问题中的“叠加”。是仅限两张图像原大小覆盖，还是缩放情况下拼接，或是其他需求？

屏幕上叠加个摄像头，是类似于这样吗：

https://blog.csdn.net/zhouyongku/article/details/41551711?utm_medium=distribute.pc_relevant_bbs_down.none-task-blog-baidujs-2.nonecase&depth_1-utm_source=distribute.pc_relevant_bbs_down.none-task-blog-baidujs-2.nonecase

https://github.com/inastitch/raspivid-inatech

https://github.com/inastitch/inastitch/tree/master/tools/calibration

https://blog.csdn.net/shuilan0066/article/details/104494187?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522161527950316780269874363%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=161527950316780269874363&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v1~rank_blog_v1-3-104494187.pc_v1_rank_blog_v1&utm_term=yuv

YUV合成视频帧  可以参考这个

以及这篇

https://blog.csdn.net/shuilan0066/article/details/90764497?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522161527950316780269874363%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=161527950316780269874363&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v1~rank_blog_v1-7-90764497.pc_v1_rank_blog_v1&utm_term=yuv

YUVI420 视频 裁剪 缩放 拷贝