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hi3519dv500 vo 如何获取视频层和图像层叠加后的数据
hi3519dv500 vo 如何获取视频层和图像层叠加后的数据，有大佬知道不，dump的接口只能抓到视频层的，看文档有个视频回写的但是没有写可以使用的接口
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不支持，IPC芯片没有视频回写WBC功能
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啊，佬，那有没有曲线救国的方式
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只是用于截图吗？不知道IVE/VGS/TDE有没有啥高级的用法是能用的，这个我也没研究过
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截图和录屏
佬，有个问题请教一下，我读取/dev/fb0的数据出来，通过mmap映射出来嘛，但是发现去操作这一块内存的时候访问速度很慢，导致录下来的视频不流畅，有什么办法提升这个不，平台是19dv500
我的是1080P的，ui那边还说要做透明度只能用ARGB8888的，数据量太大，就是在操作fb的数据时候很废时，其他都还好
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或将文件直接拖到这里
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