Video查询，自动检测scene,分段，按照指定特性，速度快-Video inquiries, automatic scene detection, segmentation, in accordance with specified characteristics, speed

多路视频混合录制器，可以输入一路主视频，一路音频，一路或两路子视频，两路视频可在主视频的四个角上切换，能自动检测视频大小改变重置缩放，混合后使用ffmpeg编码压缩为H264的MP4文件，采用双次编码。-Multi-channel video recording mix, you can enter all the way to the main video, one audio, one or two ways of video, two-way video is available on t