码率(Bitrate)、帧率(FPS)、分辨率和清晰度的联系与区别:https://blog.csdn.net/pc9319/article/details/79621352
H.264编码原理以及I帧B帧P帧: https://www.cnblogs.com/herenzhiming/articles/5106178.html
H264协议:https://blog.csdn.net/chenhande1990chenhan/article/details/78744344
视频格式封装:https://blog.csdn.net/yibu_refresh/article/details/52829643