• ffmpeg-3.4.8
• emscripten-2.0

• H.264
• H.265
• Mpeg2
• Mpeg4
• VP8
• VP9

• Mkv
• Mov
• Avi
• Mp4
• Webm

• 编译前需要下载 ffmpeg-3.4.8.tar.xz 并解压至与 web-capture 同级的目录

• emsdk 安装目录需要与 web-capture 同级

https://www.jianshu.com/p/d08c0cff8a77 https://juejin.im/entry/5afd7963f265da0ba3524439 http://dranger.com/ffmpeg/tutorial01.html https://zhuanlan.zhihu.com/p/40786748 https://blog.csdn.net/shixin_0125/article/details/106937186 https://www.cnblogs.com/renhui/p/6922971.html https://cloud.tencent.com/developer/article/1393972 https://www.jianshu.com/p/3c95b0471d3a