转码相关：
https://evilmartians.com/chronicles/better-web-video-with-av1-codec
https://www.cnblogs.com/tinywan/p/6404411.html
https://trac.ffmpeg.org/wiki/Encode/H.264
https://evilmartians.com/chronicles/better-web-video-with-av1-codec
https://magiclen.org/vcodec/
https://magiclen.org/image-differencer/
https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
https://en.wikipedia.org/wiki/Advanced_Video_Coding
https://en.wikipedia.org/wiki/AV1
无损媒体资源地址：
https://media.xiph.org/
https://www.streamingmedia.com/Articles/Editorial/Featured-Articles/At-the-Battle-of-the-Codecs-Answers-on-AV1-HEVC-and-VP9-128213.aspx?utm_source=related_articles&utm_medium=gutenberg&utm_campaign=editors_selection
https://www.muvi.com/blogs/best-video-codec-for-streaming.html
https://aomedia.googlesource.com/aom
https://trac.ffmpeg.org/wiki/CompilationGuide
AV1 spec 地址：
https://aomedia.org/av1-features/get-started/
AV1-ISO-Base-Media-File-Format-Binding-Specification
质量评估：
https://magiclen.org/ffmpeg-psnr-ssim/
https://github.com/Netflix/vmaf
https://medium.com/netflix-techblog/toward-a-practical-perceptual-video-quality-metric-653f208b9652
https://www.jianshu.com/p/58f73b38a2ca
https://testerhome.com/topics/11888
https://juejin.im/post/5c1ca976e51d45436e1b94f6
https://github.com/Netflix/vmaf
https://zhuanlan.zhihu.com/p/23536648
https://www.jianshu.com/p/b97e4d15a400
http://yunxin.163.com/blog/video14-0809/
https://testerhome.com/topics/19932