参考https://en.wikipedia.org/wiki/Template:Compression_formats，结合本人对音视频处理接触到的内容，后续学习可从以下几个主体入手：
Audio
- MP3
- mp4a/aac
- wav
- AC3/DRA/Real Audio
Video
- MPEG-1/2/4
- H264
- HEVC
- Real Video
Containers
- flv
- avi
- mp4
- wmv
- mkv(Matroska WebM)
- mov
- 3gp
- rmvb
Image
- bmp
- jpg
- png
- gif
Stream Media
protocol
- P2P(UDP/TCP)
- HTTP
- HLS
- RTMP
- RTP、RTCP、RTSP
- Microsoft's Smooth Streaming
- Adobe's HDS
- non-proprietary formats such as MPEG-DASH
- CDN
Server
- Windows Media Services 9
- RealNetworks公司新近发布的Helix Platform
- Apple新近发布的Darwin streaming server 4.1
- multirate、multiscreen、adaptive、intelligent
- high performance
stream media systems comparation
streaming media system lists
video services
Client
- FFmpeg
- Render（SDL、DirectX、OpenGL）
- Plugin（IE、Chrome、Firefox）
- Cloud Transcoding
- TV set(Set Top Box, STB)
- Mobile Device(Pad, Phone, Auto)