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README.md

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+# JOY4
+
+> Golang audio/video library and streaming server
+
+JOY4 is powerful library written in golang, well-designed interface makes a few lines of code can do a lot of things such as reading, writing, transcoding among variety media formats, or setting up high-performance live streaming server.
+
+# Features 
+
+Well-designed and easy-to-use interfaces:
+
+- Muxer / Demuxer ([doc](https://pkg.go.dev/github.com/Danile71/joy4/av#Demuxer) [example](https://github.com/Danile71/joy4/blob/master/examples/open_probe_file/main.go))
+- Audio Decoder ([doc](https://pkg.go.dev/github.com/Danile71/joy4/av#AudioDecoder) [example](https://github.com/Danile71/joy4/blob/master/examples/audio_decode/main.go))
+- Transcoding ([doc](https://pkg.go.dev/github.com/Danile71/joy4/av/transcode) [example](https://github.com/Danile71/joy4/blob/master/examples/transcode/main.go))
+- Streaming server ([example](https://github.com/Danile71/joy4/blob/master/examples/http_flv_and_rtmp_server/main.go))
+
+Support container formats:
+
+- MP4
+- MPEG-TS
+- FLV
+- AAC (ADTS)
+
+RTSP Client
+- High level camera bug tolerance
+- Support STAP-A
+
+RTMP Client
+- Support publishing to nginx-rtmp-server
+- Support playing
+
+RTMP / HTTP-FLV Server 
+- Support publishing clients: OBS / ffmpeg / Flash Player (>8)
+- Support playing clients: Flash Player 11 / VLC / ffplay / mpv
+- High performance
+
+
+Publisher-subscriber packet buffer queue ([doc](https://pkg.go.dev/github.com/Danile71/joy4/av/pubsub))
+
+- Customize publisher buffer time and subscriber read position
+
+
+- Multiple channels live streaming ([example](https://github.com/Danile71/joy4/blob/master/examples/rtmp_server_channels/main.go))
+
+Packet filters ([doc](https://pkg.go.dev/github.com/Danile71/joy4/av/pktque))
+
+- Wait first keyframe
+- Fix timestamp
+- Make A/V sync
+- Customize ([example](https://github.com/Danile71/joy4/blob/master/examples/rtmp_server_channels/main.go#L19))
+
+FFMPEG Golang-style binding ([doc](https://pkg.go.dev/github.com/Danile71/joy4/cgo/ffmpeg))
+- Audio Encoder / Decoder
+- Video Decoder
+- Audio Resampler
+
+Support codec and container parsers:
+
+- H264 SPS/PPS/AVCDecoderConfigure parser ([doc](https://pkg.go.dev/github.com/Danile71/joy4/codec/h264parser))
+- AAC ADTSHeader/MPEG4AudioConfig parser ([doc](https://pkg.go.dev/github.com/Danile71/joy4/codec/aacparser))
+- MP4 Atoms parser ([doc](https://pkg.go.dev/github.com/Danile71/joy4/format/mp4/mp4io))
+- FLV AMF0 object parser ([doc](https://pkg.go.dev/github.com/Danile71/joy4/format/flv/flvio))
+
+# Requirements
+
+Go version >= 1.6
+
+ffmpeg version >= 3.0 (optional)
+
+# TODO
+
+HLS / MPEG-DASH Server
+
+ffmpeg.VideoEncoder / ffmpeg.SWScale
+
+# License
+
+MIT