elsampsa/websocket-mse-demo[1] 项目介绍:
实现了浏览器 MSE (Media Source Extensions) 播放相机 RTSP (Real Time Streaming Protocol) 流。动手体验一下咯~
准备
# 系统 Ubuntu 18
# 如有 conda 虚拟环境,请停用
# conda deactivate
# 获取代码
git clone --depth 1
# 安装 libValkka
sudo apt-add-repository ppa:sampsa-riikonen/valkka
sudo apt-get update
sudo apt-get install valkka
# 安装 nginx
sudo apt-get install nginx
# 安装 python websockets
pip3 install websockets
# 准备 nginx 用户权限
sudo addgroup nginx
sudo adduser $USER nginx
sudo chgrp -R nginx /var/lib/nginx /var/log/nginx
sudo chmod -R g+r+w+x /var/lib/nginx /var/log/nginx
# 切换用户组
newgrp nginx
id
# 测试 nginx 工作是否正常(无 Permission denied)
cd websocket-mse-demo
nginx -p $PWD -c ./nginx.conf -g 'error_log error.log warn;'
# 设置相机发送 H264(该项目只支持 H264)
使用
发送 RTSP 流:
sudo snap install vlc
# allow camera permission
snap connect vlc:camera :camera
# 发送 ~/Videos/test.mp4 文件(循环)
#
vlc file:///$HOME/Videos/test.mp4 --loop \
--sout '#gather:transcode{vcodec=h264}:rtp{sdp=rtsp://:8554/test}' \
--network-caching=1500 --sout-all --sout-keep
# 或,发送 /dev/video0 webcam(实时)
vlc v4l2:///dev/video0:chroma=yuyv:width=640:height=480:fps=30 \
--sout '#transcode{vcodec=h264,width=640,height=480}: rtp {sdp=rtsp://:8554/test}'
# 测试接收 RTSP 流
vlc rtsp://127.0.0.1:8554/test
启动程序:
killall -9 nginx
python3 ws_serve_new.py rtsp://127.0.0.1:8554/test
打开浏览器:
xdg-open
更多
技术:
- WebSocket[2]
- MediaSource[3] : 构建媒体流,供 video/audio 元素播放
- WebRTC[4] : 可直接捕获客户端视频流,并点对点传输、不依赖服务器中转
- WebCodecs[5] : 编解码音视频
- WebAssembly[6] : C/C++/Rust 等编译进前端使用
- ffmpeg wasm/ffmpeg.wasm[7]
- GoogleChromeLabs/webm-wasm[8]
项目:
- MSE: 需构建流,通常容器格式是 ISO BMFF (Fragmented MP4) = fMP4
- elsampsa/websocket-mse-demo[9] : RTSP > fMP4
- ChihChengYang/wfs.js[10] : H.264 NAL > fMP4
- bilibili/flv.js[11] : FLV > fMP4
- Garefield/RTSP-WS-Proxy[12] : RTSP > fMP4
- Streamedian/html5_rtsp_player[13] : RTSP > fMP4, Proxy 收费
- JS 解码 phoboslab/jsmpeg[14] : MPEG1 Video & MP2 Audio Decoder
- kyriesent/node-rtsp-stream[15]
- wanghaoxi3000/gin-rtsp[16]
- YE-Fan/JAVA-RTSP-JSMpeg[17]
- Aleckgt/rtsp-ws-proxy[18]
- k-yle/rtsp-relay[19]
- mbebenita/Broadway[20] : H.264 decoder
- 131/h264-live-player[21]
- Wasm 解码
- sonysuqin/WasmVideoPlayer[22] : H265 > YUV, WebGL
- wupeng-engineer/decoder_wasm[23] : H264,H265 > YUV, WebGL
- gliese1337/h264decoder[24] : H264 > YUV
- mattdesl/mp4-h264[25] : H264 > YUV/RGB
- mattdesl/mp4-wasm[26] : H264
- 其他
- HTML5 RTSP player[27] : 收费
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脚注
[1] elsampsa/websocket-mse-demo:
[2] WebSocket:
[3] MediaSource:
[4] WebRTC:
[5] WebCodecs:
[6] WebAssembly:
[7] ffmpegwasm/ffmpeg.wasm:
[8] GoogleChromeLabs/webm-wasm:
[9] elsampsa/websocket-mse-demo:
[10] ChihChengYang/wfs.js:
[11] bilibili/flv.js:
[12] Garefield/RTSP-WS-Proxy:
[13] Streamedian/html5_rtsp_player:
[14] phoboslab/jsmpeg:
[15] kyriesent/node-rtsp-stream:
[16] wanghaoxi3000/gin-rtsp:
[17] YE-Fan/JAVA-RTSP-JSMpeg:
[18] Aleckgt/rtsp-ws-proxy:
[19] k-yle/rtsp-relay:
[20] mbebenita/Broadway:
[21] 131/h264-live-player:
[22] sonysuqin/WasmVideoPlayer:
[23] wupeng-engineer/decoder_wasm:
[24] gliese1337/h264decoder:
[25] mattdesl/mp4-h264:
[26] mattdesl/mp4-wasm:
[27] HTML5 RTSP player: