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🔥 Golang audio/video live streaming library/client/server. support RTMP, RTSP(RTP/RTCP), HLS, HTTP[S]/WebSocket[S]-FLV/TS, H264/H265/AAC, relay, cluster, record, HTTP API/Notify. 直播


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LAL is an audio/video live streaming broadcast server written in Go. It's sort of like nginx-rtmp-module, but easier to use and with more features, e.g RTMP, RTSP(RTP/RTCP), HLS, HTTP[S]/WebSocket[s]-FLV/TS, H264/H265/AAC, relay, cluster, record, HTTP API/Notify, GOP cache.

And more than a server, act as package and client


There are 3 ways of installing lal:

1. Building from source

First, make sure that Go version >= 1.14

For Linux/macOS user:

$git clone
$cd lal
$make build

Then all binaries go into the ./bin/ directory. That's it.

For an experienced gopher(and Windows user), the only thing you should be concern is that the main function is under the ./app/lalserver directory. So you can also:

$git clone
$cd lal/app/lalserver
$go build

Or using whatever IDEs you'd like.

So far, the only direct and indirect dependency of lal is naza(A basic Go utility library) which is also written by myself. This leads to less dependency or version manager issues.

2. Prebuilt binaries

Prebuilt binaries for Linux, macOS(Darwin), Windows are available in the lal github releases page. Naturally, using the latest release binary is the recommended way. The naming format is lal_<version>_<platform>.zip, e.g.

LAL could also be built from the source wherever the Go compiler toolchain can run, e.g. for other architectures including arm32 and mipsle which have been tested by the community.

3. Docker

option 1, using prebuilt image at docker hub, so just run:

$docker run -it -p 1935:1935 -p 8080:8080 -p 4433:4433 -p 5544:5544 -p 8083:8083 -p 8084:8084 -p 30000-30100:30000-30100/udp q191201771/lal /lal/bin/lalserver -c /lal/conf/lalserver.conf.json

option 2, build from local source with Dockerfile, and run:

$git clone
$cd lal
$docker build -t lal .
$docker run -it -p 1935:1935 -p 8080:8080 -p 4433:4433 -p 5544:5544 -p 8083:8083 -p 8084:8084 -p 30000-30100:30000-30100/udp lal /lal/bin/lalserver -c /lal/conf/lalserver.conf.json


Running lalserver:

$./bin/lalserver -c ./conf/lalserver.conf.json

Using whatever clients you are familiar with to interact with lalserver.

For instance, publish rtmp stream to lalserver via ffmpeg:

$ffmpeg -re -i demo.flv -c:a copy -c:v copy -f flv rtmp://

Play multi protocol stream from lalserver via ffplay:

$ffplay rtmp://
$ffplay rtsp://

More than a server, act as package and client

Besides a live stream broadcast server which named lalserver precisely, project lal even provides many other applications, e.g. push/pull/remux stream clients, bench tools, examples. Each subdirectory under the ./app/demo directory represents a tiny demo.

Our goals are not only a production server but also a simple package with a well-defined, user-facing API, so that users can build their own applications on it.

LAL stands for Live And Live if you may wonder.


Bugs, questions, suggestions, anything related or not, feel free to contact me with lal github issues.


MIT, see License.

updated by yoko, 20211204