mediamtx/README.md
2020-06-14 17:55:30 +02:00

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# rtsp-simple-server
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_rtsp-simple-server_ is a simple, ready-to-use and zero-dependency RTSP server, a software that allows multiple users to publish and read live video and audio streams. RTSP is a standardized protocol that defines how to perform these operations with the help of a server, that is contacted by both readers and publishers in order to negotiate a streaming protocol. The server is then responsible of relaying the publisher streams to the readers.
This software was developed with the aim of simulating a live camera feed for debugging purposes, and therefore to use files instead of real streams. Another reason for the development was the deprecation of _FFserver_, the component of the _FFmpeg_ project that allowed to create a RTSP server (but this server is not bounded to _FFmpeg_ and can be used with any software that supports publishing to RTSP).
Features:
* Read and publish streams via UDP and TCP
* Each stream can have multiple video and audio tracks, encoded in any format
* Publish multiple streams at once, each in a separate path, that can be read by multiple users
* Supports the RTP/RTCP streaming protocol
* Supports authentication
* Supports running a script when a client connects or disconnects
* Compatible with Linux, Windows and Mac, does not require any dependency or interpreter, it's a single executable
## Installation and basic usage
1. Download and extract a precompiled binary from the [release](https://github.com/aler9/rtsp-simple-server/releases) page.
2. Start the server:
```
./rtsp-simple-server
```
3. Publish a stream. For instance, you can publish a video file with _FFmpeg_:
```
ffmpeg -re -stream_loop -1 -i file.ts -c copy -f rtsp rtsp://localhost:8554/mystream
```
4. Open the stream. For instance, you can open the stream with _VLC_:
```
vlc rtsp://localhost:8554/mystream
```
or _GStreamer_:
```
gst-launch-1.0 -v rtspsrc location=rtsp://localhost:8554/mystream ! rtph264depay ! decodebin ! autovideosink
```
or _FFmpeg_:
```
ffmpeg -i rtsp://localhost:8554/mystream -c copy output.mp4
```
## Advanced usage and FAQs
#### Setup publisher authentication
1. Start the server and set a username and a password:
```
./rtsp-simple-server --publish-user=admin --publish-pass=mypassword
```
2. Only publishers that know both username and password will be able to publish:
```
ffmpeg -re -stream_loop -1 -i file.ts -c copy -f rtsp rtsp://admin:mypassword@localhost:8554/mystream
```
WARNING: RTSP is a plain protocol, and the credentials can be intercepted and read by malicious users (even if hashed, since the only supported hash method is md5, which is broken). If you need a secure channel, use RTSP inside a VPN.
#### How to perform remuxing, re-encoding, compression
_rtsp-simple-server_ is an RTSP server: it publishes existing streams and does not touch them. It is not a media server, that is a far more complex and heavy software that can receive existing streams, re-encode them and publish them.
To change the format, codec or compression of a stream, you can use _FFmpeg_ or _Gstreamer_ together with _rtsp-simple-server_, obtaining the same features of a media server. For instance, if we want to re-encode an existing stream, that is available in the `/original` path, and make the resulting stream available in the `/compressed` path, it is enough to launch _FFmpeg_ in parallel with _rtsp-simple-server_, with the following syntax:
```
ffmpeg -i rtsp://localhost:8554/original -c:v libx264 -preset ultrafast -tune zerolatency -b 600k -f rtsp rtsp://localhost:8554/compressed
```
#### Full command-line usage
```
usage: rtsp-simple-server [<flags>]
rtsp-simple-server v0.0.0
RTSP server.
Flags:
--help Show context-sensitive help (also try --help-long and --help-man).
--version print version
--protocols="udp,tcp" supported protocols
--rtsp-port=8554 port of the RTSP TCP listener
--rtp-port=8000 port of the RTP UDP listener
--rtcp-port=8001 port of the RTCP UDP listener
--read-timeout=5s timeout of read operations
--write-timeout=5s timeout of write operations
--publish-user="" optional username required to publish
--publish-pass="" optional password required to publish
--read-user="" optional username required to read
--read-pass="" optional password required to read
--pre-script="" optional script to run on client connect
--post-script="" optional script to run on client disconnect
```
#### Compile and run from source
Install Go &ge; 1.12, download the repository, open a terminal in it and run:
```
go build -o rtsp-simple-server . && ./rtsp-simple-server
```
If you have Docker installed, you can perform the entire operation with a single command:
```
make run
```
## Links
Related projects
* https://github.com/aler9/rtsp-simple-proxy
* https://github.com/aler9/gortsplib
* https://github.com/flaviostutz/rtsp-relay
IETF Standards
* RTSP 1.0 https://tools.ietf.org/html/rfc2326
* RTSP 2.0 https://tools.ietf.org/html/rfc7826
* HTTP 1.1 https://tools.ietf.org/html/rfc2616