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https://github.com/OpenIPC/smolrtsp

A lightweight real-time streaming library for IP cameras
https://github.com/OpenIPC/smolrtsp

audio c c-library embedded h264 h265 media-server network-protocol rtp rtsp rtsp-client rtsp-server streaming video

Last synced: about 2 months ago
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A lightweight real-time streaming library for IP cameras

Host: GitHub
URL: https://github.com/OpenIPC/smolrtsp
Owner: OpenIPC
License: mit
Created: 2020-11-13T17:29:11.000Z (almost 4 years ago)
Default Branch: master
Last Pushed: 2024-04-05T11:49:47.000Z (6 months ago)
Last Synced: 2024-04-14T09:59:12.406Z (5 months ago)
Topics: audio, c, c-library, embedded, h264, h265, media-server, network-protocol, rtp, rtsp, rtsp-client, rtsp-server, streaming, video
Language: C
Homepage: https://openipc.github.io/smolrtsp/
Size: 29.3 MB
Stars: 154
Watchers: 12
Forks: 32
Open Issues: 4
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE

Awesome Lists containing this project

awesome-ip-camera - smolrtsp

README

        ![OpenIPC Logo](https://cdn.themactep.com/images/logo_openipc.png)

# SmolRTSP

[![CI](https://github.com/Hirrolot/smolrtsp/workflows/C/C++%20CI/badge.svg)](https://github.com/Hirrolot/smolrtsp/actions)

[![Docs](https://img.shields.io/badge/docs-latest-blue)](https://openipc.org/smolrtsp/files.html)

SmolRTSP is a simple [RTSP 1.0] server library tailored for embedded devices, such as IP cameras. It supports both TCP and UDP, allows any payload format, and provides a convenient and flexible API.

[RTSP 1.0]: https://datatracker.ietf.org/doc/html/rfc2326

## Highlights

 - **Small.** SmolRTSP is designed for use in embedded systems (e.g., IP cameras).

 - **Unopinionated.** You can use SmolRTSP with bare POSIX sockets, [libevent], or any other network framework.

 - **Zero-copy.** SmolRTSP does not allocate or copy data while parsing.

 - **Battle-tested.** SmolRTSP is used by [Majestic], an IP camera streamer developed by [OpenIPC].

[libevent]: https://libevent.org/

[array slices]: https://github.com/Hirrolot/slice99

[Majestic]: https://openipc.github.io/wiki/en/majestic-streamer.html

[OpenIPC]: https://openipc.org/

## Features

 - Supported protocols:

   - [x] RTSP 1.0 ([RFC 2326])

   - [x] RTP ([RFC 3550])

   - [x] RTP over TCP (interleaved binary data)

   - [x] RTP over UDP

   - [x] SDP ([RFC 4566])

   - [ ] RTCP

 - Supported RTP payload formats:

   - [x] H.264 ([RFC 6184])

   - [x] H.265 ([RFC 7798])

[RFC 3550]: https://datatracker.ietf.org/doc/html/rfc3550

[RFC 4566]: https://datatracker.ietf.org/doc/html/rfc4566

[RFC 2326]: https://datatracker.ietf.org/doc/html/rfc2326

[RFC 6184]: https://datatracker.ietf.org/doc/html/rfc6184

[RFC 7798]: https://datatracker.ietf.org/doc/html/rfc7798

## Installation

If you use CMake, the recommended way is [`FetchContent`]:

[`FetchContent`]: https://cmake.org/cmake/help/latest/module/FetchContent.html

```cmake

include(FetchContent)

FetchContent_Declare(

    smolrtsp

    URL https://github.com/OpenIPC/smolrtsp/archive/refs/tags/v1.2.3.tar.gz # v1.2.3

)

FetchContent_MakeAvailable(smolrtsp)

target_link_libraries(MyProject smolrtsp)

```

### Options

| Option | Description | Default |

|--------|-------------|---------|

| `SMOLRTSP_SHARED` | Build a shared library instead of static. | `OFF` |

| `SMOLRTSP_FULL_MACRO_EXPANSION` | Show full macro expansion backtraces (**DANGEROUS**: may impair diagnostics and slow down compilation). | `OFF` |

## Usage

A simple example server that streams H.264 video and G.711 Mu-Law audio can be found at [`examples/server.c`](examples/server.c).

![server demo](media/example-server-demo.png)

Run it as follows:

```

$ mkdir examples/build

$ cd examples/build

$ cmake .. && cmake --build .

$ sudo ./server

```

Then open a new terminal window to start playing:

```

$ ffplay rtsp://localhost

```

## Integration

SmolRTSP is agnostic to a network backend: you can run it atop of any network/event loop framework. Currently, we support the following integrations:

 - [`OpenIPC/smolrtsp-libevent`](https://github.com/OpenIPC/smolrtsp-libevent) ([libevent](https://libevent.org/))

Feel free to extend this list with your own integration code.

## Release procedure

 1. Update the `PROJECT_NUMBER` field in `Doxyfile`.

 2. Update `CHANGELOG.md`.

 3. Release the project in [GitHub Releases].

[GitHub Releases]: https://github.com/OpenIPC/smolrtsp/releases