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High-level RTSP multimedia streaming library, in Rust
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README.md

retina

crates.io version Documentation CI

High-level RTSP multimedia streaming library, in Rust. Good support for ONVIF RTSP/1.0 IP surveillance cameras, as needed by Moonfire NVR. Works around brokenness in cheap closed-source cameras.

Progress:

  • client support
    • digest authentication.
    • RTP over TCP via RTSP interleaved channels.
    • RTP over UDP (experimental).
      • re-order buffer. (Out-of-order packets are dropped now.)
    • RTSP/1.0.
    • RTSP/2.0.
    • SRTP.
    • ONVIF backchannel support (for sending audio).
    • ONVIF replay mode.
    • receiving RTCP Sender Reports (currently only uses the timestamp)
    • sending RTCP Receiver Reports
  • server support
  • I/O modes
    • async with tokio
    • async-std. (Most of the crate's code is independent of the async library, so I don't expect this would be too hard to add.)
    • synchronous with std only
  • codec depacketization
    • video: H.264 (RFC 6184)
      • SVC
      • periodic infra refresh
      • multiple slices per picture
      • multiple SPS/PPS
      • interleaved mode
    • audio
      • AAC
        • interleaving
      • RFC 3551 codecs: G.711, G.723, L8/L16
    • application: ONVIF metadata
  • uniform, documented API. (Currently haphazard in terms of naming, what fields are exposed directly vs use an accessors, etc.)
  • quality errors
    • detailed error description text.
    • programmatically inspectable error type.
  • good functional testing coverage. (Currently lightly / unevenly tested.) Most depacketizers have no tests.)
  • fuzz testing. (In progress.)
  • benchmark

Currently very unstable: expect breaking API changes at every release as I work through items above.

Help welcome!

Getting started

Try the mp4 example. It streams from an RTSP server to a .mp4 file until you hit ctrl-C.

$ cargo run --example client mp4 --url rtsp://ip.address.goes.here/ --username admin --password test out.mp4
...
^C

Acknowledgements

This builds on the whole Rust ecosystem. A couple folks have been especially helpful:

Why "retina"?

It's a working name. Other ideas welcome. I started by looking at dictionary words with the letters R, T, S, and P in order and picking out ones related to video:

$ egrep '^r.*t.*s.*p' /usr/share/dict/words'
retinoscope close but too long, thus retina
retrospect good name for an NVR, but I already picked Moonfire
rotascope misspelling of "rotascope" (animation tool) or archaic name for "gyroscope"?

License

Your choice of MIT or Apache; see LICENSE-MIT.txt or LICENSE-APACHE, respectively.