github.com/aler9/gortsplib/v2

gortsplib

RTSP 1.0 client and server library for the Go programming language, written for rtsp-simple-server.

Go ≥ 1.18 is required.

WARNING: the main branch contains code of the v2 version. The legacy v1 version is hosted in the v1 branch.

Features:

• Client
  • Query servers about available media streams
  • Read
    • Read media streams from servers with the UDP, UDP-multicast or TCP transport protocol
    • Read TLS-encrypted streams (TCP only)
    • Switch transport protocol automatically
    • Read only selected media streams
    • Pause or seek without disconnecting from the server
    • Generate RTCP receiver reports (UDP only)
    • Reorder incoming RTP packets (UDP only)
  • Publish
    • Publish media streams to servers with the UDP or TCP transport protocol
    • Publish TLS-encrypted streams (TCP only)
    • Switch transport protocol automatically
    • Pause without disconnecting from the server
    • Generate RTCP sender reports
• Server
  • Handle requests from clients
  • Sessions and connections are independent
  • Publish
    • Read media streams from clients with the UDP or TCP transport protocol
    • Read TLS-encrypted streams (TCP only)
    • Generate RTCP receiver reports (UDP only)
    • Reorder incoming RTP packets (UDP only)
  • Read
    • Write media streams to clients with the UDP, UDP-multicast or TCP transport protocol
    • Write TLS-encrypted streams
    • Compute and provide SSRC, RTP-Info to clients
    • Generate RTCP sender reports
• Utilities
  • Parse RTSP elements
  • Encode/decode format-specific frames into/from RTP packets. The following formats are supported:
    • Video: H264, H265, M-JPEG, VP8, VP9
    • Audio: G711 (PCMA, PCMU), G722, LPCM, MPEG4 Audio (AAC), Opus
  • Parse codec-specific elements. The following codecs are supported:
    • Video: H264, H265, M-JPEG
    • Audio: MPEG4 Audio (AAC)

Important announcement

my main open source projects are being transferred to the bluenviron organization, in order to allow the community to maintain and evolve the code regardless of my personal availability.

In the next months, the repository name will be changed accordingly.

Table of contents

• Examples
• API Documentation
• Standards
• Links

Examples

• client-query
• client-read
• client-read-options
• client-read-pause
• client-read-republish
• client-read-format-g711
• client-read-format-g722
• client-read-format-h264
• client-read-format-h264-convert-to-jpeg
• client-read-format-h264-save-to-disk
• client-read-format-h265
• client-read-format-lpcm
• client-read-format-mjpeg
• client-read-format-mpeg4audio
• client-read-format-opus
• client-read-format-vp8
• client-read-format-vp9
• client-publish-options
• client-publish-pause
• client-publish-format-g711
• client-publish-format-g722
• client-publish-format-h264
• client-publish-format-h265
• client-publish-format-lpcm
• client-publish-format-mjpeg
• client-publish-format-mpeg4audio
• client-publish-format-opus
• client-publish-format-vp8
• client-publish-format-vp9
• server
• server-tls
• server-h264-save-to-disk
• proxy

API Documentation

https://pkg.go.dev/github.com/aler9/gortsplib/v2#pkg-index

Standards

• RTSP 1.0 https://www.rfc-editor.org/rfc/rfc2326
• RTSP 2.0 https://www.rfc-editor.org/rfc/rfc7826
• RTP Profile for Audio and Video Conferences with Minimal Control https://www.rfc-editor.org/rfc/rfc3551
• RTP Payload Format for MPEG1/MPEG2 Video https://www.rfc-editor.org/rfc/rfc2250
• RTP Payload Format for JPEG-compressed Video https://www.rfc-editor.org/rfc/rfc2435
• RTP Payload Format for H.264 Video https://www.rfc-editor.org/rfc/rfc6184
• RTP Payload Format for High Efficiency Video Coding (HEVC) https://www.rfc-editor.org/rfc/rfc7798.html
• RTP Payload Format for VP8 Video https://www.rfc-editor.org/rfc/rfc7741.html
• RTP Payload Format for VP9 Video https://datatracker.ietf.org/doc/html/draft-ietf-payload-vp9-16
• RTP Payload Format for 12-bit DAT Audio and 20- and 24-bit Linear Sampled Audio https://www.rfc-editor.org/rfc/rfc3190.html
• RTP Payload Format for the Opus Speech and Audio Codec https://www.rfc-editor.org/rfc/rfc7587.html
• RTP Payload Format for MPEG-4 Audio/Visual Streams https://www.rfc-editor.org/rfc/rfc6416
• RTP Payload Format for Transport of MPEG-4 Elementary Streams https://www.rfc-editor.org/rfc/rfc3640.html
• ITU-T Rec. H.264 (08/2021) https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-H.264-202108-I!!PDF-E&type=items
• ITU-T Rec. H.265 (08/2021) https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-H.265-202108-I!!PDF-E&type=items
• ISO 14496-3, Coding of audio-visual objects, part 3, Audio
• Golang project layout https://github.com/golang-standards/project-layout

Links

Related projects

• rtsp-simple-server https://github.com/aler9/rtsp-simple-server
• pion/sdp (SDP library used internally) https://github.com/pion/sdp
• pion/rtp (RTP library used internally) https://github.com/pion/rtp
• pion/rtcp (RTCP library used internally) https://github.com/pion/rtcp