RTP

	supported codecs
video	AV1, VP9, VP8, H265, H264, MPEG-4 Video (H263, Xvid), MPEG-1/2 Video, M-JPEG
audio	Opus, MPEG-4 Audio (AAC), MPEG-1/2 Audio (MP3), AC-3, G726, G722, G711 (PCMA, PCMU), LPCM
other	KLV, MPEG-TS, any RTP-compatible codec

The server supports ingesting RTP streams, transmitted with UDP packets.

In order to read a UDP RTP stream, edit mediamtx.yml and replace everything inside section paths with the following content:

yml

paths:
  mypath:
    source: udp+rtp://238.0.0.1:1234
    rtpSDP: |
      v=0
      o=- 123456789 123456789 IN IP4 192.168.1.100
      s=H264 Video Stream
      c=IN IP4 192.168.1.100
      t=0 0
      m=video 5004 RTP/AVP 96
      a=rtpmap:96 H264/90000

rtpSDP must contain a valid SDP, that is a description of the RTP session.

If the listening IP is a multicast IP, MediaMTX will listen for incoming packets on the default multicast interface, picked by the operating system. It is possible to specify the interface manually by using the interface parameter:

yml

paths:
  mypath:
    source: udp+rtp://238.0.0.1:1234?interface=eth0
    rtpSDP: |
      v=0
      o=- 123456789 123456789 IN IP4 192.168.1.100
      s=H264 Video Stream
      c=IN IP4 192.168.1.100
      t=0 0
      m=video 5004 RTP/AVP 96
      a=rtpmap:96 H264/90000

It is possible to restrict who can send packets by using the source parameter:

yml

paths:
  mypath:
    source: udp+rtp://238.0.0.1:1234?source=192.168.3.5
    rtpSDP: |
      v=0
      o=- 123456789 123456789 IN IP4 192.168.1.100
      s=H264 Video Stream
      c=IN IP4 192.168.1.100
      t=0 0
      m=video 5004 RTP/AVP 96
      a=rtpmap:96 H264/90000

Some clients that can publish with UDP and MPEG-TS are FFmpeg and GStreamer.