SRT listener & caller
Run the encoder as an SRT listener waiting on a known UDP port, or as a caller that dials out to a remote listener. Caller mode gets a field kit out through NAT and firewalls without inbound rules.
Both modes
Windows Encoder SoftwareIP Multicoder captures SDI, HDMI, analogue or DeckLink sources, encodes them with H.264 and publishes over SRT, RTMP or UDP — to BeStream ingest, any standards-compliant media server, or a point-to-point receiver.
Built for contribution chains where the link is unreliable and the feed cannot drop: SRT listener and caller modes, RTMP primary and backup publishing, hybrid outputs, alarms and full system logs.
A contribution encoder built around one requirement: the feed leaves the venue and arrives, even when the network in between is not cooperating.
Run the encoder as an SRT listener waiting on a known UDP port, or as a caller that dials out to a remote listener. Caller mode gets a field kit out through NAT and firewalls without inbound rules.
Publish to a primary and a backup RTMP endpoint at the same time. If one path degrades, the contribution feed keeps running on the other instead of dropping the programme.
Take HD or SD SDI, HDMI and analogue sources through supported capture hardware including Blackmagic DeckLink cards. An incoming SRT stream or UDP transport stream can also be used as the source.
Send MPEG-TS over UDP to a single destination or to a multicast group address for in-house distribution, DVB workflows and headend integration.
Control resolution, frame rate, encoder preset, H.264 profile and level, GOP length and rate control. Both CBR for fixed-bandwidth links and VBR for quality-first delivery.
Upscale or downscale independently of the source resolution, and switch between interlaced and progressive output so the contribution feed matches what the receiver expects.
Watch bitrate, uptime, connection state and packet loss while the encoder runs, so a degrading link is visible before it becomes a dropped feed.
Configurable alarm conditions surface input loss, connection failures and encoding faults immediately rather than leaving an operator to notice a frozen preview.
Full system event and debug logging for post-incident analysis, so an intermittent problem on a contribution link can actually be traced instead of guessed at.
SRT carries AES encryption as a native part of the protocol, so a contribution feed crossing the public internet stays protected in transit without an extra VPN layer.
Run encoding on CPU, or use supported hardware acceleration to keep headroom free when several instances share one machine.
Runs on 64-bit Windows 10, Windows 11 and Windows Server, so it drops into an existing broadcast PC or rack machine without a new operating system to maintain.
One source in, several protocols out at the same time — including hybrid combinations for parallel delivery paths.
Inputs
OutputsEvery parameter below is adjustable per encoder instance from the settings dashboard.
| Video codec | H.264 / AVC |
|---|---|
| Profile & level | Baseline, Main and High profiles with selectable level (for example High @ L4.1) |
| Rate control | CBR for fixed-bandwidth contribution links, VBR where quality matters more than a flat bitrate |
| Resolution | SD through HD, with independent upscaling and downscaling from the source |
| Frame rate | Selectable per instance; interlaced and progressive output both supported |
| GOP structure | Configurable GOP length to balance latency against compression efficiency |
| Encoder presets | Speed and quality presets, plus manual override of individual parameters |
| SRT modes | Listener and caller, with configurable latency buffer and passphrase encryption |
| RTMP publishing | Primary and backup endpoints, published in parallel |
| UDP output | MPEG-TS, unicast or multicast group address |
| Hybrid modes | RTMP + SRT and RTMP + UDP running concurrently |
| Monitoring | Live bitrate, uptime, connection state and packet loss |
| Alarms & logs | Configurable alarm conditions, system event log and debug log |
| Operating system | 64-bit Windows 10, Windows 11 and Windows Server |
| Licensing | 15-day trial licence on request; commercial licence quoted per deployment |
Specifications reflect the current release and may change between versions. For a workflow-specific confirmation before purchase, ask our team.
Screenshots from the running encoder — click any image to open it full size.
Three contribution patterns IP Multicoder is regularly deployed for.
A field kit at a stadium, conference hall or house of worship sends a resilient feed back to the gallery over the public internet. Caller mode dials out, so the venue network needs no inbound firewall rules.
A programme feed goes out to a streaming platform while a second RTMP endpoint stays live in parallel. If the primary path degrades mid-broadcast, the backup is already publishing.
One encode feeds both an external platform and an internal network at once. The hybrid RTMP+UDP mode publishes to the platform while multicasting MPEG-TS to in-house receivers.
Sizing depends on resolution, bitrate and how many encoder instances share the machine. Tell us your workflow and we will confirm what the hardware needs to be.
Tell us your source type, target bitrate and destination and we will send the download link with activation steps, plus a configuration that matches your workflow.
