How to Broadcast with OBS Studio or a Mobile RTMP Encoder

How to Broadcast with OBS Studio or a Mobile RTMP Encoder

The HTML5 Videochat interface accepts RTMP streams from any encoder — OBS Studio on desktop, Larix Broadcaster on mobile, or any other RTMP-compatible app. This enables professional-quality streaming from dedicated hardware or software without being limited to browser-only broadcasting.

Requirements

– A site running Broadcast Live Video with a VideoWhisper Server or Wowza SE connection

– A channel configured with roomInterface = html5app (HTML5 Videochat)

– OBS Studio (PC/Mac/Linux) or Larix Broadcaster (iOS/Android)

Getting Your Stream Settings

  1. Log in to your site and go to your channel page
  1. From the channel menu, open External Encoders (or Broadcast → External Apps)
  1. Copy the Server URL and Stream Key shown for your channel

These two values are all you need to configure any RTMP encoder.

Setting Up OBS Studio

  1. Open OBS → Settings → Stream tab
  1. Set Service to Custom
  1. Paste your Server URL into the Server field
  1. Paste your Stream Key into the Stream Key field
  1. Click Apply and OK
  1. Click Start Streaming

Recommended OBS settings:

– Video bitrate: 1000–4000 kbps depending on resolution

– Audio bitrate: 128–192 kbps

– Resolution: 1280×720 or 1920×1080

– Encoder: x264 (software) or hardware encoder if available

Setting Up Larix Broadcaster (Mobile)

Larix Broadcaster is a free, professional RTMP app for iOS and Android — the recommended replacement for the discontinued Wowza GoCoder.

  1. Download Larix Broadcaster from the App Store or Google Play
  1. Open Settings → Connections → tap + to add a new connection
  1. Enter a name (e.g., your site name)
  1. Set URL to your Server URL + / + your Stream Key (combined as one RTMP URL, e.g., rtmp://your-server/live/streamkey)
  1. Tap Save and return to the main screen
  1. Tap the record button to start streaming

Viewers Watch via HLS/DASH

Once your encoder starts sending RTMP, the channel automatically becomes live. Viewers on your site watch via:

– HLS — iOS, Android, and all mobile browsers

– MPEG-DASH — desktop browsers with adaptive bitrate

– WebRTC — if available, for lowest latency playback Chat is active alongside the stream for real-time viewer interaction.

See Also

– Videochat & Tipping Platform →

– Get a Turnkey Hosted Site →

How to Broadcast Live Video from Your Browser with WebRTC

How to Broadcast Live Video from Your Browser with WebRTC

The Broadcast Live Video plugin includes a Webcam App — a React-based WebRTC broadcasting interface that lets you go live directly from any modern browser, with no software download required.

Requirements

– A site running Broadcast Live Video with a VideoWhisper Server connection (included in all site2stream.com plans)

– A modern browser with camera/microphone access (Chrome, Firefox, Safari, Edge)

– A channel configured with roomInterface = webcamapp

Step 1: Go to Your Channel Page

Log in to your site and navigate to the Broadcast Live page or your channel. From the channel menu, click Broadcast (or the WebRTC/Webcam App option). The browser will request access to your camera and microphone — allow it.

Step 2: Select Devices and Go Live

The Webcam App interface shows a preview of your camera feed. Before going live: – Select your camera from the Video source dropdown

– Select your microphone from the Audio source dropdown

– Choose your view mode: BroadcastChat (broadcast + chat), Broadcast (broadcast only), etc. Click Go Live (or the broadcast button) to start streaming.

Step 3: Viewers Watch

From a separate browser tab or another device, open the channel page. Viewers watching via WebRTC get sub-second latency. Viewers on older devices or iOS fall back to HLS automatically. The chat panel is visible alongside the stream for both broadcaster and viewers.

Step 4: End the Broadcast

Click Stop or close the broadcast view to end the session. The recording (if enabled) is saved to the VOD archive automatically.

Broadcasting via HTML5 Videochat (Alternative)

If your channel uses the HTML5 Videochat interface (roomInterface = html5app), WebRTC broadcasting is also available directly from that interface — alongside RTMP support. See Videochat Broadcasting → for details on using OBS or Larix Broadcaster with this interface.

See Also

– Simple Live Streaming Scenario →

– Videochat & Tipping Platform →

– Get a Turnkey Hosted Site →