Larix Broadcaster app for iPhone and iPad

Larix Broadcaster allows streaming video and audio live content from mobile device for real-time remote contribution.

~ NEW! Larix Tuner cloud service support, see website
~ SRT streaming in Caller (Push), Listen, Rendezvous mode, libsrt v.1.5.3
~ SRT multipoint listener support
~ RTMP and RTSP streaming with SSL for RTMPS/RTSPS
~ WebRTC support via WHIP signaling
~ Zixi protocol support to deliver live streaming with full set of advanced transmission techniques, with AVC/HEVC codecs, SEI timestamps and Grove support.
~ NDI®|HX2 support: preview stream, Discovery Server, metadata setup, handle zoom from NDI Studio Monitor
~ RIST protocol streaming in Push mode: RIST Main and Simple profiles via librist v.0.2.7
Watch tutorial on connections https://www.youtube.com/watch?v=Dhj0_QbtfTw
~ Multiple simultaneous connections support: add several connections profiles and choose any of them for parallel streaming.
~ Pause the stream: long tap on Start will pause the stream without disconnecting it, video track will contain a black screen, audio track will contain only silence.
~ Stand-by stream mode: when stream is stopped, long-tap to start a stream in pause mode with separate set of overlays.
~ Watch video tutorial on overlays, pause and stand-by: https://www.youtube.com/watch?v=4jOJm0XNxZc
~ Talkback for getting audio return feed via SRT, RTMP, Icecast and SLDP. Read more here: https://softvelum.com/larix/talkback/
~ UltraHD resolution support.
~ Dolby Vision HDR support (Settings / Video / HDR video menu)
~ Front and back cameras are supported with hot flip.
~ Landscape and portrait mode with live rotation.
~ Multi-camera capture with picture-in-picture and side-by-side on XR, XS and later devices.
~ Dual/Triple camera system support, including wide-angle and telephoto camera.
~ Center stage for iPads, enabled as described at https://support.apple.com/en-us/HT212315
~ Autoexposure lock, white balance lock, manual color temperature in Quick settings.
~ Saving to MP4, making screenshots, iCloud support
~ Recording "Compatibility" option in case resulting file has black frames at preview.
~ Record with different parameters like larger resolution
~ Input audio gain control and source selection, Bluetooth audio
~ Audio-only capture support: disable preview, stream from background, no video in output stream. Use Audio menu to enable.
~ Pinch-to-zoom, all iPhone 11 cameras are used

USB cameras are supported on iPadOS 17

- H.264 encoding for all protocols including WebRTC
- HEVC/H.265 encoding for SRT, RTMP, RIST, RTSP
- AAC audio, except for WebRTC
- Opus audio for WebRTC

Insert SEI metadata into SRT, WebRTC, RTMP for NTP sync up, via Advanced menu.

Larix Premium via in-app subscription is required for some of the features https://softvelum.com/larix/premium/

Larix Grove https://softvelum.com/larix/grove/ can be used for easy links distribution via deep links / QR codes.

Overlays support:
~ GPS HTML overlays (Larix Premium)
~ Image layers
~ Text and HTML overlays
~ Date/time support in overlays as defined in Unicode LDML
~ Web widgets
~ Assign layers for all mode: streaming, pause and stand-by
~ Enable layers on-the-fly

Streams to
~ any server like Nimble Streamer, Wowza, Red5, Flussonic etc.
~ vMix, OBS Studio and other desktop software
~ YouTube Live, Twitch, Restream.io, Facebook Live, Dacast and other live services
~ Cloudflare Stream via SRT, WebRTC and RTMP

Watch video tutorial on overlays: https://www.youtube.com/watch?v=4jOJm0XNxZc

Adaptive bitrate (ABR) is available with logarithmic descend, ladder ascend, hybrid approach for SRT and variable FPS. Its disabled by default, check Video menu to use.

Join our public beta testing to get new updates among the first: https://testflight.apple.com/join/mdxzNOxZ
Full reference of docs regarding setup and usage: https://softvelum.com/larix/docs/

Larix Broadcaster uses Apple’s Standard License Agreement (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)

Usually Larix Broadcaster iOS app used & searched for