Osprey Video Encoder

Osprey Talon video encoders can be used to publish content to Phenix using

• SRT where Phenix is a caller

• RTMP

• WHIP

Follow Osprey's user manual to connect to your encoder.

Configure your Talon encoder to use your selected output protocol.

Set the Protocol to TS over SRT and select Listener mode. See SRT for additional information.

Once video and audio are configured, start publishing by calling the endpoint from Phenix using either an API or the Portal.

Set the Protocol to RTMP/RTMPS and enter your stream key as detailed in the RTMP documentation.

Once video and audio are configured, start publishing by clicking Actions > Start.

Set the Protocol to WHIP (Real-Time WebRTC) and enter your WHIP endpoint and publishing token as detailed in the WHIP documentation.

Once video and audio are configured, start publishing by clicking Actions > Start.

The settings listed below are for RTMP. Note that some settings may have different names when using SRT or WHIP instead of RTMP. There may be other differences, e.g.,

• Source: HDMI or SDI

• Output Resolution: 1920x1080

• Frame rate: 25 fps or 30fps

• Codec: H264

• Target Bitrate: 5000 kbps

• Encoding Profile: Baseline

• Color Processing: 4:2:0 8-Bit

• Rate Control: Constant (CBR). Note: For some streams, using VBR instead of CBR can result in sharper in video quality and can minimize pulsing. Prior to using VBR in a production stream, make sure there are no spikes beyond 8 Mbps and monitor the inputs to make sure the streams are stable.

• Filler Data: Enabled

• QP Mode: Auto

• Max QP: 36

• Min QP: 24

• GOP Mode: Low Delay P

• Entropy Mode: CABAC

• GOP Size: 25 or 30 frames (same as frame rate)

• Metadata: Off

• Codec: AAC-LC; for WHIP, use Opus instead of AAC-LC.

• Rate Control: Average (ABR)

• Bitrate: 128 kbps

• Sample Rate: 48 kHz