Understanding GPU Hardware Codec Parameters
Achieving sub-50ms glass-to-glass latency requires configuring your publishing camera and receiving PC encoder for **Zero Latency (p1/p2)** presets.
Critical Codec Settings for Sub-50ms Latency
- B-Frames: Set to 0. B-frames require future frame lookahead, adding 2 to 4 frames (33ms - 66ms) of buffering delay. Set B-Frames to 0 for instantaneous decoding.
- GOP (Keyframe Interval): Set to 1 Second (60 frames). Short GOP intervals allow rapid stream recovery without waiting for long keyframe updates.
- Bitrate Mode: CBR or Low-Latency VBR. Constant Bitrate (CBR) prevents network packet spikes on 5GHz Wi-Fi links.