If desired, we currently provide a single output stream when utilizing our transcoding service. In most cases this is not necessary as recommended settings for typical livestreaming platforms also apply here, but feel free to experiment if you think it could benefit your needs.
Transcoding will output a 1080p (downscaling only using Lanczos) H.264 stream targeting CRF 23 with a constraint of 20 Mbps which is evaluated every 40 Mbit. The input frame rate will be respected, though we recommend either 30 or 60 FPS for compatibility. The audio stream provided is simply copied without transcoding.
We have optimized this output to minimize additional viewer latency and bandwidth requirements, while maintaining an acceptable level of image quality via the “fast” preset and a keyframe interval of 2 seconds. B-frames are also leveraged, up to an allowed maximum of 2 between non-B-frames.