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When using single-bitrate output (i.e., when the multi-bitrate capability is not set), the video quality/resolution is not changed; that is, the same video quality input is the quality that is output, even if the quality or encoding-profile is set.
For example, if FHD video is provided to Phenix via SRTRTMP, and the output quality is set to SD, the output will be FHD.
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