Apply byte-positioned markers as contiguous channel ranges: each marker covers [its first segment, the next marker's first segment - 1]. A marker value of 0 acts as a range terminator (back to unknown/none).
Apply byte-positioned markers as contiguous channel ranges: each marker covers [its first segment, the next marker's first segment - 1]. A marker value of 0 acts as a range terminator (back to unknown/none).