Function decode_frame_at 

pub fn decode_frame_at(
    flo_data: &[u8],
    frame_index: u32,
) -> Result<Vec<f32>, JsValue>

Decode a single frame by index without decoding the entire file

Arguments

• flo_data - Complete flo file bytes
• frame_index - Zero-based frame index

Returns

Interleaved audio samples for that frame (f32, -1.0 to 1.0)