Function gap_client_send 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn gap_client_send(
    ch: i32,
    nh: i32,
    mh: i32,
    target: u32,
    media_source_id: u32,
    rtp_timestamp: u64,
    opus_ptr: *const u8,
    opus_len: usize,
    codec: u8,
) -> GbpBuffer

Sends an Opus audio frame via GAP.

codec selects the payload encoding: 0 = CBOR (default), 1 = Protobuf, 2 = FlatBuffers. For audio use FlatBuffers (2) to minimize decode latency.

Safety

opus_ptr MUST be valid for opus_len bytes.