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// Copyright 2025 LiveKit, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::impl_thread_safety;
#[cxx::bridge(namespace = "livekit_ffi")]
pub mod ffi {
unsafe extern "C++" {
include!("livekit/apm.h");
type AudioProcessingModule;
unsafe fn process_stream(
self: Pin<&mut AudioProcessingModule>,
src: *const i16,
src_len: usize,
dst: *mut i16,
dst_len: usize,
sample_rate: i32,
num_channels: i32,
) -> i32;
unsafe fn process_reverse_stream(
self: Pin<&mut AudioProcessingModule>,
src: *const i16,
src_len: usize,
dst: *mut i16,
dst_len: usize,
sample_rate: i32,
num_channels: i32,
) -> i32;
fn set_stream_delay_ms(self: Pin<&mut AudioProcessingModule>, delay: i32) -> i32;
fn create_apm(
echo_canceller_enabled: bool,
gain_controller_enabled: bool,
high_pass_filter_enabled: bool,
noise_suppression_enabled: bool,
) -> UniquePtr<AudioProcessingModule>;
}
}
impl_thread_safety!(ffi::AudioProcessingModule, Send + Sync);