gst-plugins-rs/audio/audiofx/tests/audiornnoise.rs

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// Copyright (C) 2020 Philippe Normand <philn@igalia.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at
// <https://mozilla.org/MPL/2.0/>.
//
// SPDX-License-Identifier: MPL-2.0
use byte_slice_cast::*;
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gstrsaudiofx::plugin_register_static().expect("Failed to register rsaudiofx plugin");
});
}
#[test]
fn test_rnnoise_silence_big_buffers() {
init();
let audio_info = gst_audio::AudioInfo::builder(gst_audio::AUDIO_FORMAT_F32, 48000, 2)
.build()
.unwrap();
test_rnnoise(&audio_info, 4096);
}
#[test]
fn test_rnnoise_silence_small_buffers() {
init();
let audio_info = gst_audio::AudioInfo::builder(gst_audio::AUDIO_FORMAT_F32, 48000, 2)
.build()
.unwrap();
test_rnnoise(&audio_info, 1024);
}
fn test_rnnoise(audio_info: &gst_audio::AudioInfo, buffer_size: usize) {
let filter = gst::ElementFactory::make("audiornnoise", None).unwrap();
let mut h = gst_check::Harness::with_element(&filter, Some("sink"), Some("src"));
let sink_caps = audio_info.to_caps().unwrap();
let src_caps = sink_caps.clone();
h.set_caps(src_caps, sink_caps);
h.play();
let buffer = {
let mut buffer = gst::Buffer::with_size(buffer_size * audio_info.bpf() as usize).unwrap();
{
let format_info = audio_info.format_info();
let buffer_mut = buffer.get_mut().unwrap();
let mut omap = buffer_mut.map_writable().unwrap();
let odata = omap.as_mut_slice_of::<u8>().unwrap();
format_info.fill_silence(odata);
}
buffer
};
let num_buffers = 5;
let mut total_processed = 0;
for _ in 0..num_buffers {
let result = h.push_and_pull(buffer.clone()).unwrap();
let map = result.into_mapped_buffer_readable().unwrap();
let output = map.as_slice().as_slice_of::<f64>().unwrap();
// all samples in the output buffers must value 0
2021-06-04 22:16:05 +00:00
assert!(output.iter().all(|sample| *sample as u16 == 0u16));
total_processed += output.len();
}
h.push_event(gst::event::Eos::new());
let last_buffer = h.pull().unwrap();
let map = last_buffer.into_mapped_buffer_readable().unwrap();
let output = map.as_slice().as_slice_of::<f64>().unwrap();
total_processed += output.len();
// The total amount of samples pushed into the element shall be equal to the
// total amount of samples pulled from it.
assert_eq!(total_processed, num_buffers * buffer_size);
}