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audiornnoise: Add debug output for voice activity to help you choose a threshold

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1010>
This commit is contained in:
Michiel Konstapel 2022-12-12 17:29:55 +01:00 committed by GStreamer Marge Bot
parent e5360ff431
commit 3a8536b45e
1 changed files with 55 additions and 47 deletions
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102
audio/audiofx/src/audiornnoise/imp.rs
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@ -99,51 +99,6 @@ impl State {
fn needs_more_data(&self) -> bool {
self.adapter.available() < (FRAME_SIZE * self.in_info.bpf() as usize)
}
fn process(&mut self, input_plane: &[f32], output_plane: &mut [f32], settings: &Settings) {
let channels = self.in_info.channels() as usize;
let size = FRAME_SIZE * channels;
for (out_frame, in_frame) in output_plane.chunks_mut(size).zip(input_plane.chunks(size)) {
for (index, item) in in_frame.iter().enumerate() {
let channel_index = index % channels;
let channel_denoiser = &mut self.denoisers[channel_index];
let pos = index / channels;
channel_denoiser.frame_chunk[pos] = *item * 32767.0;
}
for i in (in_frame.len() / channels)..(size / channels) {
for c in 0..channels {
let channel_denoiser = &mut self.denoisers[c];
channel_denoiser.frame_chunk[i] = 0.0;
}
}
// FIXME: The first chunks coming out of the denoisers contains some
// fade-in artifacts. We might want to discard those.
let mut vad: f32 = 0.0;
for channel_denoiser in &mut self.denoisers {
vad = f32::max(
vad,
channel_denoiser.denoiser.process_frame(
&mut channel_denoiser.out_chunk[..],
&channel_denoiser.frame_chunk[..],
),
);
}
if vad < settings.vad_threshold {
out_frame.fill(0.0);
} else {
for (index, item) in out_frame.iter_mut().enumerate() {
let channel_index = index % channels;
let channel_denoiser = &self.denoisers[channel_index];
let pos = index / channels;
*item = channel_denoiser.out_chunk[pos] / 32767.0;
}
}
}
}
}
impl AudioRNNoise {
@ -177,7 +132,7 @@ impl AudioRNNoise {
let mut out_map = buffer.map_writable().map_err(|_| gst::FlowError::Error)?;
let out_data = out_map.as_mut_slice_of::<f32>().unwrap();
state.process(in_data, out_data, &settings);
self.process(state, &settings, in_data, out_data);
}
self.obj().src_pad().push(buffer)
@ -208,11 +163,64 @@ impl AudioRNNoise {
let mut out_map = buffer.map_writable().map_err(|_| gst::FlowError::Error)?;
let out_data = out_map.as_mut_slice_of::<f32>().unwrap();
state.process(in_data, out_data, &settings);
self.process(state, &settings, in_data, out_data);
}
Ok(GenerateOutputSuccess::Buffer(buffer))
}
fn process(
&self,
state: &mut State,
settings: &Settings,
input_plane: &[f32],
output_plane: &mut [f32],
) {
let channels = state.in_info.channels() as usize;
let size = FRAME_SIZE * channels;
for (out_frame, in_frame) in output_plane.chunks_mut(size).zip(input_plane.chunks(size)) {
for (index, item) in in_frame.iter().enumerate() {
let channel_index = index % channels;
let channel_denoiser = &mut state.denoisers[channel_index];
let pos = index / channels;
channel_denoiser.frame_chunk[pos] = *item * 32767.0;
}
for i in (in_frame.len() / channels)..(size / channels) {
for c in 0..channels {
let channel_denoiser = &mut state.denoisers[c];
channel_denoiser.frame_chunk[i] = 0.0;
}
}
// FIXME: The first chunks coming out of the denoisers contains some
// fade-in artifacts. We might want to discard those.
let mut vad: f32 = 0.0;
for channel_denoiser in &mut state.denoisers {
vad = f32::max(
vad,
channel_denoiser.denoiser.process_frame(
&mut channel_denoiser.out_chunk[..],
&channel_denoiser.frame_chunk[..],
),
);
}
gst::debug!(CAT, imp: self, "Voice activity: {}", vad);
if vad < settings.vad_threshold {
out_frame.fill(0.0);
} else {
for (index, item) in out_frame.iter_mut().enumerate() {
let channel_index = index % channels;
let channel_denoiser = &state.denoisers[channel_index];
let pos = index / channels;
*item = channel_denoiser.out_chunk[pos] / 32767.0;
}
}
}
}
}
#[glib::object_subclass]