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Merge pull request #17 from Polochon-street/tentative-thread-safing

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Tentative of thread safing stuff
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Polochon-street 2021-06-30 19:03:06 +02:00 committed by GitHub
parent ff500851c0 59b09129f4
commit bd6ff422a7
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 33 additions and 19 deletions
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3
CHANGELOG.md
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@ -1,5 +1,8 @@
# Changelog
## bliss 0.3.2
* Fixed a rare ffmpeg multithreading bug.
## bliss 0.3.1
* Show error message when song storage fails in the Library trait.
* Added a `distance` module containing euclidean and cosine distance.

2
Cargo.lock generated
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@ -75,7 +75,7 @@ checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
[[package]]
name = "bliss-audio"
version = "0.3.1"
version = "0.3.2"
dependencies = [
"bliss-audio-aubio-rs",
"crossbeam",

2
Cargo.toml
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@ -1,6 +1,6 @@
[package]
name = "bliss-audio"
version = "0.3.1"
version = "0.3.2"
authors = ["Polochon-street <polochonstreet@gmx.fr>"]
edition = "2018"
license = "GPL-3.0-only"

45
src/song.rs
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@ -23,7 +23,6 @@ use ::log::warn;
use core::ops::Index;
use crossbeam::thread;
use ffmpeg_next::codec::threading::{Config, Type as ThreadingType};
use ffmpeg_next::software::resampling::context::Context;
use ffmpeg_next::util;
use ffmpeg_next::util::channel_layout::ChannelLayout;
use ffmpeg_next::util::error::Error;
@ -437,23 +436,19 @@ impl Song {
}
};
codec.set_channel_layout(in_channel_layout);
let resample_context = ffmpeg::software::resampling::context::Context::get(
codec.format(),
in_channel_layout,
codec.rate(),
Sample::F32(Type::Packed),
ffmpeg::util::channel_layout::ChannelLayout::MONO,
SAMPLE_RATE,
)
.map_err(|e| {
BlissError::DecodingError(format!(
"while trying to allocate resampling context: {:?}",
e
))
})?;
let (tx, rx) = mpsc::channel();
let child = std_thread::spawn(move || resample_frame(rx, resample_context, sample_array));
let in_codec_format = codec.format();
let in_codec_rate = codec.rate();
let child = std_thread::spawn(move || {
resample_frame(
rx,
in_codec_format,
in_channel_layout,
in_codec_rate,
sample_array,
)
});
for (s, packet) in format.packets() {
if s.index() != stream {
continue;
@ -542,9 +537,25 @@ pub(crate) struct InternalSong {
fn resample_frame(
rx: Receiver<Audio>,
mut resample_context: Context,
in_codec_format: Sample,
in_channel_layout: ChannelLayout,
in_rate: u32,
mut sample_array: Vec<f32>,
) -> BlissResult<Vec<f32>> {
let mut resample_context = ffmpeg::software::resampling::context::Context::get(
in_codec_format,
in_channel_layout,
in_rate,
Sample::F32(Type::Packed),
ffmpeg::util::channel_layout::ChannelLayout::MONO,
SAMPLE_RATE,
)
.map_err(|e| {
BlissError::DecodingError(format!(
"while trying to allocate resampling context: {:?}",
e
))
})?;
let mut resampled = ffmpeg::frame::Audio::empty();
for decoded in rx.iter() {
resampled = ffmpeg::frame::Audio::empty();