Merge pull request #660 from roderickvd/hi-res-volume-control

High-resolution volume control and normalisation
This commit is contained in:
Sasha Hilton 2021-04-10 01:26:20 +01:00 committed by GitHub
commit 8fe2e01166
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23 changed files with 1023 additions and 909 deletions

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Cargo.lock generated
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checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
[[package]]
name = "pin-project-lite"
version = "0.2.4"
@ -2223,28 +2016,6 @@ dependencies = [
"protobuf-codegen",
]
[[package]]
name = "publicsuffix"
version = "1.5.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3bbaa49075179162b49acac1c6aa45fb4dafb5f13cf6794276d77bc7fd95757b"
dependencies = [
"error-chain",
"idna 0.2.1",
"lazy_static",
"regex",
"url 2.2.0",
]
[[package]]
name = "qstring"
version = "0.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d464fae65fff2680baf48019211ce37aaec0c78e9264c84a3e484717f965104e"
dependencies = [
"percent-encoding 2.1.0",
]
[[package]]
name = "quick-error"
version = "1.2.3"
@ -2436,32 +2207,11 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "ring"
version = "0.16.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
dependencies = [
"cc",
"libc",
"once_cell",
"spin",
"untrusted",
"web-sys",
"winapi 0.3.9",
]
[[package]]
name = "rle-decode-fast"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cabe4fa914dec5870285fa7f71f602645da47c486e68486d2b4ceb4a343e90ac"
[[package]]
name = "rodio"
version = "0.13.0"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9683532495146e98878d4948fa1a1953f584cd923f2a5f5c26b7a8701b56943"
checksum = "b65c2eda643191f6d1bb12ea323a9db8d9ba95374e9be3780b5a9fb5cfb8520f"
dependencies = [
"cpal",
]
@ -2476,12 +2226,6 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "rustc-demangle"
version = "0.1.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e3bad0ee36814ca07d7968269dd4b7ec89ec2da10c4bb613928d3077083c232"
[[package]]
name = "rustc-hash"
version = "1.1.0"
@ -2497,19 +2241,6 @@ dependencies = [
"semver",
]
[[package]]
name = "rustls"
version = "0.19.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "064fd21ff87c6e87ed4506e68beb42459caa4a0e2eb144932e6776768556980b"
dependencies = [
"base64 0.13.0",
"log 0.4.14",
"ring",
"sct",
"webpki",
]
[[package]]
name = "ryu"
version = "1.0.5"
@ -2543,16 +2274,6 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
[[package]]
name = "sct"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e3042af939fca8c3453b7af0f1c66e533a15a86169e39de2657310ade8f98d3c"
dependencies = [
"ring",
"untrusted",
]
[[package]]
name = "sdl2"
version = "0.34.3"
@ -2567,9 +2288,9 @@ dependencies = [
[[package]]
name = "sdl2-sys"
version = "0.34.3"
version = "0.34.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "28d81feded049b9c14eceb4a4f6d596a98cebbd59abdba949c5552a015466d33"
checksum = "4cb164f53dbcad111de976bbf1f3083d3fcdeda88da9cfa281c70822720ee3da"
dependencies = [
"cfg-if 0.1.10",
"libc",
@ -2596,9 +2317,6 @@ name = "serde"
version = "1.0.123"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "92d5161132722baa40d802cc70b15262b98258453e85e5d1d365c757c73869ae"
dependencies = [
"serde_derive",
]
[[package]]
name = "serde_derive"
@ -2647,12 +2365,6 @@ dependencies = [
"opaque-debug 0.3.0",
]
[[package]]
name = "sha1"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
[[package]]
name = "shannon"
version = "0.2.0"
@ -2727,76 +2439,12 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "spin"
version = "0.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
[[package]]
name = "standback"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2beb4d1860a61f571530b3f855a1b538d0200f7871c63331ecd6f17b1f014f8"
dependencies = [
"version_check",
]
[[package]]
name = "stdweb"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ef5430c8e36b713e13b48a9f709cc21e046723fe44ce34587b73a830203b533e"
[[package]]
name = "stdweb"
version = "0.4.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d022496b16281348b52d0e30ae99e01a73d737b2f45d38fed4edf79f9325a1d5"
dependencies = [
"discard",
"rustc_version",
"stdweb-derive",
"stdweb-internal-macros",
"stdweb-internal-runtime",
"wasm-bindgen",
]
[[package]]
name = "stdweb-derive"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
dependencies = [
"proc-macro2",
"quote",
"serde",
"serde_derive",
"syn",
]
[[package]]
name = "stdweb-internal-macros"
version = "0.2.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
dependencies = [
"base-x",
"proc-macro2",
"quote",
"serde",
"serde_derive",
"serde_json",
"sha1",
"syn",
]
[[package]]
name = "stdweb-internal-runtime"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
[[package]]
name = "strsim"
version = "0.9.3"
@ -2871,17 +2519,6 @@ version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b157868d8ac1f56b64604539990685fa7611d8fa9e5476cf0c02cf34d32917c5"
[[package]]
name = "tar"
version = "0.4.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0313546c01d59e29be4f09687bcb4fb6690cec931cc3607b6aec7a0e417f4cc6"
dependencies = [
"filetime",
"libc",
"xattr",
]
[[package]]
name = "tempfile"
version = "3.2.0"
@ -2935,44 +2572,6 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "time"
version = "0.2.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1195b046942c221454c2539395f85413b33383a067449d78aab2b7b052a142f7"
dependencies = [
"const_fn",
"libc",
"standback",
"stdweb 0.4.20",
"time-macros",
"version_check",
"winapi 0.3.9",
]
[[package]]
name = "time-macros"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "957e9c6e26f12cb6d0dd7fc776bb67a706312e7299aed74c8dd5b17ebb27e2f1"
dependencies = [
"proc-macro-hack",
"time-macros-impl",
]
[[package]]
name = "time-macros-impl"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e5c3be1edfad6027c69f5491cf4cb310d1a71ecd6af742788c6ff8bced86b8fa"
dependencies = [
"proc-macro-hack",
"proc-macro2",
"quote",
"standback",
"syn",
]
[[package]]
name = "tinyvec"
version = "1.1.1"
@ -3318,61 +2917,15 @@ version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
[[package]]
name = "unreachable"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
dependencies = [
"void",
]
[[package]]
name = "untrusted"
version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
[[package]]
name = "ureq"
version = "1.5.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "294b85ef5dbc3670a72e82a89971608a1fcc4ed5c7c5a2895230d31a95f0569b"
dependencies = [
"base64 0.13.0",
"chunked_transfer",
"cookie",
"cookie_store",
"log 0.4.14",
"once_cell",
"qstring",
"rustls",
"url 2.2.0",
"webpki",
"webpki-roots",
]
[[package]]
name = "url"
version = "1.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
dependencies = [
"idna 0.1.5",
"idna",
"matches",
"percent-encoding 1.0.1",
]
[[package]]
name = "url"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5909f2b0817350449ed73e8bcd81c8c3c8d9a7a5d8acba4b27db277f1868976e"
dependencies = [
"form_urlencoded",
"idna 0.2.1",
"matches",
"percent-encoding 2.1.0",
"percent-encoding",
]
[[package]]
@ -3406,12 +2959,6 @@ version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
[[package]]
name = "void"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
[[package]]
name = "vorbis"
version = "0.0.14"
@ -3547,25 +3094,6 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "webpki"
version = "0.21.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b8e38c0608262c46d4a56202ebabdeb094cef7e560ca7a226c6bf055188aa4ea"
dependencies = [
"ring",
"untrusted",
]
[[package]]
name = "webpki-roots"
version = "0.21.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "82015b7e0b8bad8185994674a13a93306bea76cf5a16c5a181382fd3a5ec2376"
dependencies = [
"webpki",
]
[[package]]
name = "winapi"
version = "0.2.8"
@ -3619,15 +3147,6 @@ dependencies = [
"winapi-build",
]
[[package]]
name = "xattr"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "244c3741f4240ef46274860397c7c74e50eb23624996930e484c16679633a54c"
dependencies = [
"libc",
]
[[package]]
name = "zerocopy"
version = "0.3.0"

View file

@ -22,9 +22,10 @@ log = "0.4"
num-bigint = "0.3"
num-traits = "0.2"
tempfile = "3.1"
zerocopy = "0.3"
librespot-tremor = { version = "0.2.0", optional = true }
vorbis = { version ="0.0.14", optional = true }
librespot-tremor = { version = "0.2", optional = true }
vorbis = { version ="0.0", optional = true }
[features]
with-tremor = ["librespot-tremor"]

59
audio/src/convert.rs Normal file
View file

@ -0,0 +1,59 @@
use zerocopy::AsBytes;
#[derive(AsBytes, Copy, Clone, Debug)]
#[allow(non_camel_case_types)]
#[repr(transparent)]
pub struct i24([u8; 3]);
impl i24 {
fn pcm_from_i32(sample: i32) -> Self {
// drop the least significant byte
let [a, b, c, _d] = (sample >> 8).to_le_bytes();
i24([a, b, c])
}
}
// Losslessly represent [-1.0, 1.0] to [$type::MIN, $type::MAX] while maintaining DC linearity.
macro_rules! convert_samples_to {
($type: ident, $samples: expr) => {
convert_samples_to!($type, $samples, 0)
};
($type: ident, $samples: expr, $drop_bits: expr) => {
$samples
.iter()
.map(|sample| {
// Losslessly represent [-1.0, 1.0] to [$type::MIN, $type::MAX]
// while maintaining DC linearity. There is nothing to be gained
// by doing this in f64, as the significand of a f32 is 24 bits,
// just like the maximum bit depth we are converting to.
let int_value = *sample * (std::$type::MAX as f32 + 0.5) - 0.5;
// Casting floats to ints truncates by default, which results
// in larger quantization error than rounding arithmetically.
// Flooring is faster, but again with larger error.
int_value.round() as $type >> $drop_bits
})
.collect()
};
}
pub struct SamplesConverter {}
impl SamplesConverter {
pub fn to_s32(samples: &[f32]) -> Vec<i32> {
convert_samples_to!(i32, samples)
}
pub fn to_s24(samples: &[f32]) -> Vec<i32> {
convert_samples_to!(i32, samples, 8)
}
pub fn to_s24_3(samples: &[f32]) -> Vec<i24> {
Self::to_s32(samples)
.iter()
.map(|sample| i24::pcm_from_i32(*sample))
.collect()
}
pub fn to_s16(samples: &[f32]) -> Vec<i16> {
convert_samples_to!(i16, samples)
}
}

View file

@ -37,8 +37,11 @@ where
use self::lewton::VorbisError::BadAudio;
use self::lewton::VorbisError::OggError;
loop {
match self.0.read_dec_packet_itl() {
Ok(Some(packet)) => return Ok(Some(AudioPacket::Samples(packet))),
match self
.0
.read_dec_packet_generic::<lewton::samples::InterleavedSamples<f32>>()
{
Ok(Some(packet)) => return Ok(Some(AudioPacket::Samples(packet.samples))),
Ok(None) => return Ok(None),
Err(BadAudio(AudioIsHeader)) => (),

View file

@ -13,6 +13,7 @@ extern crate tempfile;
extern crate librespot_core;
mod convert;
mod decrypt;
mod fetch;
@ -24,6 +25,7 @@ mod passthrough_decoder;
mod range_set;
pub use convert::{i24, SamplesConverter};
pub use decrypt::AudioDecrypt;
pub use fetch::{AudioFile, AudioFileOpen, StreamLoaderController};
pub use fetch::{
@ -33,12 +35,12 @@ pub use fetch::{
use std::fmt;
pub enum AudioPacket {
Samples(Vec<i16>),
Samples(Vec<f32>),
OggData(Vec<u8>),
}
impl AudioPacket {
pub fn samples(&self) -> &[i16] {
pub fn samples(&self) -> &[f32] {
match self {
AudioPacket::Samples(s) => s,
AudioPacket::OggData(_) => panic!("can't return OggData on samples"),

View file

@ -39,7 +39,18 @@ where
fn next_packet(&mut self) -> Result<Option<AudioPacket>, AudioError> {
loop {
match self.0.packets().next() {
Some(Ok(packet)) => return Ok(Some(AudioPacket::Samples(packet.data))),
Some(Ok(packet)) => {
// Losslessly represent [-32768, 32767] to [-1.0, 1.0] while maintaining DC linearity.
return Ok(Some(AudioPacket::Samples(
packet
.data
.iter()
.map(|sample| {
((*sample as f64 + 0.5) / (std::i16::MAX as f64 + 0.5)) as f32
})
.collect(),
)));
}
None => return Ok(None),
Some(Err(vorbis::VorbisError::Hole)) => (),

View file

@ -5,7 +5,7 @@ use librespot::core::authentication::Credentials;
use librespot::core::config::SessionConfig;
use librespot::core::session::Session;
use librespot::core::spotify_id::SpotifyId;
use librespot::playback::config::PlayerConfig;
use librespot::playback::config::{AudioFormat, PlayerConfig};
use librespot::playback::audio_backend;
use librespot::playback::player::Player;
@ -16,6 +16,7 @@ fn main() {
let session_config = SessionConfig::default();
let player_config = PlayerConfig::default();
let audio_format = AudioFormat::default();
let args: Vec<_> = env::args().collect();
if args.len() != 4 {
@ -35,7 +36,7 @@ fn main() {
.unwrap();
let (mut player, _) = Player::new(player_config, session.clone(), None, move || {
(backend)(None)
(backend)(None, audio_format)
});
player.load(track, true, 0);

View file

@ -23,19 +23,19 @@ log = "0.4"
byteorder = "1.3"
shell-words = "1.0.0"
alsa = { version = "0.4", optional = true }
alsa = { version = "0.5", optional = true }
portaudio-rs = { version = "0.3", optional = true }
libpulse-binding = { version = "2.13", optional = true, default-features = false }
libpulse-simple-binding = { version = "2.13", optional = true, default-features = false }
libpulse-binding = { version = "2", optional = true, default-features = false }
libpulse-simple-binding = { version = "2", optional = true, default-features = false }
jack = { version = "0.6", optional = true }
libc = { version = "0.2", optional = true }
rodio = { version = "0.13", optional = true, default-features = false }
cpal = { version = "0.13", optional = true }
sdl2 = { version = "0.34", optional = true }
sdl2 = { version = "0.34.3", optional = true }
gstreamer = { version = "0.16", optional = true }
gstreamer-app = { version = "0.16", optional = true }
glib = { version = "0.10", optional = true }
zerocopy = { version = "0.3", optional = true }
zerocopy = { version = "0.3" }
[features]
alsa-backend = ["alsa"]
@ -45,4 +45,4 @@ jackaudio-backend = ["jack"]
rodiojack-backend = ["rodio", "cpal/jack"]
rodio-backend = ["rodio", "cpal"]
sdl-backend = ["sdl2"]
gstreamer-backend = ["gstreamer", "gstreamer-app", "glib", "zerocopy"]
gstreamer-backend = ["gstreamer", "gstreamer-app", "glib"]

View file

@ -1,5 +1,7 @@
use super::{Open, Sink};
use super::{Open, Sink, SinkAsBytes};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLES_PER_SECOND, SAMPLE_RATE};
use alsa::device_name::HintIter;
use alsa::pcm::{Access, Format, Frames, HwParams, PCM};
use alsa::{Direction, Error, ValueOr};
@ -8,13 +10,14 @@ use std::ffi::CString;
use std::io;
use std::process::exit;
const PREFERED_PERIOD_SIZE: Frames = 5512; // Period of roughly 125ms
const BUFFERED_LATENCY: f32 = 0.125; // seconds
const BUFFERED_PERIODS: Frames = 4;
pub struct AlsaSink {
pcm: Option<PCM>,
format: AudioFormat,
device: String,
buffer: Vec<i16>,
buffer: Vec<u8>,
}
fn list_outputs() {
@ -34,23 +37,27 @@ fn list_outputs() {
}
}
fn open_device(dev_name: &str) -> Result<(PCM, Frames), Box<Error>> {
fn open_device(dev_name: &str, format: AudioFormat) -> Result<(PCM, Frames), Box<Error>> {
let pcm = PCM::new(dev_name, Direction::Playback, false)?;
let mut period_size = PREFERED_PERIOD_SIZE;
let alsa_format = match format {
AudioFormat::F32 => Format::float(),
AudioFormat::S32 => Format::s32(),
AudioFormat::S24 => Format::s24(),
AudioFormat::S24_3 => Format::S243LE,
AudioFormat::S16 => Format::s16(),
};
// http://www.linuxjournal.com/article/6735?page=0,1#N0x19ab2890.0x19ba78d8
// latency = period_size * periods / (rate * bytes_per_frame)
// For 16 Bit stereo data, one frame has a length of four bytes.
// 500ms = buffer_size / (44100 * 4)
// buffer_size_bytes = 0.5 * 44100 / 4
// buffer_size_frames = 0.5 * 44100 = 22050
// For stereo samples encoded as 32-bit float, one frame has a length of eight bytes.
let mut period_size = ((SAMPLES_PER_SECOND * format.size() as u32) as f32
* (BUFFERED_LATENCY / BUFFERED_PERIODS as f32)) as Frames;
{
// Set hardware parameters: 44100 Hz / Stereo / 16 bit
let hwp = HwParams::any(&pcm)?;
hwp.set_access(Access::RWInterleaved)?;
hwp.set_format(Format::s16())?;
hwp.set_rate(44100, ValueOr::Nearest)?;
hwp.set_channels(2)?;
hwp.set_format(alsa_format)?;
hwp.set_rate(SAMPLE_RATE, ValueOr::Nearest)?;
hwp.set_channels(NUM_CHANNELS as u32)?;
period_size = hwp.set_period_size_near(period_size, ValueOr::Greater)?;
hwp.set_buffer_size_near(period_size * BUFFERED_PERIODS)?;
pcm.hw_params(&hwp)?;
@ -64,12 +71,12 @@ fn open_device(dev_name: &str) -> Result<(PCM, Frames), Box<Error>> {
}
impl Open for AlsaSink {
fn open(device: Option<String>) -> AlsaSink {
info!("Using alsa sink");
fn open(device: Option<String>, format: AudioFormat) -> Self {
info!("Using Alsa sink with format: {:?}", format);
let name = match device.as_ref().map(AsRef::as_ref) {
Some("?") => {
println!("Listing available alsa outputs");
println!("Listing available Alsa outputs:");
list_outputs();
exit(0)
}
@ -78,8 +85,9 @@ impl Open for AlsaSink {
}
.to_string();
AlsaSink {
Self {
pcm: None,
format: format,
device: name,
buffer: vec![],
}
@ -89,12 +97,14 @@ impl Open for AlsaSink {
impl Sink for AlsaSink {
fn start(&mut self) -> io::Result<()> {
if self.pcm.is_none() {
let pcm = open_device(&self.device);
let pcm = open_device(&self.device, self.format);
match pcm {
Ok((p, period_size)) => {
self.pcm = Some(p);
// Create a buffer for all samples for a full period
self.buffer = Vec::with_capacity((period_size * 2) as usize);
self.buffer = Vec::with_capacity(
period_size as usize * BUFFERED_PERIODS as usize * self.format.size(),
);
}
Err(e) => {
error!("Alsa error PCM open {}", e);
@ -111,23 +121,22 @@ impl Sink for AlsaSink {
fn stop(&mut self) -> io::Result<()> {
{
let pcm = self.pcm.as_mut().unwrap();
// Write any leftover data in the period buffer
// before draining the actual buffer
let io = pcm.io_i16().unwrap();
match io.writei(&self.buffer[..]) {
Ok(_) => (),
Err(err) => pcm.try_recover(err, false).unwrap(),
}
self.write_bytes(&[]).expect("could not flush buffer");
let pcm = self.pcm.as_mut().unwrap();
pcm.drain().unwrap();
}
self.pcm = None;
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
sink_as_bytes!();
}
impl SinkAsBytes for AlsaSink {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()> {
let mut processed_data = 0;
let data = packet.samples();
while processed_data < data.len() {
let data_to_buffer = min(
self.buffer.capacity() - self.buffer.len(),
@ -137,12 +146,7 @@ impl Sink for AlsaSink {
.extend_from_slice(&data[processed_data..processed_data + data_to_buffer]);
processed_data += data_to_buffer;
if self.buffer.len() == self.buffer.capacity() {
let pcm = self.pcm.as_mut().unwrap();
let io = pcm.io_i16().unwrap();
match io.writei(&self.buffer) {
Ok(_) => (),
Err(err) => pcm.try_recover(err, false).unwrap(),
}
self.write_buf().expect("could not append to buffer");
self.buffer.clear();
}
}
@ -150,3 +154,16 @@ impl Sink for AlsaSink {
Ok(())
}
}
impl AlsaSink {
fn write_buf(&mut self) -> io::Result<()> {
let pcm = self.pcm.as_mut().unwrap();
let io = pcm.io_bytes();
match io.writei(&self.buffer) {
Ok(_) => (),
Err(err) => pcm.try_recover(err, false).unwrap(),
};
Ok(())
}
}

View file

@ -1,21 +1,38 @@
use super::{Open, Sink};
use super::{Open, Sink, SinkAsBytes};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLE_RATE};
use gst::prelude::*;
use gst::*;
use std::sync::mpsc::{sync_channel, SyncSender};
use std::{io, thread};
use zerocopy::*;
use zerocopy::AsBytes;
#[allow(dead_code)]
pub struct GstreamerSink {
tx: SyncSender<Vec<u8>>,
pipeline: gst::Pipeline,
format: AudioFormat,
}
impl Open for GstreamerSink {
fn open(device: Option<String>) -> GstreamerSink {
gst::init().expect("Failed to init gstreamer!");
let pipeline_str_preamble = r#"appsrc caps="audio/x-raw,format=S16LE,layout=interleaved,channels=2,rate=44100" block=true max-bytes=4096 name=appsrc0 "#;
fn open(device: Option<String>, format: AudioFormat) -> Self {
info!("Using GStreamer sink with format: {:?}", format);
gst::init().expect("failed to init GStreamer!");
// GStreamer calls S24 and S24_3 different from the rest of the world
let gst_format = match format {
AudioFormat::S24 => "S24_32".to_string(),
AudioFormat::S24_3 => "S24".to_string(),
_ => format!("{:?}", format),
};
let sample_size = format.size();
let gst_bytes = 2048 * sample_size;
let pipeline_str_preamble = format!(
"appsrc caps=\"audio/x-raw,format={}LE,layout=interleaved,channels={},rate={}\" block=true max-bytes={} name=appsrc0 ",
gst_format, NUM_CHANNELS, SAMPLE_RATE, gst_bytes
);
let pipeline_str_rest = r#" ! audioconvert ! autoaudiosink"#;
let pipeline_str: String = match device {
Some(x) => format!("{}{}", pipeline_str_preamble, x),
@ -27,27 +44,27 @@ impl Open for GstreamerSink {
let pipelinee = gst::parse_launch(&*pipeline_str).expect("Couldn't launch pipeline; likely a GStreamer issue or an error in the pipeline string you specified in the 'device' argument to librespot.");
let pipeline = pipelinee
.dynamic_cast::<gst::Pipeline>()
.expect("Couldn't cast pipeline element at runtime!");
let bus = pipeline.get_bus().expect("Couldn't get bus from pipeline");
.expect("couldn't cast pipeline element at runtime!");
let bus = pipeline.get_bus().expect("couldn't get bus from pipeline");
let mainloop = glib::MainLoop::new(None, false);
let appsrce: gst::Element = pipeline
.get_by_name("appsrc0")
.expect("Couldn't get appsrc from pipeline");
.expect("couldn't get appsrc from pipeline");
let appsrc: gst_app::AppSrc = appsrce
.dynamic_cast::<gst_app::AppSrc>()
.expect("Couldn't cast AppSrc element at runtime!");
.expect("couldn't cast AppSrc element at runtime!");
let bufferpool = gst::BufferPool::new();
let appsrc_caps = appsrc.get_caps().expect("Couldn't get appsrc caps");
let appsrc_caps = appsrc.get_caps().expect("couldn't get appsrc caps");
let mut conf = bufferpool.get_config();
conf.set_params(Some(&appsrc_caps), 8192, 0, 0);
conf.set_params(Some(&appsrc_caps), 4096 * sample_size as u32, 0, 0);
bufferpool
.set_config(conf)
.expect("Couldn't configure the buffer pool");
.expect("couldn't configure the buffer pool");
bufferpool
.set_active(true)
.expect("Couldn't activate buffer pool");
.expect("couldn't activate buffer pool");
let (tx, rx) = sync_channel::<Vec<u8>>(128);
let (tx, rx) = sync_channel::<Vec<u8>>(64 * sample_size);
thread::spawn(move || {
for data in rx {
let buffer = bufferpool.acquire_buffer(None);
@ -57,7 +74,7 @@ impl Open for GstreamerSink {
mutbuf.set_size(data.len());
mutbuf
.copy_from_slice(0, data.as_bytes())
.expect("Failed to copy from slice");
.expect("failed to copy from slice");
let _eat = appsrc.push_buffer(okbuffer);
}
}
@ -83,33 +100,32 @@ impl Open for GstreamerSink {
glib::Continue(true)
})
.expect("Failed to add bus watch");
.expect("failed to add bus watch");
thread_mainloop.run();
});
pipeline
.set_state(gst::State::Playing)
.expect("Unable to set the pipeline to the `Playing` state");
.expect("unable to set the pipeline to the `Playing` state");
GstreamerSink {
Self {
tx: tx,
pipeline: pipeline,
format: format,
}
}
}
impl Sink for GstreamerSink {
fn start(&mut self) -> io::Result<()> {
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
start_stop_noop!();
sink_as_bytes!();
}
impl SinkAsBytes for GstreamerSink {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()> {
// Copy expensively (in to_vec()) to avoid thread synchronization
let deighta: &[u8] = packet.samples().as_bytes();
self.tx
.send(deighta.to_vec())
.send(data.to_vec())
.expect("tx send failed in write function");
Ok(())
}

View file

@ -1,5 +1,7 @@
use super::{Open, Sink};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use crate::player::NUM_CHANNELS;
use jack::{
AsyncClient, AudioOut, Client, ClientOptions, Control, Port, ProcessHandler, ProcessScope,
};
@ -7,20 +9,18 @@ use std::io;
use std::sync::mpsc::{sync_channel, Receiver, SyncSender};
pub struct JackSink {
send: SyncSender<i16>,
send: SyncSender<f32>,
// We have to keep hold of this object, or the Sink can't play...
#[allow(dead_code)]
active_client: AsyncClient<(), JackData>,
}
pub struct JackData {
rec: Receiver<i16>,
rec: Receiver<f32>,
port_l: Port<AudioOut>,
port_r: Port<AudioOut>,
}
fn pcm_to_f32(sample: i16) -> f32 {
sample as f32 / 32768.0
}
impl ProcessHandler for JackData {
fn process(&mut self, _: &Client, ps: &ProcessScope) -> Control {
// get output port buffers
@ -33,16 +33,19 @@ impl ProcessHandler for JackData {
let buf_size = buf_r.len();
for i in 0..buf_size {
buf_r[i] = pcm_to_f32(queue_iter.next().unwrap_or(0));
buf_l[i] = pcm_to_f32(queue_iter.next().unwrap_or(0));
buf_r[i] = queue_iter.next().unwrap_or(0.0);
buf_l[i] = queue_iter.next().unwrap_or(0.0);
}
Control::Continue
}
}
impl Open for JackSink {
fn open(client_name: Option<String>) -> JackSink {
info!("Using jack sink!");
fn open(client_name: Option<String>, format: AudioFormat) -> Self {
if format != AudioFormat::F32 {
warn!("JACK currently does not support {:?} output", format);
}
info!("Using JACK sink with format {:?}", AudioFormat::F32);
let client_name = client_name.unwrap_or("librespot".to_string());
let (client, _status) =
@ -50,7 +53,7 @@ impl Open for JackSink {
let ch_r = client.register_port("out_0", AudioOut::default()).unwrap();
let ch_l = client.register_port("out_1", AudioOut::default()).unwrap();
// buffer for samples from librespot (~10ms)
let (tx, rx) = sync_channel(2 * 1024 * 4);
let (tx, rx) = sync_channel::<f32>(NUM_CHANNELS as usize * 1024 * AudioFormat::F32.size());
let jack_data = JackData {
rec: rx,
port_l: ch_l,
@ -58,7 +61,7 @@ impl Open for JackSink {
};
let active_client = AsyncClient::new(client, (), jack_data).unwrap();
JackSink {
Self {
send: tx,
active_client: active_client,
}
@ -66,19 +69,13 @@ impl Open for JackSink {
}
impl Sink for JackSink {
fn start(&mut self) -> io::Result<()> {
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
Ok(())
}
start_stop_noop!();
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
for s in packet.samples().iter() {
let res = self.send.send(*s);
if res.is_err() {
error!("jackaudio: cannot write to channel");
error!("cannot write to channel");
}
}
Ok(())

View file

@ -1,8 +1,9 @@
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use std::io;
pub trait Open {
fn open(_: Option<String>) -> Self;
fn open(_: Option<String>, format: AudioFormat) -> Self;
}
pub trait Sink {
@ -11,8 +12,55 @@ pub trait Sink {
fn write(&mut self, packet: &AudioPacket) -> io::Result<()>;
}
fn mk_sink<S: Sink + Open + 'static>(device: Option<String>) -> Box<dyn Sink> {
Box::new(S::open(device))
pub trait SinkAsBytes {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()>;
}
fn mk_sink<S: Sink + Open + 'static>(device: Option<String>, format: AudioFormat) -> Box<dyn Sink> {
Box::new(S::open(device, format))
}
// reuse code for various backends
macro_rules! sink_as_bytes {
() => {
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
use crate::audio::{i24, SamplesConverter};
use zerocopy::AsBytes;
match packet {
AudioPacket::Samples(samples) => match self.format {
AudioFormat::F32 => self.write_bytes(samples.as_bytes()),
AudioFormat::S32 => {
let samples_s32: &[i32] = &SamplesConverter::to_s32(samples);
self.write_bytes(samples_s32.as_bytes())
}
AudioFormat::S24 => {
let samples_s24: &[i32] = &SamplesConverter::to_s24(samples);
self.write_bytes(samples_s24.as_bytes())
}
AudioFormat::S24_3 => {
let samples_s24_3: &[i24] = &SamplesConverter::to_s24_3(samples);
self.write_bytes(samples_s24_3.as_bytes())
}
AudioFormat::S16 => {
let samples_s16: &[i16] = &SamplesConverter::to_s16(samples);
self.write_bytes(samples_s16.as_bytes())
}
},
AudioPacket::OggData(samples) => self.write_bytes(samples),
}
}
};
}
macro_rules! start_stop_noop {
() => {
fn start(&mut self) -> io::Result<()> {
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
Ok(())
}
};
}
#[cfg(feature = "alsa-backend")]
@ -68,7 +116,10 @@ use self::pipe::StdoutSink;
mod subprocess;
use self::subprocess::SubprocessSink;
pub const BACKENDS: &'static [(&'static str, fn(Option<String>) -> Box<dyn Sink>)] = &[
pub const BACKENDS: &'static [(
&'static str,
fn(Option<String>, AudioFormat) -> Box<dyn Sink>,
)] = &[
#[cfg(feature = "alsa-backend")]
("alsa", mk_sink::<AlsaSink>),
#[cfg(feature = "portaudio-backend")]
@ -92,7 +143,7 @@ pub const BACKENDS: &'static [(&'static str, fn(Option<String>) -> Box<dyn Sink>
("subprocess", mk_sink::<SubprocessSink>),
];
pub fn find(name: Option<String>) -> Option<fn(Option<String>) -> Box<dyn Sink>> {
pub fn find(name: Option<String>) -> Option<fn(Option<String>, AudioFormat) -> Box<dyn Sink>> {
if let Some(name) = name {
BACKENDS
.iter()

View file

@ -1,46 +1,39 @@
use super::{Open, Sink};
use super::{Open, Sink, SinkAsBytes};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use std::fs::OpenOptions;
use std::io::{self, Write};
use std::mem;
use std::slice;
pub struct StdoutSink(Box<dyn Write>);
pub struct StdoutSink {
output: Box<dyn Write>,
format: AudioFormat,
}
impl Open for StdoutSink {
fn open(path: Option<String>) -> StdoutSink {
if let Some(path) = path {
let file = OpenOptions::new().write(true).open(path).unwrap();
StdoutSink(Box::new(file))
} else {
StdoutSink(Box::new(io::stdout()))
fn open(path: Option<String>, format: AudioFormat) -> Self {
info!("Using pipe sink with format: {:?}", format);
let output: Box<dyn Write> = match path {
Some(path) => Box::new(OpenOptions::new().write(true).open(path).unwrap()),
_ => Box::new(io::stdout()),
};
Self {
output: output,
format: format,
}
}
}
impl Sink for StdoutSink {
fn start(&mut self) -> io::Result<()> {
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
let data: &[u8] = match packet {
AudioPacket::Samples(data) => unsafe {
slice::from_raw_parts(
data.as_ptr() as *const u8,
data.len() * mem::size_of::<i16>(),
)
},
AudioPacket::OggData(data) => data,
};
self.0.write_all(data)?;
self.0.flush()?;
start_stop_noop!();
sink_as_bytes!();
}
impl SinkAsBytes for StdoutSink {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()> {
self.output.write_all(data)?;
self.output.flush()?;
Ok(())
}
}

View file

@ -1,5 +1,7 @@
use super::{Open, Sink};
use crate::audio::AudioPacket;
use crate::audio::{AudioPacket, SamplesConverter};
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLE_RATE};
use portaudio_rs;
use portaudio_rs::device::{get_default_output_index, DeviceIndex, DeviceInfo};
use portaudio_rs::stream::*;
@ -7,10 +9,20 @@ use std::io;
use std::process::exit;
use std::time::Duration;
pub struct PortAudioSink<'a>(
Option<portaudio_rs::stream::Stream<'a, i16, i16>>,
StreamParameters<i16>,
);
pub enum PortAudioSink<'a> {
F32(
Option<portaudio_rs::stream::Stream<'a, f32, f32>>,
StreamParameters<f32>,
),
S32(
Option<portaudio_rs::stream::Stream<'a, i32, i32>>,
StreamParameters<i32>,
),
S16(
Option<portaudio_rs::stream::Stream<'a, i16, i16>>,
StreamParameters<i16>,
),
}
fn output_devices() -> Box<dyn Iterator<Item = (DeviceIndex, DeviceInfo)>> {
let count = portaudio_rs::device::get_count().unwrap();
@ -40,8 +52,11 @@ fn find_output(device: &str) -> Option<DeviceIndex> {
}
impl<'a> Open for PortAudioSink<'a> {
fn open(device: Option<String>) -> PortAudioSink<'a> {
debug!("Using PortAudio sink");
fn open(device: Option<String>, format: AudioFormat) -> PortAudioSink<'a> {
info!("Using PortAudio sink with format: {:?}", format);
warn!("This backend is known to panic on several platforms.");
warn!("Consider using some other backend, or better yet, contributing a fix.");
portaudio_rs::initialize().unwrap();
@ -53,7 +68,7 @@ impl<'a> Open for PortAudioSink<'a> {
Some(device) => find_output(device),
None => get_default_output_index(),
}
.expect("Could not find device");
.expect("could not find device");
let info = portaudio_rs::device::get_info(device_idx);
let latency = match info {
@ -61,46 +76,99 @@ impl<'a> Open for PortAudioSink<'a> {
None => Duration::new(0, 0),
};
let params = StreamParameters {
device: device_idx,
channel_count: 2,
suggested_latency: latency,
data: 0i16,
};
PortAudioSink(None, params)
macro_rules! open_sink {
($sink: expr, $type: ty) => {{
let params = StreamParameters {
device: device_idx,
channel_count: NUM_CHANNELS as u32,
suggested_latency: latency,
data: 0.0 as $type,
};
$sink(None, params)
}};
}
match format {
AudioFormat::F32 => open_sink!(Self::F32, f32),
AudioFormat::S32 => open_sink!(Self::S32, i32),
AudioFormat::S16 => open_sink!(Self::S16, i16),
_ => {
unimplemented!("PortAudio currently does not support {:?} output", format)
}
}
}
}
impl<'a> Sink for PortAudioSink<'a> {
fn start(&mut self) -> io::Result<()> {
if self.0.is_none() {
self.0 = Some(
Stream::open(
None,
Some(self.1),
44100.0,
FRAMES_PER_BUFFER_UNSPECIFIED,
StreamFlags::empty(),
None,
)
.unwrap(),
);
macro_rules! start_sink {
(ref mut $stream: ident, ref $parameters: ident) => {{
if $stream.is_none() {
*$stream = Some(
Stream::open(
None,
Some(*$parameters),
SAMPLE_RATE as f64,
FRAMES_PER_BUFFER_UNSPECIFIED,
StreamFlags::empty(),
None,
)
.unwrap(),
);
}
$stream.as_mut().unwrap().start().unwrap()
}};
}
self.0.as_mut().unwrap().start().unwrap();
match self {
Self::F32(stream, parameters) => start_sink!(ref mut stream, ref parameters),
Self::S32(stream, parameters) => start_sink!(ref mut stream, ref parameters),
Self::S16(stream, parameters) => start_sink!(ref mut stream, ref parameters),
};
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
self.0.as_mut().unwrap().stop().unwrap();
self.0 = None;
macro_rules! stop_sink {
(ref mut $stream: ident) => {{
$stream.as_mut().unwrap().stop().unwrap();
*$stream = None;
}};
}
match self {
Self::F32(stream, _parameters) => stop_sink!(ref mut stream),
Self::S32(stream, _parameters) => stop_sink!(ref mut stream),
Self::S16(stream, _parameters) => stop_sink!(ref mut stream),
};
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
match self.0.as_mut().unwrap().write(packet.samples()) {
macro_rules! write_sink {
(ref mut $stream: expr, $samples: expr) => {
$stream.as_mut().unwrap().write($samples)
};
}
let samples = packet.samples();
let result = match self {
Self::F32(stream, _parameters) => {
write_sink!(ref mut stream, samples)
}
Self::S32(stream, _parameters) => {
let samples_s32: &[i32] = &SamplesConverter::to_s32(samples);
write_sink!(ref mut stream, samples_s32)
}
Self::S16(stream, _parameters) => {
let samples_s16: &[i16] = &SamplesConverter::to_s16(samples);
write_sink!(ref mut stream, samples_s16)
}
};
match result {
Ok(_) => (),
Err(portaudio_rs::PaError::OutputUnderflowed) => error!("PortAudio write underflow"),
Err(e) => panic!("PA Error {}", e),
Err(e) => panic!("PortAudio error {}", e),
};
Ok(())

View file

@ -1,5 +1,7 @@
use super::{Open, Sink};
use super::{Open, Sink, SinkAsBytes};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLE_RATE};
use libpulse_binding::{self as pulse, stream::Direction};
use libpulse_simple_binding::Simple;
use std::io;
@ -11,23 +13,34 @@ pub struct PulseAudioSink {
s: Option<Simple>,
ss: pulse::sample::Spec,
device: Option<String>,
format: AudioFormat,
}
impl Open for PulseAudioSink {
fn open(device: Option<String>) -> PulseAudioSink {
debug!("Using PulseAudio sink");
fn open(device: Option<String>, format: AudioFormat) -> Self {
info!("Using PulseAudio sink with format: {:?}", format);
// PulseAudio calls S24 and S24_3 different from the rest of the world
let pulse_format = match format {
AudioFormat::F32 => pulse::sample::Format::F32le,
AudioFormat::S32 => pulse::sample::Format::S32le,
AudioFormat::S24 => pulse::sample::Format::S24_32le,
AudioFormat::S24_3 => pulse::sample::Format::S24le,
AudioFormat::S16 => pulse::sample::Format::S16le,
};
let ss = pulse::sample::Spec {
format: pulse::sample::Format::S16le,
channels: 2, // stereo
rate: 44100,
format: pulse_format,
channels: NUM_CHANNELS,
rate: SAMPLE_RATE,
};
debug_assert!(ss.is_valid());
PulseAudioSink {
Self {
s: None,
ss: ss,
device: device,
format: format,
}
}
}
@ -66,19 +79,13 @@ impl Sink for PulseAudioSink {
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
if let Some(s) = &self.s {
// SAFETY: An i16 consists of two bytes, so that the given slice can be interpreted
// as a byte array of double length. Each byte pointer is validly aligned, and so
// is the newly created slice.
let d: &[u8] = unsafe {
std::slice::from_raw_parts(
packet.samples().as_ptr() as *const u8,
packet.samples().len() * 2,
)
};
sink_as_bytes!();
}
match s.write(d) {
impl SinkAsBytes for PulseAudioSink {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()> {
if let Some(s) = &self.s {
match s.write(data) {
Ok(_) => Ok(()),
Err(e) => Err(io::Error::new(
io::ErrorKind::BrokenPipe,
@ -88,7 +95,7 @@ impl Sink for PulseAudioSink {
} else {
Err(io::Error::new(
io::ErrorKind::NotConnected,
"Not connected to pulseaudio",
"Not connected to PulseAudio",
))
}
}

View file

@ -1,34 +1,96 @@
use super::{Open, Sink};
extern crate cpal;
extern crate rodio;
use crate::audio::AudioPacket;
use crate::audio::{AudioPacket, SamplesConverter};
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLE_RATE};
use cpal::traits::{DeviceTrait, HostTrait};
use std::process::exit;
use std::{io, thread, time};
pub struct RodioSink {
rodio_sink: rodio::Sink,
// We have to keep hold of this object, or the Sink can't play...
#[allow(dead_code)]
stream: rodio::OutputStream,
// most code is shared between RodioSink and JackRodioSink
macro_rules! rodio_sink {
($name: ident) => {
pub struct $name {
rodio_sink: rodio::Sink,
// We have to keep hold of this object, or the Sink can't play...
#[allow(dead_code)]
stream: rodio::OutputStream,
format: AudioFormat,
}
impl Sink for $name {
start_stop_noop!();
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
let samples = packet.samples();
match self.format {
AudioFormat::F32 => {
let source = rodio::buffer::SamplesBuffer::new(NUM_CHANNELS as u16, SAMPLE_RATE, samples);
self.rodio_sink.append(source);
},
AudioFormat::S16 => {
let samples_s16: &[i16] = &SamplesConverter::to_s16(samples);
let source = rodio::buffer::SamplesBuffer::new(NUM_CHANNELS as u16, SAMPLE_RATE, samples_s16);
self.rodio_sink.append(source);
},
_ => unreachable!(),
};
// Chunk sizes seem to be about 256 to 3000 ish items long.
// Assuming they're on average 1628 then a half second buffer is:
// 44100 elements --> about 27 chunks
while self.rodio_sink.len() > 26 {
// sleep and wait for rodio to drain a bit
thread::sleep(time::Duration::from_millis(10));
}
Ok(())
}
}
impl $name {
fn open_sink(host: &cpal::Host, device: Option<String>, format: AudioFormat) -> $name {
match format {
AudioFormat::F32 => {
#[cfg(target_os = "linux")]
{
warn!("Rodio output to Alsa is known to cause garbled sound, consider using `--backend alsa`");
}
},
AudioFormat::S16 => {},
_ => unimplemented!("Rodio currently only supports F32 and S16 formats"),
}
let rodio_device = match_device(&host, device);
debug!("Using cpal device");
let (stream, stream_handle) = rodio::OutputStream::try_from_device(&rodio_device)
.expect("couldn't open output stream.");
debug!("Using Rodio stream");
let sink = rodio::Sink::try_new(&stream_handle).expect("couldn't create output sink.");
debug!("Using Rodio sink");
Self {
rodio_sink: sink,
stream: stream,
format: format,
}
}
}
};
}
rodio_sink!(RodioSink);
#[cfg(all(
feature = "rodiojack-backend",
any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd")
))]
pub struct JackRodioSink {
jackrodio_sink: rodio::Sink,
// We have to keep hold of this object, or the Sink can't play...
#[allow(dead_code)]
stream: rodio::OutputStream,
}
rodio_sink!(JackRodioSink);
fn list_formats(ref device: &rodio::Device) {
let default_fmt = match device.default_output_config() {
Ok(fmt) => cpal::SupportedStreamConfig::from(fmt),
Err(e) => {
warn!("Error getting default rodio::Sink config: {}", e);
warn!("Error getting default Rodio output config: {}", e);
return;
}
};
@ -38,13 +100,13 @@ fn list_formats(ref device: &rodio::Device) {
let mut output_configs = match device.supported_output_configs() {
Ok(f) => f.peekable(),
Err(e) => {
warn!("Error getting supported rodio::Sink configs: {}", e);
warn!("Error getting supported Rodio output configs: {}", e);
return;
}
};
if output_configs.peek().is_some() {
debug!(" Available configs:");
debug!(" Available output configs:");
for format in output_configs {
debug!(" {:?}", format);
}
@ -54,13 +116,13 @@ fn list_formats(ref device: &rodio::Device) {
fn list_outputs(ref host: &cpal::Host) {
let default_device = get_default_device(host);
let default_device_name = default_device.name().expect("cannot get output name");
println!("Default Audio Device:\n {}", default_device_name);
println!("Default audio device:\n {}", default_device_name);
list_formats(&default_device);
println!("Other Available Audio Devices:");
println!("Other available audio devices:");
let found_devices = host.output_devices().expect(&format!(
"Cannot get list of output devices of Host: {:?}",
"Cannot get list of output devices of host: {:?}",
host.id()
));
for device in found_devices {
@ -86,7 +148,7 @@ fn match_device(ref host: &cpal::Host, device: Option<String>) -> rodio::Device
}
let found_devices = host.output_devices().expect(&format!(
"Cannot get list of output devices of Host: {:?}",
"cannot get list of output devices of host: {:?}",
host.id()
));
for d in found_devices {
@ -102,22 +164,14 @@ fn match_device(ref host: &cpal::Host, device: Option<String>) -> rodio::Device
}
impl Open for RodioSink {
fn open(device: Option<String>) -> RodioSink {
fn open(device: Option<String>, format: AudioFormat) -> RodioSink {
let host = cpal::default_host();
debug!("Using rodio sink with cpal host: {:?}", host.id());
let rodio_device = match_device(&host, device);
debug!("Using cpal device");
let stream = rodio::OutputStream::try_from_device(&rodio_device)
.expect("Couldn't open output stream.");
debug!("Using rodio stream");
let sink = rodio::Sink::try_new(&stream.1).expect("Couldn't create output sink.");
debug!("Using rodio sink");
RodioSink {
rodio_sink: sink,
stream: stream.0,
}
info!(
"Using Rodio sink with format {:?} and cpal host: {:?}",
format,
host.id()
);
Self::open_sink(&host, device, format)
}
}
@ -126,89 +180,18 @@ impl Open for RodioSink {
any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd")
))]
impl Open for JackRodioSink {
fn open(device: Option<String>) -> JackRodioSink {
fn open(device: Option<String>, format: AudioFormat) -> JackRodioSink {
let host = cpal::host_from_id(
cpal::available_hosts()
.into_iter()
.find(|id| *id == cpal::HostId::Jack)
.expect("Jack Host not found"),
.expect("JACK host not found"),
)
.expect("Jack Host not found");
debug!("Using jack rodio sink with cpal Jack host");
let rodio_device = match_device(&host, device);
debug!("Using cpal device");
let stream = rodio::OutputStream::try_from_device(&rodio_device)
.expect("Couldn't open output stream.");
debug!("Using jack rodio stream");
let sink = rodio::Sink::try_new(&stream.1).expect("Couldn't create output sink.");
debug!("Using jack rodio sink");
JackRodioSink {
jackrodio_sink: sink,
stream: stream.0,
}
}
}
impl Sink for RodioSink {
fn start(&mut self) -> io::Result<()> {
// More similar to an "unpause" than "play". Doesn't undo "stop".
// self.rodio_sink.play();
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
// This will immediately stop playback, but the sink is then unusable.
// We just have to let the current buffer play till the end.
// self.rodio_sink.stop();
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
let source = rodio::buffer::SamplesBuffer::new(2, 44100, packet.samples());
self.rodio_sink.append(source);
// Chunk sizes seem to be about 256 to 3000 ish items long.
// Assuming they're on average 1628 then a half second buffer is:
// 44100 elements --> about 27 chunks
while self.rodio_sink.len() > 26 {
// sleep and wait for rodio to drain a bit
thread::sleep(time::Duration::from_millis(10));
}
Ok(())
}
}
#[cfg(all(
feature = "rodiojack-backend",
any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd")
))]
impl Sink for JackRodioSink {
fn start(&mut self) -> io::Result<()> {
// More similar to an "unpause" than "play". Doesn't undo "stop".
// self.rodio_sink.play();
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
// This will immediately stop playback, but the sink is then unusable.
// We just have to let the current buffer play till the end.
// self.rodio_sink.stop();
Ok(())
}
fn write(&mut self, data: &[i16]) -> io::Result<()> {
let source = rodio::buffer::SamplesBuffer::new(2, 44100, data);
self.jackrodio_sink.append(source);
// Chunk sizes seem to be about 256 to 3000 ish items long.
// Assuming they're on average 1628 then a half second buffer is:
// 44100 elements --> about 27 chunks
while self.jackrodio_sink.len() > 26 {
// sleep and wait for rodio to drain a bit
thread::sleep(time::Duration::from_millis(10));
}
Ok(())
.expect("JACK host not found");
info!(
"Using JACK Rodio sink with format {:?} and cpal JACK host",
format
);
Self::open_sink(&host, device, format)
}
}

View file

@ -1,57 +1,112 @@
use super::{Open, Sink};
use crate::audio::AudioPacket;
use crate::audio::{AudioPacket, SamplesConverter};
use crate::config::AudioFormat;
use crate::player::{NUM_CHANNELS, SAMPLE_RATE};
use sdl2::audio::{AudioQueue, AudioSpecDesired};
use std::{io, thread, time};
type Channel = i16;
pub struct SdlSink {
queue: AudioQueue<Channel>,
pub enum SdlSink {
F32(AudioQueue<f32>),
S32(AudioQueue<i32>),
S16(AudioQueue<i16>),
}
impl Open for SdlSink {
fn open(device: Option<String>) -> SdlSink {
debug!("Using SDL sink");
fn open(device: Option<String>, format: AudioFormat) -> Self {
info!("Using SDL sink with format: {:?}", format);
if device.is_some() {
panic!("SDL sink does not support specifying a device name");
warn!("SDL sink does not support specifying a device name");
}
let ctx = sdl2::init().expect("Could not init SDL");
let audio = ctx.audio().expect("Could not init SDL audio subsystem");
let ctx = sdl2::init().expect("could not initialize SDL");
let audio = ctx
.audio()
.expect("could not initialize SDL audio subsystem");
let desired_spec = AudioSpecDesired {
freq: Some(44_100),
channels: Some(2),
freq: Some(SAMPLE_RATE as i32),
channels: Some(NUM_CHANNELS),
samples: None,
};
let queue = audio
.open_queue(None, &desired_spec)
.expect("Could not open SDL audio device");
SdlSink { queue: queue }
macro_rules! open_sink {
($sink: expr, $type: ty) => {{
let queue: AudioQueue<$type> = audio
.open_queue(None, &desired_spec)
.expect("could not open SDL audio device");
$sink(queue)
}};
}
match format {
AudioFormat::F32 => open_sink!(Self::F32, f32),
AudioFormat::S32 => open_sink!(Self::S32, i32),
AudioFormat::S16 => open_sink!(Self::S16, i16),
_ => {
unimplemented!("SDL currently does not support {:?} output", format)
}
}
}
}
impl Sink for SdlSink {
fn start(&mut self) -> io::Result<()> {
self.queue.clear();
self.queue.resume();
macro_rules! start_sink {
($queue: expr) => {{
$queue.clear();
$queue.resume();
}};
}
match self {
Self::F32(queue) => start_sink!(queue),
Self::S32(queue) => start_sink!(queue),
Self::S16(queue) => start_sink!(queue),
};
Ok(())
}
fn stop(&mut self) -> io::Result<()> {
self.queue.pause();
self.queue.clear();
macro_rules! stop_sink {
($queue: expr) => {{
$queue.pause();
$queue.clear();
}};
}
match self {
Self::F32(queue) => stop_sink!(queue),
Self::S32(queue) => stop_sink!(queue),
Self::S16(queue) => stop_sink!(queue),
};
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
while self.queue.size() > (2 * 2 * 44_100) {
// sleep and wait for sdl thread to drain the queue a bit
thread::sleep(time::Duration::from_millis(10));
macro_rules! drain_sink {
($queue: expr, $size: expr) => {{
// sleep and wait for sdl thread to drain the queue a bit
while $queue.size() > (NUM_CHANNELS as u32 * $size as u32 * SAMPLE_RATE) {
thread::sleep(time::Duration::from_millis(10));
}
}};
}
self.queue.queue(packet.samples());
let samples = packet.samples();
match self {
Self::F32(queue) => {
drain_sink!(queue, AudioFormat::F32.size());
queue.queue(samples)
}
Self::S32(queue) => {
let samples_s32: &[i32] = &SamplesConverter::to_s32(samples);
drain_sink!(queue, AudioFormat::S32.size());
queue.queue(samples_s32)
}
Self::S16(queue) => {
let samples_s16: &[i16] = &SamplesConverter::to_s16(samples);
drain_sink!(queue, AudioFormat::S16.size());
queue.queue(samples_s16)
}
};
Ok(())
}
}

View file

@ -1,22 +1,25 @@
use super::{Open, Sink};
use super::{Open, Sink, SinkAsBytes};
use crate::audio::AudioPacket;
use crate::config::AudioFormat;
use shell_words::split;
use std::io::{self, Write};
use std::mem;
use std::process::{Child, Command, Stdio};
use std::slice;
pub struct SubprocessSink {
shell_command: String,
child: Option<Child>,
format: AudioFormat,
}
impl Open for SubprocessSink {
fn open(shell_command: Option<String>) -> SubprocessSink {
fn open(shell_command: Option<String>, format: AudioFormat) -> Self {
info!("Using subprocess sink with format: {:?}", format);
if let Some(shell_command) = shell_command {
SubprocessSink {
shell_command: shell_command,
child: None,
format: format,
}
} else {
panic!("subprocess sink requires specifying a shell command");
@ -44,16 +47,15 @@ impl Sink for SubprocessSink {
Ok(())
}
fn write(&mut self, packet: &AudioPacket) -> io::Result<()> {
let data: &[u8] = unsafe {
slice::from_raw_parts(
packet.samples().as_ptr() as *const u8,
packet.samples().len() * mem::size_of::<i16>(),
)
};
sink_as_bytes!();
}
impl SinkAsBytes for SubprocessSink {
fn write_bytes(&mut self, data: &[u8]) -> io::Result<()> {
if let Some(child) = &mut self.child {
let child_stdin = child.stdin.as_mut().unwrap();
child_stdin.write_all(data)?;
child_stdin.flush()?;
}
Ok(())
}

View file

@ -1,3 +1,6 @@
use crate::audio::i24;
use std::convert::TryFrom;
use std::mem;
use std::str::FromStr;
#[derive(Clone, Copy, Debug, Hash, PartialOrd, Ord, PartialEq, Eq)]
@ -11,17 +14,58 @@ impl FromStr for Bitrate {
type Err = ();
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"96" => Ok(Bitrate::Bitrate96),
"160" => Ok(Bitrate::Bitrate160),
"320" => Ok(Bitrate::Bitrate320),
"96" => Ok(Self::Bitrate96),
"160" => Ok(Self::Bitrate160),
"320" => Ok(Self::Bitrate320),
_ => Err(()),
}
}
}
impl Default for Bitrate {
fn default() -> Bitrate {
Bitrate::Bitrate160
fn default() -> Self {
Self::Bitrate160
}
}
#[derive(Clone, Copy, Debug, Hash, PartialOrd, Ord, PartialEq, Eq)]
pub enum AudioFormat {
F32,
S32,
S24,
S24_3,
S16,
}
impl TryFrom<&String> for AudioFormat {
type Error = ();
fn try_from(s: &String) -> Result<Self, Self::Error> {
match s.to_uppercase().as_str() {
"F32" => Ok(Self::F32),
"S32" => Ok(Self::S32),
"S24" => Ok(Self::S24),
"S24_3" => Ok(Self::S24_3),
"S16" => Ok(Self::S16),
_ => Err(()),
}
}
}
impl Default for AudioFormat {
fn default() -> Self {
Self::S16
}
}
impl AudioFormat {
// not used by all backends
#[allow(dead_code)]
pub fn size(&self) -> usize {
match self {
Self::S24_3 => mem::size_of::<i24>(),
Self::S16 => mem::size_of::<i16>(),
_ => mem::size_of::<i32>(), // S32 and S24 are both stored in i32
}
}
}
@ -35,16 +79,39 @@ impl FromStr for NormalisationType {
type Err = ();
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"album" => Ok(NormalisationType::Album),
"track" => Ok(NormalisationType::Track),
"album" => Ok(Self::Album),
"track" => Ok(Self::Track),
_ => Err(()),
}
}
}
impl Default for NormalisationType {
fn default() -> NormalisationType {
NormalisationType::Album
fn default() -> Self {
Self::Album
}
}
#[derive(Clone, Debug, PartialEq)]
pub enum NormalisationMethod {
Basic,
Dynamic,
}
impl FromStr for NormalisationMethod {
type Err = ();
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"basic" => Ok(Self::Basic),
"dynamic" => Ok(Self::Dynamic),
_ => Err(()),
}
}
}
impl Default for NormalisationMethod {
fn default() -> Self {
Self::Dynamic
}
}
@ -53,7 +120,12 @@ pub struct PlayerConfig {
pub bitrate: Bitrate,
pub normalisation: bool,
pub normalisation_type: NormalisationType,
pub normalisation_method: NormalisationMethod,
pub normalisation_pregain: f32,
pub normalisation_threshold: f32,
pub normalisation_attack: f32,
pub normalisation_release: f32,
pub normalisation_knee: f32,
pub gapless: bool,
pub passthrough: bool,
}
@ -64,7 +136,12 @@ impl Default for PlayerConfig {
bitrate: Bitrate::default(),
normalisation: false,
normalisation_type: NormalisationType::default(),
normalisation_method: NormalisationMethod::default(),
normalisation_pregain: 0.0,
normalisation_threshold: -1.0,
normalisation_attack: 0.005,
normalisation_release: 0.1,
normalisation_knee: 1.0,
gapless: true,
passthrough: false,
}

View file

@ -12,7 +12,7 @@ pub trait Mixer: Send {
}
pub trait AudioFilter {
fn modify_stream(&self, data: &mut [i16]);
fn modify_stream(&self, data: &mut [f32]);
}
#[cfg(feature = "alsa-backend")]

View file

@ -35,11 +35,12 @@ struct SoftVolumeApplier {
}
impl AudioFilter for SoftVolumeApplier {
fn modify_stream(&self, data: &mut [i16]) {
fn modify_stream(&self, data: &mut [f32]) {
let volume = self.volume.load(Ordering::Relaxed) as u16;
if volume != 0xFFFF {
let volume_factor = volume as f64 / 0xFFFF as f64;
for x in data.iter_mut() {
*x = (*x as i32 * volume as i32 / 0xFFFF) as i16;
*x = (*x as f64 * volume_factor) as f32;
}
}
}

View file

@ -9,7 +9,7 @@ use std::mem;
use std::thread;
use std::time::{Duration, Instant};
use crate::config::{Bitrate, NormalisationType, PlayerConfig};
use crate::config::{Bitrate, NormalisationMethod, NormalisationType, PlayerConfig};
use librespot_core::session::Session;
use librespot_core::spotify_id::SpotifyId;
@ -25,7 +25,12 @@ use crate::audio_backend::Sink;
use crate::metadata::{AudioItem, FileFormat};
use crate::mixer::AudioFilter;
pub const SAMPLE_RATE: u32 = 44100;
pub const NUM_CHANNELS: u8 = 2;
pub const SAMPLES_PER_SECOND: u32 = SAMPLE_RATE as u32 * NUM_CHANNELS as u32;
const PRELOAD_NEXT_TRACK_BEFORE_END_DURATION_MS: u32 = 30000;
const DB_VOLTAGE_RATIO: f32 = 20.0;
pub struct Player {
commands: Option<futures::sync::mpsc::UnboundedSender<PlayerCommand>>,
@ -54,6 +59,13 @@ struct PlayerInternal {
sink_event_callback: Option<SinkEventCallback>,
audio_filter: Option<Box<dyn AudioFilter + Send>>,
event_senders: Vec<futures::sync::mpsc::UnboundedSender<PlayerEvent>>,
limiter_active: bool,
limiter_attack_counter: u32,
limiter_release_counter: u32,
limiter_peak_sample: f32,
limiter_factor: f32,
limiter_strength: f32,
}
enum PlayerCommand {
@ -185,7 +197,7 @@ impl PlayerEvent {
pub type PlayerEventChannel = futures::sync::mpsc::UnboundedReceiver<PlayerEvent>;
#[derive(Clone, Copy, Debug)]
struct NormalisationData {
pub struct NormalisationData {
track_gain_db: f32,
track_peak: f32,
album_gain_db: f32,
@ -193,6 +205,14 @@ struct NormalisationData {
}
impl NormalisationData {
pub fn db_to_ratio(db: f32) -> f32 {
return f32::powf(10.0, db / DB_VOLTAGE_RATIO);
}
pub fn ratio_to_db(ratio: f32) -> f32 {
return ratio.log10() * DB_VOLTAGE_RATIO;
}
fn parse_from_file<T: Read + Seek>(mut file: T) -> Result<NormalisationData> {
const SPOTIFY_NORMALIZATION_HEADER_START_OFFSET: u64 = 144;
file.seek(SeekFrom::Start(SPOTIFY_NORMALIZATION_HEADER_START_OFFSET))
@ -218,17 +238,41 @@ impl NormalisationData {
NormalisationType::Album => [data.album_gain_db, data.album_peak],
NormalisationType::Track => [data.track_gain_db, data.track_peak],
};
let mut normalisation_factor =
f32::powf(10.0, (gain_db + config.normalisation_pregain) / 20.0);
if normalisation_factor * gain_peak > 1.0 {
warn!("Reducing normalisation factor to prevent clipping. Please add negative pregain to avoid.");
normalisation_factor = 1.0 / gain_peak;
let normalisation_power = gain_db + config.normalisation_pregain;
let mut normalisation_factor = Self::db_to_ratio(normalisation_power);
if normalisation_factor * gain_peak > config.normalisation_threshold {
let limited_normalisation_factor = config.normalisation_threshold / gain_peak;
let limited_normalisation_power = Self::ratio_to_db(limited_normalisation_factor);
if config.normalisation_method == NormalisationMethod::Basic {
warn!("Limiting gain to {:.2} for the duration of this track to stay under normalisation threshold.", limited_normalisation_power);
normalisation_factor = limited_normalisation_factor;
} else {
warn!(
"This track will at its peak be subject to {:.2} dB of dynamic limiting.",
normalisation_power - limited_normalisation_power
);
}
warn!("Please lower pregain to avoid.");
}
debug!("Normalisation Data: {:?}", data);
debug!("Normalisation Type: {:?}", config.normalisation_type);
debug!("Applied normalisation factor: {}", normalisation_factor);
debug!(
"Normalisation Threshold: {:.1}",
Self::ratio_to_db(config.normalisation_threshold)
);
debug!("Normalisation Method: {:?}", config.normalisation_method);
debug!("Normalisation Factor: {}", normalisation_factor);
if config.normalisation_method == NormalisationMethod::Dynamic {
debug!("Normalisation Attack: {:?}", config.normalisation_attack);
debug!("Normalisation Release: {:?}", config.normalisation_release);
debug!("Normalisation Knee: {:?}", config.normalisation_knee);
}
normalisation_factor
}
@ -262,6 +306,13 @@ impl Player {
sink_event_callback: None,
audio_filter: audio_filter,
event_senders: [event_sender].to_vec(),
limiter_active: false,
limiter_attack_counter: 0,
limiter_release_counter: 0,
limiter_peak_sample: 0.0,
limiter_factor: 1.0,
limiter_strength: 0.0,
};
// While PlayerInternal is written as a future, it still contains blocking code.
@ -887,8 +938,8 @@ impl Future for PlayerInternal {
if !self.config.passthrough {
if let Some(ref packet) = packet {
*stream_position_pcm =
*stream_position_pcm + (packet.samples().len() / 2) as u64;
*stream_position_pcm = *stream_position_pcm
+ (packet.samples().len() / NUM_CHANNELS as usize) as u64;
let stream_position_millis =
Self::position_pcm_to_ms(*stream_position_pcm);
@ -1113,9 +1164,116 @@ impl PlayerInternal {
editor.modify_stream(data)
}
if self.config.normalisation && normalisation_factor != 1.0 {
for x in data.iter_mut() {
*x = (*x as f32 * normalisation_factor) as i16;
if self.config.normalisation
&& (normalisation_factor != 1.0
|| self.config.normalisation_method != NormalisationMethod::Basic)
{
for sample in data.iter_mut() {
let mut actual_normalisation_factor = normalisation_factor;
if self.config.normalisation_method == NormalisationMethod::Dynamic
{
if self.limiter_active {
// "S"-shaped curve with a configurable knee during attack and release:
// - > 1.0 yields soft knees at start and end, steeper in between
// - 1.0 yields a linear function from 0-100%
// - between 0.0 and 1.0 yields hard knees at start and end, flatter in between
// - 0.0 yields a step response to 50%, causing distortion
// - Rates < 0.0 invert the limiter and are invalid
let mut shaped_limiter_strength = self.limiter_strength;
if shaped_limiter_strength > 0.0
&& shaped_limiter_strength < 1.0
{
shaped_limiter_strength = 1.0
/ (1.0
+ f32::powf(
shaped_limiter_strength
/ (1.0 - shaped_limiter_strength),
-1.0 * self.config.normalisation_knee,
));
}
actual_normalisation_factor =
(1.0 - shaped_limiter_strength) * normalisation_factor
+ shaped_limiter_strength * self.limiter_factor;
};
// Always check for peaks, even when the limiter is already active.
// There may be even higher peaks than we initially targeted.
// Check against the normalisation factor that would be applied normally.
let abs_sample =
((*sample as f64 * normalisation_factor as f64) as f32)
.abs();
if abs_sample > self.config.normalisation_threshold {
self.limiter_active = true;
if self.limiter_release_counter > 0 {
// A peak was encountered while releasing the limiter;
// synchronize with the current release limiter strength.
self.limiter_attack_counter = (((SAMPLES_PER_SECOND
as f32
* self.config.normalisation_release)
- self.limiter_release_counter as f32)
/ (self.config.normalisation_release
/ self.config.normalisation_attack))
as u32;
self.limiter_release_counter = 0;
}
self.limiter_attack_counter =
self.limiter_attack_counter.saturating_add(1);
self.limiter_strength = self.limiter_attack_counter as f32
/ (SAMPLES_PER_SECOND as f32
* self.config.normalisation_attack);
if abs_sample > self.limiter_peak_sample {
self.limiter_peak_sample = abs_sample;
self.limiter_factor =
self.config.normalisation_threshold
/ self.limiter_peak_sample;
}
} else if self.limiter_active {
if self.limiter_attack_counter > 0 {
// Release may start within the attack period, before
// the limiter reached full strength. For that reason
// start the release by synchronizing with the current
// attack limiter strength.
self.limiter_release_counter = (((SAMPLES_PER_SECOND
as f32
* self.config.normalisation_attack)
- self.limiter_attack_counter as f32)
* (self.config.normalisation_release
/ self.config.normalisation_attack))
as u32;
self.limiter_attack_counter = 0;
}
self.limiter_release_counter =
self.limiter_release_counter.saturating_add(1);
if self.limiter_release_counter
> (SAMPLES_PER_SECOND as f32
* self.config.normalisation_release)
as u32
{
self.reset_limiter();
} else {
self.limiter_strength = ((SAMPLES_PER_SECOND as f32
* self.config.normalisation_release)
- self.limiter_release_counter as f32)
/ (SAMPLES_PER_SECOND as f32
* self.config.normalisation_release);
}
}
}
*sample =
(*sample as f64 * actual_normalisation_factor as f64) as f32;
// Extremely sharp attacks, however unlikely, *may* still clip and provide
// undefined results, so strictly enforce output within [-1.0, 1.0].
if *sample < -1.0 {
*sample = -1.0;
} else if *sample > 1.0 {
*sample = 1.0;
}
}
}
}
@ -1146,6 +1304,15 @@ impl PlayerInternal {
}
}
fn reset_limiter(&mut self) {
self.limiter_active = false;
self.limiter_release_counter = 0;
self.limiter_attack_counter = 0;
self.limiter_peak_sample = 0.0;
self.limiter_factor = 1.0;
self.limiter_strength = 0.0;
}
fn start_playback(
&mut self,
track_id: SpotifyId,

View file

@ -2,6 +2,7 @@ use futures::sync::mpsc::UnboundedReceiver;
use futures::{Async, Future, Poll, Stream};
use log::{error, info, trace, warn};
use sha1::{Digest, Sha1};
use std::convert::TryFrom;
use std::env;
use std::io::{stderr, Write};
use std::mem;
@ -22,13 +23,17 @@ use librespot::core::version;
use librespot::connect::discovery::{discovery, DiscoveryStream};
use librespot::connect::spirc::{Spirc, SpircTask};
use librespot::playback::audio_backend::{self, Sink, BACKENDS};
use librespot::playback::config::{Bitrate, NormalisationType, PlayerConfig};
use librespot::playback::config::{
AudioFormat, Bitrate, NormalisationMethod, NormalisationType, PlayerConfig,
};
use librespot::playback::mixer::{self, Mixer, MixerConfig};
use librespot::playback::player::{Player, PlayerEvent};
use librespot::playback::player::{NormalisationData, Player, PlayerEvent};
mod player_event_handler;
use crate::player_event_handler::{emit_sink_event, run_program_on_events};
const MILLIS: f32 = 1000.0;
fn device_id(name: &str) -> String {
hex::encode(Sha1::digest(name.as_bytes()))
}
@ -83,7 +88,8 @@ fn print_version() {
#[derive(Clone)]
struct Setup {
backend: fn(Option<String>) -> Box<dyn Sink>,
format: AudioFormat,
backend: fn(Option<String>, AudioFormat) -> Box<dyn Sink>,
device: Option<String>,
mixer: fn(Option<MixerConfig>) -> Box<dyn Mixer>,
@ -147,6 +153,12 @@ fn setup(args: &[String]) -> Setup {
"Audio device to use. Use '?' to list options if using portaudio or alsa",
"DEVICE",
)
.optopt(
"",
"format",
"Output format (F32, S32, S24, S24_3 or S16). Defaults to S16",
"FORMAT",
)
.optopt("", "mixer", "Mixer to use (alsa or softvol)", "MIXER")
.optopt(
"m",
@ -188,6 +200,12 @@ fn setup(args: &[String]) -> Setup {
"enable-volume-normalisation",
"Play all tracks at the same volume",
)
.optopt(
"",
"normalisation-method",
"Specify the normalisation method to use - [basic, dynamic]. Default is dynamic.",
"NORMALISATION_METHOD",
)
.optopt(
"",
"normalisation-gain-type",
@ -200,6 +218,30 @@ fn setup(args: &[String]) -> Setup {
"Pregain (dB) applied by volume normalisation",
"PREGAIN",
)
.optopt(
"",
"normalisation-threshold",
"Threshold (dBFS) to prevent clipping. Default is -1.0.",
"THRESHOLD",
)
.optopt(
"",
"normalisation-attack",
"Attack time (ms) in which the dynamic limiter is reducing gain. Default is 5.",
"ATTACK",
)
.optopt(
"",
"normalisation-release",
"Release or decay time (ms) in which the dynamic limiter is restoring gain. Default is 100.",
"RELEASE",
)
.optopt(
"",
"normalisation-knee",
"Knee steepness of the dynamic limiter. Default is 1.0.",
"KNEE",
)
.optopt(
"",
"volume-ctrl",
@ -260,9 +302,15 @@ fn setup(args: &[String]) -> Setup {
let backend = audio_backend::find(backend_name).expect("Invalid backend");
let format = matches
.opt_str("format")
.as_ref()
.map(|format| AudioFormat::try_from(format).expect("Invalid output format"))
.unwrap_or(AudioFormat::default());
let device = matches.opt_str("device");
if device == Some("?".into()) {
backend(device);
backend(device, format);
exit(0);
}
@ -390,15 +438,47 @@ fn setup(args: &[String]) -> Setup {
NormalisationType::from_str(gain_type).expect("Invalid normalisation type")
})
.unwrap_or(NormalisationType::default());
let normalisation_method = matches
.opt_str("normalisation-method")
.as_ref()
.map(|gain_type| {
NormalisationMethod::from_str(gain_type).expect("Invalid normalisation method")
})
.unwrap_or(NormalisationMethod::default());
PlayerConfig {
bitrate: bitrate,
gapless: !matches.opt_present("disable-gapless"),
normalisation: matches.opt_present("enable-volume-normalisation"),
normalisation_method: normalisation_method,
normalisation_type: gain_type,
normalisation_pregain: matches
.opt_str("normalisation-pregain")
.map(|pregain| pregain.parse::<f32>().expect("Invalid pregain float value"))
.unwrap_or(PlayerConfig::default().normalisation_pregain),
normalisation_threshold: NormalisationData::db_to_ratio(
matches
.opt_str("normalisation-threshold")
.map(|threshold| {
threshold
.parse::<f32>()
.expect("Invalid threshold float value")
})
.unwrap_or(PlayerConfig::default().normalisation_threshold),
),
normalisation_attack: matches
.opt_str("normalisation-attack")
.map(|attack| attack.parse::<f32>().expect("Invalid attack float value"))
.unwrap_or(PlayerConfig::default().normalisation_attack * MILLIS)
/ MILLIS,
normalisation_release: matches
.opt_str("normalisation-release")
.map(|release| release.parse::<f32>().expect("Invalid release float value"))
.unwrap_or(PlayerConfig::default().normalisation_release * MILLIS)
/ MILLIS,
normalisation_knee: matches
.opt_str("normalisation-knee")
.map(|knee| knee.parse::<f32>().expect("Invalid knee float value"))
.unwrap_or(PlayerConfig::default().normalisation_knee),
passthrough,
}
};
@ -428,6 +508,7 @@ fn setup(args: &[String]) -> Setup {
let enable_discovery = !matches.opt_present("disable-discovery");
Setup {
format: format,
backend: backend,
cache: cache,
session_config: session_config,
@ -449,7 +530,8 @@ struct Main {
player_config: PlayerConfig,
session_config: SessionConfig,
connect_config: ConnectConfig,
backend: fn(Option<String>) -> Box<dyn Sink>,
format: AudioFormat,
backend: fn(Option<String>, AudioFormat) -> Box<dyn Sink>,
device: Option<String>,
mixer: fn(Option<MixerConfig>) -> Box<dyn Mixer>,
mixer_config: MixerConfig,
@ -479,6 +561,7 @@ impl Main {
session_config: setup.session_config,
player_config: setup.player_config,
connect_config: setup.connect_config,
format: setup.format,
backend: setup.backend,
device: setup.device,
mixer: setup.mixer,
@ -558,11 +641,12 @@ impl Future for Main {
let connect_config = self.connect_config.clone();
let audio_filter = mixer.get_audio_filter();
let format = self.format;
let backend = self.backend;
let device = self.device.clone();
let (player, event_channel) =
Player::new(player_config, session.clone(), audio_filter, move || {
(backend)(device)
(backend)(device, format)
});
if self.emit_sink_events {