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extern crate dbus;
#[macro_use]
extern crate log;
#[macro_use]
extern crate failure;
#[macro_use]
extern crate clap;
extern crate clap_log_flag;
extern crate clap_verbosity_flag;
#[macro_use]
extern crate structopt;
extern crate lalrpop_util;
mod dbus_api;
mod parsing;
mod utils;
use utils::*;
use dbus_api::sink::OrgPulseAudioExtEqualizing1Equalizer;
use failure::Error;
use structopt::StructOpt;
use std::fs::File;
use std::io;
#[derive(StructOpt, Debug)]
#[structopt(raw(setting = "structopt::clap::AppSettings::ColoredHelp"))]
/// Hello World! How are you doing?
struct Cli {
#[structopt(flatten)]
verbose: clap_verbosity_flag::Verbosity,
#[structopt(flatten)]
log: clap_log_flag::Log,
#[structopt(short = "s")]
/// Use the given sink.
///
/// By default it will use the last equalized sink it finds
sink: Option<String>,
#[structopt(subcommand)]
cmd: Command,
}
#[derive(StructOpt, Debug)]
enum Command {
#[structopt(name = "load",)]
/// Load and switch to a given equalizer configuration
Load(LoadCli),
#[structopt(name = "reset")]
/// Switch to a neutral equalizer
Reset(ResetCli),
}
#[derive(StructOpt, Debug)]
struct LoadCli {
#[structopt(default_value = "-")]
/// The file from which to load the equalizer configuration
///
/// If "-" is given, read the configuration from the command-line.
file: String,
#[structopt(
short = "f",
raw(
possible_values = "&EqualizerConfFormat::variants()",
case_insensitive = "true"
),
default_value = "EqualizerAPO"
)]
/// The file format of the equalizer configuration
format: EqualizerConfFormat,
}
arg_enum! {
#[derive(Debug)]
enum EqualizerConfFormat {
EqualizerAPO
}
}
#[derive(StructOpt, Debug)]
struct ResetCli {}
#[derive(Debug)]
pub struct Filter {
preamp: f64,
frequencies: Vec<u32>,
coefficients: Vec<f64>,
}
impl Filter {
fn pad(self, filter_rate: u32) -> Self {
Filter {
preamp: self.preamp,
frequencies: vec![0u32]
.into_iter()
.chain(self.frequencies.into_iter())
.chain(vec![filter_rate / 2u32])
.collect(),
coefficients: vec![1f64]
.into_iter()
.chain(self.coefficients.into_iter())
.chain(vec![1f64])
.collect(),
}
}
}
fn main() {
match start() {
Ok(()) => (),
Err(err) => {
eprintln!("Error: {}", err);
for cause in err.iter_causes() {
eprintln!(" : {}", cause);
}
std::process::exit(-1);
}
}
}
fn start() -> Result<(), Error> {
let args = Cli::from_args();
args.log.log_all(args.verbose.log_level())?;
use Command::*;
match args.cmd {
Load(args) => load(args),
Reset(args) => reset(args),
}
}
fn reset(args: ResetCli) -> Result<(), Error> {
let conn = connect()?;
let conn_sink = get_equalized_sink(&conn)?;
let filter_rate = conn_sink.get_filter_sample_rate()?;
let filter = Filter {
preamp: 1f64,
frequencies: vec![],
coefficients: vec![],
}.pad(filter_rate);
send_filter(&conn_sink, filter)?;
Ok(())
}
fn load(args: LoadCli) -> Result<(), Error> {
let conn = connect()?;
let conn_sink = get_equalized_sink(&conn)?;
let filter = if args.file == "-" {
let stdin = io::stdin();
let mut handle = stdin.lock();
read_filter(&mut handle)?
} else {
let mut file = File::open(args.file)?;
read_filter(&mut file)?
};
let filter_rate = conn_sink.get_filter_sample_rate()?;
send_filter(&conn_sink, filter.pad(filter_rate))?;
Ok(())
}
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