Initial commit. Reacording and grabbing samples for vu meter works
This commit is contained in:
commit
9a328a9ba2
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target/
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**/*.rs.bk
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[root]
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name = "rascam"
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version = "0.1.0"
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dependencies = [
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"gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)",
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"itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "either"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "gstreamer"
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version = "0.7.2"
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source = "git+https://github.com/arturoc/gstreamer1.0-rs.git#1b7eaf024130520922c4f98f4ada135f58cfc315"
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[[package]]
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name = "itertools"
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version = "0.6.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "quote"
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version = "0.3.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde"
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version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde_derive"
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version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive_internals 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "serde_derive_internals"
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version = "0.15.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "syn"
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version = "0.11.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "synom"
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version = "0.11.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "toml"
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version = "0.4.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "unicode-xid"
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version = "0.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18785c1ba806c258137c937e44ada9ee7e69a37e3c72077542cd2f069d78562a"
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"checksum gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)" = "<none>"
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"checksum itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "22c285d60139cf413244894189ca52debcfd70b57966feed060da76802e415a0"
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"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
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"checksum serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7f61b753dd58ec5d4c735f794dbddde1f28b977f652afbcde89d75bc77902216"
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"checksum serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2a169fa5384d751ada1da9f3992b81830151a03c875e40dcb37c9fb31aafc68f"
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"checksum serde_derive_internals 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)" = "37aee4e0da52d801acfbc0cc219eb1eda7142112339726e427926a6f6ee65d3a"
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"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
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"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
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"checksum toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a7540f4ffc193e0d3c94121edb19b055670d369f77d5804db11ae053a45b6e7e"
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"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
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@ -0,0 +1,11 @@
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[package]
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name = "rascam"
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version = "0.1.0"
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authors = ["LongHairedHacker <sebastian@sebastians-site.de>"]
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[dependencies]
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itertools = "*"
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serde = "*"
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serde_derive = "*"
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toml = "*"
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gstreamer = { git = "https://github.com/arturoc/gstreamer1.0-rs.git" }
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@ -0,0 +1,7 @@
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[audio]
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alsa_device = "hw:1,0"
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rate = 96000
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[output]
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prefix = "test"
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directory = "./output/"
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extern crate toml;
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#[macro_use]
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extern crate serde_derive;
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extern crate gst;
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extern crate itertools;
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use std::fs::File;
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use std::io::prelude::*;
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use std::thread;
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use std::time::Duration;
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use itertools::Itertools;
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#[derive(Debug, Deserialize)]
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struct Config {
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audio: AudioConfig,
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output: OutputConfig,
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}
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#[derive(Debug, Deserialize)]
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struct AudioConfig {
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alsa_device: String,
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rate: u32,
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}
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#[derive(Debug, Deserialize)]
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struct OutputConfig {
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directory: String,
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prefix: String,
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}
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fn read_config(path: &str) -> Config {
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let mut config_toml = String::new();
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let mut file = match File::open(path) {
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Ok(file) => file,
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Err(_) => panic!("Could not find config file!"),
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};
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file.read_to_string(&mut config_toml)
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.unwrap_or_else(|err| panic!("Error while reading config: [{}]", err));
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let config: Config =
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toml::from_str(&config_toml).unwrap_or_else(|err| {
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panic!("Error while parsing config: [{}]",
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err)
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});
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return config;
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}
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fn main() {
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gst::init();
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let config = read_config("rascam.toml");
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let pipeline_str = format!("alsasrc device={} ! audio/x-raw,rate={},channels=2 ! queue ! tee name=apptee ! audioconvert ! flacenc ! filesink location={}/{}.flac apptee. ! queue ! audioconvert ! appsink name=appsink0 caps=\"audio/x-raw,format=F32LE,channels=2\"",
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config.audio.alsa_device,
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config.audio.rate,
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config.output.directory,
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config.output.prefix);
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let mut pipeline = gst::Pipeline::new_from_str(&pipeline_str).unwrap();
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let mut mainloop = gst::MainLoop::new();
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let mut bus = pipeline.bus().expect("Couldn't get bus from pipeline");
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let bus_receiver = bus.receiver();
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let appsink = pipeline
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.get_by_name("appsink0")
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.expect("Couldn't get appsink from pipeline");
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let appsink = gst::AppSink::new_from_element(appsink);
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mainloop.spawn();
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pipeline.play();
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loop {
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let mut exit = false;
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while let Ok(msg) = bus_receiver.try_recv() {
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match msg.parse() {
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gst::Message::StateChangedParsed { ref old, ref new, .. } => {
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println!("element `{}` changed from {:?} to {:?}",
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msg.src_name(),
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old,
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new);
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}
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gst::Message::ErrorParsed {ref error, ref debug, .. } => {
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println!("error msg from element `{}`: {}, {}. Quitting",
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msg.src_name(),
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error.message(),
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debug);
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exit = true;
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break;
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}
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_ => {
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println!("msg of type `{}` from element `{}`",
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msg.type_name(),
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msg.src_name());
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}
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}
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}
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if exit {
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break;
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}
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match appsink.recv(){
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Ok(gst::appsink::Message::NewSample(sample)) | Ok(gst::appsink::Message::NewPreroll(sample)) => {
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if let Some(buffer) = sample.buffer() {
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let (max0, max1) = buffer.map_read(|mapping| {
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mapping.iter::<f32>().tuples().fold((0.0f32, 0.0f32), |(acc0, acc1), (sample0, sample1)| {
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(acc0.max(sample0.abs()), acc1.max(sample1.abs()))
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})
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}).unwrap();
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println!("{} | {}", max0, max1);
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}
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}
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Ok(gst::appsink::Message::Eos) => {
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println!("Got no sample when polling. EOS");
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break;
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}
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Err(_) => {
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println!("Error, exiting");
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break;
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}
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}
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}
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mainloop.quit();
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}
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gst-launch-1.0 -v alsasrc device=hw:1,0 ! queue ! audio/x-raw,rate=96000 ! audioconvert ! flacenc ! filesink location=test.flac
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