Music and controls!!!!! 🎉

This commit is contained in:
Emi Simpson 2022-01-03 18:19:10 -05:00
parent 02fbd15f44
commit c211e79658
Signed by: Emi
GPG Key ID: A12F2C2FFDC3D847
10 changed files with 811 additions and 64 deletions

4
.gitmodules vendored Normal file
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@ -0,0 +1,4 @@
[submodule "rodio"]
path = rodio
url = https://github.com/Alch-Emi/rodio.git
branch = new-from-format-reader

406
Cargo.lock generated
View File

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version = "0.4.0"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5260599daba18d8fe905ca3eb3b42ba210529a6276886632412cc74984e79b1a"
checksum = "db5e36e38a7400f968569135e7ac0f8647de42e93905ad41c79d583aaeae565c"
dependencies = [
"encoding_rs",
"lazy_static",
@ -2962,9 +3276,9 @@ dependencies = [
[[package]]
name = "symphonia-utils-xiph"
version = "0.4.0"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6a37026c6948ff842e0bf94b4008579cc71ab16ed0ff9ca70a331f60f4f1e1e9"
checksum = "47377d86d61acf4d5b1a054b8e7a7cac8266155577a5410e4d746aec6394c42a"
dependencies = [
"symphonia-core",
"symphonia-metadata",
@ -3629,8 +3943,8 @@ dependencies = [
"log",
"mio",
"mio-extras",
"ndk",
"ndk-glue",
"ndk 0.2.1",
"ndk-glue 0.2.1",
"ndk-sys",
"objc",
"parking_lot",
@ -3690,7 +4004,7 @@ version = "0.3.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "463705a63313cd4301184381c5e8042f0a7e9b4bb63653f216311d4ae74690b7"
dependencies = [
"nom",
"nom 7.1.0",
]
[[package]]

View File

@ -20,9 +20,9 @@ iced_native = "0.4.0"
rfd = "0.6.3"
[dependencies.symphonia]
# Music decoding, playing, and metadata parsing
# Music decoding and metadata parsing
features = ["isomp4", "aac", "mp3"]
version = "0.4.0"
version = "0.3.0"
[dependencies.iced]
# Display windows & graphics
@ -33,3 +33,9 @@ version = "0.3.0"
# Display windows & graphics
features = ["smol"]
version = "0.3.0"
[dependencies.rodio]
# Playing audio
default-features = false
features = ["symphonia"]
path = "./rodio/"

1
rodio Submodule

@ -0,0 +1 @@
Subproject commit 706abafcadab2c0049d7a7724cae43f203ba0f67

View File

@ -1,3 +1,4 @@
use crate::controls::ControlsEvent;
use crate::load_song::load_song;
use crate::editor::Editor;
use crate::file_select::FileSelector;
@ -34,6 +35,7 @@ pub enum Message {
PromptForFile,
FileOpened(PathBuf),
Resized(u32, u32),
ControlsEvent(ControlsEvent),
Null,
}
@ -111,7 +113,12 @@ impl Application for DelyriumApp {
if let Some(lyrics) = self.lyrics_component.as_mut() {
lyrics.notify_resized(w, h);
}
}
},
Message::ControlsEvent(e) => {
if let Some(lyrics) = self.lyrics_component.as_mut() {
lyrics.handle_controls_event(e);
}
},
Message::Null => { },
}
@ -150,15 +157,21 @@ impl Application for DelyriumApp {
}
});
let fps30 = time::every(Duration::from_millis(1000 / 30)).map(|_| Message::Tick);
if self.lyrics_component.is_none() {
Subscription::batch([
runtime_events,
fps30
])
let is_animating = if let Some(editor) = &self.lyrics_component {
editor.is_animating()
} else {
runtime_events
}
true
};
let fps30 = if is_animating {
time::every(Duration::from_millis(1000 / 30)).map(|_| Message::Tick)
} else {
Subscription::none()
};
Subscription::batch([
runtime_events,
fps30
])
}
}

139
src/controls.rs Normal file
View File

@ -0,0 +1,139 @@
use iced::Length;
use iced::Color;
use symphonia::core::formats::FormatReader;
use crate::player::PlayerError;
use iced::canvas::event::Status;
use iced::canvas::Event;
use crate::styles::Theme;
use iced::canvas::Frame;
use iced::canvas::Geometry;
use iced::canvas::Cursor;
use iced::Rectangle;
use crate::app::Message;
use iced::canvas::Program;
use iced::Canvas;
use iced::mouse::{self, Button};
use crate::player::Player;
#[derive(Debug, Clone, Copy)]
pub enum ControlsEvent {
SeekPosition(f32),
TogglePlay,
}
enum ErrorState {
Error(PlayerError),
NoError {
player: Player,
has_device: bool
}
}
use ErrorState::*;
pub struct Controls {
error_state: ErrorState,
}
impl Controls {
pub fn new(song: Box<dyn FormatReader>) -> Self {
match Player::new(song) {
Ok(player) => {
Controls {
error_state: NoError {
has_device: player.has_output_device(),
player,
}
}
},
Err(e) => {
Controls {
error_state: Error(e)
}
}
}
}
pub fn view_progress(&mut self, theme: Theme) -> Canvas<Message, (&Controls, Theme)> {
Canvas::new((&*self, theme))
.width(Length::Units(50))
.height(Length::Fill)
}
pub fn handle_event(&mut self, event: ControlsEvent) {
if let NoError { player, has_device } = &mut self.error_state {
let result = match event {
ControlsEvent::SeekPosition(pos) => player.seek_percentage(pos),
ControlsEvent::TogglePlay => player.toggle_play(),
};
match result {
Ok(now_has_device) => {
*has_device = now_has_device;
},
Err(e) => {
self.error_state = Error(e);
},
};
}
}
pub fn is_playing(&self) -> bool {
if let NoError { player, has_device: true } = &self.error_state {
player.is_playing()
} else {
false
}
}
}
impl Program<Message> for (&Controls, Theme) {
fn draw(&self, bounds: Rectangle<f32>, _cursor: Cursor) -> Vec<Geometry> {
let mut frame = Frame::new(bounds.size());
match &self.0.error_state {
NoError { player, has_device: true } => {
let mut background = self.1.text_color;
background.a = 0.2;
frame.fill_rectangle(bounds.position(), bounds.size(), background);
let mut played_size = bounds.size();
played_size.height *= player.position_percent();
frame.fill_rectangle(bounds.position(), played_size, self.1.text_color);
},
NoError { player: _, has_device: false } => {
let mut background = self.1.text_color;
background.a = 0.1;
frame.fill_rectangle(bounds.position(), bounds.size(), background);
},
Error(e) => {
let background = Color {r: 1., g: 0.1, b: 0.1, a: 1.};
frame.fill_rectangle(bounds.position(), bounds.size(), background);
eprintln!("Error!!! {}", e.to_string());
}
}
vec![frame.into_geometry()]
}
fn update(&mut self, event: Event, bounds: Rectangle<f32>, cursor: Cursor) -> (Status, Option<Message>) {
match (event, cursor) {
(Event::Mouse(mouse::Event::ButtonReleased(Button::Left)), Cursor::Available(pos))
if bounds.contains(pos) => {
let sought = (pos.y - bounds.position().y) / bounds.size().height;
(Status::Captured, Some(Message::ControlsEvent(ControlsEvent::SeekPosition(sought))))
},
(Event::Mouse(mouse::Event::ButtonReleased(Button::Right)), Cursor::Available(pos))
if bounds.contains(pos) => {
// TODO! This should be somewhere intuitive
(Status::Captured, Some(Message::ControlsEvent(ControlsEvent::TogglePlay)))
},
_ => (Status::Ignored, None),
}
}
}

View File

@ -1,3 +1,5 @@
use crate::controls::ControlsEvent;
use crate::controls::Controls;
use crate::lyrics::Lyric;
use crate::lyrics::Lyrics;
use crate::app::Message;
@ -18,7 +20,7 @@ use image::GenericImageView;
pub struct Editor {
lyrics: Lyrics,
theme: Theme,
song: Box<dyn FormatReader>,
controls: Controls,
left_peri: Periphery,
rite_peri: Periphery,
}
@ -40,13 +42,18 @@ impl Editor {
let left_peri = Periphery::new(cover.clone(), true, size);
let rite_peri = Periphery::new(cover, false, size);
let controls = Controls::new(song);
Self {
lyrics: Lyrics::new(),
song, theme, left_peri, rite_peri,
controls, theme, left_peri, rite_peri,
}
}
// TODO: work on untangling this mess
pub fn handle_controls_event(&mut self, event: ControlsEvent) {
self.controls.handle_event(event)
}
pub fn insert_text(&mut self, text: String) {
self.lyrics.insert_text(text);
}
@ -60,6 +67,10 @@ impl Editor {
self.lyrics.current_line_mut()
}
pub fn is_animating(&self) -> bool {
self.controls.is_playing()
}
pub fn notify_resized(&mut self, w: u32, h: u32) {
self.left_peri.notify_resized(w, h);
self.rite_peri.notify_resized(w, h);
@ -70,6 +81,7 @@ impl Editor {
Container::new(
Row::new()
.push(self.left_peri.view())
.push(self.controls.view_progress(self.theme))
.push(self.lyrics.view(self.theme))
.push(self.rite_peri.view())
)

View File

@ -8,12 +8,10 @@ use std::ffi::OsStr;
use symphonia::default;
use symphonia::core::io::MediaSourceStream;
use symphonia::core::probe::{Hint, ProbeResult};
use symphonia::core::meta::MetadataRevision;
use symphonia::core::meta::StandardVisualKey;
use symphonia::core::formats::FormatReader;
pub fn load_song(path: &Path) -> Result<ProbeResult, LoadError> {
let codecs = default::get_codecs();
let probe = default::get_probe();
let file = OpenOptions::new()
@ -44,8 +42,9 @@ pub fn extract_cover(format: &mut dyn FormatReader) -> Option<DynamicImage>{
format.metadata()
.current()
.into_iter()
.flat_map(MetadataRevision::visuals)
.filter_map(|vis| image::load_from_memory(&vis.data).ok().map(|img| (vis.usage, img)))
// Replace this whole closure with MetadataRef::usage once we update
.flat_map(|meta| meta.visuals().iter().map(|v|(v.data.clone(), v.usage.clone())).collect::<Vec<_>>())
.filter_map(|(data, usage)| image::load_from_memory(&data).ok().map(|img| (usage, img)))
.max_by_key(|(usage, _)|
usage.map(|usage| match usage {
StandardVisualKey::FrontCover => 00,

View File

@ -9,6 +9,8 @@ mod file_select;
mod load_song;
mod peripheries;
mod editor;
mod player;
mod controls;
fn main() {
app::DelyriumApp::run(Settings::default()).unwrap();

257
src/player.rs Normal file
View File

@ -0,0 +1,257 @@
use std::time::Instant;
use core::time::Duration;
use rodio::Decoder;
use symphonia::core::formats::FormatReader;
use rodio::source::Buffered;
use rodio::OutputStream;
use rodio::Sink;
use rodio::Source;
use std::fmt;
pub type Song = Buffered<Decoder<std::io::Empty>>;
pub struct Player {
// [Buffered] is a pointer to a linked-list representation of the song, and so cloning
// it is as cheap as cloning an [Arc]. This should always point to the start of the
// song though, and so should not be changed after being initialized.
song: Song,
sink: Option<(Sink, OutputStream)>,
duration: Duration,
/// The position of the playhead when playback started or was last stopped
start_position: Duration,
/// The [`Instant`] playback started
playback_started: Option<Instant>,
}
impl Player {
/// Create a new player from a song
pub fn new(song: Box<dyn FormatReader>) -> Result<Self, PlayerError> {
let song = Decoder::new_from_format_reader(song)
.map_err(PlayerError::DecoderError)?
.buffered();
let duration = get_duration_of_song(song.clone());
let mut player = Player {
sink: None,
start_position: Duration::ZERO,
playback_started: None,
song, duration, };
player.get_or_set_sink()?;
Ok(player)
}
/// Check if an audio sink is available
///
/// Returns `true` if an output device is currently loaded, or `false` if a device was
/// not availble last time we tried to access one.
pub fn has_output_device(&self) -> bool {
self.sink.is_some()
}
/// Attempt to re-request access to the output sink
///
/// Returns `&self.sink`
///
/// Can produce a [PlayerError::PlayError]
fn try_set_sink(&mut self) -> Result<Option<&Sink>, PlayerError> {
self.sink = Some(OutputStream::try_default())
.and_then(|result|
if let Err(&rodio::StreamError::NoDevice) = result.as_ref() {
None // This is okay and doesn't need to raise an error
} else {
Some(result) // We'll report this error
})
.transpose()
.map_err(PlayerError::StreamError)?
.map(|(stream, handle)| Sink::try_new(&handle).map(|sink| (sink, stream)))
.transpose()
.map_err(PlayerError::PlayError)?;
Ok(self.sink.as_ref().map(|(s, _)| s))
}
/// Return the current active sink, or attempt to request a new one
///
/// Equivilent to calling [`try_set_sink()`] if the sink is missing
fn get_or_set_sink(&mut self) -> Result<Option<&Sink>, PlayerError> {
if self.sink.is_some() {
Ok(self.sink.as_ref().map(|(s, _)| s))
} else {
let song = self.song.clone();
let out = self.try_set_sink();
if let Ok(Some(sink)) = out.as_ref() {
sink.pause();
sink.append(song);
}
out
}
}
/// Attempt to resume playback, or start fresh
///
/// Returns `true` if playback was resumed, `false` if there is no audio sink
/// available to start play, and [PlayerError] if there was a problem requesting
/// access to the audio sink.
pub fn play(&mut self) -> Result<bool, PlayerError> {
if let Some(sink) = self.get_or_set_sink()? {
sink.play();
self.playback_started = Some(Instant::now());
Ok(true)
} else {
Ok(false)
}
}
/// Pause playback if playing, do nothing otherwise
///
/// May be resumed later with [`play()`]
pub fn pause(&mut self) {
if let Some((sink, _)) = &self.sink {
sink.pause();
self.start_position = self.position();
self.playback_started = None;
}
}
/// Returns true if the song is currently playing
///
/// That is, if playback has started, has not been paused, and has not ended naturally
/// yet.
pub fn is_playing(&self) -> bool {
self.playback_started.is_some() && self.position() < self.duration
}
/// Toggle playing
///
/// This calls [`play()`] is the track is currently paused or stopped, and calls
/// [`pause()`] is the track is currently playing. If the track was already playing,
/// this will always return `Ok(true)`.
pub fn toggle_play(&mut self) -> Result<bool, PlayerError> {
if self.position() == self.duration {
self.seek(Duration::ZERO)
.and_then(|device| if device { self.play() } else { Ok(false) } )
} else if self.playback_started.is_none() {
self.play()
} else {
self.pause();
Ok(true)
}
}
/// Return the duration of this track
///
/// This is cheap and exact. All processing is done before hand.
pub fn get_duration(&self) -> Duration {
self.duration
}
/// Attempt to seek to a given duration
///
/// This is pretty expensive, since due to technical limitations, this means resetting
/// the player to the beginning before skipping the given duration.
///
/// This can fail if there is no current output sink, and the attempt to access a
/// new one fails. If this is the case, false will be returned, unless the reason the
/// access failed was due to an error.
pub fn seek(&mut self, duration: Duration) -> Result<bool, PlayerError> {
let was_stopped = self.sink
.as_mut()
.map(|(s, _)| s.is_paused() || s.empty())
.unwrap_or(false);
let song = self.song.clone();
if let Some(sink) = self.try_set_sink()? {
sink.pause();
sink.append(
song.skip_duration(duration)
);
if was_stopped {
self.playback_started = None;
} else {
sink.play();
self.playback_started = Some(Instant::now());
}
self.start_position = duration;
Ok(true)
} else {
Ok(false)
}
}
/// Seek to a specific percentage (out of 1.0)
///
/// Performs a [`seek()`] operation, seeking to a given percentage of the song's full
/// length. See [`seek()`] for more details
pub fn seek_percentage(&mut self, percent: f32) -> Result<bool, PlayerError> {
self.seek(
self.duration.mul_f32(percent)
)
}
/// How far into the song the playback head currently is
///
/// Computes the duration of the song that is before the playback head. This is
/// really an approximation based on how much time has elapsed since playback started,
/// but it should be close enough for almost all purposes.
pub fn position(&self) -> Duration {
self.duration.min(
self.start_position +
self.playback_started.map_or(
Duration::ZERO,
|ts| Instant::now() - ts,
)
)
}
/// Computes the position as a fraction of the song duration
///
/// 0.0 represents the beginning of the song, while 1.0 represents the end. See
/// [`position()`] for more information.
pub fn position_percent(&self) -> f32 {
// nightly: self.position().div_duration_f32(self.duration)
self.position().as_secs_f32() / self.duration.as_secs_f32()
}
}
/// Manually calculate the exact length of a given song
///
/// This is really expensive, and involves decoding and inefficiently counting the number
/// of samples in the song, but produces an exact output. Use sparingly.
fn get_duration_of_song(song: Song) -> Duration {
let sample_rate = song.sample_rate() as u64;
let n_channels = song.channels() as u64;
let n_samples = song.count() as u64; // expensive!
let n_whole_seconds = n_samples / n_channels / sample_rate;
let remaining_samples = n_samples % sample_rate;
let n_nanos = remaining_samples * 1_000_000_000 / sample_rate;
Duration::new(n_whole_seconds, n_nanos as u32)
}
#[derive(Debug)]
pub enum PlayerError {
DecoderError(rodio::decoder::DecoderError),
PlayError(rodio::PlayError),
StreamError(rodio::StreamError),
}
impl fmt::Display for PlayerError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Self::DecoderError(e) => write!(f, "Could not decode the provided song: {}", e),
Self::PlayError(e) => write!(f, "Problem playing to the audio output: {}", e),
Self::StreamError(e) => write!(f, "Problem connecting to the audio output: {}", e),
}
}
}
impl std::error::Error for PlayerError { }