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Some clean up

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This commit is contained in:
Konstantin Seiler 2020-02-02 11:07:05 +11:00
parent 5784b4652c
commit 9eef690a22
3 changed files with 81 additions and 268 deletions
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17
connect/src/spirc.rs
View file

@ -546,14 +546,10 @@ impl SpircTask {
PlayerEvent::EndOfTrack { .. } => self.handle_end_of_track(),
PlayerEvent::Loading { .. } => (),
PlayerEvent::Playing { position_ms, .. } => {
let new_nominal_start_time =
self.now_ms() - position_ms as i64;
let new_nominal_start_time = self.now_ms() - position_ms as i64;
match self.play_status {
SpircPlayStatus::Playing { nominal_start_time } => {
if (nominal_start_time - new_nominal_start_time)
.abs()
> 100
{
if (nominal_start_time - new_nominal_start_time).abs() > 100 {
self.update_state_position(position_ms);
self.notify(None);
self.play_status = SpircPlayStatus::Playing {
@ -611,14 +607,17 @@ impl SpircTask {
self.play_status = SpircPlayStatus::Stopped;
}
},
PlayerEvent::TimeToPreloadNextTrack {..} => match self.play_status {
SpircPlayStatus::Paused {..}|SpircPlayStatus::Playing {..}| SpircPlayStatus::LoadingPause{..}|SpircPlayStatus::LoadingPlay {..} => {
PlayerEvent::TimeToPreloadNextTrack { .. } => match self.play_status {
SpircPlayStatus::Paused { .. }
| SpircPlayStatus::Playing { .. }
| SpircPlayStatus::LoadingPause { .. }
| SpircPlayStatus::LoadingPlay { .. } => {
if let Some(track_id) = self.preview_next_track() {
self.player.preload(track_id);
}
}
SpircPlayStatus::Stopped => (),
}
},
_ => (),
}
}

53
examples/play.rs
View file

@ -7,53 +7,8 @@ use librespot::core::session::Session;
use librespot::core::spotify_id::SpotifyId;
use librespot::playback::config::PlayerConfig;
use futures::stream::Stream;
use futures::{Async, Future, Poll};
use librespot::playback::audio_backend;
use librespot::playback::player::{Player, PlayerEvent, PlayerEventChannel};
pub struct SingleTrackPlayer {
play_request_id: u64,
event_channel: PlayerEventChannel,
}
impl SingleTrackPlayer {
pub fn new(ref mut player: Player, track_id: SpotifyId) -> SingleTrackPlayer {
let event_channel = player.get_player_event_channel();
let play_request_id = player.load(track_id, true, 0);
SingleTrackPlayer {
play_request_id,
event_channel,
}
}
}
impl Future for SingleTrackPlayer {
type Item = ();
type Error = ();
fn poll(&mut self) -> Poll<(), ()> {
loop {
match self.event_channel.poll().unwrap() {
Async::NotReady => return Ok(Async::NotReady),
Async::Ready(None) => return Ok(Async::Ready(())),
Async::Ready(Some(event)) => match event {
PlayerEvent::EndOfTrack {
play_request_id, ..
}
| PlayerEvent::Stopped {
play_request_id, ..
} => {
if play_request_id == self.play_request_id {
return Ok(Async::Ready(()));
}
}
_ => (),
},
}
}
}
}
use librespot::playback::player::Player;
fn main() {
let mut core = Core::new().unwrap();
@ -79,12 +34,14 @@ fn main() {
.run(Session::connect(session_config, credentials, None, handle))
.unwrap();
let (player, _) = Player::new(player_config, session.clone(), None, move || {
let (mut player, _) = Player::new(player_config, session.clone(), None, move || {
(backend)(None)
});
player.load(track, true, 0);
println!("Playing...");
core.run(SingleTrackPlayer::new(player, track)).unwrap();
core.run(player.get_end_of_track_future()).unwrap();
println!("Done");
}

279
playback/src/player.rs
View file

@ -247,10 +247,8 @@ impl Player {
play_request_id
}
pub fn preload(&mut self, track_id: SpotifyId) {
self.command(PlayerCommand::Preload {
track_id,
});
pub fn preload(&self, track_id: SpotifyId) {
self.command(PlayerCommand::Preload { track_id });
}
pub fn play(&self) {
@ -275,6 +273,19 @@ impl Player {
event_receiver
}
pub fn get_end_of_track_future(&self) -> Box<dyn Future<Item = (), Error = ()>> {
let result = self
.get_player_event_channel()
.filter(|event| match event {
PlayerEvent::EndOfTrack { .. } | PlayerEvent::Stopped { .. } => true,
_ => false,
})
.into_future()
.map_err(|_| ())
.map(|_| ());
Box::new(result)
}
pub fn emit_volume_set_event(&self, volume: u16) {
self.command(PlayerCommand::EmitVolumeSetEvent(volume));
}
@ -299,7 +310,7 @@ struct PlayerLoadedTrackData {
stream_loader_controller: StreamLoaderController,
bytes_per_second: usize,
duration_ms: u32,
stream_position: u64,
stream_position_pcm: u64,
}
enum PlayerPreload {
@ -332,7 +343,7 @@ enum PlayerState {
stream_loader_controller: StreamLoaderController,
bytes_per_second: usize,
duration_ms: u32,
stream_position: u64,
stream_position_pcm: u64,
suggested_to_preload_next_track: bool,
},
Playing {
@ -343,7 +354,7 @@ enum PlayerState {
stream_loader_controller: StreamLoaderController,
bytes_per_second: usize,
duration_ms: u32,
stream_position: u64,
stream_position_pcm: u64,
reported_nominal_start_time: Option<Instant>,
suggested_to_preload_next_track: bool,
},
@ -430,7 +441,7 @@ impl PlayerState {
stream_loader_controller,
duration_ms,
bytes_per_second,
stream_position,
stream_position_pcm,
suggested_to_preload_next_track,
} => {
*self = Playing {
@ -441,7 +452,7 @@ impl PlayerState {
stream_loader_controller,
duration_ms,
bytes_per_second,
stream_position,
stream_position_pcm,
reported_nominal_start_time: None,
suggested_to_preload_next_track,
};
@ -461,7 +472,7 @@ impl PlayerState {
stream_loader_controller,
duration_ms,
bytes_per_second,
stream_position,
stream_position_pcm,
reported_nominal_start_time: _,
suggested_to_preload_next_track,
} => {
@ -473,7 +484,7 @@ impl PlayerState {
stream_loader_controller,
duration_ms,
bytes_per_second,
stream_position,
stream_position_pcm,
suggested_to_preload_next_track,
};
}
@ -526,7 +537,7 @@ impl PlayerTrackLoader {
}
}
fn load_track(&self, spotify_id: SpotifyId, position: u64) -> Option<PlayerLoadedTrackData> {
fn load_track(&self, spotify_id: SpotifyId, position_ms: u32) -> Option<PlayerLoadedTrackData> {
let audio = match AudioItem::get_audio_item(&self.session, spotify_id).wait() {
Ok(audio) => audio,
Err(_) => {
@ -580,7 +591,7 @@ impl PlayerTrackLoader {
};
let bytes_per_second = self.stream_data_rate(*format);
let play_from_beginning = position == 0;
let play_from_beginning = position_ms == 0;
let key = self.session.audio_key().request(spotify_id, file_id);
let encrypted_file = AudioFile::open(
@ -632,14 +643,14 @@ impl PlayerTrackLoader {
let mut decoder = VorbisDecoder::new(audio_file).unwrap();
if position != 0 {
match decoder.seek(position as i64) {
if position_ms != 0 {
match decoder.seek(position_ms as i64) {
Ok(_) => (),
Err(err) => error!("Vorbis error: {:?}", err),
}
stream_loader_controller.set_stream_mode();
}
let stream_position = position * 441 / 10;
let stream_position_pcm = PlayerInternal::position_ms_to_pcm(position_ms);
info!("<{}> ({} ms) loaded", audio.name, audio.duration);
Some(PlayerLoadedTrackData {
decoder,
@ -647,7 +658,7 @@ impl PlayerTrackLoader {
stream_loader_controller,
bytes_per_second,
duration_ms,
stream_position,
stream_position_pcm,
})
}
}
@ -736,7 +747,7 @@ impl Future for PlayerInternal {
play_request_id,
ref mut decoder,
normalisation_factor,
ref mut stream_position,
ref mut stream_position_pcm,
ref mut reported_nominal_start_time,
duration_ms,
..
@ -746,17 +757,18 @@ impl Future for PlayerInternal {
let packet = decoder.next_packet().expect("Vorbis error");
if let Some(ref packet) = packet {
*stream_position = *stream_position + (packet.data().len() / 2) as u64;
let stream_position_seconds = *stream_position / 44100;
if stream_position_seconds != last_printed_stream_position_for_debug {
*stream_position_pcm =
*stream_position_pcm + (packet.data().len() / 2) as u64;
let stream_position_millis = Self::position_pcm_to_ms(*stream_position_pcm);
if stream_position_millis / 1000 != last_printed_stream_position_for_debug {
trace!(
"Stream position: {} ({} seconds)",
*stream_position,
stream_position_seconds
*stream_position_pcm,
stream_position_millis / 1000
);
last_printed_stream_position_for_debug = stream_position_seconds;
last_printed_stream_position_for_debug = stream_position_millis / 1000;
}
let stream_position_millis = *stream_position * 10 / 441;
let notify_about_position = match *reported_nominal_start_time {
None => true,
@ -800,7 +812,7 @@ impl Future for PlayerInternal {
track_id,
play_request_id,
duration_ms,
stream_position,
stream_position_pcm,
ref mut stream_loader_controller,
ref mut suggested_to_preload_next_track,
..
@ -809,13 +821,13 @@ impl Future for PlayerInternal {
track_id,
play_request_id,
duration_ms,
stream_position,
stream_position_pcm,
ref mut stream_loader_controller,
ref mut suggested_to_preload_next_track,
..
} = self.state
{
let stream_position_millis = stream_position * 10 / 441;
let stream_position_millis = Self::position_pcm_to_ms(stream_position_pcm);
if (!*suggested_to_preload_next_track)
&& ((duration_ms as i64 - stream_position_millis as i64)
< PRELOAD_NEXT_TRACK_BEFORE_END_DURATION_MS as i64)
@ -841,6 +853,14 @@ impl Future for PlayerInternal {
}
impl PlayerInternal {
fn position_pcm_to_ms(position_pcm: u64) -> u32 {
(position_pcm * 10 / 441) as u32
}
fn position_ms_to_pcm(position_ms: u32) -> u64 {
position_ms as u64 * 441 / 10
}
fn start_sink(&mut self) {
match self.sink.start() {
Ok(()) => self.sink_running = true,
@ -939,7 +959,7 @@ impl PlayerInternal {
loaded_track: PlayerLoadedTrackData,
start_playback: bool,
) {
let position_ms = (loaded_track.stream_position * 10 / 441) as u32;
let position_ms = Self::position_pcm_to_ms(loaded_track.stream_position_pcm);
match self.state {
PlayerState::Playing {
@ -984,7 +1004,7 @@ impl PlayerInternal {
stream_loader_controller: loaded_track.stream_loader_controller,
duration_ms: loaded_track.duration_ms,
bytes_per_second: loaded_track.bytes_per_second,
stream_position: loaded_track.stream_position,
stream_position_pcm: loaded_track.stream_position_pcm,
reported_nominal_start_time: Some(
Instant::now() - Duration::from_millis(position_ms as u64),
),
@ -999,7 +1019,7 @@ impl PlayerInternal {
stream_loader_controller: loaded_track.stream_loader_controller,
duration_ms: loaded_track.duration_ms,
bytes_per_second: loaded_track.bytes_per_second,
stream_position: loaded_track.stream_position,
stream_position_pcm: loaded_track.stream_position_pcm,
suggested_to_preload_next_track: false,
};
@ -1102,8 +1122,7 @@ impl PlayerInternal {
self.preload = PlayerPreload::None;
let loader = loader
.or_else(|| Some(self.load_track_threaded(track_id, position_ms as u64)));
let loader = loader.or_else(|| Some(self.load_track(track_id, position_ms)));
let loader = loader.unwrap();
self.state = PlayerState::Loading {
@ -1130,28 +1149,28 @@ impl PlayerInternal {
}
}
if let PlayerPreload::None = self.preload {
let loader = self.load_track_threaded(track_id, 0);
let loader = self.load_track(track_id, 0);
self.preload = PlayerPreload::Loading { track_id, loader }
}
}
PlayerCommand::Seek(position) => {
PlayerCommand::Seek(position_ms) => {
if let Some(stream_loader_controller) = self.state.stream_loader_controller() {
stream_loader_controller.set_random_access_mode();
}
if let Some(decoder) = self.state.decoder() {
match decoder.seek(position as i64) {
match decoder.seek(position_ms as i64) {
Ok(_) => {
if let PlayerState::Playing {
ref mut stream_position,
ref mut stream_position_pcm,
..
}
| PlayerState::Paused {
ref mut stream_position,
ref mut stream_position_pcm,
..
} = self.state
{
*stream_position = position as u64 * 441 / 10;
*stream_position_pcm = Self::position_ms_to_pcm(position_ms);
}
}
Err(err) => error!("Vorbis error: {:?}", err),
@ -1176,11 +1195,11 @@ impl PlayerInternal {
} = self.state
{
*reported_nominal_start_time =
Some(Instant::now() - Duration::from_millis(position as u64));
Some(Instant::now() - Duration::from_millis(position_ms as u64));
self.send_event(PlayerEvent::Playing {
track_id,
play_request_id,
position_ms: position,
position_ms: position_ms,
duration_ms,
});
}
@ -1194,7 +1213,7 @@ impl PlayerInternal {
self.send_event(PlayerEvent::Paused {
track_id,
play_request_id,
position_ms: position,
position_ms: position_ms,
duration_ms,
});
}
@ -1204,13 +1223,13 @@ impl PlayerInternal {
if let PlayerState::Paused {
track_id,
play_request_id,
stream_position,
stream_position_pcm,
..
} = self.state
{
self.state.paused_to_playing();
let position_ms = (stream_position * 10 / 441) as u32;
let position_ms = Self::position_pcm_to_ms(stream_position_pcm);
self.send_event(PlayerEvent::Started {
track_id,
play_request_id,
@ -1226,7 +1245,7 @@ impl PlayerInternal {
if let PlayerState::Playing {
track_id,
play_request_id,
stream_position,
stream_position_pcm,
duration_ms,
..
} = self.state
@ -1234,7 +1253,7 @@ impl PlayerInternal {
self.state.playing_to_paused();
self.stop_sink_if_running();
let position_ms = (stream_position * 10 / 441) as u32;
let position_ms = Self::position_pcm_to_ms(stream_position_pcm);
self.send_event(PlayerEvent::Paused {
track_id,
play_request_id,
@ -1268,48 +1287,10 @@ impl PlayerInternal {
}
}
// fn find_available_alternative<'a>(&self, audio: &'a AudioItem) -> Option<Cow<'a, AudioItem>> {
// if audio.available {
// Some(Cow::Borrowed(audio))
// } else {
// if let Some(alternatives) = &audio.alternatives {
// let alternatives = alternatives
// .iter()
// .map(|alt_id| AudioItem::get_audio_item(&self.session, *alt_id));
// let alternatives = future::join_all(alternatives).wait().unwrap();
// alternatives
// .into_iter()
// .find(|alt| alt.available)
// .map(Cow::Owned)
// } else {
// None
// }
// }
// }
// fn stream_data_rate(&self, format: FileFormat) -> usize {
// match format {
// FileFormat::OGG_VORBIS_96 => 12 * 1024,
// FileFormat::OGG_VORBIS_160 => 20 * 1024,
// FileFormat::OGG_VORBIS_320 => 40 * 1024,
// FileFormat::MP3_256 => 32 * 1024,
// FileFormat::MP3_320 => 40 * 1024,
// FileFormat::MP3_160 => 20 * 1024,
// FileFormat::MP3_96 => 12 * 1024,
// FileFormat::MP3_160_ENC => 20 * 1024,
// FileFormat::MP4_128_DUAL => 16 * 1024,
// FileFormat::OTHER3 => 40 * 1024, // better some high guess than nothing
// FileFormat::AAC_160 => 20 * 1024,
// FileFormat::AAC_320 => 40 * 1024,
// FileFormat::MP4_128 => 16 * 1024,
// FileFormat::OTHER5 => 40 * 1024, // better some high guess than nothing
// }
// }
fn load_track_threaded(
fn load_track(
&self,
spotify_id: SpotifyId,
position: u64,
position_ms: u32,
) -> Box<dyn Future<Item = PlayerLoadedTrackData, Error = ()>> {
// This method creates a future that returns the loaded stream and associated info.
// Ideally all work should be done using asynchronous code. However, seek() on the
@ -1326,7 +1307,7 @@ impl PlayerInternal {
std::thread::spawn(move || {
loader
.load_track(spotify_id, position)
.load_track(spotify_id, position_ms)
.and_then(move |data| {
let _ = result_tx.send(data);
Some(())
@ -1336,130 +1317,6 @@ impl PlayerInternal {
Box::new(result_rx.map_err(|_| ()))
}
// fn load_track(
// &self,
// spotify_id: SpotifyId,
// position: u64,
// ) -> Option<(Decoder, f32, StreamLoaderController, usize, u64)> {
// let audio = match AudioItem::get_audio_item(&self.session, spotify_id).wait() {
// Ok(audio) => audio,
// Err(_) => {
// error!("Unable to load audio item.");
// return None;
// }
// };
//
// info!("Loading <{}> with Spotify URI <{}>", audio.name, audio.uri);
//
// let audio = match self.find_available_alternative(&audio) {
// Some(audio) => audio,
// None => {
// warn!("<{}> is not available", audio.uri);
// return None;
// }
// };
// // (Most) podcasts seem to support only 96 bit Vorbis, so fall back to it
// let formats = match self.config.bitrate {
// Bitrate::Bitrate96 => [
// FileFormat::OGG_VORBIS_96,
// FileFormat::OGG_VORBIS_160,
// FileFormat::OGG_VORBIS_320,
// ],
// Bitrate::Bitrate160 => [
// FileFormat::OGG_VORBIS_160,
// FileFormat::OGG_VORBIS_96,
// FileFormat::OGG_VORBIS_320,
// ],
// Bitrate::Bitrate320 => [
// FileFormat::OGG_VORBIS_320,
// FileFormat::OGG_VORBIS_160,
// FileFormat::OGG_VORBIS_96,
// ],
// };
// let format = formats
// .iter()
// .find(|format| audio.files.contains_key(format))
// .unwrap();
//
// let file_id = match audio.files.get(&format) {
// Some(&file_id) => file_id,
// None => {
// warn!("<{}> in not available in format {:?}", audio.name, format);
// return None;
// }
// };
//
// let bytes_per_second = self.stream_data_rate(*format);
// let play_from_beginning = position == 0;
//
// let key = self.session.audio_key().request(spotify_id, file_id);
// let encrypted_file = AudioFile::open(
// &self.session,
// file_id,
// bytes_per_second,
// play_from_beginning,
// );
//
// let encrypted_file = match encrypted_file.wait() {
// Ok(encrypted_file) => encrypted_file,
// Err(_) => {
// error!("Unable to load encrypted file.");
// return None;
// }
// };
//
// let mut stream_loader_controller = encrypted_file.get_stream_loader_controller();
//
// if play_from_beginning {
// // No need to seek -> we stream from the beginning
// stream_loader_controller.set_stream_mode();
// } else {
// // we need to seek -> we set stream mode after the initial seek.
// stream_loader_controller.set_random_access_mode();
// }
//
// let key = match key.wait() {
// Ok(key) => key,
// Err(_) => {
// error!("Unable to load decryption key");
// return None;
// }
// };
//
// let mut decrypted_file = AudioDecrypt::new(key, encrypted_file);
//
// let normalisation_factor = match NormalisationData::parse_from_file(&mut decrypted_file) {
// Ok(normalisation_data) => {
// NormalisationData::get_factor(&self.config, normalisation_data)
// }
// Err(_) => {
// warn!("Unable to extract normalisation data, using default value.");
// 1.0 as f32
// }
// };
//
// let audio_file = Subfile::new(decrypted_file, 0xa7);
//
// let mut decoder = VorbisDecoder::new(audio_file).unwrap();
//
// if position != 0 {
// match decoder.seek(position as i64) {
// Ok(_) => (),
// Err(err) => error!("Vorbis error: {:?}", err),
// }
// stream_loader_controller.set_stream_mode();
// }
// let stream_position = position * 441 / 10;
// info!("<{}> loaded", audio.name);
// Some((
// decoder,
// normalisation_factor,
// stream_loader_controller,
// bytes_per_second,
// stream_position,
// ))
// }
fn preload_data_before_playback(&mut self) {
if let PlayerState::Playing {
bytes_per_second,