85 lines
1.8 KiB
Rust
85 lines
1.8 KiB
Rust
//! 音頻播放模組
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use anyhow::Result;
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use std::process::{Command, Stdio};
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use std::io::Write;
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use std::sync::{Arc, Mutex};
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#[derive(Debug, Clone)]
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pub struct AudioPlayer {
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process: Option<std::process::Child>,
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volume: f32,
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muted: bool,
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}
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impl AudioPlayer {
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pub fn new() -> Self {
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Self {
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process: None,
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volume: 1.0,
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muted: false,
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}
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}
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pub fn play(&mut self, path: &str, start_ms: u64) -> Result<()> {
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self.stop()?;
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let start_sec = start_ms as f64 / 1000.0;
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let volume_filter = if self.muted {
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"volume=0".to_string()
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} else {
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format!("volume={}", self.volume)
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};
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let mut cmd = Command::new("ffplay");
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cmd.args([
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"-nodisp",
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"-autoexit",
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"-ss", &format!("{}", start_sec),
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"-af", &volume_filter,
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"-i", path,
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])
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.stdin(Stdio::null())
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.stdout(Stdio::null())
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.stderr(Stdio::null())
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.spawn()?;
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self.process = Some(cmd);
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Ok(())
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}
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pub fn stop(&mut self) -> Result<()> {
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if let Some(mut child) = self.process.take() {
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let _ = child.kill();
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let _ = child.wait();
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}
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Ok(())
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}
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pub fn set_volume(&mut self, volume: f32) {
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self.volume = volume.clamp(0.0, 1.0);
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if !self.muted {
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self.restart_with_volume()?;
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}
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}
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pub fn toggle_mute(&mut self) -> bool {
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self.muted = !self.muted;
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self.muted
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}
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pub fn is_muted(&self) -> bool {
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self.muted
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}
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fn restart_with_volume(&mut self) -> Result<()> {
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Ok(())
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}
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}
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impl Drop for AudioPlayer {
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fn drop(&mut self) {
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let _ = self.stop();
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}
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}
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