chaos/NTP-Timeturner
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refactor: Use rational numbers for accurate frame rate calculations

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Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
This commit is contained in:
Chris Frankland-Wright 2025-08-02 12:26:17 +01:00
parent b71e13d4c4
commit a1da396874
6 changed files with 41 additions and 17 deletions
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11
src/ui.rs
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@ -19,9 +19,11 @@ use crossterm::{
};
use crate::config::Config;
use get_if_addrs::get_if_addrs;
use crate::sync_logic::{get_jitter_status, get_sync_status, LtcState};
use crate::system;
use get_if_addrs::get_if_addrs;
use num_rational::Ratio;
use num_traits::ToPrimitive;
pub fn start_ui(
@ -82,8 +84,9 @@ pub fn start_ui(
if last_delta_update.elapsed() >= Duration::from_secs(1) {
cached_delta_ms = avg_delta;
if let Some(frame) = &state.lock().unwrap().latest {
let frame_ms = 1000.0 / frame.frame_rate;
cached_delta_frames = ((avg_delta as f64 / frame_ms).round()) as i64;
let delta_ms_ratio = Ratio::new(avg_delta, 1);
let frames_ratio = delta_ms_ratio * frame.frame_rate / Ratio::new(1000, 1);
cached_delta_frames = frames_ratio.round().to_integer();
} else {
cached_delta_frames = 0;
}
@ -104,7 +107,7 @@ pub fn start_ui(
None => "LTC Timecode : …".to_string(),
};
let fr_str = match opt {
Some(f) => format!("Frame Rate : {:.2}fps", f.frame_rate),
Some(f) => format!("Frame Rate : {:.2}fps", f.frame_rate.to_f64().unwrap_or(0.0)),
None => "Frame Rate : …".to_string(),
};