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fix(audio): stabilize loudness normalization and streaming startup behavior

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Improve normalization consistency by separating cache refresh for non-playing tracks, hardening track-id cache lookups, and keeping UI gain state aligned with actual playback. Also reduce startup stalls by preferring non-seekable streaming when format hints are missing and by tuning ALSA/analysis paths to avoid underrun-prone churn.
This commit is contained in:
Maxim Isaev
2026-04-25 22:09:38 +03:00
parent 93b724fc65
commit 86704473ed
14 changed files with 2092 additions and 37 deletions
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src-tauri/patches/cpal-0.15.3/src/host/alsa/mod.rs
+5 -4
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@@ -1063,10 +1063,11 @@ fn set_hw_params_from_format(
hw_params.set_buffer_size(v as alsa::pcm::Frames)?;
}
BufferSize::Default => {
// These values together represent a moderate latency and wakeup interval.
// Without them, we are at the mercy of the device
hw_params.set_period_time_near(25_000, alsa::ValueOr::Nearest)?;
hw_params.set_buffer_time_near(100_000, alsa::ValueOr::Nearest)?;
// Larger buffer than upstream cpal default: after Symphonia seeks or CPU
// spikes (analysis, demux) the mixer needs more margin before ALSA underruns.
// ~40 ms period, ~200 ms total buffer (device may round to nearest supported).
hw_params.set_period_time_near(40_000, alsa::ValueOr::Nearest)?;
hw_params.set_buffer_time_near(200_000, alsa::ValueOr::Nearest)?;
}
}