501 lines
22 KiB
Rust
501 lines
22 KiB
Rust
use crate::upstream_media_runtime::UpstreamMediaRuntime;
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use anyhow::{Context, Result};
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use chrono::Utc;
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use lesavka_common::lesavka::{
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CalibrationAction, CalibrationRequest, CalibrationState as ProtoCalibrationState,
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};
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use std::path::PathBuf;
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use std::sync::{Arc, Mutex};
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mod mode_env;
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mod profile_offsets;
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use mode_env::{current_uvc_mode, lookup_mode_offset_us};
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pub use profile_offsets::{
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FACTORY_HEVC_AUDIO_MODE_OFFSETS_US, FACTORY_HEVC_AUDIO_OFFSET_US,
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FACTORY_HEVC_OPUS_AUDIO_MODE_OFFSETS_US, FACTORY_HEVC_OPUS_AUDIO_OFFSET_US,
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FACTORY_HEVC_OPUS_VIDEO_MODE_OFFSETS_US, FACTORY_HEVC_OPUS_VIDEO_OFFSET_US,
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FACTORY_HEVC_PCM_AUDIO_MODE_OFFSETS_US, FACTORY_HEVC_PCM_AUDIO_OFFSET_US,
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FACTORY_HEVC_PCM_VIDEO_MODE_OFFSETS_US, FACTORY_HEVC_PCM_VIDEO_OFFSET_US,
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FACTORY_HEVC_VIDEO_MODE_OFFSETS_US, FACTORY_HEVC_VIDEO_OFFSET_1280X720_20_US,
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FACTORY_HEVC_VIDEO_OFFSET_1280X720_30_US, FACTORY_HEVC_VIDEO_OFFSET_1920X1080_20_US,
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FACTORY_HEVC_VIDEO_OFFSET_1920X1080_30_US, FACTORY_HEVC_VIDEO_OFFSET_US,
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FACTORY_MJPEG_AUDIO_MODE_OFFSETS_US, FACTORY_MJPEG_AUDIO_OFFSET_US,
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FACTORY_MJPEG_OPUS_AUDIO_MODE_OFFSETS_US, FACTORY_MJPEG_OPUS_AUDIO_OFFSET_US,
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FACTORY_MJPEG_OPUS_VIDEO_MODE_OFFSETS_US, FACTORY_MJPEG_OPUS_VIDEO_OFFSET_1280X720_20_US,
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FACTORY_MJPEG_OPUS_VIDEO_OFFSET_1280X720_30_US,
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FACTORY_MJPEG_OPUS_VIDEO_OFFSET_1920X1080_20_US,
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FACTORY_MJPEG_OPUS_VIDEO_OFFSET_1920X1080_30_US, FACTORY_MJPEG_OPUS_VIDEO_OFFSET_US,
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FACTORY_MJPEG_PCM_AUDIO_MODE_OFFSETS_US, FACTORY_MJPEG_PCM_AUDIO_OFFSET_US,
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FACTORY_MJPEG_PCM_VIDEO_MODE_OFFSETS_US, FACTORY_MJPEG_PCM_VIDEO_OFFSET_US,
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FACTORY_MJPEG_VIDEO_MODE_OFFSETS_US, FACTORY_MJPEG_VIDEO_OFFSET_1280X720_20_US,
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FACTORY_MJPEG_VIDEO_OFFSET_1280X720_30_US, FACTORY_MJPEG_VIDEO_OFFSET_1920X1080_20_US,
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FACTORY_MJPEG_VIDEO_OFFSET_1920X1080_30_US, FACTORY_MJPEG_VIDEO_OFFSET_US,
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};
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use profile_offsets::{
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configured_profile_offset_us, current_profile, factory_audio_mode_offsets_us,
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factory_audio_scalar_offset_us, factory_video_mode_offsets_us, factory_video_scalar_offset_us,
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normalize_calibration_profile,
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};
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const LEGACY_FACTORY_MJPEG_AUDIO_OFFSET_US: i64 = -45_000;
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const PREVIOUS_FACTORY_MJPEG_AUDIO_OFFSET_US: i64 = 720_000;
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const PREVIOUS_TUNED_MJPEG_AUDIO_OFFSET_US: i64 = 1_260_000;
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const PREVIOUS_FACTORY_MJPEG_VIDEO_OFFSET_US: i64 = 0;
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const PREVIOUS_DELAYED_FACTORY_MJPEG_VIDEO_OFFSET_US: i64 = 350_000;
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const PREVIOUS_BROWSER_FACTORY_MJPEG_VIDEO_OFFSET_US: i64 = 130_000;
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const PREVIOUS_SCALAR_FACTORY_MJPEG_VIDEO_OFFSET_US: i64 = 170_000;
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const PREVIOUS_OVERSHOT_FACTORY_MJPEG_VIDEO_OFFSET_US: i64 = 1_090_000;
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const FACTORY_CONFIDENCE: &str = "factory";
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const PREVIOUS_OFFSET_LIMIT_US: i64 = 500_000;
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const OFFSET_LIMIT_US: i64 = 1_500_000;
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum CalibrationMedia {
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Audio,
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Video,
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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struct CalibrationSnapshot {
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profile: String,
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factory_audio_offset_us: i64,
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factory_video_offset_us: i64,
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default_audio_offset_us: i64,
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default_video_offset_us: i64,
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active_audio_offset_us: i64,
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active_video_offset_us: i64,
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source: String,
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confidence: String,
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updated_at: String,
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detail: String,
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}
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#[derive(Debug)]
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pub struct CalibrationStore {
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path: PathBuf,
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runtime: Arc<UpstreamMediaRuntime>,
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state: Mutex<CalibrationSnapshot>,
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}
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impl CalibrationStore {
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/// Keeps `load` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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pub fn load(runtime: Arc<UpstreamMediaRuntime>) -> Self {
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let path = calibration_path();
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let state = std::fs::read_to_string(&path)
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.ok()
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.map(|raw| migrate_legacy_snapshot(parse_snapshot(&raw)))
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.unwrap_or_else(snapshot_from_env);
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runtime.set_playout_offsets(state.active_video_offset_us, state.active_audio_offset_us);
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Self {
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path,
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runtime,
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state: Mutex::new(state),
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}
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}
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pub fn current(&self) -> ProtoCalibrationState {
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self.state
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.lock()
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.expect("calibration mutex poisoned")
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.to_proto()
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}
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/// Keeps `apply` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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pub fn apply(&self, request: CalibrationRequest) -> Result<ProtoCalibrationState> {
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let mut state = self.state.lock().expect("calibration mutex poisoned");
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let action =
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CalibrationAction::try_from(request.action).unwrap_or(CalibrationAction::Unspecified);
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match action {
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CalibrationAction::Unspecified => {}
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CalibrationAction::RestoreDefault => {
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state.active_audio_offset_us = state.default_audio_offset_us;
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state.active_video_offset_us = state.default_video_offset_us;
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state.source = "default".to_string();
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state.confidence = "saved-default".to_string();
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state.detail = "restored saved upstream A/V calibration".to_string();
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touch(&mut state);
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}
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CalibrationAction::RestoreFactory => {
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*state = factory_snapshot_from_env(format!(
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"restored release-shipped {} upstream calibration",
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current_profile()
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));
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}
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CalibrationAction::AdjustActive => {
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state.active_audio_offset_us = clamp_offset(
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state
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.active_audio_offset_us
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.saturating_add(request.audio_delta_us),
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);
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state.active_video_offset_us = clamp_offset(
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state
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.active_video_offset_us
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.saturating_add(request.video_delta_us),
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);
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state.source = "manual".to_string();
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state.confidence = "manual".to_string();
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state.detail = format!(
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"manual upstream A/V calibration nudge: audio {:+.1}ms, video {:+.1}ms",
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request.audio_delta_us as f64 / 1000.0,
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request.video_delta_us as f64 / 1000.0
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);
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touch(&mut state);
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}
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CalibrationAction::BlindEstimate => {
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state.active_audio_offset_us = clamp_offset(
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state
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.active_audio_offset_us
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.saturating_add(request.audio_delta_us),
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);
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state.active_video_offset_us = clamp_offset(
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state
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.active_video_offset_us
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.saturating_add(request.video_delta_us),
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);
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state.source = "blind".to_string();
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state.confidence = "estimated".to_string();
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state.detail = if request.note.trim().is_empty() {
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format!(
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"blind estimate applied from relay telemetry: delivery skew {:.1}ms, enqueue skew {:.1}ms",
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request.observed_delivery_skew_ms, request.observed_enqueue_skew_ms
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)
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} else {
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request.note
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};
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touch(&mut state);
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}
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CalibrationAction::SaveActiveAsDefault => {
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state.default_audio_offset_us = state.active_audio_offset_us;
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state.default_video_offset_us = state.active_video_offset_us;
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state.source = "default".to_string();
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state.confidence = "measured".to_string();
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state.detail = "saved current upstream A/V calibration as site default".to_string();
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touch(&mut state);
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}
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}
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self.runtime
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.set_playout_offsets(state.active_video_offset_us, state.active_audio_offset_us);
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persist_snapshot(&self.path, &state)?;
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Ok(state.to_proto())
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}
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/// Keeps `apply_transient_blind_estimate` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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pub fn apply_transient_blind_estimate(
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&self,
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audio_delta_us: i64,
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video_delta_us: i64,
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observed_delivery_skew_ms: f32,
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observed_enqueue_skew_ms: f32,
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note: impl Into<String>,
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) -> ProtoCalibrationState {
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let mut state = self.state.lock().expect("calibration mutex poisoned");
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state.active_audio_offset_us =
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clamp_offset(state.active_audio_offset_us.saturating_add(audio_delta_us));
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state.active_video_offset_us =
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clamp_offset(state.active_video_offset_us.saturating_add(video_delta_us));
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state.source = "blind".to_string();
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state.confidence = "runtime-estimated".to_string();
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let note = note.into();
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state.detail = if note.trim().is_empty() {
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format!(
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"transient blind estimate from relay telemetry: delivery skew {:.1}ms, enqueue skew {:.1}ms",
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observed_delivery_skew_ms, observed_enqueue_skew_ms
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)
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} else {
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note
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};
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touch(&mut state);
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self.runtime
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.set_playout_offsets(state.active_video_offset_us, state.active_audio_offset_us);
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state.to_proto()
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}
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}
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impl CalibrationSnapshot {
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/// Keeps `to_proto` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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fn to_proto(&self) -> ProtoCalibrationState {
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ProtoCalibrationState {
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profile: self.profile.clone(),
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factory_audio_offset_us: self.factory_audio_offset_us,
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factory_video_offset_us: self.factory_video_offset_us,
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default_audio_offset_us: self.default_audio_offset_us,
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default_video_offset_us: self.default_video_offset_us,
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active_audio_offset_us: self.active_audio_offset_us,
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active_video_offset_us: self.active_video_offset_us,
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source: self.source.clone(),
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confidence: self.confidence.clone(),
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updated_at: self.updated_at.clone(),
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detail: self.detail.clone(),
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}
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}
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}
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pub fn calibration_path() -> PathBuf {
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std::env::var("LESAVKA_CALIBRATION_PATH")
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.ok()
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.filter(|path| !path.trim().is_empty())
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.map(PathBuf::from)
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.unwrap_or_else(|| PathBuf::from("/var/lib/lesavka/calibration.toml"))
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}
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/// Resolve the startup playout offset for the current calibration profile.
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///
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/// Inputs: media kind plus process env. Output: microsecond offset selected
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/// from profile-specific env or factory maps. Why: the upstream runtime starts
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/// before the persisted calibration store is loaded, so it still needs the same
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/// camera/audio profile fork used by the durable calibration state.
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pub fn configured_playout_offset_us(media: CalibrationMedia) -> i64 {
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let mode = current_uvc_mode();
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let profile = current_profile();
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let (media_name, factory_map, factory_scalar, stale) = match media {
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CalibrationMedia::Audio => (
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"AUDIO",
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factory_audio_mode_offsets_us(&profile),
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factory_audio_scalar_offset_us(&profile),
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is_stale_audio_offset_us as fn(i64) -> bool,
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),
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CalibrationMedia::Video => (
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"VIDEO",
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factory_video_mode_offsets_us(&profile),
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factory_video_scalar_offset_us(&profile),
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is_stale_video_offset_us as fn(i64) -> bool,
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),
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};
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configured_profile_offset_us(&profile, media_name, mode.as_deref(), stale)
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.or_else(|| {
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mode.as_deref()
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.and_then(|mode| lookup_mode_offset_us(factory_map, mode))
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})
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.unwrap_or(factory_scalar)
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}
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/// Keeps `snapshot_from_env` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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fn snapshot_from_env() -> CalibrationSnapshot {
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let mode = current_uvc_mode();
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let profile = current_profile();
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let factory_audio_mode_offsets_us = factory_audio_mode_offsets_us(&profile);
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let factory_video_mode_offsets_us = factory_video_mode_offsets_us(&profile);
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let factory_audio_scalar_offset_us = factory_audio_scalar_offset_us(&profile);
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let factory_video_scalar_offset_us = factory_video_scalar_offset_us(&profile);
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let factory_audio_offset_us = mode
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.as_deref()
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.and_then(|mode| lookup_mode_offset_us(factory_audio_mode_offsets_us, mode))
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.unwrap_or(factory_audio_scalar_offset_us);
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let factory_video_offset_us = mode
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.as_deref()
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.and_then(|mode| lookup_mode_offset_us(factory_video_mode_offsets_us, mode))
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.unwrap_or(factory_video_scalar_offset_us);
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let env_audio =
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configured_profile_offset_us(&profile, "AUDIO", mode.as_deref(), is_stale_audio_offset_us);
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let env_video =
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configured_profile_offset_us(&profile, "VIDEO", mode.as_deref(), is_stale_video_offset_us);
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let default_audio_offset_us = env_audio.unwrap_or(factory_audio_offset_us);
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let default_video_offset_us = env_video.unwrap_or(factory_video_offset_us);
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let source = if env_audio.is_some() || env_video.is_some() {
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"env".to_string()
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} else {
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"factory".to_string()
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};
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let confidence = if source == "factory" {
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FACTORY_CONFIDENCE.to_string()
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} else {
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"configured".to_string()
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};
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CalibrationSnapshot {
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profile,
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factory_audio_offset_us,
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factory_video_offset_us,
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default_audio_offset_us,
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default_video_offset_us,
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active_audio_offset_us: default_audio_offset_us,
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active_video_offset_us: default_video_offset_us,
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source,
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confidence,
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updated_at: Utc::now().to_rfc3339(),
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detail: "loaded upstream A/V calibration defaults".to_string(),
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}
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}
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/// Keeps `parse_snapshot` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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fn parse_snapshot(raw: &str) -> CalibrationSnapshot {
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let fallback = snapshot_from_env();
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let value = |key: &str| -> Option<String> {
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raw.lines().find_map(|line| {
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let trimmed = line.trim();
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let (left, right) = trimmed.split_once('=')?;
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(left.trim() == key).then(|| right.trim().trim_matches('"').to_string())
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})
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};
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let number = |key: &str, default: i64| -> i64 {
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value(key)
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.and_then(|raw| raw.parse::<i64>().ok())
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.map(clamp_offset)
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.unwrap_or(default)
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};
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CalibrationSnapshot {
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profile: value("profile").unwrap_or(fallback.profile),
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factory_audio_offset_us: fallback.factory_audio_offset_us,
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factory_video_offset_us: fallback.factory_video_offset_us,
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default_audio_offset_us: number(
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"default_audio_offset_us",
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fallback.default_audio_offset_us,
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),
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default_video_offset_us: number(
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"default_video_offset_us",
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fallback.default_video_offset_us,
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),
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active_audio_offset_us: number("active_audio_offset_us", fallback.active_audio_offset_us),
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active_video_offset_us: number("active_video_offset_us", fallback.active_video_offset_us),
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source: value("source").unwrap_or(fallback.source),
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confidence: value("confidence").unwrap_or(fallback.confidence),
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updated_at: value("updated_at").unwrap_or(fallback.updated_at),
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detail: value("detail").unwrap_or(fallback.detail),
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}
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}
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/// Keeps `migrate_legacy_snapshot` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
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/// Inputs are the typed parameters; output is the return value or side effect.
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fn migrate_legacy_snapshot(mut state: CalibrationSnapshot) -> CalibrationSnapshot {
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let current_profile = current_profile();
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let stored_profile = normalize_calibration_profile(&state.profile);
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let source_allows_migration = matches!(state.source.as_str(), "factory" | "env");
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let confidence_allows_migration = matches!(state.confidence.as_str(), "factory" | "configured");
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let detail_allows_profile_migration = state
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.detail
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.contains("loaded upstream A/V calibration defaults")
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|| state.detail.contains("restored release-shipped");
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if stored_profile != current_profile
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&& source_allows_migration
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&& confidence_allows_migration
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&& detail_allows_profile_migration
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{
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let mut replacement = factory_snapshot_from_env(format!(
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"migrated factory upstream A/V calibration profile from {} to {}",
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stored_profile, current_profile
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));
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replacement.detail = format!(
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"migrated factory upstream A/V calibration profile from {} to {}",
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stored_profile, replacement.profile
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);
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return replacement;
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}
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let clamped_previous_baseline = matches!(
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state.default_audio_offset_us,
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PREVIOUS_OFFSET_LIMIT_US | OFFSET_LIMIT_US
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) && state
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.detail
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.contains("loaded upstream A/V calibration defaults");
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let untouched_legacy_audio = (is_stale_audio_offset_us(state.default_audio_offset_us)
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|| state.default_audio_offset_us == state.factory_audio_offset_us
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|| clamped_previous_baseline)
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&& state.active_audio_offset_us == state.default_audio_offset_us;
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let untouched_legacy_video = is_stale_video_offset_us(state.default_video_offset_us)
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&& state.active_video_offset_us == state.default_video_offset_us;
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if stored_profile == current_profile
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&& source_allows_migration
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&& confidence_allows_migration
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&& untouched_legacy_audio
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&& untouched_legacy_video
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{
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let old_audio_offset_us = state.default_audio_offset_us;
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let old_video_offset_us = state.default_video_offset_us;
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state.default_audio_offset_us = state.factory_audio_offset_us;
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state.active_audio_offset_us = state.factory_audio_offset_us;
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state.default_video_offset_us = state.factory_video_offset_us;
|
|
state.active_video_offset_us = state.factory_video_offset_us;
|
|
state.profile = current_profile;
|
|
state.source = "factory".to_string();
|
|
state.confidence = FACTORY_CONFIDENCE.to_string();
|
|
state.detail = format!(
|
|
"migrated legacy MJPEG upstream A/V baseline from audio {:+.1}ms/video {:+.1}ms to audio {:+.1}ms/video {:+.1}ms",
|
|
old_audio_offset_us as f64 / 1000.0,
|
|
old_video_offset_us as f64 / 1000.0,
|
|
state.factory_audio_offset_us as f64 / 1000.0,
|
|
state.factory_video_offset_us as f64 / 1000.0
|
|
);
|
|
touch(&mut state);
|
|
}
|
|
state
|
|
}
|
|
|
|
/// Builds a persisted calibration snapshot from the current profile factory.
|
|
///
|
|
/// Inputs: human-readable audit detail. Output: calibration state whose active
|
|
/// and default offsets are reset to the profile-specific factory values.
|
|
/// Why: restore/migration paths must not accidentally revive stale MJPEG
|
|
/// offsets after the server is running an HEVC decode-to-MJPEG profile.
|
|
fn factory_snapshot_from_env(detail: impl Into<String>) -> CalibrationSnapshot {
|
|
let mut state = snapshot_from_env();
|
|
state.default_audio_offset_us = state.factory_audio_offset_us;
|
|
state.default_video_offset_us = state.factory_video_offset_us;
|
|
state.active_audio_offset_us = state.factory_audio_offset_us;
|
|
state.active_video_offset_us = state.factory_video_offset_us;
|
|
state.source = "factory".to_string();
|
|
state.confidence = FACTORY_CONFIDENCE.to_string();
|
|
state.detail = detail.into();
|
|
touch(&mut state);
|
|
state
|
|
}
|
|
|
|
/// Keeps `persist_snapshot` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
|
|
/// Inputs are the typed parameters; output is the return value or side effect.
|
|
fn persist_snapshot(path: &PathBuf, state: &CalibrationSnapshot) -> Result<()> {
|
|
if let Some(parent) = path.parent() {
|
|
std::fs::create_dir_all(parent)
|
|
.with_context(|| format!("creating calibration directory {}", parent.display()))?;
|
|
}
|
|
std::fs::write(path, serialize_snapshot(state))
|
|
.with_context(|| format!("writing calibration state {}", path.display()))
|
|
}
|
|
|
|
/// Keeps `serialize_snapshot` explicit because it sits on calibration state, where persisted and factory offsets must stay auditable.
|
|
/// Inputs are the typed parameters; output is the return value or side effect.
|
|
fn serialize_snapshot(state: &CalibrationSnapshot) -> String {
|
|
format!(
|
|
"profile=\"{}\"\ndefault_audio_offset_us={}\ndefault_video_offset_us={}\nactive_audio_offset_us={}\nactive_video_offset_us={}\nsource=\"{}\"\nconfidence=\"{}\"\nupdated_at=\"{}\"\ndetail=\"{}\"\n",
|
|
escape_value(&state.profile),
|
|
state.default_audio_offset_us,
|
|
state.default_video_offset_us,
|
|
state.active_audio_offset_us,
|
|
state.active_video_offset_us,
|
|
escape_value(&state.source),
|
|
escape_value(&state.confidence),
|
|
escape_value(&state.updated_at),
|
|
escape_value(&state.detail),
|
|
)
|
|
}
|
|
|
|
fn touch(state: &mut CalibrationSnapshot) {
|
|
state.updated_at = Utc::now().to_rfc3339();
|
|
}
|
|
|
|
fn is_stale_audio_offset_us(offset: i64) -> bool {
|
|
matches!(
|
|
offset,
|
|
LEGACY_FACTORY_MJPEG_AUDIO_OFFSET_US
|
|
| PREVIOUS_FACTORY_MJPEG_AUDIO_OFFSET_US
|
|
| PREVIOUS_TUNED_MJPEG_AUDIO_OFFSET_US
|
|
)
|
|
}
|
|
|
|
fn is_stale_video_offset_us(offset: i64) -> bool {
|
|
matches!(
|
|
offset,
|
|
PREVIOUS_FACTORY_MJPEG_VIDEO_OFFSET_US
|
|
| PREVIOUS_DELAYED_FACTORY_MJPEG_VIDEO_OFFSET_US
|
|
| PREVIOUS_BROWSER_FACTORY_MJPEG_VIDEO_OFFSET_US
|
|
| PREVIOUS_SCALAR_FACTORY_MJPEG_VIDEO_OFFSET_US
|
|
| PREVIOUS_OVERSHOT_FACTORY_MJPEG_VIDEO_OFFSET_US
|
|
)
|
|
}
|
|
|
|
fn clamp_offset(value: i64) -> i64 {
|
|
value.clamp(-OFFSET_LIMIT_US, OFFSET_LIMIT_US)
|
|
}
|
|
|
|
fn escape_value(value: &str) -> String {
|
|
value.replace('\\', "\\\\").replace('"', "\\\"")
|
|
}
|
|
|
|
#[cfg(test)]
|
|
#[path = "calibration/tests/mod.rs"]
|
|
mod tests;
|