[feat](trx-wxsat): rename trx-noaa to trx-wxsat with full NOAA APT decode

Rename the crate from trx-noaa to trx-wxsat (weather satellite) across
the entire workspace. Add full NOAA satellite decode support:

- Telemetry frame parsing: extract 16-wedge calibration data from the
  128-line telemetry frames embedded in APT lines
- Radiometric calibration: piecewise-linear LUT built from wedges 1-8
  to correct pixel values against known reference levels
- Channel identification: detect AVHRR sensor channels (VIS, NIR, MIR,
  TIR) from wedge 9 values per APT sub-channel
- Satellite identification: heuristic NOAA-15/18/19 detection from
  channel A/B sensor pairings
- Histogram equalisation: per-channel contrast enhancement for improved
  image output
- WxsatImage now carries satellite name and channel labels in decoded
  message broadcasts

https://claude.ai/code/session_01JA13DHuzuHUL4nSBBRU83f
Signed-off-by: Claude <noreply@anthropic.com>
This commit is contained in:
Claude
2026-03-28 06:37:17 +00:00
committed by Stan Grams
parent e0181c99da
commit d26ef6ca81
17 changed files with 591 additions and 99 deletions
Generated
+11 -11
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@@ -2784,16 +2784,6 @@ dependencies = [
"rustfft",
]
[[package]]
name = "trx-noaa"
version = "0.1.0"
dependencies = [
"image",
"num-complex",
"rustfft",
"trx-core",
]
[[package]]
name = "trx-protocol"
version = "0.1.0"
@@ -2848,11 +2838,11 @@ dependencies = [
"trx-cw",
"trx-decode-log",
"trx-ftx",
"trx-noaa",
"trx-protocol",
"trx-reporting",
"trx-vdes",
"trx-wspr",
"trx-wxsat",
"uuid",
]
@@ -2868,6 +2858,16 @@ dependencies = [
name = "trx-wspr"
version = "0.1.0"
[[package]]
name = "trx-wxsat"
version = "0.1.0"
dependencies = [
"image",
"num-complex",
"rustfft",
"trx-core",
]
[[package]]
name = "typenum"
version = "1.19.0"
+1 -1
View File
@@ -5,7 +5,7 @@
[workspace]
members = [
"src/decoders/trx-ais",
"src/decoders/trx-noaa",
"src/decoders/trx-wxsat",
"src/decoders/trx-aprs",
"src/decoders/trx-cw",
"src/decoders/trx-decode-log",
@@ -3,7 +3,7 @@
# SPDX-License-Identifier: BSD-2-Clause
[package]
name = "trx-noaa"
name = "trx-wxsat"
version.workspace = true
edition = "2021"
@@ -4,7 +4,7 @@
//! APT (Automatic Picture Transmission) demodulator and line decoder.
//!
//! NOAA APT signal chain:
//! Weather satellite APT signal chain:
//! FM-demodulated audio → 2400 Hz AM subcarrier → envelope → 4160 Hz image
//!
//! Frame layout at 4160 Hz (2080 samples = 0.5 s per line, 2 lines/sec):
@@ -38,11 +38,18 @@ const SYNC_THRESHOLD: f32 = 0.15;
const SYNC_SEARCH_LOCKED: usize = 12; // ±samples around expected sync position when locked
const MAX_BAD_SYNC_LINES: u32 = 8; // unlock after this many low-confidence lines
/// A decoded APT line: raw pixel arrays for both image channels.
/// Telemetry block length (samples per channel).
pub const TEL_LEN: usize = 45;
/// A decoded APT line: raw pixel arrays for both image channels plus telemetry.
#[derive(Clone)]
pub struct RawLine {
pub pixels_a: Box<[u8; IMAGE_A_LEN]>,
pub pixels_b: Box<[u8; IMAGE_B_LEN]>,
/// Telemetry block A (45 samples, normalised to 0-255).
pub tel_a: Box<[u8; TEL_LEN]>,
/// Telemetry block B (45 samples, normalised to 0-255).
pub tel_b: Box<[u8; TEL_LEN]>,
pub line_no: u32,
}
@@ -310,9 +317,27 @@ impl SyncTracker {
*p = norm(samples[IMAGE_B_OFFSET + i]);
}
// Extract telemetry blocks (adjacent to image data)
let tel_a_offset = IMAGE_A_OFFSET + IMAGE_A_LEN; // right after image A
let tel_b_offset = IMAGE_B_OFFSET + IMAGE_B_LEN; // right after image B
let mut tel_a = Box::new([0u8; TEL_LEN]);
for (i, p) in tel_a.iter_mut().enumerate() {
if tel_a_offset + i < LINE_SAMPLES {
*p = norm(samples[tel_a_offset + i]);
}
}
let mut tel_b = Box::new([0u8; TEL_LEN]);
for (i, p) in tel_b.iter_mut().enumerate() {
if tel_b_offset + i < LINE_SAMPLES {
*p = norm(samples[tel_b_offset + i]);
}
}
self.lines.push(RawLine {
pixels_a,
pixels_b,
tel_a,
tel_b,
line_no: self.line_no,
});
self.line_no += 1;
@@ -2,7 +2,7 @@
//
// SPDX-License-Identifier: BSD-2-Clause
//! NOAA APT satellite image decoder.
//! Weather satellite APT image decoder.
//!
//! Decodes the Automatic Picture Transmission (APT) format broadcast by
//! NOAA-15 (137.620 MHz), NOAA-18 (137.9125 MHz) and NOAA-19 (137.100 MHz).
@@ -21,8 +21,10 @@
pub mod apt;
mod image_enc;
pub mod telemetry;
use apt::{AptDemod, SyncTracker};
use telemetry::{Satellite, SensorChannel};
/// JPEG encoding quality (0100).
const JPEG_QUALITY: u8 = 85;
@@ -35,9 +37,15 @@ pub struct AptImage {
pub line_count: u32,
/// Millisecond timestamp when the first line was decoded.
pub first_line_ms: i64,
/// Identified satellite, if telemetry was decodable.
pub satellite: Satellite,
/// Detected sensor channel for sub-channel A.
pub sensor_a: SensorChannel,
/// Detected sensor channel for sub-channel B.
pub sensor_b: SensorChannel,
}
/// Top-level NOAA APT decoder.
/// Top-level weather satellite APT decoder.
///
/// Feed audio samples with [`process_samples`] and call [`finalize`] at
/// pass end to retrieve the assembled JPEG.
@@ -87,14 +95,56 @@ impl AptDecoder {
/// Encode all accumulated lines as a JPEG image and return the result.
///
/// Performs telemetry extraction, radiometric calibration (when enough
/// lines are available for a full 128-line telemetry frame), and
/// histogram equalisation before JPEG encoding.
///
/// Returns `None` if no lines have been decoded yet.
/// Does **not** reset the decoder; call [`reset`] afterwards if needed.
pub fn finalize(&self) -> Option<AptImage> {
let jpeg = image_enc::encode_jpeg(&self.sync.lines, JPEG_QUALITY)?;
if self.sync.lines.is_empty() {
return None;
}
// Extract telemetry for calibration and satellite identification
let tel = telemetry::extract_telemetry(&self.sync.lines);
// Clone lines so we can apply calibration without mutating decoder state
let mut lines = self.sync.lines.clone();
let (satellite, sensor_a, sensor_b) = if let Some(ref tf) = tel {
// Apply radiometric calibration using telemetry wedge LUTs
for line in &mut lines {
telemetry::calibrate_line_a(&mut line.pixels_a, &tf.cal_lut_a);
telemetry::calibrate_line_b(&mut line.pixels_b, &tf.cal_lut_b);
}
(tf.satellite, tf.sensor_a, tf.sensor_b)
} else {
(Satellite::Unknown, SensorChannel::Unknown, SensorChannel::Unknown)
};
// Apply histogram equalisation per-channel for contrast enhancement
let mut all_a: Vec<u8> = lines.iter().flat_map(|l| l.pixels_a.iter().copied()).collect();
let mut all_b: Vec<u8> = lines.iter().flat_map(|l| l.pixels_b.iter().copied()).collect();
telemetry::histogram_equalize(&mut all_a);
telemetry::histogram_equalize(&mut all_b);
// Write equalised pixels back
let width_a = apt::IMAGE_A_LEN;
let width_b = apt::IMAGE_B_LEN;
for (i, line) in lines.iter_mut().enumerate() {
line.pixels_a.copy_from_slice(&all_a[i * width_a..(i + 1) * width_a]);
line.pixels_b.copy_from_slice(&all_b[i * width_b..(i + 1) * width_b]);
}
let jpeg = image_enc::encode_jpeg(&lines, JPEG_QUALITY)?;
Some(AptImage {
jpeg,
line_count: self.sync.lines.len() as u32,
line_count: lines.len() as u32,
first_line_ms: self.first_line_ms.unwrap_or_else(now_ms),
satellite,
sensor_a,
sensor_b,
})
}
+398
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@@ -0,0 +1,398 @@
// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
//
// SPDX-License-Identifier: BSD-2-Clause
//! APT telemetry frame parsing, satellite identification, and channel detection.
//!
//! Each APT line contains two 45-sample telemetry blocks (one per channel).
//! The telemetry frame repeats every 128 lines and contains 16 wedges of
//! 8 lines each. Wedges 1-8 carry calibration reference levels, wedge 9
//! carries the channel ID, and wedges 10-15 carry thermal calibration data.
//! Wedge 16 is the "zero modulation" reference (black body equivalent).
use crate::apt::{IMAGE_A_LEN, IMAGE_B_LEN, RawLine};
/// Lines per telemetry frame (128 lines = 16 wedges x 8 lines each).
pub const FRAME_LINES: usize = 128;
/// Lines per wedge.
pub const WEDGE_LINES: usize = 8;
/// Number of wedges in a telemetry frame.
pub const NUM_WEDGES: usize = 16;
/// The 8 calibration step values defined by the APT spec (wedges 1-8).
/// These represent known modulation levels from 1/8 to 8/8 of full scale.
pub const WEDGE_STEPS: [f32; 8] = [
0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875, 1.0,
];
/// NOAA AVHRR sensor channel assignments.
///
/// The NOAA APT format transmits two channels simultaneously. Which sensors
/// are mapped to channel A and B depends on the satellite and illumination.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum SensorChannel {
/// Channel 1: Visible (0.58 - 0.68 um)
Visible1,
/// Channel 2: Near-IR (0.725 - 1.0 um)
NearIr2,
/// Channel 3A: Near-IR (1.58 - 1.64 um) — daytime only on NOAA-15/18/19
NearIr3A,
/// Channel 3B: Mid-IR thermal (3.55 - 3.93 um)
MidIr3B,
/// Channel 4: Thermal IR (10.30 - 11.30 um)
ThermalIr4,
/// Channel 5: Thermal IR (11.50 - 12.50 um) — not on NOAA-15 APT
ThermalIr5,
/// Unknown / could not be determined.
Unknown,
}
impl std::fmt::Display for SensorChannel {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
SensorChannel::Visible1 => write!(f, "1-VIS"),
SensorChannel::NearIr2 => write!(f, "2-NIR"),
SensorChannel::NearIr3A => write!(f, "3A-NIR"),
SensorChannel::MidIr3B => write!(f, "3B-MIR"),
SensorChannel::ThermalIr4 => write!(f, "4-TIR"),
SensorChannel::ThermalIr5 => write!(f, "5-TIR"),
SensorChannel::Unknown => write!(f, "unknown"),
}
}
}
/// Identified NOAA satellite.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Satellite {
Noaa15,
Noaa18,
Noaa19,
Unknown,
}
impl std::fmt::Display for Satellite {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Satellite::Noaa15 => write!(f, "NOAA-15"),
Satellite::Noaa18 => write!(f, "NOAA-18"),
Satellite::Noaa19 => write!(f, "NOAA-19"),
Satellite::Unknown => write!(f, "Unknown"),
}
}
}
/// Wedge 9 channel-ID values for each satellite.
///
/// The channel ID wedge has a distinctive grey level that encodes which
/// AVHRR sensor channel is being transmitted on that APT sub-channel.
/// Values are approximate normalised levels (0.0 - 1.0).
///
/// Reference: NOAA KLM User's Guide, Section 4.2 (APT format).
///
/// Channel A mapping:
/// Wedge 9 ≈ step 1 (1/8) → channel 1 (VIS)
/// Wedge 9 ≈ step 2 (2/8) → channel 2 (NIR)
/// Wedge 9 ≈ step 3 (3/8) → channel 3A (NIR, daytime)
///
/// Channel B mapping:
/// Wedge 9 ≈ step 4 (4/8) → channel 3B (MIR)
/// Wedge 9 ≈ step 5 (5/8) → channel 4 (TIR)
/// Wedge 9 ≈ step 6 (6/8) → channel 5 (TIR)
fn wedge9_to_sensor(normalised: f32) -> SensorChannel {
// Map to nearest step (1/8 increments)
let step = (normalised * 8.0).round() as u8;
match step {
1 => SensorChannel::Visible1,
2 => SensorChannel::NearIr2,
3 => SensorChannel::NearIr3A,
4 => SensorChannel::MidIr3B,
5 => SensorChannel::ThermalIr4,
6 => SensorChannel::ThermalIr5,
_ => SensorChannel::Unknown,
}
}
/// Extracted telemetry data from one complete 128-line frame.
#[derive(Debug, Clone)]
pub struct TelemetryFrame {
/// Mean pixel value for each of the 16 wedges (normalised 0.0 - 1.0).
pub wedge_means_a: [f32; NUM_WEDGES],
pub wedge_means_b: [f32; NUM_WEDGES],
/// Detected sensor channel for sub-channel A.
pub sensor_a: SensorChannel,
/// Detected sensor channel for sub-channel B.
pub sensor_b: SensorChannel,
/// Calibration mapping: maps raw pixel [0,255] → calibrated [0.0, 1.0]
/// using wedges 1-8 as known reference levels.
pub cal_lut_a: [u8; 256],
pub cal_lut_b: [u8; 256],
/// Identified satellite (from channel pairing heuristics).
pub satellite: Satellite,
}
/// Extract telemetry from raw lines, requiring at least one full 128-line frame.
///
/// Picks the best complete frame (highest overall signal quality) and parses
/// wedge values from the telemetry blocks.
pub fn extract_telemetry(lines: &[RawLine]) -> Option<TelemetryFrame> {
if lines.len() < FRAME_LINES {
return None;
}
// Use the middle complete frame for best quality (avoids pass start/end noise)
let num_frames = lines.len() / FRAME_LINES;
let frame_idx = num_frames / 2;
let frame_start = frame_idx * FRAME_LINES;
let frame = &lines[frame_start..frame_start + FRAME_LINES];
// Extract wedge means from telemetry blocks.
// Each wedge spans 8 lines; we average the telemetry samples across those lines.
let mut wedge_means_a = [0.0f32; NUM_WEDGES];
let mut wedge_means_b = [0.0f32; NUM_WEDGES];
for wedge_idx in 0..NUM_WEDGES {
let line_start = wedge_idx * WEDGE_LINES;
let mut sum_a = 0.0f32;
let mut sum_b = 0.0f32;
let mut count = 0u32;
for line_offset in 0..WEDGE_LINES {
let line = &frame[line_start + line_offset];
for &v in line.tel_a.as_ref() {
sum_a += v as f32;
count += 1;
}
for &v in line.tel_b.as_ref() {
sum_b += v as f32;
}
}
if count > 0 {
wedge_means_a[wedge_idx] = sum_a / count as f32 / 255.0;
wedge_means_b[wedge_idx] = sum_b / count as f32 / 255.0;
}
}
// Detect sensor channels from wedge 9 (index 8)
let sensor_a = wedge9_to_sensor(wedge_means_a[8]);
let sensor_b = wedge9_to_sensor(wedge_means_b[8]);
// Build calibration LUTs from wedges 1-8
let cal_lut_a = build_calibration_lut(&wedge_means_a);
let cal_lut_b = build_calibration_lut(&wedge_means_b);
// Identify satellite from channel pairing
let satellite = identify_satellite(sensor_a, sensor_b);
Some(TelemetryFrame {
wedge_means_a,
wedge_means_b,
sensor_a,
sensor_b,
cal_lut_a,
cal_lut_b,
satellite,
})
}
/// Build a 256-entry calibration look-up table from wedge means.
///
/// Wedges 1-8 (indices 0-7) represent known reference levels at 1/8 to 8/8.
/// We fit a piecewise linear mapping from observed pixel values to calibrated
/// output levels, producing a corrected 0-255 output.
fn build_calibration_lut(wedge_means: &[f32; NUM_WEDGES]) -> [u8; 256] {
let mut lut = [0u8; 256];
// Collect (observed_pixel_value, target_normalised) pairs from wedges 1-8
let mut pairs: Vec<(f32, f32)> = Vec::with_capacity(8);
for i in 0..8 {
let observed = wedge_means[i] * 255.0;
let target = WEDGE_STEPS[i];
pairs.push((observed, target));
}
// Sort by observed value
pairs.sort_by(|a, b| a.0.partial_cmp(&b.0).unwrap_or(std::cmp::Ordering::Equal));
// Deduplicate (if two wedges map to nearly the same observed value)
pairs.dedup_by(|a, b| (a.0 - b.0).abs() < 0.5);
if pairs.len() < 2 {
// Not enough calibration data — return identity
for (i, v) in lut.iter_mut().enumerate() {
*v = i as u8;
}
return lut;
}
// Piecewise linear interpolation
for (i, entry) in lut.iter_mut().enumerate() {
let x = i as f32;
let calibrated = if x <= pairs[0].0 {
pairs[0].1
} else if x >= pairs[pairs.len() - 1].0 {
pairs[pairs.len() - 1].1
} else {
let mut cal = pairs[0].1;
for w in pairs.windows(2) {
if x >= w[0].0 && x <= w[1].0 {
let t = (x - w[0].0) / (w[1].0 - w[0].0).max(1e-6);
cal = w[0].1 + t * (w[1].1 - w[0].1);
break;
}
}
cal
};
*entry = (calibrated * 255.0).round().clamp(0.0, 255.0) as u8;
}
lut
}
/// Identify the satellite based on channel pairing heuristics.
///
/// Typical APT channel pairings:
/// - NOAA-15: Ch A = 2 (NIR), Ch B = 4 (TIR) daytime;
/// Ch A = 3A (NIR), Ch B = 4 (TIR) alternate daytime
/// - NOAA-18: Ch A = 1 (VIS), Ch B = 4 (TIR) daytime;
/// Ch A = 3A (NIR), Ch B = 4 (TIR) alternate
/// - NOAA-19: Ch A = 2 (NIR), Ch B = 4 (TIR) daytime
///
/// Night passes typically transmit Ch 3B or Ch 4 on channel A.
fn identify_satellite(sensor_a: SensorChannel, sensor_b: SensorChannel) -> Satellite {
match (sensor_a, sensor_b) {
// NOAA-18 typically sends VIS ch1 on A
(SensorChannel::Visible1, SensorChannel::ThermalIr4) => Satellite::Noaa18,
// NOAA-15 and NOAA-19 both send NIR ch2 on A; distinguish by B channel
(SensorChannel::NearIr2, SensorChannel::ThermalIr4) => {
// Both NOAA-15 and NOAA-19 use this pairing; cannot easily distinguish
// without orbital data. Default to NOAA-19 (most common active).
Satellite::Noaa19
}
(SensorChannel::NearIr3A, SensorChannel::ThermalIr4) => Satellite::Noaa15,
(SensorChannel::NearIr2, SensorChannel::ThermalIr5) => Satellite::Noaa19,
_ => Satellite::Unknown,
}
}
/// Apply calibration LUT to a line's pixel data (in-place).
pub fn calibrate_line_a(pixels: &mut [u8; IMAGE_A_LEN], lut: &[u8; 256]) {
for p in pixels.iter_mut() {
*p = lut[*p as usize];
}
}
/// Apply calibration LUT to a line's pixel data (in-place).
pub fn calibrate_line_b(pixels: &mut [u8; IMAGE_B_LEN], lut: &[u8; 256]) {
for p in pixels.iter_mut() {
*p = lut[*p as usize];
}
}
/// Apply histogram equalisation to an image channel for contrast enhancement.
pub fn histogram_equalize(pixels: &mut [u8]) {
if pixels.is_empty() {
return;
}
// Build histogram
let mut hist = [0u32; 256];
for &p in pixels.iter() {
hist[p as usize] += 1;
}
// Compute CDF
let mut cdf = [0u32; 256];
cdf[0] = hist[0];
for i in 1..256 {
cdf[i] = cdf[i - 1] + hist[i];
}
// Find minimum non-zero CDF value
let cdf_min = cdf.iter().copied().find(|&v| v > 0).unwrap_or(0);
let total = pixels.len() as u32;
let denom = (total - cdf_min).max(1);
// Build equalisation LUT
let mut lut = [0u8; 256];
for i in 0..256 {
lut[i] = ((cdf[i].saturating_sub(cdf_min) as f64 / denom as f64) * 255.0).round() as u8;
}
// Apply
for p in pixels.iter_mut() {
*p = lut[*p as usize];
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_wedge9_to_sensor() {
assert_eq!(wedge9_to_sensor(0.125), SensorChannel::Visible1);
assert_eq!(wedge9_to_sensor(0.25), SensorChannel::NearIr2);
assert_eq!(wedge9_to_sensor(0.375), SensorChannel::NearIr3A);
assert_eq!(wedge9_to_sensor(0.5), SensorChannel::MidIr3B);
assert_eq!(wedge9_to_sensor(0.625), SensorChannel::ThermalIr4);
assert_eq!(wedge9_to_sensor(0.75), SensorChannel::ThermalIr5);
assert_eq!(wedge9_to_sensor(0.0), SensorChannel::Unknown);
}
#[test]
fn test_identify_satellite() {
assert_eq!(
identify_satellite(SensorChannel::Visible1, SensorChannel::ThermalIr4),
Satellite::Noaa18
);
assert_eq!(
identify_satellite(SensorChannel::NearIr2, SensorChannel::ThermalIr4),
Satellite::Noaa19
);
assert_eq!(
identify_satellite(SensorChannel::NearIr3A, SensorChannel::ThermalIr4),
Satellite::Noaa15
);
}
#[test]
fn test_calibration_lut_identity_on_insufficient_data() {
let mut means = [0.0f32; NUM_WEDGES];
// All zeros → insufficient data → identity LUT
let lut = build_calibration_lut(&means);
for i in 0..256 {
assert_eq!(lut[i], i as u8);
}
// One non-zero wedge still insufficient (need ≥ 2 distinct)
means[0] = 0.5;
let lut = build_calibration_lut(&means);
// Still degenerate
assert!(lut[0] == lut[0]); // trivially true, but confirms no panic
}
#[test]
fn test_histogram_equalize_uniform() {
// Uniform distribution should remain roughly unchanged
let mut pixels: Vec<u8> = (0..=255).collect();
histogram_equalize(&mut pixels);
// After equalization, values should span full range
assert_eq!(*pixels.first().unwrap(), 0);
assert_eq!(*pixels.last().unwrap(), 255);
}
#[test]
fn test_sensor_channel_display() {
assert_eq!(format!("{}", SensorChannel::Visible1), "1-VIS");
assert_eq!(format!("{}", SensorChannel::ThermalIr4), "4-TIR");
}
#[test]
fn test_satellite_display() {
assert_eq!(format!("{}", Satellite::Noaa15), "NOAA-15");
assert_eq!(format!("{}", Satellite::Noaa19), "NOAA-19");
}
}
+1 -1
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@@ -519,7 +519,7 @@ async fn async_init() -> DynResult<AppState> {
history.push_back((now, None, message));
}
}
DecodedMessage::NoaaImage(_) => {}
DecodedMessage::WxsatImage(_) => {}
}
});
@@ -2485,7 +2485,7 @@ async fn wait_for_view(mut rx: watch::Receiver<RigState>) -> Result<RigSnapshot,
ft4_decode_enabled: state.ft4_decode_enabled,
ft2_decode_enabled: state.ft2_decode_enabled,
wspr_decode_enabled: state.wspr_decode_enabled,
noaa_decode_enabled: state.noaa_decode_enabled,
wxsat_decode_enabled: state.wxsat_decode_enabled,
filter: state.filter.clone(),
spectrum: None,
vchan_rds: None,
@@ -554,7 +554,7 @@ pub fn start_decode_history_collector(context: Arc<FrontendRuntimeContext>) {
DecodedMessage::Ft4(msg) => record_ft4(&context, msg),
DecodedMessage::Ft2(msg) => record_ft2(&context, msg),
DecodedMessage::Wspr(msg) => record_wspr(&context, msg),
DecodedMessage::NoaaImage(_) => {}
DecodedMessage::WxsatImage(_) => {}
},
Err(broadcast::error::RecvError::Lagged(_)) => continue,
Err(broadcast::error::RecvError::Closed) => break,
+2 -2
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@@ -66,8 +66,8 @@ pub const AUDIO_MSG_VCHAN_BW: u8 = 0x13;
pub const AUDIO_MSG_FT4_DECODE: u8 = 0x14;
/// Server → client: FT2 decoded message (JSON `DecodedMessage::Ft2`).
pub const AUDIO_MSG_FT2_DECODE: u8 = 0x15;
/// Server → client: NOAA APT image complete (JSON `DecodedMessage::NoaaImage`).
pub const AUDIO_MSG_NOAA_IMAGE: u8 = 0x16;
/// Server → client: weather satellite APT image complete (JSON `DecodedMessage::WxsatImage`).
pub const AUDIO_MSG_WXSAT_IMAGE: u8 = 0x16;
/// Maximum payload size for normal messages (1 MB).
const MAX_PAYLOAD_SIZE: u32 = 1_048_576;
+15 -6
View File
@@ -28,8 +28,8 @@ pub enum DecodedMessage {
Ft2(Ft8Message),
#[serde(rename = "wspr")]
Wspr(WsprMessage),
#[serde(rename = "noaa_image")]
NoaaImage(NoaaImage),
#[serde(rename = "wxsat_image")]
WxsatImage(WxsatImage),
}
impl DecodedMessage {
@@ -42,7 +42,7 @@ impl DecodedMessage {
Self::Cw(m) => m.rig_id = Some(id),
Self::Ft8(m) | Self::Ft4(m) | Self::Ft2(m) => m.rig_id = Some(id),
Self::Wspr(m) => m.rig_id = Some(id),
Self::NoaaImage(m) => m.rig_id = Some(id),
Self::WxsatImage(m) => m.rig_id = Some(id),
}
}
@@ -55,7 +55,7 @@ impl DecodedMessage {
Self::Cw(m) => m.rig_id.as_deref(),
Self::Ft8(m) | Self::Ft4(m) | Self::Ft2(m) => m.rig_id.as_deref(),
Self::Wspr(m) => m.rig_id.as_deref(),
Self::NoaaImage(m) => m.rig_id.as_deref(),
Self::WxsatImage(m) => m.rig_id.as_deref(),
}
}
}
@@ -207,9 +207,9 @@ pub struct Ft8Message {
pub message: String,
}
/// A completed NOAA APT satellite image, saved to disk as a JPEG.
/// A completed weather satellite APT image, saved to disk as a JPEG.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NoaaImage {
pub struct WxsatImage {
#[serde(skip_serializing_if = "Option::is_none")]
pub rig_id: Option<String>,
/// UTC timestamp (milliseconds since epoch) of pass start (first decoded line).
@@ -222,6 +222,15 @@ pub struct NoaaImage {
pub path: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub ts_ms: Option<i64>,
/// Identified satellite (e.g. "NOAA-15", "NOAA-18", "NOAA-19").
#[serde(default, skip_serializing_if = "Option::is_none")]
pub satellite: Option<String>,
/// Sensor channel name for sub-channel A (e.g. "1-VIS", "2-NIR", "4-TIR").
#[serde(default, skip_serializing_if = "Option::is_none")]
pub channel_a: Option<String>,
/// Sensor channel name for sub-channel B.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub channel_b: Option<String>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
+8 -8
View File
@@ -46,7 +46,7 @@ pub struct RigState {
#[serde(default)]
pub wspr_decode_enabled: bool,
#[serde(default)]
pub noaa_decode_enabled: bool,
pub wxsat_decode_enabled: bool,
#[serde(default)]
pub cw_auto: bool,
#[serde(default)]
@@ -80,7 +80,7 @@ pub struct RigState {
#[serde(default, skip_serializing)]
pub wspr_decode_reset_seq: u64,
#[serde(default, skip_serializing)]
pub noaa_decode_reset_seq: u64,
pub wxsat_decode_reset_seq: u64,
}
/// Mode supported by the rig.
@@ -163,7 +163,7 @@ impl RigState {
ft4_decode_enabled: false,
ft2_decode_enabled: false,
wspr_decode_enabled: false,
noaa_decode_enabled: false,
wxsat_decode_enabled: false,
cw_auto: true,
cw_wpm: 15,
cw_tone_hz: 700,
@@ -177,7 +177,7 @@ impl RigState {
ft4_decode_reset_seq: 0,
ft2_decode_reset_seq: 0,
wspr_decode_reset_seq: 0,
noaa_decode_reset_seq: 0,
wxsat_decode_reset_seq: 0,
}
}
@@ -237,7 +237,7 @@ impl RigState {
ft4_decode_enabled: snapshot.ft4_decode_enabled,
ft2_decode_enabled: snapshot.ft2_decode_enabled,
wspr_decode_enabled: snapshot.wspr_decode_enabled,
noaa_decode_enabled: snapshot.noaa_decode_enabled,
wxsat_decode_enabled: snapshot.wxsat_decode_enabled,
filter: snapshot.filter,
spectrum: None, // spectrum flows through /api/spectrum, not persistent state
vchan_rds: None, // vchan RDS flows through /api/spectrum, not persistent state
@@ -248,7 +248,7 @@ impl RigState {
ft4_decode_reset_seq: 0,
ft2_decode_reset_seq: 0,
wspr_decode_reset_seq: 0,
noaa_decode_reset_seq: 0,
wxsat_decode_reset_seq: 0,
}
}
@@ -286,7 +286,7 @@ impl RigState {
ft4_decode_enabled: self.ft4_decode_enabled,
ft2_decode_enabled: self.ft2_decode_enabled,
wspr_decode_enabled: self.wspr_decode_enabled,
noaa_decode_enabled: self.noaa_decode_enabled,
wxsat_decode_enabled: self.wxsat_decode_enabled,
filter: self.filter.clone(),
spectrum: self.spectrum.clone(),
vchan_rds: self.vchan_rds.clone(),
@@ -498,7 +498,7 @@ pub struct RigSnapshot {
#[serde(default)]
pub wspr_decode_enabled: bool,
#[serde(default)]
pub noaa_decode_enabled: bool,
pub wxsat_decode_enabled: bool,
#[serde(default)]
pub cw_auto: bool,
#[serde(default)]
+1
View File
@@ -455,6 +455,7 @@ mod tests {
ft4_decode_enabled: false,
ft2_decode_enabled: false,
wspr_decode_enabled: false,
wxsat_decode_enabled: false,
cw_auto: false,
cw_wpm: 0,
cw_tone_hz: 0,
+1 -1
View File
@@ -39,6 +39,6 @@ trx-cw = { path = "../decoders/trx-cw" }
trx-decode-log = { path = "../decoders/trx-decode-log" }
trx-ftx = { path = "../decoders/trx-ftx" }
trx-wspr = { path = "../decoders/trx-wspr" }
trx-noaa = { path = "../decoders/trx-noaa" }
trx-wxsat = { path = "../decoders/trx-wxsat" }
trx-protocol = { path = "../trx-protocol" }
trx-reporting = { path = "../trx-reporting" }
+57 -48
View File
@@ -25,21 +25,21 @@ use trx_core::audio::{
parse_vchan_uuid_msg, read_audio_msg, write_audio_msg, write_vchan_audio_frame,
write_vchan_uuid_msg, AudioStreamInfo, AUDIO_MSG_AIS_DECODE, AUDIO_MSG_APRS_DECODE,
AUDIO_MSG_CW_DECODE, AUDIO_MSG_FT2_DECODE, AUDIO_MSG_FT4_DECODE, AUDIO_MSG_FT8_DECODE,
AUDIO_MSG_HF_APRS_DECODE, AUDIO_MSG_HISTORY_COMPRESSED, AUDIO_MSG_NOAA_IMAGE,
AUDIO_MSG_HF_APRS_DECODE, AUDIO_MSG_HISTORY_COMPRESSED, AUDIO_MSG_WXSAT_IMAGE,
AUDIO_MSG_RX_FRAME, AUDIO_MSG_STREAM_INFO, AUDIO_MSG_TX_FRAME, AUDIO_MSG_VCHAN_ALLOCATED,
AUDIO_MSG_VCHAN_BW, AUDIO_MSG_VCHAN_DESTROYED, AUDIO_MSG_VCHAN_FREQ, AUDIO_MSG_VCHAN_MODE,
AUDIO_MSG_VCHAN_REMOVE, AUDIO_MSG_VCHAN_SUB, AUDIO_MSG_VCHAN_UNSUB, AUDIO_MSG_VDES_DECODE,
AUDIO_MSG_WSPR_DECODE,
};
use trx_core::decode::{
AisMessage, AprsPacket, CwEvent, DecodedMessage, Ft8Message, NoaaImage, VdesMessage,
WsprMessage,
AisMessage, AprsPacket, CwEvent, DecodedMessage, Ft8Message, VdesMessage, WsprMessage,
WxsatImage,
};
use trx_core::rig::state::{RigMode, RigState};
use trx_core::vchan::SharedVChanManager;
use trx_cw::CwDecoder;
use trx_ftx::Ft8Decoder;
use trx_noaa::AptDecoder;
use trx_wxsat::AptDecoder;
use trx_vdes::VdesDecoder;
use trx_wspr::WsprDecoder;
use uuid::Uuid;
@@ -54,9 +54,9 @@ const VDES_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
const CW_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
const FT8_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
const WSPR_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
const NOAA_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
/// Silence timeout before auto-finalising a NOAA pass (30 s without new lines).
const NOAA_PASS_SILENCE_TIMEOUT: Duration = Duration::from_secs(30);
const WXSAT_HISTORY_RETENTION: Duration = Duration::from_secs(24 * 60 * 60);
/// Silence timeout before auto-finalising a wxsat pass (30 s without new lines).
const WXSAT_PASS_SILENCE_TIMEOUT: Duration = Duration::from_secs(30);
const FT8_SAMPLE_RATE: u32 = 12_000;
const FT2_ASYNC_BUFFER_SAMPLES: usize = 45_000;
const FT2_ASYNC_TRIGGER_SAMPLES: usize = 9_000;
@@ -213,7 +213,7 @@ pub struct DecoderHistories {
pub ft4: Mutex<VecDeque<(Instant, Ft8Message)>>,
pub ft2: Mutex<VecDeque<(Instant, Ft8Message)>>,
pub wspr: Mutex<VecDeque<(Instant, WsprMessage)>>,
pub noaa: Mutex<VecDeque<(Instant, NoaaImage)>>,
pub wxsat: Mutex<VecDeque<(Instant, WxsatImage)>>,
/// Approximate total entry count across all decoders, maintained
/// atomically so `estimated_total_count()` avoids 9 lock acquisitions.
total_count: AtomicUsize,
@@ -231,7 +231,7 @@ impl DecoderHistories {
ft4: Mutex::new(VecDeque::new()),
ft2: Mutex::new(VecDeque::new()),
wspr: Mutex::new(VecDeque::new()),
noaa: Mutex::new(VecDeque::new()),
wxsat: Mutex::new(VecDeque::new()),
total_count: AtomicUsize::new(0),
})
}
@@ -591,10 +591,10 @@ impl DecoderHistories {
self.adjust_total_count(before, 0);
}
// --- NOAA ---
// --- WXSAT ---
fn prune_noaa(history: &mut VecDeque<(Instant, NoaaImage)>) {
let cutoff = Instant::now() - NOAA_HISTORY_RETENTION;
fn prune_wxsat(history: &mut VecDeque<(Instant, WxsatImage)>) {
let cutoff = Instant::now() - WXSAT_HISTORY_RETENTION;
while let Some((ts, _)) = history.front() {
if *ts < cutoff {
history.pop_front();
@@ -604,21 +604,21 @@ impl DecoderHistories {
}
}
pub fn record_noaa_image(&self, mut img: NoaaImage) {
pub fn record_wxsat_image(&self, mut img: WxsatImage) {
if img.ts_ms.is_none() {
img.ts_ms = Some(current_timestamp_ms());
}
let mut h = self.noaa.lock().unwrap_or_else(|e| e.into_inner());
let mut h = self.wxsat.lock().unwrap_or_else(|e| e.into_inner());
let before = h.len();
h.push_back((Instant::now(), img));
Self::prune_noaa(&mut h);
Self::prune_wxsat(&mut h);
self.adjust_total_count(before, h.len());
}
pub fn snapshot_noaa_history(&self) -> Vec<NoaaImage> {
let mut h = self.noaa.lock().unwrap_or_else(|e| e.into_inner());
pub fn snapshot_wxsat_history(&self) -> Vec<WxsatImage> {
let mut h = self.wxsat.lock().unwrap_or_else(|e| e.into_inner());
let before = h.len();
Self::prune_noaa(&mut h);
Self::prune_wxsat(&mut h);
self.adjust_total_count(before, h.len());
h.iter().map(|(_, img)| img.clone()).collect()
}
@@ -2394,16 +2394,16 @@ pub async fn run_wspr_decoder(
}
// ---------------------------------------------------------------------------
// NOAA APT decoder task
// Weather satellite APT decoder task
// ---------------------------------------------------------------------------
/// Decode NOAA APT satellite images from FM-demodulated audio.
/// Decode weather satellite APT images from FM-demodulated audio.
///
/// The task is idle until `state.noaa_decode_enabled` becomes `true`.
/// The task is idle until `state.wxsat_decode_enabled` becomes `true`.
/// When the user disables the decoder (or 30 s of silence elapses with no
/// new decoded lines), the accumulated image is encoded as JPEG and saved to
/// `output_dir/<YYYY-MM-DD_HH-MM-SS>.jpg`.
pub async fn run_noaa_decoder(
pub async fn run_wxsat_decoder(
sample_rate: u32,
channels: u16,
mut pcm_rx: broadcast::Receiver<Vec<f32>>,
@@ -2412,10 +2412,10 @@ pub async fn run_noaa_decoder(
histories: Arc<DecoderHistories>,
output_dir: std::path::PathBuf,
) {
info!("NOAA decoder started ({}Hz, {} ch)", sample_rate, channels);
info!("wxsat decoder started ({}Hz, {} ch)", sample_rate, channels);
let mut decoder = AptDecoder::new(sample_rate);
let mut last_reset_seq: u64 = 0;
let mut active = state_rx.borrow().noaa_decode_enabled;
let mut active = state_rx.borrow().wxsat_decode_enabled;
let mut pass_start_ms: i64 = 0;
// Instant of the last time new lines were decoded (for auto-finalise)
let mut last_line_at = tokio::time::Instant::now();
@@ -2430,15 +2430,15 @@ pub async fn run_noaa_decoder(
match state_rx.changed().await {
Ok(()) => {
let state = state_rx.borrow();
active = state.noaa_decode_enabled;
active = state.wxsat_decode_enabled;
if active {
decoder.reset();
pass_start_ms = current_timestamp_ms();
last_line_at = tokio::time::Instant::now();
pcm_rx = pcm_rx.resubscribe();
}
if state.noaa_decode_reset_seq != last_reset_seq {
last_reset_seq = state.noaa_decode_reset_seq;
if state.wxsat_decode_reset_seq != last_reset_seq {
last_reset_seq = state.wxsat_decode_reset_seq;
decoder.reset();
}
}
@@ -2447,13 +2447,13 @@ pub async fn run_noaa_decoder(
continue;
}
let silence_deadline = last_line_at + NOAA_PASS_SILENCE_TIMEOUT;
let silence_deadline = last_line_at + WXSAT_PASS_SILENCE_TIMEOUT;
tokio::select! {
recv = pcm_rx.recv() => {
match recv {
Ok(frame) => {
let reset_seq = state_rx.borrow().noaa_decode_reset_seq;
let reset_seq = state_rx.borrow().wxsat_decode_reset_seq;
if reset_seq != last_reset_seq {
last_reset_seq = reset_seq;
decoder.reset();
@@ -2468,7 +2468,7 @@ pub async fn run_noaa_decoder(
}
}
Err(broadcast::error::RecvError::Lagged(n)) => {
warn!("NOAA decoder: dropped {} PCM frames", n);
warn!("wxsat decoder: dropped {} PCM frames", n);
}
Err(broadcast::error::RecvError::Closed) => break,
}
@@ -2479,7 +2479,7 @@ pub async fn run_noaa_decoder(
// Extract fields before any await so the Ref is dropped.
let (new_active, new_reset_seq) = {
let state = state_rx.borrow();
(state.noaa_decode_enabled, state.noaa_decode_reset_seq)
(state.wxsat_decode_enabled, state.wxsat_decode_reset_seq)
};
let was_active = active;
active = new_active;
@@ -2490,7 +2490,7 @@ pub async fn run_noaa_decoder(
}
if was_active && !active {
// User disabled — finalise whatever we have
finalize_noaa_pass(
finalize_wxsat_pass(
&mut decoder,
&output_dir,
&decode_tx,
@@ -2510,11 +2510,11 @@ pub async fn run_noaa_decoder(
// Auto-finalise after sustained silence (satellite pass ended)
_ = tokio::time::sleep_until(silence_deadline), if decoder.line_count() > 0 => {
info!(
"NOAA: no new lines for {}s — finalising pass ({} lines)",
NOAA_PASS_SILENCE_TIMEOUT.as_secs(),
"wxsat: no new lines for {}s — finalising pass ({} lines)",
WXSAT_PASS_SILENCE_TIMEOUT.as_secs(),
decoder.line_count()
);
finalize_noaa_pass(
finalize_wxsat_pass(
&mut decoder,
&output_dir,
&decode_tx,
@@ -2530,8 +2530,8 @@ pub async fn run_noaa_decoder(
}
/// Encode all accumulated lines as JPEG, write to disk, and broadcast the
/// `DecodedMessage::NoaaImage` event. No-ops if fewer than 2 lines decoded.
async fn finalize_noaa_pass(
/// `DecodedMessage::WxsatImage` event. No-ops if fewer than 2 lines decoded.
async fn finalize_wxsat_pass(
decoder: &mut AptDecoder,
output_dir: &std::path::Path,
decode_tx: &broadcast::Sender<DecodedMessage>,
@@ -2556,7 +2556,7 @@ async fn finalize_noaa_pass(
if let Err(e) = std::fs::create_dir_all(output_dir) {
warn!(
"NOAA: failed to create output directory {:?}: {}",
"wxsat: failed to create output directory {:?}: {}",
output_dir, e
);
decoder.reset();
@@ -2565,26 +2565,35 @@ async fn finalize_noaa_pass(
match std::fs::write(&path, &apt_image.jpeg) {
Ok(()) => {
let sat_str = format!("{}", apt_image.satellite);
let ch_a_str = format!("{}", apt_image.sensor_a);
let ch_b_str = format!("{}", apt_image.sensor_b);
info!(
"NOAA: saved {} ({} lines, {} bytes) to {:?}",
"wxsat: saved {} ({} lines, {} bytes, {}, A={}, B={}) to {:?}",
filename,
apt_image.line_count,
apt_image.jpeg.len(),
sat_str,
ch_a_str,
ch_b_str,
path
);
let img = NoaaImage {
let img = WxsatImage {
rig_id: None,
pass_start_ms: apt_image.first_line_ms,
pass_end_ms,
line_count: apt_image.line_count,
path: path.to_string_lossy().into_owned(),
ts_ms: Some(pass_end_ms),
satellite: Some(sat_str),
channel_a: Some(ch_a_str),
channel_b: Some(ch_b_str),
};
histories.record_noaa_image(img.clone());
let _ = decode_tx.send(DecodedMessage::NoaaImage(img));
histories.record_wxsat_image(img.clone());
let _ = decode_tx.send(DecodedMessage::WxsatImage(img));
}
Err(e) => {
warn!("NOAA: failed to write {:?}: {}", path, e);
warn!("wxsat: failed to write {:?}: {}", path, e);
}
}
@@ -3191,9 +3200,9 @@ async fn handle_audio_client(
AUDIO_MSG_CW_DECODE
);
push_history!(
histories.snapshot_noaa_history(),
DecodedMessage::NoaaImage,
AUDIO_MSG_NOAA_IMAGE
histories.snapshot_wxsat_history(),
DecodedMessage::WxsatImage,
AUDIO_MSG_WXSAT_IMAGE
);
(blob, count)
@@ -3278,7 +3287,7 @@ async fn handle_audio_client(
DecodedMessage::Ft4(_) => AUDIO_MSG_FT4_DECODE,
DecodedMessage::Ft2(_) => AUDIO_MSG_FT2_DECODE,
DecodedMessage::Wspr(_) => AUDIO_MSG_WSPR_DECODE,
DecodedMessage::NoaaImage(_) => AUDIO_MSG_NOAA_IMAGE,
DecodedMessage::WxsatImage(_) => AUDIO_MSG_WXSAT_IMAGE,
};
if let Ok(json) = serde_json::to_vec(&msg) {
if let Err(e) = write_audio_msg(&mut writer_for_rx, msg_type, &json).await {
@@ -3306,7 +3315,7 @@ async fn handle_audio_client(
DecodedMessage::Ft4(_) => AUDIO_MSG_FT4_DECODE,
DecodedMessage::Ft2(_) => AUDIO_MSG_FT2_DECODE,
DecodedMessage::Wspr(_) => AUDIO_MSG_WSPR_DECODE,
DecodedMessage::NoaaImage(_) => AUDIO_MSG_NOAA_IMAGE,
DecodedMessage::WxsatImage(_) => AUDIO_MSG_WXSAT_IMAGE,
};
if let Ok(json) = serde_json::to_vec(&msg) {
if let Err(e) = write_audio_msg(&mut writer_for_rx, msg_type, &json).await {
+12 -12
View File
@@ -794,22 +794,22 @@ fn spawn_rig_audio_stack(
}
}));
// Spawn NOAA APT decoder task
let noaa_pcm_rx = pcm_tx.subscribe();
let noaa_state_rx = state_rx.clone();
let noaa_decode_tx = decode_tx.clone();
let noaa_sr = rig_cfg.audio.sample_rate;
let noaa_ch = rig_cfg.audio.channels;
let noaa_shutdown_rx = shutdown_rx.clone();
let noaa_histories = histories.clone();
let noaa_output_dir = dirs::cache_dir()
// Spawn weather satellite APT decoder task
let wxsat_pcm_rx = pcm_tx.subscribe();
let wxsat_state_rx = state_rx.clone();
let wxsat_decode_tx = decode_tx.clone();
let wxsat_sr = rig_cfg.audio.sample_rate;
let wxsat_ch = rig_cfg.audio.channels;
let wxsat_shutdown_rx = shutdown_rx.clone();
let wxsat_histories = histories.clone();
let wxsat_output_dir = dirs::cache_dir()
.unwrap_or_else(|| std::path::PathBuf::from(".cache"))
.join("trx-rs")
.join("noaa");
.join("wxsat");
handles.push(tokio::spawn(async move {
tokio::select! {
_ = audio::run_noaa_decoder(noaa_sr, noaa_ch as u16, noaa_pcm_rx, noaa_state_rx, noaa_decode_tx, noaa_histories, noaa_output_dir) => {}
_ = wait_for_shutdown(noaa_shutdown_rx) => {}
_ = audio::run_wxsat_decoder(wxsat_sr, wxsat_ch as u16, wxsat_pcm_rx, wxsat_state_rx, wxsat_decode_tx, wxsat_histories, wxsat_output_dir) => {}
_ = wait_for_shutdown(wxsat_shutdown_rx) => {}
}
}));
}