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[fix](trx-wxsat): fix LRPT decoder always-enabled bug and implement image decoding

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The LRPT decoder task was missing mode checks, processing audio in any
rig mode once toggled on. Now it only activates in FM mode, matching
the decoder registry descriptor. Also corrects active_modes from
DIG/USB to FM.

Replaces the MCU stub (which treated compressed JPEG data as raw
pixels) with proper Huffman + inverse-DCT decompression, CCSDS packet
reassembly from MPDUs, and CCSDS derandomization in the CADU framer.

https://claude.ai/code/session_0135LuveBndEiZHkU2jsKPB9
Signed-off-by: Claude <noreply@anthropic.com>
This commit is contained in:
Claude
2026-03-31 11:16:14 +00:00
committed by Stan Grams
parent bf2d70bf93
commit f2469fee12
4 changed files with 614 additions and 32 deletions
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src/trx-server/src/audio.rs
+7 -3
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@@ -2395,7 +2395,8 @@ pub async fn run_lrpt_decoder(
info!("LRPT decoder started ({}Hz, {} ch)", sample_rate, channels);
let mut decoder = LrptDecoder::new(sample_rate);
let mut last_reset_seq: u64 = 0;
let mut active = state_rx.borrow().decoders.lrpt_decode_enabled;
let mut active = state_rx.borrow().decoders.lrpt_decode_enabled
&& matches!(state_rx.borrow().status.mode, RigMode::FM);
let mut pass_start_ms: i64 = 0;
let mut last_mcu_at = tokio::time::Instant::now();
@@ -2404,7 +2405,8 @@ pub async fn run_lrpt_decoder(
match state_rx.changed().await {
Ok(()) => {
let state = state_rx.borrow();
active = state.decoders.lrpt_decode_enabled;
active = state.decoders.lrpt_decode_enabled
&& matches!(state.status.mode, RigMode::FM);
if active {
decoder.reset();
pass_start_ms = current_timestamp_ms();
@@ -2455,7 +2457,9 @@ pub async fn run_lrpt_decoder(
if changed.is_ok() {
let (new_active, new_reset_seq) = {
let state = state_rx.borrow();
(state.decoders.lrpt_decode_enabled, state.reset_seqs.lrpt_decode_reset_seq)
(state.decoders.lrpt_decode_enabled
&& matches!(state.status.mode, RigMode::FM),
state.reset_seqs.lrpt_decode_reset_seq)
};
let was_active = active;
active = new_active;