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[feat](trx-rs): add FT2 decoder protocol support

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Implement a distinct FT2 protocol path in the decoder stack and align\nits timing with the confirmed FT2 framing used by Decodium.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>

Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
This commit is contained in:
Stan Grams
2026-03-14 19:49:05 +01:00
parent d547c45a9c
commit ad6aa6aab4
9 changed files with 116 additions and 46 deletions
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src/trx-server/src/audio.rs
+7 -9
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@@ -1853,7 +1853,7 @@ pub async fn run_ft4_decoder(
}
}
/// Run the FT2 decoder task. Mirrors FT4 but uses FT2 protocol (7.5s slots for now).
/// Run the FT2 decoder task. Mirrors FT4 but uses FT2 protocol timing.
pub async fn run_ft2_decoder(
sample_rate: u32,
channels: u16,
@@ -1902,12 +1902,11 @@ pub async fn run_ft2_decoder(
recv = pcm_rx.recv() => {
match recv {
Ok(frame) => {
let now = match std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH) {
Ok(dur) => dur.as_secs() as i64,
let now_ms = match std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH) {
Ok(dur) => dur.as_millis() as i64,
Err(_) => 0,
};
// FT2 slot period is 7.5s (same as FT4 for now); use now * 2 / 15
let slot = now * 2 / 15;
let slot = now_ms / 3_750;
if slot != last_slot {
last_slot = slot;
decoder.reset();
@@ -2449,13 +2448,12 @@ async fn run_background_ft2_decoder(
loop {
match pcm_rx.recv().await {
Ok(frame) => {
let now = match std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH)
let now_ms = match std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH)
{
Ok(dur) => dur.as_secs() as i64,
Ok(dur) => dur.as_millis() as i64,
Err(_) => 0,
};
// FT2 slot period is 7.5s (same as FT4 for now); use now * 2 / 15
let slot = now * 2 / 15;
let slot = now_ms / 3_750;
if slot != last_slot {
last_slot = slot;
decoder.reset();