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Add VIS detector state to signal monitor for decode diagnostics

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Shows the current VIS detection state machine position (Idle, Leader,
Break, Start bit, Data bits, etc.) in the signal monitor. This helps
diagnose why decoding may not be starting - e.g. if the VIS detector
is stuck in Idle despite a leader tone being present, the signal may
not contain a valid VIS header.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Smittix
2026-02-07 11:44:35 +00:00
parent 1e249a0eec
commit 06c218c736
5 changed files with 70 additions and 0 deletions
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14
static/css/modes/sstv-general.css
View File

@@ -465,6 +465,20 @@
text-align: center;
}
.sstv-general-signal-vis-state {
font-family: var(--font-mono);
font-size: 9px;
color: var(--text-dim);
text-align: center;
margin-top: 6px;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.sstv-general-signal-vis-state.active {
color: var(--accent-cyan);
}
/* ============================================
IMAGE MODAL
============================================ */

14
static/css/modes/sstv.css
View File

@@ -812,6 +812,20 @@
text-align: center;
}
.sstv-signal-vis-state {
font-family: var(--font-mono);
font-size: 9px;
color: var(--text-dim);
text-align: center;
margin-top: 6px;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.sstv-signal-vis-state.active {
color: var(--accent-cyan);
}
/* ============================================
IMAGE MODAL
============================================ */

19
static/js/modes/sstv-general.js
View File

@@ -308,6 +308,7 @@ const SSTVGeneral = (function() {
<span class="sstv-general-signal-level-value">0</span>
</div>
<div class="sstv-general-signal-status-text">No signal</div>
<div class="sstv-general-signal-vis-state">VIS: idle</div>
</div>`;
monitor = container.querySelector('.sstv-general-signal-monitor');
}
@@ -317,6 +318,24 @@ const SSTVGeneral = (function() {
fill.style.background = barColor;
monitor.querySelector('.sstv-general-signal-status-text').textContent = statusText;
monitor.querySelector('.sstv-general-signal-level-value').textContent = level;
const visStateEl = monitor.querySelector('.sstv-general-signal-vis-state');
if (visStateEl && data.vis_state) {
const stateLabels = {
'idle': 'Idle',
'leader_1': 'Leader',
'break': 'Break',
'leader_2': 'Leader 2',
'start_bit': 'Start bit',
'data_bits': 'Data bits',
'parity': 'Parity',
'stop_bit': 'Stop bit',
};
const label = stateLabels[data.vis_state] || data.vis_state;
visStateEl.textContent = 'VIS: ' + label;
visStateEl.className = 'sstv-general-signal-vis-state' +
(data.vis_state !== 'idle' ? ' active' : '');
}
}
/**

19
static/js/modes/sstv.js
View File

@@ -743,6 +743,7 @@ const SSTV = (function() {
<span class="sstv-signal-level-value">0</span>
</div>
<div class="sstv-signal-status-text">No signal</div>
<div class="sstv-signal-vis-state">VIS: idle</div>
</div>`;
monitor = container.querySelector('.sstv-signal-monitor');
}
@@ -752,6 +753,24 @@ const SSTV = (function() {
fill.style.background = barColor;
monitor.querySelector('.sstv-signal-status-text').textContent = statusText;
monitor.querySelector('.sstv-signal-level-value').textContent = level;
const visStateEl = monitor.querySelector('.sstv-signal-vis-state');
if (visStateEl && data.vis_state) {
const stateLabels = {
'idle': 'Idle',
'leader_1': 'Leader',
'break': 'Break',
'leader_2': 'Leader 2',
'start_bit': 'Start bit',
'data_bits': 'Data bits',
'parity': 'Parity',
'stop_bit': 'Stop bit',
};
const label = stateLabels[data.vis_state] || data.vis_state;
visStateEl.textContent = 'VIS: ' + label;
visStateEl.className = 'sstv-signal-vis-state' +
(data.vis_state !== 'idle' ? ' active' : '');
}
}
/**

4
utils/sstv/sstv_decoder.py
View File

@@ -94,6 +94,7 @@ class DecodeProgress:
image: SSTVImage | None = None
signal_level: int | None = None # 0-100 RMS audio level, None = not measured
sstv_tone: str | None = None # 'leader', 'sync', 'noise', None
vis_state: str | None = None # VIS detector state name
def to_dict(self) -> dict:
result: dict = {
@@ -111,6 +112,8 @@ class DecodeProgress:
result['signal_level'] = self.signal_level
if self.sstv_tone:
result['sstv_tone'] = self.sstv_tone
if self.vis_state:
result['vis_state'] = self.vis_state
return result
@@ -476,6 +479,7 @@ class SSTVDecoder:
message='Listening...',
signal_level=signal_level,
sstv_tone=sstv_tone,
vis_state=vis_detector.state.value,
))
except Exception as e: