diff --git a/Dockerfile b/Dockerfile
index 9c8204f..33a9dae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,7 @@ FROM python:3.12-slim
RUN apt-get update && apt-get install -y --no-install-recommends \
alsa-utils \
+ ffmpeg \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /app
diff --git a/web.py b/web.py
index 0415f49..73b7947 100644
--- a/web.py
+++ b/web.py
@@ -19,9 +19,11 @@ import os
import re
import shutil
import struct
+import subprocess
+import tempfile
import wave
from datetime import datetime
-from http.server import BaseHTTPRequestHandler, HTTPServer
+from http.server import BaseHTTPRequestHandler, HTTPServer, ThreadingHTTPServer
from pathlib import Path
from urllib.parse import parse_qs, unquote, urlparse
@@ -278,6 +280,8 @@ class _Handler(BaseHTTPRequestHandler):
self._api_storage()
elif p == '/api/config':
self._api_config()
+ elif p == '/api/cut':
+ self._api_cut(qs)
elif p.startswith('/download/'):
self._download(unquote(p[len('/download/'):]))
elif p.startswith('/stream/'):
@@ -453,6 +457,79 @@ class _Handler(BaseHTTPRequestHandler):
self._send(200, json.dumps({'deleted': filename}).encode(), 'application/json')
+ def _api_cut(self, qs):
+ filename = qs.get('file', [None])[0]
+ start_s = qs.get('start', [None])[0]
+ end_s = qs.get('end', [None])[0]
+
+ if not filename or start_s is None or end_s is None:
+ self._json_err(400, 'missing file, start, or end parameter')
+ return
+
+ try:
+ start = float(start_s)
+ end = float(end_s)
+ except (ValueError, TypeError):
+ self._json_err(400, 'start and end must be numbers (seconds)')
+ return
+
+ if start < 0 or end <= start:
+ self._json_err(400, 'start must be ≥ 0 and end must be > start')
+ return
+
+ path = self._safe_path(filename)
+ if path is None:
+ return
+
+ status_path = Path(self.recordings_dir) / 'status.json'
+ try:
+ with open(status_path) as fh:
+ if filename in set(json.load(fh).get('active', [])):
+ self._json_err(409, 'Cannot cut a file that is currently being recorded')
+ return
+ except Exception:
+ pass
+
+ if not shutil.which('ffmpeg'):
+ self._json_err(500, 'ffmpeg is not available on this server')
+ return
+
+ ext = path.suffix.lower()
+ out_name = f'{path.stem}_cut_{int(start)}s-{int(end)}s{ext}'
+
+ fd, tmp_path = tempfile.mkstemp(suffix=ext)
+ os.close(fd)
+ try:
+ cmd = ['ffmpeg', '-y', '-i', str(path),
+ '-ss', str(start), '-to', str(end),
+ '-c', 'copy', tmp_path]
+ result = subprocess.run(cmd, capture_output=True, timeout=120)
+ if result.returncode != 0:
+ err = result.stderr.decode('utf-8', errors='replace')[-400:]
+ self._json_err(500, f'ffmpeg error: {err}')
+ return
+
+ tmp_size = os.path.getsize(tmp_path)
+ content_type = MIME_TYPES.get(ext, 'application/octet-stream')
+ self.send_response(200)
+ self.send_header('Content-Type', content_type)
+ self.send_header('Content-Disposition', f'attachment; filename="{out_name}"')
+ self.send_header('Content-Length', str(tmp_size))
+ self.end_headers()
+ with open(tmp_path, 'rb') as fh:
+ while True:
+ chunk = fh.read(65536)
+ if not chunk:
+ break
+ self.wfile.write(chunk)
+ except subprocess.TimeoutExpired:
+ self._json_err(504, 'ffmpeg timed out — file may be too large')
+ finally:
+ try:
+ os.unlink(tmp_path)
+ except Exception:
+ pass
+
def _safe_path(self, filename: str):
base = Path(self.recordings_dir).resolve()
try:
@@ -564,6 +641,16 @@ button.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.player-row td{padding:0 10px 10px;background:var(--bg);border-bottom:1px solid var(--brd)}
audio{width:100%;height:36px;border-radius:4px;display:block;
color-scheme:dark;accent-color:var(--accent)}
+/* cut panel */
+.cut-panel{display:flex;align-items:center;gap:8px;margin-top:8px;flex-wrap:wrap;
+ padding-top:8px;border-top:1px solid var(--brd)}
+.cut-label{font-size:12px;color:var(--muted);white-space:nowrap}
+.cut-field{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--muted)}
+.cut-time{width:90px;background:var(--bg);border:1px solid var(--brd);color:var(--txt);
+ padding:3px 6px;border-radius:4px;font-size:12px;font-family:ui-monospace,monospace}
+.cut-time:focus{outline:2px solid var(--accent);outline-offset:1px}
+button.cut{color:var(--accent);border-color:#1e40af;background:#0c1a40}
+button.cut:hover:not(:disabled){background:#1e3a8a}
/* filter bar */
.filter-bar{display:flex;align-items:center;gap:10px;padding:8px 28px;
border-bottom:1px solid var(--brd);background:var(--surf);flex-wrap:wrap}
@@ -708,7 +795,16 @@ function drawWave(rms, sections, duration, filename) {
return svg;
}
-function seekToSection(idx, filename, startSec) {
+function parseTime(s) {
+ if (!s || !s.trim()) return null;
+ const parts = s.trim().split(':').map(v => parseFloat(v));
+ if (parts.some(isNaN) || parts.length < 1 || parts.length > 3) return null;
+ if (parts.length === 3) return parts[0]*3600 + parts[1]*60 + parts[2];
+ if (parts.length === 2) return parts[0]*60 + parts[1];
+ return parts[0];
+}
+
+function seekToSection(idx, filename, startSec, endSec) {
const pbtn = document.getElementById('pbtn-'+idx);
if (pbtn.getAttribute('aria-expanded') !== 'true') togglePlayer(idx, filename);
activePlayerIdx = idx;
@@ -716,6 +812,11 @@ function seekToSection(idx, filename, startSec) {
const doSeek = () => { audio.currentTime = startSec; };
if (audio.readyState >= 1) doSeek();
else audio.addEventListener('loadedmetadata', doSeek, {once: true});
+ // Pre-fill cut panel fields with section boundaries
+ const startEl = document.getElementById('cut-start-'+idx);
+ const endEl = document.getElementById('cut-end-'+idx);
+ if (startEl) startEl.value = fmtT(startSec);
+ if (endEl && endSec != null) endEl.value = fmtT(endSec);
}
async function analyse(idx, filename, cell, btn) {
@@ -746,7 +847,7 @@ async function analyse(idx, filename, cell, btn) {
c.className='chip'; c.setAttribute('role','listitem');
c.title = 'Jump to this section (or use J/K keys)';
c.textContent = `${fmtT(s.start)} – ${fmtT(s.end)}`;
- c.addEventListener('click', () => seekToSection(idx, filename, s.start));
+ c.addEventListener('click', () => seekToSection(idx, filename, s.start, s.end));
chips.appendChild(c);
});
} else {
@@ -875,6 +976,9 @@ function renderFiles(files) {
aria-label="Play ${esc(f.name)}">▶ Play
↓ Download
+
@@ -893,6 +997,18 @@ function renderFiles(files) {
prow.innerHTML = `|
${durLabel}
+
+ ✂ Cut:
+
+
+
+
| `;
tbody.appendChild(prow);
@@ -915,6 +1031,32 @@ function renderFiles(files) {
document.getElementById('pbtn-'+i)
.addEventListener('click', () => togglePlayer(i, f.name));
+ // ---- attach cut button handler (opens player row, focuses start field) ----
+ if (!isRec) {
+ document.getElementById('cutbtn-'+i).addEventListener('click', () => {
+ const pbtn = document.getElementById('pbtn-'+i);
+ if (pbtn.getAttribute('aria-expanded') !== 'true') togglePlayer(i, f.name);
+ document.getElementById('cut-start-'+i)?.focus();
+ });
+ document.getElementById('cut-dl-'+i).addEventListener('click', () => {
+ const startStr = document.getElementById('cut-start-'+i).value;
+ const endStr = document.getElementById('cut-end-'+i).value;
+ const start = parseTime(startStr);
+ const end = parseTime(endStr);
+ if (start === null || end === null) {
+ alert('Enter start and end times, e.g. 1:30 or 0:01:30');
+ return;
+ }
+ if (start >= end) {
+ alert('Start must be before end');
+ return;
+ }
+ window.location.href =
+ '/api/cut?file=' + encodeURIComponent(f.name) +
+ '&start=' + start + '&end=' + end;
+ });
+ }
+
// ---- attach delete button handler ----
if (!isRec) {
document.getElementById('delbtn-'+i)
@@ -1019,7 +1161,7 @@ def main():
recordings_dir = str(rec_dir.resolve())
threshold = args.threshold
- server = HTTPServer((args.host, args.port), Handler)
+ server = ThreadingHTTPServer((args.host, args.port), Handler)
print(f"ISR Web running → http://{args.host}:{args.port}/")
print(f"Recordings dir → {rec_dir.resolve()}")