feat: clicking End column in scan results seeks to last 3s of clip

Time column click still seeks to clip start. End column click seeks
to end - 3s so you can preview the tail of the clip.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/audio_scan.py

@@ -737,7 +737,7 @@ def prefetch_audio(video_path: str, embed_model: str | None = None,
 def scan_video(
     video_path: str,
     model: dict = None,
-    threshold: float = 0.30,
+    threshold: float = 0.50,
     hop: float = 1.0,
     window: float = _WINDOW,
     cancel_flag: object = None,

core/db.py

@@ -418,27 +418,45 @@ class ProcessedDB:
                 pass
         return max_n
 
+    def delete_scan_exports(self, filename: str, profile: str) -> int:
+        """Delete all scan_export entries for *filename* in *profile*.
+
+        Returns the number of rows deleted.
+        """
+        if not self._enabled:
+            return 0
+        cur = self._con.execute(
+            "DELETE FROM processed"
+            " WHERE filename = ? AND profile = ? AND scan_export = 1",
+            (filename, profile),
+        )
+        self._con.commit()
+        return cur.rowcount
+
     def get_vid_folder(self, filename: str, profile: str,
                        export_folder: str) -> str:
         """Return the vid_NNN folder name for a source video.
 
         Checks existing DB output_paths first; if the video already has a
-        vid_NNN folder, returns it.  Otherwise assigns the next available
+        vid_NNN folder, returns it.  Otherwise assigns max(existing) + 1,
-        number, also checking disk for orphan vid folders.
+        also checking disk for orphan vid folders.
         """
         if not self._enabled:
             return "vid_001"
+        # Use the most recent entry (ORDER BY rowid DESC) for determinism
+        # when a file has entries across multiple vid folders.
         row = self._con.execute(
             "SELECT output_path FROM processed"
-            " WHERE filename = ? AND profile = ? LIMIT 1",
+            " WHERE filename = ? AND profile = ?"
+            " ORDER BY rowid DESC LIMIT 1",
             (filename, profile),
         ).fetchone()
         if row:
             parent = os.path.basename(os.path.dirname(row[0]))
             if parent.startswith("vid_"):
                 return parent
-        # Collect all existing vid_NNN names from DB + disk
+        # Collect max vid_NNN number from DB + disk (never reuse old numbers)
-        existing: set[str] = set()
+        max_n = 0
         rows = self._con.execute(
             "SELECT DISTINCT output_path FROM processed WHERE profile = ?",
             (profile,),
@@ -446,17 +464,20 @@ class ProcessedDB:
         for (op,) in rows:
             p = os.path.basename(os.path.dirname(op))
             if p.startswith("vid_"):
-                existing.add(p)
+                try:
+                    max_n = max(max_n, int(p.split("_")[1]))
+                except (IndexError, ValueError):
+                    pass
         if os.path.isdir(export_folder):
             for d in os.listdir(export_folder):
                 if d.startswith("vid_") and os.path.isdir(
                     os.path.join(export_folder, d)
                 ):
-                    existing.add(d)
+                    try:
-        n = 1
+                        max_n = max(max_n, int(d.split("_")[1]))
-        while f"vid_{n:03d}" in existing:
+                    except (IndexError, ValueError):
-            n += 1
+                        pass
-        return f"vid_{n:03d}"
+        return f"vid_{max_n + 1:03d}"
 
     def get_export_folders(self, profile: str = "default",
                            include_scan_exports: bool = False) -> list[str]:

core/ffmpeg.py

@@ -128,7 +128,16 @@ def build_ffmpeg_command(
             os.path.join(output_path, "frame_%04d.webp"),
         ]
     else:
-        cmd += ["-c:v", encoder, "-c:a", "pcm_s16le", output_path]
+        cmd += ["-c:v", encoder]
+        if "nvenc" in encoder:
+            cmd += ["-preset", "p4", "-cq", "28"]
+        elif "vaapi" in encoder:
+            cmd += ["-qp", "28"]
+        elif "qsv" in encoder:
+            cmd += ["-global_quality", "28"]
+        elif "amf" in encoder:
+            cmd += ["-qp_i", "28", "-qp_p", "28"]
+        cmd += ["-c:a", "pcm_s16le", output_path]
     return cmd
 
 

main.py

@@ -195,7 +195,7 @@ class ScanWorker(QThread):
     progress = pyqtSignal(str)    # status message
 
     def __init__(self, video_path: str, model: dict,
-                 threshold: float = 0.30,
+                 threshold: float = 0.50,
                  prefetched_audio=None):
         super().__init__()
         self._video_path = video_path
@@ -881,6 +881,8 @@ class ScanResultsPanel(QWidget):
 
         table.itemSelectionChanged.connect(
             lambda t=table: self._on_selection_changed(t))
+        table.cellClicked.connect(
+            lambda r, c, t=table: self._on_cell_clicked(t, r, c))
         table.cellChanged.connect(
             lambda r, c, t=table: self._on_cell_changed(t, r, c))
         container_layout.addWidget(table)
@@ -973,9 +975,24 @@ class ScanResultsPanel(QWidget):
         return ""
 
     def _on_selection_changed(self, table: QTableWidget) -> None:
-        items = table.selectedItems()
+        """Handle keyboard navigation (arrows) — seek to start of current row."""
-        if items:
+        cur = table.currentItem()
-            row = items[0].row()
+        if cur is None or not cur.isSelected():
+            selected = table.selectedItems()
+            if not selected:
+                return
+            cur = selected[-1]
+        start = table.item(cur.row(), 0).data(Qt.ItemDataRole.UserRole + 1)
+        if start is not None:
+            self.seek_requested.emit(float(start))
+
+    def _on_cell_clicked(self, table: QTableWidget, row: int, col: int) -> None:
+        """Click Time → seek to start; click End → seek to last 3s of clip."""
+        if col == 1:
+            end = table.item(row, 1).data(Qt.ItemDataRole.UserRole)
+            if end is not None:
+                self.seek_requested.emit(max(0.0, float(end) - 3.0))
+        else:
             start = table.item(row, 0).data(Qt.ItemDataRole.UserRole + 1)
             if start is not None:
                 self.seek_requested.emit(float(start))
@@ -1362,8 +1379,14 @@ class ScanResultsPanel(QWidget):
             super().keyPressEvent(event)
 
 
+_WAVEFORM_CACHE_DIR = os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+    "cache", "waveforms",
+)
+
+
 class WaveformWorker(QThread):
-    """Extract a low-res waveform envelope in the background."""
+    """Extract a low-res waveform envelope in the background (with disk cache)."""
     done = pyqtSignal(object)  # emits numpy array of peak values
 
     def __init__(self, video_path: str, n_bins: int = 2000):
@@ -1371,9 +1394,22 @@ class WaveformWorker(QThread):
         self._path = video_path
         self._n_bins = n_bins
 
+    @staticmethod
+    def _cache_path(video_path: str) -> str:
+        import hashlib
+        h = hashlib.md5(video_path.encode()).hexdigest()
+        return os.path.join(_WAVEFORM_CACHE_DIR, f"{h}.npy")
+
     def run(self):
         import numpy as np
         try:
+            # Check cache first
+            cache = self._cache_path(self._path)
+            if os.path.exists(cache):
+                peaks = np.load(cache)
+                self.done.emit(peaks)
+                return
+
             cmd = [
                 _bin("ffmpeg"), "-i", self._path,
                 "-vn", "-ac", "1", "-ar", "8000",
@@ -1393,6 +1429,9 @@ class WaveformWorker(QThread):
             mx = peaks.max()
             if mx > 0:
                 peaks = peaks / mx
+            # Save to cache
+            os.makedirs(_WAVEFORM_CACHE_DIR, exist_ok=True)
+            np.save(cache, peaks)
             self.done.emit(peaks)
         except Exception:
             pass
@@ -2694,6 +2733,7 @@ class MainWindow(QMainWindow):
         self._cursor: float = 0.0
         self._export_counter: int = 1
         self._export_worker: ExportWorker | None = None
+        self._export_queue: list[dict] = []
         self._last_export_path: str = ""
         self._overwrite_path: str = ""   # set when a marker is selected for re-export
         self._overwrite_group: list[str] = []  # all output_paths in the selected group
@@ -2959,7 +2999,7 @@ class MainWindow(QMainWindow):
         self._sld_threshold.setDecimals(2)
         self._sld_threshold.setRange(0.0, 1.0)
         self._sld_threshold.setSingleStep(0.01)
-        self._sld_threshold.setValue(0.30)
+        self._sld_threshold.setValue(0.50)
         self._sld_threshold.setPrefix("Thr: ")
         self._sld_threshold.setToolTip("Similarity threshold (0=match everything, 1=exact match)")
 
@@ -4181,6 +4221,8 @@ class MainWindow(QMainWindow):
     def _on_scan_seek(self, t: float) -> None:
         """Seek player when a scan result row is clicked."""
         if self._file_path:
+            if not self._btn_scan_mode.isChecked():
+                self._btn_scan_mode.setChecked(True)
             self._cursor = t
             self._mpv.seek(t)
             self._timeline.set_cursor(t)
@@ -4491,9 +4533,6 @@ class MainWindow(QMainWindow):
         if not self._file_path:
             self._show_status("No video loaded")
             return
-        if self._export_worker and self._export_worker.isRunning():
-            self._show_status("Export already running…")
-            return
         if self._scan_worker and self._scan_worker.isRunning():
             self._show_status("Scan already running")
             return
@@ -4614,38 +4653,77 @@ class MainWindow(QMainWindow):
 
         # Clips go flat inside vid folder, numbered by video
         jobs = []
-        self._auto_export_positions = []
+        positions = []
         for area_idx, group in enumerate(groups):
             group_name = f"{name}_{vid_num:03d}_a{area_idx + 1}"
             for sub, start_t in enumerate(group):
                 fname = f"{group_name}_{sub}{ext}"
                 out = os.path.join(vid_folder, fname)
                 jobs.append((start_t, out, None, 0.5))
-                self._auto_export_positions.append((start_t, out))
+                positions.append((start_t, out))
-
-        self._show_status(f"Auto: exporting {len(jobs)} clips...")
 
         short_side = self._spn_resize.value() or None
-        self._export_short_side = short_side
-        self._export_portrait = "Off"
-        self._export_crop_center = 0.5
-        self._export_format = fmt
-        self._export_clip_count = 1
-        self._export_spread = spread
-        self._export_folder = folder
-        self._export_folder_suffix = ""
-        self._export_profile = self._profile
-
         hw_on = self._chk_hw.isChecked() and self._hw_encoders
         encoder = self._hw_encoders[0] if hw_on else "libx264"
         max_workers = min(self._spn_workers.value(), 3) if hw_on else self._spn_workers.value()
+        is_scan = getattr(self, '_auto_export_no_markers', False)
+
+        batch = {
+            "jobs": jobs,
+            "positions": positions,
+            "file_path": self._file_path,
+            "short_side": short_side,
+            "image_sequence": image_sequence,
+            "max_workers": max_workers,
+            "encoder": encoder,
+            "spread": spread,
+            "folder": folder,
+            "format": fmt,
+            "profile": self._profile,
+            "is_scan": is_scan,
+        }
+
+        if self._export_worker and self._export_worker.isRunning():
+            self._export_queue.append(batch)
+            n = len(self._export_queue)
+            self._show_status(f"Auto: queued ({n} pending)")
+            self._btn_auto_export.setEnabled(True)
+            return
+
+        self._start_export_batch(batch)
+
+    def _start_export_batch(self, batch: dict) -> None:
+        """Start an export batch immediately."""
+        self._auto_export_positions = batch["positions"]
+        self._export_short_side = batch["short_side"]
+        self._export_portrait = "Off"
+        self._export_crop_center = 0.5
+        self._export_format = batch["format"]
+        self._export_clip_count = 1
+        self._export_spread = batch["spread"]
+        self._export_folder = batch["folder"]
+        self._export_folder_suffix = ""
+        self._export_profile = batch["profile"]
+        self._auto_export_no_markers = batch["is_scan"]
+        self._export_batch_file = batch["file_path"]
+
+        # Replace old scan export entries for this video
+        if batch["is_scan"]:
+            fname = os.path.basename(batch["file_path"])
+            n_old = self._db.delete_scan_exports(fname, batch["profile"])
+            if n_old:
+                _log(f"Replacing {n_old} old scan export entries for {fname}")
+
+        n_queued = len(self._export_queue)
+        q_msg = f" ({n_queued} queued)" if n_queued else ""
+        self._show_status(f"Auto: exporting {len(batch['jobs'])} clips...{q_msg}")
 
         self._export_worker = ExportWorker(
-            self._file_path, jobs,
+            batch["file_path"], batch["jobs"],
-            short_side=short_side,
+            short_side=batch["short_side"],
-            image_sequence=image_sequence,
+            image_sequence=batch["image_sequence"],
-            max_workers=max_workers,
+            max_workers=batch["max_workers"],
-            encoder=encoder,
+            encoder=batch["encoder"],
         )
         self._export_worker.finished.connect(self._on_auto_clip_done)
         self._export_worker.all_done.connect(self._on_auto_batch_done)
@@ -4664,10 +4742,11 @@ class MainWindow(QMainWindow):
                 start_t = t
                 break
         is_scan = getattr(self, '_auto_export_no_markers', False)
+        batch_file = getattr(self, '_export_batch_file', self._file_path)
         label = self._txt_label.currentText().strip()
         category = self._cmb_category.currentText()
         self._db.add(
-            os.path.basename(self._file_path),
+            os.path.basename(batch_file),
             start_t,
             path,
             label=label,
@@ -4679,27 +4758,45 @@ class MainWindow(QMainWindow):
             clip_count=1,
             spread=self._export_spread,
             profile=self._export_profile,
-            source_path=self._file_path,
+            source_path=batch_file,
             scan_export=is_scan,
         )
         if not is_scan:
             upsert_clip_annotation(self._export_folder, path, label)
-        self._show_status(f"Auto: {os.path.basename(path)}")
+        n_queued = len(self._export_queue)
+        q_msg = f" ({n_queued} queued)" if n_queued else ""
+        self._show_status(f"Auto: {os.path.basename(path)}{q_msg}")
         _log(f"  auto clip done: {os.path.basename(path)}")
 
     def _on_auto_batch_done(self):
         n = len(self._auto_export_positions)
+        batch_file = getattr(self, '_export_batch_file', self._file_path)
+        batch_profile = self._export_profile
+
+        # Mark the batch's video as done in playlist
+        n_clips = self._db.get_clip_count(os.path.basename(batch_file), batch_profile)
+        self._playlist.mark_done(batch_file, n_clips)
+
+        # If current video matches the batch, refresh its markers
+        if self._file_path == batch_file:
+            self._refresh_markers()
+            self._update_next_label()
+
+        _log(f"Auto export complete: {n} clips ({os.path.basename(batch_file)})")
+
+        # Drain queue
+        if self._export_queue:
+            next_batch = self._export_queue.pop(0)
+            self._show_status(f"Auto: starting next batch ({len(self._export_queue)} remaining)")
+            self._start_export_batch(next_batch)
+            return
+
         self._btn_auto_export.setEnabled(True)
         self._btn_cancel.setEnabled(False)
         self._btn_export.setEnabled(True)
         self._set_subprofile_btns_enabled(True)
         self._auto_export_no_markers = False
-        self._refresh_markers()
-        n_clips = self._db.get_clip_count(os.path.basename(self._file_path), self._profile)
-        self._playlist.mark_done(self._file_path, n_clips)
-        self._update_next_label()
         self._show_status(f"Auto export complete: {n} clips")
-        _log(f"Auto export complete: {n} clips")
 
     def _jump_to_next_scan_region(self) -> None:
         regions = sorted(self._timeline._scan_regions, key=lambda r: r[0])
@@ -5005,7 +5102,9 @@ class MainWindow(QMainWindow):
             self._show_status("Cancelling export…")
 
     def _on_export_cancelled(self):
-        _log("Export cancelled")
+        n_dropped = len(self._export_queue)
+        self._export_queue.clear()
+        _log(f"Export cancelled (dropped {n_dropped} queued)")
         self._btn_export.setEnabled(True)
         self._btn_auto_export.setEnabled(True)
         self._set_subprofile_btns_enabled(True)
@@ -5016,7 +5115,10 @@ class MainWindow(QMainWindow):
         n_clips = self._db.get_clip_count(os.path.basename(self._file_path), self._profile)
         if n_clips:
             self._playlist.mark_done(self._file_path, n_clips)
-        self._show_status("Export cancelled", 4000)
+        msg = "Export cancelled"
+        if n_dropped:
+            msg += f" ({n_dropped} queued batches dropped)"
+        self._show_status(msg, 4000)
 
     def changeEvent(self, event):
         super().changeEvent(event)