Clean push: Removed heavy files & added only latest snapshot
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254
qt_app_pyside1/ui/video_detection_tab.py
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254
qt_app_pyside1/ui/video_detection_tab.py
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from PySide6.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QSlider, QCheckBox, QFileDialog, QSizePolicy, QGridLayout, QFrame, QSpacerItem
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from PySide6.QtCore import Signal, Qt
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from PySide6.QtGui import QPixmap, QIcon, QFont
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class DiagnosticOverlay(QFrame):
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"""Semi-transparent overlay for diagnostics."""
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def __init__(self, parent=None):
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super().__init__(parent)
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self.setStyleSheet("""
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background: rgba(0,0,0,0.5);
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border-radius: 8px;
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color: #fff;
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font-family: 'Consolas', 'SF Mono', 'monospace';
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font-size: 13px;
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""")
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# self.setFixedWidth(260) # Remove fixed width
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self.setFixedHeight(90)
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self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) # Allow horizontal stretch
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self.setAttribute(Qt.WA_TransparentForMouseEvents)
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layout = QVBoxLayout(self)
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layout.setContentsMargins(12, 8, 12, 8)
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self.model_label = QLabel("Model: -")
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self.device_label = QLabel("Device: -")
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self.stats_label = QLabel("Cars: 0 | Trucks: 0 | Ped: 0 | TLights: 0 | Moto: 0")
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for w in [self.model_label, self.device_label, self.stats_label]:
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w.setStyleSheet("color: #fff;")
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layout.addWidget(w)
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layout.addStretch(1)
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def update_overlay(self, model, device, cars, trucks, peds, tlights, motorcycles):
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self.model_label.setText(f"Model: {model}")
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self.device_label.setText(f"Device: {device}")
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self.stats_label.setText(f"Cars: {cars} | Trucks: {trucks} | Ped: {peds} | TLights: {tlights} | Moto: {motorcycles}")
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class VideoDetectionTab(QWidget):
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file_selected = Signal(str)
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play_clicked = Signal()
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pause_clicked = Signal()
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stop_clicked = Signal()
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detection_toggled = Signal(bool)
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screenshot_clicked = Signal()
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seek_changed = Signal(int)
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auto_select_model_device = Signal() # New signal for auto model/device selection
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def __init__(self):
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super().__init__()
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self.video_loaded = False
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grid = QGridLayout(self)
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grid.setContentsMargins(32, 24, 32, 24)
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grid.setSpacing(0)
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# File select bar (top)
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file_bar = QHBoxLayout()
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self.file_btn = QPushButton()
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self.file_btn.setIcon(QIcon.fromTheme("folder-video"))
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self.file_btn.setText("Select Video")
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self.file_btn.setStyleSheet("padding: 8px 18px; border-radius: 8px; background: #232323; color: #fff;")
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self.file_label = QLabel("No file selected")
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self.file_label.setStyleSheet("color: #bbb; font-size: 13px;")
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self.file_btn.clicked.connect(self._select_file)
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file_bar.addWidget(self.file_btn)
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file_bar.addWidget(self.file_label)
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file_bar.addStretch(1)
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# Video display area (centered, scalable)
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video_frame = QFrame()
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video_frame.setStyleSheet("""
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background: #121212;
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border: 1px solid #424242;
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border-radius: 8px;
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""")
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video_frame.setMinimumSize(640, 360)
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video_frame.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
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video_layout = QVBoxLayout(video_frame)
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video_layout.setContentsMargins(0, 0, 0, 0)
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video_layout.setAlignment(Qt.AlignCenter)
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self.video_label = QLabel()
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self.video_label.setAlignment(Qt.AlignCenter)
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self.video_label.setStyleSheet("background: transparent; color: #888; font-size: 18px;")
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self.video_label.setText("No video loaded. Please select a file.")
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self.video_label.setMinimumSize(640, 360)
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self.video_label.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
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video_layout.addWidget(self.video_label)
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# Diagnostic overlay (now below video, not over it)
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self.overlay = DiagnosticOverlay()
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self.overlay.setStyleSheet(self.overlay.styleSheet() + "border: 1px solid #03DAC5;")
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self.overlay.setFixedHeight(90)
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# FPS and Inference badges (below video)
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self.fps_badge = QLabel("FPS: --")
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self.fps_badge.setStyleSheet("background: #27ae60; color: #fff; border-radius: 12px; padding: 4px 24px; font-weight: bold; font-size: 15px;")
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self.fps_badge.setAlignment(Qt.AlignCenter)
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self.inference_badge = QLabel("Inference: -- ms")
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self.inference_badge.setStyleSheet("background: #2980b9; color: #fff; border-radius: 12px; padding: 4px 24px; font-weight: bold; font-size: 15px;")
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self.inference_badge.setAlignment(Qt.AlignCenter)
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# Horizontal layout for overlay and badges
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self.badge_bar = QHBoxLayout()
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self.badge_bar.setContentsMargins(0, 8, 0, 8)
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self.badge_bar.addWidget(self.fps_badge)
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self.badge_bar.addSpacing(12)
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self.badge_bar.addWidget(self.inference_badge)
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self.badge_bar.addSpacing(18)
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self.badge_bar.addWidget(self.overlay) # Overlay will stretch to fill right side
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self.badge_bar.addStretch(10)
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video_layout.addStretch(1) # Push badge bar to the bottom
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video_layout.addLayout(self.badge_bar)
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# Control bar (bottom)
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control_bar = QHBoxLayout()
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control_bar.setContentsMargins(0, 16, 0, 0)
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# Playback controls
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self.play_btn = QPushButton()
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self.play_btn.setIcon(QIcon.fromTheme("media-playback-start"))
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self.play_btn.setToolTip("Play")
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self.play_btn.setFixedSize(48, 48)
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self.play_btn.setEnabled(False)
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self.play_btn.setStyleSheet(self._button_style())
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self.pause_btn = QPushButton()
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self.pause_btn.setIcon(QIcon.fromTheme("media-playback-pause"))
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self.pause_btn.setToolTip("Pause")
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self.pause_btn.setFixedSize(48, 48)
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self.pause_btn.setEnabled(False)
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self.pause_btn.setStyleSheet(self._button_style())
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self.stop_btn = QPushButton()
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self.stop_btn.setIcon(QIcon.fromTheme("media-playback-stop"))
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self.stop_btn.setToolTip("Stop")
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self.stop_btn.setFixedSize(48, 48)
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self.stop_btn.setEnabled(False)
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self.stop_btn.setStyleSheet(self._button_style())
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for btn, sig in zip([self.play_btn, self.pause_btn, self.stop_btn], [self.play_clicked.emit, self.pause_clicked.emit, self.stop_clicked.emit]):
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btn.clicked.connect(sig)
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control_bar.addWidget(self.play_btn)
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control_bar.addWidget(self.pause_btn)
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control_bar.addWidget(self.stop_btn)
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control_bar.addSpacing(16)
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# Progress bar
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self.progress = QSlider(Qt.Horizontal)
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self.progress.setStyleSheet("QSlider::groove:horizontal { height: 6px; background: #232323; border-radius: 3px; } QSlider::handle:horizontal { background: #03DAC5; border-radius: 8px; width: 18px; }")
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self.progress.setMinimumWidth(240)
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self.progress.setEnabled(False)
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self.progress.valueChanged.connect(self.seek_changed.emit)
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control_bar.addWidget(self.progress, 2)
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self.timestamp = QLabel("00:00 / 00:00")
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self.timestamp.setStyleSheet("color: #bbb; font-size: 13px;")
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control_bar.addWidget(self.timestamp)
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control_bar.addSpacing(16)
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# Detection toggle & screenshot
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self.detection_toggle = QCheckBox("Enable Detection")
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self.detection_toggle.setChecked(True)
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self.detection_toggle.setStyleSheet("color: #fff; font-size: 14px;")
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self.detection_toggle.setEnabled(False)
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self.detection_toggle.toggled.connect(self.detection_toggled.emit)
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control_bar.addWidget(self.detection_toggle)
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self.screenshot_btn = QPushButton()
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self.screenshot_btn.setIcon(QIcon.fromTheme("camera-photo"))
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self.screenshot_btn.setText("Screenshot")
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self.screenshot_btn.setToolTip("Save current frame as image")
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self.screenshot_btn.setEnabled(False)
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self.screenshot_btn.setStyleSheet(self._button_style())
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self.screenshot_btn.clicked.connect(self.screenshot_clicked.emit)
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control_bar.addWidget(self.screenshot_btn)
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control_bar.addStretch(1)
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# Layout grid
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grid.addLayout(file_bar, 0, 0, 1, 1)
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grid.addWidget(video_frame, 1, 0, 1, 1)
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grid.addLayout(self.badge_bar, 2, 0, 1, 1)
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grid.addLayout(control_bar, 3, 0, 1, 1)
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grid.setRowStretch(1, 1)
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self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
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def _button_style(self):
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return """
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QPushButton {
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background: #232323;
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border-radius: 24px;
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color: #fff;
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font-size: 15px;
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border: none;
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}
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QPushButton:hover {
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background: #03DAC5;
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color: #222;
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}
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QPushButton:pressed {
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background: #018786;
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}
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"""
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def _select_file(self):
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file_path, _ = QFileDialog.getOpenFileName(self, "Select Video File", "", "Video Files (*.mp4 *.avi *.mov *.mkv *.webm);;All Files (*)")
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if file_path:
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self.file_label.setText(file_path)
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self.file_selected.emit(file_path)
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self.video_loaded = True
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self._enable_controls(True)
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self.video_label.setText("")
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self.auto_select_model_device.emit() # Request auto model/device selection
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def _enable_controls(self, enabled):
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self.play_btn.setEnabled(enabled)
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self.pause_btn.setEnabled(enabled)
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self.stop_btn.setEnabled(enabled)
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self.progress.setEnabled(enabled)
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self.detection_toggle.setEnabled(enabled)
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self.screenshot_btn.setEnabled(enabled)
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if enabled:
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self.auto_select_model_device.emit() # Also trigger auto-select when controls are enabled
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def update_display(self, pixmap):
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# Maintain aspect ratio
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if pixmap:
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scaled = pixmap.scaled(self.video_label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
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self.video_label.setPixmap(scaled)
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self._set_controls_enabled(True)
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self.video_label.setStyleSheet("background: transparent; color: #888; font-size: 18px;")
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else:
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self.video_label.clear()
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self.video_label.setText("No video loaded. Please select a video file.")
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self._set_controls_enabled(False)
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self.video_label.setStyleSheet("background: transparent; color: #F44336; font-size: 18px;")
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def _set_controls_enabled(self, enabled):
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for btn in [self.play_btn, self.pause_btn, self.stop_btn, self.progress, self.detection_toggle, self.screenshot_btn]:
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btn.setEnabled(enabled)
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def update_stats(self, stats):
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# Accepts a stats dict for extensibility
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cars = stats.get('cars', 0)
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trucks = stats.get('trucks', 0)
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peds = stats.get('peds', 0)
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tlights = stats.get('tlights', 0)
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motorcycles = stats.get('motorcycles', 0)
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fps = stats.get('fps', None)
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# Try all possible keys for inference time
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inference = stats.get('inference', stats.get('detection_time', stats.get('detection_time_ms', None)))
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model = stats.get('model', stats.get('model_name', '-'))
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device = stats.get('device', stats.get('device_name', '-'))
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# Update overlay
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self.overlay.update_overlay(model, device, cars, trucks, peds, tlights, motorcycles)
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# Update FPS and Inference badges
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if fps is not None:
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self.fps_badge.setText(f"FPS: {fps:.2f}")
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else:
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self.fps_badge.setText("FPS: --")
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if inference is not None:
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self.inference_badge.setText(f"Inference: {inference:.1f} ms")
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else:
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self.inference_badge.setText("Inference: -- ms")
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def update_progress(self, value, max_value, timestamp):
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self.progress.setMaximum(max_value)
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self.progress.setValue(value)
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# Format timestamp as string (e.g., "00:00 / 00:00" or just str)
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if isinstance(timestamp, float) or isinstance(timestamp, int):
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timestamp_str = f"{timestamp:.2f}"
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else:
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timestamp_str = str(timestamp)
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self.timestamp.setText(timestamp_str)
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