Add FFmpeg updater module and GUI integration

Introduces a new FFmpeg updater module for checking and updating FFmpeg to the latest essentials build, with progress reporting and version comparison. Updates language files with new translation keys for the updater in multiple languages. Refactors Windows FFmpeg installation to use the new updater logic. Adds UpdaterTabWidget to the GUI dialogs for integration of the updater into the application's interface.

src/gui/ytsage_gui_dialogs/ytsage_dialogs_ffmpeg.py

@@ -3,9 +3,7 @@ FFmpeg installation dialogs for YTSage application.
 Contains dialogs and threads for checking and installing FFmpeg.
 """
 
-import contextlib
 import webbrowser
-from io import StringIO
 
 from PySide6.QtCore import Qt, QThread, Signal
 from PySide6.QtGui import QIcon
@@ -20,15 +18,12 @@ class FFmpegInstallThread(QThread):
     progress = Signal(str)
 
     def run(self) -> None:
-        # Redirect stdout to capture progress messages
-        output = StringIO()
-        with contextlib.redirect_stdout(output):
-            success = auto_install_ffmpeg()
-
-        # Process captured output and emit progress signals
-        for line in output.getvalue().splitlines():
-            self.progress.emit(line)
-
+        # Use a callback to capture progress instead of stdout redirection
+        def progress_callback(msg: str):
+            self.progress.emit(msg)
+        
+        # Install FFmpeg with progress callback
+        success = auto_install_ffmpeg(progress_callback=progress_callback)
         self.finished.emit(success)
 
 
@@ -36,9 +31,9 @@ class FFmpegCheckDialog(QDialog):
     def __init__(self, parent=None) -> None:
         super().__init__(parent)
         self.setWindowTitle("FFmpeg Installation")
-        self.setMinimumWidth(450)
-        self.setMinimumHeight(200)
-        self.resize(450, 220)
+        self.setMinimumWidth(500)
+        self.setMinimumHeight(280)
+        self.resize(500, 300)
 
         # Set the window icon to match the main app
         if parent and parent.windowIcon():
@@ -67,11 +62,12 @@ class FFmpegCheckDialog(QDialog):
         self.message_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
         layout.addWidget(self.message_label)
 
-        # Progress label with improved styling and compact height
+        # Progress label with improved styling
         self.progress_label = QLabel("")
         self.progress_label.setWordWrap(True)
-        self.progress_label.setMinimumHeight(60)  # Smaller but visible area
-        self.progress_label.setMaximumHeight(80)  # Limit maximum height
+        self.progress_label.setMinimumHeight(80)
+        self.progress_label.setMaximumHeight(120)
+        self.progress_label.setAlignment(Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignTop)
         self.progress_label.setStyleSheet(
             """
             QLabel {
@@ -79,22 +75,22 @@ class FFmpegCheckDialog(QDialog):
                 color: #cccccc;
                 border: 1px solid #3d3d3d;
                 border-radius: 6px;
-                padding: 8px;
+                padding: 12px;
                 font-family: 'Consolas', 'Courier New', monospace;
                 font-size: 11px;
-                line-height: 1.2;
+                line-height: 1.4;
             }
         """
         )
         self.progress_label.hide()
         layout.addWidget(self.progress_label)
 
-        # Add minimal stretch - just enough to push buttons down slightly
-        layout.addSpacing(10)
+        # Add stretch to push buttons to bottom
+        layout.addStretch()
 
         # Buttons container - simple approach that should work
         button_layout = QHBoxLayout()
-        button_layout.setSpacing(15)  # Simple spacing
+        button_layout.setSpacing(12)
 
         # Install button
         self.install_btn = QPushButton("Install FFmpeg")
@@ -148,6 +144,7 @@ class FFmpegCheckDialog(QDialog):
 
         # Initialize installation thread
         self.install_thread = None
+        self.progress_messages = []  # Store progress messages
 
     def start_installation(self) -> None:
         self.install_btn.setEnabled(False)
@@ -165,6 +162,7 @@ class FFmpegCheckDialog(QDialog):
             return
 
         self.message_label.setText("Installing FFmpeg... Please wait")
+        self.progress_messages = []  # Clear previous messages
         self.progress_label.show()
 
         self.install_thread = FFmpegInstallThread()
@@ -173,7 +171,13 @@ class FFmpegCheckDialog(QDialog):
         self.install_thread.start()
 
     def update_progress(self, message) -> None:
-        self.progress_label.setText(message)
+        # Keep only the last 5 messages to avoid overflow
+        self.progress_messages.append(message)
+        if len(self.progress_messages) > 5:
+            self.progress_messages.pop(0)
+        
+        # Display the messages
+        self.progress_label.setText("\n".join(self.progress_messages))
 
     def installation_finished(self, success) -> None:
         if success: