Advanced Video Editor Pro - UI Prototype
I. Main Window Layout
The UI will be divided into a few key, resizable panels:

File & Batch Queue Panel (Left Sidebar): For managing input files, folders, and the batch processing queue.
Preview Panel (Top Center): Displays the currently selected video.
Timeline Panel (Bottom Center): Shows video and audio tracks, keyframes, and effect durations.
Editing Controls Panel (Right Sidebar): Contains all the tools and effect controls.
II. File & Batch Queue Panel (Left Sidebar)
File/Folder Selection:
&lt;span style="color:green; font-size:1.5em;">🟢&lt;/span> Add Files Button: Opens a file dialog to select individual video files.
&lt;span style="color:red; font-size:1.5em;">🔴&lt;/span> Add Folder Button: Opens a folder dialog to add all compatible video files within a folder (and optionally its subfolders).
File List: Displays added files as a list. Each item shows:
Thumbnail (optional, toggleable)
Filename
Duration
Status (e.g., "Pending", "Processing", "Done", "Error")
Checkbox for including in batch processing.
Batch Processing Controls:
Select All/Deselect All Checkbox.
"Apply Current Settings to Selected" Button: Copies the current effect settings from the Editing Controls Panel to all checked files in the batch.
Output Settings (Global for Batch, or per file if advanced):
&lt;span style="color:blue; font-size:1.5em;">🔵&lt;/span> Output Folder Button: Opens a folder dialog to select the destination for processed files.
Output Format Dropdown (e.g., MP4, MOV, MKV)
Resolution Dropdown (e.g., Source, 1080p, 720p)
Quality Slider/Preset (Low, Medium, High, Custom)
"Start Batch Process" Button.
Progress Bar: Shows overall batch processing progress.
"Clear Queue" / "Clear Completed" Buttons.
III. Preview Panel (Top Center)
Video Display Area: Large area to show the video.
Playback Controls:
Play/Pause Button
Stop Button
Frame Back/Forward Buttons
Seek Bar with Timecode Display (Current Time / Total Duration)
Volume Slider/Mute Button
Loop Toggle Button
View Options:
Aspect Ratio Control (Original, 16:9, 4:3, etc.)
"Show Safe Zones" Toggle
IV. Timeline Panel (Bottom Center)
Track Area:
Video Track(s): Shows video clips, transitions. Visual representation of applied effects over time (e.g., a colored segment indicating a speed change).
Audio Track(s): Shows audio waveforms.
Overlay Track(s): For image/text overlays.
Timeline Controls:
Zoom In/Out Timeline (horizontal for time, vertical for track height)
Scroll Bars
"Split Clip" Tool
"Link/Unlink Audio/Video" Tool
Keyframe Markers (for effects that can be animated over time, like zoom or opacity)
Ruler: Displays time units.
V. Editing Controls Panel (Right Sidebar)
This panel will use a tabbed or accordion interface to organize the various effects and tools to keep it clean.

Tab/Section 1: Transform & Crop

Zoom:
Slider: "Zoom Level" (e.g., 100% to 500%)
Input Fields: X Offset, Y Offset (for panning within the zoomed area)
Checkbox: "Animate" (enables keyframing for zoom and pan on the timeline)
Flip:
Button: "Flip Horizontal"
Button: "Flip Vertical"
Rotate:
Slider/Input Field: "Angle" (0-360 degrees)
Crop:
Input Fields: Top, Bottom, Left, Right (pixels or percentage)
Visual Cropping Handles directly on the Preview Panel when this section is active.
Tab/Section 2: Speed & Time

Speed Control:
Slider/Input Field: "Speed Multiplier" (e.g., 0.25x to 4x)
Checkbox: "Maintain Audio Pitch" (if speed changes audio)
Options: "Ripple Edit" (adjust subsequent clips on timeline)
Tab/Section 3: Effects & Filters

Distortion Effects:
Dropdown: "Select Distortion Type" (e.g., Barrel, Pincushion, Fisheye, Wave, Swirl)
Sliders/Input Fields: Parameters specific to the selected distortion (e.g., "Amount", "Frequency", "Center X/Y").
Checkbox: "Animate"
Color Correction/Grading (Basic):
Sliders: Brightness, Contrast, Saturation
Other Filters (Placeholder for future expansion, e.g., Blur, Sharpen)
Tab/Section 4: Overlays

Add Overlay:
Button: "Add Image/Video Overlay" (opens file dialog)
Button: "Add Text Overlay"
Selected Overlay Properties: (Displays when an overlay is selected on the timeline/preview)
Opacity Control: Slider (0% to 100%)
Position (X, Y coordinates)
Size (Width, Height or Scale slider)
Rotation
Blend Mode Dropdown (e.g., Normal, Multiply, Screen) - Advanced
Checkbox: "Animate" (for opacity, position, size)
Tab/Section 5: Audio

Volume Adjustment: Slider for selected clip.
Voice Pitch Changer:
Slider/Input Field: "Pitch Shift" (e.g., -12 to +12 semitones)
Dropdown: "Algorithm" (e.g., High Quality, Low Latency) - Advanced
Basic Audio Filters: (e.g., Noise Reduction, Equalizer - Placeholders)
Tab/Section 6: Metadata

Metadata Rewriter:
Input Fields for common tags: Title, Author, Copyright, Description, Keywords, Date.
Button: "Read Metadata from Source"
Button: "Apply Metadata to Output"
Checkbox: "Apply to all in batch" (if applicable)
VI. General UI/UX Considerations
Clean & Modern Style:
Flat design elements.
Consistent iconography.
Clear typography (e.g., Inter, Roboto, Open Sans).
Good contrast for readability.
Responsive panel resizing.
Feedback:
Tooltips for buttons and controls.
Loading indicators for processing tasks.
Clear error messages.
Undo/Redo Functionality.
Project Save/Load.
Keyboard Shortcuts for common actions.
This prototype structure provides a comprehensive set of features while aiming for an intuitive workflow. The distinct panels help separate concerns, and the tabbed approach within the Editing Controls panel prevents overwhelming the user. The green, red, and blue buttons provide clear visual cues for their specific file/folder operations. Batch processing is integrated directly into the file management area for efficiency.