Implement video processing module with FFmpeg conversion, OpenCV metadata extraction, and file system repository
- Added FFmpegVideoConverter for video format conversion using FFmpeg. - Implemented NoOpVideoConverter for scenarios where FFmpeg is unavailable. - Created OpenCVMetadataExtractor for extracting video metadata. - Developed FileSystemVideoRepository for managing video files in the file system. - Integrated video services with dependency injection in VideoModule. - Established API routes for video management and streaming. - Added request/response schemas for video metadata and streaming information. - Implemented caching mechanisms for video streaming. - Included error handling and logging throughout the module.
This commit is contained in:
Alireza Vaezi
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docs/REACT_INTEGRATION_GUIDE.md
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docs/REACT_INTEGRATION_GUIDE.md
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# 🚀 React Frontend Integration Guide - MP4 Update
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## 🎯 Quick Summary for React Team
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The camera system now records in **MP4 format** instead of AVI. This provides better web compatibility and smaller file sizes.
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## 🔄 What You Need to Update
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### 1. File Extension Handling
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```javascript
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// OLD: Only checked for .avi
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const isVideoFile = (filename) => filename.endsWith('.avi');
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// NEW: Check for both formats
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const isVideoFile = (filename) => {
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return filename.endsWith('.mp4') || filename.endsWith('.avi');
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};
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// Video MIME types
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const getVideoMimeType = (filename) => {
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if (filename.endsWith('.mp4')) return 'video/mp4';
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if (filename.endsWith('.avi')) return 'video/x-msvideo';
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return 'video/mp4'; // default for new files
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};
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```
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### 2. Video Player Component
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```jsx
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// MP4 files work better with HTML5 video
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const VideoPlayer = ({ videoUrl, filename }) => {
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const mimeType = getVideoMimeType(filename);
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return (
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<video controls width="100%" height="auto">
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<source src={videoUrl} type={mimeType} />
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Your browser does not support the video tag.
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</video>
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);
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};
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```
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### 3. Camera Configuration Interface
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Add these new fields to your camera config forms:
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```jsx
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const CameraConfigForm = () => {
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const [config, setConfig] = useState({
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// ... existing fields
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video_format: 'mp4', // 'mp4' or 'avi'
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video_codec: 'mp4v', // 'mp4v', 'XVID', 'MJPG'
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video_quality: 95 // 0-100
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});
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return (
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<form>
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{/* ... existing fields */}
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<div className="video-settings">
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<h3>Video Recording Settings</h3>
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<select
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value={config.video_format}
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onChange={(e) => setConfig({...config, video_format: e.target.value})}
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>
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<option value="mp4">MP4 (Recommended)</option>
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<option value="avi">AVI (Legacy)</option>
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</select>
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<select
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value={config.video_codec}
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onChange={(e) => setConfig({...config, video_codec: e.target.value})}
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>
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<option value="mp4v">MPEG-4 (mp4v)</option>
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<option value="XVID">Xvid</option>
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<option value="MJPG">Motion JPEG</option>
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</select>
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<input
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type="range"
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min="50"
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max="100"
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value={config.video_quality}
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onChange={(e) => setConfig({...config, video_quality: parseInt(e.target.value)})}
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/>
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<label>Quality: {config.video_quality}%</label>
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<div className="warning">
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⚠️ Video format changes require camera restart
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</div>
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</div>
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</form>
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);
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};
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```
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## 📡 API Response Changes
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### Camera Configuration Response
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```json
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{
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"name": "camera1",
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"machine_topic": "blower_separator",
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"storage_path": "/storage/camera1",
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"exposure_ms": 0.3,
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"gain": 4.0,
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"target_fps": 0,
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"enabled": true,
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"video_format": "mp4",
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"video_codec": "mp4v",
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"video_quality": 95,
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"auto_start_recording_enabled": true,
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"auto_recording_max_retries": 3,
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"auto_recording_retry_delay_seconds": 2,
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// ... other existing fields
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}
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```
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### Video File Listings
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```json
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{
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"videos": [
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{
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"file_id": "camera1_recording_20250804_143022.mp4",
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"filename": "camera1_recording_20250804_143022.mp4",
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"format": "mp4",
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"file_size_bytes": 31457280,
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"created_at": "2025-08-04T14:30:22"
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}
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]
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}
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```
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## 🎨 UI/UX Improvements
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### File Size Display
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```javascript
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// MP4 files are ~40% smaller
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const formatFileSize = (bytes) => {
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const mb = bytes / (1024 * 1024);
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return `${mb.toFixed(1)} MB`;
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};
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// Show format in file listings
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const FileListItem = ({ video }) => (
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<div className="file-item">
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<span className="filename">{video.filename}</span>
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<span className={`format ${video.format}`}>
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{video.format.toUpperCase()}
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</span>
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<span className="size">{formatFileSize(video.file_size_bytes)}</span>
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</div>
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);
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```
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### Format Indicators
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```css
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.format.mp4 {
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background: #4CAF50;
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color: white;
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padding: 2px 6px;
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border-radius: 3px;
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font-size: 0.8em;
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}
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.format.avi {
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background: #FF9800;
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color: white;
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padding: 2px 6px;
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border-radius: 3px;
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font-size: 0.8em;
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}
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```
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## ⚡ Performance Benefits
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### Streaming Improvements
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- **Faster Loading**: MP4 files start playing sooner
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- **Better Seeking**: More responsive video scrubbing
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- **Mobile Friendly**: Better iOS/Android compatibility
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- **Bandwidth Savings**: 40% smaller files = faster transfers
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### Implementation Tips
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```javascript
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// Preload video metadata for better UX
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const VideoThumbnail = ({ videoUrl }) => (
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<video
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preload="metadata"
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poster={`${videoUrl}?t=1`} // Thumbnail at 1 second
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onLoadedMetadata={(e) => {
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console.log('Duration:', e.target.duration);
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}}
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>
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<source src={videoUrl} type="video/mp4" />
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</video>
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);
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```
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## 🔧 Configuration Management
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### Restart Warning Component
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```jsx
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const RestartWarning = ({ show }) => {
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if (!show) return null;
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return (
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<div className="alert alert-warning">
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<strong>⚠️ Restart Required</strong>
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<p>Video format changes require a camera service restart to take effect.</p>
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<button onClick={handleRestart}>Restart Camera Service</button>
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</div>
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);
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};
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```
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### Settings Validation
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```javascript
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const validateVideoSettings = (settings) => {
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const errors = {};
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if (!['mp4', 'avi'].includes(settings.video_format)) {
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errors.video_format = 'Must be mp4 or avi';
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}
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if (!['mp4v', 'XVID', 'MJPG'].includes(settings.video_codec)) {
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errors.video_codec = 'Invalid codec';
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}
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if (settings.video_quality < 50 || settings.video_quality > 100) {
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errors.video_quality = 'Quality must be between 50-100';
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}
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return errors;
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};
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```
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## 📱 Mobile Considerations
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### Responsive Video Player
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```jsx
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const ResponsiveVideoPlayer = ({ videoUrl, filename }) => (
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<div className="video-container">
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<video
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controls
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playsInline // Important for iOS
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preload="metadata"
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style={{ width: '100%', height: 'auto' }}
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>
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<source src={videoUrl} type={getVideoMimeType(filename)} />
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<p>Your browser doesn't support HTML5 video.</p>
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</video>
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</div>
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);
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```
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## 🧪 Testing Checklist
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- [ ] Video playback works with new MP4 files
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- [ ] File extension filtering includes both .mp4 and .avi
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- [ ] Camera configuration UI shows video format options
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- [ ] Restart warning appears for video format changes
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- [ ] File size displays are updated for smaller MP4 files
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- [ ] Mobile video playback works correctly
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- [ ] Video streaming performance is improved
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- [ ] Backward compatibility with existing AVI files
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## 📞 Support
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If you encounter issues:
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1. **Video won't play**: Check browser console for codec errors
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2. **File size unexpected**: Verify quality settings in camera config
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3. **Streaming slow**: Compare MP4 vs AVI performance
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4. **Mobile issues**: Ensure `playsInline` attribute is set
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The MP4 update provides significant improvements in web compatibility and performance while maintaining full backward compatibility with existing AVI files.
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