videodb skills update: add reference files for videodb skills

skills/videodb/reference/use-cases.md

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+# Use Cases
+
+Common workflows and what VideoDB enables. For code details, see [api-reference.md](api-reference.md), [capture.md](capture.md), [editor.md](editor.md), and [search.md](search.md).
+
+---
+
+## Video Search & Highlights
+
+### Create Highlight Reels
+Upload a long video (conference talk, lecture, meeting recording), search for key moments by topic ("product announcement", "Q&A session", "demo"), and automatically compile matching segments into a shareable highlight reel.
+
+### Build Searchable Video Libraries
+Batch upload videos to a collection, index them for spoken word search, then query across the entire library. Find specific topics across hundreds of hours of content instantly.
+
+### Extract Specific Clips
+Search for moments matching a query ("budget discussion", "action items") and extract each matching segment as an individual clip with its own stream URL.
+
+---
+
+## Video Enhancement
+
+### Add Professional Polish
+Take raw footage and enhance it with:
+- Auto-generated subtitles from speech
+- Custom thumbnails at specific timestamps
+- Background music overlays
+- Intro/outro sequences with generated images
+
+### AI-Enhanced Content
+Combine existing video with generative AI:
+- Generate text summaries from transcript
+- Create background music matching video duration
+- Generate title cards and overlay images
+- Mix all elements into a polished final output
+
+---
+
+## Real-Time Capture (Desktop/Meeting)
+
+### Screen + Audio Recording with AI
+Capture screen, microphone, and system audio simultaneously. Get real-time:
+- **Live transcription** - Speech to text as it happens
+- **Audio summaries** - Periodic AI-generated summaries of discussions
+- **Visual indexing** - AI descriptions of screen activity
+
+### Meeting Capture with Summarization
+Record meetings with live transcription of all participants. Get periodic summaries with key discussion points, decisions, and action items delivered in real-time.
+
+### Screen Activity Tracking
+Track what's happening on screen with AI-generated descriptions:
+- "User is browsing a spreadsheet in Google Sheets"
+- "User switched to a code editor with a Python file"
+- "Video call with screen sharing enabled"
+
+### Post-Session Processing
+After capture ends, the recording is exported as a permanent video. Then:
+- Generate searchable transcript
+- Search for specific topics within the recording
+- Extract clips of important moments
+- Share via stream URL or player link
+
+---
+
+## Live Stream Intelligence (RTSP/RTMP)
+
+### Connect External Streams
+Ingest live video from RTSP/RTMP sources (security cameras, encoders, broadcasts). Process and index content in real-time.
+
+### Real-Time Event Detection
+Define events to detect in live streams:
+- "Person entering restricted area"
+- "Traffic violation at intersection"
+- "Product visible on shelf"
+
+Get alerts via WebSocket or webhook when events occur.
+
+### Live Stream Search
+Search across recorded live stream content. Find specific moments and generate clips from hours of continuous footage.
+
+---
+
+## Content Moderation & Safety
+
+### Automated Content Review
+Index video scenes with AI and search for problematic content. Flag videos containing violence, inappropriate content, or policy violations.
+
+### Profanity Detection
+Detect and locate profanity in audio. Optionally overlay beep sounds at detected timestamps.
+
+---
+
+## Platform Integration
+
+### Social Media Formatting
+Reframe videos for different platforms:
+- Vertical (9:16) for TikTok, Reels, Shorts
+- Square (1:1) for Instagram feed
+- Landscape (16:9) for YouTube
+
+### Transcode for Delivery
+Change resolution, bitrate, or quality for different delivery targets. Output optimized streams for web, mobile, or broadcast.
+
+### Generate Shareable Links
+Every operation produces playable stream URLs. Embed in web players, share directly, or integrate with existing platforms.
+
+---
+
+## Workflow Summary
+
+| Goal | VideoDB Approach |
+|------|------------------|
+| Find moments in video | Index spoken words/scenes → Search → Compile clips |
+| Create highlights | Search multiple topics → Build timeline → Generate stream |
+| Add subtitles | Index spoken words → Add subtitle overlay |
+| Record screen + AI | Start capture → Run AI pipelines → Export video |
+| Monitor live streams | Connect RTSP → Index scenes → Create alerts |
+| Reformat for social | Reframe to target aspect ratio |
+| Combine clips | Build timeline with multiple assets → Generate stream |