📹 Video Feed App (iOS) – The Ultimate Video Experience

This is a Swift iOS video feed app built using Protocol-Oriented Programming (POP) and MVVM architecture. It delivers a seamless, high-performance video experience with Cloudinary’s video streaming, Adaptive Bitrate (ABR) optimization, and on-the-fly transcoding.

With a smooth vertical scrolling feed, videos instantly load and auto-play, ensuring a highly immersive and optimized viewing experience.

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🚀 Features

✅ Full-Screen Video Feed – Each video fully utilizes the available screen space.
✅ Auto-Playing Videos – Videos automatically play when visible and pause when scrolled away.
✅ Looping Playback – Continuous looping without flickering or buffering.
✅ Cloudinary Video Optimization – Real-time video adaptation for optimal playback.
✅ Adaptive Bitrate (ABR) Streaming – Ensures the best possible video quality based on network speed.
✅ Smart Prefetching – Videos preloaded for instant playback without excessive data usage.
✅ Efficient Video Compression – Optimized transcoding reduces buffering and improves performance.
✅ On-the-Fly Resolution Scaling – Video quality dynamically adjusts based on device capabilities.

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🛠 Technologies Used

• Swift 5 – Modern and efficient coding.
• UIKit & Storyboards – UI is built using Storyboards.
• AVPlayerViewController – Handles video playback.
• Cloudinary iOS SDK – Streams, transcodes, and optimizes videos.
• MVVM Architecture – Clean separation of concerns.
• Protocol-Oriented Programming (POP) – Modular, reusable components.
• UICollectionView – Custom layout for smooth vertical scrolling.

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🎥 Optimized Video Delivery with Cloudinary

This app leverages Cloudinary’s powerful video optimization features to provide the ultimate viewing experience.

1️⃣ Adaptive Bitrate (ABR) Streaming

• Definition: Dynamically adjusts video quality based on real-time network conditions.
• Optimization:
  • Cloudinary serves HLS streams with multiple quality levels (360p, 720p, 1080p).
  • The app uses AVPlayer with Cloudinary’s adaptive streaming, ensuring lag-free playback.

2️⃣ Smart Prefetching for Instant Playback

• Definition: Prefetches upcoming videos without overloading bandwidth.
• Optimization:
  • Cloudinary’s CDN caching & preloading minimize network requests.
  • Only the next video is prefetched, reducing unnecessary data consumption.

3️⃣ On-the-Fly Video Transcoding & Compression

• Definition: Dynamically resizes and compresses videos to match device specs.
• Optimization:
  • Uses Cloudinary’s q_auto & f_auto for automatic format & quality selection.
  • Reduces file size by 40-60% while maintaining high resolution.

✅ Result: A lightning-fast video feed with minimal buffering and the best possible quality on any network or device.

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📂 Project Structure