Build media features around playback state, capture lifetimes, and the resources they own. This outline spans AVFoundation, AVKit, audio sessions, export, and testing. Each entry is a future article topic.
Article available Coming soon
1. Media Foundations
- Assets, Tracks, Formats, and Time Ranges
- Representing Media Time with
CMTime - Loading Asset Properties Asynchronously
- Camera and Microphone Permissions
- Choosing AVKit Controls vs. a Custom Player UI
2. Audio Sessions and Playback
- Audio Session Categories, Modes, and Options
- Handling Interruptions and Route Changes
- Playing Audio Files and Managing Playback State
- Building Audio Graphs with
AVAudioEngine - Recording Audio and Managing Output Files
- Background Audio and Now Playing Controls
3. Video Playback
AVPlayer, Player Items, and Playback Readiness- Buffering, Stalling, and Recoverable Playback Failures
- Seeking, Scrubbing, and Synchronizing Progress
- Observers, Time Callbacks, and Player Teardown
- Subtitles, Audio Tracks, and Accessible Playback
- Picture in Picture and Playback Lifecycle
4. Capture and Processing
- Configuring an
AVCaptureSession - Camera Preview, Orientation, and Capture Coordinates
- Capturing Photos and Recording Video
- Reading and Writing Media Samples
- Compositions, Trimming, and Audio-Video Synchronization
- Export Progress, Cancellation, and Partial-File Cleanup
5. Reliability and Performance
- Handling Permission Changes and Unavailable Hardware
- Testing Playback and Capture with Controlled Fixtures
- Synchronizing UI State with Media Events
- Measuring Memory, Energy, and Frame Delivery
- Releasing Capture Devices and Media Resources Reliably
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Sensors