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Découvrez les sous-titres générés et les styles de sous-titres
Rendez votre contenu vidéo plus accessible avec les sous-titres générés : une nouvelle fonctionnalité puissante capable de transcrire les contenus parlés ou de traduire les sous-titres d'une autre langue, à l'aide de modèles sur l'appareil. Découvrez la fonction d'aperçu du style des sous-titres, qui permet de personnaliser et de prévisualiser les styles de sous-titres pendant la lecture, puis plongez dans les détails d'implémentation pour AVKit, AVPlayerLayer et le framework Media Accessibility.
Chapitres
- 0:00 - Introduction
- 1:10 - Media authoring
- 2:14 - Subtitle generation methods
- 3:03 - Availability and support
- 4:31 - Presenting subtitles in your app
- 5:39 - Subtitle style preview
- 8:55 - Demo
- 10:20 - Next steps
Ressources
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Rechercher dans cette vidéo…
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7:43 - Implement subtitle style preview
// Implement subtitle style preview import AVFoundation import MediaAccessibility func updateProfileList() { subtitleStyleProfileIDs = MACaptionAppearanceCopyProfileIDs() as? [String] ?? [] } func showPreviewStyle(subtitleStyleProfileID: String) { playerLayer.setCaptionPreviewProfileID(subtitleStyleProfileID, position: .zero, text: nil) } func stopPreviewStyle() { playerLayer.stopShowingCaptionPreview() } func setSubtitleStyle(subtitleStyleProfileID: CFString) { MACaptionAppearanceSetActiveProfileID(subtitleStyleProfileID) }
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- 0:00 - Introduction
Why people rely on subtitles for accessibility and comprehension, and what the session covers — how Apple's on-device AI-generated subtitles appear in your app, the subtitle style preview feature, and how media assets are authored.
- 1:10 - Media authoring
An overview of the traditional media authoring process, including how video, audio, and manually created subtitles are combined into the final media package.
- 2:14 - Subtitle generation methods
Discover the two use cases for on-device generated subtitles: speech transcription from source audio, and language translation from existing subtitles.
- 3:03 - Availability and support
The playback scenarios where generated subtitles work automatically — HTTP Live Streaming, video on demand, and file-based content — and the supported devices and languages, including English subtitles and translation into multiple languages.
- 4:31 - Presenting subtitles in your app
Explore options for providing a subtitle selection UI during video playback using AVPlayerViewController, AVPlayerView, and custom controls.
- 5:39 - Subtitle style preview
Explore how to implement a subtitle style preview using AVPlayerLayer and AVCaptionRenderer, allowing users to customize their viewing experience.
- 8:55 - Demo
A walkthrough of both features together — switching a camping video to generated Italian subtitles marked with a sparkle, then customizing the subtitle style for readability.
- 10:20 - Next steps
Review best practices for integrating generated subtitles and style previews into your app to improve accessibility.