-
Descubra as legendas automáticas e os estilos de legendas
Torne seu conteúdo de vídeo mais acessível com as legendas automáticas, um novo recurso poderoso capaz de transcrever áudio falado ou traduzir legendas de outro idioma usando modelos no dispositivo. Explore a pré-visualização do estilo das legendas, que permite às pessoas personalizar e visualizar estilos de legendas durante a reprodução, e aprofunde-se nos detalhes de implementação para AVKit, AVPlayerLayer e o framework Media Accessibility.
Capítulos
- 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
Recursos
-
Buscar neste vídeo...
-
-
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) }
-
-
- 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.