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为 Apple 沉浸视频构建实时制作工具
深入了解 Apple 沉浸视频实时制作的幕后过程。探索如何打包沉浸视频、空间音频和场景元数据，以便使用 SMPTE 2110 标准通过 IP 网络传输内容。借助 Apple 推出的 Immersive Media Support、Video Toolbox 和 AVFoundation 框架，实现 Apple 沉浸视频的实时制作流程。为了充分从这个讲座中获益，建议你观看 WWDC25 视频“了解 Apple 沉浸视频技术”。
章节
- 0:00 - Introduction
- 2:08 - Live production overview
- 5:16 - What makes immersive live different
- 7:05 - Immersive live format
- 9:09 - Real-time media transport
- 11:25 - Recording and playback
资源
- kVTCompressionPropertyKey_ProjectionKind
- CMVideoCodecType
- Apple ProRes RAW White Paper
- Apple ProRes White Paper
- Immersive Media Support
相关视频
WWDC25
WWDC20
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13:17 - Set compression properties for vexu metadata
import VideoToolbox let compressionProperties: [String: Any] = [ // ... kVTCompressionPropertyKey_ProjectionKind as String: kVTProjectionKind_AppleImmersiveVideo // ... ]
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- 0:00 - Introduction
Apple Immersive Video live streaming transports fans to sports, music, and entertainment events on Apple Vision Pro — illustrated by courtside LA Lakers games delivered live through the Spectrum SportsNet and NBA apps.
- 2:08 - Live production overview
A high-level overview of the fundamental components and creative tools that make up a modern live production pipeline, from cameras and graphics to video switchers and audio consoles.
- 5:16 - What makes immersive live different
Discover the unique scale and fidelity required for delivering Apple Immersive Video, including massive video resolutions, high frame rates, and rich Apple Spatial Audio Format (ASAF) mixes.
- 7:05 - Immersive live format
Learn about the core formats powering live immersive workflows, including streaming ProRes, uncompressed PCM audio, and per-frame JSON metadata.
- 9:09 - Real-time media transport
Explore how live immersive feeds are transported between devices in real time over IP using the SMPTE 2110 industry standard.
- 11:25 - Recording and playback
Learn how live streams are recorded to disk and played back using AVAssetWriter and the Immersive Media Support framework.