-c copy may produce mp4 files with AC3/DTS/FLAC audio that macOS AVPlayer cannot decode, resulting in silent playback. Change to -c:v copy -c:a aac -b:a 192k to preserve video quality while ensuring universally playable audio.
- StreamRecorderKit: 跨平台库 - StreamRecorderEngine: 协议+类型 - HLSVariantResolver: HLS master 解析 - FFmpegRecorder: macOS (Process+ffmpeg) - AVFoundationRecorder: iOS (AVAssetReader+Writer) - RecorderFactory: 平台工厂 - StreamRecorder: CLI 入口 - 15秒录制测试通过