Airflow

Airflow lets macOS users stream local video files directly to Apple TV, Chromecast, and AirPlay 2‑enabled TVs. It supports a wide range of video formats and codecs, automatically handling any necessary transcoding while preserving the original stream whenever possible. The software can deliver 4K HDR HEVC content to compatible devices and provides lossless or high‑quality audio transcoding (FLAC for Apple TV, Opus for Chromecast) with multichannel and Dolby Atmos passthrough.

The audio pipeline includes adaptive volume boosting and spatial headphone downmix, while subtitle handling features OCR for DVD/Bluray/Vobsub text. Airflow’s custom video processing goes beyond simple FFmpeg wrappers, using hardware‑accelerated transcoding when available to keep CPU load low.

Targeted at users who want to play local media on their home‑theater setup without sacrificing quality, Airflow is a stable, macOS‑only application that offers a one‑time purchase model and unlimited use across multiple computers.