Formats & DRM

Streaming formats

Format	Android	iOS	Web
HLS (VOD)	✅	✅ native	✅ hls.js · native on Safari
HLS live & live-DVR	✅	✅	✅
HLS with MPEG-TS segments (legacy)	✅	✅	✅ transmuxed by hls.js
DASH (VOD & live)	✅	—	⏳ planned
Progressive (MP4 / WebM)	✅	✅ MP4 / MOV	✅
fMP4 / CMAF segments	✅	✅	✅
Multi-bitrate ABR with quality menu	✅	✅	✅
Multiple audio renditions	✅	✅	✅
Embedded (in-manifest) subtitles	✅	✅	✅
Sideloaded WebVTT (incl. positioned cues)	✅	✅	✅
Storyboard VTT (trick-play sprites)	✅	✅	✅

Codec support (H.264, HEVC, AV1, AAC, …) follows the device or browser — the players use the platform’s native decoders.

Not supported

Format	Why
DASH on iOS	AVFoundation has no DASH pipeline — use HLS (CMAF lets one packaging serve both)
WebM on iOS	not an AVFoundation container
Smooth Streaming	legacy format, not included on any platform
RTMP / RTSP	contribution protocols, out of scope for a playback SDK
Low-latency HLS	engine support exists on all platforms, not yet certified by us

DRM systems

DRM	Android	iOS	Web
Widevine	✅ (default)	—	✅ Chrome · Firefox · Edge · Android browsers
PlayReady	✅	—	✅ Edge
FairPlay	—	✅	✅ Safari (macOS / iOS)
ClearKey	✅	—	—

On the web, one DrmConfig can carry all three systems — the SDK engages whichever the visitor’s browser supports. Encryption schemes: cenc and cbcs are supported wherever the platform supports them (CMAF/cbcs works across all three, which is how one encrypted stream can serve every platform).