Formats
If it's in your library, it plays.
Including height-channel audio from Dolby TrueHD Atmos and DTS:X on supported Apple TV setups, powered by AetherEngine.
Hear the height channels.
Plozz supports height-channel playback from Dolby TrueHD Atmos and DTS:X on Apple TV. AetherEngine decodes the source’s spatial information, renders it into a speaker layout with heights and encodes Apple Positional Audio (APAC). tvOS delivers that audio to compatible Atmos equipment as Dolby MAT.
It’s rendered audio, not untouched TrueHD or DTS:X passthrough. APAC is lossy. You need tvOS 26 or later, a supported 48 kHz track on the object-audio rendering path and a compatible Atmos receiver or soundbar setup. The height path is for supported on-demand video, not a promise for every live or software-decoded session.
Unsupported tracks or paths can fall back to channel-based audio without heights. Server conversion can change the source, and receiver labels alone don’t describe the original format.
Read AetherEngine’s documentation for TrueHD Atmos with heights and DTS:X with heights.
Video
- HEVC / H.265Main and Main10, hardware decoded
- H.264 / AVCIncluding interlaced and High 4:2:2, 4:4:4 and 10-bit
- AV1Hardware where the chip has it, software everywhere else
- VP9 and VP8
- MPEG-2DVD rips and broadcast recordings
- MPEG-4 Part 2XVID and DIVX
- VC-1
High dynamic range
- Dolby Vision Profile 5
- Dolby Vision Profile 7Converted to Profile 8.1 during playback, which Apple hardware cannot do alone
- Dolby Vision Profile 8.1 and 8.4
- Dolby Vision on AV1Profiles 10.1 and 10.4
- HDR10
- HDR10+Per-frame ST 2094-40 metadata passed through
- HLG
Audio
- Dolby TrueHD AtmosHeight-channel rendering through AetherEngine on supported Apple TV setups, using Apple Positional Audio and Dolby MAT
- DTS:XSupported DTS-HD MA presentations retain height audio through the same rendering path, not native DTS:X bitstream output
- Dolby Digital Plus AtmosE-AC-3 with JOC, copied without re-encoding on compatible playback paths
- Dolby TrueHD and MLPChannel-based playback to surround or lossless FLAC; separate from the lossy height-audio path
- DTS, DTS-HD MAChannel-based playback to surround or lossless FLAC; DTS:X rendering requires a supported extension
- E-AC-3 and AC-3Copied without re-encoding
- FLAC and ALACCopied without re-encoding
- AAC, HE-AAC, HE-AACv2
- MP3, MP2, Opus, Vorbis, PCM
- 5.1 and 7.1Channel layout preserved
Subtitles
- SRT, ASS, SSA, WebVTTStyling and positioning honoured
- PGSBlu-ray image subtitles, rendered on device
- DVB and DVDImage subtitles
- CEA-608Broadcast closed captions, including captions buried in the video stream
- DVB teletextBroadcaster colours preserved
- Sidecar filesPicked up from the same folder or a Subs folder beside it
Containers and sources
- MKV
- MP4 and MOV
- WebM, AVI, OGG, FLV
- MPEG-TSIncluding live broadcast
- DVD and Blu-ray imagesDecrypted ISO, with titles and chapters
Worth knowing
- Output depends on the whole playback chainThe file, device, display and audio equipment all matter. Format badges describe media, not proof of HDMI output. A server conversion can change HDR, codecs and audio.
- Quality limits can ask your server to transcodeOn iPhone and iPad, movie and episode quality controls keep the original when it fits and request conversion when needed. Server capabilities, settings and entitlements still apply.
- Height rendering is not bitstream passthroughAetherEngine renders supported TrueHD Atmos and DTS:X audio into a speaker layout, then encodes Apple Positional Audio (APAC). APAC is lossy; tvOS delivers it as Dolby MAT, not the original TrueHD or DTS:X bitstream.
- Height audio needs a supported playback pathRequires tvOS 26 or later, a supported 48 kHz source, the object-audio rendering path and a compatible Atmos receiver or soundbar setup. Unsupported sources or playback paths can fall back to channel-based audio without heights. A server conversion can remove the source information needed for rendering.
- AV1 is software decoded on Apple TVNo Apple TV chip has AV1 in hardware yet. It plays, but it works the processor harder than HEVC does.
- Dolby Vision Profile 7 becomes Profile 8.1The enhancement layer is dropped, which no Apple device could decode anyway. You get Dolby Vision instead of the HDR10 fallback.
Common questions
Does Plozz play MKV on Apple TV?
Yes. Plozz can open Matroska files on the device itself. Mobile streaming-quality limits can request a server conversion instead of the original file.
Does Plozz support Dolby Vision?
Yes, profiles 5, 7, 8.1 and 8.4. Profile 7 is the one used by UHD Blu-ray remuxes, and Plozz converts it to Profile 8.1 during playback because Apple hardware cannot decode it directly.
Does Plozz support Dolby Atmos?
Yes. Plozz supports Dolby Digital Plus Atmos (E-AC-3 JOC) on compatible playback paths, plus height-channel rendering from supported Dolby TrueHD Atmos tracks on Apple TV through AetherEngine. The TrueHD path uses Apple Positional Audio and Dolby MAT rather than sending the original TrueHD bitstream.
Does Plozz play DTS:X height channels on Apple TV?
Yes, through AetherEngine’s object-audio rendering path for supported 48 kHz DTS-HD MA tracks with a DTS:X extension. It renders the heights into Apple Positional Audio, delivered by tvOS as Dolby MAT. This requires tvOS 26 or later and compatible Atmos equipment; it is not native DTS:X bitstream output.
Is TrueHD Atmos or DTS:X height playback lossless?
No. The height path renders the source audio and encodes it as Apple Positional Audio (APAC), which is lossy. That is separate from lossless channel-based playback. Unsupported sources or playback paths can fall back to the channel-based bridge without heights.
Does it cost anything?
Plozz is free and open source under GPL-3.0, with no paid format tier. Hardware compatibility and any server-side requirements still apply.
Does Plozz play HDR10+?
Plozz supports HDR10+ metadata in compatible playback paths. Actual output depends on the device, display and stream; an HDR10+ source badge is not proof of HDMI output.
Can it play Blu-ray and DVD images?
Yes, decrypted ISO images, with title and chapter selection.