Direct play of AV1 Dolby Vision in mp4 not possible #7448
Description
This issue respects the following points:
- This issue is not already reported on GitHub (I've searched it).
- I agree to follow Jellyfin's Code of Conduct.
- This report addresses only a single issue; If you encounter multiple issues, kindly create separate reports for each one.
Describe the bug
When opening a video file encoded in AV1 Dolby Vision with mp4, direct play is not possible. The Player closes instantly (disabled remuxing/re-encoding for my user).
The file is muxed with mp4box with faststart (-inter 500) and :dvp=f10.hdr10:hdr=none:stype=av01.
Tested with Microsoft Edge 143.0.3650.96 on Windows 11 and LG OLED 2025 Model with Jellyfin App.
When I open the video file on my PC from the file explorer with Microsoft Edge the video plays fine.
The video also plays fine when I open it on my LG TV directly from USB drive.
If I remove the Dolby Vision metadata and only leave HDR10 in, the file also plays in Jellyfin with direct play on both Windows 11 and my LG TV.
When I allow remuxing for my user in Jellyfin, the file plays but Dolby Vision is lost and only HDR10 is detected.
Reproduction Steps
- Encode video as AV1 Dolby Vision
- Mux with mp4box
Expected/Actual behaviour
Direct play without remuxing should work for the video file.
Media info of the file
G: MPEG-4, 35.4 MiB, 1 min 7 s, 4 369 kb/s
V: AV1, [email protected], 3840x2160, 23.976 FPS, 14.2 Mb/s
T: German, Timed Text, Default, Forced
General
Complete name : C:\Users\user\Desktop\Testfile.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : iso4 (iso4/av01)
File size : 35.4 MiB
Duration : 1mn 7s
Overall bit rate mode : VBR
Overall bit rate : 4369 Kbps
Frame rate : 23.976 fps
Encoded date : 2025-12-24 16:53:25 UTC
Tagged date : 2025-12-24 16:53:25 UTC
Writing application : GPAC-2.5-DEV-rev1823-g551273021-master
Video
ID : 1
Format : AV1
Format/Info : AOMedia Video 1
Format profile : [email protected]
HDR format : Dolby Vision, Version 1.0, Profile 10.1, dav1.10.06, BL+RPU, no metadata compression, HDR10 compatible / SMPTE ST 2094 App 4, Version HDR10+ Profile B, HDR10+ Profile B compatible
Codec ID : av01
Duration : 20s 853ms
Bit rate : 14.2 Mbps
Maximum bit rate : 31.8 Mbps
Width : 3840 pixel
Height : 2160 pixel
Display aspect ratio : 16:9
Frame rate mode : CFR
Frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bit
Bits/(Pixel*Frame) : 0.072
Stream size : 35.4 MiB (100%)
Encoded date : 2025-12-24 16:53:25 UTC
Tagged date : 2025-12-24 16:53:25 UTC
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries: Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 1603 cd/m2
Maximum Frame-Average Light Level: 446 cd/m2
CodecConfigurationBox : av1C+dvvC
Text
ID : 2
Format : Timed Text
Codec ID : tx3g
Duration : 1mn 7s
Duration_FirstFrame : 1mn 3s
Bit rate mode : VBR
Bit rate : 5 bps
Frame rate : 0.044 fps
Stream size : 39.0 Byte (0%)
Title : German (Forced)
Language : German
Default : Yes
Forced : Yes
Alternate group : 2
Encoded date : 2025-12-24 16:53:25 UTC
Tagged date : 2025-12-24 16:53:25 UTC
Count of events : 1Logs
FFmpeg logs
[2025-12-24 17:44:25.918 +00:00] [INF] [20] Jellyfin.Api.Helpers.MediaInfoHelper: User policy for "cedric". EnablePlaybackRemuxing: False EnableVideoPlaybackTranscoding: False EnableAudioPlaybackTranscoding: False
[2025-12-24 17:44:26.322 +00:00] [INF] [79] Emby.Server.Implementations.Session.SessionManager: Playback stopped reported by app "Jellyfin Web" "10.11.5" playing "Testfile". Stopped at "0" msServer version
10.11.5
Web version
10.11.5
Build version
10.11.5
Platform
Windows 11
Browser
Microsoft Edge
Additional information
I can provide a sample file if needed.