No audio for Atmos files

Greetings,

Using Infuse in iOS 17.4.1, on an iPhone 11, audio will not work for this specific file. It works fine on Apple TV and macos (desktop app).

Many thanks in advance.

$ mediainfo Dune\ Part\ Two\ \(2024\)\ \[imdbid-tt15239678\]\ -\ \[WEBDL-2160p\ Proper\]\[EAC3\ Atmos\ 5.1\]\[8bit\]\[h265\]-FLUX.mkv
General
Unique ID                                : 278516061675644567579797480291016962922 (0xD1883E08833C8247CAB2E4671CFCF36A)
Complete name                            : Dune Part Two (2024) [imdbid-tt15239678] - [WEBDL-2160p Proper][EAC3 Atmos 5.1][8bit][h265]-FLUX.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 18.2 GiB
Duration                                 : 2 h 46 min
Overall bit rate                         : 15.6 Mb/s
Writing application                      : mkvmerge v83.0 ('Circle Of Friends') 64-bit
Writing library                          : libebml v1.4.5 + libmatroska v1.7.1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main@L5@Main
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 2 h 46 min
Bit rate                                 : 14.6 Mb/s
Width                                    : 3 840 pixels
Height                                   : 1 600 pixels
Display aspect ratio                     : 2.40:1
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Bits/(Pixel*Frame)                       : 0.099
Stream size                              : 17.0 GiB (93%)
Language                                 : English
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : E-AC-3 JOC
Format/Info                              : Enhanced AC-3 with Joint Object Coding
Commercial name                          : Dolby Digital Plus with Dolby Atmos
Codec ID                                 : A_EAC3
Duration                                 : 2 h 46 min
Bit rate mode                            : Constant
Bit rate                                 : 768 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 16 ms
Stream size                              : 917 MiB (5%)
Language                                 : English
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No
Complexity index                         : 16
Number of dynamic objects                : 15
Bed channel count                        : 1 channel
Bed channel configuration                : LFE

Text #1
ID                                       : 3
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : English
Default                                  : Yes
Forced                                   : Yes

Text #2
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : English
Default                                  : No
Forced                                   : No

Text #3
ID                                       : 5
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : SDH
Language                                 : English
Default                                  : No
Forced                                   : No

Text #4
ID                                       : 6
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : German
Default                                  : No
Forced                                   : No

Text #5
ID                                       : 7
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Latin American
Language                                 : Spanish
Default                                  : No
Forced                                   : No

Text #6
ID                                       : 8
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Hebrew
Default                                  : No
Forced                                   : No

Text #7
ID                                       : 9
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Hungarian
Default                                  : No
Forced                                   : No

Text #8
ID                                       : 10
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Korean
Default                                  : No
Forced                                   : No

Text #9
ID                                       : 11
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Lithuanian
Default                                  : No
Forced                                   : No

Text #10
ID                                       : 12
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Norwegian
Default                                  : No
Forced                                   : No

Text #11
ID                                       : 13
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Portuguese
Default                                  : No
Forced                                   : No

Menu
00:00:00.016                             : en:Chapter 01
00:09:15.237                             : en:Chapter 02
00:21:29.930                             : en:Chapter 03
00:29:31.037                             : en:Chapter 04
00:40:08.924                             : en:Chapter 05
00:50:40.931                             : en:Chapter 06
01:00:34.150                             : en:Chapter 07
01:09:54.543                             : en:Chapter 08
01:19:40.504                             : en:Chapter 09
01:30:39.955                             : en:Chapter 10
01:39:06.087                             : en:Chapter 11
01:49:35.883                             : en:Chapter 12
01:59:40.446                             : en:Chapter 13
02:10:24.632                             : en:Chapter 14
02:18:50.304                             : en:Chapter 15
02:24:19.258                             : en:Chapter 16
02:37:45.815                             : en:Chapter 17

If I stream the file from my jellyfin client, it works fine but it’s transcoding both audio and video.

Happy to provide any further info.

Is this happening in the new 7.7.4 update?

If so, would you be able to upload a sample file we can review here?

Yes, 7.7.4 (4818) on iOS. Also just now, I’m seeing that audio isn’t working in the macOS version either (7.7.4818 r7315ad18e94bb0001df06f94dcc20dd6fd8b8958).

Sample file uploaded.

Thanks for sending in the sample. Will look into what is going on here.

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