Chapters and RR/FF do not work when Direct Playing

Plex Media Server Desktops & Laptops
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1

Server Version#: 1.24.3
Player Version#: 6.9 (Roku)

Hello, I have a video that is a MKV container, H.264 for video and AAC for audio and have tested on various Roku devices (TCL Roku TV, Roku 3, Roku Ultra, etc.). When the file Direct Plays, chapters and RR/FF do not work; you are taken back to the very beginning of the video. However if the video is Direct Streamed, the chapters and RR/FF work correctly.

I don’t have this problem with other videos/movies of the same type, so I’m fairly certain it’s jsut this one video. This video is actualyl one I made from many clips and used iMovie to edit them together and then MKVToolNix to remux to MKV and add the chapters. Here is the report from MediaInfo:

General
Unique ID                                : 145153928176153595617719921299691443661 (0x6D33A132D6BCEA17DF887C952D3C95CD)
Complete name                            : /Volumes/media/Movies/Scary Tales (1983)/Scary Tales (1983).mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 4.76 GiB
Duration                                 : 1 h 13 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 9 248 kb/s
Movie name                               : Disney Scary Tales
Encoded date                             : UTC 2021-10-05 21:54:46
Writing application                      : mkvmerge v61.0.0 ('So') 64-bit
Writing library                          : libebml v1.4.2 + libmatroska v1.6.4

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, GOP                     : M=1, N=30
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 1 h 13 min
Bit rate mode                            : Variable
Maximum bit rate                         : 768 kb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : A_AAC-2
Duration                                 : 1 h 13 min
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Delay relative to video                  : -44 ms
Language                                 : English
Default                                  : Yes
Forced                                   : No

Menu
00:00:34.000                             : :The Skeleton Dance
00:06:06.000                             : :The Haunted House
00:12:48.000                             : :Donald's Lucky Day
00:21:05.000                             : :Pluto's Judgement Day
00:29:22.000                             : :The Mad Doctor
00:35:59.000                             : :Trick or Treat
00:43:30.000                             : :Donald Duck and the Gorilla
00:50:13.000                             : :Lonesome Ghosts
00:58:52.000                             : :Duck Pimples
01:06:16.000                             : :Mickey's Parrot

Has anyone seen this before? Is this a bug? Any way to fix it?

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Any help or what is going on here?

3

Hi @interconnect - If you are sure that it is just this video file that is causing an issue, then I would try the following…

  1. Using MKVToolNix, export out the chapters to an XML file.
  2. Remux it again with MKVToolNix to strip out the chapters → Does RR/FF now work or not?
  3. If RR/FF now does work, remux it yet again and import in the chapters XML file.

If it still doesn’t work correctly, I can then only suggest reconverting it with Handbrake and see what happens.

4

I would try mkclean

1 Like
5

That did the trick! Thanks; I had never heard of that util before. Thanks so much.

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