MVK Files - can't fast forward

[ejd]

Hi all

Been setting up my server - and just started looking at converting my dvd/Blu-ray collection. I wanted to use MVK but Jellyfin does not seem to like to fast forward mvk files on my sony tv with the android app installed.

I have converted the same movie to mvk and mp4 - mp4 allows fast forwarding while mvk does not. MVK fast forwarding works to some degree on my PC and android phone though. However, it looks like it does not know how long the movie is. I suspect it is something to do with the mvk being a container.  

I'm using 10.8.10 server - 

Are there any work arounds?

[bitmap]

All of my library, save a few outliers uses MKV containers. This is likely not the issue. Codec is more likely the issue. If you could provide more info about the file using mediainfo or ffprobe, that would help.

[Deleted User]

no issues with the jellyfin-androidtv app and MKV files here either

does ffmpeg know what the video length is if you just use ffmpeg -i <filename> ?

[capzulu]

I'm having the same issue. Video plays fine but if I try to rewind or fast forward then it freezes. It's only fixed by playing it from the beginning again. My TV is directly playing the video.

Here is the output of mediainfo

General
Unique ID                                : 62830916223153534859482823901117603523 (0x2F44CB5729A01AE4293A06E50A7ADEC3)
Complete name                            : M3GAN.mkv
Format                                  : Matroska
Format version                          : Version 4
File size                                : 2.44 GiB
Duration                                : 1 h 41 min
Overall bit rate                        : 3 423 kb/s
Movie name                              : M3GAN
Encoded date                            : UTC 2023-01-24 18:43:36
Writing application                      : mkvmerge v73.0.0 ('25 or 6 to 4') 64-bit
Writing library                          : libebml v1.4.4 + libmatroska v1.7.1

Video
ID                                      : 1
Format                                  : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                          : Main 10@L5@Main
HDR format                              : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                : V_MPEGH/ISO/HEVC
Duration                                : 1 h 41 min
Bit rate                                : 3 215 kb/s
Width                                    : 3 840 pixels
Height                                  : 1 608 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 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                      : 0.022
Stream size                              : 2.29 GiB (94%)
Default                                  : Yes
Forced                                  : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0500 cd/m2, max: 1000 cd/m2
Maximum Content Light Level              : 629 cd/m2
Maximum Frame-Average Light Level        : 164 cd/m2

Audio
ID                                      : 2
Format                                  : AAC LC SBR
Format/Info                              : Advanced Audio Codec Low Complexity with Spectral Band Replication
Commercial name                          : HE-AAC
Format settings                          : Explicit
Codec ID                                : A_AAC-2
Duration                                : 1 h 41 min
Bit rate                                : 206 kb/s
Channel(s)                              : 6 channels
Channel layout                          : C L R Ls Rs LFE
Sampling rate                            : 48.0 kHz
Frame rate                              : 23.438 FPS (2048 SPF)
Compression mode                        : Lossy
Delay relative to video                  : 23 ms
Stream size                              : 150 MiB (6%)
Language                                : English
Default                                  : Yes
Forced                                  : No

Text #1
ID                                      : 3
Format                                  : UTF-8
Codec ID                                : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                : 1 h 41 min
Bit rate                                : 69 b/s
Count of elements                        : 1648
Stream size                              : 51.5 KiB (0%)
Language                                : English
Default                                  : Yes
Forced                                  : No

Text #2
ID                                      : 4
Format                                  : UTF-8
Codec ID                                : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                : 1 h 41 min
Bit rate                                : 76 b/s
Count of elements                        : 1870
Stream size                              : 57.4 KiB (0%)
Title                                    : SDH
Language                                : English
Default                                  : No
Forced                                  : No

[Deleted User]

I'm having the same issue. Video plays fine but if I try to rewind or fast forward then it freezes. It's only fixed by playing it from the beginning again. My TV is directly playing the video.

Here is the output of mediainfo

Code:

Movie name                              : PSArips.com | M3GAN.2022.2160p.10bit.HDR.DV.WEBRip.6CH.x265.HEVC-PSA

did you ask psarips.com why their pirate copy is broken?

im not supposed to care where your media comes from but when you shove it in everyone's face ... i mean, come on

[TheDreadPirate]

They came into the Matrix chat room and we suggested they use ffmpeg to recontainerize the file.

ffmpeg -i input.mkv output.mkv

[Deleted User]

They came into the Matrix chat room and we suggested they use ffmpeg to recontainerize the file.

ffmpeg -i input.mkv output.mkv

i see, well if that doesn't work here's my next suggestion - https://www.blu-ray.com/movies/M3GAN-4K-Blu-ray/340553

[TheDreadPirate]

While we don't encourage piracy, and we discourage talking about your media sources, we also don't shame people one way or the other.

[Facundo Batista]

I'm experiencing the same problem in my older LG tv. Can't fast forward, can't go back, and if I restart the video, it always starts from the beginning (not from where I left it).

That said, it just works OK in my newer LG tv. Same video same jellyfin server. It just works.

So it looks that the older TV does not support some feature, or that jellyfin does not comply with something at 100%.

My question is: may exist a workaround so the older tv also behaves correctly?

Thanks!

[TheDreadPirate]

I'm experiencing the same problem in my older LG tv. Can't fast forward, can't go back, and if I restart the video, it always starts from the beginning (not from where I left it).

That said, it just works OK in my newer LG tv. Same video same jellyfin server. It just works.

So it looks that the older TV does not support some feature, or that jellyfin does not comply with something at 100%.

My question is: may exist a workaround so the older tv also behaves correctly?

Thanks!

Without seeing your logs, I can't say why it works on one and not the other.  Perhaps on the TV that behaves properly, it is transcoding or remuxing while it direct plays on your other TV.

90% of the time, the cause of this issue is some sort of problem with the MKV container.  The video and audio is fine, but the container itself is malformed in some way.  The solution is to remux the files, which does NOT require re-encoding.  Remuxing should only take a few minutes depending on how fast your storage is.

Code:

/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags +genpts+igndts -i "/path/to/your/video.mkv" -map 0 -codec copy -max_muxing_queue_size 2048 -max_interleave_delta 0 -avoid_negative_ts disabled newFile.mkv