Wrong Frame Rate In MKV Container When Checking FPS

[dcoke22]

i have some BBC TV shows, 25fps and AC3 audio. I've had nothing but issues trying to play them in the US. This did not work - rip as is, play on AppleTV 4K on a US Sony TV and audio stutters every few seconds. Tried letting Topaz Video AI use chronos to change the FPS to 60, then verified that the original length and the new 60fps length are the exact same length (yes). Then used MKVTollNix to combine the original 48khz audio and new 60fps video back together, and play on a Sony TV that can take 60hz, same thing audio stutter. I tried changing the FPS to 30, then remux, same thing, playback stutters audio every few seconds. Then I tried changing the FPS to 23.97 using Topaz Video AI then remux and it seems to be smooth audio. Any ideas why I can't get my apple tv and Sony TV to play back a clean 60fps clip that started as 25fps and was changed to 60fps using Topaz, that plays back perfectly on a PC by the way? I'm confused because the specs says both the 30fps and 60fps should play perfectly on the TV, but the audio stutters. What am I missing? Is there anyone here that has started with 25fps TV shows and ended up with perfect 60fps that plays with zero audio issues?

I don't have any 25fps content to my knowledge. My Doctor Who discs are all US releases and either 30 fps (29.970 (30000/1001) FPS) or 24 fps (23.976 (24000/1001) FPS).

Does something like VLC or MPV play your rips successfully on your computer?

How are you playing files on the Apple TV 4K? Plex? Infuse? Something else?

There are 3 generations of Apple TV 4K now. Which do you have? (Identify your Apple TV model)

[bmillham]

I don't think I have any Doctor Who content that I've ripped that was 25FPS, but I have this that I ripped from an Australian DVD of Matlock Police:

Code: Select all

General
Unique ID                                : 247283144488852466966502514673610678733 (0xBA0900535167D54EDD3B71BFDD9461CD)
Complete name                            : Matlock Police - S01E01 - Twenty Six Hours.AC3.1ch.576p.DVD.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 2.06 GiB
Duration                                 : 53 min 38 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 5 492 kb/s
Encoded date                             : UTC 2022-09-10 23:12:32
Writing application                      : MakeMKV v1.16.5 linux(x64-release)
Writing library                          : libmakemkv v1.16.5 (1.3.10/1.5.2) x86_64-linux-gnu

Video
ID                                       : 1
ID in the original source medium         : 224 (0xE0)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@Main
Format settings                          : CustomMatrix / BVOP
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Custom
Format settings, GOP                     : M=3, N=12
Format settings, picture structure       : Frame
Codec ID                                 : V_MPEG2
Codec ID/Info                            : MPEG 1 or 2 Video
Duration                                 : 53 min 38 s
Bit rate mode                            : Variable
Bit rate                                 : 5 295 kb/s
Maximum bit rate                         : 8 500 kb/s
Width                                    : 720 pixels
Height                                   : 576 pixels
Display aspect ratio                     : 4:3
Frame rate mode                          : Constant
Frame rate                               : 25.000 FPS
Standard                                 : PAL
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.511
Time code of first frame                 : 00:00:00:00
Time code source                         : Group of pictures header
GOP, Open/Closed                         : Closed
Stream size                              : 1.98 GiB (96%)
Language                                 : English
Default                                  : No
Forced                                   : No
Color primaries                          : BT.601 PAL
Transfer characteristics                 : BT.470 System B/G
Matrix coefficients                      : BT.601
Original source medium                   : DVD-Video

Audio
ID                                       : 2
ID in the original source medium         : 189 (0xBD)128 (0x80)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Codec ID                                 : A_AC3
Duration                                 : 53 min 38 s
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 1 channel
Channel layout                           : C
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 73.7 MiB (3%)
Title                                    : Mono
Language                                 : English
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No
Original source medium                   : DVD-Video

Plays fine for me using Kodi on Linux.