Hello!
I have been using my Vero V for a few months now.
Setup: Vero V is connected via HDMI to the Bluray player/home cinema. Audio comes out of the HomeCinema, video is forwarded to the TV also via HDMI.
I put some movies or tv shows on a 128GB Samsung USB, watch them on my TV via the Vero V and then “Suspend” it until my next binge-watch session.
I only play 1080p videos (sometimes 720p), never anything 4K videos as my TV is too old for 4K.
Up until now, all the movies or episodes I watched played perfectly.
But recently some new episodes don’t play as well: video feels “laggy”, audio is fine.
Same files are fine on PC.
What I tried so far:
- looked for similar issues on the forum - didn’t find anything matching my use case.
- multiple suspend / reboots / power off - didn’t seem to help,
- connected the Vero V to the internet and updated to the latest version - didn’t seem to help.
- tomorrow I’ll try to copy a few files on another USB, but I doubt it will make a difference (I would expect issues with all files if it was USB related?)
I managed to enable DEBUG logging, reboot 2x, play a problematic file for a bit, stopped and uploaded the logs.
→ https://paste.osmc.tv/onokugonap
The only element I noticed (in the on-screen logging) is that the FPS start around 40, but drop to below 10-15 after around 15-20 seconds.
The RAM usage was around 3.1GB / 3.8GB, and the CPU usage didn’t seem to go above 30-35% at most.
I also used MediaInfo for 3 files (1 = x265 = ok, 2 = x264 = laggy, 3 = x264 inside mkv = laggy).
→ https://paste.osmc.tv/utolagonum.coffee
Please let me know if I can provide any additional information, I did my best to follow the “useful support request” wiki page.
Beware: I’m a noob when it comes to the Vero 5, and will probably need detailed explanations to perfom any additional step 
Regards,
XanjnaX
Looks to be an issue with the video files.
Shrinking is a 23.976fps show.
Shrinking S01E10 has the correct 23.976fps.
Shrinking S02E01 has an incorrect 25fps. It also has the same runtime as the original 23.976 which means it contains duplicate frames. this will look stuttery, more noticeably when played back @ 50hz on a TV.
The Pacific is also a 23.976 show.
Your Pacific S01E05 is 29.97fps @ 1080p (so probably not telecined) with the same runtime as the original 23.976, which again means a lot of duplicate frames.
1 Like
Good eye @andrew1000r!
I noticed the same thing just now and had the exact same thoughts.
I’d bet good money that’s the whole issue right there.
Hello andrew1000r, Kontrarian,
Sorry for the late reply & thanks for your input!
I had no idea some frame rates could cause an issue with the Vero V.
How did you determine that The Pacific or Shrinking are 23.976 FPS shows?
Out of curiosity, I media info’d every single series I have stored away (9412 episodes ), and found various frame rates (see table below).
I may also upload the list of every single episode (1 line per episode) if it can be useful.
How do I know if the frame rate is fine for a show/episode or if it should be fixed?
For instance, the frame rate was 25.000 for two shows : KAOS (HEVC) and Shrinking (AVC) → KAOS played perfectly fine and Shrinking was laggy.
Should I play an episode for each case listed below to see what happens?
Regards,
XanjnaX
| Video | FPS | Num | Den |
---------------------------------
| AVC | n/a | n/a | n/a | (1)
| AVC | 23.949 | n/a | n/a |
| AVC | 23.950 | n/a | n/a |
| AVC | 23.976 | n/a | n/a |
| AVC | 23.976 | 23976 | 1000 |
| AVC | 23.976 | 24000 | 1001 |
| AVC | 24.000 | n/a | n/a |
| AVC | 24.000 | 24 | 1 |
| AVC | 25.000 | n/a | n/a | (3)
| AVC | 25.000 | 25 | 1 |
| AVC | 29.970 | 30000 | 1001 | (3)
| HEVC | n/a | n/a | n/a | (1)
| HEVC | 22.286 | n/a | n/a |
| HEVC | 23.833 | n/a | n/a |
| HEVC | 23.868 | n/a | n/a |
| HEVC | 23.976 | n/a | n/a |
| HEVC | 23.976 | 23976 | 1000 | (4)
| HEVC | n/a | 24000 | 1001 | (2)
| HEVC | 23.976 | 24000 | 1001 | (4)
| HEVC | n/a | 23976 | 1000 | (2)
| HEVC | n/a | 24000 | 1001 | (2)
| HEVC | 24.000 | 24 | 1 |
| HEVC | 25.000 | 25 | 1 | (4)
| HEVC | 29.970 | 30000 | 1001 |
(1) MediaInfo did not provide the FrameRate, FrameRateNum or FrameRateDen for that file.
(2) MediaInfo provided only the FrameRateNum and FrameRateDen for that file.
(3) Laggy (examples: Shriking or The Pacific)
(4) Played perfectly (example: KAOS)
1 Like
The first thing that caught my eye was that you had two episodes from Shrinking that had two different frame rates.
Having never heard of the show I decided to look it up online and I found that it’s an American TV show produced for Apple TV+.
If the show was PAL then it would make sense for it to be 25 fps, but it’s an NTSC show so it should be 24 fps.
Same is true with The Pacific being an NTSC show for HBO.
Very odd that you have it as 30fps.
If it was an old video from the 60i days then maybe but it was produced in 2010.
How you have files with mismatch fps is beyond me.
So Shrinking and The Pacific should both be 23.976 fps.
The problem won’t be a frame rate per se, unless it is variable. Then you will have playback problems with hardware decoders but that won’t exist in any modern (read last decade+) content.
The problem seems to be that the files you have are encoded with the wrong frame rate as opposed to how they were mastered.
Too late for me to think of a good analogy at this time of the day, but if you’ve watched some old films and they look sped up (almost humorously), it’s because they were usually filmed at around 16fps but projected at 24fps.
Not sure how you’ve ended up in this situation with these files.
Exactly, a 30 fps file should look smooth if the original content was actually 30 fps, but if the original content was 24 fps then 6 frames need to be duplicated to make up the difference and that causes stuttering.
@XanjnaX You need to get better sources.
Hi everyone,
Thank you all for your replies.
I will indeed look into getting better sources to avoid this issue in the future.
I marked the first reply from andrew1000r as the solution.
Regards,
XanjnaX