MP4 stuttering on new system

[akkers]

I have a problem playing MP4 files smoothly; they tend to stutter intermittently. If I pause play for a few secs and then play again then its smooth for a minute or two and then starts stuttering again for a few mins and then goes smooth and so on; a pan seems to kick off the stutter.

Intel® Core™ i9-12900 - 16-Core
Memory 64GB (4x16GB) DDR4/3200MHz Corsair Vengeance LPX Memory [+125]
ASUS PRIME Z690-P
MSI GeForce® RTX 3060 12GB
Storage 1TB Samsung 980 PRO, M.2 (2280)
Windows 11
Resolution 1900x1200 @60Hz
MP4 HD Video 1920x1080 60FPS

[poisondeathray]

All MP4 files, or specific ones only ?

MP4 HD Video 1920x1080 60FPS

What compression ? AVC? HEVC? AV1 ?

Test playing videos from different sources, eg download a 1920x1080 60fps from YT


What player, decoder ? Test something else like MPCHC, MPV.


Try different HW decoding (intel vs. nvidia), test different drivers


Also test disabling HW accel to test SW decoding

[akkers]

I have tested with a mp4 downloaded from YT abd it has a little of the stutter. But then this looks to be encoded at a lower bitrate. My vids tend to be encoded around 12mbs. I have pasted in thevideo properties below.
Could do with help for obtaing the other info.

General
Complete name : E:\Tun.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/mp41)
File size : 4.63 GiB
Duration : 1 h 19 min
Overall bit rate mode : Variable
Overall bit rate : 8 325 kb/s
Encoded date : UTC 2022-12-09 18:14:49
Tagged date : UTC 2022-12-09 18:17:54
©TIM : 00:00:00:00
©TSC : 60000
©TSZ : 1001

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Format settings, GOP : M=4, N=59
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 19 min
Source duration : 1 h 19 min
Bit rate : 8 000 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 59.940 (59940/1000) FPS
Minimum frame rate : 59.940 FPS
Maximum frame rate : 60.000 FPS
Original frame rate : 59.940 (60000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.064
Stream size : 4.45 GiB (96%)
Source stream size : 4.45 GiB (96%)
Language : English
Encoded date : UTC 2022-12-09 18:14:49
Tagged date : UTC 2022-12-09 18:14:49
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1 h 19 min
Source duration : 1 h 19 min
Bit rate mode : Variable
Bit rate : 317 kb/s
Maximum bit rate : 422 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 spf)
Compression mode : Lossy
Stream size : 181 MiB (4%)
Source stream size : 181 MiB (4%)
Language : English
Encoded date : UTC 2022-12-09 18:14:49
Tagged date : UTC 2022-12-09 18:14:49