Strange glitch in downloaded streaming video

[DronZX]

Hi everyone!

I have recorded live stream from the web site and got a strange glitch.

When I am playing the video in VLC or Media Player Classic the image is smooth and clean. But if I import it to any video editing software or upload to socials I get an artifacts on video. This is the first time I've got this issue and I cant understand how to fix it. The video was recorded by ffmpeg using -c copy key.

Here is the MediaInfo of the video file:

General
Complete name : D:\b24 1.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 372 MiB
Duration : 8 min 28 s
Overall bit rate : 6 135 kb/s
Writing application : Lavf58.29.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference : 2 frames
Format settings, GOP : M=3, N=50
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 8 min 28 s
Bit rate : 5 998 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.116
Stream size : 363 MiB (98%)
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 8 min 28 s
Bit rate mode : Constant
Bit rate : 129 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 7.82 MiB (2%)
Default : Yes
Alternate group : 1

I wonder if anyone got the same glitch and fixed it.

Thank you!

[LZAA]

File?

[DronZX]

Sorry, I'll be at home in few hours, then I can upload the sample. N.B. I've converted the file with VLC Player and the result is good. But I hope there's a way to save it without encoding

[DronZX]

Here is the source file

[LZAA]

How exactly do you want to change this file?

[DronZX]

I want to find a way to save this file without recoding, but so that during playback there are no artifacts on the screen. I think that if some players are able to play the image without distortion, then the problem is not in the data that is responsible for the content of the frame, but in some meta-information or index, or something similar. But I can't figure out what exactly the source of problem is yet.

P.S. The stream I have recorded was not stable, some segments was dropped so I think this is a result of it. This file was cut without encoding from 20GB source file

[ProWo]

I want to find a way to save this file without recoding, but so that during playback there are no artifacts on the screen. I think that if some players are able to play the image without distortion, then the problem is not in the data that is responsible for the content of the frame, but in some meta-information or index, or something similar. But I can't figure out what exactly the source of problem is yet.

P.S. The stream I have recorded was not stable, some segments was dropped so I think this is a result of it. This file was cut without encoding from 20GB source file

Your video ist not 25 fps, but 25.002 fps, as you see in the picture below.


[Attachment 86939 - Click to enlarge]

To correct this, download clever FFmpeg-GUI, extract the zip to a new folder, rename this folder to clever and start the exe in it.
Follow the instructions for the first start.

Then load your b24 1.mp4, click main page, click extract streams.
Check the videostream only, click extract, answer the question with raw.

Click source, drag the new created b24 1.h264 file into the form, a windows appears asking for the framerate, enter 25 and click ok.
A new mp4 file is created and loaded.

Click main page, click multiplex, drag your b24 1.mp4 into the grid.
Select the new created videostream (in green) and the source audiostream (aac) and deselect the other videostream.
Set mp4 as container, check fast start, click multiplex.

Done.
The new created mp4 should play fine without glitches.

[DronZX]

Doesn't work. The video is still glitchy

[Attachment 86940 - Click to enlarge]

My test results

The video (source and new) plays properly in:
- VLC Player (PC version)
- Media Player Classic
- Windows 10 built-in player
- Windows Media Player

The video (source and new) plays glitchy in:
- QuickTime Player
- WinAmp
- AviDemux
- AVS Script made by MeGUI
- Telegram Messenger
- Android built-in player
- VLC Player (Android version)

Here is the same frame from the video converted from the source by VLC Player

[Attachment 86941 - Click to enlarge]

Update: I've got the same glitches in VLC Player (PC version) when I turned off hardware acceleration o_O

[DronZX]

Thank you everyone, it is solved. I have enabled video playback hardware acceleration everywhere (except Android device) and now in works properly. I don't know why it went that way but this solution is enough for me

[Lupine Assassin]

I'm curious, what's the link of the video you grabbed?

[DronZX]

I'm curious, what's the link of the video you grabbed?

https://tvbelgorod.ru:90/mirbelogorya/tracks-v1a1/mono.ts.m3u8