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M
marshalls80180313
Known Participant
March 27, 2020
Question

Random bright frames / flicker in mp4 after export. PE 2018.

  • March 27, 2020
  • 1 reply
  • 1315 views

When watching an mp4 video created by PE 2018, every once in a while there is a slight flicker, i.e. one single frame randomly has a higher luminance than the others.  These "flashing" glitches are never present in the preview, only in the mp4 after export.  They are definitely not present in the original files and seem to appear in different places even without making any changes to the timeline.  I've experimented with different settings (turning maximum bit depth, hardware acceleration, etc... on/off) but different settings only lead to the glitch appearing in different locations.

 

Has anyone else experienced this?  Please help.  This is EXTREMELY annoying for a perfectionist like me.  I want a clean professional looking output.  These random flickers ruin it for me.

This topic has been closed for replies.

1 reply

S
Steve Grisetti
Legend
March 27, 2020

What device recorded your original video?

 

Open a sample of your raw footage in the free download MediaInfo. In MediaInfo, set View to Text and then copy the text of its report and paste it to this forum. We need to determine if the issue is in your source footage specs.

 

Also, what software are you playing your finished MP4 on? Try VLC Media Player. It's free and it has none of the limitations of say Windows Media Player or Quicktime.

M
marshalls80180313Author
Known Participant
March 27, 2020

Bright fames have appeared on an mp4 clip that I created/encoded with PE 18 itself then imported into the larger project.

 

General
Complete name : C:\Users\Marshall Stoner\Pictures\costa_rica_2020\project\opening.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/mp41)
File size : 143 MiB
Duration : 20 s 20 ms
Overall bit rate mode : Variable
Overall bit rate : 60.0 Mb/s
Encoded date : UTC 2020-03-06 18:30:35
Tagged date : UTC 2020-03-06 18:30:39
©TIM : 00:00:00:00
©TSC : 30000
©TSZ : 1001

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 4 frames
Format settings, GOP : M=3, N=29
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 20 s 20 ms
Bit rate mode : Variable
Bit rate : 60.0 Mb/s
Maximum bit rate : 120 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.965
Stream size : 143 MiB (100%)
Language : English
Encoded date : UTC 2020-03-06 18:30:35
Tagged date : UTC 2020-03-06 18:30:35
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

 

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