*.mp4 video file colors are different? #81307

New Issue

John · 2020-09-29T23:24:02+02:00

John commented

2020-09-29 23:24:02 +02:00

System Information
Operating system: Windows 10
Graphics card: GeForce GT 555M

Blender Version
Broken: 2.78c, 2.80, 2.90, 2.90.1

Short description of error
Blender -> Video Editing -> Video Sequencer -> Preview -> Added *.mp4 video file colors are different
Blender -> Render -> Render Animation -> Created *.mp4 video file colors are different

Exact steps for others to reproduce the error
Open the *.blend file in the *.zip file
Further Links: Big color problem with video editing?

Colors different on mp4 video file.zip

**System Information** Operating system: Windows 10 Graphics card: GeForce GT 555M **Blender Version** Broken: 2.78c, 2.80, 2.90, 2.90.1 **Short description of error** Blender -> Video Editing -> Video Sequencer -> Preview -> Added *.mp4 video file colors are different Blender -> Render -> Render Animation -> Created *.mp4 video file colors are different **Exact steps for others to reproduce the error** Open the *.blend file in the *.zip file Further Links: [Big color problem with video editing? ](https://blenderartists.org/t/big-color-problem-with-video-editing/1255975) [Colors different on mp4 video file.zip](https://archive.blender.org/developer/F8937526/Colors_different_on_mp4_video_file.zip)

John commented

2020-09-29 23:24:02 +02:00

Added subscriber: @blenderLight

John commented

2020-09-29 23:32:33 +02:00

If the *.blend file is not working.
Open blender. Go to video editing and paste the "Pattern-video-1.mp4" in the sequencer.

If the *.blend file is not working. Open blender. Go to video editing and paste the "Pattern-video-1.mp4" in the sequencer.

Richard Antalik commented

2020-10-07 15:21:24 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-10-07 15:21:24 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Richard Antalik commented

2020-10-07 15:21:24 +02:00

Can confirm that image is not correct, the issue is not immediately known to me though. Will check this in detail though.

John commented

2020-10-08 01:21:31 +02:00

Slowly, I think that this is a *.mp4 resolution problem. Not a Blender problem.

I've made a small video 'Pattern-Video-2-854x480.mp4' (look at the *.zip file) with a resolution of 854x480 pixels.
Open Blender. Go to Video Editing. Paste video in the video sequencer. Go to Render Properties -> Color Management. Change View Transform to Standard.
Colors are looking correct!

I came to the resolution problem on this following video.
Go to this link and pause the video. Change to full screen mode. After 1 second the green color changes to green. No pattern is visible. I've tested on a 4K resolution TV. It looks weird.
https://www.youtube.com/watch?v=tTK5wHJIrUE&feature=youtu.be&t=223

I added some screenshots in the *.zip file.
These photos are from a 4K resolution TV. The photos were shot with my smartphone.
Image-1.png is the default video resolution on YouTube.
Image-2_Full_Screen_4K_resolution.png is the full screen mode on YouTube on 4K resolution screen.
Do you see the difference. Image-2_Full_Screen_4K_resolution.png green looks weird.

MP4 VIdeo Pattern problem.zip

Slowly, I think that this is a *.mp4 resolution problem. Not a Blender problem. I've made a small video 'Pattern-Video-2-854x480.mp4' (look at the *.zip file) with a resolution of 854x480 pixels. Open Blender. Go to Video Editing. Paste video in the video sequencer. Go to Render Properties -> Color Management. Change View Transform to Standard. Colors are looking correct! I came to the resolution problem on this following video. Go to this link and pause the video. Change to full screen mode. After 1 second the green color changes to green. No pattern is visible. I've tested on a 4K resolution TV. It looks weird. https://www.youtube.com/watch?v=tTK5wHJIrUE&feature=youtu.be&t=223 I added some screenshots in the *.zip file. These photos are from a 4K resolution TV. The photos were shot with my smartphone. Image-1.png is the default video resolution on YouTube. Image-2_Full_Screen_4K_resolution.png is the full screen mode on YouTube on 4K resolution screen. Do you see the difference. Image-2_Full_Screen_4K_resolution.png green looks weird. [MP4 VIdeo Pattern problem.zip](https://archive.blender.org/developer/F8966003/MP4_VIdeo_Pattern_problem.zip)

Richard Antalik commented

2020-10-08 14:16:54 +02:00

Thanks for another example. I haven't looked yet on what's going on, but it is not clear to me how resolution would affect this.

John commented

2020-10-08 16:32:22 +02:00

I don't know.

In the file "Colors different on mp4 video file.zip" there is "Pattern-video-1.mp4" with a resolution of 1920 x 1080 pixels. Colors are not correct in blender.

In the file "MP4 VIdeo Pattern problem.zip" there is "Pattern-Video-2-854x480.mp4" with a resolution of 854 x 480 pixels. Colors are correct in blender.

In this video : https://www.youtube.com/watch?v=tTK5wHJIrUE&feature=youtu.be&t=223
Open the link and pause the video. Watch on a 4K resolution screen.
The colors are correct with the default YouTube video resolution.
The colors are not correct with YouTube full screen video resolution.

Look at this video on instagram.
https://www.instagram.com/tv/CGFbPUvoTcU/?utm_source=ig_web_button_share_sheet
Pause the video at 0:10. Do you see the pattern texture? It's notcorrect.

The same video is here:
https://youtu.be/5Rx8tpy_6QA?t=10
Pause the video at 0:10. Default YouTube resolution video. Colors are correct.
The colors are not correct with YouTube full screen video 4K resolution.

Weird.

So, I think, that is maybe a general *.mp4 problem and not a Blender problem. I'm not an expert on this.

I don't know. In the file "Colors different on mp4 video file.zip" there is "Pattern-video-1.mp4" with a resolution of 1920 x 1080 pixels. Colors are **not** correct in blender. In the file "MP4 VIdeo Pattern problem.zip" there is "Pattern-Video-2-854x480.mp4" with a resolution of 854 x 480 pixels. Colors are correct in blender. In this video : https://www.youtube.com/watch?v=tTK5wHJIrUE&feature=youtu.be&t=223 Open the link and pause the video. Watch on a 4K resolution screen. The colors are correct with the default YouTube video resolution. The colors are **not** correct with YouTube full screen video resolution. Look at this video on instagram. https://www.instagram.com/tv/CGFbPUvoTcU/?utm_source=ig_web_button_share_sheet Pause the video at 0:10. Do you see the pattern texture? It's **not**correct. The same video is here: https://youtu.be/5Rx8tpy_6QA?t=10 Pause the video at 0:10. Default YouTube resolution video. Colors are correct. The colors are **not** correct with YouTube full screen video 4K resolution. Weird. So, I think, that is maybe a general *.mp4 problem and not a Blender problem. I'm not an expert on this.

John commented

2020-10-08 16:33:11 +02:00

This comment was removed by @blenderLight

*This comment was removed by @blenderLight*

Richard Antalik commented

2020-10-17 03:23:44 +02:00

I have looked at this, and found same issue when converting provided file to png with ffmpeg, so I have created report there: https://trac.ffmpeg.org/attachment/ticket/8937/

Vallerii Zapodovnikov commented

2020-10-17 19:30:58 +02:00

Added subscriber: @ValZapod

Vallerii Zapodovnikov commented

2020-10-17 19:30:58 +02:00

ffmpeg does not support "playing" with file without correct metadata. For HD video, you need to set ffmpeg incorrect_color_h264.mp4 -c copy -colorspace bt709 -color_primaries bt709 -color_trc bt709 out.mp4.

Vallerii Zapodovnikov commented

2020-10-17 19:45:29 +02:00

{F9007024}Here is that file, now with correct metadata, it now works correctly.

In mediainfo the difference is:

Color range                 : Limited
Color primaries             : BT.709
Transfer characteristics    : BT.709
Matrix coefficients         : BT.709

{[F9007024](https://archive.blender.org/developer/F9007024/Pattern-video-1.mp4)}Here is that file, now with correct metadata, it now works correctly. In mediainfo the difference is: ``` Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 ```

Evan Wilson commented

2020-10-17 21:12:31 +02:00

Added subscriber: @EAW

Evan Wilson commented

2020-10-17 21:12:31 +02:00

Pattern-video-1.mp4

FYI, phabricator (the software this tracker runs) requires a space after the } to display an uploaded file (which makes it easy to save it for testing without having to go to another page.). Just letting you know as it trips up many users 😉

>[Pattern-video-1.mp4](https://archive.blender.org/developer/F9007024/Pattern-video-1.mp4) FYI, phabricator (the software this tracker runs) requires a space after the `}` to display an uploaded file (which makes it easy to save it for testing without having to go to another page.). Just letting you know as it trips up many users 😉

Evan Wilson commented

2020-10-17 21:13:41 +02:00

And thank you for the metadata info @ValZapod!

Vallerii Zapodovnikov commented

2020-10-17 21:38:33 +02:00

You need to understand that the default is indeed because of resolution. For HD video it is BT.709 and for sd video, it is much more complex. And do not let me start on UHD HDR, it is multiple versions of BT.2020 & PQ (in YCBCR or BT.2100 ICTCP) and variant of it IPTPQc2 in Dolby Vision profile 5. So it is crazy.

Richard Antalik commented

2020-10-19 10:12:11 +02:00

Changed status from 'Confirmed' to: 'Archived'

Richard Antalik closed this issue

2020-10-19 10:12:11 +02:00

Richard Antalik self-assigned this 2020-10-19 10:12:11 +02:00

Richard Antalik commented

2020-10-19 10:12:11 +02:00

@ValZapod Thank you for identifying problem here. Since this is not bug in Blender I am closing this.

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*.mp4 video file colors are different? #81307