Strange green lines on the top of the screen

Slandscree

Newbie Joined: Apr 01, 2009 14:52 Messages: 15 Offline

Solved by

Jan 19, 2021 13:14

Hi!

I have problem with files renederd by PD 19. On the top of the screen appears green belt - look at the attached images pls.

Screenshot1

https://1drv.ms/u/s!AgaMXCc4ZBV9g_RhE2OfAh0vIhXEHA?e=sMXrdl

Screenshot2

https://1drv.ms/u/s!AgaMXCc4ZBV9g_Rgya4uNQh1mDW9_w?e=IviCOk

Now some deatils:

System Windows 10 + Core i9 9900K, 32GB DDR, RTX 3090 - system and drivers up to date

The problem appears only when I produce movie in 4K, when I set resolution FullHD there is no problem

The problem appears only when I use in PD movie files from my iPhone Pro Max - settings 4K/60FPS HEVEC - files from GoPro used in project are rendered fine. Of course the source files from Iphone don't have this green belt.

I tried many combinations in produce section of the PD, like type of generated files, different bitrates, frame types, tier types... - the rtersults are the same - green belt on the top

When I work with PD on project - there is no green belt.

When I begin to render the final file, I can see that green belt appears in preview window - only in parts where movie files from iPhone 12 pro are used.

Maybe u can give me some advice, what is the cause of this strange, annoying green belt.

Best regards
Witek

This message was edited 2 times. Last update was at Jan 19. 2021 13:16

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Jan 19, 2021 13:47

You might need to supply a sample clip to see if other users have the same issue. I tried a 4k, 60fps, HEVC file from here and had no issue, https://www.photographyblog.com/reviews/apple_iphone_12_pro_max_review/sample_images

As a sidenote, do you have QuickTime installed?

Jeff

Slandscree

Newbie Joined: Apr 01, 2009 14:52 Messages: 15 Offline

Jan 19, 2021 14:25

Thank you for replay.

No, I don't have QT installed.

Here is the sample movie from my phone - untouched.

https://1drv.ms/v/s!AgaMXCc4ZBV9g_RiYefCSF-VGhDEDw?e=WVhz2h

This message was edited 1 time. Last update was at Jan 19. 2021 14:28

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Jan 19, 2021 18:41

I could not replicate your issue. I tried multiple produce formats, H.264, H.265, multiple encode/decode settings, multiple players, including the PotPlayer in your pic and could not replicate the green line issue.

I'd try QT as needed for most MOV formats and also specify exactly what format you produced to for replication. It would also be of interest to know which GPU you are using in PD your RTX3090 or Intel UHD Graphics 630.

Jeff


Filename	PD19_12ProMax.png	Download
Description
Filesize	1780 Kbytes
Downloaded:	6 time(s)

This message was edited 2 times. Last update was at Jan 19. 2021 18:45

Slandscree

Newbie Joined: Apr 01, 2009 14:52 Messages: 15 Offline

Jan 21, 2021 10:23

Thank you again for your response.

I use for render nvidia RTX card, not Intel UHD included in CPU.

I have made some investigation. I noticed that this green belt appears after rendering when I use movie clips made with IPhone 12 Pro, but... only when I use DJI app to film and steer with gimbal.

I noticed that movie made by pure iOS camera app has the extension .mov, 60FPS and stereo sound, and movie clip made using DJI app has extension .mp4, 59,98FPS, mono sound (and green belt after rendering)

Soon I will send samples to test.

optodata

Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline

Jan 21, 2021 13:46

Quote I use for render nvidia RTX card, not Intel UHD included in CPU.

Try unchecking Enable hardware decoding from the Hardware Acceleration menu, then uncheck the Fast video rendering technology box on the Produce page and see if the green line disappears.

Slandscree

Newbie Joined: Apr 01, 2009 14:52 Messages: 15 Offline

Jan 21, 2021 14:22

I unchecked "Enable hardware decoding" on my long way before I write here Green belt persists.

Below Iinks to files:

Clip filmed with DJI app:
https://1drv.ms/u/s!AgaMXCc4ZBV9g_UHTTfvid6AqrzXWQ?e=E7N9He

Clip filmed with iOS app:
https://1drv.ms/v/s!AgaMXCc4ZBV9g_UFyfz7WBBjBuADuw?e=wOPE05

Movie rendered in PD using two above files:
https://1drv.ms/v/s!AgaMXCc4ZBV9g_UGz0h8GWe1e6h7Mw?e=yBGfxJ

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Jan 21, 2021 15:21

I can repeat your green line produce effect. On my platform its only sensitive to "Enable hardware decoding" in pref but it is not sensitive to GPU or CPU encoding. Using CPU de/encoding the green line is gone. For GTX1070 or RTX2070, the line is gone if CPU decoding is used while using GPU encoding.

Workaround I guess is to use CPU decoding, not much of a penalty, one really needs the GPU for HEVC encoding performance. I also found running source clip through HandBrake and producing to similar properties avoided the green line in latter PD produce regardless of CPU/GPU decoding or encoding.

Appears to perhaps be yet another GPU decoding anomaly, plenty with PD.

Jeff