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Is there a problem since the last update?
392 39 3-8 11:51
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Blériot53
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Everything was fine with my P3, until I did the last firmware update.
Video at 2.7k and 30FPS records as way overblown, and yet the low res version looks ok :
Am I missing something, or is there a problem?    EDIT:  When I view the two clips here, they look fine.And yet, this is what I see on my laptop screen (Still screen grab below)
Examples below.
LOW RES

FULL RES



3-8 11:51
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Blériot53
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3-8 12:01
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DJI Gamora
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Hi there! Thank you for reaching out. Could you try to play the footage in different media player/software and see if the issue still persists?
3-9 01:27
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Blériot53
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DJI Gamora Posted at 3-9 01:27
Hi there! Thank you for reaching out. Could you try to play the footage in different media player/software and see if the issue still persists?

Hi DJI Gamora. It does seem to exhibit this issue in some players, but not in others:
Windows Media Player  shows it massively over-exposed, whereas in Windows Media Player (Legacy) it looks fine.
VLC Media Player will only show the LRF ( Low resolution file)
Microsoft Clipchamp plays it correctly.
Google Chrome plays it correctly.
It's beginning to look like the problem lies with the Windows Media Player.
3-9 02:01
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DJI Gamora
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Blériot53 Posted at 3-9 02:01
Hi DJI Gamora. It does seem to exhibit this issue in some players, but not in others:
Windows Media Player  shows it massively over-exposed, whereas in Windows Media Player (Legacy) it looks fine.
VLC Media Player will only show the LRF ( Low resolution file)

Thank you for your response. This is a normal phenomenon, LRF is a low-resolution file, when converted to video, its resolution and frame rate will be reduced, and the general frame rate will be reduced to 30fps, please feel free to use it.
3-9 02:59
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Blériot53
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DJI Gamora Posted at 3-9 02:59
Thank you for your response. This is a normal phenomenon, LRF is a low-resolution file, when converted to video, its resolution and frame rate will be reduced, and the general frame rate will be reduced to 30fps, please feel free to use it.

Unfortunately, that doesn't explain why the MP4 version displays vastly overexposed in some players.
3-9 03:22
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Montfrooij
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Can you share the original file here via a file transfer service?
3-9 04:15
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Blériot53
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Montfrooij Posted at 3-9 04:15
Can you share the original file here via a file transfer service?

I'll PM you later.
3-9 08:25
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Blériot53
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DJI Gamora Posted at 3-9 02:59
Thank you for your response. This is a normal phenomenon, LRF is a low-resolution file, when converted to video, its resolution and frame rate will be reduced, and the general frame rate will be reduced to 30fps, please feel free to use it.

Problem resolved:
For some reason, when the firmware update was installed, the video settings were changed to HLG rather than NORMAL.  Maybe a bug. Re-setting it back to NORMAL seems to have cured it. Shall have to wait for Daylight in the morning to test and confirm.
3-9 12:51
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Blériot53
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Montfrooij Posted at 3-9 04:15
Can you share the original file here via a file transfer service?

Problem resolved:
For some reason, when the firmware update was installed, the video settings were changed to HLG rather than NORMAL.  Maybe a bug. Re-setting it back to NORMAL seems to have cured it. Shall have to wait for Daylight in the morning to test and confirm.
3-9 12:51
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DJI Gamora
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Blériot53 Posted at 3-9 03:22
Unfortunately, that doesn't explain why the MP4 version displays vastly overexposed in some players.

Hi there. The issue might be caused by the media player, which could not render the data from the high-resolution video. Please use the appropriate software to view the video.
3-9 13:50
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DJI Gamora
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Blériot53 Posted at 3-9 12:51
Problem resolved:
For some reason, when the firmware update was installed, the video settings were changed to HLG rather than NORMAL.  Maybe a bug. Re-setting it back to NORMAL seems to have cured it. Shall have to wait for Daylight in the morning to test and confirm.

Hi there. We are glad that your issue has been resolved. Should you require further assistance, please don't hesitate to get back to us.
3-9 15:35
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Montfrooij
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Blériot53 Posted at 3-9 12:51
Problem resolved:
For some reason, when the firmware update was installed, the video settings were changed to HLG rather than NORMAL.  Maybe a bug. Re-setting it back to NORMAL seems to have cured it. Shall have to wait for Daylight in the morning to test and confirm.

I wonder why HLG does that.
It makes judging the exposure close to impossible.
3-9 23:21
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Montfrooij
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DJI Gamora Posted at 3-9 15:35
Hi there. We are glad that your issue has been resolved. Should you require further assistance, please don't hesitate to get back to us.

Any idea why the screen does this when the device is in HLG mode?It makes checking the exposure very difficult.


3-9 23:22
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Blériot53
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Montfrooij Posted at 3-9 23:21
I wonder why HLG does that.
It makes judging the exposure close to impossible.

I've reset it to NORMAL now, and I'm about to go out and test it again.
3-9 23:33
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Montfrooij
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Blériot53 Posted at 3-9 23:33
I've reset it to NORMAL now, and I'm about to go out and test it again.

Weird. HLG is close to useless if this is how it works.
3-9 23:45
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DJI Gamora
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Montfrooij Posted at 3-9 23:21
I wonder why HLG does that.
It makes judging the exposure close to impossible.

Hi there, he dynamic range is impacted by various factors. In the case of Osmo Pocket 3, the maximum attainable dynamic range is 12.7 stops.

Due to differences in shooting settings and scenes, the actual dynamic range of footage may vary, making it impossible to provide specific dynamic ranges for Normal, D-Log M, and HLG modes.
3-10 00:39
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Montfrooij
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DJI Gamora Posted at 3-10 00:39
Hi there, he dynamic range is impacted by various factors. In the case of Osmo Pocket 3, the maximum attainable dynamic range is 12.7 stops.

Due to differences in shooting settings and scenes, the actual dynamic range of footage may vary, making it impossible to provide specific dynamic ranges for Normal, D-Log M, and HLG modes.
Thanks for the explanation!
3-10 00:40
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DJI Gamora
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Montfrooij Posted at 3-10 00:40
Thanks for the explanation!

You're welcome. If you have any further questions or concerns, please do not hesitate to contact our online service, you could also visit : https://www.dji.com/support?site=brandsite&from=nav.
3-10 03:02
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Montfrooij
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DJI Gamora Posted at 3-10 03:02
You're welcome. If you have any further questions or concerns, please do not hesitate to contact our online service, you could also visit : https://www.dji.com/support?site=brandsite&from=nav.

Thanks, I will do!
3-10 03:45
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Blériot53
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Montfrooij Posted at 3-9 23:45
Weird. HLG is close to useless if this is how it works.

Just got back from 14Km walk. Got some footage to download and check out.
3-10 04:16
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Montfrooij
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Blériot53 Posted at 3-10 04:16
Just got back from 14Km walk. Got some footage to download and check out.

That sounds good.
I'll try and fly soon.
3-10 04:37
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Blériot53
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Montfrooij Posted at 3-10 04:37
That sounds good.
I'll try and fly soon.

If your weather is anything like ours, it should be ideal flying weather.
3-10 04:40
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Montfrooij
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Blériot53 Posted at 3-10 04:40
If your weather is anything like ours, it should be ideal flying weather.

Yeah, it was nice.
Just made 2 flights.
3-10 05:34
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Blériot53
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Montfrooij Posted at 3-10 05:34
Yeah, it was nice.
Just made 2 flights.

Just downloaded and reviewed today's footage from the Pocket3, back on the NORMAL video setting.
4K @ 30FPS.  It's perfect.  Here's an example:

3-10 05:41
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Blériot53
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Montfrooij Posted at 3-10 05:34
Yeah, it was nice.
Just made 2 flights.

Just downloaded and reviewed today's footage from the Pocket3, back on the NORMAL video setting.
4K @ 30FPS.  It's perfect.  Here's an example:

3-10 05:41
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Montfrooij
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Blériot53 Posted at 3-10 05:41
Just downloaded and reviewed today's footage from the Pocket3, back on the NORMAL video setting.
4K @ 30FPS.  It's perfect.  Here's an example:
https://cdn.djivideos.com/video_play/b3330d34-7111-45f4-b343-5aefbc610aa8

Looks great.
Even double great
3-10 05:47
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Blériot53
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Montfrooij Posted at 3-10 05:47
Looks great.
Even double great

Twitchy finger - double post
3-10 06:09
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Montfrooij
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Blériot53 Posted at 3-10 06:09
Twitchy finger - double post

Happens to the best of us.
3-10 06:13
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Blériot53
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Montfrooij Posted at 3-10 06:13
Happens to the best of us.

Especially me
3-10 06:20
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Montfrooij
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Exactly
3-10 06:30
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Blériot53
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Thanks!  I think
3-10 06:32
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Montfrooij
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100% right about that.
3-10 06:34
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DJI Gamora
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You're most welcome and we appreciate your kind understanding. Do not hesitate to contact us back if there's any further inquiry.
3-10 07:29
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SimonMW
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Just to add, as you rightly discovered, your original footage was HLG HDR. The reason the footage looked overblown was because the player recognised it as HDR footage, but you were playing it on an SDR screen (or didn't have your computer OS set to display HDR). If you have a Mac, if you go to the display settings you can set it to HDR and it will play without the over exposure clipping. I'm not sure what the setting is on Windows, but you'll need an HDR monitor to see it properly regardless.
3-11 00:11
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Blériot53
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SimonMW Posted at 3-11 00:11
Just to add, as you rightly discovered, your original footage was HLG HDR. The reason the footage looked overblown was because the player recognised it as HDR footage, but you were playing it on an SDR screen (or didn't have your computer OS set to display HDR). If you have a Mac, if you go to the display settings you can set it to HDR and it will play without the over exposure clipping. I'm not sure what the setting is on Windows, but you'll need an HDR monitor to see it properly regardless.

Thanks for your input.
Yes, that's the issue. I don't have HDR on the laptop  (Windows not Mac)
The work-around is to view the footage in Google Chrome, which displays it correctly.
The issue with the firmware update turned out to be that it reset the default recording to HLG rather than NORMAL.  Now that I've put it back to normal manually, everything is OK again
3-11 00:33
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No Original Thought
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This all sounds a bit odd to me.

HLG is a way of encoding HDR footage so that it CAN be played back on SDR systems.

With regular HDR content you would get what looks a bit like posterization or banding in the colours that your system can't display.

The HLG (High Log Gamma) encoding method effectively sticks and SDR version of the video in the bits that your system can read, and the extra HDR information in the bits that your system can't get to.

That way a system that is not HDR or HLG aware will only see the data to display an SDR version of the video, the other data bits are not just ignored, they are effectively not even seen.

On an HDR HLG capable system you will see the full High Dynamic Range video as it is able to both read and display the HDR data and can understand the HLG encoding.

(In fact an HDR system that is not HLG compatible may also display SDR video from HDR HLG content as it doesn't know how to access the extra data.)

So, this seems odd to me.
3-11 01:03
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Blériot53
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No Original Thought Posted at 3-11 01:03
This all sounds a bit odd to me.

HLG is a way of encoding HDR footage so that it CAN be played back on SDR systems.

It confuses me too. Particularly as it looks OK in some viewers and not in others - on the same screen.
Suffice to say, I've got things back the way I want them now, and it looks OK to me
I don't know why the update should have upset the Status Quo, but on my device it did.
3-11 06:27
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No Original Thought Posted at 3-11 01:03
This all sounds a bit odd to me.

HLG is a way of encoding HDR footage so that it CAN be played back on SDR systems.

It depends what the video player is capable of. If it doesn't have the ability to collapse down to SDR it'll just play it with the full HDR data and assume it's going out to an HDR display. So, although HLG can 'elegantly' down convert to an SDR display, the player itself needs to be able to recognise that this needs to be done.
3-12 10:39
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SimonMW Posted at 3-12 10:39
It depends what the video player is capable of. If it doesn't have the ability to collapse down to SDR it'll just play it with the full HDR data and assume it's going out to an HDR display. So, although HLG can 'elegantly' down convert to an SDR display, the player itself needs to be able to recognise that this needs to be done.

My understanding of HLG was that it was analogous to the way colour TV was introduced and intended to achieve the same comparability.

When TV broadcasts in colour started you could still watch the colour broadcasts on old black and white TVs that were made before colour and the colour broadcasts methods were conceived.

This was achieved by adding the colour in a way that the black and white TVs didn't even 'see' in the signal.

My understanding was that HLG does the same.

However, if the deciding software doesn't recognise that the display it is displaying on is not HDR compatible, then it conceivably output a non-HLG HDR signal to that display which the display wouldn't be able to handle.

That said, seeing problems with VLC is very bizarre, that has always been a go to for troubleshooting issues for me.
3-13 01:10
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