Using captions P4P
3501 21 2018-7-1
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Guillaume89
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Hi,

I am very very mad. I recorded video with caption for technical purposes.


I am understanding that .srt are no longer created, but the geodata is stored inside the video (I can activate captions by using vlc media)

I NEED, to export this data, I tried every software with no results.


Unable to import the geodata to use it in premiere pro

PLEASE
I need help !!


2018-7-1
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KedDK
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Not a definitive answer as i have not tried yet but only researched a little a while ago.

It seem that FFmpeg is the best solution, perhaps something in this dialog could be helpful.
A possible alternative might be this CCextractor tool, but in general most that turn up when searching seem to be something i would not like to get on my computers, beside FFmpeg.

In my opinion DJI should provide a tool that could manage the files generated by their equipment. Something like this could be part of Assistant2 being that it would assist the use of our purchases.
2018-7-1
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Cetacean
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KedDK Posted at 2018-7-1 22:40
Not a definitive answer as i have not tried yet but only researched a little a while ago.

It seem that FFmpeg is the best solution, perhaps something in this dialog could be helpful.

Aloha Ked,

     Good idea and presented well.

Aloha and Drone On!
2018-7-1
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deep-jeep
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hi how to get lat long information in a video recording via P4P ? what is .srt file what is the use ?
2018-7-2
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Guillaume89
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Hi and thanks for your replies.

In fact I used ffmpeg to get srt files and its works fine.

Now i'm working into a way to import it to premiere

cheers
2018-7-2
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KedDK
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deep-jeep Posted at 2018-7-2 03:41
hi how to get lat long information in a video recording via P4P ? what is .srt file what is the use ?

You enable captions, it is a subtitle file used to display the contained information on videos.
2018-7-2
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KedDK
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Guillaume89 Posted at 2018-7-2 03:43
Hi and thanks for your replies.

In fact I used ffmpeg to get srt files and its works fine.

nice to hear you found a solution, best luck with the rest.
2018-7-2
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Shankar Dixit
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Guillaume89 Posted at 2018-7-2 03:43
Hi and thanks for your replies.

In fact I used ffmpeg to get srt files and its works fine.

Hey Guillaume89, could you please help me out with the process of extracting the srt file from a video shot using a p4p? It would be really helpful.
2018-7-13
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Ray_Drone_Pilot
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Hi,

I have interest in this also. Do I understand it correct that it is possible to add certain flight information into your video? I dont have any idea where to get this info and how to do this but I like to learn it.

Thanks in advance

Ray
2018-7-13
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sky wombat
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OK I know you can display subtitles in VLC media player but for some reason I have been unable to increase font size. Any idea folks?
2018-7-13
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KedDK
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Shankar Dixit Posted at 2018-7-13 02:12
Hey Guillaume89, could you please help me out with the process of extracting the srt file from a video shot using a p4p? It would be really helpful.

See if you can use what was posted at https://forum.dji.com/forum.php?mod=viewthread&tid=155794&page=1#pid1449919 and the following posts.
2018-7-15
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KedDK
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Ray_Drone_Pilot Posted at 2018-7-13 04:08
Hi,

I have interest in this also. Do I understand it correct that it is possible to add certain flight information into your video? I dont have any idea where to get this info and how to do this but I like to learn it.

If you enable captions, as far i remember it is part of the camera settings, then it will add the information in the videos but only a few players like VLC are able to display it.
2018-7-15
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KedDK
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sky wombat Posted at 2018-7-13 05:24
OK I know you can display subtitles in VLC media player but for some reason I have been unable to increase font size. Any idea folks?

I believe you can't change neither size nor placement of the captions in VLC.
2018-7-15
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sky wombat
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just download VLC version 3.0.3 and so far I am able to change font size. Still stays in same place & can't strip out unwanted data.
2018-7-15
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Ray_Drone_Pilot
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KedDK Posted at 2018-7-15 22:31
If you enable captions, as far i remember it is part of the camera settings, then it will add the information in the videos but only a few players like VLC are able to display it.

Thanks KedDK I will have a lool but I have not seen such a option in the P4P+ app so maybe this option does not exists?
2018-7-16
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KedDK
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Ray_Drone_Pilot Posted at 2018-7-16 04:55
Thanks KedDK I will have a lool but I have not seen such a option in the P4P+ app so maybe this option does not exists?

It sure has, i am a + owner myself, see this pic.

Screenshot_2018-07-16-16-40-37.png
2018-7-16
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Ray_Drone_Pilot
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hmmm great thanks a lot!!!!
2018-7-16
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Ray_Drone_Pilot
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It's turned on now lets see next video again thanks a lot!
2018-7-16
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KedDK
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sky wombat Posted at 2018-7-15 23:24
just download VLC version 3.0.3 and so far I am able to change font size. Still stays in same place & can't strip out unwanted data.

If you follow the link in #11 it show how a .srt file can be extracted, that can easy be edited with search and replace.

And you're right VLC 3.0.1 also could change the font, i just didn't notice that part of the preferences. Tried it out but don't think the size change that much.
2018-7-17
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Mark Weiss
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Does anyone know what format and service these captions are encoded in? ie., CEA-708, Service 2, etc? You won't see them if you don't set your editor to display the particular CC stream that is in the footage.
2018-7-21
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sky wombat
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I guess it pays to take notice of the initial question but as a lazy flyer I just export flight data into Airdata then export the kml into Google Earth and read to coordinates I need.
2018-7-22
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0Kajuna0
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I have tried creating a small batch script with ffmpeg for extracting the subtitles of multiple files. I can't test it as I don't own a Phantom, so any feedback is very welcome.

You can find the download at the bottom of my SRT Flight Data Viewer: https://djitelemetryoverlay.com/

Hope this is useful
2018-8-9
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