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Hello,
I need to extract some additional data (GoPro GPS data) from a MP4 file and add them to another MP4 file.
I'm able to extract them with the command mp4box.exe -raw 3 ..\video.mp4
But when I try to import them again with this command mp4box.exe -add ..\GoproVideo.mp4 -set-meta meta:tk=3 -add-item ..\video_track3.gpmd:tk=3 -new output.mp4
I got the following error Trying to add item, but missing meta box
Am I missing something? Looking at the documentation, command line seems ok because I set the meta type and then add the item to it. Should I create first the track3? Or is automatically created with the set-meta command?
This is what I get if I run a -info on the original file
# Track 3 Info - ID 3 - TimeScale 1000
Media Duration 00:14:41.526
Track has 2 edits: track duration is 00:14:41.628
Track flags: Enabled In Movie In Preview
Media Samples: 8801
1 UDTA types:
meta:
Media Type: meta:gpmd
Unknown Metadata Stream
RFC6381 Codec Parameters: gpmd
All samples are sync
Max sample duration: 104 / 1000
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I looked for a similar issue and couldn't find any.
Hello,
I need to extract some additional data (GoPro GPS data) from a MP4 file and add them to another MP4 file.
I'm able to extract them with the command
mp4box.exe -raw 3 ..\video.mp4
But when I try to import them again with this command
mp4box.exe -add ..\GoproVideo.mp4 -set-meta meta:tk=3 -add-item ..\video_track3.gpmd:tk=3 -new output.mp4
I got the following error
Trying to add item, but missing meta box
Am I missing something? Looking at the documentation, command line seems ok because I set the meta type and then add the item to it. Should I create first the track3? Or is automatically created with the set-meta command?
This is what I get if I run a -info on the original file
Thanks for reporting your issue. Please make sure these boxes are checked before submitting your issue - thank you!
Detailed guidelines: https://gpac.io/bug-reporting/
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