how to extract gopro mp4 or .360 videos gyro and focal length ( angle of view)

gopro / gpmf-parser

Parser for GPMF™ formatted telemetry data used within GoPro® cameras.

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how to extract gopro mp4 or .360 videos gyro and focal length ( angle of view) #164

Closed mcvarer closed 2 years ago

mcvarer commented 2 years ago

I have tried a lot of but i have no solution. i used telemetry, trekview but not found.

I can extract from images these data but don't videos.

such as Angle of View : 121 or Field of View : 18mm

dnewman-gpsw commented 2 years ago

Sorry, maybe I don't understand the question, but these are not GPMF data fields. They look like they might be EXIF data, which is standardized for photos only, video files do not have EXIF.

mcvarer commented 2 years ago

Sorry, I couldn't explain.

How to extract field of view or angle of view from gopro videos?

dnewman-gpsw commented 2 years ago

For .360 files the answer is infinite, there is no limit to the FOV. For HERO style capture in .MP4, the metadata is ZFOV for the diagonal FOV. Here is a web tool for extracting header (only) GPMF metadata that includes ZFOV https://gopro.github.io/labs/control/metadata/