Skip to content

Instantly share code, notes, and snippets.

@James2022-rgb

James2022-rgb/concat_gopro_mp4_preserving_gpmf.bat

Created February 8, 2026 18:39
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save James2022-rgb/1104e43e1ac816c5e5a2a701ab24f109 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save James2022-rgb/1104e43e1ac816c5e5a2a701ab24f109 to your computer and use it in GitHub Desktop.
Download ZIP
Concatenate split GoPro HERO 11 MP4 files preserving GPMF streams
Raw
concat_gopro_mp4_preserving_gpmf.bat
REM GoPro HERO 11
REM
REM Where input.txt is e.g.
REM
REM file GX010017.MP4
REM file GX020017.MP4
REM Concatenate MP4 files preserving GPMF stream:
ffmpeg -f concat -i input.txt -map 0:v -map 0:a -map 0:3 -copy_unknown -tag:3 gpmd -c copy concatenated.mp4
REM Re-encode to H.265/HEVC using nvenc:
ffmpeg -i concatenated.mp4 -map 0:v -map 0:a -map 0:2 -c:v hevc_nvenc -cq 23 -c:a copy -c:d copy out.mp4
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment