Removing location metadata

[SandroJijavadze]

With ffmpeg I achieve this with:
ffmpeg -i in.FORMAT -map_metadata -1 -c:v copy -c:a copy out.FORMAT
It leaves width/height/bitrate etc and removes GPS location, which is what I want. Can I achieve the same using gmf?

I tried remuxing with the example, replaced CloseInput()/CloseOutput() with CloseInputAndRelease/CloseOutputAndRelease
https://github.com/3d0c/gmf/blob/master/examples/remuxing.go

Which did the job of removing that metadata but created a file 2 mb smaller than original and seems to be corrupt, vlc can't play it properly, video is skippy and vlc shows errors:
[h264 @ 0x7fe894004e80] get_buffer() failed
[h264 @ 0x7fe894004e80] thread_get_buffer() failed
[h264 @ 0x7fe894004e80] decode_slice_header error
[h264 @ 0x7fe894004e80] no frame!

I'm trying to figure it out myself but if anyone could point me in the right direction it would be very helpful.

[SandroJijavadze]

ffmpeg -v error -i videoOutput.mp4 -f null - 2>error.log

On original file this logs no errors, but on remuxed one I get:

[h264 @ 0x561df75da4c0] decode_slice_header error
[h264 @ 0x561df75da4c0] no frame!
[h264 @ 0x561df75da4c0] non-existing PPS 0 referenced
Last message repeated 1 times
[h264 @ 0x561df75da4c0] decode_slice_header error
[h264 @ 0x561df75da4c0] no frame!
[h264 @ 0x561df75da4c0] non-existing PPS 0 referenced
Last message repeated 1 times
[h264 @ 0x561df75da4c0] decode_slice_header error
[h264 @ 0x561df75da4c0] no frame!
[h264 @ 0x561df75da4c0] non-existing PPS 0 referenced
Last message repeated 1 times
[h264 @ 0x561df75da4c0] decode_slice_header error
[h264 @ 0x561df75da4c0] no frame!
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 702
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 703
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 704
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 705
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 706
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 707
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 708
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 709
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 710
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 711
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 712
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 713
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 714
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 715
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 716
[null @ 0x561df77f3bc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1001 >= 717

error.log

BTW, thanks for the package 🙏
I'll look into transcode.go, might get better idea