I have not run this completely to ground, but it appears that the latest deb-multimedia 10:6.0.1 now fails with a header error trying to decode frames from a BlackVue DR900S camera. eg;
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55e6a7a762c0] error reading header
20231119_115953_NF.mp4: Invalid data found when processing input
So if I try to run the tools locally it may fail. (I upload the mp4’s direct though)
If anyone knows a way to ignore the error would you please advise as I use frames for local OSM work
Hi @bob3bob3 - do you need ffmpeg for these uploads or are you able to upload directly using mapillary_tools or the desktop uploader? They should be able to process the mp4 files directly. Give it a go and let us know what you find. cc: @adalvit
The direct upload works fine. I did a small upload run to test if the Mapillary server processing was affected. I was going to suggest your dev/server people keep this in mind.
I do however also locally process the videos, so I can filter and do OSM edits. bob3bob3's Diary | OpenStreetMap if you wish to read. I also sent a document to @eneerhut
I am using one of the Mapillary supplied BlackVue/firmware combinations. I run at 2FPS which is probably quite rare. I’d suggest that the header damage was something in the original or mapillary firmware. If I am the only one with the problem the workaround I have in place works fine.
As I recall ffmpeg always quoted a warning on BV videos, but since it always worked I haven’t examined that. I’ll check that later today.