The Samsung Gear360 2017 records dual-fisheye video. ie. two side-by-side circular images in a black square, one from each lens.
General [...] Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 (mp42/isom/hvc1) [...] Video [...] Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main@L5.1@Main Codec ID : hvc1 Codec ID/Info : High Efficiency Video Coding
I use the camera as a bicycle dashcam. As I am using linux and don't usually care enough to convert for proper viewing, I just view the raw files off the sdcard.
This is fine if the camera is placed upright. The left and right circles are oriented as:
top | top left right | left right bottom | bottom
However, if the camera is placed on its side when recording, which would be more convenient for mounting on my bike, it does not detect or compensate for the orientation and the layout becomes:
left | right bottom top | top bottom right | left
Is there a fast, simple, ideally lossless, way to independently rotate the two halves of the video, the left half by 90 degrees anti-clockwise and the right half by 90 degrees clockwise?
mpv, etc, can do this?