Preserving Side Data information for 360 video transcoding using FFmpeg
问题 I am trying to transcode a 360 Video using ffmpeg (to play on Gear VR, for now), mainly to reduce the bitrate (this is a requirement). But the output file seems to remove the "Side Data" that has the 360 video metadata. Input file ffprobe result (note the Side Data section): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42mp41 creation_time : 2016-10-28T10:41:42.000000Z Duration: 00:02:09.56, start: 0.000000, bitrate: