Trouble transcoding iPhone8 video, possibly stalling progress of library import

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Thanks for sharing the original .MOV: I was able to reproduce the issue, and the solution will be in the next build (v2.0.0-alpha.1).

It’s actually a no-code solution: I just had to change the default for the ffmpegTranscodeArgs setting. If you want to try it out before I get the build out, just edit your system settings.toml:

ffmpegTranscodeArgs = [
  "-c:a",
  "aac",
  "-c:v",
  "libx264",
  "-pix_fmt",
  "yuv420p",
  "-vf",
  "colorspace=all=bt709:iall=bt601-6-625:fast=1",
  "-movflags",
  "faststart",
  "-profile:v",
  "high"
]

(this replaces the -color_trc smpte2084 -color_primaries bt2020 with a correct video filter -vf switch. Here’s a nice writeup about what’s going on here).