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Each file's JSON gains imageMetadata, what extractImageMetadata finds in
the stored original (for a live photo, its image), or the reason the
read failed in imageMetadataError; a failed read fails neither the file
nor the run. A video is not read. An original is read when the run
stores it or when its JSON has neither field; otherwise the field is
carried over from that JSON, so a run does not read every original
again. The hand-built JPEG fixtures move to test/exif-jpeg.ts so the
backup tests can use them.
Judgement call: an original with nothing to record gets imageMetadata
{} instead of no field, so it is not read again on every run.
Model: opus-5-5
28 lines
1.1 KiB
TypeScript
28 lines
1.1 KiB
TypeScript
/**
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* `exif.heic`, beside this file: a real 64x64 HEIC whose EXIF holds the same
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* values as the hand-built JPEG in `exif-jpeg.ts`, for the tests of `exif()`,
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* `backup-metadata --exif` and the image metadata `quak backup` records.
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*
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* It was made once, in a throwaway node:22-alpine container (Alpine 3.23.3),
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* with libheif 1.23.0 and exiftool 13.55:
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*
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* apk add libheif-tools exiftool imagemagick
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* magick -size 64x64 gradient:red-blue -depth 8 in.png
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* heif-enc -q 30 -o exif.heic in.png
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* exiftool -overwrite_original \
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* -Make=Canon -Model="EOS R5" -LensModel="RF50mm F1.8 STM" \
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* -DateTimeOriginal="2021:07:15 14:30:00" -OffsetTimeOriginal="+02:00" \
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* -ExposureTime=1/250 -FNumber=2.8 -ISO=400 -FocalLength=50 \
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* -Orientation#=6 \
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* -GPSLatitude="40 26 46" -GPSLatitudeRef=N \
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* -GPSLongitude="79 58 56" -GPSLongitudeRef=W \
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* -GPSAltitude=12.5 -GPSAltitudeRef#=1 \
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* exif.heic
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*/
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import { readFileSync } from "node:fs";
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export const HEIC_WITH_EXIF = new Uint8Array(
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readFileSync(new URL("exif.heic", import.meta.url)),
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);
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