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Add support for J2C #596

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merged 2 commits into from
Apr 25, 2023
Merged

Add support for J2C #596

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716a1cd
Add support for J2C
marcosc90 Apr 23, 2023
cc5e819
Merge branch 'main' into support-j2c
sindresorhus Apr 25, 2023
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2 changes: 2 additions & 0 deletions core.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,7 @@ export type FileExtension =
| 'xlsx'
| '3gp'
| '3g2'
| 'j2c'
| 'jp2'
| 'jpm'
| 'jpx'
Expand Down Expand Up @@ -236,6 +237,7 @@ export type MimeType =
| 'video/mp2t'
| 'application/x-blender'
| 'image/bpg'
| 'image/j2c'
| 'image/jp2'
| 'image/jpx'
| 'image/jpm'
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7 changes: 7 additions & 0 deletions core.js
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Expand Up @@ -1201,6 +1201,13 @@ class FileTypeParser {
};
}

if (this.check([0xFF, 0x4F, 0xFF, 0x51])) {
return {
ext: 'j2c',
mime: 'image/j2c',
};
}

if (this.check([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A])) {
// JPEG-2000 family

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Binary file added fixture/fixture.j2c
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1 change: 1 addition & 0 deletions package.json
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Expand Up @@ -132,6 +132,7 @@
"pptx",
"xlsx",
"3gp",
"j2c",
"jp2",
"jpm",
"jpx",
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1 change: 1 addition & 0 deletions readme.md
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Expand Up @@ -400,6 +400,7 @@ Returns a `Set<string>` of supported MIME types.
- [`ics`](https://en.wikipedia.org/wiki/ICalendar#Data_format) - iCalendar
- [`indd`](https://en.wikipedia.org/wiki/Adobe_InDesign#File_format) - Adobe InDesign document
- [`it`](https://wiki.openmpt.org/Manual:_Module_formats#The_Impulse_Tracker_format_.28.it.29) - Audio module format: Impulse Tracker
- [`j2c`](https://en.wikipedia.org/wiki/JPEG_2000) - JPEG 2000
- [`jls`](https://en.wikipedia.org/wiki/Lossless_JPEG#JPEG-LS) - Lossless/near-lossless compression standard for continuous-tone images
- [`jp2`](https://en.wikipedia.org/wiki/JPEG_2000) - JPEG 2000
- [`jpg`](https://en.wikipedia.org/wiki/JPEG) - Joint Photographic Experts Group image
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2 changes: 2 additions & 0 deletions supported.js
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Expand Up @@ -81,6 +81,7 @@ export const extensions = [
'xlsx',
'3gp',
'3g2',
'j2c',
'jp2',
'jpm',
'jpx',
Expand Down Expand Up @@ -232,6 +233,7 @@ export const mimeTypes = [
'video/mp2t',
'application/x-blender',
'image/bpg',
'image/j2c',
'image/jp2',
'image/jpx',
'image/jpm',
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3 changes: 3 additions & 0 deletions test.js
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Expand Up @@ -243,6 +243,9 @@ const names = {
dwg: [
'fixture-line-weights',
],
j2c: [
'fixture',
],
cpio: [
'fixture-bin',
'fixture-ascii',
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