kopia lustrzana https://github.com/cloudflare/wildebeest
94 wiersze
2.4 KiB
TypeScript
94 wiersze
2.4 KiB
TypeScript
import type { MediaAttachment } from 'wildebeest/backend/src/types/media'
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import type { Document } from 'wildebeest/backend/src/activitypub/objects'
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import { IMAGE, type Image } from 'wildebeest/backend/src/activitypub/objects/image'
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import type { APObject } from 'wildebeest/backend/src/activitypub/objects'
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import { mastodonIdSymbol } from 'wildebeest/backend/src/activitypub/objects'
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export function fromObject(obj: APObject): MediaAttachment {
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if (obj.type === IMAGE) {
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return fromObjectImage(obj as Image)
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} else if (obj.type === 'Video') {
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return fromObjectVideo(obj)
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} else if (obj.type === 'Document') {
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return fromObjectDocument(obj as Document)
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} else {
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throw new Error(`unsupported media type ${obj.type}: ${JSON.stringify(obj)}`)
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}
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}
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const imageTypes = ['image/jpeg', 'image/png', 'image/gif', 'image/webp']
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export function fromObjectDocument(obj: Document): MediaAttachment {
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if (imageTypes.includes(obj.mediaType as string)) {
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return fromObjectImage(obj)
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} else if (obj.mediaType === 'video/mp4') {
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return fromObjectVideo(obj)
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} else {
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throw new Error(`unsupported media Document type: ${JSON.stringify(obj)}`)
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}
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}
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function fromObjectImage(obj: Image): MediaAttachment {
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return {
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url: new URL(obj.url),
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id: obj[mastodonIdSymbol] || obj.url.toString(),
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preview_url: new URL(obj.url),
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type: 'image',
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meta: {
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original: {
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width: 640,
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height: 480,
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size: '640x480',
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aspect: 1.3333333333333333,
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},
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small: {
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width: 461,
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height: 346,
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size: '461x346',
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aspect: 1.3323699421965318,
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},
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focus: {
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x: -0.27,
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y: 0.51,
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},
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},
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description: obj.description || '',
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blurhash: 'UFBWY:8_0Jxv4mx]t8t64.%M-:IUWGWAt6M}',
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}
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}
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function fromObjectVideo(obj: APObject): MediaAttachment {
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return {
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url: new URL(obj.url),
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preview_url: new URL(obj.url),
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id: obj.url.toString(),
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type: 'video',
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meta: {
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length: '0:01:28.65',
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duration: 88.65,
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fps: 24,
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size: '1280x720',
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width: 1280,
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height: 720,
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aspect: 1.7777777777777777,
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audio_encode: 'aac (LC) (mp4a / 0x6134706D)',
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audio_bitrate: '44100 Hz',
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audio_channels: 'stereo',
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original: {
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width: 1280,
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height: 720,
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frame_rate: '6159375/249269',
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duration: 88.654,
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bitrate: 862056,
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},
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small: {
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width: 400,
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height: 225,
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size: '400x225',
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aspect: 1.7777777777777777,
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},
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},
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description: 'test media description',
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blurhash: 'UFBWY:8_0Jxv4mx]t8t64.%M-:IUWGWAt6M}',
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}
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}
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