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snapshot: add imageOp util function

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This commit is contained in:
Koushik Dutta
2023-11-26 18:53:44 -08:00
parent 15916d83b8
commit e8e5f9b33e
1 changed files with 28 additions and 6 deletions
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34
plugins/snapshot/src/parse-dims.ts
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@@ -1,8 +1,8 @@
import sdk, { FFmpegInput } from '@scrypted/sdk';
import type { MIMETypeParameters } from 'whatwg-mimetype';
import { loadSharp, loadVipsImage } from './image-reader';
import { FFmpegImageFilterOptions, ffmpegFilterImage, ffmpegFilterImageBuffer } from './ffmpeg-image-filter';
import sdk, { FFmpegInput, RecordingStreamThumbnailOptions } from '@scrypted/sdk';
import url from 'url';
import type { MIMETypeParameters } from 'whatwg-mimetype';
import { FFmpegImageFilterOptions, ffmpegFilterImage, ffmpegFilterImageBuffer } from './ffmpeg-image-filter';
import { loadSharp, loadVipsImage } from './image-reader';
export type DimDict<T extends string> = {
[key in T]: string;
@@ -49,10 +49,32 @@ export function parseImageOp(parameters: MIMETypeParameters | URLSearchParams):
};
}
export function toImageOp(options: RecordingStreamThumbnailOptions) {
const ret: ImageOp = {};
const { resize, crop } = options || {};
if (resize) {
ret.resize = {
width: resize.width,
height: resize.height,
fractional: resize.percent,
};
}
if (crop) {
ret.crop = {
left: crop.left,
top: crop.top,
right: crop.left + crop.width,
bottom: crop.top + crop.height,
fractional: crop.percent,
}
}
return ret;
}
export async function processImageOp(input: string | FFmpegInput | Buffer, op: ImageOp, time: number, sourceId: string, debugConsole: Console): Promise<Buffer> {
const { crop, resize } = op;
const { width, height, fractional } = resize;
const { left, top, right, bottom, fractional: cropFractional } = crop;
const { width, height, fractional } = resize || {};
const { left, top, right, bottom, fractional: cropFractional } = crop || {};
const filenameOrBuffer = typeof input === 'string' || Buffer.isBuffer(input) ? input : input.url?.startsWith('file:') && url.fileURLToPath(input.url);