signal-desktop/ts/util/handleVideoAttachment.ts
2021-10-26 14:15:33 -05:00

43 lines
1.3 KiB
TypeScript

// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { blobToArrayBuffer } from 'blob-util';
import * as log from '../logging/log';
import { makeVideoScreenshot } from '../types/VisualAttachment';
import { IMAGE_PNG, stringToMIMEType } from '../types/MIME';
import type { InMemoryAttachmentDraftType } from '../types/Attachment';
import { fileToBytes } from './fileToBytes';
export async function handleVideoAttachment(
file: Readonly<File>
): Promise<InMemoryAttachmentDraftType> {
const objectUrl = URL.createObjectURL(file);
if (!objectUrl) {
throw new Error('Failed to create object url for video!');
}
try {
const screenshotContentType = IMAGE_PNG;
const screenshotBlob = await makeVideoScreenshot({
objectUrl,
contentType: screenshotContentType,
logger: log,
});
const screenshotData = await blobToArrayBuffer(screenshotBlob);
const data = await fileToBytes(file);
return {
contentType: stringToMIMEType(file.type),
data,
fileName: file.name,
path: file.name,
pending: false,
screenshotContentType,
screenshotData: new Uint8Array(screenshotData),
screenshotSize: screenshotData.byteLength,
size: data.byteLength,
};
} finally {
URL.revokeObjectURL(objectUrl);
}
}