Function extractFirstFrame

ai/ai.ts:653–659

(buffer: Buffer)

const extractFirstFrame = async (buffer: Buffer): Promise<Buffer | null> => {
  try {
    return await sharp(buffer, { animated: true }).png().toBuffer();
  } catch {
    return null;
  }
};

const getDocumentThumb = (doc: Api.Document): Api.TypePhotoSize | undefined => {
  const thumbs = doc.thumbs || [];
  if (thumbs.length === 0) return undefined;