Function getWebPDimensions

yvlu/yvlu.ts:219–272

(imageBuffer: any)

  const mimeType = message.media.document?.mimeType;
  const isTgsSticker = isSticker && mimeType === "application/x-tgsticker";
  const isGifOrMp4 = mimeType === "video/mp4" || mimeType === "image/gif";

  const buffer = await downloadMediaBuffer(client, message);
  if (!Buffer.isBuffer(buffer)) return undefined;

  let finalBuffer = buffer;
  let finalMime = mimeType;

  // Convert TGS to WebM
  if (isTgsSticker || isTgsFormat(buffer)) {
    try {
      const depCheck = await checkTgsDependencies();
      if (!depCheck.ok) console.error(`[yvlu] ${depCheck.message}`);
      else {
        console.log(`[yvlu] 检测到 TGS 贴纸，开始转换为 WebM...`);
        finalBuffer = await convertTgsToWebm(buffer);
        finalMime = "video/webm";
        console.log(`[yvlu] TGS -> WebM 转换成功，大小: ${finalBuffer.length}`);
      }
    } catch (convertError) {
      console.error(`[yvlu] TGS 转换失败:`, convertError);
    }
  } else if (isGifOrMp4 || isMp4Format(buffer)) {
    try {
      console.log(`[yvlu] 检测到 GIF/MP4，开始转换为 WebM...`);
      finalBuffer = await convertMp4ToWebm(buffer);
      finalMime = "video/webm";
      console.log(`[yvlu] MP4 -> WebM 转换成功，大小: ${finalBuffer.length}`);
    } catch (convertError) {
      console.error(`[yvlu] MP4 转换失败:`, convertError);
    }
  }

  const mime = finalMime || (mediaTypeForQuote === "sticker" ? "image/webp" : "image/jpeg");
  console.log(`媒体下载: mimeType=${mimeType}, isTgs=${isTgsSticker}, isGif=${isGifOrMp4}, size=${finalBuffer.length}`);
  return { buffer: finalBuffer, mime };
}

async function getPeerEntity(client: any, peer: any): Promise<any | undefined> {
  if (!client || !peer) return undefined;
  const key = JSON.stringify(peer, (_, v) => typeof v === "bigint" ? v.toString() : v);
  try {
    return await withTimeout(client.getEntity(peer), QUOTE_RPC_TIMEOUT_MS, "getPeerEntity.getEntity");
  } catch (_) {
    try {
      return await withTimeout(client.getInputEntity(peer), QUOTE_RPC_TIMEOUT_MS, "getPeerEntity.getInputEntity");
    } catch (_) {
      return undefined;
    }
  }
}

async function ensureFullEntity(client: any, entity: any): Promise<any> {
  if (!entity || !client) return entity;
  // If entity has an id but no emojiStatus at all, it may be incomplete
  if (entity.id && entity.emojiStatus === undefined && entity.emoji_status === undefined) {