Function compressImageBufferWithTokenLimit

src/utils/imageResizer.ts:583–594

(
  imageBuffer: Buffer,
  maxTokens: number,
  originalMediaType?: string,
)

 * Converts tokens to bytes using the formula: maxBytes = (maxTokens / 0.125) * 0.75
 */
export async function compressImageBufferWithTokenLimit(
  imageBuffer: Buffer,
  maxTokens: number,
  originalMediaType?: string,
): Promise<CompressedImageResult> {
  // Convert token limit to byte limit
  // base64 uses about 4/3 the original size, so we reverse this
  const maxBase64Chars = Math.floor(maxTokens / 0.125)
  const maxBytes = Math.floor(maxBase64Chars * 0.75)

  return compressImageBuffer(imageBuffer, maxBytes, originalMediaType)
}

/**
 * Compresses an image block to fit within a maximum byte size.