Function detectImageFormatFromBase64

src/utils/imageResizer.ts:819–829

(
  base64Data: string,
)

 * @returns Media type string (e.g., 'image/png', 'image/jpeg') or 'image/png' as default
 */
export function detectImageFormatFromBase64(
  base64Data: string,
): ImageMediaType {
  try {
    const buffer = Buffer.from(base64Data, 'base64')
    return detectImageFormatFromBuffer(buffer)
  } catch {
    // Default to PNG on any error
    return 'image/png'
  }
}

/**
 * Creates a text description of image metadata including dimensions and source path.