Function WithEncoderPadding

zstd/encoder_options.go:142–157

WithEncoderPadding will add padding to all output so the size will be a multiple of n. This can be used to obfuscate the exact output size or make blocks of a certain size. The contents will be a skippable frame, so it will be invisible by the decoder. n must be > 0 and <= 1GB, 1<<30 bytes. The padd

(n int)

// If `EncodeAll` is used with data already in the destination, the total size will be multiple of this.
// Can be changed with ResetWithOptions.
func WithEncoderPadding(n int) EOption {
	return func(o *encoderOptions) error {
		if n <= 0 {
			return fmt.Errorf("padding must be at least 1")
		}
		// No need to waste our time.
		if n == 1 {
			n = 0
		}
		if n > 1<<30 {
			return fmt.Errorf("padding must less than 1GB (1<<30 bytes) ")
		}
		o.pad = n
		return nil
	}
}

// EncoderLevel predefines encoder compression levels.
// Only use the constants made available, since the actual mapping