Base64OutputStream.h

/****
 * Sming Framework Project - Open Source framework for high efficiency native ESP8266 development.
 * Created 2015 by Skurydin Alexey
 * http://github.com/SmingHub/Sming
 * All files of the Sming Core are provided under the LGPL v3 license.
 *
 * Base64OutputStream.h
 *
 * @author Slavey Karadzhov <slaff@attachix.com>
 *
 ****/

#ifndef _SMING_CORE_DATA_STREAM_BASE64_OUTPUT_STREAM_H_
#define _SMING_CORE_DATA_STREAM_BASE64_OUTPUT_STREAM_H_

#include "../StreamTransformer.h"
#include "../Services/libb64/cencode.h"

class Base64OutputStream : public StreamTransformer
{
public:
    Base64OutputStream(IDataSourceStream* stream, size_t resultSize = 500);

    size_t transform(const uint8_t* source, size_t sourceLength, uint8_t* target, size_t targetLength) override;

    void saveState() override;

    void restoreState() override;

private:
    base64_encodestate state;
    base64_encodestate lastState;
};

#endif /* _SMING_CORE_DATA_STREAM_BASE64_OUTPUT_STREAM_H_ */