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#ifndef ENCODER_H
#define ENCODER_H
#include <boost/cstdint.hpp>
#include <boost/function.hpp>
#include <boost/functional/factory.hpp>
#include <boost/functional/value_factory.hpp>
#include <boost/iostreams/concepts.hpp>
#include <boost/iostreams/operations.hpp>
#include <string>
class EncoderBase {
public:
virtual size_t encode(const uint8_t *input, size_t input_size, uint8_t *output, size_t output_size) = 0;
virtual size_t flush(uint8_t *output, size_t output_size) = 0;
};
class EncoderFilter : public boost::iostreams::multichar_input_filter {
private:
EncoderBase& encoder;
public:
EncoderFilter(EncoderBase& encoder_) : encoder(encoder_) {};
template<typename Source>
std::streamsize read(Source& src, char *s, std::streamsize n) {
char src_data[0x2000];
std::streamsize src_read = boost::iostreams::read(src, src_data, 0x2000);
if(src_read < 0)
src_read = 0;
return encoder.encode((const uint8_t*)src_data, src_read, (uint8_t*)s, n);
};
};
namespace encoder {
void init();
EncoderBase *get_encoder(const std::string& name);
};
#endif
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