base64 Decoder API
src/btstack_base64_decoder.h
#define BTSTACK_BASE64_DECODER_MORE -1
#define BTSTACK_BASE64_DECODER_COMPLETE -2
#define BTSTACK_BASE64_DECODER_INVALID -3
#define BTSTACK_BASE64_DECODER_FULL -4
/**
* @brief Initialize base64 decoder
* @param context
*/
void btstack_base64_decoder_init(btstack_base64_decoder_t * context);
/**
* @brief Decode single byte
* @brief context
* @return value, or BTSTACK_BASE64_DECODER_MORE, BTSTACK_BASE64_DECODER_COMPLETE, BTSTACK_BASE64_DECODER_INVALID
*/
int btstack_base64_decoder_process_byte(btstack_base64_decoder_t * context, uint8_t c);
/**
* @brief Decode block
* @brief input_data base64 encoded message
* @brief input_size
* @breif output_buffer
* @brief output_max_size
* @return output_size or BTSTACK_BASE64_DECODER_INVALID, BTSTACK_BASE64_DECODER_FULL
*/
int btstack_base64_decoder_process_block(const uint8_t * input_data, uint32_t input_size, uint8_t * output_buffer, uint32_t output_max_size);