Method decodeRC5

src/ir_RC5_RC6.hpp:364–388

* Try to decode data as RC5 protocol * mark->space => 0 - Inverse of RC6! * space->mark => 1 * _ _ _ _ _ _ _ _ _ _ _ _ _ * Clock _____| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| | * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ Significant clock edge /sample point for bit value *

 *                              S   0   T   Address
 */
bool IRrecv::decodeRC5() {
    uint8_t tBitIndex;
    uint32_t tDecodedRawData = 0;

    // Set Biphase decoding start values
    initBiphaselevel(1, RC5_UNIT); // Skip gap space

    // Check we have the right amount of data (14 to 26). The +1 is for initial gap. +2 for initial gap and mark of last bit which is a 1
    if (decodedIRData.rawlen < (RC5_BITS + 1)  /* 14 */ ||
#if defined(DECODE_MARANTZ)
            ((MARANTZ_BITS * 2) + 2) /* 40, the pause is just extended */ < decodedIRData.rawlen
#else
            ((RC5_BITS * 2) + 2) /* 28 */ < decodedIRData.rawlen
#endif
            ) {
        // no debug output, since this check is mainly to determine the received protocol
        DEBUG_PRINT(F("RC5: Data length="));
        DEBUG_PRINT(decodedIRData.rawlen);
#if defined(DECODE_MARANTZ)
        DEBUG_PRINTLN(F(" is not between 14 and 40"));
#else
        DEBUG_PRINTLN(F(" is not between 14 and 28"));
#endif
        return false;
    }

    // Check length of first mark / header
    if (irparams.rawbuf[1] > (((2 * RC5_UNIT) + (RC5_UNIT / 2)) / MICROS_PER_TICK)) {