long IRrecvSF::decodeRC5(decode_resultsSF *results) {
if (irparamsSF.rawlen < MIN_RC5_SAMPLES + 2) {
return ERR;
}
int offset = 1; // Skip gap space
long data = 0;
int used = 0;
// Get start bits
if (getRClevel(results, &offset, &used, RC5_T1) != MARK) return ERR;
if (getRClevel(results, &offset, &used, RC5_T1) != SPACE) return ERR;
if (getRClevel(results, &offset, &used, RC5_T1) != MARK) return ERR;
int nbits;
for (nbits = 0; offset < irparamsSF.rawlen; nbits++) {
int levelA = getRClevel(results, &offset, &used, RC5_T1);
int levelB = getRClevel(results, &offset, &used, RC5_T1);
if (levelA == SPACE && levelB == MARK) {
// 1 bit
data = (data << 1) | 1;
}
else if (levelA == MARK && levelB == SPACE) {
// zero bit
data <<= 1;
}
else {
return ERR;
}
}
// Success
results->bits = nbits;
results->value = data;
results->decode_type = RC5;
return DECODED;
}
bool IRdecodeRC5::decode(void) {
ATTEMPT_MESSAGE(F("RC5"));
if (rawlen < MIN_RC5_SAMPLES + 2) return RAW_COUNT_ERROR;
int offset = 1; // Skip gap space
long data = 0;
int used = 0;
// Get start bits
if (getRClevel(&offset, &used, RC5_T1) != MARK) return HEADER_MARK_ERROR;
//Note: Original IRremote library incorrectly assumed second bit was always a "1"
//bit patterns from this decoder are not backward compatible with patterns produced
//by original library. Ucomment the following two lines to maintain backward compatibility.
//if (getRClevel(&offset, &used, RC5_T1) != SPACE) return HEADER_SPACE_ERROR;
//if (getRClevel(&offset, &used, RC5_T1) != MARK) return HEADER_MARK_ERROR;
int nbits;
for (nbits = 0; offset < rawlen; nbits++) {
RCLevel levelA = getRClevel(&offset, &used, RC5_T1);
RCLevel levelB = getRClevel(&offset, &used, RC5_T1);
if (levelA == SPACE && levelB == MARK) {
// 1 bit
data = (data << 1) | 1;
}
else if (levelA == MARK && levelB == SPACE) {
// zero bit
data <<= 1;
}
else return DATA_MARK_ERROR;
}
// Success
bits = 13;
value = data;
decode_type = RC5;
return true;
}
bool IRrecv::decodeRC5 (decode_results *results)
{
int nbits;
long data = 0;
int used = 0;
int offset = 1; // Skip gap space
if (irparams.rawlen < MIN_RC5_SAMPLES + 2) return false ;
// Get start bits
if (getRClevel(results, &offset, &used, RC5_T1) != MARK) return false ;
if (getRClevel(results, &offset, &used, RC5_T1) != SPACE) return false ;
if (getRClevel(results, &offset, &used, RC5_T1) != MARK) return false ;
for (nbits = 0; offset < irparams.rawlen; nbits++) {
int levelA = getRClevel(results, &offset, &used, RC5_T1);
int levelB = getRClevel(results, &offset, &used, RC5_T1);
if ((levelA == SPACE) && (levelB == MARK )) data = (data << 1) | 1 ;
else if ((levelA == MARK ) && (levelB == SPACE)) data = (data << 1) | 0 ;
else return false ;
}
// Success
results->bits = nbits;
results->value = data;
results->decode_type = RC5;
return true;
}
bool IRRemote::decodeRC5(int rawlen)
{
if (rawlen < MIN_RC5_SAMPLES + 2)
{
return false;
}
int offset = 1; // Skip gap space
long data = 0;
int used = 0;
// Get start bits
if (getRClevel(&offset, &used, RC5_T1, rawlen) != MARK)
return false;
else if (getRClevel(&offset, &used, RC5_T1, rawlen) != SPACE)
return false;
else if (getRClevel(&offset, &used, RC5_T1, rawlen) != MARK)
return false;
int nbits;
for (nbits = 0; offset < rawlen; nbits++)
{
int levelA = getRClevel(&offset, &used, RC5_T1, rawlen);
int levelB = getRClevel(&offset, &used, RC5_T1, rawlen);
if (levelA == SPACE && levelB == MARK)
{
// 1 bit
data = (data << 1) | 1;
}
else if (levelA == MARK && levelB == SPACE)
{
// zero bit
data <<= 1;
}
else
{
return false;
}
}
// Success
_bits = nbits;
_value = data;
_decode_type = RC5;
return true;
}
long IRrecvSF::decodeRC6(decode_resultsSF *results) {
if (results->rawlen < MIN_RC6_SAMPLES) {
return ERR;
}
int offset = 1; // Skip first space
// Initial mark
if (!MATCH_MARK(results->rawbuf[offset], RC6_HDR_MARK)) {
return ERR;
}
offset++;
if (!MATCH_SPACE(results->rawbuf[offset], RC6_HDR_SPACE)) {
return ERR;
}
offset++;
long data = 0;
int used = 0;
// Get start bit (1)
if (getRClevel(results, &offset, &used, RC6_T1) != MARK) return ERR;
if (getRClevel(results, &offset, &used, RC6_T1) != SPACE) return ERR;
int nbits;
for (nbits = 0; offset < results->rawlen; nbits++) {
int levelA, levelB; // Next two levels
levelA = getRClevel(results, &offset, &used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelA != getRClevel(results, &offset, &used, RC6_T1)) return ERR;
}
levelB = getRClevel(results, &offset, &used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelB != getRClevel(results, &offset, &used, RC6_T1)) return ERR;
}
if (levelA == MARK && levelB == SPACE) { // reversed compared to RC5
// 1 bit
data = (data << 1) | 1;
}
else if (levelA == SPACE && levelB == MARK) {
// zero bit
data <<= 1;
}
else {
return ERR; // Error
}
}
// Success
results->bits = nbits;
results->value = data;
results->decode_type = RC6;
return DECODED;
}
bool IRdecodeRC6::decode(void) {
IRLIB_ATTEMPT_MESSAGE(F("RC6"));
if (rawlen < MIN_RC6_SAMPLES) return RAW_COUNT_ERROR;
// Initial mark
if (!IgnoreHeader) {
if (!MATCH(rawbuf[1], RC6_HDR_MARK)) return HEADER_MARK_ERROR(RC6_HDR_MARK);
}
if (!MATCH(rawbuf[2], RC6_HDR_SPACE)) return HEADER_SPACE_ERROR(RC6_HDR_SPACE);
offset=3;//Skip gap and header
data = 0;
used = 0;
// Get start bit (1)
if (getRClevel(&used, RC6_T1) != MARK) return DATA_MARK_ERROR(RC6_T1);
if (getRClevel(&used, RC6_T1) != SPACE) return DATA_SPACE_ERROR(RC6_T1);
for (nbits = 0; offset < rawlen; nbits++) {
RCLevel levelA, levelB; // Next two levels
levelA = getRClevel(&used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelA != getRClevel(&used, RC6_T1)) return TRAILER_BIT_ERROR(RC6_T1);
}
levelB = getRClevel(&used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelB != getRClevel(&used, RC6_T1)) return TRAILER_BIT_ERROR(RC6_T1);
}
if (levelA == MARK && levelB == SPACE) { // reversed compared to RC5
// 1 bit
data = (data << 1) | 1;
}
else if (levelA == SPACE && levelB == MARK) {
// zero bit
data <<= 1;
}
else {
return DATA_MARK_ERROR(RC6_T1);
}
}
// Success
bits = nbits;
value = data;
decode_type = RC6;
return true;
}
bool IRrecv::decodeRC6 (decode_results *results)
{
int nbits;
long data = 0;
int used = 0;
int offset = 1; // Skip first space
if (results->rawlen < MIN_RC6_SAMPLES) return false ;
// Initial mark
if (!MATCH_MARK(results->rawbuf[offset++], RC6_HDR_MARK)) return false ;
if (!MATCH_SPACE(results->rawbuf[offset++], RC6_HDR_SPACE)) return false ;
// Get start bit (1)
if (getRClevel(results, &offset, &used, RC6_T1) != MARK) return false ;
if (getRClevel(results, &offset, &used, RC6_T1) != SPACE) return false ;
for (nbits = 0; offset < results->rawlen; nbits++) {
int levelA, levelB; // Next two levels
levelA = getRClevel(results, &offset, &used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelA != getRClevel(results, &offset, &used, RC6_T1)) return false;
}
levelB = getRClevel(results, &offset, &used, RC6_T1);
if (nbits == 3) {
// T bit is double wide; make sure second half matches
if (levelB != getRClevel(results, &offset, &used, RC6_T1)) return false;
}
if ((levelA == MARK ) && (levelB == SPACE)) data = (data << 1) | 1 ; // inverted compared to RC5
else if ((levelA == SPACE) && (levelB == MARK )) data = (data << 1) | 0 ; // ...
else return false ; // Error
}
// Success
results->bits = nbits;
results->value = data;
results->decode_type = RC6;
return true;
}
