void gen_qr_code(const char* str)
{
uint8_t tempdata[33*33];
uint8_t w =EncodeData(3, 0, str, 32, &tempdata[0]);
uint16_t size=((w*w)/8)+(((w*w)%8)?1:0);
uint16_t n;
uint16_t idx = 0;
uint16_t bit_count = 0;
for(n=0;n<size;n++)
{
int b=0;
for(b=7;b>=0;b--)
{
if (((n+1)*8)-b>w*w){break;}
if((tempdata[n] & (1 << b)) != 0)
{
code[idx] = 0x00;
idx++;
}
else
{
code[idx] = 0xFF;
idx++;
}
bit_count++;
}
}
}
int main(int argc, char *argv[])
{
if (argc<3) {
printf("qrencode <input file> <output file> [QR Code level] [QR Code version]\n");
printf("level and version default to 3 and 0\n");
return 1;
}
int level=3;
if(argc>3) {
level = atoi(argv[3]);
}
int version=0;
if(argc>4) {
version = atoi(argv[4]);
}
// Read in the input data from file, terminate with 0.
FILE *inputfile = fopen(argv[1],"r");
char inputdata[10000];
int n;
for(n=0;(!feof(inputfile)) && (n < 10000);n++) {
int c = getc(inputfile);
inputdata[n] = c;
inputdata[n+1]=0;
}
// **** This calls the library and encodes the data
// *** length is taken from NULL termination, however can also be passed by parameter.
BYTE QR_m_data[3917]; //max possible bits resolution 177*177/8+1
int QR_width=EncodeData(3,version,inputdata,0,QR_m_data);
// Write the data to the output file
FILE *f=fopen(argv[2],"w");
int size=((QR_width*QR_width)/8)+(((QR_width*QR_width)%8)?1:0);
printf("\nwriting file %i bytes size \n",size);
fwrite(QR_m_data,size,1,f);
fclose(f);
// This code dumps the QR code to the screen as ASCII.
printf("QR Code width: %u\n",QR_width);
int bit_count=0;
for(n=0;n<size;n++) {
int b=0;
for(b=7;b>=0;b--) {
if((bit_count%QR_width) == 0) printf("\n");
if((QR_m_data[n] & (1 << b)) != 0) { printf("1"); }
else { printf("0"); }
bit_count++;
}
}
return 0;
}
int main(int argc, char *argv[])
{
if (argc<2) return 1;
BYTE QR_m_data[3917]; //max possible bits resolution 177*177/8+1
FILE *f;
BYTE *p;
p=QR_m_data;
int QR_width=EncodeData(3,0,argv[1],0,p);
f=fopen("file.tmp","w");
int size=((QR_width*QR_width)/8)+(((QR_width*QR_width)%8)?1:0);
printf("\nwriting file %i bytes size \n",size);
fwrite(QR_m_data,size,1,f);
fclose(f);
return 0;
}
//Функция помехоустойчивого кодирования радиосообщения
//NO: Функция изменяет содержимое исходного сообщения, изменяя длину и кодируя все данные сообщения
//кроме первых 2х байт заголовка
//Кодер оставляет нетронутыми первые 2 байта (длина и адрес), делит пакет на 18-байтные кадры
//и каждый кадр преобразует в 24.5 байтный. Результат снова укладывается в RadioPack
//Для стандартного 86-байтного пакета (c 5-байтным заголовком) результат применения кодера -
//125-байтный пакет (24.5*5+2+выравнивание 0.5)
void EncodeRadioMsg(RadioMessage* RadioPack)
{
#ifdef DEBUG_USE_TL_LINES
TL3_HIGH();
#endif
uint8_t arEncodedRadioPack[RADIOPACK_MAX_SIZE];
memset(arEncodedRadioPack,0,RADIOPACK_MAX_SIZE);
uint8_t sizeOfEncodedRadioPack;
const uint8_t sizeNoFECData = 2;
memcpy(arEncodedRadioPack,RadioPack->Data,sizeNoFECData);
EncodeData(RadioPack->Data+sizeNoFECData, RadioPack->Size-sizeNoFECData, arEncodedRadioPack+sizeNoFECData, sizeOfEncodedRadioPack);
#ifdef DEBUG_TEST_ENCDEC_RADIODATA_TRELLIS
uint8_t arDecodedRadioPack[RADIOPACK_MAX_SIZE];
memset(arDecodedRadioPack,0,RADIOPACK_MAX_SIZE);
uint8_t sizeOfDecodedRadioPack;
int16_t numDetectedErrors = 0;
DecodeData(arEncodedRadioPack+sizeNoFECData, sizeOfEncodedRadioPack,
arDecodedRadioPack, sizeOfDecodedRadioPack, numDetectedErrors);
#endif
sizeOfEncodedRadioPack+=sizeNoFECData;
#ifdef DEBUG_CC1120_VARIABLE_PACKET_LENGTH
//Корректируем длину пакета, которая хранится в первом (незакодированном!) байте радиосообщения
arEncodedRadioPack[0] = sizeOfEncodedRadioPack - 1;
#endif
RadioPack->setMsg(arEncodedRadioPack,sizeOfEncodedRadioPack);
#ifdef DEBUG_USE_TL_LINES
TL3_LOW();
//С помощью TL-линии определено время кодирования радиопакета
//Оно составляет 2-3 мс без применения оптимизации
#endif
}
static void UpdateFrame(CP_INSTANCE *cpi){
double CorrectionFactor;
/* Reset the DC predictors. */
cpi->pb.LastIntraDC = 0;
cpi->pb.InvLastIntraDC = 0;
cpi->pb.LastInterDC = 0;
cpi->pb.InvLastInterDC = 0;
/* Initialise bit packing mechanism. */
#ifndef LIBOGG2
oggpackB_reset(cpi->oggbuffer);
#else
oggpackB_writeinit(cpi->oggbuffer, cpi->oggbufferstate);
#endif
/* mark as video frame */
oggpackB_write(cpi->oggbuffer,0,1);
/* Write out the frame header information including size. */
WriteFrameHeader(cpi);
/* Copy back any extra frags that are to be updated by the codec
as part of the background cleanup task */
CopyBackExtraFrags(cpi);
/* Encode the data. */
EncodeData(cpi);
/* Adjust drop frame trigger. */
if ( GetFrameType(&cpi->pb) != KEY_FRAME ) {
/* Apply decay factor then add in the last frame size. */
cpi->DropFrameTriggerBytes =
((cpi->DropFrameTriggerBytes * (DF_CANDIDATE_WINDOW-1)) /
DF_CANDIDATE_WINDOW) + oggpackB_bytes(cpi->oggbuffer);
}else{
/* Increase cpi->DropFrameTriggerBytes a little. Just after a key
frame may actually be a good time to drop a frame. */
cpi->DropFrameTriggerBytes =
(cpi->DropFrameTriggerBytes * DF_CANDIDATE_WINDOW) /
(DF_CANDIDATE_WINDOW-1);
}
/* Test for overshoot which may require a dropped frame next time
around. If we are already in a drop frame condition but the
previous frame was not dropped then the threshold for continuing
to allow dropped frames is reduced. */
if ( cpi->DropFrameCandidate ) {
if ( cpi->DropFrameTriggerBytes >
(cpi->frame_target_rate * (DF_CANDIDATE_WINDOW+1)) )
cpi->DropFrameCandidate = 1;
else
cpi->DropFrameCandidate = 0;
} else {
if ( cpi->DropFrameTriggerBytes >
(cpi->frame_target_rate * ((DF_CANDIDATE_WINDOW*2)-2)) )
cpi->DropFrameCandidate = 1;
else
cpi->DropFrameCandidate = 0;
}
/* Update the BpbCorrectionFactor variable according to whether or
not we were close enough with our selection of DCT quantiser. */
if ( GetFrameType(&cpi->pb) != KEY_FRAME ) {
/* Work out a size correction factor. */
CorrectionFactor = (double)oggpackB_bytes(cpi->oggbuffer) /
(double)cpi->ThisFrameTargetBytes;
if ( (CorrectionFactor > 1.05) &&
(cpi->pb.ThisFrameQualityValue <
cpi->pb.QThreshTable[cpi->Configuration.ActiveMaxQ]) ) {
CorrectionFactor = 1.0 + ((CorrectionFactor - 1.0)/2);
if ( CorrectionFactor > 1.5 )
cpi->BpbCorrectionFactor *= 1.5;
else
cpi->BpbCorrectionFactor *= CorrectionFactor;
/* Keep BpbCorrectionFactor within limits */
if ( cpi->BpbCorrectionFactor > MAX_BPB_FACTOR )
cpi->BpbCorrectionFactor = MAX_BPB_FACTOR;
} else if ( (CorrectionFactor < 0.95) &&
(cpi->pb.ThisFrameQualityValue > VERY_BEST_Q) ){
CorrectionFactor = 1.0 - ((1.0 - CorrectionFactor)/2);
if ( CorrectionFactor < 0.75 )
cpi->BpbCorrectionFactor *= 0.75;
else
cpi->BpbCorrectionFactor *= CorrectionFactor;
/* Keep BpbCorrectionFactor within limits */
if ( cpi->BpbCorrectionFactor < MIN_BPB_FACTOR )
cpi->BpbCorrectionFactor = MIN_BPB_FACTOR;
}
}
/* Adjust carry over and or key frame context. */
if ( GetFrameType(&cpi->pb) == KEY_FRAME ) {
/* Adjust the key frame context unless the key frame was very small */
AdjustKeyFrameContext(cpi);
} else {
/* Update the frame carry over */
cpi->CarryOver += ((ogg_int32_t)cpi->frame_target_rate -
(ogg_int32_t)oggpackB_bytes(cpi->oggbuffer));
}
cpi->TotalByteCount += oggpackB_bytes(cpi->oggbuffer);
}
void qr_layer_set_data(QRLayer* layer, char* data) {
QRData* qr_data = (QRData*) layer_get_data(layer);
qr_data->width = EncodeData(QR_LEVEL_L, 0, data, 0, qr_data->str);
layer_mark_dirty(qr_layer_get_layer(layer));
}
