Tcp -video client
-
Hi All,
New to Qt, started working well.
I am developing a video client. Server is already sending a data using opencv decodeimage so i got receving .jpg image with header info .
In the client side i did
@
_pSocketVideo = new QTcpSocket( this );_pSocketVideo->connectToHost(IpList[DeviceNumber],VIDEO_PORT); connect( _pSocketVideo, SIGNAL(readyRead()), SLOT(VideoDataRead()) );connect(this,SIGNAL(getFrame(QByteArray)),cameraViewMap[DeviceNumber],SLOT(packFrame(QByteArray)));
void MainWindow::VideoDataRead()
{VideoData =VideoData+_pSocketVideo->readAll(); if(firstread) { byte= MAKEDWORD(VideoData.at(0),VideoData.at(1),VideoData.at(2),VideoData.at(3)); std::cout << byte ; firstread=0; } if(byte == VideoData.size()) // here i get the required data in buffer. emit getFrame(VideoData);}
@
Here comes by problem. The received data
@
void CameraView::packFrame(QByteArray ReadData)
{unsigned char FrameBuffer[1024*20]; QByteArray CopyData;int i;
int size;
frameprocess.lock();
CopyData=ReadData;
size=CopyData.size();
iSync = MAKEDWORD(CopyData.at(0),CopyData.at(1),CopyData.at(2),CopyData.at(3));
iLength = MAKEDWORD(CopyData.at(4),CopyData.at(5),CopyData.at(6),CopyData.at(7));
iSize = MAKEDWORD(CopyData.at(8),CopyData.at(9),CopyData.at(10),CopyData.at(11));
iRows = MAKEDWORD(CopyData.at(12),CopyData.at(13),CopyData.at(14),CopyData.at(15));
iCols = MAKEDWORD(CopyData.at(16),CopyData.at(17),CopyData.at(18),CopyData.at(19));// all my datas go correct here matching with the server
memcpy(&FrameBuffer[0],&CopyData,size);/*
here i try to match the server data and client data i am going wrong...
FILE *fin=fopen("test.bin","wb");
fwrite(&FrameBuffer[20],sizeof(unsigned char),iSize,fin);
fclose(fin);
*/// ofcourse i dont have option of using QImage as its from opencv .jpg
cvMat *decode =cvCreateMat(iRows,iSize,CV_8UC1);
decode->data.ptr=&FrameBuffer[20];
frame = cvDecodeImage(decode,CV_LOAD_IMAGE_COLOR);
if(frame)
std::cout << "not a vaid frame ";
// here it goes wrong ?? I am not ware why . My bins dont match... pls help
}
@[Edited to add @ tags -- mlong]
