BitmapPtr CMUCamera::getImage(bool bWait)
{
if (bWait) {
unsigned rc = WaitForSingleObject(m_pCamera->GetFrameEvent(), INFINITE);
AVG_ASSERT(rc == WAIT_OBJECT_0);
} else {
unsigned rc = WaitForSingleObject(m_pCamera->GetFrameEvent(), 0);
if (rc == WAIT_TIMEOUT) {
// No frame yet
return BitmapPtr();
}
AVG_ASSERT(rc == WAIT_OBJECT_0);
}
int rc2 = m_pCamera->AcquireImageEx(FALSE, NULL);
if (rc2 != CAM_SUCCESS) {
throw Exception(AVG_ERR_CAMERA_NONFATAL,
"CMUCamera: Could not acquire image from camera. " +
CMUErrorToString(rc2));
}
unsigned long captureBufferLength;
unsigned char* pCaptureBuffer = m_pCamera->GetRawData(&captureBufferLength);
BitmapPtr pCamBmp(new Bitmap(getImgSize(), getCamPF(), pCaptureBuffer,
captureBufferLength / getImgSize().y, false, "TempCameraBmp"));
return convertCamFrameToDestPF(pCamBmp);
}
BitmapPtr FWCamera::getImage(bool bWait)
{
#ifdef AVG_ENABLE_1394_2
bool bGotFrame = false;
unsigned char * pCaptureBuffer = 0;
dc1394video_frame_t * pFrame;
dc1394error_t err;
if (bWait) {
err = dc1394_capture_dequeue(m_pCamera, DC1394_CAPTURE_POLICY_WAIT, &pFrame);
} else {
err = dc1394_capture_dequeue(m_pCamera, DC1394_CAPTURE_POLICY_POLL, &pFrame);
}
if (err == DC1394_SUCCESS && pFrame) {
bGotFrame = true;
pCaptureBuffer = pFrame->image;
}
if (bGotFrame) {
int lineLen;
if (getCamPF() == YCbCr411) {
lineLen = getImgSize().x*1.5;
} else {
lineLen = getImgSize().x*getBytesPerPixel(getCamPF());
}
BitmapPtr pCamBmp(new Bitmap(getImgSize(), getCamPF(), pCaptureBuffer, lineLen,
false, "TempCameraBmp"));
BitmapPtr pDestBmp = convertCamFrameToDestPF(pCamBmp);
// cerr << "CamBmp: " << pCamBmp->getPixelFormat() << ", DestBmp: "
// << pDestBmp->getPixelFormat() << endl;
dc1394_capture_enqueue(m_pCamera, pFrame);
return pDestBmp;
} else {
return BitmapPtr();
}
#else
return BitmapPtr();
#endif
}
void FWCamera::startCapture()
{
#ifdef AVG_ENABLE_1394_2
int err = dc1394_video_set_transmission(m_pCamera, DC1394_ON);
AVG_ASSERT(err == DC1394_SUCCESS);
dc1394switch_t status = DC1394_OFF;
int i = 0;
while (status == DC1394_OFF && i++ < 5) {
usleep(50000);
err = dc1394_video_get_transmission(m_pCamera, &status);
AVG_ASSERT(err == DC1394_SUCCESS);
}
if (i == 5) {
AVG_ASSERT(false);
}
// Default to turning off any camera sharpness manipulation.
setFeature(CAM_FEATURE_SHARPNESS, 0);
// Turn off possible auto exposure.
dc1394_feature_set_mode(m_pCamera, DC1394_FEATURE_EXPOSURE,
DC1394_FEATURE_MODE_MANUAL);
dc1394_feature_set_power(m_pCamera, DC1394_FEATURE_EXPOSURE, DC1394_OFF);
AVG_TRACE(Logger::category::CONFIG, Logger::severity::INFO, "Firewire camera opened.");
for (FeatureMap::iterator it=m_Features.begin(); it != m_Features.end(); it++) {
setFeature(it->first, it->second, true);
}
setWhitebalance(m_WhitebalanceU, m_WhitebalanceV, true);
if (getCamPF() == BAYER8) {
if (strcmp(m_pCamera->model, "DFx 31BF03") == 0) {
AVG_TRACE(Logger::category::CONFIG, Logger::severity::INFO,
"Applying bayer pattern fixup for IS DFx31BF03 camera");
setCamPF(BAYER8_GRBG);
} else if (strcmp(m_pCamera->vendor, "Point Grey Research") == 0) {
AVG_TRACE(Logger::category::CONFIG, Logger::severity::INFO,
"Applying bayer pattern fixup for PointGrey cameras");
enablePtGreyBayer();
}
}
#endif
}
CMUCamera::CMUCamera(long long guid, bool bFW800, IntPoint size,
PixelFormat camPF, PixelFormat destPF, float frameRate)
: Camera(camPF, destPF, size, frameRate),
m_WhitebalanceU(-1),
m_WhitebalanceV(-1),
m_pCamera(0)
{
m_pCamera = new C1394Camera();
int err;
unsigned long videoFormat, videoMode;
getVideoFormatAndMode(getImgSize(), getCamPF(), &videoFormat, &videoMode);
// Find and open camera
if (m_pCamera->RefreshCameraList() <= 0) {
throw Exception(AVG_ERR_CAMERA_NONFATAL, "No Firewire cameras found");
}
int i = getCamIndex(guid);
err = m_pCamera->SelectCamera(i);
err = m_pCamera->InitCamera(TRUE);
AVG_ASSERT(err == CAM_SUCCESS);
if (bFW800) {
m_pCamera->Set1394b(true);
}
// Setup video format and rate
err = m_pCamera->SetVideoFormat(videoFormat);
checkCMUError(err, AVG_ERR_CAMERA_NONFATAL,
string("CMUCamera: Error setting video format ") + toString(videoFormat) +
", mode: " + toString(videoMode));
err = m_pCamera->SetVideoMode(videoMode);
checkCMUError(err, AVG_ERR_CAMERA_NONFATAL,
string("CMUCamera: Error setting video mode ") + toString(videoMode) +
", format: " + toString(videoFormat));
err = m_pCamera->SetVideoFrameRate(getFrameRateConst(getFrameRate()));
checkCMUError(err, AVG_ERR_CAMERA_NONFATAL, "Error setting frame rate");
// Start capturing images
err = m_pCamera->StartImageAcquisition();
if (err != CAM_SUCCESS) {
throw Exception(AVG_ERR_CAMERA_NONFATAL,
"CMUCamera: Could not start image acquisition. " +
CMUErrorToString(err));
}
// Set camera features
for (FeatureMap::iterator it=m_Features.begin(); it != m_Features.end(); it++) {
setFeature(it->first, it->second, true);
}
setWhitebalance(m_WhitebalanceU, m_WhitebalanceV, true);
if (camPF == BAYER8) {
char sModel[256], sVendor[256];
m_pCamera->GetCameraName(sModel, 256);
m_pCamera->GetCameraVendor(sVendor, 256);
if (strcmp(sModel, "DFx 31BF03") == 0) {
AVG_TRACE(Logger::CONFIG, "Applying bayer pattern fixup for IS DFx31BF03 camera");
setCamPF(BAYER8_GRBG);
} else if (strcmp(sVendor, "Point Grey Research") == 0) {
AVG_TRACE(Logger::CONFIG, "Applying bayer pattern fixup for PointGrey cameras");
enablePtGreyBayer();
}
}
}
