// cvSetCaptureProperty callback function implementation
static int
icvSetPropertyCAM_DC1394( CvCaptureCAM_DC1394* capture, int property_id, double value ){
_V_MW_ fprintf(stderr,"icvSetPropertyCAM_DC1394\n");
int index=-1;
switch ( property_id ) {
case CV_CAP_PROP_CONVERT_RGB:
return icvSetConvertRGB( capture, value != 0 );
case CV_CAP_PROP_MODE:
return icvSetModeCAM_DC1394( capture, (int) value );
case CV_CAP_PROP_FPS:
return icvSetFrameRateCAM_DC1394( capture, value );
case CV_CAP_PROP_BRIGHTNESS:
index = FEATURE_BRIGHTNESS;
break;
case CV_CAP_PROP_CONTRAST:
index = FEATURE_GAMMA;
break;
case CV_CAP_PROP_SATURATION:
index = FEATURE_SATURATION;
break;
case CV_CAP_PROP_HUE:
index = FEATURE_HUE;
break;
case CV_CAP_PROP_GAIN:
index = FEATURE_GAIN;
break;
default:
index = property_id; // did they pass in a LIBDC1394 feature flag?
break;
}
if(value == -1) { // special case for setting AUTO
if(index>=FEATURE_MIN && index<=FEATURE_MAX){
return icvSetFeatureCAM_DC1394(capture,
index,
-1
);
}
else return -1;
}
else { // manual settings
/* limitation of the input value */
if (value < 0.0) {
value = 0.0;
} else if (value > 1.0) {
value = 1.0;
}
unsigned int minval=0, maxval=0;
if(dc1394_get_min_value(
((CvCaptureCAM_DC1394 *)capture)->handle,
((CvCaptureCAM_DC1394 *)capture)->camera->node,
index,
&minval) == DC1394_FAILURE){
fprintf(stderr, "error getting min %d value\n", index);
return -1;
}
if(dc1394_get_max_value(
((CvCaptureCAM_DC1394 *)capture)->handle,
((CvCaptureCAM_DC1394 *)capture)->camera->node,
index,
&maxval) == DC1394_FAILURE){
fprintf(stderr, "error getting max %d value\n", index);
return -1;
}
if(index>=FEATURE_MIN && index<=FEATURE_MAX){
return icvSetFeatureCAM_DC1394(capture,
index,
(int)(value * (maxval - minval) + minval)
);
}
else return -1;
}
}
// function to set camera properties using dc1394 feature enum
// val == -1 indicates to set this property to 'auto'
static int
icvSetFeatureCAM_DC1394( CvCaptureCAM_DC1394* capture, int feature_id, int val){
dc1394bool_t isOn = DC1394_FALSE;
dc1394bool_t hasAutoCapability = DC1394_FALSE;
dc1394bool_t isAutoOn = DC1394_FALSE;
unsigned int nval;
unsigned int minval,maxval;
// Turn the feature on if it is OFF
if( dc1394_is_feature_on(capture->handle, capture->camera->node, feature_id, &isOn)
== DC1394_FAILURE ) {
return 0;
}
if( isOn == DC1394_FALSE ) {
// try to turn it on.
if( dc1394_feature_on_off(capture->handle, capture->camera->node, feature_id, 1) == DC1394_FAILURE ) {
fprintf(stderr, "error turning feature %d on!\n", feature_id);
return 0;
}
}
// Check if the feature supports auto mode
dc1394_has_auto_mode(capture->handle, capture->camera->node, feature_id, &hasAutoCapability);
if( hasAutoCapability ) {
// now check if the auto is on.
if( dc1394_is_feature_auto(capture->handle, capture->camera->node, feature_id, &isAutoOn ) == DC1394_FAILURE ) {
fprintf(stderr, "error determining if feature %d has auto on!\n", feature_id);
return 0;
}
}
// Caller requested auto mode, but cannot support it
else if(val==-1){
fprintf(stderr, "feature %d does not support auto mode\n", feature_id);
return 0;
}
if(val==-1){
// if the auto mode isn't enabled, enable it
if( isAutoOn == DC1394_FALSE ) {
if(dc1394_auto_on_off(capture->handle, capture->camera->node, feature_id, 1) == DC1394_FAILURE ) {
fprintf(stderr, "error turning feature %d auto ON!\n", feature_id);
return 0;
}
}
return 1;
}
// ELSE turn OFF auto and adjust feature manually
if( isAutoOn == DC1394_TRUE ) {
if(dc1394_auto_on_off(capture->handle, capture->camera->node, feature_id, 0) == DC1394_FAILURE ) {
fprintf(stderr, "error turning feature %d auto OFF!\n", feature_id);
return 0;
}
}
// Clamp val to within feature range
CV_DC1394_CALL( dc1394_get_min_value(capture->handle, capture->camera->node, feature_id, &minval));
CV_DC1394_CALL( dc1394_get_max_value(capture->handle, capture->camera->node, feature_id, &maxval));
val = (int)MIN(maxval, MAX((unsigned)val, minval));
if (dc1394_set_feature_value(capture->handle, capture->camera->node, feature_id, val) ==
DC1394_FAILURE){
fprintf(stderr, "error setting feature value\n");
return 0;
}
if (dc1394_get_feature_value(capture->handle, capture->camera->node, feature_id, &nval) ==
DC1394_FAILURE){
fprintf(stderr, "error setting feature value\n");
return 0;
}
return nval==(unsigned int)val;
}
static double icvGetPropertyCAM_DC1394( CvCaptureCAM_DC1394* capture, int property_id ){
_V_MW_ fprintf(stderr,"icvGetPropertyCAM_DC1394\n");
unsigned int index=0;
unsigned int mval=0;
unsigned int minval=0;
unsigned int maxval=0;
switch ( property_id ) {
default: return -1;
case CV_CAP_PROP_FRAME_HEIGHT:
return ((CvCaptureCAM_DC1394 *)capture)->camera->frame_height;
case CV_CAP_PROP_FRAME_WIDTH:
return ((CvCaptureCAM_DC1394 *)capture)->camera->frame_width;
case CV_CAP_PROP_CONVERT_RGB:
return capture->convert;
case CV_CAP_PROP_MODE:
return capture->mode;
case CV_CAP_PROP_FORMAT:
return capture->format;
case CV_CAP_PROP_FPS:
dc1394_get_video_framerate(capture->handle, capture->camera->node,
(unsigned int *) &capture->camera->frame_rate);
switch(capture->camera->frame_rate) {
default:
return -1;
case FRAMERATE_1_875:
return 1.875;
case FRAMERATE_3_75:
return 3.75;
case FRAMERATE_7_5:
return 7.5;
case FRAMERATE_15:
return 15.;
case FRAMERATE_30:
return 30.;
case FRAMERATE_60:
return 60;
#if NUM_FRAMERATES > 6
case FRAMERATE_120:
return 120;
#endif
#if NUM_FRAMERATES > 7
case FRAMERATE_240:
return 240;
#endif
}
case CV_CAP_PROP_BRIGHTNESS:
index = FEATURE_BRIGHTNESS;
break;
case CV_CAP_PROP_CONTRAST:
index = FEATURE_GAMMA;
break;
case CV_CAP_PROP_SATURATION:
index = FEATURE_SATURATION;
break;
case CV_CAP_PROP_HUE:
index = FEATURE_HUE;
break;
case CV_CAP_PROP_GAIN:
index = FEATURE_GAIN;
break;
}
if(dc1394_get_min_value(
((CvCaptureCAM_DC1394 *)capture)->handle,
((CvCaptureCAM_DC1394 *)capture)->camera->node,
index,
&minval) == DC1394_FAILURE){
fprintf(stderr, "error getting min %d value\n", index);
return -1;
}
if(dc1394_get_max_value(
((CvCaptureCAM_DC1394 *)capture)->handle,
((CvCaptureCAM_DC1394 *)capture)->camera->node,
index,
&maxval) == DC1394_FAILURE){
fprintf(stderr, "error getting max %d value\n", index);
return -1;
}
if(dc1394_get_feature_value(
((CvCaptureCAM_DC1394 *)capture)->handle,
((CvCaptureCAM_DC1394 *)capture)->camera->node,
index,
&mval) == DC1394_FAILURE){
fprintf(stderr, "error getting feature %d value\n", index);
return -1;
}
if(maxval == minval) return -1;
return ((double)mval - minval)/(maxval - minval);
}
