bool Libdc1394SequenceGrabber::initFrameRate(unsigned int rate)
{
msg(osg::INFO) << "initFrameRate" << std::endl;
if (!_camera) return false;
if (_format7) {
uint32_t bit_size;
dc1394_get_color_coding_bit_size(_sourceFormat,&bit_size);
int packet_size = DC1394_USE_MAX_AVAIL;
if(rate != 0) {
double bus_period;
if(_speed == DC1394_ISO_SPEED_800) {
bus_period = 0.0000625;
}
else {
bus_period = 0.000125;
}
int num_packets = (int)(1.0/(bus_period*rate)+0.5);
packet_size = ((_roi.width - _roi.x)*(_roi.height - _roi.y)*bit_size + (num_packets*8) - 1) / (num_packets*8);
}
dc1394error_t err = dc1394_format7_set_packet_size(_camera, _videomode, packet_size);
checkSuccess(err, "dc1394_format7_set_packet_size failed");
err = dc1394_format7_set_roi(_camera, _videomode, _sourceFormat, packet_size, _roi.x,_roi.y,_roi.width,_roi.height);
checkSuccess(err, "dc1394_format7_set_roi failed");
return (err == DC1394_SUCCESS);
}
dc1394framerates_t framerates;
dc1394error_t err=dc1394_video_get_supported_framerates(_camera,_videomode, &framerates);
checkSuccess(err, "dc1394_video_get_supported_framerates failed");
dc1394framerate_t framerate=framerates.framerates[framerates.num-1];
switch (rate) {
case 15:
framerate = DC1394_FRAMERATE_15;
break;
case 30:
framerate = DC1394_FRAMERATE_30;
break;
case 60:
framerate = DC1394_FRAMERATE_60;
break;
case 120:
framerate = DC1394_FRAMERATE_120;
break;
case 240:
framerate = DC1394_FRAMERATE_240;
}
err=dc1394_video_set_framerate(_camera, framerate);
checkSuccess(err, "dc1394_video_set_framerate failed");
return (err == DC1394_SUCCESS);
}
//--------------------------------------------------------------------
bool ofxVideoGrabberPtgrey::initGrabber(int w, int h, bool setUseTexture){
width = w;
height = h;
bUseTexture = setUseTexture;
// In format_7 the framerate is set by setting the packet_size
// this is used in dc1394_format7_set_roi()
// The following formula is from the libdc1394 faq
// http://damien.douxchamps.net/ieee1394/libdc1394/v2.x/faq/#How_can_I_work_out_the_packet_size_for_a_wanted_frame_rate
float bus_period = 0.000125; // for firewire 400
int frame_rate = 60;
int depth = 3;
int num_packets = (int)(1.0/(bus_period*frame_rate) + 0.5);
//packet_size = (width*height*depth + (num_packets*8) - 1)/(num_packets*8);
packet_size = DC1394_USE_MAX_AVAIL;
//first choose a device to use
if( bChooseDevice ) {
bool bFound = false;
for (uint32_t index = 0; index < deviceList->num; index++) {
if (deviceList->ids[index].unit == deviceID) {
bFound = true;
deviceID = deviceList->ids[index].guid;
}
}
if (!bFound) {
printf("initGrabber warning: Device ID for unit %x not found, using first device\n", deviceID);
deviceID = deviceList->ids[0].guid;
}
} else if(deviceList->num > 0) {
deviceID = deviceList->ids[0].guid;
} else {
ofLog(OF_LOG_ERROR, "in initGrabber, No cameras found");
}
camera = dc1394_camera_new(driver, deviceID);
if (!camera) {
ofLog(OF_LOG_ERROR, "Failed to initialize camera with guid %x", deviceID);
return 1;
}
/*-----------------------------------------------------------------------
* setup capture
*-----------------------------------------------------------------------*/
err = dc1394_video_set_iso_speed(camera, DC1394_ISO_SPEED_400);
if( err != DC1394_SUCCESS ) { ofLog(OF_LOG_ERROR, "failed to set iso speed"); }
err = dc1394_video_set_mode( camera, video_mode );
if( err != DC1394_SUCCESS ) { ofLog(OF_LOG_ERROR, "failed to set format 7 video mode"); }
err = dc1394_format7_set_color_coding(camera, video_mode, color_coding);
if( err != DC1394_SUCCESS ) { ofLog(OF_LOG_ERROR, "failed to set format 7 color coding"); }
err = dc1394_format7_set_packet_size(camera, video_mode, packet_size);
if( err != DC1394_SUCCESS ) { ofLog(OF_LOG_ERROR, "failed to set format 7 packet_size"); }
err = dc1394_format7_set_roi(camera, video_mode, color_coding, packet_size, 0,0, width,height);
if( err != DC1394_SUCCESS ) {
ofLog(OF_LOG_ERROR, "failed to set format 7");
}
//err = dc1394_video_set_framerate(camera, framerate);
//DC1394_ERR_CLN_RTN(err,cleanup_and_exit(camera),"Could not set framerate");
err = dc1394_capture_setup(camera,2, DC1394_CAPTURE_FLAGS_DEFAULT);
if( err != DC1394_SUCCESS ) { ofLog(OF_LOG_ERROR, "failed to setup dma capturing"); }
/*-----------------------------------------------------------------------
* set camera's features
*-----------------------------------------------------------------------*/
err = dc1394_feature_set_mode(camera, DC1394_FEATURE_BRIGHTNESS, DC1394_FEATURE_MODE_MANUAL);
err = dc1394_feature_set_value(camera, DC1394_FEATURE_BRIGHTNESS, 200); //1-255
err = dc1394_feature_set_mode(camera, DC1394_FEATURE_EXPOSURE, DC1394_FEATURE_MODE_MANUAL);
err = dc1394_feature_set_value(camera, DC1394_FEATURE_EXPOSURE, 62); //7-62
err = dc1394_feature_set_mode(camera, DC1394_FEATURE_SHUTTER, DC1394_FEATURE_MODE_MANUAL);
err = dc1394_feature_set_value(camera, DC1394_FEATURE_SHUTTER, 60); //1-263, 64 being the max for 60fps
err = dc1394_feature_set_mode(camera, DC1394_FEATURE_GAIN, DC1394_FEATURE_MODE_MANUAL);
err = dc1394_feature_set_value(camera, DC1394_FEATURE_GAIN, 50); //16-64
//err = dc1394_feature_set_mode(camera, DC1394_FEATURE_PAN, DC1394_FEATURE_MODE_MANUAL);
//err = dc1394_feature_set_value(camera, DC1394_FEATURE_PAN, 56);
/*-----------------------------------------------------------------------
* report camera's features
*-----------------------------------------------------------------------*/
err=dc1394_feature_get_all(camera,&features);
if (err!=DC1394_SUCCESS) {
dc1394_log_warning("Could not get feature set");
}
else {
dc1394_feature_print_all(&features, stdout);
}
/*-----------------------------------------------------------------------
* have the camera start sending us data
*-----------------------------------------------------------------------*/
err=dc1394_video_set_transmission(camera, DC1394_ON);
//DC1394_ERR_CLN_RTN(err,cleanup_and_exit(camera),"Could not start camera iso transmission");
//create pixel buffer
pixels = new unsigned char[width * height * 3];
//create texture
if (bUseTexture) {
tex.allocate(width,height,GL_LUMINANCE);
memset(pixels, 0, width*height);
tex.loadData(pixels, width, height, GL_LUMINANCE);
}
}
// Note:
// the following was tested on a IIDC camera over USB therefore might not work as
// well on a camera over proper firewire transport
void FirewireVideo::init_format7_camera(
uint64_t guid, int dma_frames,
dc1394speed_t iso_speed,
dc1394video_mode_t video_mode,
float framerate,
uint32_t width, uint32_t height,
uint32_t left, uint32_t top, bool reset_at_boot
) {
if(video_mode< DC1394_VIDEO_MODE_FORMAT7_0)
throw VideoException("roi can be specified only for format7 modes");
camera = dc1394_camera_new (d, guid);
if (!camera)
throw VideoException("Failed to initialize camera");
// Attempt to stop camera if it is already running
dc1394switch_t is_iso_on = DC1394_OFF;
dc1394_video_get_transmission(camera, &is_iso_on);
if (is_iso_on==DC1394_ON) {
dc1394_video_set_transmission(camera, DC1394_OFF);
}
cout << "Using camera with GUID " << camera->guid << endl;
if(reset_at_boot){
dc1394_camera_reset(camera);
}
//-----------------------------------------------------------------------
// setup mode and roi
//-----------------------------------------------------------------------
if(iso_speed >= DC1394_ISO_SPEED_800)
{
err=dc1394_video_set_operation_mode(camera, DC1394_OPERATION_MODE_1394B);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set DC1394_OPERATION_MODE_1394B");
}
err=dc1394_video_set_iso_speed(camera, iso_speed);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set iso speed");
// check that the required mode is actually supported
dc1394format7mode_t format7_info;
err = dc1394_format7_get_mode_info(camera, video_mode, &format7_info);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get format7 mode info");
// safely set the video mode
err=dc1394_video_set_mode(camera, video_mode);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 video mode");
// set position to 0,0 so that setting any size within min and max is a valid command
err = dc1394_format7_set_image_position(camera, video_mode,0,0);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 image position");
// work out the desired image size
width = nearest_value(width, format7_info.unit_pos_x, 0, format7_info.max_size_x - left);
height = nearest_value(height, format7_info.unit_pos_y, 0, format7_info.max_size_y - top);
// set size
err = dc1394_format7_set_image_size(camera,video_mode,width,height);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 size");
// get the info again since many parameters depend on image size
err = dc1394_format7_get_mode_info(camera, video_mode, &format7_info);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get format7 mode info");
// work out position of roi
left = nearest_value(left, format7_info.unit_size_x, format7_info.unit_size_x, format7_info.max_size_x - width);
top = nearest_value(top, format7_info.unit_size_y, format7_info.unit_size_y, format7_info.max_size_y - height);
// set roi position
err = dc1394_format7_set_image_position(camera,video_mode,left,top);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 size");
this->width = width;
this->height = height;
this->top = top;
this->left = left;
cout<<"roi: "<<left<<" "<<top<<" "<<width<<" "<<height<<" ";
//-----------------------------------------------------------------------
// setup frame rate
//-----------------------------------------------------------------------
err=dc1394_format7_set_packet_size(camera,video_mode, format7_info.max_packet_size);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 packet size");
if((framerate != MAX_FR) && (framerate != EXT_TRIG)){
//set the framerate by using the absolute feature as suggested by the
//folks at PointGrey
err = dc1394_feature_set_absolute_control(camera,DC1394_FEATURE_FRAME_RATE,DC1394_ON);
if( err != DC1394_SUCCESS )
throw VideoException("Could not turn on absolute frame rate control");
err = dc1394_feature_set_mode(camera,DC1394_FEATURE_FRAME_RATE,DC1394_FEATURE_MODE_MANUAL);
if( err != DC1394_SUCCESS )
throw VideoException("Could not make frame rate manual ");
err=dc1394_feature_set_absolute_value(camera,DC1394_FEATURE_FRAME_RATE,framerate);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 framerate ");
}
// ask the camera what is the resulting framerate (this assume that such a rate is actually
// allowed by the shutter time)
float value;
err=dc1394_feature_get_absolute_value(camera,DC1394_FEATURE_FRAME_RATE,&value);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get framerate");
cout<<" framerate(shutter permitting):"<<value<<endl;
//-----------------------------------------------------------------------
// setup capture
//-----------------------------------------------------------------------
err=dc1394_capture_setup(camera,dma_frames, DC1394_CAPTURE_FLAGS_DEFAULT);
if( err != DC1394_SUCCESS )
throw VideoException("Could not setup camera - check settings");
Start();
}
// Note:
// the following was tested on a IIDC camera over USB therefore might not work as
// well on a camera over proper firewire transport
void FirewireVideo::init_format7_camera(
uint64_t guid, int dma_frames,
dc1394speed_t iso_speed,
dc1394video_mode_t video_mode,
int framerate,
uint32_t width, uint32_t height,
uint32_t left, uint32_t top, bool reset_at_boot
) {
if(video_mode< DC1394_VIDEO_MODE_FORMAT7_0)
throw VideoException("roi can be specified only for format7 modes");
camera = dc1394_camera_new (d, guid);
if (!camera)
throw VideoException("Failed to initialize camera");
// Attempt to stop camera if it is already running
dc1394switch_t is_iso_on = DC1394_OFF;
dc1394_video_get_transmission(camera, &is_iso_on);
if (is_iso_on==DC1394_ON) {
dc1394_video_set_transmission(camera, DC1394_OFF);
}
cout << "Using camera with GUID " << camera->guid << endl;
if(reset_at_boot){
dc1394_camera_reset(camera);
}
//-----------------------------------------------------------------------
// setup mode and roi
//-----------------------------------------------------------------------
if(iso_speed >= DC1394_ISO_SPEED_800)
{
err=dc1394_video_set_operation_mode(camera, DC1394_OPERATION_MODE_1394B);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set DC1394_OPERATION_MODE_1394B");
}
err=dc1394_video_set_iso_speed(camera, iso_speed);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set iso speed");
// check that the required mode is actually supported
dc1394format7mode_t format7_info;
err = dc1394_format7_get_mode_info(camera, video_mode, &format7_info);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get format7 mode info");
// safely set the video mode
err=dc1394_video_set_mode(camera, video_mode);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 video mode");
// set position to 0,0 so that setting any size within min and max is a valid command
err = dc1394_format7_set_image_position(camera, video_mode,0,0);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 image position");
// work out the desired image size
width = nearest_value(width, format7_info.unit_pos_x, 0, format7_info.max_size_x - left);
height = nearest_value(height, format7_info.unit_pos_y, 0, format7_info.max_size_y - top);
// set size
err = dc1394_format7_set_image_size(camera,video_mode,width,height);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 size");
// get the info again since many parameters depend on image size
err = dc1394_format7_get_mode_info(camera, video_mode, &format7_info);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get format7 mode info");
// work out position of roi
left = nearest_value(left, format7_info.unit_size_x, format7_info.unit_size_x, format7_info.max_size_x - width);
top = nearest_value(top, format7_info.unit_size_y, format7_info.unit_size_y, format7_info.max_size_y - height);
// set roi position
err = dc1394_format7_set_image_position(camera,video_mode,left,top);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 size");
this->width = width;
this->height = height;
this->top = top;
this->left = left;
cout<<"roi: "<<left<<" "<<top<<" "<<width<<" "<<height<<" ";
//-----------------------------------------------------------------------
// setup frame rate
//-----------------------------------------------------------------------
if((framerate == MAX_FR)||(framerate == EXT_TRIG)){
err=dc1394_format7_set_packet_size(camera,video_mode, format7_info.max_packet_size);
if( err != DC1394_SUCCESS )
throw VideoException("Could not set format7 packet size");
} else {
// setting packet size to get the desired frame rate according to the libdc docs
// does not do the trick, so for now we support only max frame rate
throw VideoException("In format 7 only max frame rate is currently supported");
// uint32_t depth;
// err = dc1394_format7_get_data_depth(camera, video_mode, &depth);
// if( err != DC1394_SUCCESS )
// throw VideoException("Could not get format7 depth");
//
// // the following is straight from the libdc docs
// double bus_period = bus_period_from_iso_speed(iso_speed);
//
// // work out the max number of packets that the bus can deliver
// int num_packets = (int) (1.0/(bus_period*framerate) + 0.5);
//
// if((num_packets > 4095)||(num_packets < 0))
// throw VideoException("number of format7 packets out of range");
//
// // work out what the packet size should be for the requested size and framerate
// uint32_t packet_size = (width*964*depth + (num_packets*8) - 1)/(num_packets*8);
// packet_size = nearest_value(packet_size,format7_info.unit_packet_size,format7_info.unit_packet_size,format7_info.max_packet_size);
//
// if(packet_size > format7_info.max_packet_size){
// throw VideoException("format7 requested frame rate and size exceed bus bandwidth");
// }
//
// err=dc1394_format7_set_packet_size(camera,video_mode, packet_size);
// if( err != DC1394_SUCCESS ){
// throw VideoException("Could not set format7 packet size");
// }
}
// ask the camera what is the resulting framerate (this assume that such a rate is actually
// allowed by the shutter time)
err = dc1394_feature_set_power(camera,DC1394_FEATURE_FRAME_RATE,DC1394_OFF);
if( err != DC1394_SUCCESS )
throw VideoException("Could not turn off frame rate");
float value;
err=dc1394_feature_get_absolute_value(camera,DC1394_FEATURE_FRAME_RATE,&value);
if( err != DC1394_SUCCESS )
throw VideoException("Could not get framerate");
cout<<" framerate(shutter permitting):"<<value<<endl;
//-----------------------------------------------------------------------
// setup capture
//-----------------------------------------------------------------------
err=dc1394_capture_setup(camera,dma_frames, DC1394_CAPTURE_FLAGS_DEFAULT);
if( err != DC1394_SUCCESS )
throw VideoException("Could not setup camera - check settings");
Start();
}
