bool CvCaptureCAM_Aravis::open( int index )
{
if(create(index)) {
// fetch properties bounds
pixelFormats = arv_camera_get_available_pixel_formats(camera, &pixelFormatsCnt);
arv_camera_get_width_bounds(camera, &widthMin, &widthMax);
arv_camera_get_height_bounds(camera, &heightMin, &heightMax);
arv_camera_set_region(camera, 0, 0, widthMax, heightMax);
if( (fpsAvailable = arv_camera_is_frame_rate_available(camera)) )
arv_camera_get_frame_rate_bounds(camera, &fpsMin, &fpsMax);
if( (gainAvailable = arv_camera_is_gain_available(camera)) )
arv_camera_get_gain_bounds (camera, &gainMin, &gainMax);
if( (exposureAvailable = arv_camera_is_exposure_time_available(camera)) )
arv_camera_get_exposure_time_bounds (camera, &exposureMin, &exposureMax);
// get initial values
pixelFormat = arv_camera_get_pixel_format(camera);
exposure = exposureAvailable ? arv_camera_get_exposure_time(camera) : 0;
gain = gainAvailable ? arv_camera_get_gain(camera) : 0;
fps = arv_camera_get_frame_rate(camera);
return startCapture();
}
return false;
}
CamGigE::CamGigE(int id):
Cam(id)
{
mWidth = XSIZE;
mHeight = YSIZE;
xshift = 0;
yshift = 0;
exposure = 2*1000;
gain = 300;
isCapturing = false;
framerate = 15.0f;
mId = id;
g_type_init ();
camera = arv_camera_new(NULL);
if(camera == NULL)
{
throw "No camera found";
}
arv_camera_set_region(camera, xshift, yshift, mWidth, mHeight);
arv_camera_set_exposure_time(camera, exposure);
arv_camera_set_gain(camera, gain);
arv_camera_set_pixel_format(camera, ARV_PIXEL_FORMAT_MONO_8);
//arv_camera_set_pixel_format(camera, ARV_PIXEL_FORMAT_BAYER_BG_8);
width = (int)mWidth;
height = (int)mHeight;
arv_camera_get_region (camera, &xshift, &yshift, &width, &height);
payload = arv_camera_get_payload (camera);
stream = arv_camera_create_stream (camera, NULL, NULL);
if(stream == NULL) {
throw "Cannot create stream";
}
g_object_set(stream, "packet-timeout", (unsigned) 20 * 1000,
"frame-retention", (unsigned) 100 * 1000,
NULL);
for(int i = 0; i < 4; i++)
arv_stream_push_buffer(stream, arv_buffer_new(payload, NULL));
arv_camera_set_acquisition_mode(camera, ARV_ACQUISITION_MODE_CONTINUOUS);
arv_camera_set_frame_rate(camera, framerate);
rawdata = new unsigned char[width*height];
}
static unicap_status_t aravis_set_format( aravis_handle_t handle, unicap_format_t *format )
{
ArvPixelFormat fmt = aravis_tools_get_pixel_format (format);
if (fmt == 0)
return STATUS_INVALID_PARAMETER;
arv_camera_set_pixel_format (handle->camera, fmt);
arv_camera_set_region (handle->camera, format->size.x, format->size.y, format->size.width, format->size.height);
unicap_copy_format (&handle->current_format, format);
return STATUS_SUCCESS;
}
bool CameraGigeAravis::setSize(int width, int height, bool customSize) {
if(customSize) {
arv_camera_set_region(camera, 0, 0,width,height);
arv_camera_get_region (camera, NULL, NULL, &mWidth, &mHeight);
BOOST_LOG_SEV(logger, notification) << "Camera region size : " << mWidth << "x" << mHeight;
// Default is maximum size
}else {
int sensor_width, sensor_height;
arv_camera_get_sensor_size(camera, &sensor_width, &sensor_height);
BOOST_LOG_SEV(logger, notification) << "Camera sensor size : " << sensor_width << "x" << sensor_height;
arv_camera_set_region(camera, 0, 0,sensor_width,sensor_height);
arv_camera_get_region (camera, NULL, NULL, &mWidth, &mHeight);
}
return true;
}
static gboolean
gst_aravis_set_caps (GstBaseSrc *src, GstCaps *caps)
{
GstAravis* gst_aravis = GST_ARAVIS(src);
GstStructure *structure;
ArvPixelFormat pixel_format;
int height, width;
int bpp, depth;
const GValue *frame_rate;
const char *caps_string;
unsigned int i;
guint32 fourcc;
GST_LOG_OBJECT (gst_aravis, "Requested caps = %" GST_PTR_FORMAT, caps);
arv_camera_stop_acquisition (gst_aravis->camera);
if (gst_aravis->stream != NULL)
g_object_unref (gst_aravis->stream);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "height", &height);
frame_rate = gst_structure_get_value (structure, "framerate");
gst_structure_get_int (structure, "bpp", &bpp);
gst_structure_get_int (structure, "depth", &depth);
if (gst_structure_get_field_type (structure, "format") == G_TYPE_STRING) {
const char *string;
string = gst_structure_get_string (structure, "format");
fourcc = GST_STR_FOURCC (string);
} else if (gst_structure_get_field_type (structure, "format") == GST_TYPE_FOURCC) {
gst_structure_get_fourcc (structure, "format", &fourcc);
} else
fourcc = 0;
pixel_format = arv_pixel_format_from_gst_0_10_caps (gst_structure_get_name (structure), bpp, depth, fourcc);
arv_camera_set_region (gst_aravis->camera, gst_aravis->offset_x, gst_aravis->offset_y, width, height);
arv_camera_set_binning (gst_aravis->camera, gst_aravis->h_binning, gst_aravis->v_binning);
arv_camera_set_pixel_format (gst_aravis->camera, pixel_format);
if (frame_rate != NULL) {
double dbl_frame_rate;
dbl_frame_rate = (double) gst_value_get_fraction_numerator (frame_rate) /
(double) gst_value_get_fraction_denominator (frame_rate);
GST_DEBUG_OBJECT (gst_aravis, "Frame rate = %g Hz", dbl_frame_rate);
arv_camera_set_frame_rate (gst_aravis->camera, dbl_frame_rate);
if (dbl_frame_rate > 0.0)
gst_aravis->buffer_timeout_us = MAX (GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT,
3e6 / dbl_frame_rate);
else
gst_aravis->buffer_timeout_us = GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT;
} else
gst_aravis->buffer_timeout_us = GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT;
GST_DEBUG_OBJECT (gst_aravis, "Buffer timeout = %" G_GUINT64_FORMAT " µs", gst_aravis->buffer_timeout_us);
GST_DEBUG_OBJECT (gst_aravis, "Actual frame rate = %g Hz", arv_camera_get_frame_rate (gst_aravis->camera));
if(gst_aravis->gain_auto) {
arv_camera_set_gain_auto (gst_aravis->camera, ARV_AUTO_CONTINUOUS);
GST_DEBUG_OBJECT (gst_aravis, "Auto Gain = continuous");
} else {
if (gst_aravis->gain >= 0) {
GST_DEBUG_OBJECT (gst_aravis, "Gain = %g", gst_aravis->gain);
arv_camera_set_gain_auto (gst_aravis->camera, ARV_AUTO_OFF);
arv_camera_set_gain (gst_aravis->camera, gst_aravis->gain);
}
GST_DEBUG_OBJECT (gst_aravis, "Actual gain = %g", arv_camera_get_gain (gst_aravis->camera));
}
if(gst_aravis->exposure_auto) {
arv_camera_set_exposure_time_auto (gst_aravis->camera, ARV_AUTO_CONTINUOUS);
GST_DEBUG_OBJECT (gst_aravis, "Auto Exposure = continuous");
} else {
if (gst_aravis->exposure_time_us > 0.0) {
GST_DEBUG_OBJECT (gst_aravis, "Exposure = %g µs", gst_aravis->exposure_time_us);
arv_camera_set_exposure_time_auto (gst_aravis->camera, ARV_AUTO_OFF);
arv_camera_set_exposure_time (gst_aravis->camera, gst_aravis->exposure_time_us);
}
GST_DEBUG_OBJECT (gst_aravis, "Actual exposure = %g µs", arv_camera_get_exposure_time (gst_aravis->camera));
}
if (gst_aravis->fixed_caps != NULL)
gst_caps_unref (gst_aravis->fixed_caps);
caps_string = arv_pixel_format_to_gst_0_10_caps_string (pixel_format);
if (caps_string != NULL) {
GstStructure *structure;
GstCaps *caps;
caps = gst_caps_new_empty ();
structure = gst_structure_from_string (caps_string, NULL);
gst_structure_set (structure,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
NULL);
if (frame_rate != NULL)
gst_structure_set_value (structure, "framerate", frame_rate);
gst_caps_append_structure (caps, structure);
gst_aravis->fixed_caps = caps;
} else
gst_aravis->fixed_caps = NULL;
gst_aravis->payload = arv_camera_get_payload (gst_aravis->camera);
gst_aravis->stream = arv_camera_create_stream (gst_aravis->camera, NULL, NULL);
if (ARV_IS_GV_STREAM (gst_aravis->stream) && gst_aravis->packet_resend)
g_object_set (gst_aravis->stream, "packet-resend", ARV_GV_STREAM_PACKET_RESEND_ALWAYS, NULL);
else
g_object_set (gst_aravis->stream, "packet-resend", ARV_GV_STREAM_PACKET_RESEND_NEVER, NULL);
for (i = 0; i < GST_ARAVIS_N_BUFFERS; i++)
arv_stream_push_buffer (gst_aravis->stream,
arv_buffer_new (gst_aravis->payload, NULL));
GST_LOG_OBJECT (gst_aravis, "Start acquisition");
arv_camera_start_acquisition (gst_aravis->camera);
gst_aravis->timestamp_offset = 0;
gst_aravis->last_timestamp = 0;
return TRUE;
}
static gboolean
gst_aravis_set_caps (GstBaseSrc *src, GstCaps *caps)
{
GstAravis* gst_aravis = GST_ARAVIS(src);
GstStructure *structure;
ArvPixelFormat pixel_format;
int height, width;
int bpp, depth;
const GValue *frame_rate;
const char *caps_string;
unsigned int i;
guint32 fourcc;
GST_LOG_OBJECT (gst_aravis, "Requested caps = %" GST_PTR_FORMAT, caps);
arv_camera_stop_acquisition (gst_aravis->camera);
if (gst_aravis->stream != NULL)
g_object_unref (gst_aravis->stream);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "height", &height);
frame_rate = gst_structure_get_value (structure, "framerate");
gst_structure_get_fourcc (structure, "format", &fourcc);
gst_structure_get_int (structure, "bpp", &bpp);
gst_structure_get_int (structure, "depth", &depth);
pixel_format = arv_pixel_format_from_gst_caps (gst_structure_get_name (structure), bpp, depth, fourcc);
arv_camera_set_region (gst_aravis->camera, 0, 0, width, height);
arv_camera_set_binning (gst_aravis->camera, gst_aravis->h_binning, gst_aravis->v_binning);
arv_camera_set_pixel_format (gst_aravis->camera, pixel_format);
if (frame_rate != NULL) {
double dbl_frame_rate;
dbl_frame_rate = (double) gst_value_get_fraction_numerator (frame_rate) /
(double) gst_value_get_fraction_denominator (frame_rate);
GST_DEBUG_OBJECT (gst_aravis, "Frame rate = %g Hz", dbl_frame_rate);
arv_camera_set_frame_rate (gst_aravis->camera, dbl_frame_rate);
if (dbl_frame_rate > 0.0)
gst_aravis->buffer_timeout_us = MAX (GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT,
3e6 / dbl_frame_rate);
else
gst_aravis->buffer_timeout_us = GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT;
} else
gst_aravis->buffer_timeout_us = GST_ARAVIS_BUFFER_TIMEOUT_DEFAULT;
GST_DEBUG_OBJECT (gst_aravis, "Buffer timeout = %Ld µs", gst_aravis->buffer_timeout_us);
GST_DEBUG_OBJECT (gst_aravis, "Actual frame rate = %g Hz", arv_camera_get_frame_rate (gst_aravis->camera));
GST_DEBUG_OBJECT (gst_aravis, "Gain = %d", gst_aravis->gain);
arv_camera_set_gain (gst_aravis->camera, gst_aravis->gain);
GST_DEBUG_OBJECT (gst_aravis, "Actual gain = %d", arv_camera_get_gain (gst_aravis->camera));
GST_DEBUG_OBJECT (gst_aravis, "Exposure = %g µs", gst_aravis->exposure_time_us);
arv_camera_set_exposure_time (gst_aravis->camera, gst_aravis->exposure_time_us);
GST_DEBUG_OBJECT (gst_aravis, "Actual exposure = %g µs", arv_camera_get_exposure_time (gst_aravis->camera));
if (gst_aravis->fixed_caps != NULL)
gst_caps_unref (gst_aravis->fixed_caps);
caps_string = arv_pixel_format_to_gst_caps_string (pixel_format);
if (caps_string != NULL) {
GstStructure *structure;
GstCaps *caps;
caps = gst_caps_new_empty ();
structure = gst_structure_from_string (caps_string, NULL);
gst_structure_set (structure,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
NULL);
if (frame_rate != NULL)
gst_structure_set_value (structure, "framerate", frame_rate);
gst_caps_append_structure (caps, structure);
gst_aravis->fixed_caps = caps;
} else
gst_aravis->fixed_caps = NULL;
gst_aravis->payload = arv_camera_get_payload (gst_aravis->camera);
gst_aravis->stream = arv_camera_create_stream (gst_aravis->camera, NULL, NULL);
for (i = 0; i < GST_ARAVIS_N_BUFFERS; i++)
arv_stream_push_buffer (gst_aravis->stream,
arv_buffer_new (gst_aravis->payload, NULL));
GST_LOG_OBJECT (gst_aravis, "Start acquisition");
arv_camera_start_acquisition (gst_aravis->camera);
gst_aravis->timestamp_offset = 0;
gst_aravis->last_timestamp = 0;
return TRUE;
}
int
main (int argc, char **argv)
{
ApplicationData data;
ArvCamera *camera;
ArvStream *stream;
ArvBuffer *buffer;
int i;
data.buffer_count = 0;
/* Mandatory glib type system initialization */
arv_g_type_init ();
/* Instantiation of the first available camera */
camera = arv_camera_new (NULL);
if (camera != NULL) {
void (*old_sigint_handler)(int);
gint payload;
guint software_trigger_source = 0;
/* Set region of interrest to a 200x200 pixel area */
arv_camera_set_region (camera, 0, 0, 200, 200);
/* Set frame rate to 10 Hz */
arv_camera_set_frame_rate (camera, 10.0);
/* retrieve image payload (number of bytes per image) */
payload = arv_camera_get_payload (camera);
/* Create a new stream object */
stream = arv_camera_create_stream (camera, NULL, NULL);
if (stream != NULL) {
/* Push 50 buffer in the stream input buffer queue */
for (i = 0; i < 50; i++)
arv_stream_push_buffer (stream, arv_buffer_new (payload, NULL));
/* Start the video stream */
arv_camera_start_acquisition (camera);
/* Connect the new-buffer signal */
g_signal_connect (stream, "new-buffer", G_CALLBACK (new_buffer_cb), &data);
/* And enable emission of this signal (it's disabled by default for performance reason) */
arv_stream_set_emit_signals (stream, TRUE);
/* Connect the control-lost signal */
g_signal_connect (arv_camera_get_device (camera), "control-lost",
G_CALLBACK (control_lost_cb), NULL);
/* Install the callback for frame rate display */
g_timeout_add_seconds (1, periodic_task_cb, &data);
/* Create a new glib main loop */
data.main_loop = g_main_loop_new (NULL, FALSE);
old_sigint_handler = signal (SIGINT, set_cancel);
/* Run the main loop */
g_main_loop_run (data.main_loop);
signal (SIGINT, old_sigint_handler);
g_main_loop_unref (data.main_loop);
/* Stop the video stream */
arv_camera_stop_acquisition (camera);
g_object_unref (stream);
} else
printf ("Can't create stream thread (check if the device is not already used)\n");
g_object_unref (camera);
} else
printf ("No camera found\n");
return 0;
}
