int _getBinning(uint32_t *sX, uint32_t *sY){
if(camera==NULL) {
dc1394_log_error("Camera is not initialised");
return -1;
}
err=dc1394_format7_get_unit_size(camera, video_mode, sX, sY);
DC1394_ERR_RTN(err,"Unable to set Format7 mode 0.\nEdit the example file manually to fit your camera capabilities");
return 0;
}
void ofxLibdc::quantizeSize() {
unsigned int hunit, vunit;
dc1394_format7_get_unit_size(camera, videoMode, &hunit, &vunit);
width = (width / hunit) * hunit;
height = (height / vunit) * vunit;
}
GstCaps *
gst_dc1394_get_cam_caps (GstDc1394 * src)
{
dc1394camera_t *camera = NULL;
dc1394camera_list_t *cameras = NULL;
dc1394error_t camerr;
gint i, j;
dc1394video_modes_t modes;
dc1394framerates_t framerates;
GstCaps *gcaps = NULL;
gcaps = gst_caps_new_empty ();
camerr = dc1394_camera_enumerate (src->dc1394, &cameras);
if (camerr != DC1394_SUCCESS || cameras == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND,
("Can't find cameras error : %d", camerr),
("Can't find cameras error : %d", camerr));
goto error;
}
if (cameras->num == 0) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, ("There were no cameras"),
("There were no cameras"));
goto error;
}
if (src->camnum > (cameras->num - 1)) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid camera number"),
("Invalid camera number %d", src->camnum));
goto error;
}
camera =
dc1394_camera_new_unit (src->dc1394, cameras->ids[src->camnum].guid,
cameras->ids[src->camnum].unit);
dc1394_camera_free_list (cameras);
cameras = NULL;
camerr = dc1394_video_get_supported_modes (camera, &modes);
if (camerr != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Error getting supported modes"),
("Error getting supported modes"));
goto error;
}
for (i = modes.num - 1; i >= 0; i--) {
int m = modes.modes[i];
if (m < DC1394_VIDEO_MODE_EXIF) {
GstStructure *gs = gst_structure_empty_new ("video");
gst_structure_set (gs, "vmode", G_TYPE_INT, m, NULL);
if (gst_dc1394_caps_set_format_vmode_caps (gs, m) < 0) {
GST_ELEMENT_ERROR (src, STREAM, FAILED,
("attempt to set mode to %d failed", m),
("attempt to set mode to %d failed", m));
goto error;
} else {
camerr = dc1394_video_get_supported_framerates (camera, m, &framerates);
gst_dc1394_caps_set_framerate_list (gs, &framerates);
gst_caps_append_structure (gcaps, gs);
}
} else {
// FORMAT 7
guint maxx, maxy;
GstStructure *gs = gst_structure_empty_new ("video");
dc1394color_codings_t colormodes;
guint xunit, yunit;
gst_structure_set (gs, "vmode", G_TYPE_INT, m, NULL);
// Get the maximum frame size
camerr = dc1394_format7_get_max_image_size (camera, m, &maxx, &maxy);
if (camerr != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Error getting format 7 max image size"),
("Error getting format 7 max image size"));
goto error;
}
GST_LOG_OBJECT (src, "Format 7 maxx=%d maxy=%d", maxx, maxy);
camerr = dc1394_format7_get_unit_size (camera, m, &xunit, &yunit);
if (camerr != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Error getting format 7 image unit size"),
("Error getting format 7 image unit size"));
goto error;
}
GST_LOG_OBJECT (src, "Format 7 unitx=%d unity=%d", xunit, yunit);
gst_dc1394_set_caps_framesize_range (gs, xunit, maxx, xunit,
yunit, maxy, yunit);
// note that format 7 has no concept of a framerate, so we pass the
// full range
gst_structure_set (gs,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
// get the available color codings
camerr = dc1394_format7_get_color_codings (camera, m, &colormodes);
if (camerr != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Error getting format 7 color modes"),
("Error getting format 7 color modes"));
goto error;
}
for (j = 0; j < colormodes.num; j++) {
GstStructure *newgs = gst_structure_copy (gs);
gst_dc1394_set_caps_color (newgs, colormodes.codings[j]);
GST_LOG_OBJECT (src, "Format 7 colormode set : %d",
colormodes.codings[j]);
// note that since there are multiple color modes, we append
// multiple structures.
gst_caps_append_structure (gcaps, newgs);
}
}
}
if (camera) {
dc1394_camera_free (camera);
}
return gcaps;
error:
if (gcaps) {
gst_caps_unref (gcaps);
}
if (cameras) {
dc1394_camera_free_list (cameras);
cameras = NULL;
}
if (camera) {
dc1394_camera_free (camera);
camera = NULL;
}
return NULL;
}
