/**
* gst_niimaqsrc_close_interface:
* src: #GstNiImaqSrc instance
*
* Close IMAQ session and interface
*
*/
static gboolean
gst_niimaqsrc_close_interface (GstNiImaqSrc * src)
{
Int32 rval;
gboolean result = TRUE;
/* close IMAQ session and interface */
if (src->sid) {
rval = imgClose (src->sid, TRUE);
if (rval != IMG_ERR_GOOD) {
gst_niimaqsrc_report_imaq_error (rval);
result = FALSE;
} else
GST_LOG_OBJECT (src, "IMAQ session closed");
src->sid = 0;
}
if (src->iid) {
rval = imgClose (src->iid, TRUE);
if (rval != IMG_ERR_GOOD) {
gst_niimaqsrc_report_imaq_error (rval);
result = FALSE;
} else {
GST_LOG_OBJECT (src, "IMAQ interface closed");
}
src->iid = 0;
}
return result;
}
void CameraClose()
{
fastCMOS->stop();
delete fastCMOS;
fastCMOS = 0;
imgClose(session, 0);
imgClose(ifid, 1);
CloseDisplay();
}
/**
* gst_niimaqsrc_class_probe_interfaces:
* @klass: #GstNiImaqClass
* @check: whether to enumerate interfaces
*
* Probes NI-IMAQ driver for available interfaces
*
* Returns: TRUE always
*/
static gboolean
gst_niimaqsrc_class_probe_interfaces (GstNiImaqSrcClass * klass, gboolean check)
{
if (!check) {
guint32 n;
gchar name[256];
/* clear interface list */
while (interfaces) {
gchar *iface = interfaces->data;
interfaces = g_list_remove (interfaces, iface);
g_free (iface);
}
GST_LOG_OBJECT (klass, "About to probe for IMAQ interfaces");
/* enumerate interfaces, limiting ourselves to the first 64 */
for (n = 0; n < 64; n++) {
guint32 iid;
guint32 nports;
guint32 port;
gchar *iname;
uInt32 rval;
/* get interface names until there are no more */
if (rval = imgInterfaceQueryNames (n, name) != 0) {
gst_niimaqsrc_report_imaq_error (rval);
break;
}
/* ignore NICFGen */
if (g_strcmp0 (name, "NICFGen.iid") == 0)
continue;
/* try and open the interface */
if (rval = imgInterfaceOpen (name, &iid) != 0) {
gst_niimaqsrc_report_imaq_error (rval);
continue;
}
/* find how many ports the interface provides */
rval = imgGetAttribute (iid, IMG_ATTR_NUM_PORTS, &nports);
gst_niimaqsrc_report_imaq_error (rval);
rval = imgClose (iid, TRUE);
gst_niimaqsrc_report_imaq_error (rval);
/* iterate over all the available ports */
for (port = 0; port < nports; port++) {
/* if the there are multiple ports append the port number */
if (nports > 1)
iname = g_strdup_printf ("%s::%d", name, port);
else
iname = g_strdup (name);
/* TODO: should check to see if a camera is actually attached */
interfaces = g_list_append (interfaces, iname);
GST_DEBUG_OBJECT (klass, "Adding interface '%s' to list", iname);
}
}
init = TRUE;
}
klass->interfaces = interfaces;
return init;
}
