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framelinksrc: add (untested) support for multiple boards

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This commit is contained in:
Joshua M. Doe 2014-01-16 14:32:37 -05:00
parent 17a360b8d2
commit 181607d15c
1 changed files with 19 additions and 5 deletions
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24
sys/imperx/gstframelinksrc.c
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@ -129,7 +129,7 @@ gst_framelinksrc_class_init (GstFramelinkSrcClass * klass)
DEFAULT_PROP_NUM_CAPTURE_BUFFERS,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BOARD,
g_param_spec_uint ("board", "Board", "Board number (0 for auto)", 0, 7,
g_param_spec_uint ("board", "Board", "Board number", 0, 7,
DEFAULT_PROP_BOARD,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_CHANNEL,
@ -278,6 +278,8 @@ gst_framelinksrc_start (GstBaseSrc * bsrc)
GstVideoInfo vinfo;
int bpp, Bpp;
VCECLB_CameraDataEx *ci;
VCECLB_EnumData enumData;
HANDLE hDevEnum;
GST_DEBUG_OBJECT (src, "start");
@ -328,12 +330,24 @@ gst_framelinksrc_start (GstBaseSrc * bsrc)
return FALSE;
}
/* TODO: use VCECLB_InitByHandle */
src->grabber = VCECLB_Init ();
/* enumerate devices */
enumData.cbSize = sizeof (VCECLB_EnumData);
hDevEnum = VCECLB_EnumInit ();
while (VCECLB_EnumNext (hDevEnum, &enumData) == VCECLB_Err_Success) {
GST_DEBUG_OBJECT (src, "Found device: slot #%d, name '%s'",
enumData.dwSlot, enumData.pSlotName);
if (enumData.dwSlot == src->board) {
src->grabber = VCECLB_InitByHandle (enumData.pDeviceData, 0);
break;
}
}
VCECLB_EnumClose (hDevEnum);
if (src->grabber == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
("Failed to initialize grabber (code %d)", VCECLB_CardLastError ()),
(NULL));
("Invalid board/device number or failed to initialize grabber (code %d)",
VCECLB_CardLastError ()), (NULL));
return FALSE;
}