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gentlsrc: allow two interfaces of the same producer to be opened in one process

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Need to make it producer specific, and allow for multiple devices on the same interface
This commit is contained in:
Joshua M. Doe 2021-06-04 10:50:30 -04:00
parent 766d2de7e5
commit 63731a3b6f
2 changed files with 125 additions and 54 deletions
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128
sys/gentl/gstgentlsrc.c
View File

@ -137,6 +137,7 @@ static gboolean gst_gentlsrc_unlock_stop (GstBaseSrc * src);
static GstFlowReturn gst_gentlsrc_create (GstPushSrc * src, GstBuffer ** buf);
static gchar *gst_gentlsrc_get_error_string (GstGenTlSrc * src);
static void gst_gentlsrc_cleanup_tl (GstGenTlSrc * src);
enum
{
@ -404,6 +405,9 @@ gst_gentlsrc_class_init (GstGenTlSrcClass * klass)
"Attributes", "Attributes to change, comma separated key=value pairs",
DEFAULT_PROP_ATTRIBUTES, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
klass->hTL = NULL;
g_mutex_init (&klass->tl_mutex);
klass->tl_refcount = 0;
}
static void
@ -967,35 +971,22 @@ gst_gentlsrc_set_attributes (GstGenTlSrc * src)
}
static gboolean
gst_gentlsrc_start (GstBaseSrc * bsrc)
gst_gentlsrc_open_tl (GstGenTlSrc * src)
{
GstGenTlSrc *src = GST_GENTL_SRC (bsrc);
GstGenTlSrcClass *klass = GST_GENTL_SRC_GET_CLASS (src);
GC_ERROR ret;
uint32_t i, num_ifaces, num_devs;
guint32 width, height, stride;
GstVideoInfo vinfo;
uint32_t i, num_ifaces;
GST_DEBUG_OBJECT (src, "start");
if (src->producer_prop == GST_GENTLSRC_PRODUCER_BASLER) {
initialize_basler_addresses (&src->producer);
} else if (src->producer_prop == GST_GENTLSRC_PRODUCER_EVT) {
initialize_evt_addresses (&src->producer);
/* open framegrabber if it isn't already opened */
if (klass->tl_refcount > 0) {
GST_DEBUG_OBJECT (src,
"Framegrabber interface already opened in this process, reusing");
src->hTL = klass->hTL;
klass->tl_refcount++;
} else {
g_assert_not_reached ();
}
/* bind functions from CTI */
/* TODO: Enumerate CTI files in env var GENTL_GENTL64_PATH */
if (!gst_gentlsrc_bind_functions (src)) {
GST_ELEMENT_ERROR (src, LIBRARY, INIT,
("GenTL CTI could not be opened: %s", g_module_error ()), (NULL));
return FALSE;
}
/* initialize library and print info */
ret = GTL_GCInitLib ();
HANDLE_GTL_ERROR ("GenTL Producer library could not be initialized");
//HANDLE_GTL_ERROR ("GenTL Producer library could not be initialized");
gst_gentl_print_gentl_impl_info (src);
@ -1021,6 +1012,22 @@ gst_gentlsrc_start (GstBaseSrc * bsrc)
goto error;
}
klass->hTL = src->hTL;
klass->tl_refcount++;
}
return TRUE;
error:
return FALSE;
}
static gboolean
gst_gentlsrc_open_interface (GstGenTlSrc * src)
{
GstGenTlSrcClass *klass = GST_GENTL_SRC_GET_CLASS (src);
GC_ERROR ret;
if (!src->interface_id || src->interface_id[0] == 0) {
size_t id_size;
GST_DEBUG_OBJECT (src, "Trying to find interface ID at index %d",
@ -1042,6 +1049,54 @@ gst_gentlsrc_start (GstBaseSrc * bsrc)
ret = GTL_TLOpenInterface (src->hTL, src->interface_id, &src->hIF);
HANDLE_GTL_ERROR ("Interface module failed to open");
return TRUE;
error:
return FALSE;
}
static gboolean
gst_gentlsrc_start (GstBaseSrc * bsrc)
{
GstGenTlSrc *src = GST_GENTL_SRC (bsrc);
GstGenTlSrcClass *klass = GST_GENTL_SRC_GET_CLASS (src);
GC_ERROR ret;
uint32_t i, num_devs;
guint32 width, height, stride;
GstVideoInfo vinfo;
GST_DEBUG_OBJECT (src, "start");
if (src->producer_prop == GST_GENTLSRC_PRODUCER_BASLER) {
initialize_basler_addresses (&src->producer);
} else if (src->producer_prop == GST_GENTLSRC_PRODUCER_EVT) {
initialize_evt_addresses (&src->producer);
} else {
g_assert_not_reached ();
}
/* bind functions from CTI */
/* TODO: Enumerate CTI files in env var GENTL_GENTL64_PATH */
if (!gst_gentlsrc_bind_functions (src)) {
GST_ELEMENT_ERROR (src, LIBRARY, INIT,
("GenTL CTI could not be opened: %s", g_module_error ()), (NULL));
return FALSE;
}
g_mutex_lock (&klass->tl_mutex);
if (!gst_gentlsrc_open_tl (src)) {
g_mutex_unlock (&klass->tl_mutex);
goto error;
}
if (!gst_gentlsrc_open_interface (src)) {
g_mutex_unlock (&klass->tl_mutex);
goto error;
}
g_mutex_unlock (&klass->tl_mutex);
ret = GTL_IFUpdateDeviceList (src->hIF, NULL, src->timeout);
HANDLE_GTL_ERROR ("Failed to update device list within timeout");
@ -1392,14 +1447,30 @@ error:
src->hIF = NULL;
}
gst_gentlsrc_cleanup_tl (src);
return FALSE;
}
static void
gst_gentlsrc_cleanup_tl (GstGenTlSrc * src)
{
GstGenTlSrcClass *klass = GST_GENTL_SRC_GET_CLASS (src);
if (src->hTL) {
g_mutex_lock (&klass->tl_mutex);
GST_DEBUG_OBJECT (src, "Framegrabber open with refcount=%d",
klass->tl_refcount);
klass->tl_refcount--;
if (klass->tl_refcount == 0) {
GST_DEBUG_OBJECT (src, "Framegrabber ref dropped to 0, closing");
GTL_TLClose (src->hTL);
src->hTL = NULL;
}
g_mutex_unlock (&klass->tl_mutex);
src->hTL = NULL;
GTL_GCCloseLib ();
return FALSE;
}
}
static gboolean
@ -1434,12 +1505,7 @@ gst_gentlsrc_stop (GstBaseSrc * bsrc)
src->hIF = NULL;
}
if (src->hTL) {
GTL_TLClose (src->hTL);
src->hTL = NULL;
}
GTL_GCCloseLib ();
gst_gentlsrc_cleanup_tl (src);
GST_DEBUG_OBJECT (src, "Closed data stream, device, interface, and library");

5
sys/gentl/gstgentlsrc.h
View File

@ -34,6 +34,8 @@ G_BEGIN_DECLS
#define GST_GENTL_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GENTL_SRC,GstGenTlSrcClass))
#define GST_IS_GENTL_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GENTL_SRC))
#define GST_IS_GENTL_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GENTL_SRC))
#define GST_GENTL_SRC_GET_CLASS(klass) \
(G_TYPE_INSTANCE_GET_CLASS ((klass), GST_TYPE_GENTL_SRC, GstGenTlSrcClass))
typedef struct _GstGenTlSrc GstGenTlSrc;
typedef struct _GstGenTlSrcClass GstGenTlSrcClass;
@ -116,6 +118,9 @@ struct _GstGenTlSrc
struct _GstGenTlSrcClass
{
GstPushSrcClass base_gentlsrc_class;
TL_HANDLE hTL;
GMutex tl_mutex;
guint tl_refcount;
};
GType gst_gentlsrc_get_type (void);