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pleorasrc: add packet-size property

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Also, if auto-negotiate (packet-size=0) is used (the default), and
negotiation fails, use the safe packet size of 1476 bytes.
This commit is contained in:
Joshua M. Doe 2019-10-17 14:58:37 -04:00
parent 351aab12d8
commit e4ae64b44b
2 changed files with 33 additions and 9 deletions
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41
sys/pleora/gstpleorasrc.cpp
View File

@ -76,7 +76,8 @@ enum
PROP_DETECTION_TIMEOUT,
PROP_MULTICAST_GROUP,
PROP_PORT,
PROP_RECEIVER_ONLY
PROP_RECEIVER_ONLY,
PROP_PACKET_SIZE
};
#define DEFAULT_PROP_DEVICE ""
@ -87,7 +88,7 @@ enum
#define DEFAULT_PROP_MULTICAST_GROUP "0.0.0.0"
#define DEFAULT_PROP_PORT 1042
#define DEFAULT_PROP_RECEIVER_ONLY FALSE
#define DEFAULT_PROP_PACKET_SIZE 0
#define VIDEO_CAPS_MAKE_BAYER8(format) \
"video/x-bayer, " \
@ -191,6 +192,11 @@ gst_pleorasrc_class_init (GstPleoraSrcClass * klass)
"Only open video stream, don't open as controller",
DEFAULT_PROP_RECEIVER_ONLY,
(GParamFlags) (G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE)));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PACKET_SIZE,
g_param_spec_int ("packet-size", "Packet size",
"Packet size (0 to auto negotiate)", 0, 65535,
DEFAULT_PROP_PACKET_SIZE,
(GParamFlags) (G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE)));
}
static void
@ -269,6 +275,9 @@ gst_pleorasrc_set_property (GObject * object, guint property_id,
case PROP_RECEIVER_ONLY:
src->receiver_only = g_value_get_boolean (value);
break;
case PROP_PACKET_SIZE:
src->packet_size = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -309,6 +318,9 @@ gst_pleorasrc_get_property (GObject * object, guint property_id,
case PROP_RECEIVER_ONLY:
g_value_set_boolean (value, src->receiver_only);
break;
case PROP_PACKET_SIZE:
g_value_set_int (value, src->packet_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -622,14 +634,25 @@ gst_pleorasrc_setup_stream (GstPleoraSrc * src)
const PvStreamGEV *lStreamGEV = static_cast < PvStreamGEV * >(src->stream);
#endif
// Negotiate packet size
pvRes = lDeviceGEV->NegotiatePacketSize ();
if (!pvRes.IsOK ()) {
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
("Failed to negotiate packet size: %s",
pvRes.GetDescription ().GetAscii ()), (NULL));
goto stream_config_failed;
if (src->packet_size == 0) {
/* Negotiate packet size, use safe default if it fails */
pvRes = lDeviceGEV->NegotiatePacketSize (0, 1476);
if (!pvRes.IsOK ()) {
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
("Failed to negotiate packet size: %s",
pvRes.GetDescription ().GetAscii ()), (NULL));
goto stream_config_failed;
}
} else {
pvRes = lDeviceGEV->SetPacketSize (src->packet_size);
if (!pvRes.IsOK ()) {
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
("Failed to set packet size to %d: %s", src->packet_size,
pvRes.GetDescription ().GetAscii ()), (NULL));
goto stream_config_failed;
}
}
// Configure device streaming destination
pvRes = lDeviceGEV->SetStreamDestination (lStreamGEV->GetLocalIPAddress (),
lStreamGEV->GetLocalPort ());

1
sys/pleora/gstpleorasrc.h
View File

@ -55,6 +55,7 @@ struct _GstPleoraSrc
gchar *multicast_group;
gint port;
gboolean receiver_only;
gint packet_size;
guint32 last_frame_count;
guint32 total_dropped_frames;