def callBackMetadata(self, currentTime, nextTime):
""" Metadata CallBack """
try:
t = callBackMetadataThread(cmds=[
'-i', self.fileName, '-ss', currentTime, '-to', nextTime,
'-map', 'data-re', '-f', 'data', '-'
])
t.start()
t.join(1)
if t.is_alive():
t.p.terminate()
t.join()
if t.stdout == b'':
return
for packet in StreamParser(t.stdout):
try:
self.addMetadata(packet.MetadataList())
UpdateLayers(packet,
parent=self,
mosaic=self.createingMosaic)
self.iface.mapCanvas().refresh()
QApplication.processEvents()
return
except Exception as e:
None
except Exception as e:
qgsu.showUserAndLogMessage(QCoreApplication.translate(
"QgsFmvPlayer", "Metadata Callback Failed! : "),
str(e),
level=QGis.Info)
def test_singlepacket(self):
# Example from MISB ST 0902.5
with open("./data/DynamicConstantMISMMSPacketData.bin", "rb") as f:
packet = f.read()
from QGIS_FMV.klvdata.streamparser import StreamParser
for packet in StreamParser(packet):
# packet.structure()
pass
def packetStreamParser(self, stdout_data):
''' Common packet process'''
for packet in StreamParser(stdout_data):
try:
if isinstance(packet, UnknownElement):
qgsu.showUserAndLogMessage(
"Error interpreting klv data, metadata cannot be read.",
"the parser did not recognize KLV data",
level=QGis.Warning,
onlyLog=True)
continue
data = packet.MetadataList()
self.data = data
if self.metadataDlg.isVisible(
): # Only add metada to table if this QDockWidget is visible (speed plugin)
self.metadataDlg.menuSave.setEnabled(True)
self.addMetadata(data)
UpdateLayers(packet, parent=self, mosaic=self.createingMosaic)
QApplication.processEvents()
return
except Exception:
None
def getVideoLocationInfo(videoPath):
""" Get basic location info about the video """
location = []
try:
p = _spawn([
'-i', videoPath, '-ss', '00:00:00', '-to', '00:00:01', '-map',
'data-re', '-f', 'data', '-'
])
stdout_data, _ = p.communicate()
if stdout_data == b'':
return
for packet in StreamParser(stdout_data):
packet.MetadataList()
frameCenterLat = packet.GetFrameCenterLatitude()
frameCenterLon = packet.GetFrameCenterLongitude()
location = [frameCenterLat, frameCenterLon]
qgsu.showUserAndLogMessage(QCoreApplication.translate(
"QgsFmvUtils", "Got Location: lon: " + str(frameCenterLon) +
" lat: " + str(frameCenterLat)),
onlyLog=True)
break
else:
qgsu.showUserAndLogMessage(QCoreApplication.translate(
"QgsFmvUtils", "This video doesn't have Metadata ! : "),
level=QGis.Info)
except Exception as e:
qgsu.showUserAndLogMessage(QCoreApplication.translate(
"QgsFmvUtils", "Video info callback failed! : "),
str(e),
level=QGis.Info)
return location
from QGIS_FMV.klvdata.element import UnknownElement
from QGIS_FMV.klvdata.streamparser import StreamParser
import sys
from qgis.PyQt.QtWidgets import QApplication
app = QApplication([""])
print('Number of arguments:', len(sys.argv), 'arguments.')
if len(sys.argv) == 2:
print("data: " + sys.argv[1])
stdout_data = open(sys.argv[1], 'rb').read()
for packet in StreamParser(stdout_data):
if isinstance(packet, UnknownElement):
print("Error interpreting klv data, metadata cannot be read.")
continue
data = packet.MetadataList()
print("First Precision Time Stamp:" + str(data[2]))
def getVideoLocationInfo(videoPath, dataFile=False):
""" Get basic location info about the video """
location = []
try:
if dataFile == False:
p = _spawn([
'-i', videoPath, '-ss', '00:00:00', '-to', '00:00:01', '-map',
'data-re', '-f', 'data', '-'
])
stdout_data, _ = p.communicate()
################
else:
global listOfMetadata
stdout_data = listOfMetadata[0]
################
if stdout_data == b'':
return
for packet in StreamParser(stdout_data):
if isinstance(packet, UnknownElement):
qgsu.showUserAndLogMessage(
"Error interpreting klv data, metadata cannot be read.",
"the parser did not recognize KLV data",
level=QGis.Warning)
continue
packet.MetadataList()
frameCenterLat = packet.FrameCenterLatitude
frameCenterLon = packet.FrameCenterLongitude
loc = "-"
if Reverse_geocoding_url != "":
try:
url = QUrl(
Reverse_geocoding_url.format(str(frameCenterLat),
str(frameCenterLon)))
request = QNetworkRequest(url)
reply = QgsNetworkAccessManager.instance().get(request)
loop = QEventLoop()
reply.finished.connect(loop.quit)
loop.exec_()
reply.finished.disconnect(loop.quit)
loop = None
result = reply.readAll()
data = json.loads(result.data())
if "village" in data["address"] and "state" in data[
"address"]:
loc = data["address"]["village"] + \
", " + data["address"]["state"]
elif "town" in data["address"] and "state" in data[
"address"]:
loc = data["address"]["town"] + \
", " + data["address"]["state"]
else:
loc = data["display_name"]
except Exception:
qgsu.showUserAndLogMessage(
"",
"getVideoLocationInfo: failed to get address from reverse geocoding service.",
onlyLog=True)
location = [frameCenterLat, frameCenterLon, loc]
qgsu.showUserAndLogMessage(
"",
"Got Location: lon: " + str(frameCenterLon) + " lat: " +
str(frameCenterLat) + " location: " + str(loc),
onlyLog=True)
break
else:
qgsu.showUserAndLogMessage(
QCoreApplication.translate(
"QgsFmvUtils", "This video doesn't have Metadata ! : "))
except Exception as e:
qgsu.showUserAndLogMessage(
QCoreApplication.translate("QgsFmvUtils",
"Video info callback failed! : "),
str(e))
return location
def getVideoLocationInfo(videoPath,
islocal=False,
klv_folder=None,
klv_index=0):
""" Get basic location info about the video """
location = []
try:
if islocal:
dataFile = os.path.join(klv_folder, "0.0.klv")
f = open(dataFile, 'rb')
stdout_data = f.read()
else:
p = _spawn([
'-i', videoPath, '-ss', '00:00:00', '-to', '00:00:01', '-map',
'0:d:' + str(klv_index), '-f', 'data', '-'
])
stdout_data, _ = p.communicate()
# qgsu.showUserAndLogMessage("Video Loc info raw result", stdout_data, onlyLog=True)
if stdout_data == b'':
# qgsu.showUserAndLogMessage("Error interpreting klv data, metadata cannot be read.", "the parser did not recognize KLV data", level=QGis.Warning)
return
for packet in StreamParser(stdout_data):
if isinstance(packet, UnknownElement):
qgsu.showUserAndLogMessage(
"Error interpreting klv data, metadata cannot be read.",
"the parser did not recognize KLV data",
level=QGis.Warning)
continue
packet.MetadataList()
centerLat = packet.FrameCenterLatitude
centerLon = packet.FrameCenterLongitude
# Target maybe unavailable because of horizontal view
if centerLat is None and centerLon is None:
centerLat = packet.SensorLatitude
centerLon = packet.SensorLongitude
loc = "-"
if Reverse_geocoding_url != "":
try:
url = QUrl(
Reverse_geocoding_url.format(str(centerLat),
str(centerLon)))
request = QNetworkRequest(url)
reply = QgsNetworkAccessManager.instance().get(request)
loop = QEventLoop()
reply.finished.connect(loop.quit)
loop.exec_()
reply.finished.disconnect(loop.quit)
loop = None
result = reply.readAll()
data = json.loads(result.data())
if "village" in data["address"] and "state" in data[
"address"]:
loc = data["address"]["village"] + \
", " + data["address"]["state"]
elif "town" in data["address"] and "state" in data[
"address"]:
loc = data["address"]["town"] + \
", " + data["address"]["state"]
else:
loc = data["display_name"]
except Exception:
qgsu.showUserAndLogMessage(
"",
"getVideoLocationInfo: failed to get address from reverse geocoding service.",
onlyLog=True)
location = [centerLat, centerLon, loc]
qgsu.showUserAndLogMessage("",
"Got Location: lon: " + str(centerLon) +
" lat: " + str(centerLat) +
" location: " + str(loc),
onlyLog=True)
break
else:
qgsu.showUserAndLogMessage(
QCoreApplication.translate(
"QgsFmvUtils", "This video doesn't have Metadata ! : "))
except Exception as e:
qgsu.showUserAndLogMessage(
QCoreApplication.translate("QgsFmvUtils",
"Video info callback failed! : "),
str(e))
return location
