def writeDefaultValkkaFSConfig(self):
self.valkkafs_collection.new(
ValkkaFSConfigRow,
{
# "dirname" : default.valkkafs_config["dirname"], # not written to db for the moment
"n_blocks": default.get_valkkafs_config()["n_blocks"],
"blocksize": default.get_valkkafs_config()["blocksize"],
"fs_flavor": default.get_valkkafs_config()["fs_flavor"],
"record": default.get_valkkafs_config()["record"],
"partition_uuid":
default.get_valkkafs_config()["partition_uuid"]
})
def writeDefaultValkkaFSConfig(self):
# TODO: when ValkkaFSConfigRow is changed
# there should be no need to change the column names everywhere
# => ValkkaFSConfigRow should define some default..
# (it should be the only place for "ground truth")
self.valkkafs_collection.new(
ValkkaFSConfigRow,
{
# "dirname" : default.valkkafs_config["dirname"], # not written to db for the moment
"n_blocks": default.get_valkkafs_config()["n_blocks"],
"blocksize": default.get_valkkafs_config()["blocksize"],
#"fs_flavor" : default.get_valkkafs_config()["fs_flavor"],
#"record" : default.get_valkkafs_config()["record"],
#"partition_uuid" : default.get_valkkafs_config()["partition_uuid"]
})
def openValkka(self):
self.cpu_scheme = CPUScheme()
# singleton.data_model.camera_collection
try:
memory_config = next(singleton.data_model.config_collection.get({"classname" : MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
singleton.data_model.writeDefaultMemoryConfig()
memory_config = default.get_memory_config()
try:
valkkafs_config = next(singleton.data_model.valkkafs_collection.get({"classname" : ValkkaFSConfigRow.__name__}))
except StopIteration:
print(pre, "Using default valkkafs config")
singleton.data_model.writeDefaultValkkaFSConfig()
valkkafs_config = default.get_valkkafs_config()
n_frames = round(memory_config["msbuftime"] * default.fps / 1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores = -1)
self.gpu_handler = GPUHandler(
n_720p = memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p = memory_config["n_1080p"] * n_frames,
n_1440p = memory_config["n_1440p"] * n_frames,
n_4K = memory_config["n_4K"] * n_frames,
msbuftime = memory_config["msbuftime"],
verbose = False,
cpu_scheme = self.cpu_scheme
)
self.livethread = LiveThread(
name = "live_thread",
verbose = False,
affinity = self.cpu_scheme.getLive()
)
self.usbthread = USBDeviceThread(
name = "usb_thread",
verbose = False,
affinity = self.cpu_scheme.getUSB()
)
# see datamodel.row.ValkkaFSConfigRow
blocksize = valkkafs_config["blocksize"]
n_blocks = valkkafs_config["n_blocks"]
fs_flavor = valkkafs_config["fs_flavor"]
record = valkkafs_config["record"]
# TODO: activate this if ValkkaFS changed in config!
if fs_flavor == "file":
partition_uuid = None
else:
partition_uuid = valkkafs_config["partition_uuid"]
create_new_fs = False
if self.valkkafs is None: # first time
create_new_fs = False # try to load initially from disk
else:
print("openValkka: checking ValkkaFS")
create_new_fs = not self.valkkafs.is_same( # has changed, so must recreate
partition_uuid = partition_uuid, # None or a string
blocksize = blocksize * 1024*1024,
n_blocks = n_blocks
)
if create_new_fs: print("openValkka: ValkkaFS changed!")
if not create_new_fs: # let's try to load it
print("openValkka: trying to load ValkkaFS")
try:
self.valkkafs = ValkkaFS.loadFromDirectory(
dirname = singleton.valkkafs_dir.get()
)
except ValkkaFSLoadError as e:
print("openValkka: loading ValkkaFS failed with", e)
create_new_fs = True # no luck, must recreate
if create_new_fs:
print("openValkka: (re)create ValkkaFS")
self.valkkafs = ValkkaFS.newFromDirectory(
dirname = singleton.valkkafs_dir.get(),
blocksize = valkkafs_config["blocksize"] * 1024*1024, # MB
n_blocks = valkkafs_config["n_blocks"],
partition_uuid = partition_uuid,
verbose = True
)
# to keep things consistent..
singleton.data_model.valkkafs_collection.new(
ValkkaFSConfigRow,
{
# "dirname" : default.valkkafs_config["dirname"], # not written to db for the moment
"n_blocks" : default.get_valkkafs_config()["n_blocks"],
"blocksize" : valkkafs_config["blocksize"],
"fs_flavor" : valkkafs_config["fs_flavor"],
"record" : record,
"partition_uuid" : partition_uuid
})
"""
else:
self.valkkafs = None
"""
# if no recording selected, set self.valkkafsmanager = None
self.valkkafsmanager = ValkkaFSManager(
self.valkkafs,
write = record, # True or False
read = record,
cache = record
)
self.playback_controller = PlaybackController(valkkafs_manager = self.valkkafsmanager)
self.filterchain_group = LiveFilterChainGroup(
datamodel = singleton.data_model,
livethread = self.livethread,
usbthread = self.usbthread,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group.read()
if record:
print("openValkka: ValkkaFS **RECORDING ACTIVATED**")
self.filterchain_group.setRecording(RecordType.always, self.valkkafsmanager)
# self.filterchain_group.update() # TODO: use this once fixed
self.filterchain_group_play = PlaybackFilterChainGroup(
datamodel = singleton.data_model,
valkkafsmanager
= self.valkkafsmanager,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group_play.read()
try:
from valkka.mvision import multiprocess
except ImportError:
pass
"""
class ValkkaFSConfigRow(Row):
def getValkkaFSDevices():
lis = [] # tuples of (name, key)
for key, value in findBlockDevices().items():
# they look like this: {'27f5e5d8-9e20-4bc1-84aa-6a3cbab498c8': ('/dev/sdc1', 500107862016)}
lis.append((
value[0] + " (" + str(int(value[1] / 1024 / 1024)) +
" MB)", # shown in dropdown
key # data to be saved
))
return lis
"""
"dirname" : singleton.valkkafs_dir.get(),
"n_blocks" : 10,
"blocksize" : 10
"""
columns = [
# TODO: for valkkafs metadata directory: (1) add a non-editable column
ColumnSpec(CheckBoxColumn,
key_name="record",
label_name="Activate recording & playback",
def_value=False),
ColumnSpec(
SpinBoxIntegerColumn,
key_name="blocksize",
label_name="Blocksize (MB)",
min_value=1,
max_value=1024 * 1024 * 1024, # 1 GB
def_value=default.get_valkkafs_config()["blocksize"]),
ColumnSpec(SpinBoxIntegerColumn,
key_name="n_blocks",
label_name="Number of Blocks",
min_value=5,
max_value=999999999,
def_value=default.get_valkkafs_config()["n_blocks"]),
# Calculate Total Size (MB)
ColumnSpec(ConstantRadioButtonColumn,
key_name="fs_flavor",
label_name="ValkkaFS type",
list=[("Normal file", "file"),
("Dedicated block device", "valkkafs")]),
ColumnSpec(ConstantComboBoxColumn,
key_name="partition_uuid",
label_name="Available Devices",
callback=getValkkaFSDevices)
]
# TODO:
# Actions (buttons): format, save, cancel (exit without applying changes)
def makeWidget(self):
"""Subclassed from Row : custom form. Add a total disk space field.
"""
self.widget = FormWidget()
self.lay = QtWidgets.QGridLayout(self.widget)
cc = 0
self.placeWidget(cc, "record")
cc += 1
self.placeWidget(cc, "blocksize")
cc += 1
self.placeWidget(cc, "n_blocks")
cc += 1
self.label_total_size = QtWidgets.QLabel("Total Size (MB)",
self.widget)
self.label_total_size_value = QtWidgets.QLabel("", self.widget)
self.placeWidgetPair(
cc, (self.label_total_size, self.label_total_size_value))
cc += 1
self.placeWidget(cc, "fs_flavor")
cc += 1
self.placeWidget(cc, "partition_uuid")
cc += 1
self.connectNotifications()
def fs_size_changed():
total_size_mb = self["blocksize"].getValue(
) * self["n_blocks"].getValue()
self.label_total_size_value.setText(str(total_size_mb))
def block_device_slot():
self["partition_uuid"].updateWidget()
n_devs = self["partition_uuid"].widget.count() # QComboBox.count()
if n_devs < 1:
self["fs_flavor"]["file"].setChecked(True)
self["blocksize"].widget.valueChanged.connect(fs_size_changed)
self["n_blocks"].widget.valueChanged.connect(fs_size_changed)
self["fs_flavor"]["valkkafs"].clicked.connect(block_device_slot)
fs_size_changed()
block_device_slot()
"""
def openValkka(self):
self.cpu_scheme = CPUScheme()
# singleton.data_model.camera_collection
try:
memory_config = next(
singleton.data_model.config_collection.get(
{"classname": MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
singleton.data_model.writeDefaultMemoryConfig()
memory_config = default.get_memory_config()
try:
valkkafs_config = next(
singleton.data_model.valkkafs_collection.get(
{"classname": ValkkaFSConfigRow.__name__}))
except StopIteration:
print(pre, "Using default valkkafs config")
singleton.data_model.writeDefaultValkkaFSConfig()
valkkafs_config = default.get_valkkafs_config()
n_frames = round(
memory_config["msbuftime"] * default.fps /
1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores=-1)
self.gpu_handler = GPUHandler(
n_720p=memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p=memory_config["n_1080p"] * n_frames,
n_1440p=memory_config["n_1440p"] * n_frames,
n_4K=memory_config["n_4K"] * n_frames,
msbuftime=memory_config["msbuftime"],
verbose=False,
cpu_scheme=self.cpu_scheme)
self.livethread = LiveThread(name="live_thread",
verbose=False,
affinity=self.cpu_scheme.getLive())
self.usbthread = USBDeviceThread(name="usb_thread",
verbose=False,
affinity=self.cpu_scheme.getUSB())
# see datamodel.row.ValkkaFSConfigRow
blocksize = valkkafs_config["blocksize"]
n_blocks = valkkafs_config["n_blocks"]
#fs_flavor = valkkafs_config["fs_flavor"]
#record = valkkafs_config["record"]
self.filterchain_group = LiveFilterChainGroup(
datamodel=singleton.data_model,
livethread=self.livethread,
usbthread=self.usbthread,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group.read()
# TODO: RecordType..?
if singleton.use_playback:
print("openValkka: ValkkaFS **PLAYBACK & RECORDING ACTIVATED**")
# ValkkaSingleFSHandler:
# directory handling and valkkafs <-> stream id association
self.valkka_fs_handler = ValkkaSingleFSHandler(
basedir=singleton.valkkafs_dir.get(),
blocksize=blocksize * 1024 * 1024, # MB
n_blocks=n_blocks)
if self.valkkafs_modified:
print("openValkka: removing all recorded streams")
self.valkka_fs_handler.clear()
self.valkka_fs_handler.wipe()
for row in singleton.data_model.camera_collection.get():
_id = row["_id"] # get stream id
slot = row["slot"]
classname = row["classname"]
if classname != "EmptyRow":
# print(">", row)
self.valkka_fs_handler.load(_id)
# ..creates new valkka if doesn't exist
self.valkkafsmanager = ValkkaFSManager(
self.valkka_fs_handler.tolist())
self.valkkafsmanager.start()
#self.filterchain_group.setRecording(RecordType.always, self.valkkafsmanager)# OLD
# self.filterchain_group: source for live stream
# self.filterchain_group_play: sink where the playback/saved stream should
# be sent
self.filterchain_group_play = PlaybackFilterChainGroup(
datamodel=singleton.data_model,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group_play.read()
# print("openValkka: self.filterchain_group_play: len=", len(self.filterchain_group_play))
# connect live & playback filterchains with the manager
for valkkafs, inputfilter in self.valkkafsmanager.iterateFsInput():
_id = self.valkka_fs_handler.getId(valkkafs)
if _id is None:
print("WARNING: main: could not get id for", valkkafs)
continue
playback_fc = self.filterchain_group_play.get(_id=_id)
if playback_fc is None:
print("WARNING: main: could not find _id", _id,\
"in playback filterchain group")
"""
for chain in self.filterchain_group_play.chains:
print(">>", chain)
for key, getter in chain.iterateGetters():
print(">", key, getter())
"""
continue
live_fc = self.filterchain_group.get(_id=_id)
if live_fc is None:
print("WARNING: main: could not find _id", _id,\
"in live filterchain group")
continue
self.valkkafsmanager.map_(
valkkafs=valkkafs,
# read & cached stream is sent/output'd here:
framefilter=playback_fc.getInputFilter(),
write_slot=live_fc.slot,
read_slot=playback_fc.slot,
_id=_id)
# frames coming from the live stream are sent to
# valkkafsmanager's correct inputfilter
# (there is one corresponding to each valkkafs)
live_fc.connectRecTo(inputfilter, RecordType.always)
# TODO: disconnect at exit..?
# self.filterchain_group.update() # TODO: use this once fixed
self.playback_controller = PlaybackController(
valkkafs_manager=self.valkkafsmanager)
