def uri_is_valid(uri):
"""Checks if the given uri is a valid uri (of type file://)
Will also check if the size is valid (> 0).
@param uri: The location to check
@type uri: C{URI}
"""
return (Gst.uri_is_valid(uri) and Gst.uri_get_protocol(uri) == "file"
and len(os.path.basename(Gst.uri_get_location(uri))) > 0)
def uri_is_valid(uri):
"""Checks if the specified URI is usable (of type file://).
Will also check if the size is valid (> 0).
Args:
uri (str): The location to check.
"""
return (Gst.uri_is_valid(uri) and Gst.uri_get_protocol(uri) == "file"
and len(os.path.basename(Gst.uri_get_location(uri))) > 0)
def uri_is_valid(uri):
"""Checks if the specified URI is usable (of type file://).
Will also check if the size is valid (> 0).
Args:
uri (str): The location to check.
"""
return (Gst.uri_is_valid(uri) and
Gst.uri_get_protocol(uri) == "file" and
len(os.path.basename(Gst.uri_get_location(uri))) > 0)
def uri_is_valid(uri):
"""Checks if the given uri is a valid uri (of type file://)
Will also check if the size is valid (> 0).
@param uri: The location to check
@type uri: C{URI}
"""
return (Gst.uri_is_valid(uri) and
Gst.uri_get_protocol(uri) == "file" and
len(os.path.basename(Gst.uri_get_location(uri))) > 0)
def do_save_to_uri(self, timeline, uri, overwrite):
if not Gst.uri_is_valid(uri) or Gst.uri_get_protocol(uri) != "file":
Gst.error("Protocol not supported for file: %s" % uri)
return False
with tempfile.NamedTemporaryFile(suffix=".xges") as tmpxges:
timeline.get_asset().save(timeline, "file://" + tmpxges.name, None, overwrite)
linker = otio.media_linker.MediaLinkingPolicy.ForceDefaultLinker
otio_timeline = otio.adapters.read_from_file(tmpxges.name, "xges", media_linker_name=linker)
location = Gst.uri_get_location(uri)
out_adapter = otio.adapters.from_filepath(location)
otio.adapters.write_to_file(otio_timeline, Gst.uri_get_location(uri), out_adapter.name)
return True
def element_make_from_uri(uri, type_=Gst.URIType.SRC):
"""Creates Gst element from URI locator
"""
if not Gst.uri_is_valid(uri):
raise Exception("Invalid URI {}".format(uri))
proto = Gst.uri_get_protocol(uri)
if proto == "tcp":
u = Gst.uri_from_string(uri)
return elmake("tcpserversrc", host=u.get_host(), port=u.get_port())
if not Gst.uri_protocol_is_supported(type_, proto):
raise Exception("Protocol {} not supported, URI {}".format(proto, uri))
return Gst.Element.make_from_uri(type_, uri, None)
def do_can_load_uri(self, uri):
try:
if not Gst.uri_is_valid(uri) or Gst.uri_get_protocol(uri) != "file":
return False
except GLib.Error as e:
Gst.error(str(e))
return False
if uri.endswith(".xges"):
return False
try:
return otio.adapters.from_filepath(Gst.uri_get_location(uri)) is not None
except Exception as e:
Gst.info("Could not load %s -> %s" % (uri, e))
return False
def get_uri(source):
"""
Check a media source as a valid file or uri and return the proper uri
"""
import gi
gi.require_version('Gst', '1.0')
from gi.repository import Gst
src_info = source_info(source)
if src_info['is_file']: # Is this a file?
return get_uri(src_info['uri'])
elif Gst.Uri.is_valid(source): # Is this a valid URI source for Gstreamer
uri_protocol = Gst.uri_get_protocol(source)
if Gst.Uri.protocol_is_supported(Gst.URIType.SRC, uri_protocol):
return source
else:
raise IOError('Invalid URI source for Gstreamer')
else:
raise IOError('Failed getting uri for path %s: no such file' % source)
