def get_compatible_sink_pad(factoryname, caps):
"""
Returns the pad name of a (request) pad from factoryname which is
compatible with the given caps.
"""
factory = gst.registry_get_default().lookup_feature(factoryname)
if factory == None:
log.warning("encode", "%s is not a valid factoryname", factoryname)
return None
res = []
sinkpads = [
x for x in factory.get_static_pad_templates()
if x.direction == gst.PAD_SINK
]
for p in sinkpads:
c = p.get_caps()
log.log("encode", "sinkcaps %s", c.to_string())
inter = caps.intersect(c)
log.log("encode", "intersection %s", inter.to_string())
if inter:
res.append(p.name_template)
if len(res) > 0:
return res[0]
return None
def get_compatible_sink_caps(factoryname, caps):
"""
Returns the compatible caps between 'caps' and the sink pad caps of 'factoryname'
"""
log.log("encode", "factoryname : %s , caps : %s", factoryname,
caps.to_string())
factory = gst.registry_get_default().lookup_feature(factoryname)
if factory == None:
log.warning("encode", "%s is not a valid factoryname", factoryname)
return None
res = []
sinkcaps = [
x.get_caps() for x in factory.get_static_pad_templates()
if x.direction == gst.PAD_SINK
]
for c in sinkcaps:
log.log("encode", "sinkcaps %s", c.to_string())
inter = caps.intersect(c)
log.log("encode", "intersection %s", inter.to_string())
if inter:
res.append(inter)
if len(res) > 0:
return res[0]
return None
def get_compatible_sink_pad(factoryname, caps):
"""
Returns the pad name of a (request) pad from factoryname which is
compatible with the given caps.
"""
factory = gst.registry_get_default().lookup_feature(factoryname)
if factory == None:
log.warning("encode", "%s is not a valid factoryname", factoryname)
return None
res = []
sinkpads = [x for x in factory.get_static_pad_templates() if x.direction == gst.PAD_SINK]
for p in sinkpads:
c = p.get_caps()
log.log("encode", "sinkcaps %s", c.to_string())
inter = caps.intersect(c)
log.log("encode", "intersection %s", inter.to_string())
if inter:
res.append(p.name_template)
if len(res) > 0:
return res[0]
return None
def get_compatible_sink_caps(factoryname, caps):
"""
Returns the compatible caps between 'caps' and the sink pad caps of 'factoryname'
"""
log.log("encode", "factoryname : %s , caps : %s", factoryname, caps.to_string())
factory = gst.registry_get_default().lookup_feature(factoryname)
if factory == None:
log.warning("encode", "%s is not a valid factoryname", factoryname)
return None
res = []
sinkcaps = [x.get_caps() for x in factory.get_static_pad_templates() if x.direction == gst.PAD_SINK]
for c in sinkcaps:
log.log("encode", "sinkcaps %s", c.to_string())
inter = caps.intersect(c)
log.log("encode", "intersection %s", inter.to_string())
if inter:
res.append(inter)
if len(res) > 0:
return res[0]
return None
def make_property_widget(unused_element, prop, value=None):
""" Creates a Widget for the given element property """
# FIXME : implement the case for flags
type_name = gobject.type_name(prop.value_type.fundamental)
if value == None:
value = prop.default_value
if (type_name == 'gchararray'):
widget = gtk.Entry()
widget.set_text(str(value))
elif (type_name in [
'guint64', 'gint64', 'guint', 'gint', 'gfloat', 'gdouble', 'gulong'
]):
widget = gtk.SpinButton()
if type_name == 'gint':
minimum, maximum = (-(2**31), 2**31 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'guint':
minimum, maximum = (0, 2**32 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'gint64':
minimum, maximum = (-(2**63), 2**63 - 1)
widget.set_increments(1.0, 10.0)
elif type_name in ['gulong', 'guint64']:
minimum, maximum = (0, 2**64 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'gfloat' or type_name == 'gdouble':
minimum, maximum = (float("-Infinity"), float("Infinity"))
widget.set_increments(0.00001, 0.01)
widget.set_digits(5)
if hasattr(prop, "minimum"):
minimum = prop.minimum
if hasattr(prop, "maximum"):
maximum = prop.maximum
widget.set_range(minimum, maximum)
widget.props.climb_rate = 0.01 * abs(
min(maximum, 1000) - max(minimum, -1000))
widget.set_value(float(value))
elif (type_name == 'gboolean'):
widget = gtk.CheckButton()
if value:
widget.set_active(True)
elif (type_name == 'GEnum'):
model = gtk.ListStore(gobject.TYPE_STRING, prop.value_type)
widget = gtk.ComboBox(model)
cell = gtk.CellRendererText()
widget.pack_start(cell, True)
widget.add_attribute(cell, 'text', 0)
idx = 0
for key, val in prop.enum_class.__enum_values__.iteritems():
log.log("gstwidget", "adding %s / %s", val.value_name, val)
model.append([val.value_name, val])
if val == value or key == value:
selected = idx
idx = idx + 1
widget.set_active(selected)
else:
widget = gtk.Label(type_name)
widget.set_alignment(1.0, 0.5)
if not prop.flags & gobject.PARAM_WRITABLE:
widget.set_sensitive(False)
return widget
def make_property_widget(unused_element, prop, value=None):
""" Creates a Widget for the given element property """
# FIXME : implement the case for flags
type_name = gobject.type_name(prop.value_type.fundamental)
if value == None:
value = prop.default_value
if (type_name == 'gchararray'):
widget = gtk.Entry()
widget.set_text(str(value))
elif (type_name in ['guint64', 'gint64', 'guint', 'gint', 'gfloat',
'gdouble', 'gulong']):
widget = gtk.SpinButton()
if type_name == 'gint':
minimum, maximum = (-(2**31), 2**31 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'guint':
minimum, maximum = (0, 2**32 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'gint64':
minimum, maximum = (-(2**63), 2**63 - 1)
widget.set_increments(1.0, 10.0)
elif type_name in ['gulong', 'guint64']:
minimum, maximum = (0, 2**64 - 1)
widget.set_increments(1.0, 10.0)
elif type_name == 'gfloat' or type_name == 'gdouble':
minimum, maximum = (float("-Infinity"), float("Infinity"))
widget.set_increments(0.00001, 0.01)
widget.set_digits(5)
if hasattr(prop, "minimum"):
minimum = prop.minimum
if hasattr(prop, "maximum"):
maximum = prop.maximum
widget.set_range(minimum, maximum)
widget.props.climb_rate = 0.01 * abs(min(maximum, 1000) -
max(minimum, -1000))
widget.set_value(float(value))
elif (type_name == 'gboolean'):
widget = gtk.CheckButton()
if value:
widget.set_active(True)
elif (type_name == 'GEnum'):
model = gtk.ListStore(gobject.TYPE_STRING, prop.value_type)
widget = gtk.ComboBox(model)
cell = gtk.CellRendererText()
widget.pack_start(cell, True)
widget.add_attribute(cell, 'text', 0)
idx = 0
for key, val in prop.enum_class.__enum_values__.iteritems():
log.log("gstwidget", "adding %s / %s", val.value_name, val)
model.append([val.value_name, val])
if val == value or key == value:
selected = idx
idx = idx + 1
widget.set_active(selected)
else:
widget = gtk.Label(type_name)
widget.set_alignment(1.0, 0.5)
if not prop.flags & gobject.PARAM_WRITABLE:
widget.set_sensitive(False)
return widget
