def testAvailable(self):
# starts empty
self.assertEquals(self.adapter.available(), 0)
self.assertEquals(self.adapter.available_fast(), 0)
# let's give it 4 bytes
self.adapter.push(gst.Buffer("1234"))
self.assertEquals(self.adapter.available_fast(), 4)
# let's give it another 5 bytes
self.adapter.push(gst.Buffer("56789"))
# we now have 9 bytes
self.assertEquals(self.adapter.available(), 9)
# but can only do a fast take of 4 bytes (the first buffer)
self.assertEquals(self.adapter.available_fast(), 4)
def testFalseProbe(self):
id = self.src.add_buffer_probe(self._probe_handler, False)
self.buffer = gst.Buffer()
self.assertEquals(self.buffer.__grefcount__, 1)
self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
self.assertEquals(self.buffer.__grefcount__, 1)
self.src.remove_buffer_probe(id)
def testTrueProbe(self):
id = self.src.add_buffer_probe(self._probe_handler, True)
self.buffer = gst.Buffer()
self.assertEquals(self.buffer.__grefcount__, 1)
self.assertEquals(self.src.push(self.buffer), gst.FLOW_NOT_LINKED)
self.assertEquals(self.buffer.__grefcount__, 1)
self.src.remove_buffer_probe(id)
def testTake(self):
self.adapter.push(gst.Buffer("0123456789"))
self.assertEquals(self.adapter.available(), 10)
s = self.adapter.take(5)
self.assertEquals(s, "01234")
self.assertEquals(self.adapter.available(), 5)
def testNoProbe(self):
self.buffer = gst.Buffer()
self.assertEquals(self.buffer.__grefcount__, 1)
self.assertEquals(self.src.push(self.buffer), gst.FLOW_NOT_LINKED)
# pushing it takes a ref in the python wrapper to keep buffer
# alive afterwards; but the core unrefs the ref it receives
self.assertEquals(self.buffer.__grefcount__, 1)
def testBufferCaps(self):
buffer = gst.Buffer()
caps = gst.caps_from_string('foo/blah')
gst.info("before settings caps")
buffer.set_caps(caps)
gst.info("after settings caps")
c = buffer.get_caps()
gst.info("after getting caps")
self.assertEquals(caps, c)
def testAttrTimestamp(self):
buffer = gst.Buffer()
assert hasattr(buffer, "timestamp")
assert isinstance(buffer.timestamp, long)
assert buffer.timestamp == gst.CLOCK_TIME_NONE
buffer.timestamp = 0
assert buffer.timestamp == 0
buffer.timestamp = 2**64 - 1
assert buffer.timestamp == 2**64 - 1
def testAttrOffset_end(self):
buffer = gst.Buffer()
assert hasattr(buffer, "offset_end")
assert isinstance(buffer.offset_end, long)
assert buffer.offset_end == gst.CLOCK_TIME_NONE
buffer.offset_end = 0
assert buffer.offset_end == 0
buffer.offset_end = 2**64 - 1
assert buffer.offset_end == 2**64 - 1
def testBufferCopyOnWrite(self):
s = 'test_vector'
buffer = gst.Buffer(s)
sub = buffer.create_sub(0, buffer.size)
self.assertEquals(sub.size, buffer.size)
out = sub.copy_on_write()
self.assertEquals(out.size, sub.size)
assert str(out) == str(buffer)
out[5] = 'w'
assert str(out) == 'test_wector'
def testAttrDuration(self):
buffer = gst.Buffer()
assert hasattr(buffer, "duration")
assert isinstance(buffer.duration, long)
assert buffer.duration == gst.CLOCK_TIME_NONE
buffer.duration = 0
assert buffer.duration == 0
buffer.duration = 2**64 - 1
assert buffer.duration == 2**64 - 1
def testCapsContainingMiniObjects(self):
# buffer contains hex encoding of ascii 'abcd'
caps = gst.Caps("video/x-raw-yuv, buf=(buffer)61626364")
buf = caps[0]['buf']
assert isinstance(buf, gst.Buffer)
assert buf.data == "abcd"
buf = gst.Buffer("1234")
caps[0]['buf2'] = buf
buf2 = caps[0]['buf2']
assert buf2 == buf
def testBufferCreateSub(self):
s = ''
for i in range(64):
s += '%02d' % i
buffer = gst.Buffer(s)
self.assertEquals(len(buffer), 128)
sub = buffer.create_sub(16, 16)
self.assertEquals(sub.size, 16)
self.assertEquals(sub.data, buffer.data[16:32])
self.assertEquals(sub.offset, gst.CLOCK_TIME_NONE)
def testFlush(self):
self.adapter.push(gst.Buffer("0123456789"))
self.assertEquals(self.adapter.available(), 10)
self.adapter.flush(5)
self.assertEquals(self.adapter.available(), 5)
# it flushed the first 5 bytes
self.assertEquals(self.adapter.peek(5), "56789")
self.adapter.flush(5)
self.assertEquals(self.adapter.available(), 0)
def testProbeLink(self):
id = self.src.add_buffer_probe(self._probe_handler)
self.buffer = gst.Buffer()
self.assertEquals(self.buffer.__grefcount__, 1)
gst.debug('pushing buffer on linked pad, no probe')
self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
gst.debug('pushed buffer on linked pad, no probe')
# one refcount is held by our scope, another is held on
# self.buffers through _chain_func
self.assertEquals(self.buffer.__grefcount__, 2)
self.assertEquals(len(self.buffers), 1)
self.buffers = None
self.assertEquals(self.buffer.__grefcount__, 1)
def testPeek(self):
self.adapter.push(gst.Buffer("0123456789"))
# let's peek at 5 bytes
b = self.adapter.peek(5)
# it can return more than 5 bytes
self.assert_(len(b) >= 5)
self.assertEquals(b, "01234")
# it's still 10 bytes big
self.assertEquals(self.adapter.available(), 10)
# if we try to peek more than what's available, we'll have None
self.assertEquals(self.adapter.peek(11), None)
def testNoProbe(self):
self.buffer = gst.Buffer()
gst.debug('created new buffer %r, id %x' %
(self.buffer, id(self.buffer)))
self.assertEquals(self.buffer.__grefcount__, 1)
gst.debug('pushing buffer on linked pad, no probe')
self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
gst.debug('pushed buffer on linked pad, no probe')
# one refcount is held by our scope, another is held on
# self.buffers through _chain_func
self.assertEquals(self.buffer.__grefcount__, 2)
self.assertEquals(len(self.buffers), 1)
self.buffers = None
self.assertEquals(self.buffer.__grefcount__, 1)
def testBufferclip(self):
assert hasattr(gst.audio, "buffer_clip")
# create a segment
segment = gst.Segment()
gst.debug("Created the new segment")
# we'll put a new segment of 500ms to 1000ms
segment.set_newsegment(False, 1.0, gst.FORMAT_TIME, 0, -1, 0)
gst.debug("Initialized the new segment")
# create a new dummy buffer
b = gst.Buffer("this is a really useless line")
gst.debug("Created the buffer")
# clip... which shouldn't do anything
b2 = gst.audio.buffer_clip(b, segment, 44100, 8)
gst.debug("DONE !")
def testCallbackFlush(self):
# check that the same block callback can be called more than once (weird
# test but it was broken)
def blocked_cb(pad, blocked):
pad.push_event(gst.event_new_flush_start())
pad = gst.Pad('src', gst.PAD_SRC)
pad.set_active(True)
pad.set_blocked_async(True, blocked_cb)
for i in xrange(10):
buf = gst.Buffer('ciao')
pad.push(buf)
pad.push_event(gst.event_new_flush_stop())
def testBufferFlagIsSet(self):
buffer = gst.Buffer()
# Off by default
assert not buffer.flag_is_set(gst.BUFFER_FLAG_READONLY)
# Try switching on and off
buffer.flag_set(gst.BUFFER_FLAG_READONLY)
assert buffer.flag_is_set(gst.BUFFER_FLAG_READONLY)
buffer.flag_unset(gst.BUFFER_FLAG_READONLY)
assert not buffer.flag_is_set(gst.BUFFER_FLAG_READONLY)
# Try switching on and off
buffer.flag_set(gst.BUFFER_FLAG_IN_CAPS)
assert buffer.flag_is_set(gst.BUFFER_FLAG_IN_CAPS)
buffer.flag_unset(gst.BUFFER_FLAG_IN_CAPS)
assert not buffer.flag_is_set(gst.BUFFER_FLAG_IN_CAPS)
def testTrueProbe(self):
probe_id = self.src.add_buffer_probe(self._probe_handler, True)
self.buffer = gst.Buffer()
self.assertEquals(self.buffer.__grefcount__, 1)
self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
# one refcount is held by our scope, another is held on
# self.buffers through _chain_func
self.assertEquals(self.buffer.__grefcount__, 2)
# they are not the same Python object ...
self.failIf(self.buffer is self.buffers[0])
self.failIf(id(self.buffer) == id(self.buffers[0]))
# ... but they wrap the same GstBuffer
self.failUnless(self.buffer == self.buffers[0])
self.assertEquals(repr(self.buffer), repr(self.buffers[0]))
self.src.remove_buffer_probe(probe_id)
self.assertEquals(len(self.buffers), 1)
self.buffers = None
self.assertEquals(self.buffer.__grefcount__, 1)
def testTypeFind(self):
def application_awesome_type_find(typefind, arg1, arg2):
self.failUnlessEqual(arg1, 'arg1')
self.failUnlessEqual(arg2, 'arg2')
data = typefind.peek(0, 5)
self.failUnless(data == '', 'peek out of length??')
data = typefind.peek(0, 0)
self.failUnless(data == '', '0 peek??')
data = typefind.peek(3, 1)
self.failUnless(data == 'M')
data = typefind.peek(0, 4)
self.failUnless(data == 'AWSM')
typefind.suggest(gst.TYPE_FIND_MAXIMUM,
gst.Caps('application/awesome'))
res = gst.type_find_register('application/awesome', gst.RANK_PRIMARY,
application_awesome_type_find, ['.twi'],
gst.Caps('application/awesome'), 'arg1',
'arg2')
self.failUnless(res, 'type_find_register failed')
factory = None
factories = gst.type_find_factory_get_list()
for typefind_factory in factories:
if typefind_factory.get_name() == 'application/awesome':
factory = typefind_factory
break
self.failUnless(factory is not None)
obj = gst.Pad('src', gst.PAD_SRC)
buffer = gst.Buffer('AWSM')
caps, probability = gst.type_find_helper_for_buffer(obj, buffer)
self.failUnlessEqual(str(caps), 'application/awesome')
self.failUnlessEqual(probability, gst.TYPE_FIND_MAXIMUM)
def testCallbackRefcount(self):
def blocked_cb(pad, blocked):
pad.set_blocked_async(False, unblocked_cb)
def unblocked_cb(pad, blocked):
pass
cb_refcount = sys.getrefcount(blocked_cb)
# sys.getrefcount() returns refcount + 1
self.assertEquals(cb_refcount, 2)
pad = gst.Pad('src', gst.PAD_SRC)
pad.set_active(True)
pad.set_blocked_async(True, blocked_cb)
# set_blocked_async refs the callback
self.assertEquals(sys.getrefcount(blocked_cb), 3)
buf = gst.Buffer('ciao')
pad.push(buf)
# in blocked_cb() we called set_blocked_async() with a different
# callback, so blocked_cb() should have been unreffed
cb_refcount_after = sys.getrefcount(blocked_cb)
self.assertEquals(sys.getrefcount(blocked_cb), cb_refcount)
def testWrongEvent(self):
buffer = gst.Buffer()
self.assertRaises(TypeError, self.sink.send_event, buffer)
number = 1
self.assertRaises(TypeError, self.sink.send_event, number)
def testBufferSpan(self):
buffer1 = gst.Buffer('foo')
buffer2 = gst.Buffer('bar')
spaned_buffer = buffer1.span(0L, buffer2, 6L)
assert str(spaned_buffer) == 'foobar'
def testBufferJoin(self):
buffer1 = gst.Buffer('foo')
buffer2 = gst.Buffer('bar')
joined_buffer = buffer1.merge(buffer2)
assert str(joined_buffer) == 'foobar'
def testBufferMerge(self):
buffer1 = gst.Buffer('foo')
buffer2 = gst.Buffer('bar')
merged_buffer = buffer1.merge(buffer2)
assert str(merged_buffer) == 'foobar'
def testBufferSize(self):
test_string = 'a little string'
buffer = gst.Buffer(test_string)
assert len(buffer) == len(test_string)
assert hasattr(buffer, 'size')
assert buffer.size == len(buffer)
def testBufferStrNull(self):
test_string = 't\0e\0s\0t\0'
buffer = gst.Buffer(test_string)
assert str(buffer) == test_string
def testBufferAlloc(self):
bla = 'mooooooo'
buffer = gst.Buffer(bla + '12345')
gc.collect()
assert str(buffer) == 'mooooooo12345'
def testBufferStr(self):
buffer = gst.Buffer('test')
assert str(buffer) == 'test'
