def test_batch_feature(self):
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common()
feat_extract = self.feature_extraction_class(**self.feat_extract_dict)
input_name = feat_extract.model_input_names[0]
processed_features = BatchFeature({input_name: speech_inputs})
self.assertTrue(
all(
len(x) == len(y) for x, y in zip(
speech_inputs, processed_features[input_name])))
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common(
equal_length=True)
processed_features = BatchFeature({input_name: speech_inputs},
tensor_type="np")
batch_features_input = processed_features[input_name]
if len(batch_features_input.shape) < 3:
batch_features_input = batch_features_input[:, :, None]
self.assertTrue(batch_features_input.shape == (
self.feat_extract_tester.batch_size, len(speech_inputs[0]),
self.feat_extract_tester.feature_size))
def test_padding_accepts_tensors_tf(self):
feat_extract = self.feature_extraction_class(**self.feat_extract_dict)
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common()
input_name = feat_extract.model_input_names[0]
processed_features = BatchFeature({input_name: speech_inputs})
input_np = feat_extract.pad(processed_features, padding="longest", return_tensors="np")[input_name]
input_tf = feat_extract.pad(processed_features, padding="longest", return_tensors="tf")[input_name]
self.assertTrue(abs(input_np.astype(np.float32).sum() - input_tf.numpy().astype(np.float32).sum()) < 1e-2)
def test_attention_mask(self):
feat_dict = self.feat_extract_dict
feat_dict["return_attention_mask"] = True
feat_extract = self.feature_extraction_class(**feat_dict)
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common()
input_lenghts = [len(x) for x in speech_inputs]
input_name = feat_extract.model_input_names[0]
processed = BatchFeature({input_name: speech_inputs})
processed = feat_extract.pad(processed, padding="longest", return_tensors="np")
self.assertIn("attention_mask", processed)
self.assertListEqual(list(processed.attention_mask.shape), list(processed[input_name].shape[:2]))
self.assertListEqual(processed.attention_mask.sum(-1).tolist(), input_lenghts)
def test_attention_mask_with_truncation(self):
feat_dict = self.feat_extract_dict
feat_dict["return_attention_mask"] = True
feat_extract = self.feature_extraction_class(**feat_dict)
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common()
input_lenghts = [len(x) for x in speech_inputs]
input_name = feat_extract.model_input_names[0]
processed = BatchFeature({input_name: speech_inputs})
max_length = min(input_lenghts)
processed_pad = feat_extract.pad(
processed, padding="max_length", max_length=max_length, truncation=True, return_tensors="np"
)
self.assertIn("attention_mask", processed_pad)
self.assertListEqual(
list(processed_pad.attention_mask.shape), list((processed_pad[input_name].shape[0], max_length))
)
self.assertListEqual(
processed_pad.attention_mask[:, :max_length].sum(-1).tolist(), [max_length for x in speech_inputs]
)
def _check_truncation(self, numpify=False):
def _inputs_have_equal_length(input):
length = len(input[0])
for input_slice in input[1:]:
if len(input_slice) != length:
return False
return True
def _inputs_are_equal(input_1, input_2):
if len(input_1) != len(input_2):
return False
for input_slice_1, input_slice_2 in zip(input_1, input_2):
if not np.allclose(np.asarray(input_slice_1),
np.asarray(input_slice_2),
atol=1e-3):
return False
return True
feat_extract = self.feature_extraction_class(**self.feat_extract_dict)
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common(
numpify=numpify)
input_name = feat_extract.model_input_names[0]
processed_features = BatchFeature({input_name: speech_inputs})
# truncate to smallest
input_1 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[0]),
truncation=True)
input_1 = input_1[input_name]
input_2 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[0]))
input_2 = input_2[input_name]
self.assertTrue(_inputs_have_equal_length(input_1))
self.assertFalse(_inputs_have_equal_length(input_2))
# truncate to smallest with np
input_3 = feat_extract.pad(
processed_features,
padding="max_length",
max_length=len(speech_inputs[0]),
return_tensors="np",
truncation=True,
)
input_3 = input_3[input_name]
input_4 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[0]),
return_tensors="np")
input_4 = input_4[input_name]
self.assertTrue(_inputs_have_equal_length(input_3))
self.assertTrue(input_3.shape[1] == len(speech_inputs[0]))
# since truncation forces padding to be smaller than longest input
# function can't return `np.ndarray`, but has to return list
self.assertFalse(_inputs_have_equal_length(input_4))
# truncate to middle
input_5 = feat_extract.pad(
processed_features,
padding="max_length",
max_length=len(speech_inputs[1]),
truncation=True,
return_tensors="np",
)
input_5 = input_5[input_name]
input_6 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[1]),
truncation=True)
input_6 = input_6[input_name]
input_7 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[1]),
return_tensors="np")
input_7 = input_7[input_name]
self.assertTrue(input_5.shape[1] == len(speech_inputs[1]))
self.assertTrue(_inputs_have_equal_length(input_5))
self.assertTrue(_inputs_have_equal_length(input_6))
self.assertTrue(_inputs_are_equal(input_5, input_6))
# since truncation forces padding to be smaller than longest input
# function can't return `np.ndarray`, but has to return list
self.assertFalse(_inputs_have_equal_length(input_7))
self.assertTrue(len(input_7[-1]) == len(speech_inputs[-1]))
# padding has to be max_length when setting `truncation=True`
with self.assertRaises(ValueError):
feat_extract.pad(processed_features, truncation=True)[input_name]
# padding has to be max_length when setting `truncation=True`
with self.assertRaises(ValueError):
feat_extract.pad(processed_features,
padding="longest",
truncation=True)[input_name]
# padding has to be max_length when setting `truncation=True`
with self.assertRaises(ValueError):
feat_extract.pad(processed_features,
padding="longest",
truncation=True)[input_name]
# max_length parameter has to be provided when setting `truncation=True` and padding="max_length"
with self.assertRaises(ValueError):
feat_extract.pad(processed_features,
padding="max_length",
truncation=True)[input_name]
# test truncation for `pad_to_multiple_of` for List[int] + numpy
pad_to_multiple_of = 12
input_8 = feat_extract.pad(
processed_features,
padding="max_length",
max_length=len(speech_inputs[0]),
pad_to_multiple_of=pad_to_multiple_of,
truncation=True,
)
input_8 = input_8[input_name]
input_9 = feat_extract.pad(
processed_features,
padding="max_length",
max_length=len(speech_inputs[0]),
pad_to_multiple_of=pad_to_multiple_of,
)
input_9 = input_9[input_name]
# retrieve expected_length as multiple of pad_to_multiple_of
expected_length = len(speech_inputs[0])
if expected_length % pad_to_multiple_of != 0:
expected_length = ((len(speech_inputs[0]) // pad_to_multiple_of) +
1) * pad_to_multiple_of
self.assertTrue(len(input_8[0]) == expected_length)
self.assertTrue(_inputs_have_equal_length(input_8))
self.assertFalse(_inputs_have_equal_length(input_9))
def _check_padding(self, numpify=False):
def _inputs_have_equal_length(input):
length = len(input[0])
for input_slice in input[1:]:
if len(input_slice) != length:
return False
return True
def _inputs_are_equal(input_1, input_2):
if len(input_1) != len(input_2):
return False
for input_slice_1, input_slice_2 in zip(input_1, input_2):
if not np.allclose(np.asarray(input_slice_1),
np.asarray(input_slice_2),
atol=1e-3):
return False
return True
feat_extract = self.feature_extraction_class(**self.feat_extract_dict)
speech_inputs = self.feat_extract_tester.prepare_inputs_for_common(
numpify=numpify)
input_name = feat_extract.model_input_names[0]
processed_features = BatchFeature({input_name: speech_inputs})
pad_diff = self.feat_extract_tester.seq_length_diff
pad_max_length = self.feat_extract_tester.max_seq_length + pad_diff
pad_min_length = self.feat_extract_tester.min_seq_length
batch_size = self.feat_extract_tester.batch_size
feature_size = self.feat_extract_tester.feature_size
# test padding for List[int] + numpy
input_1 = feat_extract.pad(processed_features, padding=False)
input_1 = input_1[input_name]
input_2 = feat_extract.pad(processed_features, padding="longest")
input_2 = input_2[input_name]
input_3 = feat_extract.pad(processed_features,
padding="max_length",
max_length=len(speech_inputs[-1]))
input_3 = input_3[input_name]
input_4 = feat_extract.pad(processed_features,
padding="longest",
return_tensors="np")
input_4 = input_4[input_name]
# max_length parameter has to be provided when setting `padding="max_length"`
with self.assertRaises(ValueError):
feat_extract.pad(processed_features,
padding="max_length")[input_name]
input_5 = feat_extract.pad(processed_features,
padding="max_length",
max_length=pad_max_length,
return_tensors="np")
input_5 = input_5[input_name]
self.assertFalse(_inputs_have_equal_length(input_1))
self.assertTrue(_inputs_have_equal_length(input_2))
self.assertTrue(_inputs_have_equal_length(input_3))
self.assertTrue(_inputs_are_equal(input_2, input_3))
self.assertTrue(len(input_1[0]) == pad_min_length)
self.assertTrue(len(input_1[1]) == pad_min_length + pad_diff)
self.assertTrue(input_4.shape[:2] == (batch_size, len(input_3[0])))
self.assertTrue(input_5.shape[:2] == (batch_size, pad_max_length))
if feature_size > 1:
self.assertTrue(
input_4.shape[2] == input_5.shape[2] == feature_size)
# test padding for `pad_to_multiple_of` for List[int] + numpy
input_6 = feat_extract.pad(processed_features, pad_to_multiple_of=10)
input_6 = input_6[input_name]
input_7 = feat_extract.pad(processed_features,
padding="longest",
pad_to_multiple_of=10)
input_7 = input_7[input_name]
input_8 = feat_extract.pad(processed_features,
padding="max_length",
pad_to_multiple_of=10,
max_length=pad_max_length)
input_8 = input_8[input_name]
input_9 = feat_extract.pad(
processed_features,
padding="max_length",
pad_to_multiple_of=10,
max_length=pad_max_length,
return_tensors="np",
)
input_9 = input_9[input_name]
self.assertTrue(all(len(x) % 10 == 0 for x in input_6))
self.assertTrue(_inputs_are_equal(input_6, input_7))
expected_mult_pad_length = pad_max_length if pad_max_length % 10 == 0 else (
pad_max_length // 10 + 1) * 10
self.assertTrue(
all(len(x) == expected_mult_pad_length for x in input_8))
self.assertTrue(input_9.shape[:2],
(batch_size, expected_mult_pad_length))
if feature_size > 1:
self.assertTrue(input_9.shape[2] == feature_size)
# Check padding value is correct
padding_vector_sum = (np.ones(self.feat_extract_tester.feature_size) *
feat_extract.padding_value).sum()
self.assertTrue(
abs(
np.asarray(input_2[0])[pad_min_length:].sum() -
padding_vector_sum * (pad_max_length - pad_min_length)) < 1e-3)
self.assertTrue(
abs(
np.asarray(input_2[1])[pad_min_length + pad_diff:].sum() -
padding_vector_sum *
(pad_max_length - pad_min_length - pad_diff)) < 1e-3)
self.assertTrue(
abs(
np.asarray(input_2[2])[pad_min_length + 2 * pad_diff:].sum() -
padding_vector_sum *
(pad_max_length - pad_min_length - 2 * pad_diff)) < 1e-3)
self.assertTrue(
abs(input_5[0, pad_min_length:].sum() - padding_vector_sum *
(pad_max_length - pad_min_length)) < 1e-3)
self.assertTrue(
abs(input_9[0, pad_min_length:].sum() - padding_vector_sum *
(expected_mult_pad_length - pad_min_length)) < 1e-3)
