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test_utils.py
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import unittest
import pytest
from mmif import Mmif, Document, AnnotationTypes
from mmif.utils import sequence_helper as sqh
from mmif.utils import timeunit_helper as tuh
from mmif.utils import video_document_helper as vdh
class TestTimeunitHelper(unittest.TestCase):
FPS = 30
def test_convert(self):
self.assertEqual(1000, tuh.convert(1, 's', 'ms', self.FPS))
self.assertEqual(1.1, tuh.convert(1100, 'ms', 's', self.FPS))
self.assertEqual('00:01:30.000', tuh.convert(90, 's', 'i', self.FPS))
self.assertEqual(3300, tuh.convert('00:00:03.300', 'i', 'ms', self.FPS))
self.assertEqual(7.77, tuh.convert('00:00:07.770', 'i', 's', self.FPS))
class TestVideoDocumentHelper(unittest.TestCase):
def setUp(self):
self.fps = 29.97
self.mmif_obj = Mmif(validate=False)
self.a_view = self.mmif_obj.new_view()
self.video_doc = Document({
"@type": "http://mmif.clams.ai/vocabulary/VideoDocument/v1",
"properties": {
"mime": "video",
"id": "d1",
"location": "file:///home/snewman/Documents/test_vid.mp4"
}
})
self.video_doc.add_property('fps', self.fps)
self.mmif_obj.add_document(self.video_doc)
def test_extract_mid_frame(self):
tf = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=100, end=200, timeUnit='frame', document='d1')
self.assertEqual(150, vdh.get_mid_framenum(self.mmif_obj, tf))
tf = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=0, end=200, timeUnit='frame', document='d1')
self.assertEqual(100, vdh.get_mid_framenum(self.mmif_obj, tf))
tf = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=0, end=3, timeUnit='seconds', document='d1')
self.assertEqual(vdh.convert(1.5, 's', 'f', self.fps), vdh.get_mid_framenum(self.mmif_obj, tf))
def test_extract_representative_frame(self):
tp = self.a_view.new_annotation(AnnotationTypes.TimePoint, timePoint=1500, timeUnit='milliseconds', document='d1')
tf = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=1000, end=2000, timeUnit='milliseconds', document='d1')
tf.add_property('representatives', [tp.id])
rep_frame_num = vdh.get_representative_framenum(self.mmif_obj, tf)
expected_frame_num = vdh.millisecond_to_framenum(self.video_doc, tp.get_property('timePoint'))
self.assertEqual(expected_frame_num, rep_frame_num)
# check there is an error if no representatives
tf = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=1000, end=2000, timeUnit='milliseconds', document='d1')
with pytest.raises(ValueError):
vdh.get_representative_framenum(self.mmif_obj, tf)
# check there is an error if there is a representative referencing a timepoint that
# does not exist
tf.add_property('representatives', ['fake_tp_id'])
with pytest.raises(ValueError):
vdh.get_representative_framenum(self.mmif_obj, tf)
def test_get_framerate(self):
self.assertAlmostEqual(29.97, vdh.get_framerate(self.video_doc), places=0)
def test_frames_to_seconds(self):
self.assertAlmostEqual(3.337, vdh.framenum_to_second(self.video_doc, 100), places=0)
def test_frames_to_milliseconds(self):
self.assertAlmostEqual(3337.0, vdh.framenum_to_millisecond(self.video_doc, 100), places=0)
def test_seconds_to_frames(self):
self.assertAlmostEqual(100, vdh.second_to_framenum(self.video_doc, 3.337), places=0)
def test_milliseconds_to_frames(self):
self.assertAlmostEqual(100, vdh.millisecond_to_framenum(self.video_doc, 3337.0), places=0)
def test_convert_roundtrip(self):
# ms for 1 frame
tolerance = 1000 / self.video_doc.get_property('fps')
for ms in [1000, 1234, 4321, 44444, 789789]:
m2f = vdh.millisecond_to_framenum(self.video_doc, ms)
m2f2m = vdh.framenum_to_millisecond(self.video_doc, m2f)
self.assertAlmostEqual(ms, m2f2m, delta=tolerance)
def test_sample_frames(self):
s_frame = vdh.second_to_framenum(self.video_doc, 3)
e_frame = vdh.second_to_framenum(self.video_doc, 5.5)
# note that int(29.97) = 29
self.assertEqual(3, len(vdh.sample_frames(s_frame, e_frame, self.fps)))
s_frame = vdh.second_to_framenum(self.video_doc, 3)
e_frame = vdh.second_to_framenum(self.video_doc, 5)
self.assertEqual(1, len(vdh.sample_frames(s_frame, e_frame, 60)))
def test_convert_timepoint(self):
timepoint_ann = self.a_view.new_annotation(AnnotationTypes.BoundingBox, timePoint=3, timeUnit='second', document='d1')
self.assertEqual(vdh.convert(3, 's', 'f', self.fps), vdh.convert_timepoint(self.mmif_obj, timepoint_ann, 'f'))
def test_convert_timeframe(self):
self.a_view.metadata.new_contain(AnnotationTypes.TimeFrame, timeUnit='frame', document='d1')
timeframe_ann = self.a_view.new_annotation(AnnotationTypes.TimeFrame, start=100, end=200)
for times in zip((3.337, 6.674), vdh.convert_timeframe(self.mmif_obj, timeframe_ann, 's')):
self.assertAlmostEqual(*times, places=0)
class TestSequenceHelper(unittest.TestCase):
def test_validate_labelset(self):
mmif_obj = Mmif(validate=False)
view = mmif_obj.new_view()
anns = [view.new_annotation(AnnotationTypes.TimePoint, labelset=['a', 'b', 'c']) for _ in range(3)]
self.assertTrue(sqh.validate_labelset(anns))
anns.append(view.new_annotation(AnnotationTypes.TimePoint, labelset=['a', 'b', 'c', 'd']))
with pytest.raises(ValueError):
self.assertFalse(sqh.validate_labelset(anns))
anns.pop()
anns.append(view.new_annotation(AnnotationTypes.TimePoint))
with pytest.raises(KeyError):
self.assertFalse(sqh.validate_labelset(anns))
def test_build_remapper(self):
self.assertEqual({'a': 'a', 'b': 'b', 'c': 'c', 'd': 'd', 'e': 'e', 'f': 'f'},
sqh.build_label_remapper(list('abcdef'), {}))
self.assertEqual({'a': 1, 'b': 2, 'c': 1, 'd': '-', 'e': '-', 'f': '-'},
sqh.build_label_remapper(list('abcdef'), {'a': 1, 'b': 2, 'c': 1}))
def test_build_score_lists(self):
c1 = {'a': 0.1, 'b': 0.2, 'c': 0.3}
c2 = {'a': 0.6, 'b': 0.5, 'c': 0.4}
remap = {'a': 'x', 'b': 'y', 'c': 'x'}
lblmap, scores = sqh.build_score_lists([c1, c2], remap)
self.assertEqual(2, len(scores.shape))
self.assertEqual(2, scores.shape[0])
self.assertEqual(2, scores.shape[1])
self.assertEqual({'x': [0.3, 0.6], 'y': [0.2, 0.5]}, {lbl: list(scores[idx]) for lbl, idx in lblmap.items()})
_, scores = sqh.build_score_lists([c1, c2], remap, score_remap_op=min)
self.assertEqual({'x': [0.1, 0.4], 'y': [0.2, 0.5]}, {lbl: list(scores[idx]) for lbl, idx in lblmap.items()})
def test_width_based_smoothing(self):
scores = [0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1]
# idx = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# res = [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1],
# cannot pass non-positive threshold for sequence sizes
with pytest.raises(ValueError):
sqh.smooth_outlying_short_intervals(scores, 1, 0)
with pytest.raises(ValueError):
sqh.smooth_outlying_short_intervals(scores, 0, 1)
with pytest.raises(ValueError):
sqh.smooth_outlying_short_intervals(scores, 0, 0)
self.assertEqual([(1, 13), (19, 20)],
sqh.smooth_outlying_short_intervals(scores, 1, 4))
# idx = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# res = [0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
self.assertEqual([(1, 7)],
sqh.smooth_outlying_short_intervals(scores, 4, 2))
# idx = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# res = [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0],
self.assertEqual([(1, 13)],
sqh.smooth_outlying_short_intervals(scores, 4, 4))
# special test case for not trimming short end peaks adjacent to short gaps
scores = [1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1]
# idx = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# res = [1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1],
self.assertEqual([(0, 7), (11, 20)],
sqh.smooth_outlying_short_intervals(scores, 4, 4))
# special test case for stitching only mode
scores = [0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1]
# idx = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# res = [0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1],
self.assertEqual([(3, 7), (11, 15), (18, 20)],
sqh.smooth_outlying_short_intervals(scores, 1, 1))
if __name__ == '__main__':
unittest.main()