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# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
import unittest
import unittest.mock
from pytorchvideo.data.dataset_manifest_utils import (
EncodedVideoInfo,
VideoDataset,
VideoFrameInfo,
VideoInfo,
)
from utils import get_flat_video_frames, MOCK_VIDEO_IDS, MOCK_VIDEO_INFOS
class TestDatasetManifestUtils(unittest.TestCase):
def test_VideoFrameInfo(self):
video_frame_info = VideoFrameInfo(
# This is a key-mapping as the underlying
# annotation files are of these string columns
**{
"video_id": "P01_012",
"location": "c:/",
"frame_file_stem": "P01_012_",
"frame_string_length": "20",
"min_frame_number": "0",
"max_frame_number": "22",
"file_extension": "png",
}
)
self.assertEqual(video_frame_info.video_id, "P01_012")
self.assertEqual(video_frame_info.location, "c:/")
self.assertEqual(video_frame_info.frame_file_stem, "P01_012_")
self.assertEqual(video_frame_info.frame_string_length, 20)
self.assertEqual(video_frame_info.min_frame_number, 0)
self.assertEqual(video_frame_info.max_frame_number, 22)
self.assertEqual(video_frame_info.file_extension, "png")
def test_EncodedVideoInfo(self):
encoded_video_info = EncodedVideoInfo(
# This is a key-mapping as the underlying epic-kitchen
# annotation files are of these string columns
**{"video_id": "P01_12", "file_path": "c:/P01_12.mp4"}
)
self.assertEqual(encoded_video_info.video_id, "P01_12")
self.assertEqual(encoded_video_info.file_path, "c:/P01_12.mp4")
def test_VideoInfo(self):
video_info = VideoInfo(
# This is a key-mapping as the underlying epic-kitchen
# annotation files are of these string columns
**{
"video_id": "P01_01",
"resolution": "1000x200",
"duration": "123.45",
"fps": "59.9",
}
)
self.assertEqual(video_info.video_id, "P01_01")
self.assertEqual(video_info.resolution, "1000x200")
self.assertEqual(video_info.duration, 123.45)
self.assertEqual(video_info.fps, 59.9)
def test_frame_number_to_filepath(self):
file_names_vid4 = VideoDataset._frame_number_to_filepaths(
MOCK_VIDEO_IDS[3],
get_flat_video_frames("testdirectory", "jpg"),
MOCK_VIDEO_INFOS,
)
file_path = file_names_vid4[100]
self.assertEqual(
file_path, f"testdirectory/{MOCK_VIDEO_IDS[3]}/frame_0000000101.jpg"
)
with self.assertRaises(IndexError):
file_path = file_names_vid4[10000]
file_path = file_names_vid4[-1]
self.assertEqual(
file_path, f"testdirectory/{MOCK_VIDEO_IDS[3]}/frame_0000001530.jpg"
)
file_names_vid2 = VideoDataset._frame_number_to_filepaths(
MOCK_VIDEO_IDS[1],
get_flat_video_frames("testdirectory2", "png"),
MOCK_VIDEO_INFOS,
)
file_path = file_names_vid2[0]
self.assertEqual(
file_path, f"testdirectory2/{MOCK_VIDEO_IDS[1]}/frame_0000000002.png"
)
file_path = file_names_vid2[2999]
self.assertEqual(
file_path, f"testdirectory2/{MOCK_VIDEO_IDS[1]}/frame_0000003001.png"
)
with self.assertRaises(IndexError):
file_path = file_names_vid2[3000]
def test_remove_video_info_missing_or_incomplete_videos(self):
video_infos_a = MOCK_VIDEO_INFOS.copy()
video_frames_a = get_flat_video_frames("testdirectory2", "jpg")
video_frames_a_copy = video_frames_a.copy()
# No-Op
VideoDataset._remove_video_info_missing_or_incomplete_videos(
video_frames_a, video_infos_a
)
self.assertEqual(len(video_infos_a), len(MOCK_VIDEO_INFOS))
for video_id in video_infos_a:
self.assertEqual(video_infos_a[video_id], MOCK_VIDEO_INFOS[video_id])
self.assertEqual(len(video_frames_a), len(video_frames_a_copy))
for video_id in video_frames_a:
self.assertEqual(video_frames_a[video_id], video_frames_a_copy[video_id])
video_infos_b = MOCK_VIDEO_INFOS.copy()
video_frames_b = video_frames_a_copy.copy()
# Unmatched video info, should be removed
video_infos_b["P07_001"] = VideoInfo(
video_id="P07_001", resolution="720x1280", duration=17.001, fps=30
)
# Unmatched video frame entry, should be removed
video_frames_b["P07_002"]: VideoFrameInfo(
min_frame_number=1, max_frame_number=1530, frame_string_length=8
)
# Video info that defines approximately 6000 frames with 600 present from frame manifest
# Should be dropped
video_frames_b["P08_001"]: VideoFrameInfo(
min_frame_number=1, max_frame_number=600, frame_string_length=8
)
video_infos_b["P08_001"] = VideoInfo(
video_id="P08_001", resolution="720x1280", duration=100, fps=60
)
VideoDataset._remove_video_info_missing_or_incomplete_videos(
video_frames_b, video_infos_b
)
# All newly added fields should be removed
self.assertEqual(len(video_infos_b), len(MOCK_VIDEO_INFOS))
for video_id in video_infos_b:
self.assertEqual(video_infos_b[video_id], MOCK_VIDEO_INFOS[video_id])
self.assertEqual(len(video_frames_b), len(video_frames_a_copy))
for video_id in video_frames_b:
self.assertEqual(video_frames_b[video_id], video_frames_a_copy[video_id])
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