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Fix OBO error in multi_frame_dataset

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In some datasets, this meant one frame was included in a sequence where it didn't belong. In datasets with mismatched chunk sizes, this resulted in an error.
This commit is contained in:
James Betker 2020-11-03 14:32:06 -07:00
parent e990be0449
commit c21088e238
1 changed files with 2 additions and 2 deletions
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codes/data/multi_frame_dataset.py
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@ -15,9 +15,9 @@ class MultiFrameDataset(BaseUnsupervisedImageDataset):
def get_sequential_image_paths_from(self, chunk_index, chunk_offset): def get_sequential_image_paths_from(self, chunk_index, chunk_offset):
im_name = self.chunk_name(chunk_index) im_name = self.chunk_name(chunk_index)
source_name = im_name[:-12] source_name = im_name[:-12]
frames_needed = self.num_frames - 1
# Search backwards for the frames needed. We are assuming that every video in the dataset has at least frames_needed frames. # Search backwards for the frames needed. We are assuming that every video in the dataset has at least frames_needed frames.
search_idx = chunk_index-1 frames_needed = self.num_frames
search_idx = chunk_index
while frames_needed > 0: while frames_needed > 0:
if source_name in self.chunk_name(search_idx): if source_name in self.chunk_name(search_idx):
frames_needed -= 1 frames_needed -= 1