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| from typing import Any, Dict, List | |
| import copy | |
| def merge_timestamps(timestamps: List[Dict[str, Any]], merge_window: float = 5, max_merge_size: float = 30, padding_left: float = 1, padding_right: float = 1): | |
| result = [] | |
| if len(timestamps) == 0: | |
| return result | |
| if max_merge_size is None: | |
| return timestamps | |
| if padding_left is None: | |
| padding_left = 0 | |
| if padding_right is None: | |
| padding_right = 0 | |
| processed_time = 0 | |
| current_segment = None | |
| for i in range(len(timestamps)): | |
| next_segment = timestamps[i] | |
| delta = next_segment['start'] - processed_time | |
| # Note that segments can still be longer than the max merge size, they just won't be merged in that case | |
| if current_segment is None or (merge_window is not None and delta > merge_window) \ | |
| or next_segment['end'] - current_segment['start'] > max_merge_size: | |
| # Finish the current segment | |
| if current_segment is not None: | |
| # Add right padding | |
| finish_padding = min(padding_right, delta / 2) if delta < padding_left + padding_right else padding_right | |
| current_segment['end'] += finish_padding | |
| delta -= finish_padding | |
| result.append(current_segment) | |
| # Start a new segment | |
| current_segment = copy.deepcopy(next_segment) | |
| # Pad the segment | |
| current_segment['start'] = current_segment['start'] - min(padding_left, delta) | |
| processed_time = current_segment['end'] | |
| else: | |
| # Merge the segment | |
| current_segment['end'] = next_segment['end'] | |
| processed_time = current_segment['end'] | |
| # Add the last segment | |
| if current_segment is not None: | |
| current_segment['end'] += padding_right | |
| result.append(current_segment) | |
| return result |