| 42 | return int(l), int(t), int(r), int(b) |
| 43 | |
| 44 | def exec(self): |
| 45 | envelope = self.inp.recv() |
| 46 | if envelope is None: |
| 47 | logger.info('stream shaper finish') |
| 48 | # last frame, throw out all cropped image |
| 49 | for id in self._map: |
| 50 | self.out.send(self._map[id]) |
| 51 | self._map.clear() |
| 52 | return |
| 53 | |
| 54 | msg = envelope.msg |
| 55 | |
| 56 | # update the BEST |
| 57 | if 'tracks' in msg: |
| 58 | for track in msg['tracks']: |
| 59 | tid = track['tid'] |
| 60 | box = track['bbox'] |
| 61 | if tid not in self._map: |
| 62 | self._map[tid] = envelope.repack(msg) |
| 63 | |
| 64 | data = msg['data'] |
| 65 | l, t, r, b = self.expand(box, data.shape[1], data.shape[0], 1.1) |
| 66 | crop = data[t:b, l:r] |
| 67 | assert crop is not None |
| 68 | quality = Quality.area(crop) |
| 69 | |
| 70 | if self._mode == 'BEST': |
| 71 | tid_msg = self._map[tid].msg |
| 72 | # save best image |
| 73 | if 'quality' not in tid_msg: |
| 74 | tid_msg['quality'] = -1 |
| 75 | |
| 76 | old_quality = tid_msg['quality'] |
| 77 | if quality > old_quality: |
| 78 | tid_msg['quality'] = quality |
| 79 | tid_msg['crop'] = crop |
| 80 | |
| 81 | if 'failed_ids' in msg: |
| 82 | ids = msg['failed_ids'] |
| 83 | if len(ids) > 0: |
| 84 | logger.debug(f'shaper recv failed_ids {ids}') |
| 85 | |
| 86 | for id in ids: |
| 87 | if id in self._map: |
| 88 | self.out.send(self._map[id]) |
| 89 | self._map.pop(id) |