def generate_print_poster(_print):
last_pic = last_pic_of_print(_print, 'raw')
if not last_pic: # This print does not have any raw pics
return
rotated_jpg_url = save_print_snapshot(
_print.printer,
last_pic,
f'private/{_print.id}_poster.jpg',
to_container=settings.TIMELAPSE_CONTAINER,
rotated=True,
to_long_term_storage=True)
if rotated_jpg_url:
_print.poster_url = rotated_jpg_url
_print.save()
# Save the unrotated snapshot so that it is still viewable even after the print is done.
unrotated_jpg_url = save_print_snapshot(
_print.printer,
last_pic,
f'snapshots/{_print.printer.id}/latest_unrotated.jpg',
rotated=False,
to_long_term_storage=False)
cache.printer_pic_set(_print.printer.id, {'img_url': unrotated_jpg_url},
ex=IMG_URL_TTL_SECONDS)
def post(self, request):
printer = request.auth
printer.refresh_from_db() # Connection is keep-alive, which means printer object can be stale.
pic = request.FILES['pic']
pic = cap_image_size(pic)
pic_id = str(timezone.now().timestamp())
if not printer.current_print: # Some times pics come in when current_print is not set - maybe because printer status is out of sync between plugin and server?
pic_path = f'{printer.id}/0/{pic_id}.jpg'
else:
pic_path = f'{printer.id}/{printer.current_print.id}/{pic_id}.jpg'
internal_url, external_url = save_file_obj(f'raw/{pic_path}', pic, settings.PICS_CONTAINER, long_term_storage=False)
if not printer.should_watch() or not printer.actively_printing():
cache.printer_pic_set(printer.id, {'img_url': external_url}, ex=IMG_URL_TTL_SECONDS)
send_status_to_web(printer.id)
return Response({'result': 'ok'})
req = requests.get(settings.ML_API_HOST + '/p/', params={'img': internal_url}, headers=ml_api_auth_headers(), verify=False)
req.raise_for_status()
resp = req.json()
cache.print_num_predictions_incr(printer.current_print.id)
detections = resp['detections']
prediction, _ = PrinterPrediction.objects.get_or_create(printer=printer)
update_prediction_with_detections(prediction, detections)
prediction.save()
if prediction.current_p > settings.THRESHOLD_LOW * 0.2: # Select predictions high enough for focused feedback
cache.print_high_prediction_add(printer.current_print.id, prediction.current_p, pic_id)
pic.file.seek(0) # Reset file object pointer so that we can load it again
tagged_img = io.BytesIO()
detections_to_visualize = [d for d in detections if d[1] > VISUALIZATION_THRESH]
overlay_detections(Image.open(pic), detections_to_visualize).save(tagged_img, "JPEG")
tagged_img.seek(0)
_, external_url = save_file_obj(f'tagged/{pic_path}', tagged_img, settings.PICS_CONTAINER, long_term_storage=False)
cache.printer_pic_set(printer.id, {'img_url': external_url}, ex=IMG_URL_TTL_SECONDS)
prediction_json = serializers.serialize("json", [prediction, ])
p_out = io.BytesIO()
p_out.write(prediction_json.encode('UTF-8'))
p_out.seek(0)
save_file_obj(f'p/{printer.id}/{printer.current_print.id}/{pic_id}.json', p_out, settings.PICS_CONTAINER, long_term_storage=False)
if is_failing(prediction, printer.detective_sensitivity, escalating_factor=settings.ESCALATING_FACTOR):
pause_if_needed(printer)
elif is_failing(prediction, printer.detective_sensitivity, escalating_factor=1):
alert_if_needed(printer)
send_status_to_web(printer.id)
return Response({'result': 'ok'})
def generate_print_poster(_print):
(unrotated_jpg_url, rotated_jpg_url) = save_print_snapshot(
_print,
last_pic_of_print(_print, 'raw'),
unrotated_jpg_path=
f'snapshots/{_print.printer.id}/{_print.id}/{str(timezone.now().timestamp())}_unrotated.jpg',
rotated_jpg_path=f'private/{_print.id}_poster.jpg')
if unrotated_jpg_url:
cache.printer_pic_set(_print.printer.id,
{'img_url': unrotated_jpg_url},
ex=IMG_URL_TTL_SECONDS)
if rotated_jpg_url:
_print.poster_url = rotated_jpg_url
_print.save()
def generate_print_poster(_print):
unrotated_jpg_url = save_print_snapshot(
_print,
last_pic_of_print(_print, 'raw'),
f'snapshots/{_print.printer.id}/{_print.id}/{str(timezone.now().timestamp())}_unrotated.jpg',
rotated=False,
to_long_term_storage=False)
if unrotated_jpg_url:
cache.printer_pic_set(_print.printer.id,
{'img_url': unrotated_jpg_url},
ex=IMG_URL_TTL_SECONDS)
rotated_jpg_url = save_print_snapshot(
_print,
last_pic_of_print(_print, 'raw'),
f'private/{_print.id}_poster.jpg',
to_container=settings.TIMELAPSE_CONTAINER,
rotated=True,
to_long_term_storage=True)
if rotated_jpg_url:
_print.poster_url = rotated_jpg_url
_print.save()
def will_record_timelapse(_print):
last_pic = last_pic_of_print(_print, 'raw')
if not last_pic: # This print does not have any raw pics
return False
# Save the unrotated snapshot so that it is still viewable even after the print is done.
unrotated_jpg_url = save_print_snapshot(
_print.printer,
last_pic,
f'snapshots/{_print.printer.id}/latest_unrotated.jpg',
rotated=False,
to_long_term_storage=False)
cache.printer_pic_set(_print.printer.id, {'img_url': unrotated_jpg_url},
ex=IMG_URL_TTL_SECONDS)
min_timelapse_secs = _print.printer.min_timelapse_secs_on_cancel if _print.is_canceled(
) else _print.printer.min_timelapse_secs_on_finish
if min_timelapse_secs < 0 or (_print.ended_at() - _print.started_at
).total_seconds() < min_timelapse_secs:
_print.delete()
clean_up_print_pics(_print)
return False
rotated_jpg_url = save_print_snapshot(
_print.printer,
last_pic,
f'private/{_print.id}_poster.jpg',
to_container=settings.TIMELAPSE_CONTAINER,
rotated=True,
to_long_term_storage=True)
if rotated_jpg_url:
_print.poster_url = rotated_jpg_url
_print.save(keep_deleted=True)
return True
