def _create_thread(tid, data, isImport=False):
slogger.glob.info("create task #{}".format(tid))
db_task = models.Task.objects.select_for_update().get(pk=tid)
db_data = db_task.data
upload_dir = db_data.get_upload_dirname()
if data['remote_files']:
if db_data.storage != models.StorageChoice.CLOUD_STORAGE:
data['remote_files'] = _download_data(data['remote_files'], upload_dir)
manifest_file = []
media = _count_files(data, manifest_file)
media, task_mode = _validate_data(media, manifest_file)
if manifest_file:
assert settings.USE_CACHE and db_data.storage_method == models.StorageMethodChoice.CACHE, \
"File with meta information can be uploaded if 'Use cache' option is also selected"
if data['server_files']:
if db_data.storage == models.StorageChoice.LOCAL:
_copy_data_from_share(data['server_files'], upload_dir)
elif db_data.storage == models.StorageChoice.SHARE:
upload_dir = settings.SHARE_ROOT
else: # cloud storage
if not manifest_file: raise Exception('A manifest file not found')
db_cloud_storage = db_data.cloud_storage
credentials = Credentials()
credentials.convert_from_db({
'type': db_cloud_storage.credentials_type,
'value': db_cloud_storage.credentials,
})
details = {
'resource': db_cloud_storage.resource,
'credentials': credentials,
'specific_attributes': db_cloud_storage.get_specific_attributes()
}
cloud_storage_instance = get_cloud_storage_instance(cloud_provider=db_cloud_storage.provider_type, **details)
first_sorted_media_image = sorted(media['image'])[0]
cloud_storage_instance.download_file(first_sorted_media_image, os.path.join(upload_dir, first_sorted_media_image))
# prepare task manifest file from cloud storage manifest file
manifest = ImageManifestManager(db_data.get_manifest_path())
cloud_storage_manifest = ImageManifestManager(
os.path.join(db_data.cloud_storage.get_storage_dirname(), manifest_file[0])
)
cloud_storage_manifest.set_index()
media_files = sorted(media['image'])
content = cloud_storage_manifest.get_subset(media_files)
manifest.create(content)
manifest.init_index()
av_scan_paths(upload_dir)
job = rq.get_current_job()
job.meta['status'] = 'Media files are being extracted...'
job.save_meta()
db_images = []
extractor = None
manifest_index = _get_manifest_frame_indexer()
# If upload from server_files image and directories
# need to update images list by all found images in directories
if (data['server_files']) and len(media['directory']) and len(media['image']):
media['image'].extend(
[os.path.relpath(image, upload_dir) for image in
MEDIA_TYPES['directory']['extractor'](
source_path=[os.path.join(upload_dir, f) for f in media['directory']],
).absolute_source_paths
]
)
media['directory'] = []
for media_type, media_files in media.items():
if media_files:
if extractor is not None:
raise Exception('Combined data types are not supported')
source_paths=[os.path.join(upload_dir, f) for f in media_files]
if media_type in {'archive', 'zip'} and db_data.storage == models.StorageChoice.SHARE:
source_paths.append(db_data.get_upload_dirname())
upload_dir = db_data.get_upload_dirname()
db_data.storage = models.StorageChoice.LOCAL
if isImport and media_type == 'image' and db_data.storage == models.StorageChoice.SHARE:
manifest_index = _get_manifest_frame_indexer(db_data.start_frame, db_data.get_frame_step())
db_data.start_frame = 0
data['stop_frame'] = None
db_data.frame_filter = ''
extractor = MEDIA_TYPES[media_type]['extractor'](
source_path=source_paths,
step=db_data.get_frame_step(),
start=db_data.start_frame,
stop=data['stop_frame'],
)
validate_dimension = ValidateDimension()
if isinstance(extractor, MEDIA_TYPES['zip']['extractor']):
extractor.extract()
if db_data.storage == models.StorageChoice.LOCAL or \
(db_data.storage == models.StorageChoice.SHARE and \
isinstance(extractor, MEDIA_TYPES['zip']['extractor'])):
validate_dimension.set_path(upload_dir)
validate_dimension.validate()
if db_task.project is not None and db_task.project.tasks.count() > 1 and db_task.project.tasks.first().dimension != validate_dimension.dimension:
raise Exception(f'Dimension ({validate_dimension.dimension}) of the task must be the same as other tasks in project ({db_task.project.tasks.first().dimension})')
if validate_dimension.dimension == models.DimensionType.DIM_3D:
db_task.dimension = models.DimensionType.DIM_3D
extractor.reconcile(
source_files=[os.path.join(upload_dir, f) for f in validate_dimension.related_files.keys()],
step=db_data.get_frame_step(),
start=db_data.start_frame,
stop=data['stop_frame'],
dimension=models.DimensionType.DIM_3D,
)
related_images = {}
if isinstance(extractor, MEDIA_TYPES['image']['extractor']):
extractor.filter(lambda x: not re.search(r'(^|{0})related_images{0}'.format(os.sep), x))
related_images = detect_related_images(extractor.absolute_source_paths, upload_dir)
db_task.mode = task_mode
db_data.compressed_chunk_type = models.DataChoice.VIDEO if task_mode == 'interpolation' and not data['use_zip_chunks'] else models.DataChoice.IMAGESET
db_data.original_chunk_type = models.DataChoice.VIDEO if task_mode == 'interpolation' else models.DataChoice.IMAGESET
def update_progress(progress):
progress_animation = '|/-\\'
if not hasattr(update_progress, 'call_counter'):
update_progress.call_counter = 0
status_template = 'Images are being compressed {}'
if progress:
current_progress = '{}%'.format(round(progress * 100))
else:
current_progress = '{}'.format(progress_animation[update_progress.call_counter])
job.meta['status'] = status_template.format(current_progress)
job.save_meta()
update_progress.call_counter = (update_progress.call_counter + 1) % len(progress_animation)
compressed_chunk_writer_class = Mpeg4CompressedChunkWriter if db_data.compressed_chunk_type == models.DataChoice.VIDEO else ZipCompressedChunkWriter
if db_data.original_chunk_type == models.DataChoice.VIDEO:
original_chunk_writer_class = Mpeg4ChunkWriter
# Let's use QP=17 (that is 67 for 0-100 range) for the original chunks, which should be visually lossless or nearly so.
# A lower value will significantly increase the chunk size with a slight increase of quality.
original_quality = 67
else:
original_chunk_writer_class = ZipChunkWriter
original_quality = 100
kwargs = {}
if validate_dimension.dimension == models.DimensionType.DIM_3D:
kwargs["dimension"] = validate_dimension.dimension
compressed_chunk_writer = compressed_chunk_writer_class(db_data.image_quality, **kwargs)
original_chunk_writer = original_chunk_writer_class(original_quality)
# calculate chunk size if it isn't specified
if db_data.chunk_size is None:
if isinstance(compressed_chunk_writer, ZipCompressedChunkWriter):
if not (db_data.storage == models.StorageChoice.CLOUD_STORAGE):
w, h = extractor.get_image_size(0)
else:
img_properties = manifest[0]
w, h = img_properties['width'], img_properties['height']
area = h * w
db_data.chunk_size = max(2, min(72, 36 * 1920 * 1080 // area))
else:
db_data.chunk_size = 36
video_path = ""
video_size = (0, 0)
def _update_status(msg):
job.meta['status'] = msg
job.save_meta()
if settings.USE_CACHE and db_data.storage_method == models.StorageMethodChoice.CACHE:
for media_type, media_files in media.items():
if not media_files:
continue
# replace manifest file (e.g was uploaded 'subdir/manifest.jsonl')
if manifest_file and not os.path.exists(db_data.get_manifest_path()):
shutil.copyfile(os.path.join(upload_dir, manifest_file[0]),
db_data.get_manifest_path())
if upload_dir != settings.SHARE_ROOT:
os.remove(os.path.join(upload_dir, manifest_file[0]))
if task_mode == MEDIA_TYPES['video']['mode']:
try:
manifest_is_prepared = False
if manifest_file:
try:
manifest = VideoManifestValidator(source_path=os.path.join(upload_dir, media_files[0]),
manifest_path=db_data.get_manifest_path())
manifest.init_index()
manifest.validate_seek_key_frames()
manifest.validate_frame_numbers()
assert len(manifest) > 0, 'No key frames.'
all_frames = manifest.video_length
video_size = manifest.video_resolution
manifest_is_prepared = True
except Exception as ex:
if os.path.exists(db_data.get_index_path()):
os.remove(db_data.get_index_path())
if isinstance(ex, AssertionError):
base_msg = str(ex)
else:
base_msg = 'Invalid manifest file was upload.'
slogger.glob.warning(str(ex))
_update_status('{} Start prepare a valid manifest file.'.format(base_msg))
if not manifest_is_prepared:
_update_status('Start prepare a manifest file')
manifest = VideoManifestManager(db_data.get_manifest_path())
meta_info = manifest.prepare_meta(
media_file=media_files[0],
upload_dir=upload_dir,
chunk_size=db_data.chunk_size
)
manifest.create(meta_info)
manifest.init_index()
_update_status('A manifest had been created')
all_frames = meta_info.get_size()
video_size = meta_info.frame_sizes
manifest_is_prepared = True
db_data.size = len(range(db_data.start_frame, min(data['stop_frame'] + 1 \
if data['stop_frame'] else all_frames, all_frames), db_data.get_frame_step()))
video_path = os.path.join(upload_dir, media_files[0])
except Exception as ex:
db_data.storage_method = models.StorageMethodChoice.FILE_SYSTEM
if os.path.exists(db_data.get_manifest_path()):
os.remove(db_data.get_manifest_path())
if os.path.exists(db_data.get_index_path()):
os.remove(db_data.get_index_path())
base_msg = str(ex) if isinstance(ex, AssertionError) \
else "Uploaded video does not support a quick way of task creating."
_update_status("{} The task will be created using the old method".format(base_msg))
else: # images, archive, pdf
db_data.size = len(extractor)
manifest = ImageManifestManager(db_data.get_manifest_path())
if not manifest_file:
if db_task.dimension == models.DimensionType.DIM_2D:
meta_info = manifest.prepare_meta(
sources=extractor.absolute_source_paths,
meta={ k: {'related_images': related_images[k] } for k in related_images },
data_dir=upload_dir
)
content = meta_info.content
else:
content = []
for source in extractor.absolute_source_paths:
name, ext = os.path.splitext(os.path.relpath(source, upload_dir))
content.append({
'name': name,
'meta': { 'related_images': related_images[''.join((name, ext))] },
'extension': ext
})
manifest.create(content)
manifest.init_index()
counter = itertools.count()
for _, chunk_frames in itertools.groupby(extractor.frame_range, lambda x: next(counter) // db_data.chunk_size):
chunk_paths = [(extractor.get_path(i), i) for i in chunk_frames]
img_sizes = []
for _, frame_id in chunk_paths:
properties = manifest[manifest_index(frame_id)]
if db_task.dimension == models.DimensionType.DIM_2D:
resolution = (properties['width'], properties['height'])
else:
resolution = extractor.get_image_size(frame_id)
img_sizes.append(resolution)
db_images.extend([
models.Image(data=db_data,
path=os.path.relpath(path, upload_dir),
frame=frame, width=w, height=h)
for (path, frame), (w, h) in zip(chunk_paths, img_sizes)
])
if db_data.storage_method == models.StorageMethodChoice.FILE_SYSTEM or not settings.USE_CACHE:
counter = itertools.count()
generator = itertools.groupby(extractor, lambda x: next(counter) // db_data.chunk_size)
for chunk_idx, chunk_data in generator:
chunk_data = list(chunk_data)
original_chunk_path = db_data.get_original_chunk_path(chunk_idx)
original_chunk_writer.save_as_chunk(chunk_data, original_chunk_path)
compressed_chunk_path = db_data.get_compressed_chunk_path(chunk_idx)
img_sizes = compressed_chunk_writer.save_as_chunk(chunk_data, compressed_chunk_path)
if db_task.mode == 'annotation':
db_images.extend([
models.Image(
data=db_data,
path=os.path.relpath(data[1], upload_dir),
frame=data[2],
width=size[0],
height=size[1])
for data, size in zip(chunk_data, img_sizes)
])
else:
video_size = img_sizes[0]
video_path = chunk_data[0][1]
db_data.size += len(chunk_data)
progress = extractor.get_progress(chunk_data[-1][2])
update_progress(progress)
if db_task.mode == 'annotation':
models.Image.objects.bulk_create(db_images)
created_images = models.Image.objects.filter(data_id=db_data.id)
db_related_files = [
models.RelatedFile(data=image.data, primary_image=image, path=os.path.join(upload_dir, related_file_path))
for image in created_images
for related_file_path in related_images.get(image.path, [])
]
models.RelatedFile.objects.bulk_create(db_related_files)
db_images = []
else:
models.Video.objects.create(
data=db_data,
path=os.path.relpath(video_path, upload_dir),
width=video_size[0], height=video_size[1])
if db_data.stop_frame == 0:
db_data.stop_frame = db_data.start_frame + (db_data.size - 1) * db_data.get_frame_step()
else:
# validate stop_frame
db_data.stop_frame = min(db_data.stop_frame, \
db_data.start_frame + (db_data.size - 1) * db_data.get_frame_step())
preview = extractor.get_preview()
preview.save(db_data.get_preview_path())
slogger.glob.info("Found frames {} for Data #{}".format(db_data.size, db_data.id))
_save_task_to_db(db_task)
def _create_thread(db_task,
data,
isBackupRestore=False,
isDatasetImport=False):
if isinstance(db_task, int):
db_task = models.Task.objects.select_for_update().get(pk=db_task)
slogger.glob.info("create task #{}".format(db_task.id))
db_data = db_task.data
upload_dir = db_data.get_upload_dirname()
if data['remote_files'] and not isDatasetImport:
data['remote_files'] = _download_data(data['remote_files'], upload_dir)
manifest_files = []
media = _count_files(data, manifest_files)
media, task_mode = _validate_data(media, manifest_files)
if data['server_files']:
if db_data.storage == models.StorageChoice.LOCAL:
_copy_data_from_source(data['server_files'], upload_dir,
data.get('server_files_path'))
elif db_data.storage == models.StorageChoice.SHARE:
upload_dir = settings.SHARE_ROOT
manifest_root = None
if db_data.storage in {
models.StorageChoice.LOCAL, models.StorageChoice.SHARE
}:
manifest_root = upload_dir
elif db_data.storage == models.StorageChoice.CLOUD_STORAGE:
manifest_root = db_data.cloud_storage.get_storage_dirname()
manifest_file = _validate_manifest(manifest_files, manifest_root)
if manifest_file and (not settings.USE_CACHE or db_data.storage_method !=
models.StorageMethodChoice.CACHE):
raise Exception(
"File with meta information can be uploaded if 'Use cache' option is also selected"
)
if data['server_files'] and db_data.storage == models.StorageChoice.CLOUD_STORAGE:
if not manifest_file: raise Exception('A manifest file not found')
db_cloud_storage = db_data.cloud_storage
credentials = Credentials()
credentials.convert_from_db({
'type': db_cloud_storage.credentials_type,
'value': db_cloud_storage.credentials,
})
details = {
'resource': db_cloud_storage.resource,
'credentials': credentials,
'specific_attributes': db_cloud_storage.get_specific_attributes()
}
cloud_storage_instance = get_cloud_storage_instance(
cloud_provider=db_cloud_storage.provider_type, **details)
sorted_media = sort(media['image'], data['sorting_method'])
first_sorted_media_image = sorted_media[0]
cloud_storage_instance.download_file(
first_sorted_media_image,
os.path.join(upload_dir, first_sorted_media_image))
# prepare task manifest file from cloud storage manifest file
# NOTE we should create manifest before defining chunk_size
# FIXME in the future when will be implemented archive support
manifest = ImageManifestManager(db_data.get_manifest_path())
cloud_storage_manifest = ImageManifestManager(
os.path.join(db_data.cloud_storage.get_storage_dirname(),
manifest_file),
db_data.cloud_storage.get_storage_dirname())
cloud_storage_manifest.set_index()
sequence, content = cloud_storage_manifest.get_subset(sorted_media)
sorted_content = (i[1] for i in sorted(zip(sequence, content)))
manifest.create(sorted_content)
av_scan_paths(upload_dir)
job = rq.get_current_job()
job.meta['status'] = 'Media files are being extracted...'
job.save_meta()
db_images = []
extractor = None
manifest_index = _get_manifest_frame_indexer()
# If upload from server_files image and directories
# need to update images list by all found images in directories
if (data['server_files']) and len(media['directory']) and len(
media['image']):
media['image'].extend([
os.path.relpath(image, upload_dir)
for image in MEDIA_TYPES['directory']['extractor'](source_path=[
os.path.join(upload_dir, f) for f in media['directory']
], ).absolute_source_paths
])
media['directory'] = []
for media_type, media_files in media.items():
if media_files:
if extractor is not None:
raise Exception('Combined data types are not supported')
if (
isDatasetImport or isBackupRestore
) and media_type == 'image' and db_data.storage == models.StorageChoice.SHARE:
manifest_index = _get_manifest_frame_indexer(
db_data.start_frame, db_data.get_frame_step())
db_data.start_frame = 0
data['stop_frame'] = None
db_data.frame_filter = ''
source_paths = [os.path.join(upload_dir, f) for f in media_files]
if manifest_file and not isBackupRestore and data[
'sorting_method'] in {
models.SortingMethod.RANDOM,
models.SortingMethod.PREDEFINED
}:
raise Exception(
"It isn't supported to upload manifest file and use random sorting"
)
if isBackupRestore and db_data.storage_method == models.StorageMethodChoice.FILE_SYSTEM and \
data['sorting_method'] in {models.SortingMethod.RANDOM, models.SortingMethod.PREDEFINED}:
raise Exception(
"It isn't supported to import the task that was created without cache but with random/predefined sorting"
)
details = {
'source_path': source_paths,
'step': db_data.get_frame_step(),
'start': db_data.start_frame,
'stop': data['stop_frame'],
}
if media_type in {
'archive', 'zip', 'pdf'
} and db_data.storage == models.StorageChoice.SHARE:
details['extract_dir'] = db_data.get_upload_dirname()
upload_dir = db_data.get_upload_dirname()
db_data.storage = models.StorageChoice.LOCAL
if media_type != 'video':
details['sorting_method'] = data['sorting_method']
extractor = MEDIA_TYPES[media_type]['extractor'](**details)
validate_dimension = ValidateDimension()
if isinstance(extractor, MEDIA_TYPES['zip']['extractor']):
extractor.extract()
if db_data.storage == models.StorageChoice.LOCAL or \
(db_data.storage == models.StorageChoice.SHARE and \
isinstance(extractor, MEDIA_TYPES['zip']['extractor'])):
validate_dimension.set_path(upload_dir)
validate_dimension.validate()
if db_task.project is not None and db_task.project.tasks.count(
) > 1 and db_task.project.tasks.first(
).dimension != validate_dimension.dimension:
raise Exception(
f'Dimension ({validate_dimension.dimension}) of the task must be the same as other tasks in project ({db_task.project.tasks.first().dimension})'
)
if validate_dimension.dimension == models.DimensionType.DIM_3D:
db_task.dimension = models.DimensionType.DIM_3D
keys_of_related_files = validate_dimension.related_files.keys()
absolute_keys_of_related_files = [
os.path.join(upload_dir, f) for f in keys_of_related_files
]
# When a task is created, the sorting method can be random and in this case, reinitialization will be with correct sorting
# but when a task is restored from a backup, a random sorting is changed to predefined and we need to manually sort files
# in the correct order.
source_files = absolute_keys_of_related_files if not isBackupRestore else \
[item for item in extractor.absolute_source_paths if item in absolute_keys_of_related_files]
extractor.reconcile(
source_files=source_files,
step=db_data.get_frame_step(),
start=db_data.start_frame,
stop=data['stop_frame'],
dimension=models.DimensionType.DIM_3D,
)
related_images = {}
if isinstance(extractor, MEDIA_TYPES['image']['extractor']):
extractor.filter(lambda x: not re.search(
r'(^|{0})related_images{0}'.format(os.sep), x))
related_images = detect_related_images(extractor.absolute_source_paths,
upload_dir)
if isBackupRestore and not isinstance(extractor, MEDIA_TYPES['video']['extractor']) and db_data.storage_method == models.StorageMethodChoice.CACHE and \
db_data.sorting_method in {models.SortingMethod.RANDOM, models.SortingMethod.PREDEFINED} and validate_dimension.dimension != models.DimensionType.DIM_3D:
# we should sort media_files according to the manifest content sequence
# and we should do this in general after validation step for 3D data and after filtering from related_images
manifest = ImageManifestManager(db_data.get_manifest_path())
manifest.set_index()
sorted_media_files = []
for idx in range(len(extractor.absolute_source_paths)):
properties = manifest[idx]
image_name = properties.get('name', None)
image_extension = properties.get('extension', None)
full_image_path = os.path.join(
upload_dir, f"{image_name}{image_extension}"
) if image_name and image_extension else None
if full_image_path and full_image_path in extractor:
sorted_media_files.append(full_image_path)
media_files = sorted_media_files.copy()
del sorted_media_files
data['sorting_method'] = models.SortingMethod.PREDEFINED
extractor.reconcile(
source_files=media_files,
step=db_data.get_frame_step(),
start=db_data.start_frame,
stop=data['stop_frame'],
sorting_method=data['sorting_method'],
)
db_task.mode = task_mode
db_data.compressed_chunk_type = models.DataChoice.VIDEO if task_mode == 'interpolation' and not data[
'use_zip_chunks'] else models.DataChoice.IMAGESET
db_data.original_chunk_type = models.DataChoice.VIDEO if task_mode == 'interpolation' else models.DataChoice.IMAGESET
def update_progress(progress):
progress_animation = '|/-\\'
if not hasattr(update_progress, 'call_counter'):
update_progress.call_counter = 0
status_message = 'Images are being compressed'
if not progress:
status_message = '{} {}'.format(
status_message,
progress_animation[update_progress.call_counter])
job.meta['status'] = status_message
job.meta['task_progress'] = progress or 0.
job.save_meta()
update_progress.call_counter = (update_progress.call_counter +
1) % len(progress_animation)
compressed_chunk_writer_class = Mpeg4CompressedChunkWriter if db_data.compressed_chunk_type == models.DataChoice.VIDEO else ZipCompressedChunkWriter
if db_data.original_chunk_type == models.DataChoice.VIDEO:
original_chunk_writer_class = Mpeg4ChunkWriter
# Let's use QP=17 (that is 67 for 0-100 range) for the original chunks, which should be visually lossless or nearly so.
# A lower value will significantly increase the chunk size with a slight increase of quality.
original_quality = 67
else:
original_chunk_writer_class = ZipChunkWriter
original_quality = 100
kwargs = {}
if validate_dimension.dimension == models.DimensionType.DIM_3D:
kwargs["dimension"] = validate_dimension.dimension
compressed_chunk_writer = compressed_chunk_writer_class(
db_data.image_quality, **kwargs)
original_chunk_writer = original_chunk_writer_class(original_quality)
# calculate chunk size if it isn't specified
if db_data.chunk_size is None:
if isinstance(compressed_chunk_writer, ZipCompressedChunkWriter):
if not (db_data.storage == models.StorageChoice.CLOUD_STORAGE):
w, h = extractor.get_image_size(0)
else:
img_properties = manifest[0]
w, h = img_properties['width'], img_properties['height']
area = h * w
db_data.chunk_size = max(2, min(72, 36 * 1920 * 1080 // area))
else:
db_data.chunk_size = 36
video_path = ""
video_size = (0, 0)
def _update_status(msg):
job.meta['status'] = msg
job.save_meta()
if settings.USE_CACHE and db_data.storage_method == models.StorageMethodChoice.CACHE:
for media_type, media_files in media.items():
if not media_files:
continue
# replace manifest file (e.g was uploaded 'subdir/manifest.jsonl' or 'some_manifest.jsonl')
if manifest_file and not os.path.exists(
db_data.get_manifest_path()):
shutil.copyfile(os.path.join(upload_dir, manifest_file),
db_data.get_manifest_path())
if upload_dir != settings.SHARE_ROOT:
os.remove(os.path.join(upload_dir, manifest_file))
if task_mode == MEDIA_TYPES['video']['mode']:
try:
manifest_is_prepared = False
if manifest_file:
try:
manifest = VideoManifestValidator(
source_path=os.path.join(
upload_dir, media_files[0]),
manifest_path=db_data.get_manifest_path())
manifest.init_index()
manifest.validate_seek_key_frames()
manifest.validate_frame_numbers()
assert len(manifest) > 0, 'No key frames.'
all_frames = manifest.video_length
video_size = manifest.video_resolution
manifest_is_prepared = True
except Exception as ex:
manifest.remove()
if isinstance(ex, AssertionError):
base_msg = str(ex)
else:
base_msg = 'Invalid manifest file was upload.'
slogger.glob.warning(str(ex))
_update_status(
'{} Start prepare a valid manifest file.'.
format(base_msg))
if not manifest_is_prepared:
_update_status('Start prepare a manifest file')
manifest = VideoManifestManager(
db_data.get_manifest_path())
manifest.link(media_file=media_files[0],
upload_dir=upload_dir,
chunk_size=db_data.chunk_size)
manifest.create()
_update_status('A manifest had been created')
all_frames = len(manifest.reader)
video_size = manifest.reader.resolution
manifest_is_prepared = True
db_data.size = len(range(db_data.start_frame, min(data['stop_frame'] + 1 \
if data['stop_frame'] else all_frames, all_frames), db_data.get_frame_step()))
video_path = os.path.join(upload_dir, media_files[0])
except Exception as ex:
db_data.storage_method = models.StorageMethodChoice.FILE_SYSTEM
manifest.remove()
del manifest
base_msg = str(ex) if isinstance(ex, AssertionError) \
else "Uploaded video does not support a quick way of task creating."
_update_status(
"{} The task will be created using the old method".
format(base_msg))
else: # images, archive, pdf
db_data.size = len(extractor)
manifest = ImageManifestManager(db_data.get_manifest_path())
if not manifest_file:
manifest.link(
sources=extractor.absolute_source_paths,
meta={
k: {
'related_images': related_images[k]
}
for k in related_images
},
data_dir=upload_dir,
DIM_3D=(
db_task.dimension == models.DimensionType.DIM_3D),
)
manifest.create()
else:
manifest.init_index()
counter = itertools.count()
for _, chunk_frames in itertools.groupby(
extractor.frame_range,
lambda x: next(counter) // db_data.chunk_size):
chunk_paths = [(extractor.get_path(i), i)
for i in chunk_frames]
img_sizes = []
for chunk_path, frame_id in chunk_paths:
properties = manifest[manifest_index(frame_id)]
# check mapping
if not chunk_path.endswith(
f"{properties['name']}{properties['extension']}"
):
raise Exception(
'Incorrect file mapping to manifest content')
if db_task.dimension == models.DimensionType.DIM_2D:
resolution = (properties['width'],
properties['height'])
else:
resolution = extractor.get_image_size(frame_id)
img_sizes.append(resolution)
db_images.extend([
models.Image(data=db_data,
path=os.path.relpath(path, upload_dir),
frame=frame,
width=w,
height=h)
for (path, frame), (w,
h) in zip(chunk_paths, img_sizes)
])
if db_data.storage_method == models.StorageMethodChoice.FILE_SYSTEM or not settings.USE_CACHE:
counter = itertools.count()
generator = itertools.groupby(
extractor, lambda x: next(counter) // db_data.chunk_size)
for chunk_idx, chunk_data in generator:
chunk_data = list(chunk_data)
original_chunk_path = db_data.get_original_chunk_path(chunk_idx)
original_chunk_writer.save_as_chunk(chunk_data,
original_chunk_path)
compressed_chunk_path = db_data.get_compressed_chunk_path(
chunk_idx)
img_sizes = compressed_chunk_writer.save_as_chunk(
chunk_data, compressed_chunk_path)
if db_task.mode == 'annotation':
db_images.extend([
models.Image(data=db_data,
path=os.path.relpath(data[1], upload_dir),
frame=data[2],
width=size[0],
height=size[1])
for data, size in zip(chunk_data, img_sizes)
])
else:
video_size = img_sizes[0]
video_path = chunk_data[0][1]
db_data.size += len(chunk_data)
progress = extractor.get_progress(chunk_data[-1][2])
update_progress(progress)
if db_task.mode == 'annotation':
models.Image.objects.bulk_create(db_images)
created_images = models.Image.objects.filter(data_id=db_data.id)
db_related_files = [
models.RelatedFile(data=image.data,
primary_image=image,
path=os.path.join(upload_dir,
related_file_path))
for image in created_images
for related_file_path in related_images.get(image.path, [])
]
models.RelatedFile.objects.bulk_create(db_related_files)
db_images = []
else:
models.Video.objects.create(data=db_data,
path=os.path.relpath(
video_path, upload_dir),
width=video_size[0],
height=video_size[1])
if db_data.stop_frame == 0:
db_data.stop_frame = db_data.start_frame + (
db_data.size - 1) * db_data.get_frame_step()
else:
# validate stop_frame
db_data.stop_frame = min(db_data.stop_frame, \
db_data.start_frame + (db_data.size - 1) * db_data.get_frame_step())
preview = extractor.get_preview()
preview.save(db_data.get_preview_path())
slogger.glob.info("Found frames {} for Data #{}".format(
db_data.size, db_data.id))
_save_task_to_db(db_task)