dcase_util.containers.MetaDataContainer

class dcase_util.containers.MetaDataContainer(*args, **kwargs)

Meta data container class, inherited from ListDictContainer.

Constructor

Parameters

filenamestr, optional

File path

__init__(*args, **kwargs)

Constructor

Parameters

filenamestr, optional

File path

Methods

__init__(*args, **kwargs)	Constructor
add_time(time)	Add time offset to event onset and offset timestamps
append(item)	Append item to the meta data list
clear(/)	Remove all items from list.
copy(/)	Return a shallow copy of the list.
count(value, /)	Return number of occurrences of value.
delimiter([exclude_delimiters])	Use csv.sniffer to guess delimiter for CSV file
detect_file_format([filename])	Detect file format from extension
difference(second_metadata)	Difference of two meta containers
empty()	Check if file is empty
event_inactivity([event_label, ...])	Get inactivity segments between events as event list
event_stat_counts()	Event count statistics
exists()	Checks that file exists
extend(iterable, /)	Extend list by appending elements from the iterable.
filter([filename, file_list, scene_label, ...])	Filter content
filter_time_segment([start, stop, duration, ...])	Filter time segment
get_dump_content(data)	Clean internal content for saving
get_field(field_name[, skip_items_without_field])	Get all data from field.
get_field_unique(field_name)	Get unique data from field.
get_file_information()	Get file information, filename
index(value[, start, stop])	Return first index of value.
insert(index, object, /)	Insert object before index.
intersection(second_metadata)	Intersection of two meta containers
intersection_report(second_metadata)	Intersection report for two meta containers
is_package([filename])	Determine if the file is compressed package.
load([filename, fields, csv_header, ...])	Load event list from delimited text file (csv-formatted)
log([level, show_data, show_stats])	Log container content
log_all([level])	Log container content with all meta data items.
map_events(target_event_label[, ...])	Map events with varying event labels into single target event label
map_tags(target_tag[, source_tags])	Map tags with varying tags into single target tag
pop([index])	Remove and return item at index (default last).
process_events([minimum_event_length, ...])	Process event content
push_processing_chain_item(processor_name[, ...])	Push processing chain item
remove(value, /)	Remove first occurrence of value.
remove_field(field_name)	Remove field from data items
reverse(/)	Reverse IN PLACE.
save([filename, fields, csv_header, ...])	Save content to csv file
scene_stat_counts()	Scene count statistics
search(key, value)	Search in the list of dictionaries
show([mode, indent, show_info, show_data, ...])	Print container content
show_all([mode, indent])	Print container content with all meta data items.
sort(*[, key, reverse])	Sort the list in ascending order and return None.
stats([event_label_list, scene_label_list, ...])	Statistics of the container content
tag_stat_counts()	Tag count statistics
to_event_roll([label_list, time_resolution, ...])	Event roll
to_html([indent, show_info, show_data, ...])	Get container information in a HTML formatted string
to_string([ui, indent, show_info, ...])	Get container information in a string
update(data)	Replace content with given list
validate_format()	Validate file format

Attributes

bytes	File size in bytes
dataset_count	Number of unique dataset identifiers
event_count	Number of events
event_label_count	Number of unique event labels
file_count	Number of files
identifier_count	Number of unique identifiers
logger	Logger instance
max_offset	Find the offset (end-time) of last event
md5	Checksum for file.
scene_label_count	Number of unique scene labels
tag_count	Number of unique tags
unique_datasets	Unique datasets
unique_event_labels	Unique event labels
unique_files	Unique files
unique_identifiers	Unique identifiers
unique_scene_labels	Unique scene labels
unique_source_labels	Unique source labels
unique_tags	Unique tags
valid_formats	Valid file formats