The file list contains the names of all the files in the opened folder which match the selected file name filter (typically *.mp3 *.ogg *.opus *.dsf *.flac *.mpc *.aac *.m4a *.m4b *.m4p *.mp4 *.mp2 *.spx *.tta *.wv *.wma *.wav *.aiff *.ape). A single or multiple files can be selected. To select no file, click into the empty area after the listbox entries. The selection determines the files which are affected by the operations which are available by using the buttons described below.

Besides Name, also other columns Size, Type, Date Modified with file details can be displayed. Columns can be hidden by unchecking their name in the context menu of the list header. The order of the columns can be changed by drag and drop. The sort order can be toggled by clicking on the column header.

The values of the standard tags can also be displayed and edited in columns of the file list.

At the left of the names an icon can be displayed: a disc to show that the file has been modified or information about which tags are present (V1, V2, V1V2 or NO TAG, no icon is displayed if the file has not been read in yet).

Folders are displayed with a folder icon. If a folder is opened, its files are displayed in a hierarchical tree. By selecting files from subfolders, operations can be executed on files in different folders, which is useful if the music collection is organized with a folder for each artist containing folders for albums of this artist.

Clicking the right mouse button inside the file list opens a context menu with the following commands:

A playlist can be created empty or containing the tracks of a folder, see Create Playlist. The playlist file created in such a way can be edited by double click or using Edit from the file list context menu. A dialog with the entries of the playlist is shown. It is possible to open multiple playlists simultaneously.

New entries can be added by drag and drop from the file list, a file manager or another playlist. If an entry is dragged from another playlist, it will be moved or copied depending on the system. To invoke the other operation, respectively, the Shift, Ctrl or Alt (to copy instead of move on macOS®) key has to be pressed. Reordering entries within the playlist is also possible via drag and drop. Alternatively, entries can be moved using the keyboard shortcuts Ctrl+Shift+Up and Ctrl+Shift+Down (on macOS® Command has to be pressed instead of Ctrl). An entry can be removed using the Delete key.

Please note the following: To drag entries from the file list, they have to be held at the left side (near the icons), the same gesture at the right side will perform a multi selection, such an action is hereby still easily possible.

When a playlist has been modified, the changes can be stored using Save or discarded using Cancel. When the window is closed, a confirmation prompt is shown if there are unsaved changes.

Tracks selected in a playlist will be automatically selected in the file list, thereby making it possible to edit their tags.

To execute actions on a playlist, its file must be selected in the file list. Edit from the context menu will lead to the dialog described in this section, and Play will start the media player with the tracks from the playlist. User actions can act on playlists, for example Export Playlist Folder, which copies the files from a playlist into a folder.

The folder list contains the names of the folders in the opened folder, as well as the current (.) and the parent (..) folder. It allows one to quickly change the folder without using the Open command or drag and drop.

Column visibility, order and sorting can be configured as described in the section about the file list.

Shows information about the encoding (MP3, Ogg, Opus, DSF, FLAC, MPC, APE, MP2, MP4, AAC, Speex, TrueAudio, WavPack, WMA, WAV, AIFF), bit rate, sample rate, channels and the length of the file.

The Name line edit contains the name of the file (if only a single file is selected). If this name is changed, the file will be renamed when the Save command is used.

The Format combo box and line edit contains the format to be used when the filename is generated from the first or the second tag. The filename can contain arbitrary characters, even a folder part separated by a slash from the file name, but that folder must already exist for the renaming to succeed. The following special codes are used to insert tag values into the filename:

The format codes are not restricted to the examples given above. Any frame name can be used, for instance unified frame names like %{albumartist}, %{discnumber.1}, %{bpm} or format specific names like %{popm}.

It is possible to prepend and append strings to the replacement for a format code by adding them in double quotes inside the curly braces of a format code. These strings will only be put into the resulting string if the format code yields a nonempty value. For example, if the file name shall both contain the title and the subtitle, one could use %{title} [%{subtitle}] in the format string. But this would result in a string ending with [] if no subtitle frame exists for a file. In order to omit the brackets if no subtitle is present, %{title}%{" ["subtitle"]"} shall be used instead. This will omit the brackets, the leading space and the subtitle if not subtitle exists.

The list of available formats can be edited in the dialog which appears when clicking the Filename from tag button in the File tab of the settings.

A second Format combo box (with arrow down) is used to generate the tags from the filename. If the format of the filename does not match this pattern, a few other commonly used formats are tried.

Some commonly used filename formats are already available in the combo box, but it is also possible to type in some special format into the line edit.

The list of available formats can be edited in the dialog which appears when clicking the Tag from filename button in the File tab of the settings.

Internally, a regular expression is built from the format codes. If advanced regular expressions are required, the format to generate the tags from the filenames can be given as a complete regular expression with captures which are preceded by the format codes, e.g. to extract the track numbers without removal of leading zeros, a format like "/%{track}(\d+) %{title}(.*)" could be used.

From: Tag 1, Tag 2: Sets the filename using the selected format and the first tag or the second tag, respectively.

To: Tag 1, Tag 2: The tags are set from the filename. First, the format specified in Format is used. If the existing filename does not match this format, the following formats are tried:

If a single file is selected, the GUI controls are filled with the values extracted from the filename. If multiple files are selected, the tags of the files are directly set according to the filenames.

The line edit widgets for Title, Artist, Album, Comment, Date, Track Number and Genre are used to edit the corresponding value in the first tag of the selected files. The value will be changed when the file selection is altered or before operations like Save and Quit and when the corresponding check box at the left of the field name is checked. This is useful to change only some values and leave the other values unchanged.

If a single file is selected, all check boxes are checked and the line edit widgets contain the values found in the tags of this file. If a tag is not found in the file, the corresponding empty value is displayed, which is an empty string for the Title, Artist, Album and Comment line edits, 0 for the numerical Date and Track Number edits and an empty selected value for the Genre combo box. The values can be changed and if the corresponding check box is checked, they will be set for the selected file after the selection is changed. The file is then marked as modified by a disk symbol in the file listbox but remains unchanged until the Save command is used.

If multiple files are selected, only the values which are identical in all selected files are displayed. In all other controls, the empty values as described above are displayed. All check boxes are unchecked to avoid unwanted changes. If a value has to be set for all selected files, it can be edited and the check box has to be set. The values will be set for all selected files when the selection is changed and can be saved using the Save command.

The check boxes also control the operation of most commands affecting the tags, such as copy, paste and transfer between tags 1 and 2. To make it easier to use with multiple files where all check boxes are unchecked, these commands behave in the same way when all check boxes are checked and when all check boxes are unchecked.

From Tag 2: The tag 1 fields are set from the corresponding values in tag 2. If a single file is selected, the GUI controls are filled with the values from tag 2. If multiple files are selected, the tags of the files are directly set.

Copy: The copy buffer is filled with the Tag 1 values. Only values with checked check box will be used in subsequent Paste commands.

Paste: Pastes the values from the copy buffer into the GUI controls.

Remove: This will set all GUI controls to their empty values which results in removing all values. The saved file will then contain no tag 1.

The GUI controls function in the same way as described for the Tag 1 section, but the size of the strings is not limited.

For the tag 2 Genre you can also use your own names besides the genres listed in the combo box, just type the name into the line edit.

The tag 2 cannot only contain the same values as the tag 1, the format is built in a flexible way from several frames which are themselves composed of several fields. The tag 2 table shows all the frames which are available in the selected file.

Edit: This will open a window which allows one to edit all fields of the selected frame. If multiple files are selected, the edited fields are applied to all selected files which contain such a frame.

Add: A requester to select the frame type will appear and a frame of the selected type can be edited and added to the file. This works also to add a frame to multiple selected files.

Delete: Deletes the selected frame in the selected files.

Drag album artwork here is shown if the file does not contain embedded cover art. A picture can be added using drag and drop from a browser or file manager and will be displayed here. Picture frames can be edited or added by double clicking on this control.

Some files can have more than two tags, and a third tag section is visible. The following file types can have such a Tag 3 section:

The GUI controls work in the same way as in the Tag 2 section.

For information synchronized with the audio data, a specific editor is available. These frames are supported for ID3v2.3.0 and ID3v2.4.0 tags. To add such a frame, the specific frame name has to be selected in the list which appears when the Add button is clicked - Synchronized Lyrics or Event Timing Codes, respectively. The editor is the same for both types, for the event timing codes, only a predefined set of events is available whereas for the synchronized lyrics, text has to be entered. In the following, editing synchronized lyrics is explained.

A file having an ID3v2 tag is selected, the lyrics editor is entered using Add and selecting Synchronized Lyrics. For an existing Synchronized Lyrics frame, it is selected and Edit is clicked. The player is automatically opened with the current file so that the file can be played and paused to synchronize lyrics.

The settings at the top of the SYLT editor normally do not have to be changed. If the lyrics contains characters which are not present in the Latin 1 character set, changing the text encoding to UTF16 (or UTF8 for ID3v2.4.0) is advisable. For English lyrics and maximum compatibility, ISO-8859-1 should be used.

The Lyrics section has five buttons at the top. Add will add a new time event in the table. The time is taken from the position of the player, thus adding an entry while playing the track will add a line for the currently played position. The events in the table have to be chronologically ordered, therefore the row will be inserted accordingly. Entries with an invalid time are treated specially: If the currently selected row has an invalid time, its time stamp will be replaced by the current time instead of adding a new row. If the current time is not invalid, the first row with an invalid time will be used if present. This behavior should facilitate adding time stamps if the lyrics text is already in the table but the time stamps are missing (which is the case when importing unsynchronized lyrics). Note that the invalid time is represented as 00:00.00, i.e. the same as the time at the absolute beginning of the track, which is not invalid. To make a time invalid, press the Delete key, or use Clear from the context menu. New rows inserted using Insert row from the context menu or created when importing unsynchronized lyrics with From Clipboard or Import also contain invalid time stamps. Rows in the table can be deleted by clicking the Delete button or using Delete rows from the context menu.

Synchronized lyrics can be imported from a file using Import. The expected format is simple or enhanced LRC. If the selected file does not contain a square bracket in the first line, it is supposed to be a simple text file with unsynchronized lyrics. The lines from such a file are then imported having invalid time stamps. The time information can be added using the Add button or by manual entry. It is also possible to import lyrics via copy-paste using From Clipboard. Synchronized lyrics can be written to LRC files using Export. Note that only entries with valid time stamps will be exported and that the entries will be sorted by time. Entries with invalid time won't be stored in the SYLT frame either, so make sure to include all timing information before leaving the dialog.

The ID3 specification[5] suggests a time stamp for each syllable. However most players only support the granularity of a line or sentence. To support both use cases, Kid3 follows the same conventions as SYLT Editor[6]. Text which is entered into the table is assumed to start a new line unless it starts with a space or a hyphen. Exceptions to this rule are possible by starting a line with an underscore ('_') to force continuation or a hash mark ('#') to force a new line. These escape characters are not stored inside the SYLT frame. Inside the SYLT frame, new lines start with a line feed character (hex 0A) whereas continuations do not. When reading SYLT frames, Kid3 checks if the first entry starts with a line feed. If this is not the case, it is assumed that all entries are new lines and that no syllable continuations are used.

While the track is played, the row associated with the current playing position is highlighted, so that the correctness of the synchronization information can be verified. If an offset has to be added to one or more time stamps, this can be accomplished with the Add offset context menu. Negative values can be used to reduce the time. Using Seek to position in the context menu, it is possible to set the playing position to the time of the selected row.

Recommended procedure to add new synchronized lyrics

Import from a freedb.org server is possible using a dialog which appears when From Server: gnudb.org is selected. The artist and album name to search for can be entered in the two topmost fields, the albums which match the query will be displayed when Find is clicked and the results from www.gnudb.org[7] are received. Importing the track data for an album is done by double-clicking the album in the list. The freedb.org server to import from can be selected as well as the CGI path. The imported data is displayed in the preview table of the import dialog. When satisfied with the displayed tracks, they can be imported by terminating the import dialog with OK.

A search on the Discogs server can be performed using Discogs. As in the gnudb.org dialog, you can enter artist and album and then choose from a list of releases. A Token can be entered to use the RESTful Discogs API instead of their web interface, which is often changed, thereby breaking the import parser. You have to register for an account on Discogs[8] and then generate a token on their web site (Settings/Developers, Generate new token). Don't forget to Save Settings after entering the token in order to use it in subsequent requests too. If Standard Tags is marked, the standard information is imported, e.g. artist, album, and title. If Additional Tags is marked, more information is imported if available, e.g. performers, arrangers, or the publisher. If Cover Art is marked, cover art will be downloaded if available.

A search on Amazon can be performed using Amazon. As in the gnudb.org dialog, you can enter artist and album and then choose from a list of releases. If Additional Tags is marked, more information is imported if available, e.g. performers, arrangers, or the publisher. If Cover Art is marked, cover art will be downloaded if available.

You can search in the same way in the release database of MusicBrainz using From MusicBrainz Release. The workflow is the same as described for From gnudb.org.

Import from a MusicBrainz server is possible using the dialog which appears when From MusicBrainz Fingerprint is selected. The Server can be selected as in the freedb import dialog. Below is a table displaying the imported track data. The right column shows the state of the MusicBrainz query, which starts with "Pending" when the dialog is opened. Then the fingerprint is looked up and if it does not yield a result, another lookup using the tags in the file is tried. Thus it can be helpful for a successful MusicBrainz query to store known information (e.g. artist and album) in the tags before the import. If a result was found, the search ends in the state "Recognized", otherwise nothing was found or multiple ambiguous results and one of them has to be selected by the user. OK and Apply use the imported data, Cancel closes the dialog. The closing can take a while since the whole MusicBrainz machinery has to be shut down.

For the import of textual data, From File/Clipboard opens a subdialog, where several preconfigured import formats are available. The first two, "CSV unquoted" and "CSV quoted" can be used to import data which was exported by the Export dialog. The CSV data can be edited with a spreadsheet, and shall be written using tabs as delimiters. Import should then be possible using "CSV quoted", which is more flexible than "CSV unquoted". However, its fields cannot contain any double quotes. If you only export from Kid3 and import later, "CSV unquoted" can be used as a simple format for this purpose. Note that there are also "Export CSV" and "Import CSV" commands in the context menu of the file list, which use scripts to export and import CSV data in a more complete, powerful and flexible way.

The next format, "freedb HTML text", can be used to copy information from an HTML page of freedb.org[9]. Search an album in freedb and if the desired information is displayed in the web browser, copy the contents to the clipboard. Then click the From Clipboard button and the imported tracks will be displayed in the preview table at the top of the dialog. If you are satisfied with the imported data, terminate the dialog with OK, which will insert the data into the tags of the current folder. The destination (Tag 1, Tag 2 or Tag 1 and Tag 2) can be selected with a combo box. The files in the current folder should be in the correct track order to get their tags assigned. This is the case if they are numbered.

The next preconfigured import format, "freedb HTML source", can be used, if the data is available as an HTML document. Import is possible using the From File button, which opens a file selector, or copying its contents from an editor and then importing from clipboard. This format can be useful for offline import, although the HTML document could also be opened in a browser and then be imported in the first format via the clipboard.

More preconfigured formats, e.g. "Track Title Time", are available. An empty custom format can be created with Add to be set by the user. Two lines below the format name can be set with a regular expression to capture the fields from the import text. The first regular expression will be parsed once per document to gather per-album data such as artist, album, year and genre. The second line is tried to match from the start of the document to the end to get track data, usually number and title. The regular expressions include all the features offered by Qt(TM), which is most of the what Perl offers. Bracketing constructs "(..)" create capture buffers for the fields to import and are preceded by Kid3 specific codes to specify which field to capture. The codes are the same as used for the filename format, besides the codes listed below, any frame name is possible:

For example, a track regular expression (second line) to import from an .m3u playlist could be "%{track}(\d+)\s+%{title}(\S[^\r\n]*)\.mp3[\r\n]". All formats can be changed by editing the regular expressions and the name and then clicking Save Settings. They will be stored in the kid3rc file in the configuration folder. This file can be directly edited to have more import formats or it can be deleted to revert to the default formats. Formats can be deleted using Remove.

Accuracy shows an estimation of how good the imported information matches the given tracks. It uses track durations or file names to calculate the level of similarity in percent. Cover Art shows the URL of the album cover image which will be downloaded.

To check whether the imported tracks match the current set of files, the duration of the imported tracks can be compared with the duration of the files. This option can be enabled with the check box Check maximum allowable time difference (sec): and the maximum tolerated difference in time can be set in seconds. If a mismatch in a length is detected, the length is displayed with a red background in the preview table.

If the files are ordered differently than the imported tracks, their assigned tracks have to be changed. This task can be facilitated using the Match with option with the buttons Length, Track, and Title, which will reorder the tracks according to the corresponding field. To correct the assignments manually, a track can be dragged with the left mouse button and the Ctrl key hold down, and then dropped at the new location.

When the import dialog is opened, it contains the actual contents of the tags. The tag type (Tag 1, Tag 2, Tag 1 and Tag 2) can be selected using the Destination combo box. The button on the right of this combo box can be used to revert the table to the current contents of the tags. The check boxes in the first table column can be used to select the tracks which are imported. This can be useful if a folder contains the tracks of both CDs of a double CD and only the tracks of the second CD have to be imported.

To identify the tracks which are imported, it is possible to display the file names or the full paths to the files using the context menu of the table header. The values in the import table can be edited. The revert-button to the right of the Destination combo box can be used to restore the contents of the tags, which can also be useful after changing the Destination.

Almost all dialogs feature a Save Settings button, which can be used to store the dialog specific settings and the window size persistently.

From Tags leads to a subdialog to set tag frames from the contents of other tag frames. This can be used to simply copy information between tags or extract a part from one frame and insert it in another.

As in the import from file/clipboard dialog, there are freely configurable formats to perform different operations. Already preconfigured are formats to copy the Album value to Album Artist, Composer or Conductor, and to extract the Track Number from Title fields which contain a number. There is also a format to extract a Subtitle from a Title field.

The following example explains how to add a custom format, which sets the information from the Subtitle field also in the Comment field. Create a new format using Add button and set a new name, e.g. "Subtitle to Comment". Then enter "%{subtitle}" in Source and "%{comment}(.*)" for Extraction and click Save Settings.

The expression in Source can contain format codes for arbitrary tag frames, multiple codes can be used to combine the contents from different frames. For each track, a text is generated from its tags using the Source format, and the regular expression from Extraction is applied to this text to set new values for the tags. Format codes are used before the capturing parentheses to specify the tag frame where the captured text shall be stored. It works in the same way as for the import from file/clipboard.

Import from Tags... is also directly available from the File menu. The difference between these two functions is that the import dialog subdialog operates on all files of the current folder whereas the menu function operates on the selected files (which can be in different folders). The menu function supports an additional code "%{__return}" to return the extracted value, which can be useful with the CLI and QML interfaces.

The tag type (Tag 1, Tag 2, Tag 1 and Tag 2) can be selected using the Destination combo box.

Profiles determine which servers will be contacted to fetch album information. Some profiles are predefined (All, MusicBrainz, Discogs, Cover Art), custom profiles can be added using the Add button at the right of the Profile combo box.

The table below shows the servers which will be used when importing album information using the selected profile. The import process for an album is finished if all required information has been found, so the order of the rows in the table is important. It can be changed using the Move Up and Move Down buttons. Edit can be used to change an existing entry. The Server selection offers the same servers as can be used in the import functions. Standard Tags, Additional Tags, Cover Art determine the information which shall be fetched from the server. Finally, Accuracy is the minimum accuracy which must be achieved to accept the imported data. If the accuracy is insufficient, the next server in the list will be tried. The same dialog containing the server properties appears when Add is clicked to add a new server entry. Existing entries can be deleted using Remove.

To launch an automatic batch import with the selected profile, click Start. Details about the running import are displayed at the top of the dialog. The process can be aborted with the Abort button.

Because not all browsers support drag and drop of images and the pictures on websites often have a URL, in such cases Kid3 will receive the URL and not the picture. If the URL points to a picture, it will be downloaded. However, if the URL refers to some other web resource, it has to be translated to the corresponding picture. Such mappings are defined in the table URL extraction. The left column Match contains a regular expression which is compared with the URL. If it matches, the captured expressions in parentheses are inserted into the pattern of the right Picture URL column (at the positions marked with \1 etc.). The replaced regular expression contains the URL of the picture. By this means cover art can be imported from Amazon, Google Images, etc. using drag and drop. It is also possible to define your own mappings.

The format settings are similar as in the Import dialog: The topmost field contains the title (e.g. "CSV unquoted"), followed by the header, which will be generated at the begin of the file. The track data follows; it is used for every track. Finally, the trailer can be used to generate some finishing text.

The format fields do not contain regular expressions as in the Import dialog, but only output format expressions with special %-expressions, which will be replaced by values from the tags. The whole thing works like the file name format, and the same codes are used plus some additional codes. Not only the codes listed below but all tag frame names can be used.

A few formats are predefined. "CSV unquoted" separates the fields by tabs. Data in this format can be imported again into Kid3 using the import format with the same name. "CSV quoted" additionally encloses the fields by double quotes, which eases the import into spreadsheet applications. However, the fields shall not contain any double quotes when this format is used. "Extended M3U" and "Extended PLS" generate playlists with extended attributes and absolute path names. "HTML" can be used to generate an HTML page with hyperlinks to the tracks. "Kover XML" creates a file which can be imported by the cover printing program Kover. "Technical Details" provides information about bit rate, sample rate, channels, etc. Finally, "Custom Format" is left empty for definition of a custom format. You can define more formats of your own by adding lines in the file kid3rc in the configuration folder. The other formats can be adapted to your needs.

The Source of the tags to generate the export data (Tag 1 or Tag 2) can be selected with a combo box. Pushing To File or To Clipboard stores the data in a file or on the clipboard. OK and Cancel close the dialog, whereas OK accepts the current dialog settings.

The name of the playlist can be the Same as folder name or use a Format with values from the tags, e.g. "%{artist} - %{album}" to have the artist and album name in the playlist file name. The format codes are the same as for Export. Create new empty playlist will make an empty playlist with the given name. The extension depends on the playlist format.

The location of the generated playlist is determined by the selection of the Create in combo box.

Current folder

Every folder

Top-level folder

The Format of the playlist can be M3U, PLS or XSPF.

If Include only the selected files is checked, only the selected files will be included in the playlist. If a folder is selected, all of its files are selected. If this check box is not activated, all audio files are included in the playlist.

Sort by file name selects the usual case where the files are ordered by file name. With Sort by tag field, it is possible to sort by a format string with values from tag fields. For instance, "%{track.3}" can be used to sort by track number (the ".3" is used to get three digits with leading zeros because strings are used for sorting). It is also possible to use multiple fields, e.g. "%{genre}%{year}" to sort using a string composed of genre and year.

The playlist entries will have relative or absolute file paths depending on whether Use relative path for files in playlist or Use full path for files in playlist is set.

When Write only list of files is set, the playlist will only contain the paths to the files. To generate an extended playlist with additional information, a format string can be set using the Write info using control.

Depending on the number of files, the search might take some time, therefore it can be aborted by closing the dialog.

If a folder separator "/" is found in the format, multiple folders are created. If you want to create a new folder instead of renaming the current folder, in the Action combo box select Create Folder instead of Rename Folder. The Source of the tag information can be chosen between Tag 1 and Tag 2, Tag 1 and Tag 2. A preview for the rename operation performed on the first file can be seen in the From and To sections of the dialog.

Multiple folders can be renamed by selecting them.

When Total number of tracks is checked, the number of tracks will also be set in the tags.

It is possible to number the tracks over multiple folders. The folders have to be expanded and selected.

If Reset counter for each folder is checked, track numbering is restarted with the given number for each folder when multiple folders are selected.

The number tracks dialog can also be used to format existing track numbers without changing the values when the check box left to Start number is deactivated. The total number of tracks will be added if the corresponding check box is active, which can be used to set the total for all selected tracks. If only formatting of the existing numbers is desired, this check box has to be deactivated too.

These codes are replaced with the values for the file, and the resulting strings can be compared with the following operations:

True expressions are replaced by 1, false by 0. True values are represented by 1, true, on and yes, false values by 0, false, off and no. Boolean operations are not, and, or (in this order of precedence) and can be grouped by parentheses.

Some filter rules are predefined and can serve as examples for your own expressions:

All

Filename Tag Mismatch

No Tag 1

No Tag 2

ID3v2.3.0 Tag

ID3v2.4.0 Tag

Tag 1 != Tag 2

Tag 1 == Tag 2

Incomplete

No Picture

Marked

Custom Filter

Tag specific options can be found on the Tags page, which is itself separated into four tabs for Tag 1, Tag 2, Tag 3, and All Tags.

If Mark truncated fields is checked, truncated ID3v1.1 fields will be marked red. The text fields of ID3v1.1 tags can only have 30 characters, the comment only 28 characters. Also the genre and track numbers are restricted, so that fields can be truncated when imported or transferred from ID3v2. Truncated fields and the file will be marked red, and the mark will be removed after the field has been edited.

With Text encoding for ID3v1 it is possible to set the character set used in ID3v1 tags. This encoding is supposed to be ISO-8859-1, so it is recommended to keep this default value. However, there are tags around with different encoding, so it can be set here and the ID3v1 tags can then be copied to ID3v2 which supports Unicode.

The check box Use track/total number of tracks format controls whether the track number field of ID3v2 tags contains simply the track number or additionally the total number of tracks in the folder.

When Genre as text instead of numeric string is checked, all ID3v2 genres will be stored as a text string even if there is a corresponding code for ID3v1 genres. If this option is not set, genres for which an ID3v1 code exists are stored as the number of the genre code (in parentheses for ID3v2.3). Thus the genre Metal is stored as "Metal" or "(9)" depending on this option. Genres which are not in the list of ID3v1 genres are always stored as a text string. The purpose of this option is improved compatibility with devices which do not correctly interpret genre codes.

When WAV files with lowercase id3 chunk is checked, the RIFF chunk used to store ID3v2 tags in WAV files will be named "id3 " instead of "ID3 ". By default, Kid3 and other applications using TagLib accept both the lowercase and the uppercase variant when reading WAV files, but they use "ID3 " when writing ID3v2 tags to WAV files. As there exist other applications which only accept "id3 " (e.g. JRiver Media Center and foobar2000), this option can be used to create tags which can be read by such applications.

When Mark standard violations is checked, ID3v2 fields which violate the standard will be marked red. Details about the violation are shown in a tooltip:

The ID3 standard documents are available online:

Text encoding defines the default encoding used for ID3v2 frames and can be set to ISO-8859-1, UTF16, or UTF8. UTF8 is not valid for ID3v2.3.0 frames; if it is set, UTF16 will be used instead. For ID3v2.4.0 frames, all three encodings are possible.

Version used for new tags determines whether new ID3v2 tags are created as version 2.3.0 or 2.4.0.

Track number digits is the number of digits in Track Number fields. Leading zeros are used to pad. For instance, with a value of 2 the track number 5 is set as "05".

The combo box Comment field name is only relevant for Ogg/Vorbis and FLAC files and sets the name of the field used for comments. Different applications seem to use different names, "COMMENT" for instance is used by XMMS, whereas Amarok uses "DESCRIPTION".

The format of pictures in Ogg/Vorbis files is determined by Picture field name, which can be "METADATA_BLOCK_PICTURE" or "COVERART". The first is the official standard and uses the same format as pictures in FLAC tags. "COVERART" is an earlier unofficial way to include pictures in Vorbis comments. It can be used for compatibility with legacy players.

If the Mark if larger than (bytes) check box is activated, files containing embedded album cover art exceeding the given size in bytes are marked red. This can be used to find files containing oversized pictures which are not accepted by some applications and players. The default value is 131072 bytes (128 KB).

Custom Genres can be used to define genres which are not available in the standard genre list, e.g. "Gothic Metal". Such custom genres will appear in the Genre combo box of Tag 2. For ID3v1.1 tags, only the predefined genres can be used.

The list of custom genres can also be used to reduce the number of genres available in the Genre combo box to those typically used. If your collection mostly contains music in the genres Metal, Gothic Metal, Ancient and Hard Rock, you can enter those genres and mark Show only custom genres. The Tag 2 Genre combo box will then only contain those four genres and you will not have to search through the complete genres list for them. In this example, only Metal and Hard Rock will be listed in the tag 1 genres list, because those two custom genres entries are standard genres. If Show only custom genres is not active, the custom genres can be found at the end of the genres list.

In Custom Frames, up to eight custom frame names can be defined, which can then be used like the unified frames, for example as quick access frames.

Quick Access Frames defines which frame types are always shown in the Tag 2 section. Such frames can then be added without first using the Add button. The order of these quick access frames can be changed by dragging and dropping items.

The combo box Track number field name is only relevant for RIFF INFO and sets the name of the field used for track numbers. Track numbers are not specified in the original RIFF standard, there are applications which use "ITRK", others use "IPRT".

Tag Format contains options for the format of the tags. When Automatically apply format is checked, the format configuration is automatically used while editing text in the line edits. Validation enables validators in the controls with track/total and date/time values. The Case conversion can be set to No changes, All lowercase, All uppercase, First letter uppercase or All first letters uppercase. To use locale-aware conversion between lowercase and uppercase characters, a locale can be selected in the combobox below. The string replacement list can be set to arbitrary string mappings. To add a new mapping, select the From cell of a row and insert the text to replace, then go to the To column and enter the replacement text. When the text to replace starts and ends with a slash ("/"), a regular expression is used. For regular expressions containing capturing groups, occurrences of \1, \2, ... in To are replaced with the string captured by the corresponding capturing group. To remove a mapping set the From cell to an empty value (e.g. by first typing space and then backspace). Inserting and deleting rows is also possible using a context menu which appears when the right mouse button is clicked. Replacement is only active, if the String replacement check box is checked.

The table in Rating contains the mapping of star ratings to the effective values stored in the tag. The frames with rating information are listed in the Rating row of the frame list. For these frames, the rating can be set by giving a number of stars out of five stars. Different tag formats and different applications use different values to map the star rating to the value stored in the tag. In order to display the correct number of stars, Kid3 will look up a map in this table. The key to look up the mapping is the frame name, for example "RATING" as used for Vorbis comments or "IRTD" for RIFF INFO. For ID3v2 tags, a combined key is used consisting of the frame ID "POPM" of the Popularimeter frame and its "Email" field, separated by a dot. Therefore, different keys for ID3v2 exist, e.g. "POPM.Windows Media Player 9 Series" for the mapping used by Windows Media Player and Explorer, and simply "POPM" for POPM frames with an empty "Email" field. As multiple entries for "POPM" can exist, their order is important. When Kid3 adds a new Popularimeter frame, it will use the first "POPM" entry to determine the value to be written into the "Email" field. This value will then specify the mapping to be used for star ratings. The first entry is also used if no key was found, it is therefore the default entry.

Besides the Name column containing the keys, the table has columns 1 to 5 for the values to be stored when the corresponding number of stars is given. The other way round, the values determine the number of stars which are displayed for the value stored in the frame. For instance, the row in the table below contains the values 1, 64, 128, 196, 255. The thresholds for the number of stars to be displayed lay between these values and are compatible with what the Windows® Explorer uses.

Table 1. Entry in Rating Table

On the page
Files the check box Load last-opened files can be marked so that Kid3 will open and select the last selected file when it is started the next time. Preserve file timestamp can be checked to preserve the file modification time stamp. Filename for cover sets the name which is suggested when an embedded image is exported to a file. With Text encoding (Export, Playlist) the encoding used when writing files can be set. The default System can be changed for example if playlists have to be used on a different device.

If Mark changes is active, changed fields are marked with a light gray label background.

The section File List determines which files are displayed in the file list. A Filter can be used to restrict the items in this list to files with supported extensions. To explicitly specify which folders to display in the file list or exclude certain folders, the options Include folders and Exclude folders can be used. They can contain wildcard expressions, for instance */Music/* to include only the Music folder, or */iTunes/* to exclude the iTunes folder from the file list. If multiple such expressions have to be used, they can be separated by spaces or semicolons.

The buttons Filename from tag and Tag from filename in section Format open dialogs to edit the formats which are available in the Format combo boxes (with arrows up and down), which can be found in the File section of the main window.

Filename Format contains options for the format of the filenames. The same options as in Tag Format are available.

Additionally, the Maximum length allowed for file names can be set. Most modern file systems have a limit of 255 characters, but if you want to burn the files to CD, you should set the limit to 64. If Use for playlist and folder names is checked, the file name format is also used when creating playlists and renaming folders.

The User Actions page contains a table with the commands which are available in the context menu of the file list. For critical operations such as deleting files, it is advisable to mark Confirm to pop up a confirmation dialog before executing the command. Output can be marked to see the output written by console commands (standard output and standard error). Name is the name displayed in the context menu. Command is the command line to be executed. Arguments can be passed using the following codes:

The special code @separator can be set as a command to insert a separator into the user actions context menu. Menu items can be put into a submenu by enclosing them with @beginmenu and @endmenu commands. The name of the submenu is determined by the Name column of the @beginmenu command.

To execute QML scripts, @qml is used as a command name. The path to the QML script is passed as a parameter. The provided scripts can be found in the folder %{qmlpath}/script/ (on Linux® typically /usr/share/kid3/qml/script/, on Windows qml/script/ inside the installation folder, and on macOS® in the app folder kid3.app/Contents/Resources/qml/script/). Custom scripts can be stored in any folder. If the QML code uses GUI components, @qmlview shall be used instead of @qml. Additional parameters are passed to the QML script where they will be available via the getArguments() function. An overview of some functions and properties which are available in QML can be found in the appendix QML Interface.

The command which will be inserted with %{browser} can be defined in the Web browser line edit above. Commands starting with %{browser} can be used to fetch information about the audio files from the web, for instance

%{browser} http://lyricwiki.org/%u{artist}:%u{title}

will query the lyrics for the current song in LyricWiki[12]. The "u" in %u{artist} and %u{title} is used to URL-encode the artist %{artist} and song %{title} information. It is easy to define your own queries in the same way, e.g. an image search with Google[13]:

%{browser} http://images.google.com/images?q=%u{artist}%20%u{album}

To add album cover art to tag 2, you can search for images with Google or Amazon using the commands described above. The picture can be added to the tag with drag and drop. You can also add an image with Add, then select the Picture frame and import an image file or paste from the clipboard. Picture frames are supported for ID3v2, MP4, FLAC, Ogg and ASF tags.

To add and delete entries in the table, a context menu can be used.

The Network page contains only a field to insert the proxy address and optionally the port, separated by a colon. The proxy will be used when importing from an Internet server when the check box is checked.

In the Plugins page, available plugins can be enabled or disabled. The plugins are separated into two sections. The Metadata Plugins & Priority list contains plugins which support audio file formats. The order of the plugins is important because they are tried from top to bottom. Some formats are supported by multiple plugins, so files will be opened with the first plugin supporting them. The TaglibMetadata supports most formats, if it is at the top of the list, it will open most of the files. If you want to use a different plugin for a file format, make sure that it is listed before the TaglibMetadata plugin. Details about the metadata plugin and why you may want to use them instead of TagLib are listed below.

The Available Plugins section lists the remaining plugins. Their order is not important, but they can be enabled or disabled using the check boxes.

Plugins which are disabled will not be loaded. This can be used to optimize resource usage and startup time. The settings on this page take only effect after a restart of Kid3.

help [COMMAND-NAME]

Displays help about the parameters of COMMAND-NAME or about all commands if no command name is given.

timeout [default | off | TIME]

Overwrite the default command timeout. The CLI commands abort after a command specific timeout is expired. This timeout is 10 seconds for ls and albumart, 60 seconds for autoimport and filter, and 3 seconds for all other commands. If a huge number of files has to be processed, these timeouts may be too restrictive, thus the timeout for all commands can be set to TIME ms, switched off altogether or be left at the default values.

exit [force]

Exit application. If there are modified unsaved files, the force parameter is required.

cd [FOLDER]

If no FOLDER is given, change to the home folder. If a folder is given, change into the folder. If one or more file paths are given, change to their common folder and select the files.

pwd

Print the filename of the current working folder.

ls

List the contents of the current folder. This corresponds to the file list in the Kid3 GUI. Five characters before the file names show the state of the file.

kid3-cli> ls
  1-- 01 Intro.mp3
> 12- 02 We Only Got This One.mp3
 *1-- 03 Outro.mp3

In this example, all files have a tag 1, the second file also has a tag 2 and it is selected. The third file is modified.

save

select [all | none | first | previous | next | FILE...]

To select all files, enter select all, to deselect all files, enter select none. To traverse the files in the current folder start with select first, then go forward using select next or backward using select previous. Specific files can be added to the current selection by giving their file names. Wildcards are possible, so select *.mp3 will select all MP3 files in the current folder.

kid3-cli> select first
kid3-cli> ls
> 1-- 01 Intro.mp3
  12- 02 We Only Got This One.mp3
 *1-- 03 Outro.mp3
kid3-cli> select next
kid3-cli> ls
  1-- 01 Intro.mp3
> 12- 02 We Only Got This One.mp3
 *1-- 03 Outro.mp3
kid3-cli> select *.mp3
kid3-cli> ls
> 1-- 01 Intro.mp3
> 12- 02 We Only Got This One.mp3
>*1-- 03 Outro.mp3

tag [TAG-NUMBERS]

Many commands have an optional TAG-NUMBERS parameter, which specifies whether the command operates on tag 1, 2, or 3. If this parameter is omitted, the default tag numbers are used, which can be set by this command. At startup, it is set to 12 which means that information is read from tag 2 if available, else from tag 1; modifications are done on tag 2. The TAG-NUMBERS can be set to 1, 2, or 3 to operate only on the corresponding tag. If the parameter is omitted, the current setting is displayed.

get [all | FRAME-NAME] [TAG-NUMBERS]

This command can be used to read the value of a specific tag frame or get information about all tag frames (if the argument is omitted or all is used). Modified frames are marked with a '*'.

kid3-cli> get
File: MPEG 1 Layer 3 192 kbps 44100 Hz Joint Stereo
  Name: 01 Intro.mp3
Tag 1: ID3v1.1
  Title         Intro
  Artist        One Hit Wonder
  Album         Let's Tag
  Date          2013
  Track Number  1
  Genre         Pop
kid3-cli> get title
Intro

To save the contents of a picture frame to a file, use

get picture:'/path/to/folder.jpg'

To save synchronized lyrics to an LRC file, use

get SYLT:'/path/to/lyrics.lrc'

It is possible to get only a specific field from a frame, for example get POPM.Email for the Email field of a Popularimeter frame. If a file has multiple frames of the same kind, the different frames can be indexed with brackets, for example the first performer from a Vorbis comment can be retrieved using get performer[0], the second using get performer[1].

The pseudo field name "selected" can be used to check if a frame is selected, for example get artist.selected will return 1 if the artist frame is selected, else 0.

set {FRAME-NAME} {FRAME-VALUE} [TAG-NUMBERS]

This command sets the value of a specific tag frame. If FRAME-VALUE is empty, the frame is deleted.

kid3-cli> set remixer 'O.H. Wonder'

To set the contents of a picture frame from a file, use

set picture:'/path/to/folder.jpg' 'Picture Description'

To set synchronized lyrics from an LRC file, use

set SYLT:'/path/to/lyrics.lrc' 'Lyrics Description'

To set a specific field of a frame, the field name can be given after a dot, e.g. to set the Counter field of a Popularimeter frame, use

set POPM.Counter 5

An application for field specifications is the case where you want a custom TXXX frame with "rating" description instead of a standard Popularimeter frame (this seems to be used by some plugins). You can create such a TXXX rating frame with kid3-cli, however, you have to first create a TXXX frame with description "rating" and then set the value of this frame to the rating value.

kid3-cli> set rating ""
kid3-cli> set TXXX.Description rating
kid3-cli> set rating 5

The first command will delete an existing POPM frame, because if such a frame exists, set rating 5 would set the POPM frame and not the TXXX frame. Another possibility would be to use set TXXX.Text 5, but this would only work if there is no other TXXX frame present.

To set multiple frames of the same kind, an index can be given in brackets, e.g. to set multiple performers in a Vorbis comment, use

kid3-cli> set performer[0] 'Liza don Getti (soprano)'
kid3-cli> set performer[1] 'Joe Barr (piano)'

To select certain frames before a copy, paste or remove action, the pseudo field name "selected" can be used. Normally, all frames are selected, to deselect all, use set '*.selected' 0, then for example set artist.selected 1 to select the artist frame.

revert

Revert all modifications in the selected files (or all files if no files are selected).

import {FILE} {FORMAT-NAME} [TAG-NUMBERS]

Tags are imported from the file FILE in the format with the name FORMAT-NAME (e.g. "CSV unquoted", see Import).

If tags is given for FILE, tags are imported from other tags. Instead of FORMAT-NAME parameters SOURCE and EXTRACTION are required, see Import from Tags. To apply the import from tags on the selected files, use tagsel instead of tags. This function also supports output of the extracted value by using an EXTRACTION with the value %{__return}(.+).

autoimport [PROFILE-NAME] [TAG-NUMBERS]

Batch import using profile PROFILE-NAME (see Automatic Import, "All" is used if omitted).

albumart {URL} [all]

Set the album artwork by downloading a picture from URL. The rules defined in the Browse Cover Art dialog are used to transform general URLs (e.g. from Amazon) to a picture URL. To set the album cover from a local picture file, use the set command.

kid3-cli> albumart
http://www.amazon.com/Versus-World-Amon-Amarth/dp/B000078DOC

export {FILE} {FORMAT-NAME} [TAG-NUMBERS]

Tags are exported to file FILE in the format with the name FORMAT-NAME (e.g. "CSV unquoted", see Export).

playlist

Create playlist in the format set in the configuration, see Create Playlist.

filenameformat

Apply file name format set in the configuration, see Apply Filename Format.

tagformat

Apply tag name format set in the configuration, see Apply Tag Format.

textencoding

Apply text encoding set in the configuration, see Apply Text Encoding.

renamedir [FORMAT] [create | rename | dryrun] [TAG-NUMBERS]

Rename or create folders from the values in the tags according to a given FORMAT (e.g. %{artist} - %{album}, see Rename Folder), if no format is given, the format defined in the Rename folder dialog is used. The default mode is rename; to create folders, create must be given explicitly. The rename actions will be performed immediately, to just see what would be done, use the dryrun option.

numbertracks [TRACK-NUMBER] [TAG-NUMBERS]

Number the selected tracks starting with TRACK-NUMBER (1 if omitted).

filter [FILTER-NAME | FILTER-FORMAT]

Filter the files so that only the files matching the FILTER-FORMAT are visible. The name of a predefined filter expression (e.g. "Filename Tag Mismatch") can be used instead of a filter expression, see Filter.

kid3-cli> filter '%{title} contains "tro"'
Started
  /home/urs/One Hit Wonder - Let's Tag
+ 01 Intro.mp3
- 02 We Only Got This One.mp3
+ 03 Outro.mp3
Finished
kid3-cli> ls
  1-- 01 Intro.mp3
  1-- 03 Outro.mp3
kid3-cli> filter All
Started
  /home/urs/One Hit Wonder - Let's Tag
+ 01 Intro.mp3
+ 02 We Only Got This One.mp3
+ 03 Outro.mp3
Finished
kid3-cli> ls
  1-- 01 Intro.mp3
  12- 02 We Only Got This One.mp3
  1-- 03 Outro.mp3

to24

to23

fromtag [FORMAT] [TAG-NUMBERS]

Set the file names of the selected files from values in the tags, for example fromtag '%{track} - %{title}' 1. If no format is specified, the format set in the GUI is used.

totag [FORMAT] [TAG-NUMBERS]

Set the tag frames from the file names, for example totag '%{albumartist} - %{album}/%{track} %{title}' 2. If no format is specified, the format set in the GUI is used. If the format of the filename does not match this pattern, a few other commonly used formats are tried.

syncto {TAG-NUMBER}

Copy the tag frames from one tag to the other tag, e.g. to set the ID3v2 tag from the ID3v1 tag, use syncto 2.

copy [TAG-NUMBER]

Copy the tag frames of the selected file to the internal copy buffer. They can then be set on another file using the paste command.

To copy only a subset of the frames, use the "selected" pseudo field with the set command. For example, to copy only the disc number and copyright frames, use

set '*.selected' 0
set discnumber.selected 1
set copyright.selected 1
copy

paste [TAG-NUMBER]

Set tag frames from the contents of the copy buffer in the selected files.

remove [TAG-NUMBER]

Remove a tag.

It is possible to remove only a subset of the frames by selecting them as described in the copy command.

config [OPTION] [VALUE]

Query or set a configuration option.

The OPTION consists of a group name and a property name separated by a dot. When no OPTION is given, all available groups are displayed. If only a group name is given, all available properties of the group are displayed. For a given group and property, the currently configured value is displayed. To change the setting, the new value can be passed as a second argument.

If the value of a setting is a list, all list elements have to be given as arguments. This means that to append an element to an existing list of elements, all existing elements have to be passed followed by the new element. In such a situation, it is easier to use the JSON mode, where the current list can be copied with the new element appended.

execute [@qml] {FILE} [ARGS]

Execute a QML script or an executable.

Without @qml a program is executed with arguments. When @qml is given as the first argument, the following arguments are the QML script and its arguments. For example, the tags of a folder can be exported to the file export.csv with the following command.

kid3-cli -c "execute @qml
/usr/share/kid3/qml/script/ExportCsv.qml export.csv"
/path/to/folder/

Here export.csv is the argument for the ExportCsv.qml script, whereas /path/to/folder/ is the FILE argument for kid3-cli.

kid3-cli -c "set title 'I\'ll be there for you'" /path/to/folder

kid3-cli -c "autoimport 'Cover Art'" /path/to/folder

kid3-cli -c "set comment '' 1" -c "set comment '' 2" \
-c "tagformat 1" -c "tagformat 2" /path/to/folder/*.mp3

kid3-cli -c autoimport -c "syncto 1" -c fromtag -c playlist \
  /path/to/folder/*.mp3

kid3-cli -c "filter 'ID3v2.4.0 Tag'" -c "select all" -c to23 \
  -c "set arranger ''" /path/to/folder

#!/usr/bin/env python3
# Generate iTunes Sound Check from ReplayGain.
import os, sys, subprocess
def rg2sc(dirpath):
  for root, dirs, files in os.walk(dirpath):
    for name in files:
      if name.endswith(('.mp3', '.m4a', '.aiff', '.aif')):
        fn = os.path.join(root, name)
        rg = subprocess.check_output([
          'kid3-cli', '-c', 'get "replaygain_track_gain"',
           fn]).strip()
        if rg.endswith(b' dB'):
          rg = rg[:-3]
        try:
          rg = float(rg)
        except ValueError:
          print('Value %s of %s in not a float' % (rg, fn))
          continue
        sc = (' ' + ('%08X' % int((10 ** (-rg / 10)) * 1000) )) * 10
        subprocess.call([
          'kid3-cli', '-c', 'set iTunNORM "%s"' % sc, fn])
if __name__ == '__main__':
  rg2sc(sys.argv[1])

kid3-cli> {"method":"set","params":["artist","An Artist"]}
{"result":null}
kid3-cli> {"method":"get","params":["artist",2]}
{"result":"An Artist"}
kid3-cli> {"method": "get", "params": ["artist"]}
{
    "result": "An Artist"
}
kid3-cli> {"jsonrpc":"2.0","id":"123","method":"get","params":["artist"]}
{"id":"123","jsonrpc":"2.0","result":"An Artist"}

% cmake .
% make
% make install

dbus-send --dest=org.kde.kid3 --print-reply=literal \
/Kid3 org.kde.Kid3.setFrame int32:2 string:'Artist' \
string:'One Hit Wonder'

or easier with Qt(TM)'s qdbus (qdbusviewer can be used to explore the interface in a GUI):

qdbus org.kde.kid3 /Kid3 setFrame 2 Artist \
'One Hit Wonder'

boolean openDirectory(string path);

path

Returns true if OK.

unloadAllTags(void);

boolean save(void);

Returns true if OK.

string getErrorMessage(void);

Returns detailed error message.

revert(void);

boolean batchImport(int32 tagMask, string profileName);

tagMask

profileName

boolean importFromFile(int32 tagMask, string path, int32 fmtIdx);

tagMask

path

fmtIdx

Returns true if OK.

importFromTags(int32 tagMask, string source, string extraction);

tagMask

source

extraction

array importFromTagsToSelection(int32 tagMask, string source, string extraction);

tagMask

source

extraction

returnValues

downloadAlbumArt(string url, boolean allFilesInDir);

url

allFilesInDir

boolean exportToFile(int32 tagMask, string path, int32 fmtIdx);

tagMask

path

fmtIdx

Returns true if OK.

boolean createPlaylist(void);

Returns true if OK.

array getPlaylistItems(string path);

path

Returns list of absolute paths to playlist items.

boolean setPlaylistItems(string path, array items);

path

items

Returns true if OK, false if not all items were found and added or saving failed.

quit(void);

selectAll(void);

deselectAll(void);

boolean firstFile(void);

Returns true if there is a first file.

boolean previousFile(void);

Returns true if there is a previous file.

boolean nextFile(void);

Returns true if there is a next file.

boolean selectFirstFile(void);

Returns true if there is a first file.

boolean selectPreviousFile(void);

Returns true if there is a previous file.

boolean selectNextFile(void);

Returns true if there is a next file.

boolean selectCurrentFile(void);

Returns true if there is a current file.

boolean expandDirectory(void);

A file list item is a folder if getFileName() returns a name with '/' as the last character.

Returns true if current file item is a folder.

applyFilenameFormat(void);

applyTagFormat(void);

applyTextEncoding(void);

boolean setDirNameFromTag(int32 tagMask, string format, boolean create);

tagMask

format

create

Returns true if OK, else the error message is available using getErrorMessage().

numberTracks(int32 tagMask, int32 firstTrackNr);

tagMask

firstTrackNr

filter(string expression);

expression

convertToId3v24(void);

convertToId3v23(void);

Returns true if OK.

string getDirectoryName(void);

Returns absolute path of folder.

string getFileName(void);

Returns true absolute file name, ends with "/" if it is a folder.

setFileName(string name);

name

The file will be renamed when the folder is saved.

setFileNameFormat(string format);

format

setFileNameFromTag(int32 tagMask);

tagMask

string getFrame(int32 tagMask, string name);

tagMask

name

To get binary data like a picture, the name of a file to write can be added after the name, e.g. "Picture:/path/to/file". In the same way, synchronized lyrics can be exported, e.g. "SYLT:/path/to/file".

Returns value of frame.

boolean setFrame(int32 tagMask, string name, string value);

tagMask

name

value

For tag 2 (tagMask 2), if no frame with name exists, a new frame is added, if value is empty, the frame is deleted. To add binary data like a picture, a file can be added after the name, e.g. "Picture:/path/to/file". "SYLT:/path/to/file" can be used to import synchronized lyrics.

Returns true if OK.

array of string getTag(int32 tagMask);

tagMask

Returns list with alternating frame names and values.

array of string getInformation(void);

Properties are Format, Bitrate, Samplerate, Channels, Duration, Channel Mode, VBR, Tag 1, Tag 2. Properties which are not available are omitted.

Returns list with alternating property names and values.

setTagFromFileName(int32 tagMask);

tagMask

setTagFromOtherTag(int32 tagMask);

tagMask

copyTag(int32 tagMask);

tagMask

pasteTag(int32 tagMask);

tagMask

removeTag(int32 tagMask);

tagMask

reparseConfiguration(void);

Automated configuration changes are possible by modifying the configuration file and then reparsing the configuration.

playAudio(void);

import Kid3 1.0
Kid3Script {
  onRun: {
    console.log("Hello world, folder is", app.dirName)
    Qt.quit()
  }
}

kid3-cli -c "execute @qml /path/to/Example.qml"

import Kid3 1.0
Kid3Script {
  onRun: {
    app.firstFile()
    do {
      if (app.selectionInfo.tag(Frame.Tag_2).tagFormat) {
        console.log(app.getFrame(tagv2, "title"))
      }
    } while (app.nextFile())
  }
}

import Kid3 1.0
Kid3Script {
  onRun: {
    function doWork() {
      if (app.selectionInfo.tag(Frame.Tag_2).tagFormat) {
        console.log(app.getFrame(tagv2, "title"))
      }
      if (!app.nextFile()) {
        Qt.quit()
      } else {
        setTimeout(doWork, 1)
      }
    }
    app.firstFile()
    doWork()
  }
}

import Kid3 1.1
Kid3Script {
  onRun: {
    function doWork() {
      if (app.selectionInfo.tag(Frame.Tag_2).tagFormat) {
        app.setFrame(tagv2, "*.selected", false)
        app.setFrame(tagv2, "discnumber.selected", true)
        app.setFrame(tagv2, "copyright.selected", true)
        app.copyTags(tagv2)
      }
      if (!nextFile()) {
        Qt.quit()
      } else {
        setTimeout(doWork, 1)
      }
    }
    firstFile()
    doWork()
  }
}

Kid3Script is a regular QML component located inside the plugin folder. You could use another QML component just as well. Using Kid3Script makes it easy to start the script function using the onRun signal handler. Moreover it offers some functions:

onRun: Signal handler which is invoked when the script is started
tagv1, tagv2, tagv2v1: Constants for tag parameters
script: Access to scripting functions
configs: Access to configuration objects
getArguments(): List of script arguments
isStandalone(): true if the script was not started from within Kid3
setTimeout(callback, delay): Starts callback after delay ms
firstFile(): To first selected file
nextFile(): To next selected file

As JavaScript and therefore QML too has only a limited set of functions for scripting, the script object has some additional methods, for instance:

script.properties(obj): String with Qt properties
script.writeFile(filePath, data): Write data to file, true if OK
script.readFile(filePath): Read data from file
script.removeFile(filePath): Delete file, true if OK
script.fileExists(filePath): true if file exists
script.fileIsWritable(filePath): true if file is writable
script.getFilePermissions(filePath): Get file permission mode bits
script.setFilePermissions(filePath, modeBits): Set file permission mode bits
script.classifyFile(filePath): Get class of file (folder "/", symlink "@", exe "*",
  file " ")
script.renameFile(oldName, newName): Rename file, true if OK
script.copyFile(source, dest): Copy file, true if OK
script.makeDir(path): Create folder, true if OK
script.removeDir(path): Remove folder, true if OK
script.tempPath(): Path to temporary folder
script.musicPath(): Path to music folder
script.listDir(path, [nameFilters], [classify]): List folder entries
script.system(program, [args], [msecs]): Synchronously start a system command,
  [exit code, standard output, standard error] if not timeout
script.systemAsync(program, [args], [callback]): Asynchronously start a system
command, callback will be called with [exit code, standard output, standard
error]
script.getEnv(varName): Get value of environment variable
script.setEnv(varName, value): Set value of environment variable
script.getQtVersion(): Qt version string, e.g. "5.4.1"
script.getDataMd5(data): Get hex string of the MD5 hash of data
script.getDataSize(data): Get size of byte array
script.dataToImage(data, [format]): Create an image from data bytes
script.dataFromImage(img, [format]): Get data bytes from image
script.loadImage(filePath): Load an image from a file
script.saveImage(img, filePath, [format]): Save an image to a file, true if OK
script.imageProperties(img): Get properties of an image, map containing
  "width", "height", "depth" and "colorCount", empty if invalid image
script.scaleImage(img, width, [height]): Scale an image, returns scaled image

Using QML, a large part of the Kid3 functions are accessible. The API is similar to the one used for D-Bus. For details, refer to the respective notes.

app.openDirectory(path): Open folder
app.unloadAllTags(): Unload all tags
app.saveDirectory(): Save folder
app.revertFileModifications(): Revert
app.importTags(tag, path, fmtIdx): Import file
app.importFromTags(tag, source, extraction): Import from tags
app.importFromTagsToSelection(tag, source, extraction): Import from tags of selected files
app.downloadImage(url, allFilesInDir): Download image
app.exportTags(tag, path, fmtIdx): Export file
app.writePlaylist(): Write playlist
app.getPlaylistItems(path): Get items of a playlist
app.setPlaylistItems(path, items): Set items of a playlist
app.selectAllFiles(): Select all
app.deselectAllFiles(): Deselect
app.firstFile([select], [onlyTaggedFiles]): To first file
app.nextFile([select], [onlyTaggedFiles]): To next file
app.previousFile([select], [onlyTaggedFiles]): To previous file
app.selectCurrentFile([select]): Select current file
app.selectFile(path, [select]): Select a specific file
app.getSelectedFilePaths([onlyTaggedFiles]): Get paths of selected files
app.requestExpandFileList(): Expand all
app.applyFilenameFormat(): Apply filename format
app.applyTagFormat(): Apply tag format
app.applyTextEncoding(): Apply text encoding
app.numberTracks(nr, total, tag, [options]): Number tracks
app.applyFilter(expr): Filter
app.convertToId3v23(): Convert ID3v2.4.0 to ID3v2.3.0
app.convertToId3v24(): Convert ID3v2.3.0 to ID3v2.4.0
app.getFilenameFromTags(tag): Filename from tags
app.getTagsFromFilename(tag): Filename to tags
app.getAllFrames(tag): Get object with all frames
app.getFrame(tag, name): Get frame
app.setFrame(tag, name, value): Set frame
app.getPictureData(): Get data from picture frame
app.setPictureData(data): Set data in picture frame
app.copyToOtherTag(tag): Tags to other tags
app.copyTags(tag): Copy
app.pasteTags(tag): Paste
app.removeTags(tag): Remove
app.playAudio(): Play
app.readConfig(): Read configuration
app.applyChangedConfiguration(): Apply configuration
app.dirName: Folder name
app.selectionInfo.fileName: File name
app.selectionInfo.filePath: Absolute file path
app.selectionInfo.detailInfo: Format details
app.selectionInfo.tag(Frame.Tag_1).tagFormat: Tag 1 format
app.selectionInfo.tag(Frame.Tag_2).tagFormat: Tag 2 format
app.selectionInfo.formatString(tag, format): Substitute codes in format string
app.selectFileName(caption, dir, filter, saveFile): Open file dialog to
select a file
app.selectDirName(caption, dir): Open file dialog to select a folder

For asynchronous operations, callbacks can be connected to signals.

function automaticImport(profile) {
  function onAutomaticImportFinished() {
    app.batchImporter.finished.disconnect(onAutomaticImportFinished)
  }
  app.batchImporter.finished.connect(onAutomaticImportFinished)
  app.batchImport(profile, tagv2)
}
function renameDirectory(format) {
  function onRenameActionsScheduled() {
    app.renameActionsScheduled.disconnect(onRenameActionsScheduled)
    app.performRenameActions()
  }
  app.renameActionsScheduled.connect(onRenameActionsScheduled)
  app.renameDirectory(tagv2v1, format, false)
}

The different configuration sections are accessible via methods of configs. Their properties can be listed in the QML console.

script.properties(configs.networkConfig())

Properties can be set:

configs.networkConfig().useProxy = false

configs.batchImportConfig()
configs.exportConfig()
configs.fileConfig()
configs.filenameFormatConfig()
configs.filterConfig()
configs.findReplaceConfig()
configs.guiConfig()
configs.importConfig()
configs.mainWindowConfig()
configs.networkConfig()
configs.numberTracksConfig()
configs.playlistConfig()
configs.renDirConfig()
configs.tagConfig()
configs.tagFormatConfig()
configs.userActionsConfig()