Miscellaneous Functions

See also: Expression Language and Function Index

The functions in this section are varied and have specialized applicability. Some are primarily used internally by MC to generate values available in various Library fields.

AlbumArtist(…)

Returns a file's calculated album artist.

Description	albumartist() The AlbumArtist() function calculates the album artist value used in various views and fields. It is used to populate the Library field album artist (auto) with its value. Either the field or AlbumArtist() can be used.
Examples	albumartist() Returns the value present in the album artist (auto) field. Additional Examples Describes the algorithm used by AlbumArtist() to calculate the "album artist (auto)" field's value.

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AlbumKey(…)

Returns a unique album key for a file.

Description	albumkey() The AlbumKey() function returns "[album artist (auto)] - [album]". It is a convenience function, used to return the generally unique album / artist combination string used to distinguish between two like-named albums such as "Greatest Hits".
Examples	albumkey() For an album named Greatest Hits and an album artist (auto) of The Eagles, returns The Eagles - Greatest Hits.

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AlbumType(…)

Returns the album type for a file.

Description	albumtype() The AlbumType() function returns a description regarding an album's completeness and its quantity of artists. It is used to populate the Library field album type with its value. Either the field or AlbumType() can be used.
Examples	albumtype() Returns, for example, Single artist (complete), or Multiple artists (incomplete).

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AudioAnalysisState(…)

Returns the state of audio analysis for a file.

Description

audioanalysisstate() The AudioAnalysisState() function returns a file's state of audio analysis. It can be used to determine if audio analysis (Library Tools > Analyze Audio...) should be performed on a media file. The AudioAnalysisState() function will return a string indicating the state of analysis. Possible values are currently: Needed Audio analysis is needed Done Audio analysis is complete N/A The file type does not support audio analysis Excluded (No Audio) The file type supports analysis, but contains no audio Failed on <date> Audio analysis failed on the <date> specified

Examples

audioanalysisstate() Returns, for example, Needed for files that require audio analysis, or N/A if the file type does not support audio analysis. Additional Examples Describes the improved audio analysis and R128 volume leveling feature.

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Char(…)

Returns a character from the numeric code of that character

Description	Char(Numeric Number Code) Char() has unicode support, however, only decimal values are supported. If you require a Hex to Decimal convertor, try unicode-search.net, or search for an alternative online.
Examples	Char(189) Returns ½ Char(9679) Returns ●

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CustomData(…)

Returns internal data to the expression language.

Description

customdata(mode) The CustomData() function supports returning Media Center internal data to the expression language. Currently the only supported mode provides a file's row number in a file list, which is useful in the Rename, Move & Copy tool to assist in numbering files. It can also be used in expressions in a playlist to obtain the file's sequence number. Available mode values: # Returns a file's row number in a file list

Examples

Spring_Break_Bash_padnumber(customdata(#), 4) In the Rename, Move & Copy tool, each consecutive file would be named Spring_Break_Bash_ followed by a four digit, zero-padded number starting at 0001.

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FilePlaylists()

Returns a list of playlists a file belongs to.

Description

FilePlaylists() This function returns the list of playlists a file is in separated by semi-colons.

Examples

FilePlaylists() Using this will return a list of all the playlists a file is in, separated by semi-colons. In and of itself, you might think that this is not 'all that', however, remember that we can combine this with other functions, thus giving us the ability to create expressions with playlist rules. A simple example would be: [=IsEqual(fileplaylists(),genre,8)]=1 which when used in the search bar, will return all files that appear on any playlist containing 'Genre' in its name

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Literal(…)

Returns a string as given without any formatting or processing

Description

Literal(String) Literal() returns a given string as-is without any formatting or processing

Examples

If(IsEqual([Artist], Queen, 1), Literal(If all music was Queen, I would be 10/10ths happy!), Literal(This is not Queen, which makes me sad. :-/)) This does not work, with the sad face breaking the expression completely and generating an error. It should work, suggesting that the Literal() function is currently broken. This reference will be updated once clarification has been received. In the meantime, as detailed under Expression Language Syntax, using /* ... /* does work as Literal() is expected to. See next example... /*Left(Theater,3) returns/* Left(Theater,3) Returns Left(Theater,3) returns The. Here, the first expression function is not evaluated and instead, presented as given, whilst the second function, which is not escaped, is evaluated. Escaping text in this way could be useful if working with a large block of text that might contain parenthesis, forward slashes or other characters that would otherwise require to be escaped individually.

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Repeat(…)

Repeats a given string a specified number of times

Description	Repeat(Value, Count) Repeats "Value", "Count" number of times.
Examples	Repeat(*,10) Returns ********** Repeat(Ha,5) Returns HaHaHaHaHa

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Row(…)

Returns the row number of a list entry

Description	Row() Row() returns the row number for each item in a list.
Examples	Row() When used as an expression column in a file list, each row is numbered starting at 1, incrementing by 1.

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Size(…)

Returns a file's size in a format specific to the media type.

Description	size() The Size() function returns media size information specific to the particular media type. It is used to populate the Library fields duration and dimensions with their values. Either the field or Size() can be used. Type of information reported by size for the file's media type: Audio Duration Video Duration Image Dimensions Data No information returned.
Examples	size() Returns values such as 400x225 for images, or 3:09 for audio files.

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Translate(…)

Converts an English string found in the program to the current language selected in the language menu

Description	Translate(String) When using Media Center with any language other than English, the Translate() function can be used to translate an English string in the program to the current language.
Examples	Translate(Keywords) If using the French language setting, this will return Mots-clés

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TreeNode(…)

Returns the selected tree path.

Description	TreeNode(Mode) Argument mode is optional (defaults to 0). Available mode values: 0 Returns the full tree path 1 Returns the currently selected tree node 2 Returns the parent of the currently selected tree node
Examples	TreeNode() Will return the full tree path of the currently selected tree item (Uses mode zero by default) What this function does is self-explanatory. This conversation on the Interact forums demonstrates a practical use-case scenario.

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TVInfo(…)

Miscellaneous television and other pre-formatted information.

Description

tvinfo(type) The TVInfo() function is multi-purpose, and returns a specific type of information about television recordings, programs, and pre-formatted informational strings for use in captions, thumbnails, grouping, etc. Available type values: IsProgram Returns 1 if the file is a program, 0 otherwise IsGuideProgram Returns 1 if the file is a guide program, 0 otherwise IsRecordedProgram Returns 1 if the file is a recorded program, 0 otherwise IsTVChannel Returns 1 if the selection is a TV Channel program Channel Returns the channel name associated with a given program ChannelKeywords Returns channel keywords ChannelProgramNow Returns the name of a playing TV program on a given channel, empty otherwise Date Returns a program's date DateNoTime Same as Date, but without the time. NameDisplay Returns [name]: [series] or just [name] NameDisplayWithDate NameDisplay + ([year]) Record Returns 1 if the program is scheduled to be recorded, 0 otherwise RecordMark Returns a red dot if the program is schedule to be recorded. RecordStatus Returns a string describing the record status, blank if not to be recorded. SeriesDisplay Returns [series] or [name] SeasonDisplay Returns [season] SeasonEpisode Returns [season].[episode] TimeDisplay Returns program start time (system time format), or "Showing" if program on now TimeDisplayNoOnNow TimeDisplay without on now handling SizeDisplay Returns [duration] ([file size]) or [dimensions] ([file size]) WatchedDisplay Returns Watched() information, such as No, Yes, 80%, etc. IsOnNonTopGroupedChannel Returns 1 if an EPG program is on a channel that is grouped as a non-top member, 0 otherwise. ProgramChannelNumber Returns channel number of the television channel the program is on.

Examples

tvinfo(namedisplay) Returns formatted name and series output. If the file has no [series] value, only [name] is output.

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