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diff --git a/man/metaflac.md b/man/metaflac.md new file mode 100644 index 0000000..8c049d7 --- /dev/null +++ b/man/metaflac.md @@ -0,0 +1,299 @@ +% metaflac(1) Version 1.4.3 | Free Lossless Audio Codec metadata tool + +# NAME + +metaflac - program to list, add, remove, or edit metadata in one or more +FLAC files. + +# SYNOPSIS + +**metaflac** \[ *options* \] \[ *operations* \] *FLACfile ...* + +# DESCRIPTION + +Use **metaflac** to list, add, remove, or edit metadata in one or more +FLAC files. You may perform one major operation, or many shorthand +operations at a time. + +# GENERAL USAGE + +metaflac is the command-line .flac file metadata editor. You can use it +to list the contents of metadata blocks, edit, delete or insert blocks, +and manage padding. + +metaflac takes a set of "options" (though some are not optional) and a +set of FLAC files to operate on. There are three kinds of "options": + +- Major operations, which specify a mode of operation like listing + blocks, removing blocks, etc. These will have sub-operations describing + exactly what is to be done. + +- Shorthand operations, which are convenient synonyms for major + operations. For example, there is a shorthand operation + --show-sample-rate that shows just the sample rate field from the + STREAMINFO metadata block. + +- Global options, which affect all the operations. + +All of these are described in the tables below. At least one shorthand +or major operation must be supplied. You can use multiple shorthand +operations to do more than one thing to a file or set of files. Most of +the common things to do to metadata have shorthand operations. As an +example, here is how to show the MD5 signatures for a set of three FLAC +files: + +`metaflac --show-md5sum file1.flac file2.flac file3.flac` + +Another example; this removes all DESCRIPTION and COMMENT tags in a set +of FLAC files, and uses the --preserve-modtime global option to keep the +FLAC file modification times the same (usually when files are edited the +modification time is set to the current time): + +`metaflac --preserve-modtime --remove-tag=DESCRIPTION --remove-tag=COMMENT file1.flac file2.flac file3.flac` + +# OPTIONS + +**\--preserve-modtime** +: Preserve the original modification time in spite of edits. + +**\--with-filename** +: Prefix each output line with the FLAC file name (the default if more + than one FLAC file is specified). This option has no effect for + options exporting to a file, like --export-tags-to. + +**\--no-filename** +: Do not prefix each output line with the FLAC file name (the default + if only one FLAC file is specified). + +**\--no-utf8-convert** +: Do not convert tags from UTF-8 to local charset, or vice versa. This + is useful for scripts, and setting tags in situations where the + locale is wrong. + +**\--dont-use-padding** +: By default metaflac tries to use padding where possible to avoid + rewriting the entire file if the metadata size changes. Use this + option to tell metaflac to not take advantage of padding this way. + +# SHORTHAND OPERATIONS + +**\--show-md5sum** +: Show the MD5 signature from the STREAMINFO block. + +**\--show-min-blocksize** +: Show the minimum block size from the STREAMINFO block. + +**\--show-max-blocksize** +: Show the maximum block size from the STREAMINFO block. + +**\--show-min-framesize** +: Show the minimum frame size from the STREAMINFO block. + +**\--show-max-framesize** +: Show the maximum frame size from the STREAMINFO block. + +**\--show-sample-rate** +: Show the sample rate from the STREAMINFO block. + +**\--show-channels** +: Show the number of channels from the STREAMINFO block. + +**\--show-bps** +: Show the \# of bits per sample from the STREAMINFO block. + +**\--show-total-samples** +: Show the total \# of samples from the STREAMINFO block. + +**\--show-vendor-tag** +: Show the vendor string from the VORBIS_COMMENT block. + +**\--show-tag=name** +: Show all tags where the field name matches 'name'. + +**\--show-all-tags** +: Show all tags. This is an alias for --export-tags-to=-. + +**\--remove-tag=name** +: Remove all tags whose field name is 'name'. + +**\--remove-first-tag=name** +: Remove first tag whose field name is 'name'. + +**\--remove-all-tags** +: Remove all tags, leaving only the vendor string. + +**\--remove-all-tags-except=NAME1\[=NAME2\[=...\]\]** +: Remove all tags, except the vendor string and the tag names + specified. Tag names must be separated by an = character. + +**\--set-tag=field** +: Add a tag. The field must comply with the Vorbis comment spec, of the + form "NAME=VALUE". If there is currently no tag block, one will be + created. + +**\--set-tag-from-file=field** +: Like \--set-tag, except the VALUE is a filename whose contents will + be read verbatim to set the tag value. Unless \--no-utf8-convert is + specified, the contents will be converted to UTF-8 from the local + charset. This can be used to store a cuesheet in a tag (e.g. + \--set-tag-from-file="CUESHEET=image.cue"). Do not try to store + binary data in tag fields! Use APPLICATION blocks for that. + +**\--import-tags-from=file** +: Import tags from a file. Use '-' for stdin. Each line should be of + the form NAME=VALUE. Multi-line comments are currently not supported. + Specify \--remove-all-tags and/or \--no-utf8-convert before + \--import-tags-from if necessary. If FILE is '-' (stdin), only one + FLAC file may be specified. + +**\--export-tags-to=file** +: Export tags to a file. Use '-' for stdout. Each line will be of the + form NAME=VALUE. Specify \--no-utf8-convert if necessary. + +**\--import-cuesheet-from=file** +: Import a cuesheet from a file. Use '-' for stdin. Only one FLAC file + may be specified. A seekpoint will be added for each index point in + the cuesheet to the SEEKTABLE unless \--no-cued-seekpoints is + specified. + +**\--export-cuesheet-to=file** +: Export CUESHEET block to a cuesheet file, suitable for use by CD + authoring software. Use '-' for stdout. Only one FLAC file may be + specified on the command line. + +**\--import-picture-from={***FILENAME***\|***SPECIFICATION***}** +: Import a picture and store it in a PICTURE metadata block. More than + one \--import-picture-from command can be specified. Either a filename + for the picture file or a more complete specification form can be + used. The SPECIFICATION is a string whose parts are separated by \| + (pipe) characters. Some parts may be left empty to invoke default + values. FILENAME is just shorthand for "\|\|\|\|FILENAME". For + details on the specification, see the section **Picture + specification** in the **flac(1)** man page. + +**\--export-picture-to=file** +: Export PICTURE block to a file. Use '-' for stdout. Only one FLAC + file may be specified on the command line. The first PICTURE block + will be exported unless \--export-picture-to is preceded by a + \--block-number=# option to specify the exact metadata block to + extract. Note that the block number is the one shown by \--list. + +**\--add-replay-gain** +: Calculates the title and album gains/peaks of the given FLAC files as + if all the files were part of one album, then stores them as FLAC + tags. The tags are the same as those used by vorbisgain. Existing + ReplayGain tags will be replaced. If only one FLAC file is given, + the album and title gains will be the same. Since this operation + requires two passes, it is always executed last, after all other + operations have been completed and written to disk. All FLAC files + specified must have the same resolution, sample rate, and number of + channels. Only mono and stereo files are allowed, and the sample + rate must be 8, 11.025, 12, 16, 18.9, 22.05, 24, 28, 32, 36, 37.8, + 44.1, 48, 56, 64, 72, 75.6, 88.2, 96, 112, 128, 144, 151.2, 176.4, + 192, 224, 256, 288, 302.4, 352.8, 384, 448, 512, 576, or 604.8 kHz. + +**\--scan-replay-gain** +: Like \--add-replay-gain, but only analyzes the files rather than + writing them to the tags. + +**\--remove-replay-gain** +: Removes the ReplayGain tags. + +**\--add-seekpoint={***\#***\|***X***\|***\#x***\|***\#s***}** +: Add seek points to a SEEKTABLE block. Using \#, a seek point at that + sample number is added. Using X, a placeholder point is added at the + end of a the table. Using \#x, \# evenly spaced seek points will be + added, the first being at sample 0. Using \#s, a seekpoint will be + added every \# seconds (# does not have to be a whole number; it can + be, for example, 9.5, meaning a seekpoint every 9.5 seconds). If no + SEEKTABLE block exists, one will be created. If one already exists, + points will be added to the existing table, and any duplicates will + be turned into placeholder points. You may use many \--add-seekpoint + options; the resulting SEEKTABLE will be the unique-ified union of + all such values. Example: \--add-seekpoint=100x \--add-seekpoint=3.5s + will add 100 evenly spaced seekpoints and a seekpoint every 3.5 + seconds. + +**\--add-padding=length** +: Add a padding block of the given length (in bytes). The overall + length of the new block will be 4 + length; the extra 4 bytes is for + the metadata block header. + +# MAJOR OPERATIONS + +**\--list** +: List the contents of one or more metadata blocks to stdout. By + default, all metadata blocks are listed in text format. Use the + options **\--block-number**, **\--block-type** or + **\--except-block-type** to change this behavior. + +**\--remove** +: Remove one or more metadata blocks from the metadata. Use the options + **\--block-number**, **\--block-type** or **\--except-block-type** + to specify which blocks should be removed. Note that if both + \--block-number and \--[except-]block-type are specified, the result + is the logical AND of both arguments. Unless \--dont-use-padding + is specified, the blocks will be replaced with padding. You may not + remove the STREAMINFO block. + +**\--block-number=#\[,#\[...\]\]** +: An optional comma-separated list of block numbers to display. The + first block, the STREAMINFO block, is block 0. + +**\--block-type=type\[,type\[...\]\]** + +**\--except-block-type=type\[,type\[...\]\]** +: An optional comma-separated list of block types to be included or + ignored with this option. Use only one of \--block-type or + \--except-block-type. The valid block types are: STREAMINFO, PADDING, + APPLICATION, SEEKTABLE, VORBIS_COMMENT, PICTURE. You may narrow down + the types of APPLICATION blocks selected by appending APPLICATION + with a colon and the ID of the APPLICATION block in either ASCII + or hexadecimal representation. E.g. APPLICATION:abcd for the + APPLICATION block(s) whose textual representation of the 4-byte ID + is "abcd" or APPLICATION:0xXXXXXXXX for the APPLICATION block(s) + whose hexadecimal big- endian representation of the 4-byte ID + is "0xXXXXXXXX". For the example "abcd" above the hexadecimal + equivalalent is 0x61626364 + +**\--application-data-format=hexdump\|text** +: If the application block you are displaying contains binary data but + your \--data-format=text, you can display a hex dump of the + application data contents instead using + \--application-data-format=hexdump. + +**\--data-format=binary\|binary-headerless\|text** +: For use with --list. By default a human-readable text + representation of the data is isplayed. You may specify + --data-format=binary to dump the raw binary form of each metadata + block. Specify --data-format=binary-headerless to omit output of + metadata block headers, including the id of APPLICATION metadata + blocks. + +**\--append** +: Insert a metadata block from a file. This must be a binary block as + exported with --list --data-format=binary. The insertion point is + defined with --block-number=#. The new block will be added after the + given block number. This prevents the illegal insertion of a block + before the first STREAMINFO block. You may not --append another + STREAMINFO block. It is possible to copy a metadata block from one + file to another with this option. For example use + `metaflac --list --data-format=binary --block-number=6 file.flac > block` + to export the block, and then import it with + `metaflac --append anotherfile.flac < block` + +**\--remove-all** +: Remove all metadata blocks (except the STREAMINFO block) from the + metadata. Unless \--dont-use-padding is specified, the blocks will be + replaced with padding. + +**\--merge-padding** +: Merge adjacent PADDING blocks into single blocks. + +**\--sort-padding** +: Move all PADDING blocks to the end of the metadata and merge them + into a single block. + +# SEE ALSO + +**flac(1)** |