metaflac



METAFLAC(1)                                                        METAFLAC(1)




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 opera-
       tions at a time.


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).

       --no-filename
              Do  not  prefix  each  output  line with the FLAC file name (the
              default if only one FLAC file is specified).

       --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 the field name matches ’name’.

       --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.

       --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.

       --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-con-
              vert before --import-tags-from if necessary.

       --export-tags-to=file
              Export tags to a file.  Use ’-’ for stdin.  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.

       --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 in the VORBIS_COMMENT block.  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 speci-
              fied must have the same resolution, sample rate, and  number  of
              channels.   The  sample  rate  must be one of 8, 11.025, 12, 16,
              22.05, 24, 32, 44.1, or 48 kHz.

       --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  place-
              holder  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  sec-
              onds.

       --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
              following options to change this behavior:

              --block-number=#[,#[...]]
                     An optional comma-separated list of block numbers to dis-
                     play.  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.   You may narrow down the types of APPLI-
                     CATION blocks displayed as follows:

                     APPLICATION:abcd        The  APPLICATION  block(s)  whose
                     textual  repre-  sentation  of  the  4-byte  ID is "abcd"
                     APPLICATION:0xXXXXXXXX  The  APPLICATION  block(s)  whose
                     hexadecimal  big-  endian representation of the 4-byte ID
                     is "0xXXXXXXXX".  For the example "abcd" above  the  hex-
                     adecimal equivalalent is 0x61626364

                     Note:  if  both  --block-number and --[except-]block-type
                     are specified, the result is  the  logical  AND  of  both
                     arguments.

              --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.

       --remove
              Remove one or more metadata blocks from  the  metadata.   Unless
              --dont-use-padding  is  specified,  the  blocks will be replaced
              with padding.  You may not remove the STREAMINFO block.

              --block-number=#[,#[...]]

              --block-type=type[,type[...]]

              --except-block-type=type[,type[...]]
                     See --list above for usage.

                     Note: if both  --block-number  and  --[except-]block-type
                     are  specified,  the  result  is  the logical AND of both
                     arguments.

       --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).



                               02 February 2005                    METAFLAC(1)

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