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metaflac - Online in the Cloud

Run metaflac in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command metaflac that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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.

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).

--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 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.

--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". The format of SPECIFICATION is

[TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE

TYPE is optional; it is a number from one of:

0: Other

1: 32x32 pixels 'file icon' (PNG only)

2: Other file icon

3: Cover (front)

4: Cover (back)

5: Leaflet page

6: Media (e.g. label side of CD)

7: Lead artist/lead performer/soloist

8: Artist/performer

9: Conductor

10: Band/Orchestra

11: Composer

12: Lyricist/text writer

13: Recording Location

14: During recording

15: During performance

16: Movie/video screen capture

17: A bright coloured fish

18: Illustration

19: Band/artist logotype

20: Publisher/Studio logotype

The default is 3 (front cover). There may only be one picture each of type 1
and 2 in a file.

MIME-TYPE is optional; if left blank, it will be detected from the file. For
best compatibility with players, use pictures with MIME type image/jpeg or
image/png. The MIME type can also be --> to mean that FILE is actually a URL to
an image, though this use is discouraged.

DESCRIPTION is optional; the default is an empty string.

The next part specfies the resolution and color information. If the MIME-TYPE
is image/jpeg, image/png, or image/gif, you can usually leave this empty and
they can be detected from the file. Otherwise, you must specify the width in
pixels, height in pixels, and color depth in bits-per-pixel. If the image has
indexed colors you should also specify the number of colors used. When manually
specified, it is not checked against the file for accuracy.

FILE is the path to the picture file to be imported, or the URL if MIME type is
-->

For example, "|image/jpeg|||../cover.jpg" loading="lazy" will embed the JPEG file at
../cover.jpg, defaulting to type 3 (front cover) and an empty description. The
resolution and color info will be retrieved from the file itself.

The specification "4|-->|CD|320x300x24/173|http://blah.blah/backcover.tiff" will
embed the given URL, with type 4 (back cover), description "CD", and a manually
specified resolution of 320x300, 24 bits-per-pixel, and 173 colors. The file at
the URL will not be fetched; the URL itself is stored in the PICTURE metadata
block.

--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.
The sample rate must be one of 8, 11.025, 12, 16, 18.9, 22.05, 24, 28, 32, 37.8,
44.1, 48, 56, 64, 88.2, 96, 112, 128, 144, 176.4, or 192kHz.

--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 following options to change
this behavior:

--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 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
hexadecimal 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.

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