roc-copy - Man Page

copy local audio

Synopsis

roc-copy Options

Description

Read audio stream from a file, transform it, and and write it to a another file.

Options

-h,  --help

Print help and exit

-V,  --version

Print version and exit

-v,  --verbose

Increase verbosity level (may be used multiple times)

-L,  --list-supported

list supported schemes and formats

-i,--input=FILE_URI

Input file URI

-o,--output=FILE_URI

Output file URI

--input-format=FILE_FORMAT

Force input file format

--output-format=FILE_FORMAT

Force output file format

--frame-length=TIME

Duration of the internal frames, TIME units

-r,--rate=INT

Output sample rate, Hz

--resampler-backend=ENUM

Resampler backend  (possible values="default", "builtin", "speex", "speexdec" default=`default')

--resampler-profile=ENUM

Resampler profile  (possible values="low", "medium", "high" default=`medium')

--profiling

Enable self profiling  (default=off)

--color=ENUM

Set colored logging mode for stderr output (possible values="auto", "always", "never" default=`auto')

File URI

--input and --output options require a file URI in one of the following forms:

  • file:///ABS/PATH -- absolute file path
  • file://localhost/ABS/PATH -- absolute file path (alternative form; only "localhost" host is supported)
  • file:/ABS/PATH -- absolute file path (alternative form)
  • file:REL/PATH -- relative file path
  • file://- -- stdout
  • file:- -- stdout (alternative form)

Examples:

  • file:///home/user/test.wav
  • file://localhost/home/user/test.wav
  • file:/home/user/test.wav
  • file:./test.wav
  • file:-

The list of supported file formats can be retrieved using --list-supported option.

If the --output is omitted, the conversion results are discarded.

The --input-format and --output-format options can be used to force the file format. If the option is omitted, the file format is auto-detected. This option is always required for stdin or stdout.

The path component of the provided URI is percent-decoded. For convenience, unencoded characters are allowed as well, except that % should be always encoded as %25.

For example, the file named /foo/bar%/[baz] may be specified using either of the following URIs: file:///foo%2Fbar%25%2F%5Bbaz%5D and file:///foo/bar%25/[baz].

Examples

Convert sample rate to 48k:

$ roc-copy -vv --rate=48000 -i file:input.wav -o file:output.wav

Drop output results (useful for benchmarking):

$ roc-copy -vv --rate=48000 -i file:input.wav

Input from stdin, output to stdout:

$ roc-copy -vv --input-format=wav -i file:- \
    --output-format=wav -o file:- >./output.wav <./input.wav

See Also

roc-recv(1), roc-send(1), the Roc web site at https://roc-streaming.org/

Bugs

Please report any bugs found via GitHub (https://github.com/roc-streaming/roc-toolkit/).

Authors

See authors page on the website for a list of maintainers and contributors.

Info

2024 Roc Toolkit 0.3