ROC-COPY(1) Roc Toolkit ROC-COPY(1)

roc-copy - copy local audio

roc-copy OPTIONS

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

Print help and exit
Print version and exit
Increase verbosity level (may be used multiple times)
list supported schemes and formats
Input file URI
Output file URI
Force input file format
Force output file format
Duration of the internal frames, TIME units
Output sample rate, Hz
Resampler backend (possible values="default", "builtin", "speex", "speexdec" default=`default')
Resampler profile (possible values="low", "medium", "high" default=`medium')
Enable self profiling (default=off)
Set colored logging mode for stderr output (possible values="auto", "always", "never" default=`auto')

--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].

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


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

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

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

2023, Roc Streaming authors

2023 Roc Toolkit 0.3