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-len=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')
FileURI--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].
TimeunitsTIMEshouldhaveoneofthefollowingforms:
123ns; 1.23us; 1.23ms; 1.23s; 1.23m; 1.23h;