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cb50ada4f8
This allows -print_format to accept string of the form WRITER=OPTIONS, as required by the pending compact writer patch.
180 lines
4.1 KiB
Plaintext
180 lines
4.1 KiB
Plaintext
\input texinfo @c -*- texinfo -*-
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@settitle ffprobe Documentation
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@titlepage
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@center @titlefont{ffprobe Documentation}
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@end titlepage
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@top
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@contents
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@chapter Synopsis
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The generic syntax is:
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@example
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@c man begin SYNOPSIS
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ffprobe [options] [@file{input_file}]
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@c man end
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@end example
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@chapter Description
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@c man begin DESCRIPTION
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ffprobe gathers information from multimedia streams and prints it in
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human- and machine-readable fashion.
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For example it can be used to check the format of the container used
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by a multimedia stream and the format and type of each media stream
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contained in it.
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If a filename is specified in input, ffprobe will try to open and
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probe the file content. If the file cannot be opened or recognized as
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a multimedia file, a positive exit code is returned.
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ffprobe may be employed both as a standalone application or in
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combination with a textual filter, which may perform more
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sophisticated processing, e.g. statistical processing or plotting.
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Options are used to list some of the formats supported by ffprobe or
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for specifying which information to display, and for setting how
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ffprobe will show it.
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ffprobe output is designed to be easily parsable by a textual filter,
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and consists of one or more sections of a form defined by the selected
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writer, which is specified by the @option{print_format} option.
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Metadata tags stored in the container or in the streams are recognized
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and printed in the corresponding "FORMAT" or "STREAM" section.
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@c man end
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@chapter Options
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@c man begin OPTIONS
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@include avtools-common-opts.texi
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@section Main options
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@table @option
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@item -f @var{format}
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Force format to use.
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@item -unit
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Show the unit of the displayed values.
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@item -prefix
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Use SI prefixes for the displayed values.
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Unless the "-byte_binary_prefix" option is used all the prefixes
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are decimal.
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@item -byte_binary_prefix
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Force the use of binary prefixes for byte values.
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@item -sexagesimal
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Use sexagesimal format HH:MM:SS.MICROSECONDS for time values.
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@item -pretty
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Prettify the format of the displayed values, it corresponds to the
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options "-unit -prefix -byte_binary_prefix -sexagesimal".
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@item -print_format @var{writer_name}[=@var{writer_options}]
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Set the output printing format.
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@var{writer_name} specifies the name of the writer, and
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@var{writer_options} specifies the options to be passed to the writer.
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For example for printing the output in JSON format, specify:
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@example
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-print_format json
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@end example
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For more details on the available output printing formats, see the
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Writers section below.
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@item -show_format
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Show information about the container format of the input multimedia
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stream.
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All the container format information is printed within a section with
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name "FORMAT".
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@item -show_packets
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Show information about each packet contained in the input multimedia
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stream.
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The information for each single packet is printed within a dedicated
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section with name "PACKET".
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@item -show_streams
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Show information about each media stream contained in the input
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multimedia stream.
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Each media stream information is printed within a dedicated section
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with name "STREAM".
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@item -i @var{input_file}
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Read @var{input_file}.
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@end table
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@c man end
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@chapter Writers
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@c man begin WRITERS
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A writer defines the output format adopted by @file{ffprobe}, and will be
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used for printing all the parts of the output.
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A writer may accept one or more arguments, which specify the options to
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adopt.
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A description of the currently available writers follows.
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@section default
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Default format.
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Print each section in the form:
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@example
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[SECTION]
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key1=val1
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...
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keyN=valN
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[/SECTION]
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@end example
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Metadata tags are printed as a line in the corresponding FORMAT or
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STREAM section, and are prefixed by the string "TAG:".
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@section json
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JSON based format.
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Each section is printed using JSON notation.
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For more information about JSON, see @url{http://www.json.org/}.
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@c man end WRITERS
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@include decoders.texi
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@include demuxers.texi
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@include protocols.texi
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@include indevs.texi
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@ignore
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@setfilename ffprobe
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@settitle ffprobe media prober
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@c man begin SEEALSO
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ffmpeg(1), ffplay(1), ffserver(1) and the FFmpeg HTML documentation
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@c man end
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@c man begin AUTHORS
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The FFmpeg developers
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@c man end
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@end ignore
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@bye
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