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Man Pages


Manual Reference Pages  -  FFMPEG::COMMAND (3)

.ds Aq ’

NAME

FFmpeg::Command - A wrapper class for ffmpeg/avconv command line utility.

CONTENTS

DESCRIPTION

A simple interface for using ffmpeg command line utility with fallback to use the newer avconv utility if ffmpeg is not installed.

SYNOPSIS



    use FFmpeg::Command;

    my $ffmpeg = FFmpeg::Command->new(/usr/local/bin/ffmpeg);

    # Set timeout
    $ffmpeg->timeout(300);

    # ga: global  option a, gb: global  option b
    # ia: infile  option a, ib: infile  option b
    # oa: outfile option a, ob: outfile option b

    # ffmpeg -y -ga -gb -ia -ib -i filename1 -oa -ob output_file
    $ffmpeg->global_options(qw/-ga -gb/);
    $ffmpeg->infile_options(qw/-ia -ib/);
    $ffmpeg->outfile_options(qw/-oa -ob/);
    $ffmpeg->input_file(filename1);
    $ffmpeg->output_file(output_file);

    my $result = $ffmpeg->exec();
    croak $ffmpeg->errstr unless $result;

    # ffmpeg -y -i filename1 -ga -gb -ia -ib -oa -ob output_file
    $ffmpeg->options(qw/-ga -gb -ia -ib -oa -ob/);
    $ffmpeg->input_file(filename1);
    $ffmpeg->output_file(output_file);

    $ffmpeg->exec();

    # ffmpeg -y -ga -gb -ia -ib -i filename1 -ia -ib -i filename2 -oa -ob output_file
    # Infile options are adopted for every input files
    $ffmpeg->global_options(qw/-ga -gb/);
    $ffmpeg->infile_options(qw/-ia -ib/);
    $ffmpeg->outfile_options(qw/-oa -ob/);
    $ffmpeg->input_file([filename1,filename2]);
    $ffmpeg->output_file(output_file);

    $ffmpeg->exec()

    # ffmpeg -y -ga -gb -ia1 -ib1 -i filename1 -ia2 -ib2 -i filename2 -oa -ob output_file
    # Each input file has different infile options
    $ffmpeg->options(qw/-ga -gb -ia1 -ib1 -i filename1 -ia2 -ib2 -i filename2 -oa -ob output_file/);

    $ffmpeg->exec()

    # This sample code takes a screen shot.
    $ffmpeg->input_file($input_file);
    $ffmpeg->output_file($output_file);

    $ffmpeg->options(
        -f       => image2,
        -pix_fmt => jpg,
        -vframes => 1,
        -ss      => 30,
        -s       => 320x240,
        -an,
    );

    $ffmpeg->exec()

    # Below are old style example(may be obsoleted at future release)
    $ffmpeg->input_options({
        file => $input_file,
    });

    # Convert a video file into iPod playable format.
    $ffmpeg->output_options({
        file   => $output_file,
        device => ipod,
    });

    # This is same as above.
    $ffmpeg->output_options({
        file                => $output_file,
        format              => mp4,
        video_codec         => mpeg4,
        bitrate             => 600,
        frame_size          => 320x240,
        audio_codec         => libaac,
        audio_sampling_rate => 48000,
        audio_bit_rate      => 64,
    });

    # Convert a video file into PSP playable format.
    $ffmpeg->output_options({
        file  => $output_file,
        device => psp,
    });

    # This is same as above.
    $ffmpeg->output_options({
        file                => $output_file,
        format              => psp,
        video_codec         => mpeg4,
        bitrate             => 600,
        frame_size          => 320x240,
        audio_codec         => libaac,
        audio_sampling_rate => 48000,
        audio_bit_rate      => 64,
    });



METHODS

    new(’/usr/bin/ffmpeg’)

Contructs FFmpeg::Command object.It takes a path of ffmpeg command. You can omit this argument and this module searches ffmpeg command within PATH environment variable.

timeout()

Set command timeout.Default is 0.

input_file( CW@files );

Specify names of input file(s).

    output_file(’/path/to/output_file’)

Specify output file name.

global_options( CW@options )

Specify ffmpeg global options.

infile_options( CW@options )

Specify ffmpeg infile options.

outfile_options( CW@options )

Specify ffmpeg outfile options.

options( CW@options )

Specify ffmpeg command options directly including input files and and output file.

execute()

Executes ffmpeg command with specified options.

exec()

An alias of execute()

stdout()

Get ffmpeg command output to stdout.

stderr()

Get ffmpeg command output to stderr.

input_options({ CW%options })

Specify input file name and input options.(Now no options are available.)
file a file name of input file or an anonymous list of multiple input files (useful for merging audio and video files together).

output_options({ CW%options })

Specify output file name and output options.

Avaiable options are:
file a file name of output file.
format Output video format.
video_codec Output video codec.
bitrate Output video bitrate.
frame_size Output video screen size.
audio_codec Output audio code.
audio_sampling_rate Output audio sampling rate.
audio_bit_rate Output audio bit rate.
title Set the title.
author Set the author.
comment Set the comment.

AUTHORS

Gosuke Miyashita, <gosukenator at gmail.com>

Munechika Sumikawa, <sumikawa at sumikawa.jp>

BUGS

Please report any bugs or feature requests to bug-ffmpeg-command at rt.cpan.org, or through the web interface at <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=FFmpeg-Command>. I will be notified, and then you’ll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.



    perldoc FFmpeg::Command



You can also look for information at:
o AnnoCPAN: Annotated CPAN documentation

<http://annocpan.org/dist/FFmpeg-Command>

o CPAN Ratings

<http://cpanratings.perl.org/d/FFmpeg-Command>

o RT: CPAN’s request tracker

<http://rt.cpan.org/NoAuth/Bugs.html?Dist=FFmpeg-Command>

o Search CPAN

<http://search.cpan.org/dist/FFmpeg-Command>

ACKNOWLEDGEMENTS

COPYRIGHT & LICENSE

Copyright 2006 Gosuke Miyashita, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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perl v5.20.3 FFMPEG::COMMAND (3) 2013-06-07

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