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library/perl/trunk/FFmpeg-Command/lib/FFmpeg/Command.pm

3 March 2009

source:library/perl/trunk/FFmpeg-Command/lib/FFmpeg/Command.pm

NAME

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

DESCRIPTION

A simple interface for using ffmpeg command line utility.

SYNOPSIS 

use FFmpeg::Command;

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

    $ffmpeg->input_options({
        file => $input_file,
    });

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

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

    my $result = $ffmpeg->exec();

    croak $ffmpeg->errstr unless $result;

    # 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,
    });

    $ffmpeg->exec();


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

    $ffmpeg->exec();

    # 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,
    });

    $ffmpeg->exec();

    # Execute ffmpeg with any options you like.
    # This sample code takes a screnn shot.
    $ffmpeg->input_file($input_file);
    $ffmpeg->output_file($output_file);

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

    $ffmpeg->exec();

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_options({ %options })

Specify input file name and input options.(Now no options are available.)

file:: a file name of input file.

output_options({ %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.

input_file('/path/to/inpuf_file')

Specify input file name using with options() method.

output_file('/path/to/output_file')

Specify output file name using with options() method.

options( @options )

Specify ffmpeg command options directly.

execute()

Executes ffmpeg comman with specified options.

exec()

An alias of execute()

stdout()

Get ffmpeg command output to stdout.

stderr()

Get ffmpeg command output to stderr.

AUTHOR

Gosuke Miyashita, <gosukenator at gmail.com>

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:

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

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

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

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.