NAME
   WWW::YouTube::Download - Very simple YouTube video download interface

SYNOPSIS
     use WWW::YouTube::Download;

     my $client = WWW::YouTube::Download->new;
     $client->download($video_id);

     my $video_url = $client->get_video_url($video_id);
     my $title     = $client->get_title($video_id);     # maybe encoded utf8 string.
     my $fmt       = $client->get_fmt($video_id);       # maybe highest quality.
     my $suffix    = $client->get_suffix($video_id);    # maybe highest quality file suffix

DESCRIPTION
   WWW::YouTube::Download is a download video from YouTube.

METHODS
   new()
         $client = WWW::YouTube::Download->new;

       Creates a WWW::YouTube::Download instance.

   download($video_id [, \%args])
         $client->download($video_id);
         $client->download($video_id, {
             fmt      => 37,
             filename => 'sample.mp4', # save file name
         });
         $client->download($video_id, {
             filename => '{title}.{suffix}', # maybe `video_title.mp4`
         });
         $client->download($video_id, {
             cb => \&callback,
         });

       Download the video file. The first parameter is passed to YouTube
       video url.

       Allowed arguments:

       "cb"
           Set a callback subroutine, SEE LWP::UserAgent ':content_cb' for
           details.

       "filename"
           Set the filename, possibly using placeholders to be filled with
           information gathered about the video.

           "filename" supported format placeholders:

             {video_id}
             {title}
             {user}
             {fmt}
             {suffix}
             {resolution}

           Output filename is set to "{video_id}.{suffix}" by default.

       "file_name"
           DEPRECATED alternative for "filename".

       "fmt"
           set the format to download. Defaults to the best video quality
           (inferred by the available resolutions).

   playback_url($video_id, [, \%args])
         $client->playback_url($video_id);
         $client->playback_url($video_id, { fmt => 37 });

       Return playback URL of the video. This is direct link to the movie
       file. Function supports only "fmt" option.

   prepare_download($video_id)
       Gather data about the video. A hash reference is returned, with the
       following keys:

       "fmt"
           the default, suggested format. It is inferred by selecting the
           alternative with the highest resolution.

       "fmt_list"
           the list of available formats, as an array reference.

       "suffix"
           the filename extension associated to the default format (see
           "fmt" above).

       "title"
           the title of the video

       "user"
           the YouTube user owning the video

       "video_id"
           the video identifier

       "video_url"
           the URL of the video associated to the default format (see "fmt"
           above).

       "video_url_map"
           an hash reference containing details about all available
           formats.

       The "video_url_map" has one key/value pair for each available
       format, where the key is the format identifier (can be used as "fmt"
       parameter for "download", for example) and the value is a hash
       reference with the following data:

       "fmt"
           the format specifier, that can be passed to "download"

       "resolution"
           the resolution as *width*x*height*

       "suffix"
           the suffix, providing a hint about the video format (e.g. webm,
           flv, ...)

       "url"
           the URL where the video can be found

   ua([$ua])
         $self->ua->agent();
         $self->ua($LWP_LIKE_OBJECT);

       Sets and gets LWP::UserAgent object.

   get_video_url($video_id)
   get_title($video_id)
   get_user($video_id)
   get_fmt($video_id)
   get_fmt_list($video_id)
   get_suffix($video_id)

AUTHOR
   xaicron <xaicron {@} cpan.org>

CONTRIBUTORS
   yusukebe

SEE ALSO
   WWW::NicoVideo::Download

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