NAME

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

VERSION

version 0.65

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 library to download videos from YouTube. It relies entirely on scraping a video's webpage and does not use YT's /get_video_info URL space.

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 widthxheight

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.

video_id($url)

Parses given URL and returns video ID.

playlist_id($url)

Parses given URL and returns playlist ID.

user_id($url)

Parses given URL and returns YouTube username.

get_video_id($video_id)

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)

playlist($id,$ref)

Fetches a playlist and returns a ref to an array of hashes, where each hash represents a video from the playlist with youtube id, runtime in seconds and title. On playlists with many videos, the method iteratively downloads pages until the playlist is complete.

Optionally accepts a second argument, a hashref of options. Currently, you can pass a "limit" value to stop downloading of subsequent pages on larger playlists after x-amount of fetches (a limit of fetches, not playlist items). For example, pass 1 to only download the first page of videos from a playlist in order to "skim" the "tip" of new videos in a playlist. YouTube currently returns 100 videos at max per page.

This method is used by the youtube-playlists.pl script.

CONTRIBUTORS

yusukebe

BUG REPORTING

Please use github issues: https://github.com/xaicron/p5-www-youtube-download/issues.

SEE ALSO

WWW::YouTube::Info and WWW::YouTube::Info::Simple. WWW::NicoVideo::Download http://rg3.github.io/youtube-dl/

AUTHOR

xaicron <xaicron {@} cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Yuji Shimada.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.