XML::FeedPP::MediaRSS(3) MediaRSS support for XML::FeedPP

VERSION

version 0.02

SYNOPSIS


use XML::FeedPP;
my $feed = XML::FeedPP->new('http://a.media.rss/source');
my $media = XML::FeedPP::MediaRSS->new($feed);
for my $i ( $feed->get_item ) {
for my $content ( $media->for_item($i) ) {
die "18 or over" if $content->{adult};
}
}

DESCRIPTION

XML::FeedPP does not support Yahoo's MediaRSS extension, and it shouldn't. It's only supported in some formats, and XML::FeedPP is a lowest-common-denominator kind of module. That said, sometimes you need to consume feeds with MediaRSS in them.

METHODS

new ( feed )

You have to pass in an XML::FeedPP object. "XML::FeedPP::MediaRSS" isn't a subclass of XML::FeedPP - it has one, and inspects its dirty innards (which is somewhat safe since they're produced by XML::TreePP) to find media content.

for_item ( item )

Pass in a feed item (the things returned by "$feed->get_item") and get back a list of ``XML::FeedPP::MediaRSS::Content'' objects.

KEYS

adult

1 or ''

rating

A hash of all the ratings found, schema => rating.

title

A hash of all titles found, type => value.

keywords

An arrayref of all the keywords found. The comma-delimiting is undone and duplicates are removed.

thumbnails

All thumnails found, from most specific (deepest) to least specific. This means that if the channel has a thumbnail and the item has a thumbnail, you'll get the item first, then the channel. If there are multiple thumbnails at the same level, you'll get them in document order. Time coding is not considered. They look like this: 

    {   url => '...', width => 400, height => 300, time => 'timecode'   }

category

Hash of scheme => plain contents of tag

hash

Deepest only. 

    {
        algorithm => 'md5',
        checksum  => 'dfdec888b72151965a34b4b59031290a',
    }

player

Deepest only. 

    {
        url => '...',
        height => 300,
        width => 400
    }

credit

Hash of scheme to role-hash, like this: 

    {
        'urn:ebu' => {
            actor => [
                'Julia Roberts',
                'Tom Hanks',
            ],
            director => [
                'Stevan Spielberg',
            ]
        }
    }

copyright

Deepest only.

{ url => '...', text => '2005 Foobar Media' }

text

A list of text objects in document order, like this: 

    [
        {
            type  => 'plain',
            lang  => 'en',
            start => 'timecode',
            end   => 'timecode',
            text  => 'The actual value',
        },
    ]

restriction

    {
        allow => (1|0),
        type  => (country|uri|sharing)
        list  => [ ... ] | 'all' | 'none'
    }

If allow is false, that means deny.

community

Deepest only. 

    {
        starRating => {
            average => 3.5,
            count   => 20,
            min     => 1,
            max     => 10,
        },
        statistics => {
            views     => 5,
            favorites => 5,
        },
        tags       => {
            news => 5,
            abc  => 3,
            reuters => undef,
        },
    }

comments

Simple list of strings.

embed

Hash of key-value pairs. Deepest only.

responses

Simple list of strings

backlinks

Simple list of strings

status

Deepest only. 

    { state => 'status', reason => 'reason' }

price

List of pricing structures, which are hashes with the keys "currency" (optional), "info" (optional), "type" (optional), and "price" (optional). If none of these is present for a given price tag, we're going to pretend it doesn't exist.

license

Hash of type, href, and name. Deepest only.

subTitle

Only one per language as per the spec. 

    {
        'en_us' => {
            href => 'http://www.example.org/subtitle.smil',
            type => 'application/smil',
        }
    }

peerLink

Deepest only, hash of type and href.

location

NOT SUPPORTED, mostly cause I don't need it and I don't feel like reading the geoRSS spec right now. Patches welcome!

rights

value of the status attribute for the deepest rights element.

scenes

Deepest only, list of hashes with keys title, description, start_time, and end_time.

ALPHA

This software hasn't yet been tested beyond the examples provided in the mRSS spec. Failing tests (even better, with patches that fix the failures) are very welcome! Fork and send a pull request on ``GITHUB''.

XML::FeedPP::MediaRSS::Content

These are blessed hashes, but you're allowed to look inside them. In fact, you're really supposed to. It's okay, don't be nervous.

The mapping from the MediaRSS spec (<http://video.search.yahoo.com/mrss>) to this hash is really straightforward. See the ``KEYS'' section for more detail. The shallowness-rules talked about in the spec are applied, e.g. specifiers at higher levels are applied to lower level objects unless they have a more specific rule.

LIMITATIONS

Groups

You don't have to (get to?) deal with media groups. All the content for an item gets flattened into one list. Future versions of this module may add support for media groups under a different method name ("groups_for_item") if anyone ever sends me a patch or I can ever find an actual use for it.

Order

The MediaRSS spec says some things about order being dependent on document order. We go by the order we get things from XML::FeedPP's hashes, which will only be the same as document order if you "use_ixhash => 1" in the feed. And even then, content in media:groups will come before content outside them.

Read-Write

This module only supports reading MediaRSS information from a feed, not adding it. I might add this someday, but of course patches are welcome in the meantime.

GITHUB

This project is hosted on github at http://github.com/frodwith/XML-FeedPP-MediaRSS <http://github.com/frodwith/XML-FeedPP-MediaRSS>.

AUTHOR

Paul Driver <[email protected]>

COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Paul Driver <[email protected]>.

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

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