Incorporate MediaRSS Plugin into core

[technosailor]

Per conversation on the hackers list, this ticket is a working area for incorporation of the MediaRSS plugin (​http://wordpress.org/extend/plugins/mrss) into core for WP 2.8.

[ryan]

Is anyone in particular working on this?

[hailin]

I am interested in this, unless Andy wants to take over (since he wrote the mrss plugin), I will work on this.

[hailin]

mrss feed

[hailin]

The implementation uses media_rss filter to add media rss feeds to rss2 feed.
It improves the current mrss plugin and uses filter instead of adding action to rss2_item.

In case the installation already has the current media rss plugin installed,
it needs to comment out add_action('rss2_ns', 'mrss_ns'); in mrss_init() in the plugin because that tries to add xmlns:media="http://search.yahoo.com/mrss/" to the name space, and will confuse feed reader if it's added twice.

[ryan]

That preg_match_all on post_content will likely bust backtrack limits.

[technosailor]

We could refactor this patch for 3.1 to use the_post_image() for mrss instead of preg_match_all. Thoughts?

[technosailor]

Use post_thumbnail features

[technosailor]

Refreshed patch to use post thumbnail features. However, not tested. Would prefer to have blessing before going too much deeper.

[SergeyBiryukov]

Related: #19391

[prionkor]

I was wondering if we could focus on this..

[stevenkword]

I'd like to bring this one back up for discussion. Do we think this falls in the 80%? I am voting towards core adoption, but I'd like to get a group read on it before working towards further integration.

[swissspidy]

#36272 was marked as a duplicate.

[swissspidy]

Is MediaRSS still supported by major feed readers?

Would some people be surprised when their feed readers suddenly display their content differently?

[lukecavanagh]

@swissspidy

Seems MediaRSS is supported in Flipboard. ​https://about.flipboard.com/rss-spec/

[stevenkword]

Refreshed

[stevenkword]

Replying to swissspidy:

Is MediaRSS still supported by major feed readers?

Would some people be surprised when their feed readers suddenly display their content differently?

It is in the RSS2.0 spec, so I think we should support it. Aggregators shouldn't have any problems with it since we are only adding new tags. I'm decently sure MediaRSS was/is being used on a number of VIP sites, many of which are big media companies.

My $0.02 for any readers that don't parse it -- is it because 27% of the web doesn't provide the tag? Chicken/egg. It's in the spec, so I think we should emit them (or at least only the featured thumbnail which didn't exist until after MediaRss was written).

[stevenkword]

Looking at the patch I refreshed in comparison the original MediaRSS plugin. I think we should consider providing only the featured image. ​http://www.rssboard.org/media-rss#media-thumbnails

[swissspidy]

See also this plugin I help maintain: ​https://wordpress.org/plugins/wp-feed-post-thumbnail/. Install stats aren't massive, but some people seem to use it. Perhaps it's helpful for creating a refreshed patch.

[ocean90]

#44049 was marked as a duplicate.

[rijo]

Newsstand was integrated now on Google News and Newsstand Producer is using RSS Feeds. A new reason to have feature images on the feeds :)

[swissspidy]

#46247 was marked as a duplicate.

[swissspidy]

Looks like Google Newsstand indeed leverages and recommends MediaRSS (see ​https://support.google.com/news/producer/answer/6170026?hl=en), so that's definitely a prominent use case.

[desrosj]

Looks like this one still needs a refresh and unit tests. Is anyone able to work on that?

[obenland]

I added [8994.diff] as a first pass at a simplified solution based on @swissspidy's ​wp-feed-post-thumbnail suggestion. Maybe we could get this kicked off again?

/cc @stevenkword