Tag: MythTV

Internet Video May Be Coming to MythTV

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Earlier today, on the MythTV Users list, contributor Robert McNamara announced that he and Doug Vaughan(who wrote JAMU and the TVDB grabber) are working on a new plugin for MythT called MythNetVision.

MythTV has had Internet video plugins before. MythStream was one of the earliest. We never could quite get it to work consistently, and it hasn’t been rewritten for MythUI, and those won’t work under MythTV 0.22. None of these have ever been included as part of the official MythTV package, which this has the potential to be.

From their description, it would have the following features:

  • Easy to Extend with Scripts so New Sites can be added. Adding a site would be as simple as parsing an API or site and formatting each item as an RSS article in the output of the script. Parsing happens in the background as long as the frontend is open to keep information current.
  • Support both media which is web-only (by spawning a browser directly to the playback link) and downloadable (by threading off a download and playing in the internal player as soon as enough data is buffered). Also supports external players.
  • Like other MythTV plugins, completely themeable.
  • Compliant with the Terms of Service of the websites it uses and shipped with a number of popular sites already supported. Scripts would only be distributed that were totally compliant, but other scripts could be added separately, outside of the distribution.
  • Two parts: An internet video search and an internet video browser.  Plans to include a “tree view” for a site by dumping the video
    RSS feeds for the site into a grabber config file (adding Revision3 as a fully browseable site would be as simple as dropping the RSS feeds
    in the grabber config).
  • All existing grabbers return full screen, autoplay results when they are available and the API allows. When not possible, the best possible result is played.
  • Downloadable media will be integrated into recordings.
Watch Recordings Menu under Graphite theme
Watch Recordings Menu under Graphite theme

There is a screencast video that can be viewed here. They hope to release by MythTV 0.23, but possibly sooner.

McNamara used the following sites as Examples of sites that should be very easily (and legally) implemented: Comedy Central, The Escapist Magazine, Revision3, Recent Apple Movie Trailers, BBC iPlayer. They’ve already included Youtube, Vimeo, Blip.tv, MTV Video, and TMDB Trailers.

All of them are very interesting. The Escapist just recently unveiled its app in Boxee at the Boxee Beta unveil, for example.

Speaking of Boxee…it has shifted its focus from media stored on a local drive to online content. MythTV has to do the same. It is a DVR software, and should remain so. But with more and more online content becoming available, it needs to address it, and offer ways for that content to become a part of the interface.

MythNetVideo’s design seems to accommodate for that. It launches external programs, or imports video, whichever it can. MythTV doens’t need to be all-encompassing, it can hand off control to other programs. But having that option allows it to be easily extensible, and that is what it needs.

So You’re Thinking of Trying MythTV

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inside my new ubuntu linux PC
Image by spadger via Flickr

We’ve been writing a lot about the new features of the latest release of MythTV, which has now been fully released. Assuming we, or the myriad of other enthusiasts have convinced you to try MythTV as the core of your HTPC(Home Theater PC) system, what should you think about?

Go HD – Don’t Even Bother with SD

In this modern world, even though SD is cheaper, why limit yourself? High Definition TV is the wave of the future, so you should plan for it, even if you aren’t yet ready for it.

You don’t even need a powerful computer anymore to do playback. Just a good graphics card. Under Linux, the best supported cards are the Nvidia line of graphics cards. The 8000 and 9000 series support VDPAU, the latest in offloading video playback from the CPU to the GPU. With one of these graphics processors, you can even use an inexpensive low-power processor like the Atom(common in Netbooks) to run your system.

Now, that is playback. As for recordings, hard drives are fairly straightforward. Get enough space. GBs are cheap now. Beyond that, you need a recording device.

Even with Over-The-Air broadcasts, you can get HD programming using a tuner card. After that, if you have cable or satellite, you can get some channels unencrypted on the cable line, usually local stations as well. Beyond that, you can take the output from the cable or satelite box and pipe it into computer for recording. If you are lucky, you can get channels over a firewire cable from the box(cable only), if not, you can use the HD-PVR 1212 to capture from the analog outputs.

After that, all you need is a remote to control it, and a TV or computer monitor to output it to, and you have the basics of a MythTV setup. Easy, huh?

More to come…

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MiroBridge – A Link Between Miro and MythTV

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Image representing Miro as depicted in CrunchBase
Image via CrunchBase

The MythTV wiki defines MiroBridge as a script which “enables Miro to emulate a MythTV recording device.” However, we feel this is rather inaccurate.

MiroBridge doesn’t appear as a recording device. It does create a channel, defaultly assigned to 999, to assign the Miro recordings to, but it is more an importer of Miro downloaded programs. You configure Miro with your desired online programs, and then set up a cron job to have MiroBridge run.

Miro is an Internet television application that downloads videos from RSS-based channels, manages them, and plays them. It does incorporate a Bittorrent client, but torrent features are disabled in MiroBridge for legal reasons.

MiroBridge in Action
MiroBridge in Action

MiroBridge will let Miro download new episodes, then it will symlink the downloaded episodes into the MythTV recordings directory and import the details of the program as a Recording. It can also move the episodes to MythVideo.

This is an amazing addition to MythTV. Scripts to do this have existed before. We used MythNetTV, which takes RSS feeds for Podcasts and imports them into MythTV. It has never been an official part of MythTV though. MiroBridge is now becoming official, and relies on Miro, which is a popular piece of software in its own right, and well maintained.

If you think about it, with cable becoming more expensive, a MythTV box with a broadcast based system, adding in internet produced programming. If you don’t have cable, at the very least, in the news department, the websites of various cable networks offer limited versions of their programming as RSS feeds you can incorporate in.

Youtube can be distributed as an MP4-based RSS feed as well, using some secondary sites, and thus incorporated in as well. Essentially, there is nothing you can’t do if you can find RSS-distributed video.

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MythTV on Design

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We’ve spent a lot of time, of late, talking about the excitement of the latest version of MythTV. But it is an exciting topic. Video under MythTV is especially important. On the DVR side of things, MythTV has significant attraction. But as a media center application for the playback of video files, the competing software packages change, to software like XBMC and Boxee.

In version 0.22, MythTV unveiled MythUI, which is a complete rewrite of the Myth user interface. New themes were released and several old ones modified. Last night, we did a series of screenshots to show off some of the theme magic available.

Terra(The New Default Theme)

Watch Recordings Screen Under Terra Theme
Watch Recordings Screen Under Terra Theme

Now, Terra shows off the options for a Watch Recordings menu displayed in a manner other than traditional list style, using a horizontal scrolling menu for each program on the DVR side.

But what about for watching videos? As we mentioned in our previous post, JAMU offers an automated method of getting metadata on video files based on their names. There was metadata support in MythTV before, but the inclusion of this new script and other frontend features greatly simplify it out of the ‘box’. A script already exists, but will likely be incorporated as part of version 0.23, that allows for recordings to be exported with metadata information to MythVideo.

A directory of TV show episodes with metadata under Terra Theme
A directory of TV show episodes with metadata under Terra Theme

If you enlarge the image, you will notice that JAMU has added the episode metadata, including description, to these episodes of St. Elsewhere. There is discussion of adding additional options for screenshots for MythVideo(the feature is there for Recordings). If you look at the above image, every episode is using a stock poster.

Graphite

Graphite is being shown off as another new theme for MythTV 0.22 which shows off several of the new features you can enjoy, namely posters and fanart in the Watch Recordings menus. If you note the picture below, you’ll see the ABC show Castle, has a poster, and each episode has an autogenerated screenshot.

Watch Recordings Menu under Graphite theme
Watch Recordings Menu under Graphite theme

The next two images show the background art available in this theme for shows. All of the art shown was imported by the JAMU script.

Daily Show Art Under Graphite Theme
Daily Show Art Under Graphite Theme
The Big Bang Theory Art under Graphite Theme
The Big Bang Theory Art under Graphite Theme

Here is the popup, with the extra art and metadata, for a movie we brought in, and a TV episode. It offers a lot of information, which can be used to sort videos by year, genre, season(if TV show), etc.

Single Video View in MythVideo
Single Video/Movie View in MythVideo
Single Video/TV Episode
Single Video/TV Episode

Here is an alternate display of a directory of movies under the Metallurgy theme, also a theme newly included into MythTV 0.22. As you can see, the automated process didn’t bring in posters for everything. This can be corrected manually, by entering in additional information to better identify the item.

MythVideo Gallery of Movies
MythVideo Gallery of Movies

All in all, MythTV offers an exciting new and themeable interface that brings it on par with XBMC and Boxee, products that are not in the same category as MythTV, but perform some of the same functions. MythTV still has a ways to go in some areas, however, but it has come a long way.

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Video under MythTV

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MythTV itself is a Digital Video Recorder which records off of various television sources. To make it a complete media center, it also needs playback of video files and DVDs.

MythVideo is a plugin that handles all of your video needs. In 0.22, it is dramatically expanded with support for new metadata information, TV Series handling, Fanart, Banners, Screenshots, and a host of new browsing features.

The biggest change is that MythVideo now supports storage groups. The feature is still in a preview phase, but it means videos can be watched with zero configuration on the frontend. Under the older system. each frontend had its own video directory settings. Thus, if you wanted to share files from a central server, you needed to set up an NFS share.

We’ve been using the new system, which unfortunately doesn’t work for DVD isos, but otherwise works flawlessly. External players, such as mplayer or xine for unsupported file types also does not work. Both are planned for 0.23.

Metadata can be very important to media file storage. As of 0.22, MythVideo uses TheMovieDB as its primary movie grabber. It also includes support for TV series handling with fields for season, episode, and subtitle, and support for TheTVDB to fill in the information. To determine if an item is a movie or a TV program, it parses the filename.

In additional to searching within the interface, MythTV now includes JAMU. We’ve done some basic testing on JAMU, which stands for Just Another Metadata Updater. JAMU provides for mass updating and regular maintenance of associated graphics and text meta data. It can even reorganize the directory structure based on the metadata.

Check back soon, when we will be providing some screenshots off of our MythTV Frontend of it in action. We just need to organize our MythVideo directories so we can best demonstrate these features.

MythTV 0.22 Final to Be Released Next Week

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Terra Theme
Terra Theme

As you may know, MythTV 0.22 has gotten to  release candidates, but now, the team has announced the final version, barring any new critical issues, will be released next week.

Since the initial release candidate two weeks ago, more than 50 updates were submitted.

We’re not sure whether we like the new default theme in actual use, but it doesn’t show of the possibilities the new MythUI offers, and is visually appealing. Our biggest issue was that highlighted items on the new theme have a light box around them which does not contrast significantly.

We’ll be continuing to cover MythTV and the 0.22 release, discussing some of the tricks, tips, and issues we’ve come across.

MythTV 0.22 Release Candidate 1

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Component video cable with RCA connections.
Image via Wikipedia

Yesterday, MythTV unveiled its version 0.22 Release Candidate 1. It has been almost two years since version 0.21 was released, and the change brings a great deal of welcome changes.

  • Support for the HD-PVR 1212 – The Hauppauge HD-PVR captures analog HD video and digital audio from component video inputs and outputs them over USB using the H264 codec. Since cable companies are encrypting almost all of their content, this device ensures the analog loophole can be exploited. We’ve been using the development version of 0.22 for this reason ever since our cable company shut off our other alternative.
  • VDPAU Support – VDPAU is a feature of certain Nvidia graphics cards that permits offload of processor intensive video decoding, include the H264 codec the HD-PVR uses, from the system processor to the graphics card. Thus a slow system can play back HD content without problem.
  • The User Interface has been ported to a new standard, MythUI. It allows for inheritance and menu animation, and takes layout and behavior away from the program and puts it under the control of the theme. And surprisingly, that simplifies things.
  • Automatic Prioritization, which keeps track of what you watch and uses it to increase the priority of shows watched closer to their recording times over shows that are not.
  • A New Channel Scanner – This is a big one, as instead of adding channels when found, it allows you to decide which channels to select, dividing them into New channels, Old Channels, and several different channel types. For example, every time we scan we find a variety of foreign-language channels. Since we don’t speak those languages, it is pointless to add them. This allows us to tell the system to ignore them on scan.
  • HDHomeRun Multi-Rec Support – Multi-Rec has been supported under MythTV for DVB devices for a while. This extends it to the popular HDHomeRun, which we also happen to have. Digital TV, both cable and broadcast, allows for multiple subchannels to be embedded on the same channel frequency. Multirec allows two subchannels from the same channel to be recorded at once, instead of discarding all but the one you are watching. It means that if your cable system puts the local NBC and CBS affiliate on the same channel, you can record them simultaneously on the same tuner.
  • A score of bug fixes and general handling improvements too numerous to list, but can be checked in the Release Notes.
  • MythBrowser now has support for flash and javascript, which means it could be used for Hulu and other Streaming sites(We have yet to test this feature).
  • MythNews, the RSS reader, now has podcast support(We have yet to test this feature).
  • MythVideo now supports videos stored on the backend. Previously, this required adding the videos as NFS shares. New video metadata grabber scripts are now part of the package, and several other features. The networked option is still in its infancy, and is considered beta till the next version.

There are some additional features that you can review, but essentially, MythTV 0.22 is everything we hoped for after all these months. It can only get better from here. And for US residents, the only possible way this software would not be a great addition to your tech offerings is if the cable company locks down their system so much as to prevent you from using it.

The HD-PVR and MythTV

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HDPVR
Image by Geek Tonic via Flickr

For years now, we have run a MythTV DVR. It is a Linux-based software package that turns a computer into a digital video-recorder, complete with scheduling of programs.

We started with a single cable box with an active firewire connection to change the channel and a PVR-250 card we got cheap. That encoded the composite output from the box to MPEG2.

Eventually, we got the hang of firewire, discovered a bunch of tricks to get it to cooperate without crashing, and we’re working almost entirely off of cable with firewire, using a digital tuner to add redundancy on broadcast stations.

Then one day, the cable company shut down every firewire connection. The channel changing still works, but not streaming directly from the box. So we ordered the HD-PVR 1212.

The HD-PVR turns high definition component video and analog or digital audio into H264-encoded files. Ultra-compressed, and requiring a good CPU to decode. It exploits the so-called “analog loophole“, allowing one to record HD video off of an HD source.

And MythTV will support it in Version 0.22. Some have backported the device support to 0.21, the current stable version. So, we upgraded our installation(after a backup) to the 0.22 ‘bleeding’ version. You use development versions at your own risk. Unless you are contributing to the process with information, complaints about things not working will be ignored, mostly.

The HD-PVR seemed very buggy under Version 0.22, capturing at all resolutions, 480i, 720p, 1080i, with AC3 audio. And all of the files were filled with corruption, making it hard to play them back. So, the other night, despite the notation that the ability of the HD-PVR to handle multiple resolutions at a time had been stabilized, we reverted to 720p and AAC analog audio. So far, it has made everything rock solid. We’re doing tests of this over this weekend, after which we’ll try bringing back AC3 audio and/or 1080i, to see how high a quality we can get with complete stability.

The HD-PVR is a decent device that is developing better Linux-based support.  It is unfortunately the best option for recording HD video from other sources, as any digital options are shut down by the content providers.

More on our efforts in this area when all tests are complete.

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