Difference between revisions of "AirTunes/AirPlay"

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(Troubleshooting info on Airplay from http://www.gossamer-threads.com/lists/mythtv/users/580235)
(Non-functional since iOS 9(?))
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MythTV supports '''AirPlay''' for streaming audio, video and photos from Apple iTunes & iOS devices to MythFrontend.  MythFrontend mimics most of the AirPlay functions of an AppleTV.
For a period, MythTV used a hack to support Airplay.  Changes in iOS software have rendered that hack inoperable and therefore this page is of no use any longer.
{{Note box|''AirPlay'' (and MythTV in general) do not support DRM encrypted videos such as those purchased via the Apple Store. Playback of such content will fail.}}
AirPlay was originally called "AirTunes" when it only supported streaming music.  MythTV support was added in version 0.25 and substantially enhanced in 0.27.
==Enabling AirPlay==
AirPlay is a proprietary format and is encrypted...but the encryption key has been discovered which enables its use in open source applications such as MythTV.
When starting the frontend, you will get the following message in the log:
  RAOP Conn: Failed to read key from: /home/<user>/.mythtv/RAOPKey.rsa
You can obtain the key from the [https://raw.github.com/juhovh/shairplay/master/airport.key shairplay source].  Copy the entire section:-
  ''(and everything inbetween)
Paste into a new file at ''/home/<user>/.mythtv/RAOPKey.rsa'' and restart your frontend.
The correct RSA private key will have the [http://en.wikipedia.org/wiki/SHA-1 SHA-1] sum <code>7a07afcdf4cbb5653318a329906afe5367cb8b13</code>.  You can check this with the command
  ''shell> ''openssl rsa -in ~/.mythtv/RAOPKey.rsa -outform der | sha1sum
Or, on shells missing sha1sum, like OS X:
  ''shell> ''openssl rsa -in ~/.mythtv/RAOPKey.rsa -outform der | openssl sha1
==Using AirPlay==
===iPhone or iPad===
[[File:AirPlay_icon.png|thumb|AirPlay icon]]
From http://support.apple.com/kb/HT4437
Connect your iPhone or iPad and your Apple TV [MythTV frontend, in our case] to the same Wi-Fi network.
iOS 7:  Swipe up from the bottom of the screen to show the Control Centre.  Tap the AirPlay icon and select from the available AirPlay devices.
iOS 6:  On your iPhone or iPad, double-click the Home Button to display your recently used apps.
Swipe your recently used apps twice from left to right until you see the  icon.  Tap the icon to display a list of available AirPlay devices.
[[File:Myth0.25_Airplay_video.PNG|thumb|Example Airplay selection screen from iPhone 5 running iOS 6.]]
If the AirPlay icon does not appear in the Control Centre, it may appear inside supporting applicationsYouTube, Pandora, etc will show the AirPlay icon within the app if a supported target device (MythTV in this case) is detected on the network.
===iTunes (Mac or Windows)===
In iTunes, AirPlay is enabled by the same icon, which should appear in the lower right corner of the window.
===No mirroring===
Note that AirPlay Mirroring is not supported.
=== Can't Start / Nothing in frontend logs ===
Ensure mythfrontend is listening on a network-connected interface, especially if you see initial startup logs that imply AirPlay is active, but you can't get any further. If you have a combined backend/frontend system, you may have a local IP address specified in mythtv-setup -> General (e.g. for IPv4 and ::1 for IPv6), which means mythfrontend isn't listening on any interfaces that are reachable from your local network. Usually, this can be solved simply by checking the "Link-local" box on the same mythtv-setup page, which instructs MythTV to listen on IPv6 addresses that are reachable on your local network. However, this requires that you have IPv6 enabled: check that at least one network-connected interface has an IPv6 address (e.g. "ip -6 addr").
AirPlay may also work without IPv6 so long as mythfrontend is listening on a network-accessible interface (e.g. This is unclear, though. You can try setting the IP addresses specified in mythtv-setup to a network-accessible one, or else leave those fields blank to allow MythTV to choose sensible defaults.
After changing IP addresses, a restart of both the backend and frontend is required.
Of particular note is a peculiarity for Gentoo users:  'avahi' [http://en.wikipedia.org/wiki/Avahi_%28software%29][http://en.gentoo-wiki.com/wiki/Avahi] is a required dependency, yet the current MythTV ebuilds ignore both the 'airplay' and 'avahi' USE flags.  Instead, the 'raop' USE flag must be set to enable AirPlay support.
=== Not seeing AirPlay device in iTunes or iOS device ===
Make sure your firewall isn't blocking Bonjour request.
Bonjour uses port 5353 for UDP.
For Windows XP SP2 and later, check http://support.apple.com/kb/ts2235
On Linux/FreeBSD, make sure the avahi daemons is running.
On Windows, that the mDNS service is running
A message like the following in your logs would show, you can then lookup the error code below
RAOPDevice bonjourregister.cpp:56 (Register) - Bonjour: Error: -65563
(taken from the freely available mDNSResponder source code)
    kDNSServiceErr_Unknown                  = -65537,  /* 0xFFFE FFFF */
    kDNSServiceErr_NoSuchName                = -65538,
    kDNSServiceErr_NoMemory                  = -65539,
    kDNSServiceErr_BadParam                  = -65540,
    kDNSServiceErr_BadReference              = -65541,
    kDNSServiceErr_BadState                  = -65542,
    kDNSServiceErr_BadFlags                  = -65543,
    kDNSServiceErr_Unsupported              = -65544,
    kDNSServiceErr_NotInitialized            = -65545,
    kDNSServiceErr_AlreadyRegistered        = -65547,
    kDNSServiceErr_NameConflict              = -65548,
    kDNSServiceErr_Invalid                  = -65549,
    kDNSServiceErr_Firewall                  = -65550,
    kDNSServiceErr_Incompatible              = -65551,  /* client library incompatible with daemon */
    kDNSServiceErr_BadInterfaceIndex        = -65552,
    kDNSServiceErr_Refused                  = -65553,
    kDNSServiceErr_NoSuchRecord              = -65554,
    kDNSServiceErr_NoAuth                    = -65555,
    kDNSServiceErr_NoSuchKey                = -65556,
    kDNSServiceErr_NATTraversal              = -65557,
    kDNSServiceErr_DoubleNAT                = -65558,
    kDNSServiceErr_BadTime                  = -65559,  /* Codes up to here existed in Tiger */
    kDNSServiceErr_BadSig                    = -65560,
    kDNSServiceErr_BadKey                    = -65561,
    kDNSServiceErr_Transient                = -65562,
    kDNSServiceErr_ServiceNotRunning        = -65563,  /* Background daemon not running */
    kDNSServiceErr_NATPortMappingUnsupported = -65564,  /* NAT doesn't support NAT-PMP or UPnP */
    kDNSServiceErr_NATPortMappingDisabled    = -65565,  /* NAT supports NAT-PMP or UPnP but it's disabled by the administrator */
    kDNSServiceErr_NoRouter                  = -65566,  /* No router currently configured (probably no network connectivity) */
    kDNSServiceErr_PollingMode              = -65567,
    kDNSServiceErr_Timeout                  = -65568
=== Audio glitched in OS X ===
When using MythFrontend on OSX, you may not experience perfect audio playback, this issue is linked to a bug with IPv6 in the Qt software framework used by myth ([http://bugreports.qt-project.org/browse/QTBUG-25634 Bug 25634])
=== Seeking on some streaming content hang the frontend ===
When seeking on some online content, such as when using the YouTube application, may result in the frontend showing "Searching..." and become non-responsive.
You can usually interrupt it by stopping playback on the iPhone and restarting it.

Revision as of 04:08, 15 January 2018

For a period, MythTV used a hack to support Airplay. Changes in iOS software have rendered that hack inoperable and therefore this page is of no use any longer.