Hi,
Airplay metadata is received into to a pipe that Moode reads. The pipe is first-in-first-out (FIFO) and can become out of sync or contain incomplete metadata, and there is no mechanism for requesting metadata to be sent again by the client.
Generally it works well but not always. When the pipe becomes out of sync it may be necessary to turn Airplay OFF/ON or turn off/on the Airplay connection at the sender (iTunes, etc). Sometimes refreshing Moode screen is also necessary.
If u turn on Debug logging in Moode and examine /var/log/moode.log you will see similar to below when Airplay metadata is working well. Volume cmds and metadata received, ending with "Fget waiting for pipe data..."
-Tim
20161203 083348 engine-sps: Pipe opened
20161203 083348 engine-sps: Airplay active flag=(0)
20161203 083348 engine-sps: $_GET[state]=(undefined)
20161203 083348 engine-sps: Cache[state]=(ok)
20161203 083348 engine-sps: Airplay session not active
20161203 083348 engine-sps: Fget waiting for pipe data...
20161203 083350 engine-sps: Volume=(-20.30,-44.20,-96.30,0.00)
20161203 083350 engine-sps: Volume=(-20.30,-44.20,-96.30,0.00)
20161203 083350 engine-sps: Album=(Progression: Art of the Trio, Vol. 5 (Live))
20161203 083350 engine-sps: Artist=(Brad Mehldau)
20161203 083350 engine-sps: Genre=(Jazz)
20161203 083350 engine-sps: Title=(The Folks Who Live On the Hill (Live))
20161203 083350 engine-sps: Image file created
20161203 083350 engine-sps: Imageurl=(images/spscover.jpg)
20161203 083350 engine-sps: Imagelen=(90349)
20161203 083350 engine-sps: Imagetype=(jpg)
20161203 083350 engine-sps: Imagetype_raw=(ÿØÿàJFIFÿÛC)
20161203 083350 engine-sps: Progress=(Array)
20161203 083350 engine-sps: Updating cache...
20161203 083350 engine-sps: Cache updated
20161203 083350 engine-sps: Pipe data returned to client
20161203 083350 engine-sps: Connect
20161203 083350 engine-sps: Opening pipe...
20161203 083350 engine-sps: Pipe opened
20161203 083351 engine-sps: Airplay active flag=(1)
20161203 083351 engine-sps: $_GET[state]=(ok)
20161203 083351 engine-sps: Cache[state]=(ok)
20161203 083351 engine-sps: Fget waiting for pipe data...
Tim, I'm on 3.0 with thursday's in-place update. No playback (Hifiberry DAC+ Pro). Checked all settings. Can't play radio or music off of USB. Squeezelite and airplay also don't work. Playlist shows songs after a restart, but at a certain point it stops displaying, screen goes blank and volume setting goes to '0'.
Hi,
Log looks normal. When Squeezelite starts it takes exclusive control of ALSA and blocks other audio applications (MPD, Airplay, UPNP).
-Tim
Hi,
I should also mention that skipping back a few tracks then forward can also work to resynchronize the Airplay metadata pipe.
-Tim
Yes, but when I turn it on, moode doesn't appear as a squeezebox renderer on my remote.
Hi,
Couple quick tests on my end with iTunes on Mac and iPhone and no issues with metadata from Apple Music or local files. One time though I did have to skip tracks back and forth to sync up the pipe.
Turn on debug logging and check /var/log/moode.log for engine-sps entries similar to the example in previous post.
-Tim
'ON' for audio not debugging.....
hdmi_drive=2So there is output to a screen during boot only.
hdmi_drive=1 as default would make attaching a screen to debug possible.
What's needed is a second switch that toggles Hdmi output to either text or audio with Hdmi=ON and Hdmi=Text as the defaults.
cheers Bob.
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it looks like that:
The artist/title is submitted, but the coverart not
Code:
20161203 184253 engine-sps: Connect
20161203 184253 engine-sps: Opening pipe...
20161203 184253 engine-sps: Pipe opened
20161203 184253 engine-sps: Airplay active flag=(1)
20161203 184253 engine-sps: $_GET[state]=(ok)
20161203 184253 engine-sps: Cache[state]=(ok)
20161203 184253 engine-sps: Fget waiting for pipe data...The artist/title is submitted, but the coverart not
'ON' for audio not debugging.....
So there is output to a screen during boot only.
hdmi_drive=1 as default would make attaching a screen to debug possible.
What's needed is a second switch that toggles Hdmi output to either text or audio with Hdmi=ON and Hdmi=Text as the defaults.
cheers Bob.
Hi Bob,
I was referring to the HDMI port ON/OFF setting in Moode System config. This actually turns the port off.
-Tim
Thank you. Will try that. Couple more question. How do I change Squeezelite to up sample everything to 384K with advance kernel in place.
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Yes, the port is off or on but the default 'on' is for audio....
Another switch below it to toggle Text or Audio as the active output when the port is switched on with the default being text.
Yes, the port is off or on but the default 'on' is for audio....
Another switch below it to toggle Text or Audio as the active output when the port is switched on with the default being text.
I can support Terminal via ssh.
-Tim
Hi,
First, CHECK for software update, INSTALL, reboot
Linux kernel: Advanced
CPU governor: Performance
MPD scheduler policy: Try FIFO on multi-core CPU, RR on single-core CPU
FIFO and RR are real-time scheduler policies that enable MPD to have priority over other tasks.
With the FIFO scheduling policy, a thread will be suspended when any of 3 conditions occurs:
1. It is blocked by accessing synchronize resource (I/O block, mutex, semaphore...)
2. It is preempted by a higher priority thread
3. It volunteers to give up control of processor (call sleep() or pthread_yield())
In the Round Robin (RR) scheduling policy, a thread will be suspended when any of 4 conditions occurs:
1. Same as FIFO
2. Same as FIFO
3. Same as FIFO
4. Its Time Slice expires.
As you can see, RR includes a time slice component which guarantees that a bad behaving thread can't entirely monopolize the CPU and starve other threads.
-Tim