[mythtv-commits] Ticket #10087: mythmusic: 88.2KHz/24bit/6ch FLAC/WAV distorts

MythTV noreply at mythtv.org
Wed Aug 28 13:21:20 UTC 2013


#10087: mythmusic: 88.2KHz/24bit/6ch FLAC/WAV distorts
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 Reporter:  ignissport@…          |          Owner:
     Type:  Bug Report - General  |         Status:  closed
 Priority:  trivial               |      Milestone:  unknown
Component:  Plugin - MythMusic    |        Version:  0.24-fixes
 Severity:  low                   |     Resolution:  Works for me
 Keywords:                        |  Ticket locked:  0
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Comment (by ignissport@…):

 I've just run through all the tests myself on v0.26.1-7-gdc1d80 and
 v0.27-beta-89-gfb1a3c5.

 All tests played back perfectly in both versions. My AV receiver reported
 input sample rates that matched the input files, and it changed with the
 tracks.

 The only thing I noticed was playing a raw 5.1 DTS file in the music
 player - it played back fine, but in the past it would perform a DTS
 passthrough, where now it appears to decode it to multichannel PCM. AC3
 passthrough still works fine from Live TV and the video player for streams
 with DD/DTS audio. It's just the music player that decides to decode it to
 PCM. The MythMusic audio device is set to 'default', so I'm not sure why
 it behaves different to the other modules. That said, it's no big deal -
 it doesn't really matter whether the PC or my AV receiver does the DTS
 decoding as the end result is the same.

 Actually, disabling AC3 passthrough in MythMusic would allow the
 visualizations to work with DD/DTS content. However, it seems that nothing
 gets passed to the visualisation at all with multichannel audio - it just
 flatlines (this can be replicated with any 5.1 FLAC from my test suite).
 Let me know if you think I should raise a different ticket for that one.

 Oh, and thanks for looking into it. It's in a much better state now :)

 P.S. PulseAudio - Not even once. alsa:hdmi all the way.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10087#comment:9>
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