[mythtv-commits] Ticket #1104: multi channel audio support

[MythTV]

#1104: multi channel audio support
-------------------------+--------------------------------------------------
 Reporter:  Mark Spieth  |        Owner:  ijr 
     Type:  enhancement  |       Status:  new 
 Priority:  minor        |    Milestone:  0.21
Component:  mythtv       |      Version:  head
 Severity:  medium       |   Resolution:      
  Mlocked:  0            |  
-------------------------+--------------------------------------------------

Comment(by paul at paulcatchpole.co.uk):

 I've given up, my Myth knowledge just isn't up to working out where the
 quantity of channels comes from and why it isn't the same as the number in
 the selected stream!

 I changed MAXCHANNELSELECT from 1 to 0 in the following, to see if that
 made a difference, but to no avail...

 /* Changing this next line inserted by me */
 /** Set to zero to allow any number of AC3 channels. */
 #define MAXCHANNELSELECT 0
 #if MAXCHANNELSELECT
 #define MAX_OUTPUT_CHANNELS compiler error
 #else
 #define MAX_OUTPUT_CHANNELS 2
 #endif


 The only odd thing I note is that after the log segment shown above, where
 the AC3 is showing as 6 channels - I get the following, very late on.
 There is *no* mention of any 'opening device' or similar, after this,
 presumably because the device is already open? In any case, it's odd, but
 it doesn't seem to be related.

 2007-10-08 01:19:48.332 Audio Codec Used: not set
 2007-10-08 01:19:48.332 AO: Ending reconfigure
 2007-10-08 01:19:48.332 NVP: Enabling Audio
 2007-10-08 01:19:48.332 AFD: Audio stream type changed.
 2007-10-08 01:19:48.346 AFD: Trying to reselect audio track
 2007-10-08 01:19:48.346 AFD: Selected track 1: English AC3 5.1ch (A/V
 Stream #2)
 2007-10-08 01:19:48.346 AFD: Initializing audio parms from audio track #1
 2007-10-08 01:19:48.346 AFD: Audio format changed
                         from id( AC3) 48000Hz  6ch  16bps    ; id( AC3)
 48000Hz  2ch  16bps
                         to   id( AC3) 48000Hz  2ch  16bps    ; id( AC3)
 48000Hz  2ch  16bps
 2007-10-08 01:19:48.347 AO: SetEffDsp: 4800000
 2007-10-08 01:19:48.376 AO: kickoffOutputAudioLoop: pid = 8150
 2007-10-08 01:19:48.376 AO: OutputAudioLoop: Play Event

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Ticket URL: <http://svn.mythtv.org/trac/ticket/1104#comment:48>
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